Re: Linux 5.15.81

Greg Kroah-Hartman
2022-12-02T16:56:10Z

diff --git a/Makefile b/Makefile
index b840fe57331f..cc0a1da24943 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 15
-SUBLEVEL = 80
+SUBLEVEL = 81
EXTRAVERSION =
NAME = Trick or Treat

diff --git a/arch/arm/boot/dts/am335x-pcm-953.dtsi b/arch/arm/boot/dts/am335x-pcm-953.dtsi
index 124026fa0d09..f207499461b3 100644
--- a/arch/arm/boot/dts/am335x-pcm-953.dtsi
+++ b/arch/arm/boot/dts/am335x-pcm-953.dtsi
@@ -12,22 +12,20 @@ / {
compatible = "phytec,am335x-pcm-953", "phytec,am335x-phycore-som", "ti,am33xx";

/* Power */
- regulators {
- vcc3v3: fixedregulator@1 {
- compatible = "regulator-fixed";
- regulator-name = "vcc3v3";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-boot-on;
- };
+ vcc3v3: fixedregulator1 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };

- vcc1v8: fixedregulator@2 {
- compatible = "regulator-fixed";
- regulator-name = "vcc1v8";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-boot-on;
- };
+ vcc1v8: fixedregulator2 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
};

/* User IO */
diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
index ca03685f0f08..4783e657b4cb 100644
--- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
@@ -39,6 +39,13 @@ pinctrl_pck0_as_mck: pck0_as_mck {

};

+ usb1 {
+ pinctrl_usb1_vbus_gpio: usb1_vbus_gpio {
+ atmel,pins =
+ <AT91_PIOC 5 AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>; /* PC5 GPIO */
+ };
+ };
+
mmc0_slot1 {
pinctrl_board_mmc0_slot1: mmc0_slot1-board {
atmel,pins =
@@ -84,6 +91,8 @@ macb0: ethernet@fffc4000 {
};

usb1: gadget@fffa4000 {
+ pinctrl-0 = <&pinctrl_usb1_vbus_gpio>;
+ pinctrl-names = "default";
atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6q-prti6q.dts b/arch/arm/boot/dts/imx6q-prti6q.dts
index b4605edfd2ab..d8fa83effd63 100644
--- a/arch/arm/boot/dts/imx6q-prti6q.dts
+++ b/arch/arm/boot/dts/imx6q-prti6q.dts
@@ -364,8 +364,8 @@ wifi {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_wifi>;
interrupts-extended = <&gpio1 30 IRQ_TYPE_LEVEL_HIGH>;
- ref-clock-frequency = "38400000";
- tcxo-clock-frequency = "19200000";
+ ref-clock-frequency = <38400000>;
+ tcxo-clock-frequency = <19200000>;
};
};

diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 25c9d184fa4c..1c57ac401649 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -393,8 +393,10 @@ static void __init mxs_machine_init(void)

root = of_find_node_by_path("/");
ret = of_property_read_string(root, "model", &soc_dev_attr->machine);
- if (ret)
+ if (ret) {
+ kfree(soc_dev_attr);
return;
+ }

soc_dev_attr->family = "Freescale MXS Family";
soc_dev_attr->soc_id = mxs_get_soc_id();
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
index 3ae5d727e367..f07f4b8231f9 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
@@ -207,7 +207,7 @@ &sdmmc {
cap-sd-highspeed;
cd-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
disable-wp;
- max-frequency = <150000000>;
+ max-frequency = <40000000>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
vmmc-supply = <&vcc3v3_baseboard>;
diff --git a/arch/arm64/include/asm/syscall_wrapper.h b/arch/arm64/include/asm/syscall_wrapper.h
index b383b4802a7b..d30217c21eff 100644
--- a/arch/arm64/include/asm/syscall_wrapper.h
+++ b/arch/arm64/include/asm/syscall_wrapper.h
@@ -8,7 +8,7 @@
#ifndef __ASM_SYSCALL_WRAPPER_H
#define __ASM_SYSCALL_WRAPPER_H

-struct pt_regs;
+#include <asm/ptrace.h>

#define SC_ARM64_REGS_TO_ARGS(x, ...) \
__MAP(x,__SC_ARGS \
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 4cb265e15361..3fe816c244ce 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -2000,6 +2000,17 @@ static int pkvm_drop_host_privileges(void)
* once the host stage 2 is installed.
*/
static_branch_enable(&kvm_protected_mode_initialized);
+
+ /*
+ * Fixup the boot mode so that we don't take spurious round
+ * trips via EL2 on cpu_resume. Flush to the PoC for a good
+ * measure, so that it can be observed by a CPU coming out of
+ * suspend with the MMU off.
+ */
+ __boot_cpu_mode[0] = __boot_cpu_mode[1] = BOOT_CPU_MODE_EL1;
+ dcache_clean_poc((unsigned long)__boot_cpu_mode,
+ (unsigned long)(__boot_cpu_mode + 2));
+
on_each_cpu(_kvm_host_prot_finalize, &ret, 1);
return ret;
}
diff --git a/arch/mips/include/asm/fw/fw.h b/arch/mips/include/asm/fw/fw.h
index d0ef8b4892bb..d0494ce4b337 100644
--- a/arch/mips/include/asm/fw/fw.h
+++ b/arch/mips/include/asm/fw/fw.h
@@ -26,6 +26,6 @@ extern char *fw_getcmdline(void);
extern void fw_meminit(void);
extern char *fw_getenv(char *name);
extern unsigned long fw_getenvl(char *name);
-extern void fw_init_early_console(char port);
+extern void fw_init_early_console(void);

#endif /* __ASM_FW_H_ */
diff --git a/arch/mips/pic32/pic32mzda/early_console.c b/arch/mips/pic32/pic32mzda/early_console.c
index 25372e62783b..3cd1b408fa1c 100644
--- a/arch/mips/pic32/pic32mzda/early_console.c
+++ b/arch/mips/pic32/pic32mzda/early_console.c
@@ -27,7 +27,7 @@
#define U_BRG(x) (UART_BASE(x) + 0x40)

static void __iomem *uart_base;
-static char console_port = -1;
+static int console_port = -1;

static int __init configure_uart_pins(int port)
{
@@ -47,7 +47,7 @@ static int __init configure_uart_pins(int port)
return 0;
}

-static void __init configure_uart(char port, int baud)
+static void __init configure_uart(int port, int baud)
{
u32 pbclk;

@@ -60,7 +60,7 @@ static void __init configure_uart(char port, int baud)
uart_base + PIC32_SET(U_STA(port)));
}

-static void __init setup_early_console(char port, int baud)
+static void __init setup_early_console(int port, int baud)
{
if (configure_uart_pins(port))
return;
@@ -130,16 +130,15 @@ static int __init get_baud_from_cmdline(char *arch_cmdline)
return baud;
}

-void __init fw_init_early_console(char port)
+void __init fw_init_early_console(void)
{
char *arch_cmdline = pic32_getcmdline();
- int baud = -1;
+ int baud, port;

uart_base = ioremap(PIC32_BASE_UART, 0xc00);

baud = get_baud_from_cmdline(arch_cmdline);
- if (port == -1)
- port = get_port_from_cmdline(arch_cmdline);
+ port = get_port_from_cmdline(arch_cmdline);

if (port == -1)
port = EARLY_CONSOLE_PORT;
diff --git a/arch/mips/pic32/pic32mzda/init.c b/arch/mips/pic32/pic32mzda/init.c
index 764f2d022fae..429830afff54 100644
--- a/arch/mips/pic32/pic32mzda/init.c
+++ b/arch/mips/pic32/pic32mzda/init.c
@@ -47,7 +47,7 @@ void __init plat_mem_setup(void)
strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);

#ifdef CONFIG_EARLY_PRINTK
- fw_init_early_console(-1);
+ fw_init_early_console();
#endif
pic32_config_init();
}
diff --git a/arch/nios2/boot/Makefile b/arch/nios2/boot/Makefile
index 37dfc7e584bc..0b704c1f379f 100644
--- a/arch/nios2/boot/Makefile
+++ b/arch/nios2/boot/Makefile
@@ -20,7 +20,7 @@ $(obj)/vmlinux.bin: vmlinux FORCE
$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
$(call if_changed,gzip)

-$(obj)/vmImage: $(obj)/vmlinux.gz
+$(obj)/vmImage: $(obj)/vmlinux.gz FORCE
$(call if_changed,uimage)
@$(kecho) 'Kernel: $@ is ready'

diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
index 22f971e97161..2f4d677c9c4f 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
@@ -3,6 +3,8 @@

#include "fu540-c000.dtsi"
#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pwm/pwm.h>

/* Clock frequency (in Hz) of the PCB crystal for rtcclk */
#define RTCCLK_FREQ 1000000
@@ -46,6 +48,42 @@ gpio-restart {
compatible = "gpio-restart";
gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
};
+
+ led-controller {
+ compatible = "pwm-leds";
+
+ led-d1 {
+ pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>;
+ active-low;
+ color = <LED_COLOR_ID_GREEN>;
+ max-brightness = <255>;
+ label = "d1";
+ };
+
+ led-d2 {
+ pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>;
+ active-low;
+ color = <LED_COLOR_ID_GREEN>;
+ max-brightness = <255>;
+ label = "d2";
+ };
+
+ led-d3 {
+ pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>;
+ active-low;
+ color = <LED_COLOR_ID_GREEN>;
+ max-brightness = <255>;
+ label = "d3";
+ };
+
+ led-d4 {
+ pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>;
+ active-low;
+ color = <LED_COLOR_ID_GREEN>;
+ max-brightness = <255>;
+ label = "d4";
+ };
+ };
};

&uart0 {
diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile
index 84ac0fe612e7..db6548509bb3 100644
--- a/arch/riscv/kernel/vdso/Makefile
+++ b/arch/riscv/kernel/vdso/Makefile
@@ -28,6 +28,9 @@ obj-vdso := $(addprefix $(obj)/, $(obj-vdso))

obj-y += vdso.o
CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
+ifneq ($(filter vgettimeofday, $(vdso-syms)),)
+CPPFLAGS_vdso.lds += -DHAS_VGETTIMEOFDAY
+endif

# Disable -pg to prevent insert call site
CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE)
diff --git a/arch/riscv/kernel/vdso/vdso.lds.S b/arch/riscv/kernel/vdso/vdso.lds.S
index e9111f700af0..3729cb28aac8 100644
--- a/arch/riscv/kernel/vdso/vdso.lds.S
+++ b/arch/riscv/kernel/vdso/vdso.lds.S
@@ -65,9 +65,11 @@ VERSION
LINUX_4.15 {
global:
__vdso_rt_sigreturn;
+#ifdef HAS_VGETTIMEOFDAY
__vdso_gettimeofday;
__vdso_clock_gettime;
__vdso_clock_getres;
+#endif
__vdso_getcpu;
__vdso_flush_icache;
local: *;
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index f17ad2daab07..8722bd07c607 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -44,7 +44,7 @@ struct save_area {
u64 fprs[16];
u32 fpc;
u32 prefix;
- u64 todpreg;
+ u32 todpreg;
u64 timer;
u64 todcmp;
u64 vxrs_low[16];
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index b6d48ca5b0f1..762f10cdfb7a 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -45,7 +45,7 @@ EXPORT_SYMBOL_GPL(hv_vp_assist_page);
static int hv_cpu_init(unsigned int cpu)
{
union hv_vp_assist_msr_contents msr = { 0 };
- struct hv_vp_assist_page **hvp = &hv_vp_assist_page[smp_processor_id()];
+ struct hv_vp_assist_page **hvp = &hv_vp_assist_page[cpu];
int ret;

ret = hv_common_cpu_init(cpu);
@@ -55,34 +55,32 @@ static int hv_cpu_init(unsigned int cpu)
if (!hv_vp_assist_page)
return 0;

- if (!*hvp) {
- if (hv_root_partition) {
- /*
- * For root partition we get the hypervisor provided VP assist
- * page, instead of allocating a new page.
- */
- rdmsrl(HV_X64_MSR_VP_ASSIST_PAGE, msr.as_uint64);
- *hvp = memremap(msr.pfn <<
- HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT,
- PAGE_SIZE, MEMREMAP_WB);
- } else {
- /*
- * The VP assist page is an "overlay" page (see Hyper-V TLFS's
- * Section 5.2.1 "GPA Overlay Pages"). Here it must be zeroed
- * out to make sure we always write the EOI MSR in
- * hv_apic_eoi_write() *after* the EOI optimization is disabled
- * in hv_cpu_die(), otherwise a CPU may not be stopped in the
- * case of CPU offlining and the VM will hang.
- */
+ if (hv_root_partition) {
+ /*
+ * For root partition we get the hypervisor provided VP assist
+ * page, instead of allocating a new page.
+ */
+ rdmsrl(HV_X64_MSR_VP_ASSIST_PAGE, msr.as_uint64);
+ *hvp = memremap(msr.pfn << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT,
+ PAGE_SIZE, MEMREMAP_WB);
+ } else {
+ /*
+ * The VP assist page is an "overlay" page (see Hyper-V TLFS's
+ * Section 5.2.1 "GPA Overlay Pages"). Here it must be zeroed
+ * out to make sure we always write the EOI MSR in
+ * hv_apic_eoi_write() *after* the EOI optimization is disabled
+ * in hv_cpu_die(), otherwise a CPU may not be stopped in the
+ * case of CPU offlining and the VM will hang.
+ */
+ if (!*hvp)
*hvp = __vmalloc(PAGE_SIZE, GFP_KERNEL | __GFP_ZERO);
- if (*hvp)
- msr.pfn = vmalloc_to_pfn(*hvp);
- }
- WARN_ON(!(*hvp));
- if (*hvp) {
- msr.enable = 1;
- wrmsrl(HV_X64_MSR_VP_ASSIST_PAGE, msr.as_uint64);
- }
+ if (*hvp)
+ msr.pfn = vmalloc_to_pfn(*hvp);
+
+ }
+ if (!WARN_ON(!(*hvp))) {
+ msr.enable = 1;
+ wrmsrl(HV_X64_MSR_VP_ASSIST_PAGE, msr.as_uint64);
}

return 0;
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 2b56bfef9917..f3cb8c8bf8d9 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -303,6 +303,9 @@
#define X86_FEATURE_USE_IBPB_FW (11*32+16) /* "" Use IBPB during runtime firmware calls */
#define X86_FEATURE_RSB_VMEXIT_LITE (11*32+17) /* "" Fill RSB on VM exit when EIBRS is enabled */

+
+#define X86_FEATURE_MSR_TSX_CTRL (11*32+20) /* "" MSR IA32_TSX_CTRL (Intel) implemented */
+
/* Intel-defined CPU features, CPUID level 0x00000007:1 (EAX), word 12 */
#define X86_FEATURE_AVX_VNNI (12*32+ 4) /* AVX VNNI instructions */
#define X86_FEATURE_AVX512_BF16 (12*32+ 5) /* AVX512 BFLOAT16 instructions */
diff --git a/arch/x86/kernel/cpu/sgx/ioctl.c b/arch/x86/kernel/cpu/sgx/ioctl.c
index 83df20e3e633..217777c029ee 100644
--- a/arch/x86/kernel/cpu/sgx/ioctl.c
+++ b/arch/x86/kernel/cpu/sgx/ioctl.c
@@ -372,6 +372,29 @@ static int sgx_encl_add_page(struct sgx_encl *encl, unsigned long src,
return ret;
}

+/*
+ * Ensure user provided offset and length values are valid for
+ * an enclave.
+ */
+static int sgx_validate_offset_length(struct sgx_encl *encl,
+ unsigned long offset,
+ unsigned long length)
+{
+ if (!IS_ALIGNED(offset, PAGE_SIZE))
+ return -EINVAL;
+
+ if (!length || !IS_ALIGNED(length, PAGE_SIZE))
+ return -EINVAL;
+
+ if (offset + length < offset)
+ return -EINVAL;
+
+ if (offset + length - PAGE_SIZE >= encl->size)
+ return -EINVAL;
+
+ return 0;
+}
+
/**
* sgx_ioc_enclave_add_pages() - The handler for %SGX_IOC_ENCLAVE_ADD_PAGES
* @encl: an enclave pointer
@@ -425,14 +448,10 @@ static long sgx_ioc_enclave_add_pages(struct sgx_encl *encl, void __user *arg)
if (copy_from_user(&add_arg, arg, sizeof(add_arg)))
return -EFAULT;

- if (!IS_ALIGNED(add_arg.offset, PAGE_SIZE) ||
- !IS_ALIGNED(add_arg.src, PAGE_SIZE))
- return -EINVAL;
-
- if (!add_arg.length || add_arg.length & (PAGE_SIZE - 1))
+ if (!IS_ALIGNED(add_arg.src, PAGE_SIZE))
return -EINVAL;

- if (add_arg.offset + add_arg.length - PAGE_SIZE >= encl->size)
+ if (sgx_validate_offset_length(encl, add_arg.offset, add_arg.length))
return -EINVAL;

if (copy_from_user(&secinfo, (void __user *)add_arg.secinfo,
diff --git a/arch/x86/kernel/cpu/tsx.c b/arch/x86/kernel/cpu/tsx.c
index ec7bbac3a9f2..8009c8346d8f 100644
--- a/arch/x86/kernel/cpu/tsx.c
+++ b/arch/x86/kernel/cpu/tsx.c
@@ -58,24 +58,6 @@ static void tsx_enable(void)
wrmsrl(MSR_IA32_TSX_CTRL, tsx);
}

-static bool tsx_ctrl_is_supported(void)
-{
- u64 ia32_cap = x86_read_arch_cap_msr();
-
- /*
- * TSX is controlled via MSR_IA32_TSX_CTRL. However, support for this
- * MSR is enumerated by ARCH_CAP_TSX_MSR bit in MSR_IA32_ARCH_CAPABILITIES.
- *
- * TSX control (aka MSR_IA32_TSX_CTRL) is only available after a
- * microcode update on CPUs that have their MSR_IA32_ARCH_CAPABILITIES
- * bit MDS_NO=1. CPUs with MDS_NO=0 are not planned to get
- * MSR_IA32_TSX_CTRL support even after a microcode update. Thus,
- * tsx= cmdline requests will do nothing on CPUs without
- * MSR_IA32_TSX_CTRL support.
- */
- return !!(ia32_cap & ARCH_CAP_TSX_CTRL_MSR);
-}
-
static enum tsx_ctrl_states x86_get_tsx_auto_mode(void)
{
if (boot_cpu_has_bug(X86_BUG_TAA))
@@ -135,7 +117,7 @@ static void tsx_clear_cpuid(void)
rdmsrl(MSR_TSX_FORCE_ABORT, msr);
msr |= MSR_TFA_TSX_CPUID_CLEAR;
wrmsrl(MSR_TSX_FORCE_ABORT, msr);
- } else if (tsx_ctrl_is_supported()) {
+ } else if (cpu_feature_enabled(X86_FEATURE_MSR_TSX_CTRL)) {
rdmsrl(MSR_IA32_TSX_CTRL, msr);
msr |= TSX_CTRL_CPUID_CLEAR;
wrmsrl(MSR_IA32_TSX_CTRL, msr);
@@ -158,7 +140,8 @@ static void tsx_dev_mode_disable(void)
u64 mcu_opt_ctrl;

/* Check if RTM_ALLOW exists */
- if (!boot_cpu_has_bug(X86_BUG_TAA) || !tsx_ctrl_is_supported() ||
+ if (!boot_cpu_has_bug(X86_BUG_TAA) ||
+ !cpu_feature_enabled(X86_FEATURE_MSR_TSX_CTRL) ||
!cpu_feature_enabled(X86_FEATURE_SRBDS_CTRL))
return;

@@ -191,7 +174,20 @@ void __init tsx_init(void)
return;
}

- if (!tsx_ctrl_is_supported()) {
+ /*
+ * TSX is controlled via MSR_IA32_TSX_CTRL. However, support for this
+ * MSR is enumerated by ARCH_CAP_TSX_MSR bit in MSR_IA32_ARCH_CAPABILITIES.
+ *
+ * TSX control (aka MSR_IA32_TSX_CTRL) is only available after a
+ * microcode update on CPUs that have their MSR_IA32_ARCH_CAPABILITIES
+ * bit MDS_NO=1. CPUs with MDS_NO=0 are not planned to get
+ * MSR_IA32_TSX_CTRL support even after a microcode update. Thus,
+ * tsx= cmdline requests will do nothing on CPUs without
+ * MSR_IA32_TSX_CTRL support.
+ */
+ if (x86_read_arch_cap_msr() & ARCH_CAP_TSX_CTRL_MSR) {
+ setup_force_cpu_cap(X86_FEATURE_MSR_TSX_CTRL);
+ } else {
tsx_ctrl_state = TSX_CTRL_NOT_SUPPORTED;
return;
}
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 78f1138753e6..e0b4f88b04b3 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -919,6 +919,9 @@ void svm_free_nested(struct vcpu_svm *svm)
if (!svm->nested.initialized)
return;

+ if (WARN_ON_ONCE(svm->vmcb != svm->vmcb01.ptr))
+ svm_switch_vmcb(svm, &svm->vmcb01);
+
svm_vcpu_free_msrpm(svm->nested.msrpm);
svm->nested.msrpm = NULL;

@@ -937,9 +940,6 @@ void svm_free_nested(struct vcpu_svm *svm)
svm->nested.initialized = false;
}

-/*
- * Forcibly leave nested mode in order to be able to reset the VCPU later on.
- */
void svm_leave_nested(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 3116d24945c8..773420203305 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -317,12 +317,6 @@ int svm_set_efer(struct kvm_vcpu *vcpu, u64 efer)
return 0;
}

-static int is_external_interrupt(u32 info)
-{
- info &= SVM_EVTINJ_TYPE_MASK | SVM_EVTINJ_VALID;
- return info == (SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR);
-}
-
static u32 svm_get_interrupt_shadow(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
@@ -1427,6 +1421,7 @@ static void svm_free_vcpu(struct kvm_vcpu *vcpu)
*/
svm_clear_current_vmcb(svm->vmcb);

+ svm_leave_nested(vcpu);
svm_free_nested(svm);

sev_free_vcpu(vcpu);
@@ -3359,15 +3354,6 @@ static int handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath)
return 0;
}

- if (is_external_interrupt(svm->vmcb->control.exit_int_info) &&
- exit_code != SVM_EXIT_EXCP_BASE + PF_VECTOR &&
- exit_code != SVM_EXIT_NPF && exit_code != SVM_EXIT_TASK_SWITCH &&
- exit_code != SVM_EXIT_INTR && exit_code != SVM_EXIT_NMI)
- printk(KERN_ERR "%s: unexpected exit_int_info 0x%x "
- "exit_code 0x%x\n",
- __func__, svm->vmcb->control.exit_int_info,
- exit_code);
-
if (exit_fastpath != EXIT_FASTPATH_NONE)
return 1;

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 91b182fafb43..817632d5a118 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -6276,9 +6276,6 @@ static int vmx_get_nested_state(struct kvm_vcpu *vcpu,
return kvm_state.size;
}

-/*
- * Forcibly leave nested mode in order to be able to reset the VCPU later on.
- */
void vmx_leave_nested(struct kvm_vcpu *vcpu)
{
if (is_guest_mode(vcpu)) {
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c58e23e9b5ec..fcfa3fedf84f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -608,6 +608,12 @@ void kvm_deliver_exception_payload(struct kvm_vcpu *vcpu)
}
EXPORT_SYMBOL_GPL(kvm_deliver_exception_payload);

+/* Forcibly leave the nested mode in cases like a vCPU reset */
+static void kvm_leave_nested(struct kvm_vcpu *vcpu)
+{
+ kvm_x86_ops.nested_ops->leave_nested(vcpu);
+}
+
static void kvm_multiple_exception(struct kvm_vcpu *vcpu,
unsigned nr, bool has_error, u32 error_code,
bool has_payload, unsigned long payload, bool reinject)
@@ -4775,7 +4781,7 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,

if (events->flags & KVM_VCPUEVENT_VALID_SMM) {
if (!!(vcpu->arch.hflags & HF_SMM_MASK) != events->smi.smm) {
- kvm_x86_ops.nested_ops->leave_nested(vcpu);
+ kvm_leave_nested(vcpu);
kvm_smm_changed(vcpu, events->smi.smm);
}

@@ -11111,8 +11117,18 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
unsigned long new_cr0;
u32 eax, dummy;

+ /*
+ * SVM doesn't unconditionally VM-Exit on INIT and SHUTDOWN, thus it's
+ * possible to INIT the vCPU while L2 is active. Force the vCPU back
+ * into L1 as EFER.SVME is cleared on INIT (along with all other EFER
+ * bits), i.e. virtualization is disabled.
+ */
+ if (is_guest_mode(vcpu))
+ kvm_leave_nested(vcpu);
+
kvm_lapic_reset(vcpu, init_event);

+ WARN_ON_ONCE(is_guest_mode(vcpu) || is_smm(vcpu));
vcpu->arch.hflags = 0;

vcpu->arch.smi_pending = 0;
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 7ce9b8dd8757..5dfa40279f0f 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -216,9 +216,15 @@ __ioremap_caller(resource_size_t phys_addr, unsigned long size,
* Mappings have to be page-aligned
*/
offset = phys_addr & ~PAGE_MASK;
- phys_addr &= PHYSICAL_PAGE_MASK;
+ phys_addr &= PAGE_MASK;
size = PAGE_ALIGN(last_addr+1) - phys_addr;

+ /*
+ * Mask out any bits not part of the actual physical
+ * address, like memory encryption bits.
+ */
+ phys_addr &= PHYSICAL_PAGE_MASK;
+
retval = memtype_reserve(phys_addr, (u64)phys_addr + size,
pcm, &new_pcm);
if (retval) {
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 3c1eadc5a77a..f5133d620d4e 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -513,16 +513,23 @@ static int pm_cpu_check(const struct x86_cpu_id *c)

static void pm_save_spec_msr(void)
{
- u32 spec_msr_id[] = {
- MSR_IA32_SPEC_CTRL,
- MSR_IA32_TSX_CTRL,
- MSR_TSX_FORCE_ABORT,
- MSR_IA32_MCU_OPT_CTRL,
- MSR_AMD64_LS_CFG,
- MSR_AMD64_DE_CFG,
+ struct msr_enumeration {
+ u32 msr_no;
+ u32 feature;
+ } msr_enum[] = {
+ { MSR_IA32_SPEC_CTRL, X86_FEATURE_MSR_SPEC_CTRL },
+ { MSR_IA32_TSX_CTRL, X86_FEATURE_MSR_TSX_CTRL },
+ { MSR_TSX_FORCE_ABORT, X86_FEATURE_TSX_FORCE_ABORT },
+ { MSR_IA32_MCU_OPT_CTRL, X86_FEATURE_SRBDS_CTRL },
+ { MSR_AMD64_LS_CFG, X86_FEATURE_LS_CFG_SSBD },
+ { MSR_AMD64_DE_CFG, X86_FEATURE_LFENCE_RDTSC },
};
+ int i;

- msr_build_context(spec_msr_id, ARRAY_SIZE(spec_msr_id));
+ for (i = 0; i < ARRAY_SIZE(msr_enum); i++) {
+ if (boot_cpu_has(msr_enum[i].feature))
+ msr_build_context(&msr_enum[i].msr_no, 1);
+ }
}

static int pm_check_save_msr(void)
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index e2e765a54fe9..a8d0b4c71b05 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -613,6 +613,10 @@ struct bfq_group *bfq_bio_bfqg(struct bfq_data *bfqd, struct bio *bio)
struct bfq_group *bfqg;

while (blkg) {
+ if (!blkg->online) {
+ blkg = blkg->parent;
+ continue;
+ }
bfqg = blkg_to_bfqg(blkg);
if (bfqg->online) {
bio_associate_blkg_from_css(bio, &blkg->blkcg->css);
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 8ed450125c92..6acfb896b2e5 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -753,6 +753,12 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
const char *failure_string;
struct binder_buffer *buffer;

+ if (unlikely(vma->vm_mm != alloc->vma_vm_mm)) {
+ ret = -EINVAL;
+ failure_string = "invalid vma->vm_mm";
+ goto err_invalid_mm;
+ }
+
mutex_lock(&binder_alloc_mmap_lock);
if (alloc->buffer_size) {
ret = -EBUSY;
@@ -799,6 +805,7 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
alloc->buffer_size = 0;
err_already_mapped:
mutex_unlock(&binder_alloc_mmap_lock);
+err_invalid_mm:
binder_alloc_debug(BINDER_DEBUG_USER_ERROR,
"%s: %d %lx-%lx %s failed %d\n", __func__,
alloc->pid, vma->vm_start, vma->vm_end,
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index ef41cb385a0d..061d2f8feeb5 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3988,44 +3988,51 @@ void ata_scsi_dump_cdb(struct ata_port *ap, struct scsi_cmnd *cmd)

int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev)
{
+ struct ata_port *ap = dev->link->ap;
u8 scsi_op = scmd->cmnd[0];
ata_xlat_func_t xlat_func;
- int rc = 0;
+
+ /*
+ * scsi_queue_rq() will defer commands if scsi_host_in_recovery().
+ * However, this check is done without holding the ap->lock (a libata
+ * specific lock), so we can have received an error irq since then,
+ * therefore we must check if EH is pending, while holding ap->lock.
+ */
+ if (ap->pflags & (ATA_PFLAG_EH_PENDING | ATA_PFLAG_EH_IN_PROGRESS))
+ return SCSI_MLQUEUE_DEVICE_BUSY;
+
+ if (unlikely(!scmd->cmd_len))
+ goto bad_cdb_len;

if (dev->class == ATA_DEV_ATA || dev->class == ATA_DEV_ZAC) {
- if (unlikely(!scmd->cmd_len || scmd->cmd_len > dev->cdb_len))
+ if (unlikely(scmd->cmd_len > dev->cdb_len))
goto bad_cdb_len;

xlat_func = ata_get_xlat_func(dev, scsi_op);
- } else {
- if (unlikely(!scmd->cmd_len))
- goto bad_cdb_len;
+ } else if (likely((scsi_op != ATA_16) || !atapi_passthru16)) {
+ /* relay SCSI command to ATAPI device */
+ int len = COMMAND_SIZE(scsi_op);

- xlat_func = NULL;
- if (likely((scsi_op != ATA_16) || !atapi_passthru16)) {
- /* relay SCSI command to ATAPI device */
- int len = COMMAND_SIZE(scsi_op);
- if (unlikely(len > scmd->cmd_len ||
- len > dev->cdb_len ||
- scmd->cmd_len > ATAPI_CDB_LEN))
- goto bad_cdb_len;
+ if (unlikely(len > scmd->cmd_len ||
+ len > dev->cdb_len ||
+ scmd->cmd_len > ATAPI_CDB_LEN))
+ goto bad_cdb_len;

- xlat_func = atapi_xlat;
- } else {
- /* ATA_16 passthru, treat as an ATA command */
- if (unlikely(scmd->cmd_len > 16))
- goto bad_cdb_len;
+ xlat_func = atapi_xlat;
+ } else {
+ /* ATA_16 passthru, treat as an ATA command */
+ if (unlikely(scmd->cmd_len > 16))
+ goto bad_cdb_len;

- xlat_func = ata_get_xlat_func(dev, scsi_op);
- }
+ xlat_func = ata_get_xlat_func(dev, scsi_op);
}

if (xlat_func)
- rc = ata_scsi_translate(dev, scmd, xlat_func);
- else
- ata_scsi_simulate(dev, scmd);
+ return ata_scsi_translate(dev, scmd, xlat_func);

- return rc;
+ ata_scsi_simulate(dev, scmd);
+
+ return 0;

bad_cdb_len:
DPRINTK("bad CDB len=%u, scsi_op=0x%02x, max=%u\n",
diff --git a/drivers/bus/intel-ixp4xx-eb.c b/drivers/bus/intel-ixp4xx-eb.c
index a4388440aca7..91db001eb69a 100644
--- a/drivers/bus/intel-ixp4xx-eb.c
+++ b/drivers/bus/intel-ixp4xx-eb.c
@@ -49,7 +49,7 @@
#define IXP4XX_EXP_SIZE_SHIFT 10
#define IXP4XX_EXP_CNFG_0 BIT(9) /* Always zero */
#define IXP43X_EXP_SYNC_INTEL BIT(8) /* Only on IXP43x */
-#define IXP43X_EXP_EXP_CHIP BIT(7) /* Only on IXP43x */
+#define IXP43X_EXP_EXP_CHIP BIT(7) /* Only on IXP43x, dangerous to touch on IXP42x */
#define IXP4XX_EXP_BYTE_RD16 BIT(6)
#define IXP4XX_EXP_HRDY_POL BIT(5) /* Only on IXP42x */
#define IXP4XX_EXP_MUX_EN BIT(4)
@@ -57,8 +57,6 @@
#define IXP4XX_EXP_WORD BIT(2) /* Always zero */
#define IXP4XX_EXP_WR_EN BIT(1)
#define IXP4XX_EXP_BYTE_EN BIT(0)
-#define IXP42X_RESERVED (BIT(30)|IXP4XX_EXP_CNFG_0|BIT(8)|BIT(7)|IXP4XX_EXP_WORD)
-#define IXP43X_RESERVED (BIT(30)|IXP4XX_EXP_CNFG_0|BIT(5)|IXP4XX_EXP_WORD)

#define IXP4XX_EXP_CNFG0 0x20
#define IXP4XX_EXP_CNFG0_MEM_MAP BIT(31)
@@ -252,10 +250,9 @@ static void ixp4xx_exp_setup_chipselect(struct ixp4xx_eb *eb,
cs_cfg |= val << IXP4XX_EXP_CYC_TYPE_SHIFT;
}

- if (eb->is_42x)
- cs_cfg &= ~IXP42X_RESERVED;
if (eb->is_43x) {
- cs_cfg &= ~IXP43X_RESERVED;
+ /* Should always be zero */
+ cs_cfg &= ~IXP4XX_EXP_WORD;
/*
* This bit for Intel strata flash is currently unused, but let's
* report it if we find one.
diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c
index 60b082fe2ed0..20ed77f2b949 100644
--- a/drivers/bus/sunxi-rsb.c
+++ b/drivers/bus/sunxi-rsb.c
@@ -271,6 +271,9 @@ EXPORT_SYMBOL_GPL(sunxi_rsb_driver_register);
/* common code that starts a transfer */
static int _sunxi_rsb_run_xfer(struct sunxi_rsb *rsb)
{
+ u32 int_mask, status;
+ bool timeout;
+
if (readl(rsb->regs + RSB_CTRL) & RSB_CTRL_START_TRANS) {
dev_dbg(rsb->dev, "RSB transfer still in progress\n");
return -EBUSY;
@@ -278,13 +281,23 @@ static int _sunxi_rsb_run_xfer(struct sunxi_rsb *rsb)

reinit_completion(&rsb->complete);

- writel(RSB_INTS_LOAD_BSY | RSB_INTS_TRANS_ERR | RSB_INTS_TRANS_OVER,
- rsb->regs + RSB_INTE);
+ int_mask = RSB_INTS_LOAD_BSY | RSB_INTS_TRANS_ERR | RSB_INTS_TRANS_OVER;
+ writel(int_mask, rsb->regs + RSB_INTE);
writel(RSB_CTRL_START_TRANS | RSB_CTRL_GLOBAL_INT_ENB,
rsb->regs + RSB_CTRL);

- if (!wait_for_completion_io_timeout(&rsb->complete,
- msecs_to_jiffies(100))) {
+ if (irqs_disabled()) {
+ timeout = readl_poll_timeout_atomic(rsb->regs + RSB_INTS,
+ status, (status & int_mask),
+ 10, 100000);
+ writel(status, rsb->regs + RSB_INTS);
+ } else {
+ timeout = !wait_for_completion_io_timeout(&rsb->complete,
+ msecs_to_jiffies(100));
+ status = rsb->status;
+ }
+
+ if (timeout) {
dev_dbg(rsb->dev, "RSB timeout\n");

/* abort the transfer */
@@ -296,18 +309,18 @@ static int _sunxi_rsb_run_xfer(struct sunxi_rsb *rsb)
return -ETIMEDOUT;
}

- if (rsb->status & RSB_INTS_LOAD_BSY) {
+ if (status & RSB_INTS_LOAD_BSY) {
dev_dbg(rsb->dev, "RSB busy\n");
return -EBUSY;
}

- if (rsb->status & RSB_INTS_TRANS_ERR) {
- if (rsb->status & RSB_INTS_TRANS_ERR_ACK) {
+ if (status & RSB_INTS_TRANS_ERR) {
+ if (status & RSB_INTS_TRANS_ERR_ACK) {
dev_dbg(rsb->dev, "RSB slave nack\n");
return -EINVAL;
}

- if (rsb->status & RSB_INTS_TRANS_ERR_DATA) {
+ if (status & RSB_INTS_TRANS_ERR_DATA) {
dev_dbg(rsb->dev, "RSB transfer data error\n");
return -EIO;
}
@@ -816,14 +829,6 @@ static int sunxi_rsb_remove(struct platform_device *pdev)
return 0;
}

-static void sunxi_rsb_shutdown(struct platform_device *pdev)
-{
- struct sunxi_rsb *rsb = platform_get_drvdata(pdev);
-
- pm_runtime_disable(&pdev->dev);
- sunxi_rsb_hw_exit(rsb);
-}
-
static const struct dev_pm_ops sunxi_rsb_dev_pm_ops = {
SET_RUNTIME_PM_OPS(sunxi_rsb_runtime_suspend,
sunxi_rsb_runtime_resume, NULL)
@@ -839,7 +844,6 @@ MODULE_DEVICE_TABLE(of, sunxi_rsb_of_match_table);
static struct platform_driver sunxi_rsb_driver = {
.probe = sunxi_rsb_probe,
.remove = sunxi_rsb_remove,
- .shutdown = sunxi_rsb_shutdown,
.driver = {
.name = RSB_CTRL_NAME,
.of_match_table = sunxi_rsb_of_match_table,
diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
index 8f5848aa144f..59d158873f4c 100644
--- a/drivers/dma-buf/dma-heap.c
+++ b/drivers/dma-buf/dma-heap.c
@@ -233,18 +233,6 @@ struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info)
return ERR_PTR(-EINVAL);
}

- /* check the name is unique */
- mutex_lock(&heap_list_lock);
- list_for_each_entry(h, &heap_list, list) {
- if (!strcmp(h->name, exp_info->name)) {
- mutex_unlock(&heap_list_lock);
- pr_err("dma_heap: Already registered heap named %s\n",
- exp_info->name);
- return ERR_PTR(-EINVAL);
- }
- }
- mutex_unlock(&heap_list_lock);
-
heap = kzalloc(sizeof(*heap), GFP_KERNEL);
if (!heap)
return ERR_PTR(-ENOMEM);
@@ -283,13 +271,27 @@ struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info)
err_ret = ERR_CAST(dev_ret);
goto err2;
}
- /* Add heap to the list */
+
mutex_lock(&heap_list_lock);
+ /* check the name is unique */
+ list_for_each_entry(h, &heap_list, list) {
+ if (!strcmp(h->name, exp_info->name)) {
+ mutex_unlock(&heap_list_lock);
+ pr_err("dma_heap: Already registered heap named %s\n",
+ exp_info->name);
+ err_ret = ERR_PTR(-EINVAL);
+ goto err3;
+ }
+ }
+
+ /* Add heap to the list */
list_add(&heap->list, &heap_list);
mutex_unlock(&heap_list_lock);

return heap;

+err3:
+ device_destroy(dma_heap_class, heap->heap_devt);
err2:
cdev_del(&heap->heap_cdev);
err1:
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c
index 46cd4ee6bafb..f3743089a1c9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c
@@ -44,5 +44,6 @@ const struct kfd2kgd_calls aldebaran_kfd2kgd = {
.get_atc_vmid_pasid_mapping_info =
kgd_gfx_v9_get_atc_vmid_pasid_mapping_info,
.set_vm_context_page_table_base = kgd_gfx_v9_set_vm_context_page_table_base,
+ .get_cu_occupancy = kgd_gfx_v9_get_cu_occupancy,
.program_trap_handler_settings = kgd_gfx_v9_program_trap_handler_settings
};
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index a1e63ba4c54a..13ca51ff8bd0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -419,11 +419,9 @@ int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data,
if (r)
goto release_object;

- if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) {
- r = amdgpu_mn_register(bo, args->addr);
- if (r)
- goto release_object;
- }
+ r = amdgpu_mn_register(bo, args->addr);
+ if (r)
+ goto release_object;

if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) {
r = amdgpu_ttm_tt_get_user_pages(bo, bo->tbo.ttm->pages);
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index d9f99212e624..72e9b9b80c22 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1374,7 +1374,44 @@ static const struct dmi_system_id hpd_disconnect_quirk_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3460"),
},
},
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Tower Plus 7010"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Tower 7010"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex SFF Plus 7010"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex SFF 7010"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Micro Plus 7010"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Micro 7010"),
+ },
+ },
{}
+ /* TODO: refactor this from a fixed table to a dynamic option */
};

static void retrieve_dmi_info(struct amdgpu_display_manager *dm)
diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
index c65e4d125c8e..013fca9b9c68 100644
--- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
@@ -361,7 +361,8 @@ static const struct dce_audio_registers audio_regs[] = {
audio_regs(2),
audio_regs(3),
audio_regs(4),
- audio_regs(5)
+ audio_regs(5),
+ audio_regs(6),
};

#define DCE120_AUD_COMMON_MASK_SH_LIST(mask_sh)\
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c
index dad3e3741a4e..190af79f3236 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c
@@ -67,22 +67,21 @@ int vega10_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr,
int vega10_fan_ctrl_get_fan_speed_pwm(struct pp_hwmgr *hwmgr,
uint32_t *speed)
{
- uint32_t current_rpm;
- uint32_t percent = 0;
-
- if (hwmgr->thermal_controller.fanInfo.bNoFan)
- return 0;
+ struct amdgpu_device *adev = hwmgr->adev;
+ uint32_t duty100, duty;
+ uint64_t tmp64;

- if (vega10_get_current_rpm(hwmgr, &current_rpm))
- return -1;
+ duty100 = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL1),
+ CG_FDO_CTRL1, FMAX_DUTY100);
+ duty = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_THERMAL_STATUS),
+ CG_THERMAL_STATUS, FDO_PWM_DUTY);

- if (hwmgr->thermal_controller.
- advanceFanControlParameters.usMaxFanRPM != 0)
- percent = current_rpm * 255 /
- hwmgr->thermal_controller.
- advanceFanControlParameters.usMaxFanRPM;
+ if (!duty100)
+ return -EINVAL;

- *speed = MIN(percent, 255);
+ tmp64 = (uint64_t)duty * 255;
+ do_div(tmp64, duty100);
+ *speed = MIN((uint32_t)tmp64, 255);

return 0;
}
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index ca6fa133993c..82a8c184526d 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -368,6 +368,10 @@ static void sienna_cichlid_check_bxco_support(struct smu_context *smu)
((adev->pdev->device == 0x73BF) &&
(adev->pdev->revision == 0xCF)) ||
((adev->pdev->device == 0x7422) &&
+ (adev->pdev->revision == 0x00)) ||
+ ((adev->pdev->device == 0x73A3) &&
+ (adev->pdev->revision == 0x00)) ||
+ ((adev->pdev->device == 0x73E3) &&
(adev->pdev->revision == 0x00)))
smu_baco->platform_support = false;

diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c
index 9faf49354cab..cb52a00ae1b1 100644
--- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c
+++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c
@@ -63,23 +63,45 @@
ssize_t drm_dp_dual_mode_read(struct i2c_adapter *adapter,
u8 offset, void *buffer, size_t size)
{
+ u8 zero = 0;
+ char *tmpbuf = NULL;
+ /*
+ * As sub-addressing is not supported by all adaptors,
+ * always explicitly read from the start and discard
+ * any bytes that come before the requested offset.
+ * This way, no matter whether the adaptor supports it
+ * or not, we'll end up reading the proper data.
+ */
struct i2c_msg msgs[] = {
{
.addr = DP_DUAL_MODE_SLAVE_ADDRESS,
.flags = 0,
.len = 1,
- .buf = &offset,
+ .buf = &zero,
},
{
.addr = DP_DUAL_MODE_SLAVE_ADDRESS,
.flags = I2C_M_RD,
- .len = size,
+ .len = size + offset,
.buf = buffer,
},
};
int ret;

+ if (offset) {
+ tmpbuf = kmalloc(size + offset, GFP_KERNEL);
+ if (!tmpbuf)
+ return -ENOMEM;
+
+ msgs[1].buf = tmpbuf;
+ }
+
ret = i2c_transfer(adapter, msgs, ARRAY_SIZE(msgs));
+ if (tmpbuf)
+ memcpy(buffer, tmpbuf + offset, size);
+
+ kfree(tmpbuf);
+
if (ret < 0)
return ret;
if (ret != ARRAY_SIZE(msgs))
@@ -208,18 +230,6 @@ enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(const struct drm_device *dev,
if (ret)
return DRM_DP_DUAL_MODE_UNKNOWN;

- /*
- * Sigh. Some (maybe all?) type 1 adaptors are broken and ack
- * the offset but ignore it, and instead they just always return
- * data from the start of the HDMI ID buffer. So for a broken
- * type 1 HDMI adaptor a single byte read will always give us
- * 0x44, and for a type 1 DVI adaptor it should give 0x00
- * (assuming it implements any registers). Fortunately neither
- * of those values will match the type 2 signature of the
- * DP_DUAL_MODE_ADAPTOR_ID register so we can proceed with
- * the type 2 adaptor detection safely even in the presence
- * of broken type 1 adaptors.
- */
ret = drm_dp_dual_mode_read(adapter, DP_DUAL_MODE_ADAPTOR_ID,
&adaptor_id, sizeof(adaptor_id));
drm_dbg_kms(dev, "DP dual mode adaptor ID: %02x (err %zd)\n", adaptor_id, ret);
@@ -233,11 +243,10 @@ enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(const struct drm_device *dev,
return DRM_DP_DUAL_MODE_TYPE2_DVI;
}
/*
- * If neither a proper type 1 ID nor a broken type 1 adaptor
- * as described above, assume type 1, but let the user know
- * that we may have misdetected the type.
+ * If not a proper type 1 ID, still assume type 1, but let
+ * the user know that we may have misdetected the type.
*/
- if (!is_type1_adaptor(adaptor_id) && adaptor_id != hdmi_id[0])
+ if (!is_type1_adaptor(adaptor_id))
drm_err(dev, "Unexpected DP dual mode adaptor ID %02x\n", adaptor_id);

}
@@ -343,10 +352,8 @@ EXPORT_SYMBOL(drm_dp_dual_mode_get_tmds_output);
* @enable: enable (as opposed to disable) the TMDS output buffers
*
* Set the state of the TMDS output buffers in the adaptor. For
- * type2 this is set via the DP_DUAL_MODE_TMDS_OEN register. As
- * some type 1 adaptors have problems with registers (see comments
- * in drm_dp_dual_mode_detect()) we avoid touching the register,
- * making this function a no-op on type 1 adaptors.
+ * type2 this is set via the DP_DUAL_MODE_TMDS_OEN register.
+ * Type1 adaptors do not support any register writes.
*
* Returns:
* 0 on success, negative error code on failure
diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 083273736c83..ca0fefeaab20 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -128,6 +128,12 @@ static const struct dmi_system_id orientation_data[] = {
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
},
.driver_data = (void *)&lcd800x1280_rightside_up,
+ }, { /* Acer Switch V 10 (SW5-017) */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
+ },
+ .driver_data = (void *)&lcd800x1280_rightside_up,
}, { /* Anbernic Win600 */
.matches = {
DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index ed8ad3b26395..a09820ada82c 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -982,6 +982,10 @@ void intel_gt_invalidate_tlbs(struct intel_gt *gt)
if (!i915_mmio_reg_offset(rb.reg))
continue;

+ if (GRAPHICS_VER(i915) == 12 && (engine->class == VIDEO_DECODE_CLASS ||
+ engine->class == VIDEO_ENHANCEMENT_CLASS))
+ rb.bit = _MASKED_BIT_ENABLE(rb.bit);
+
intel_uncore_write_fw(uncore, rb.reg, rb.bit);
}

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 611cd8dad46e..4f5affdc6080 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1083,6 +1083,10 @@ static bool host1x_drm_wants_iommu(struct host1x_device *dev)
struct host1x *host1x = dev_get_drvdata(dev->dev.parent);
struct iommu_domain *domain;

+ /* Our IOMMU usage policy doesn't currently play well with GART */
+ if (of_machine_is_compatible("nvidia,tegra20"))
+ return false;
+
/*
* If the Tegra DRM clients are backed by an IOMMU, push buffers are
* likely to be allocated beyond the 32-bit boundary if sufficient
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index fc9f54282f7d..c2a4bf2aae61 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -204,6 +204,10 @@ static void host1x_setup_sid_table(struct host1x *host)

static bool host1x_wants_iommu(struct host1x *host1x)
{
+ /* Our IOMMU usage policy doesn't currently play well with GART */
+ if (of_machine_is_compatible("nvidia,tegra20"))
+ return false;
+
/*
* If we support addressing a maximum of 32 bits of physical memory
* and if the host1x firewall is enabled, there's no need to enable
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 07003019263a..d8dc5cc5e3a8 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -531,13 +531,17 @@ static void vmbus_add_channel_work(struct work_struct *work)
* Add the new device to the bus. This will kick off device-driver
* binding which eventually invokes the device driver's AddDevice()
* method.
+ *
+ * If vmbus_device_register() fails, the 'device_obj' is freed in
+ * vmbus_device_release() as called by device_unregister() in the
+ * error path of vmbus_device_register(). In the outside error
+ * path, there's no need to free it.
*/
ret = vmbus_device_register(newchannel->device_obj);

if (ret != 0) {
pr_err("unable to add child device object (relid %d)\n",
newchannel->offermsg.child_relid);
- kfree(newchannel->device_obj);
goto err_deq_chan;
}

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index ecfc299834e1..b906a3a7941c 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -2109,6 +2109,7 @@ int vmbus_device_register(struct hv_device *child_device_obj)
ret = device_register(&child_device_obj->device);
if (ret) {
pr_err("Unable to register child device\n");
+ put_device(&child_device_obj->device);
return ret;
}

diff --git a/drivers/iio/industrialio-sw-trigger.c b/drivers/iio/industrialio-sw-trigger.c
index 9ae793a70b8b..a7714d32a641 100644
--- a/drivers/iio/industrialio-sw-trigger.c
+++ b/drivers/iio/industrialio-sw-trigger.c
@@ -58,8 +58,12 @@ int iio_register_sw_trigger_type(struct iio_sw_trigger_type *t)

t->group = configfs_register_default_group(iio_triggers_group, t->name,
&iio_trigger_type_group_type);
- if (IS_ERR(t->group))
+ if (IS_ERR(t->group)) {
+ mutex_lock(&iio_trigger_types_lock);
+ list_del(&t->list);
+ mutex_unlock(&iio_trigger_types_lock);
ret = PTR_ERR(t->group);
+ }

return ret;
}
diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c
index 4141c0fa7bc4..7c4353317337 100644
--- a/drivers/iio/light/apds9960.c
+++ b/drivers/iio/light/apds9960.c
@@ -54,9 +54,6 @@
#define APDS9960_REG_CONTROL_PGAIN_MASK_SHIFT 2

#define APDS9960_REG_CONFIG_2 0x90
-#define APDS9960_REG_CONFIG_2_GGAIN_MASK 0x60
-#define APDS9960_REG_CONFIG_2_GGAIN_MASK_SHIFT 5
-
#define APDS9960_REG_ID 0x92

#define APDS9960_REG_STATUS 0x93
@@ -77,6 +74,9 @@
#define APDS9960_REG_GCONF_1_GFIFO_THRES_MASK_SHIFT 6

#define APDS9960_REG_GCONF_2 0xa3
+#define APDS9960_REG_GCONF_2_GGAIN_MASK 0x60
+#define APDS9960_REG_GCONF_2_GGAIN_MASK_SHIFT 5
+
#define APDS9960_REG_GOFFSET_U 0xa4
#define APDS9960_REG_GOFFSET_D 0xa5
#define APDS9960_REG_GPULSE 0xa6
@@ -396,9 +396,9 @@ static int apds9960_set_pxs_gain(struct apds9960_data *data, int val)
}

ret = regmap_update_bits(data->regmap,
- APDS9960_REG_CONFIG_2,
- APDS9960_REG_CONFIG_2_GGAIN_MASK,
- idx << APDS9960_REG_CONFIG_2_GGAIN_MASK_SHIFT);
+ APDS9960_REG_GCONF_2,
+ APDS9960_REG_GCONF_2_GGAIN_MASK,
+ idx << APDS9960_REG_GCONF_2_GGAIN_MASK_SHIFT);
if (!ret)
data->pxs_gain = idx;
mutex_unlock(&data->lock);
diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h
index bc06271fa38b..5e2d2d4d87b5 100644
--- a/drivers/iio/pressure/ms5611.h
+++ b/drivers/iio/pressure/ms5611.h
@@ -25,13 +25,6 @@ enum {
MS5607,
};

-struct ms5611_chip_info {
- u16 prom[MS5611_PROM_WORDS_NB];
-
- int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info,
- s32 *temp, s32 *pressure);
-};
-
/*
* OverSampling Rate descriptor.
* Warning: cmd MUST be kept aligned on a word boundary (see
@@ -50,12 +43,15 @@ struct ms5611_state {
const struct ms5611_osr *pressure_osr;
const struct ms5611_osr *temp_osr;

- int (*reset)(struct device *dev);
- int (*read_prom_word)(struct device *dev, int index, u16 *word);
- int (*read_adc_temp_and_pressure)(struct device *dev,
+ u16 prom[MS5611_PROM_WORDS_NB];
+
+ int (*reset)(struct ms5611_state *st);
+ int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word);
+ int (*read_adc_temp_and_pressure)(struct ms5611_state *st,
s32 *temp, s32 *pressure);

- struct ms5611_chip_info *chip_info;
+ int (*compensate_temp_and_pressure)(struct ms5611_state *st, s32 *temp,
+ s32 *pressure);
struct regulator *vdd;
};

diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c
index 214b0d25f598..874a73b3ea9d 100644
--- a/drivers/iio/pressure/ms5611_core.c
+++ b/drivers/iio/pressure/ms5611_core.c
@@ -85,8 +85,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev)
struct ms5611_state *st = iio_priv(indio_dev);

for (i = 0; i < MS5611_PROM_WORDS_NB; i++) {
- ret = st->read_prom_word(&indio_dev->dev,
- i, &st->chip_info->prom[i]);
+ ret = st->read_prom_word(st, i, &st->prom[i]);
if (ret < 0) {
dev_err(&indio_dev->dev,
"failed to read prom at %d\n", i);
@@ -94,7 +93,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev)
}
}

- if (!ms5611_prom_is_valid(st->chip_info->prom, MS5611_PROM_WORDS_NB)) {
+ if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) {
dev_err(&indio_dev->dev, "PROM integrity check failed\n");
return -ENODEV;
}
@@ -108,28 +107,27 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev,
int ret;
struct ms5611_state *st = iio_priv(indio_dev);

- ret = st->read_adc_temp_and_pressure(&indio_dev->dev, temp, pressure);
+ ret = st->read_adc_temp_and_pressure(st, temp, pressure);
if (ret < 0) {
dev_err(&indio_dev->dev,
"failed to read temperature and pressure\n");
return ret;
}

- return st->chip_info->temp_and_pressure_compensate(st->chip_info,
- temp, pressure);
+ return st->compensate_temp_and_pressure(st, temp, pressure);
}

-static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info,
+static int ms5611_temp_and_pressure_compensate(struct ms5611_state *st,
s32 *temp, s32 *pressure)
{
s32 t = *temp, p = *pressure;
s64 off, sens, dt;

- dt = t - (chip_info->prom[5] << 8);
- off = ((s64)chip_info->prom[2] << 16) + ((chip_info->prom[4] * dt) >> 7);
- sens = ((s64)chip_info->prom[1] << 15) + ((chip_info->prom[3] * dt) >> 8);
+ dt = t - (st->prom[5] << 8);
+ off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7);
+ sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8);

- t = 2000 + ((chip_info->prom[6] * dt) >> 23);
+ t = 2000 + ((st->prom[6] * dt) >> 23);
if (t < 2000) {
s64 off2, sens2, t2;

@@ -155,17 +153,17 @@ static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_inf
return 0;
}

-static int ms5607_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info,
+static int ms5607_temp_and_pressure_compensate(struct ms5611_state *st,
s32 *temp, s32 *pressure)
{
s32 t = *temp, p = *pressure;
s64 off, sens, dt;

- dt = t - (chip_info->prom[5] << 8);
- off = ((s64)chip_info->prom[2] << 17) + ((chip_info->prom[4] * dt) >> 6);
- sens = ((s64)chip_info->prom[1] << 16) + ((chip_info->prom[3] * dt) >> 7);
+ dt = t - (st->prom[5] << 8);
+ off = ((s64)st->prom[2] << 17) + ((st->prom[4] * dt) >> 6);
+ sens = ((s64)st->prom[1] << 16) + ((st->prom[3] * dt) >> 7);

- t = 2000 + ((chip_info->prom[6] * dt) >> 23);
+ t = 2000 + ((st->prom[6] * dt) >> 23);
if (t < 2000) {
s64 off2, sens2, t2, tmp;

@@ -196,7 +194,7 @@ static int ms5611_reset(struct iio_dev *indio_dev)
int ret;
struct ms5611_state *st = iio_priv(indio_dev);

- ret = st->reset(&indio_dev->dev);
+ ret = st->reset(st);
if (ret < 0) {
dev_err(&indio_dev->dev, "failed to reset device\n");
return ret;
@@ -343,15 +341,6 @@ static int ms5611_write_raw(struct iio_dev *indio_dev,

static const unsigned long ms5611_scan_masks[] = {0x3, 0};

-static struct ms5611_chip_info chip_info_tbl[] = {
- [MS5611] = {
- .temp_and_pressure_compensate = ms5611_temp_and_pressure_compensate,
- },
- [MS5607] = {
- .temp_and_pressure_compensate = ms5607_temp_and_pressure_compensate,
- }
-};
-
static const struct iio_chan_spec ms5611_channels[] = {
{
.type = IIO_PRESSURE,
@@ -434,7 +423,20 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev,
struct ms5611_state *st = iio_priv(indio_dev);

mutex_init(&st->lock);
- st->chip_info = &chip_info_tbl[type];
+
+ switch (type) {
+ case MS5611:
+ st->compensate_temp_and_pressure =
+ ms5611_temp_and_pressure_compensate;
+ break;
+ case MS5607:
+ st->compensate_temp_and_pressure =
+ ms5607_temp_and_pressure_compensate;
+ break;
+ default:
+ return -EINVAL;
+ }
+
st->temp_osr =
&ms5611_avail_temp_osr[ARRAY_SIZE(ms5611_avail_temp_osr) - 1];
st->pressure_osr =
diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c
index 7c04f730430c..cccc40f7df0b 100644
--- a/drivers/iio/pressure/ms5611_i2c.c
+++ b/drivers/iio/pressure/ms5611_i2c.c
@@ -20,17 +20,15 @@

#include "ms5611.h"

-static int ms5611_i2c_reset(struct device *dev)
+static int ms5611_i2c_reset(struct ms5611_state *st)
{
- struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
-
return i2c_smbus_write_byte(st->client, MS5611_RESET);
}

-static int ms5611_i2c_read_prom_word(struct device *dev, int index, u16 *word)
+static int ms5611_i2c_read_prom_word(struct ms5611_state *st, int index,
+ u16 *word)
{
int ret;
- struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));

ret = i2c_smbus_read_word_swapped(st->client,
MS5611_READ_PROM_WORD + (index << 1));
@@ -57,11 +55,10 @@ static int ms5611_i2c_read_adc(struct ms5611_state *st, s32 *val)
return 0;
}

-static int ms5611_i2c_read_adc_temp_and_pressure(struct device *dev,
+static int ms5611_i2c_read_adc_temp_and_pressure(struct ms5611_state *st,
s32 *temp, s32 *pressure)
{
int ret;
- struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
const struct ms5611_osr *osr = st->temp_osr;

ret = i2c_smbus_write_byte(st->client, osr->cmd);
diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c
index f7743ee3318f..3039fe8aa2a2 100644
--- a/drivers/iio/pressure/ms5611_spi.c
+++ b/drivers/iio/pressure/ms5611_spi.c
@@ -15,18 +15,17 @@

#include "ms5611.h"

-static int ms5611_spi_reset(struct device *dev)
+static int ms5611_spi_reset(struct ms5611_state *st)
{
u8 cmd = MS5611_RESET;
- struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));

return spi_write_then_read(st->client, &cmd, 1, NULL, 0);
}

-static int ms5611_spi_read_prom_word(struct device *dev, int index, u16 *word)
+static int ms5611_spi_read_prom_word(struct ms5611_state *st, int index,
+ u16 *word)
{
int ret;
- struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));

ret = spi_w8r16be(st->client, MS5611_READ_PROM_WORD + (index << 1));
if (ret < 0)
@@ -37,11 +36,10 @@ static int ms5611_spi_read_prom_word(struct device *dev, int index, u16 *word)
return 0;
}

-static int ms5611_spi_read_adc(struct device *dev, s32 *val)
+static int ms5611_spi_read_adc(struct ms5611_state *st, s32 *val)
{
int ret;
u8 buf[3] = { MS5611_READ_ADC };
- struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));

ret = spi_write_then_read(st->client, buf, 1, buf, 3);
if (ret < 0)
@@ -52,11 +50,10 @@ static int ms5611_spi_read_adc(struct device *dev, s32 *val)
return 0;
}

-static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev,
+static int ms5611_spi_read_adc_temp_and_pressure(struct ms5611_state *st,
s32 *temp, s32 *pressure)
{
int ret;
- struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
const struct ms5611_osr *osr = st->temp_osr;

/*
@@ -68,7 +65,7 @@ static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev,
return ret;

usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL));
- ret = ms5611_spi_read_adc(dev, temp);
+ ret = ms5611_spi_read_adc(st, temp);
if (ret < 0)
return ret;

@@ -78,7 +75,7 @@ static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev,
return ret;

usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL));
- return ms5611_spi_read_adc(dev, pressure);
+ return ms5611_spi_read_adc(st, pressure);
}

static int ms5611_spi_probe(struct spi_device *spi)
diff --git a/drivers/input/misc/soc_button_array.c b/drivers/input/misc/soc_button_array.c
index efffcf0ebd3b..31c02c2019c1 100644
--- a/drivers/input/misc/soc_button_array.c
+++ b/drivers/input/misc/soc_button_array.c
@@ -18,6 +18,10 @@
#include <linux/gpio.h>
#include <linux/platform_device.h>

+static bool use_low_level_irq;
+module_param(use_low_level_irq, bool, 0444);
+MODULE_PARM_DESC(use_low_level_irq, "Use low-level triggered IRQ instead of edge triggered");
+
struct soc_button_info {
const char *name;
int acpi_index;
@@ -73,6 +77,13 @@ static const struct dmi_system_id dmi_use_low_level_irq[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
},
},
+ {
+ /* Acer Switch V 10 SW5-017, same issue as Acer Switch 10 SW5-012. */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
+ },
+ },
{
/*
* Acer One S1003. _LID method messes with power-button GPIO
@@ -164,7 +175,8 @@ soc_button_device_create(struct platform_device *pdev,
}

/* See dmi_use_low_level_irq[] comment */
- if (!autorepeat && dmi_check_system(dmi_use_low_level_irq)) {
+ if (!autorepeat && (use_low_level_irq ||
+ dmi_check_system(dmi_use_low_level_irq))) {
irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
gpio_keys[n_buttons].irq = irq;
gpio_keys[n_buttons].gpio = -ENOENT;
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index ffad142801b3..973a4c1d5d09 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -191,6 +191,7 @@ static const char * const smbus_pnp_ids[] = {
"SYN3221", /* HP 15-ay000 */
"SYN323d", /* HP Spectre X360 13-w013dx */
"SYN3257", /* HP Envy 13-ad105ng */
+ "SYN3286", /* HP Laptop 15-da3001TU */
NULL
};

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 4b0201cf71f5..3a41ac9af2e7 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -114,18 +114,18 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
.driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_NEVER)
},
{
- /* ASUS ZenBook UX425UA */
+ /* ASUS ZenBook UX425UA/QA */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX425UA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX425"),
},
.driver_data = (void *)(SERIO_QUIRK_PROBE_DEFER | SERIO_QUIRK_RESET_NEVER)
},
{
- /* ASUS ZenBook UM325UA */
+ /* ASUS ZenBook UM325UA/QA */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX325UA_UM325UA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX325"),
},
.driver_data = (void *)(SERIO_QUIRK_PROBE_DEFER | SERIO_QUIRK_RESET_NEVER)
},
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index 9a9deea51163..0b513fcd51d1 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -1039,6 +1039,7 @@ static int goodix_configure_dev(struct goodix_ts_data *ts)
input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);
input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);

+retry_read_config:
/* Read configuration and apply touchscreen parameters */
goodix_read_config(ts);

@@ -1046,6 +1047,16 @@ static int goodix_configure_dev(struct goodix_ts_data *ts)
touchscreen_parse_properties(ts->input_dev, true, &ts->prop);

if (!ts->prop.max_x || !ts->prop.max_y || !ts->max_touch_num) {
+ if (!ts->reset_controller_at_probe &&
+ ts->irq_pin_access_method != IRQ_PIN_ACCESS_NONE) {
+ dev_info(&ts->client->dev, "Config not set, resetting controller\n");
+ /* Retry after a controller reset */
+ ts->reset_controller_at_probe = true;
+ error = goodix_reset(ts);
+ if (error)
+ return error;
+ goto retry_read_config;
+ }
dev_err(&ts->client->dev,
"Invalid config (%d, %d, %d), using defaults\n",
ts->prop.max_x, ts->prop.max_y, ts->max_touch_num);
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index fc1bfffc468f..59a5d06b2d3e 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1620,7 +1620,7 @@ static int its_select_cpu(struct irq_data *d,

cpu = cpumask_pick_least_loaded(d, tmpmask);
} else {
- cpumask_and(tmpmask, irq_data_get_affinity_mask(d), cpu_online_mask);
+ cpumask_copy(tmpmask, aff_mask);

/* If we cannot cross sockets, limit the search to that node */
if ((its_dev->its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_23144) &&
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index d5b827086962..9705f3c358dd 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -259,6 +259,7 @@ struct dm_integrity_c {

struct completion crypto_backoff;

+ bool wrote_to_journal;
bool journal_uptodate;
bool just_formatted;
bool recalculate_flag;
@@ -2361,6 +2362,8 @@ static void integrity_commit(struct work_struct *w)
if (!commit_sections)
goto release_flush_bios;

+ ic->wrote_to_journal = true;
+
i = commit_start;
for (n = 0; n < commit_sections; n++) {
for (j = 0; j < ic->journal_section_entries; j++) {
@@ -2575,10 +2578,6 @@ static void integrity_writer(struct work_struct *w)

unsigned prev_free_sectors;

- /* the following test is not needed, but it tests the replay code */
- if (unlikely(dm_post_suspending(ic->ti)) && !ic->meta_dev)
- return;
-
spin_lock_irq(&ic->endio_wait.lock);
write_start = ic->committed_section;
write_sections = ic->n_committed_sections;
@@ -3085,10 +3084,17 @@ static void dm_integrity_postsuspend(struct dm_target *ti)
drain_workqueue(ic->commit_wq);

if (ic->mode == 'J') {
- if (ic->meta_dev)
- queue_work(ic->writer_wq, &ic->writer_work);
+ queue_work(ic->writer_wq, &ic->writer_work);
drain_workqueue(ic->writer_wq);
dm_integrity_flush_buffers(ic, true);
+ if (ic->wrote_to_journal) {
+ init_journal(ic, ic->free_section,
+ ic->journal_sections - ic->free_section, ic->commit_seq);
+ if (ic->free_section) {
+ init_journal(ic, 0, ic->free_section,
+ next_commit_seq(ic->commit_seq));
+ }
+ }
}

if (ic->mode == 'B') {
@@ -3116,6 +3122,8 @@ static void dm_integrity_resume(struct dm_target *ti)

DEBUG_print("resume\n");

+ ic->wrote_to_journal = false;
+
if (ic->provided_data_sectors != old_provided_data_sectors) {
if (ic->provided_data_sectors > old_provided_data_sectors &&
ic->mode == 'B' &&
diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
index f24623aac2db..4d42b1810ace 100644
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/drivers/mmc/host/sdhci-brcmstb.c
@@ -12,28 +12,55 @@
#include <linux/bitops.h>
#include <linux/delay.h>

+#include "sdhci-cqhci.h"
#include "sdhci-pltfm.h"
#include "cqhci.h"

#define SDHCI_VENDOR 0x78
#define SDHCI_VENDOR_ENHANCED_STRB 0x1
+#define SDHCI_VENDOR_GATE_SDCLK_EN 0x2

-#define BRCMSTB_PRIV_FLAGS_NO_64BIT BIT(0)
-#define BRCMSTB_PRIV_FLAGS_BROKEN_TIMEOUT BIT(1)
+#define BRCMSTB_MATCH_FLAGS_NO_64BIT BIT(0)
+#define BRCMSTB_MATCH_FLAGS_BROKEN_TIMEOUT BIT(1)
+#define BRCMSTB_MATCH_FLAGS_HAS_CLOCK_GATE BIT(2)
+
+#define BRCMSTB_PRIV_FLAGS_HAS_CQE BIT(0)
+#define BRCMSTB_PRIV_FLAGS_GATE_CLOCK BIT(1)

#define SDHCI_ARASAN_CQE_BASE_ADDR 0x200

struct sdhci_brcmstb_priv {
void __iomem *cfg_regs;
- bool has_cqe;
+ unsigned int flags;
};

struct brcmstb_match_priv {
void (*hs400es)(struct mmc_host *mmc, struct mmc_ios *ios);
struct sdhci_ops *ops;
- unsigned int flags;
+ const unsigned int flags;
};

+static inline void enable_clock_gating(struct sdhci_host *host)
+{
+ u32 reg;
+
+ reg = sdhci_readl(host, SDHCI_VENDOR);
+ reg |= SDHCI_VENDOR_GATE_SDCLK_EN;
+ sdhci_writel(host, reg, SDHCI_VENDOR);
+}
+
+void brcmstb_reset(struct sdhci_host *host, u8 mask)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_brcmstb_priv *priv = sdhci_pltfm_priv(pltfm_host);
+
+ sdhci_and_cqhci_reset(host, mask);
+
+ /* Reset will clear this, so re-enable it */
+ if (priv->flags & BRCMSTB_PRIV_FLAGS_GATE_CLOCK)
+ enable_clock_gating(host);
+}
+
static void sdhci_brcmstb_hs400es(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct sdhci_host *host = mmc_priv(mmc);
@@ -129,22 +156,23 @@ static struct sdhci_ops sdhci_brcmstb_ops = {
static struct sdhci_ops sdhci_brcmstb_ops_7216 = {
.set_clock = sdhci_brcmstb_set_clock,
.set_bus_width = sdhci_set_bus_width,
- .reset = sdhci_reset,
+ .reset = brcmstb_reset,
.set_uhs_signaling = sdhci_brcmstb_set_uhs_signaling,
};

static struct brcmstb_match_priv match_priv_7425 = {
- .flags = BRCMSTB_PRIV_FLAGS_NO_64BIT |
- BRCMSTB_PRIV_FLAGS_BROKEN_TIMEOUT,
+ .flags = BRCMSTB_MATCH_FLAGS_NO_64BIT |
+ BRCMSTB_MATCH_FLAGS_BROKEN_TIMEOUT,
.ops = &sdhci_brcmstb_ops,
};

static struct brcmstb_match_priv match_priv_7445 = {
- .flags = BRCMSTB_PRIV_FLAGS_BROKEN_TIMEOUT,
+ .flags = BRCMSTB_MATCH_FLAGS_BROKEN_TIMEOUT,
.ops = &sdhci_brcmstb_ops,
};

static const struct brcmstb_match_priv match_priv_7216 = {
+ .flags = BRCMSTB_MATCH_FLAGS_HAS_CLOCK_GATE,
.hs400es = sdhci_brcmstb_hs400es,
.ops = &sdhci_brcmstb_ops_7216,
};
@@ -176,7 +204,7 @@ static int sdhci_brcmstb_add_host(struct sdhci_host *host,
bool dma64;
int ret;

- if (!priv->has_cqe)
+ if ((priv->flags & BRCMSTB_PRIV_FLAGS_HAS_CQE) == 0)
return sdhci_add_host(host);

dev_dbg(mmc_dev(host->mmc), "CQE is enabled\n");
@@ -225,7 +253,6 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev)
struct sdhci_brcmstb_priv *priv;
struct sdhci_host *host;
struct resource *iomem;
- bool has_cqe = false;
struct clk *clk;
int res;

@@ -244,10 +271,6 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev)
return res;

memset(&brcmstb_pdata, 0, sizeof(brcmstb_pdata));
- if (device_property_read_bool(&pdev->dev, "supports-cqe")) {
- has_cqe = true;
- match_priv->ops->irq = sdhci_brcmstb_cqhci_irq;
- }
brcmstb_pdata.ops = match_priv->ops;
host = sdhci_pltfm_init(pdev, &brcmstb_pdata,
sizeof(struct sdhci_brcmstb_priv));
@@ -258,7 +281,10 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev)

pltfm_host = sdhci_priv(host);
priv = sdhci_pltfm_priv(pltfm_host);
- priv->has_cqe = has_cqe;
+ if (device_property_read_bool(&pdev->dev, "supports-cqe")) {
+ priv->flags |= BRCMSTB_PRIV_FLAGS_HAS_CQE;
+ match_priv->ops->irq = sdhci_brcmstb_cqhci_irq;
+ }

/* Map in the non-standard CFG registers */
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -273,6 +299,14 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev)
if (res)
goto err;

+ /*
+ * Automatic clock gating does not work for SD cards that may
+ * voltage switch so only enable it for non-removable devices.
+ */
+ if ((match_priv->flags & BRCMSTB_MATCH_FLAGS_HAS_CLOCK_GATE) &&
+ (host->mmc->caps & MMC_CAP_NONREMOVABLE))
+ priv->flags |= BRCMSTB_PRIV_FLAGS_GATE_CLOCK;
+
/*
* If the chip has enhanced strobe and it's enabled, add
* callback
@@ -287,14 +321,14 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev)
* properties through mmc_of_parse().
*/
host->caps = sdhci_readl(host, SDHCI_CAPABILITIES);
- if (match_priv->flags & BRCMSTB_PRIV_FLAGS_NO_64BIT)
+ if (match_priv->flags & BRCMSTB_MATCH_FLAGS_NO_64BIT)
host->caps &= ~SDHCI_CAN_64BIT;
host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
host->caps1 &= ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_SDR104 |
SDHCI_SUPPORT_DDR50);
host->quirks |= SDHCI_QUIRK_MISSING_CAPS;

- if (match_priv->flags & BRCMSTB_PRIV_FLAGS_BROKEN_TIMEOUT)
+ if (match_priv->flags & BRCMSTB_MATCH_FLAGS_BROKEN_TIMEOUT)
host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;

res = sdhci_brcmstb_add_host(host, priv);
diff --git a/drivers/net/arcnet/com20020_cs.c b/drivers/net/arcnet/com20020_cs.c
index b88a109b3b15..26ee263d8f3a 100644
--- a/drivers/net/arcnet/com20020_cs.c
+++ b/drivers/net/arcnet/com20020_cs.c
@@ -113,6 +113,7 @@ static int com20020_probe(struct pcmcia_device *p_dev)
struct com20020_dev *info;
struct net_device *dev;
struct arcnet_local *lp;
+ int ret = -ENOMEM;

dev_dbg(&p_dev->dev, "com20020_attach()\n");

@@ -142,12 +143,18 @@ static int com20020_probe(struct pcmcia_device *p_dev)
info->dev = dev;
p_dev->priv = info;

- return com20020_config(p_dev);
+ ret = com20020_config(p_dev);
+ if (ret)
+ goto fail_config;
+
+ return 0;

+fail_config:
+ free_arcdev(dev);
fail_alloc_dev:
kfree(info);
fail_alloc_info:
- return -ENOMEM;
+ return ret;
} /* com20020_attach */

static void com20020_detach(struct pcmcia_device *link)
diff --git a/drivers/net/dsa/sja1105/sja1105_mdio.c b/drivers/net/dsa/sja1105/sja1105_mdio.c
index 215dd17ca790..4059fcc8c832 100644
--- a/drivers/net/dsa/sja1105/sja1105_mdio.c
+++ b/drivers/net/dsa/sja1105/sja1105_mdio.c
@@ -256,6 +256,9 @@ static int sja1105_base_tx_mdio_read(struct mii_bus *bus, int phy, int reg)
u32 tmp;
int rc;

+ if (reg & MII_ADDR_C45)
+ return -EOPNOTSUPP;
+
rc = sja1105_xfer_u32(priv, SPI_READ, regs->mdio_100base_tx + reg,
&tmp, NULL);
if (rc < 0)
@@ -272,6 +275,9 @@ static int sja1105_base_tx_mdio_write(struct mii_bus *bus, int phy, int reg,
const struct sja1105_regs *regs = priv->info->regs;
u32 tmp = val;

+ if (reg & MII_ADDR_C45)
+ return -EOPNOTSUPP;
+
return sja1105_xfer_u32(priv, SPI_WRITE, regs->mdio_100base_tx + reg,
&tmp, NULL);
}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 561395731450..a9f202bbada1 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -795,16 +795,20 @@ static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf)

static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
{
- struct pci_dev *dev;
struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
+ struct pci_dev *dev;
+ bool pending;

if (!vf)
return false;

dev = pci_get_domain_bus_and_slot(vf->domain, vf->bus, vf->devfn);
- if (dev)
- return bnx2x_is_pcie_pending(dev);
- return false;
+ if (!dev)
+ return false;
+ pending = bnx2x_is_pcie_pending(dev);
+ pci_dev_put(dev);
+
+ return pending;
}

int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index 7bd97d98afeb..ae68821dd56d 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -1798,7 +1798,7 @@ static int liquidio_open(struct net_device *netdev)

ifstate_set(lio, LIO_IFSTATE_RUNNING);

- if (!OCTEON_CN23XX_PF(oct) || (OCTEON_CN23XX_PF(oct) && !oct->msix_on)) {
+ if (!OCTEON_CN23XX_PF(oct) || !oct->msix_on) {
ret = setup_tx_poll_fn(netdev);
if (ret)
goto err_poll;
@@ -1828,7 +1828,7 @@ static int liquidio_open(struct net_device *netdev)
return 0;

err_rx_ctrl:
- if (!OCTEON_CN23XX_PF(oct) || (OCTEON_CN23XX_PF(oct) && !oct->msix_on))
+ if (!OCTEON_CN23XX_PF(oct) || !oct->msix_on)
cleanup_tx_poll_fn(netdev);
err_poll:
if (lio->ptp_clock) {
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index c36fed9c3d73..daaffae1a89f 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -1435,8 +1435,10 @@ static acpi_status bgx_acpi_match_id(acpi_handle handle, u32 lvl,
return AE_OK;
}

- if (strncmp(string.pointer, bgx_sel, 4))
+ if (strncmp(string.pointer, bgx_sel, 4)) {
+ kfree(string.pointer);
return AE_OK;
+ }

acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
bgx_acpi_register_phy, NULL, bgx, NULL);
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index 77d765809c1e..222a250fba84 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -1768,7 +1768,7 @@ static void enetc_setup_txbdr(struct enetc_hw *hw, struct enetc_bdr *tx_ring)
/* enable Tx ints by setting pkt thr to 1 */
enetc_txbdr_wr(hw, idx, ENETC_TBICR0, ENETC_TBICR0_ICEN | 0x1);

- tbmr = ENETC_TBMR_EN;
+ tbmr = ENETC_TBMR_EN | ENETC_TBMR_SET_PRIO(tx_ring->prio);
if (tx_ring->ndev->features & NETIF_F_HW_VLAN_CTAG_TX)
tbmr |= ENETC_TBMR_VIH;

@@ -1831,13 +1831,14 @@ static void enetc_setup_rxbdr(struct enetc_hw *hw, struct enetc_bdr *rx_ring)

static void enetc_setup_bdrs(struct enetc_ndev_priv *priv)
{
+ struct enetc_hw *hw = &priv->si->hw;
int i;

for (i = 0; i < priv->num_tx_rings; i++)
- enetc_setup_txbdr(&priv->si->hw, priv->tx_ring[i]);
+ enetc_setup_txbdr(hw, priv->tx_ring[i]);

for (i = 0; i < priv->num_rx_rings; i++)
- enetc_setup_rxbdr(&priv->si->hw, priv->rx_ring[i]);
+ enetc_setup_rxbdr(hw, priv->rx_ring[i]);
}

static void enetc_clear_rxbdr(struct enetc_hw *hw, struct enetc_bdr *rx_ring)
@@ -1870,13 +1871,14 @@ static void enetc_clear_txbdr(struct enetc_hw *hw, struct enetc_bdr *tx_ring)

static void enetc_clear_bdrs(struct enetc_ndev_priv *priv)
{
+ struct enetc_hw *hw = &priv->si->hw;
int i;

for (i = 0; i < priv->num_tx_rings; i++)
- enetc_clear_txbdr(&priv->si->hw, priv->tx_ring[i]);
+ enetc_clear_txbdr(hw, priv->tx_ring[i]);

for (i = 0; i < priv->num_rx_rings; i++)
- enetc_clear_rxbdr(&priv->si->hw, priv->rx_ring[i]);
+ enetc_clear_rxbdr(hw, priv->rx_ring[i]);

udelay(1);
}
@@ -1884,13 +1886,13 @@ static void enetc_clear_bdrs(struct enetc_ndev_priv *priv)
static int enetc_setup_irqs(struct enetc_ndev_priv *priv)
{
struct pci_dev *pdev = priv->si->pdev;
+ struct enetc_hw *hw = &priv->si->hw;
int i, j, err;

for (i = 0; i < priv->bdr_int_num; i++) {
int irq = pci_irq_vector(pdev, ENETC_BDR_INT_BASE_IDX + i);
struct enetc_int_vector *v = priv->int_vector[i];
int entry = ENETC_BDR_INT_BASE_IDX + i;
- struct enetc_hw *hw = &priv->si->hw;

snprintf(v->name, sizeof(v->name), "%s-rxtx%d",
priv->ndev->name, i);
@@ -1978,13 +1980,14 @@ static void enetc_setup_interrupts(struct enetc_ndev_priv *priv)

static void enetc_clear_interrupts(struct enetc_ndev_priv *priv)
{
+ struct enetc_hw *hw = &priv->si->hw;
int i;

for (i = 0; i < priv->num_tx_rings; i++)
- enetc_txbdr_wr(&priv->si->hw, i, ENETC_TBIER, 0);
+ enetc_txbdr_wr(hw, i, ENETC_TBIER, 0);

for (i = 0; i < priv->num_rx_rings; i++)
- enetc_rxbdr_wr(&priv->si->hw, i, ENETC_RBIER, 0);
+ enetc_rxbdr_wr(hw, i, ENETC_RBIER, 0);
}

static int enetc_phylink_connect(struct net_device *ndev)
@@ -2151,6 +2154,7 @@ int enetc_setup_tc_mqprio(struct net_device *ndev, void *type_data)
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
struct tc_mqprio_qopt *mqprio = type_data;
+ struct enetc_hw *hw = &priv->si->hw;
struct enetc_bdr *tx_ring;
int num_stack_tx_queues;
u8 num_tc;
@@ -2167,7 +2171,8 @@ int enetc_setup_tc_mqprio(struct net_device *ndev, void *type_data)
/* Reset all ring priorities to 0 */
for (i = 0; i < priv->num_tx_rings; i++) {
tx_ring = priv->tx_ring[i];
- enetc_set_bdr_prio(&priv->si->hw, tx_ring->index, 0);
+ tx_ring->prio = 0;
+ enetc_set_bdr_prio(hw, tx_ring->index, tx_ring->prio);
}

return 0;
@@ -2186,7 +2191,8 @@ int enetc_setup_tc_mqprio(struct net_device *ndev, void *type_data)
*/
for (i = 0; i < num_tc; i++) {
tx_ring = priv->tx_ring[i];
- enetc_set_bdr_prio(&priv->si->hw, tx_ring->index, i);
+ tx_ring->prio = i;
+ enetc_set_bdr_prio(hw, tx_ring->index, tx_ring->prio);
}

/* Reset the number of netdev queues based on the TC count */
@@ -2296,19 +2302,21 @@ static int enetc_set_rss(struct net_device *ndev, int en)
static void enetc_enable_rxvlan(struct net_device *ndev, bool en)
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
+ struct enetc_hw *hw = &priv->si->hw;
int i;

for (i = 0; i < priv->num_rx_rings; i++)
- enetc_bdr_enable_rxvlan(&priv->si->hw, i, en);
+ enetc_bdr_enable_rxvlan(hw, i, en);
}

static void enetc_enable_txvlan(struct net_device *ndev, bool en)
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
+ struct enetc_hw *hw = &priv->si->hw;
int i;

for (i = 0; i < priv->num_tx_rings; i++)
- enetc_bdr_enable_txvlan(&priv->si->hw, i, en);
+ enetc_bdr_enable_txvlan(hw, i, en);
}

void enetc_set_features(struct net_device *ndev, netdev_features_t features)
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h
index f304cdb854ec..a3b936375c56 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc.h
@@ -91,6 +91,7 @@ struct enetc_bdr {
void __iomem *rcir;
};
u16 index;
+ u16 prio;
int bd_count; /* # of BDs */
int next_to_use;
int next_to_clean;
@@ -423,19 +424,20 @@ int enetc_set_psfp(struct net_device *ndev, bool en);

static inline void enetc_get_max_cap(struct enetc_ndev_priv *priv)
{
+ struct enetc_hw *hw = &priv->si->hw;
u32 reg;

- reg = enetc_port_rd(&priv->si->hw, ENETC_PSIDCAPR);
+ reg = enetc_port_rd(hw, ENETC_PSIDCAPR);
priv->psfp_cap.max_streamid = reg & ENETC_PSIDCAPR_MSK;
/* Port stream filter capability */
- reg = enetc_port_rd(&priv->si->hw, ENETC_PSFCAPR);
+ reg = enetc_port_rd(hw, ENETC_PSFCAPR);
priv->psfp_cap.max_psfp_filter = reg & ENETC_PSFCAPR_MSK;
/* Port stream gate capability */
- reg = enetc_port_rd(&priv->si->hw, ENETC_PSGCAPR);
+ reg = enetc_port_rd(hw, ENETC_PSGCAPR);
priv->psfp_cap.max_psfp_gate = (reg & ENETC_PSGCAPR_SGIT_MSK);
priv->psfp_cap.max_psfp_gatelist = (reg & ENETC_PSGCAPR_GCL_MSK) >> 16;
/* Port flow meter capability */
- reg = enetc_port_rd(&priv->si->hw, ENETC_PFMCAPR);
+ reg = enetc_port_rd(hw, ENETC_PFMCAPR);
priv->psfp_cap.max_psfp_meter = reg & ENETC_PFMCAPR_MSK;
}

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index 3615357cc60f..5efb079ef25f 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -800,9 +800,6 @@ static void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev,

ndev->priv_flags |= IFF_UNICAST_FLT;

- if (si->hw_features & ENETC_SI_F_QBV)
- priv->active_offloads |= ENETC_F_QBV;
-
if (si->hw_features & ENETC_SI_F_PSFP && !enetc_psfp_enable(priv)) {
priv->active_offloads |= ENETC_F_QCI;
ndev->features |= NETIF_F_HW_TC;
@@ -1053,7 +1050,8 @@ static void enetc_pl_mac_link_up(struct phylink_config *config,
int idx;

priv = netdev_priv(pf->si->ndev);
- if (priv->active_offloads & ENETC_F_QBV)
+
+ if (pf->si->hw_features & ENETC_SI_F_QBV)
enetc_sched_speed_set(priv, speed);

if (!phylink_autoneg_inband(mode) &&
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_qos.c b/drivers/net/ethernet/freescale/enetc/enetc_qos.c
index 6b236e0fd806..ba51fb381f0c 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_qos.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_qos.c
@@ -17,8 +17,9 @@ static u16 enetc_get_max_gcl_len(struct enetc_hw *hw)

void enetc_sched_speed_set(struct enetc_ndev_priv *priv, int speed)
{
+ struct enetc_hw *hw = &priv->si->hw;
u32 old_speed = priv->speed;
- u32 pspeed;
+ u32 pspeed, tmp;

if (speed == old_speed)
return;
@@ -39,10 +40,8 @@ void enetc_sched_speed_set(struct enetc_ndev_priv *priv, int speed)
}

priv->speed = speed;
- enetc_port_wr(&priv->si->hw, ENETC_PMR,
- (enetc_port_rd(&priv->si->hw, ENETC_PMR)
- & (~ENETC_PMR_PSPEED_MASK))
- | pspeed);
+ tmp = enetc_port_rd(hw, ENETC_PMR);
+ enetc_port_wr(hw, ENETC_PMR, (tmp & ~ENETC_PMR_PSPEED_MASK) | pspeed);
}

#define ENETC_QOS_ALIGN 64
@@ -50,6 +49,7 @@ static int enetc_setup_taprio(struct net_device *ndev,
struct tc_taprio_qopt_offload *admin_conf)
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
+ struct enetc_hw *hw = &priv->si->hw;
struct enetc_cbd cbd = {.cmd = 0};
struct tgs_gcl_conf *gcl_config;
struct tgs_gcl_data *gcl_data;
@@ -62,15 +62,16 @@ static int enetc_setup_taprio(struct net_device *ndev,
int err;
int i;

- if (admin_conf->num_entries > enetc_get_max_gcl_len(&priv->si->hw))
+ if (admin_conf->num_entries > enetc_get_max_gcl_len(hw))
return -EINVAL;
gcl_len = admin_conf->num_entries;

- tge = enetc_rd(&priv->si->hw, ENETC_QBV_PTGCR_OFFSET);
+ tge = enetc_rd(hw, ENETC_QBV_PTGCR_OFFSET);
if (!admin_conf->enable) {
- enetc_wr(&priv->si->hw,
- ENETC_QBV_PTGCR_OFFSET,
- tge & (~ENETC_QBV_TGE));
+ enetc_wr(hw, ENETC_QBV_PTGCR_OFFSET, tge & ~ENETC_QBV_TGE);
+
+ priv->active_offloads &= ~ENETC_F_QBV;
+
return 0;
}

@@ -124,18 +125,18 @@ static int enetc_setup_taprio(struct net_device *ndev,
cbd.cls = BDCR_CMD_PORT_GCL;
cbd.status_flags = 0;

- enetc_wr(&priv->si->hw, ENETC_QBV_PTGCR_OFFSET,
- tge | ENETC_QBV_TGE);
+ enetc_wr(hw, ENETC_QBV_PTGCR_OFFSET, tge | ENETC_QBV_TGE);

err = enetc_send_cmd(priv->si, &cbd);
if (err)
- enetc_wr(&priv->si->hw,
- ENETC_QBV_PTGCR_OFFSET,
- tge & (~ENETC_QBV_TGE));
+ enetc_wr(hw, ENETC_QBV_PTGCR_OFFSET, tge & ~ENETC_QBV_TGE);

dma_free_coherent(&priv->si->pdev->dev, data_size + ENETC_QOS_ALIGN,
tmp, dma);

+ if (!err)
+ priv->active_offloads |= ENETC_F_QBV;
+
return err;
}

@@ -143,6 +144,8 @@ int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data)
{
struct tc_taprio_qopt_offload *taprio = type_data;
struct enetc_ndev_priv *priv = netdev_priv(ndev);
+ struct enetc_hw *hw = &priv->si->hw;
+ struct enetc_bdr *tx_ring;
int err;
int i;

@@ -151,18 +154,20 @@ int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data)
if (priv->tx_ring[i]->tsd_enable)
return -EBUSY;

- for (i = 0; i < priv->num_tx_rings; i++)
- enetc_set_bdr_prio(&priv->si->hw,
- priv->tx_ring[i]->index,
- taprio->enable ? i : 0);
+ for (i = 0; i < priv->num_tx_rings; i++) {
+ tx_ring = priv->tx_ring[i];
+ tx_ring->prio = taprio->enable ? i : 0;
+ enetc_set_bdr_prio(hw, tx_ring->index, tx_ring->prio);
+ }

err = enetc_setup_taprio(ndev, taprio);
-
- if (err)
- for (i = 0; i < priv->num_tx_rings; i++)
- enetc_set_bdr_prio(&priv->si->hw,
- priv->tx_ring[i]->index,
- taprio->enable ? 0 : i);
+ if (err) {
+ for (i = 0; i < priv->num_tx_rings; i++) {
+ tx_ring = priv->tx_ring[i];
+ tx_ring->prio = taprio->enable ? 0 : i;
+ enetc_set_bdr_prio(hw, tx_ring->index, tx_ring->prio);
+ }
+ }

return err;
}
@@ -183,7 +188,7 @@ int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data)
struct tc_cbs_qopt_offload *cbs = type_data;
u32 port_transmit_rate = priv->speed;
u8 tc_nums = netdev_get_num_tc(ndev);
- struct enetc_si *si = priv->si;
+ struct enetc_hw *hw = &priv->si->hw;
u32 hi_credit_bit, hi_credit_reg;
u32 max_interference_size;
u32 port_frame_max_size;
@@ -204,15 +209,15 @@ int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data)
* lower than this TC have been disabled.
*/
if (tc == prio_top &&
- enetc_get_cbs_enable(&si->hw, prio_next)) {
+ enetc_get_cbs_enable(hw, prio_next)) {
dev_err(&ndev->dev,
"Disable TC%d before disable TC%d\n",
prio_next, tc);
return -EINVAL;
}

- enetc_port_wr(&si->hw, ENETC_PTCCBSR1(tc), 0);
- enetc_port_wr(&si->hw, ENETC_PTCCBSR0(tc), 0);
+ enetc_port_wr(hw, ENETC_PTCCBSR1(tc), 0);
+ enetc_port_wr(hw, ENETC_PTCCBSR0(tc), 0);

return 0;
}
@@ -229,13 +234,13 @@ int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data)
* higher than this TC have been enabled.
*/
if (tc == prio_next) {
- if (!enetc_get_cbs_enable(&si->hw, prio_top)) {
+ if (!enetc_get_cbs_enable(hw, prio_top)) {
dev_err(&ndev->dev,
"Enable TC%d first before enable TC%d\n",
prio_top, prio_next);
return -EINVAL;
}
- bw_sum += enetc_get_cbs_bw(&si->hw, prio_top);
+ bw_sum += enetc_get_cbs_bw(hw, prio_top);
}

if (bw_sum + bw >= 100) {
@@ -244,7 +249,7 @@ int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data)
return -EINVAL;
}

- enetc_port_rd(&si->hw, ENETC_PTCMSDUR(tc));
+ enetc_port_rd(hw, ENETC_PTCMSDUR(tc));

/* For top prio TC, the max_interfrence_size is maxSizedFrame.
*
@@ -264,8 +269,8 @@ int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data)
u32 m0, ma, r0, ra;

m0 = port_frame_max_size * 8;
- ma = enetc_port_rd(&si->hw, ENETC_PTCMSDUR(prio_top)) * 8;
- ra = enetc_get_cbs_bw(&si->hw, prio_top) *
+ ma = enetc_port_rd(hw, ENETC_PTCMSDUR(prio_top)) * 8;
+ ra = enetc_get_cbs_bw(hw, prio_top) *
port_transmit_rate * 10000ULL;
r0 = port_transmit_rate * 1000000ULL;
max_interference_size = m0 + ma +
@@ -285,10 +290,10 @@ int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data)
hi_credit_reg = (u32)div_u64((ENETC_CLK * 100ULL) * hi_credit_bit,
port_transmit_rate * 1000000ULL);

- enetc_port_wr(&si->hw, ENETC_PTCCBSR1(tc), hi_credit_reg);
+ enetc_port_wr(hw, ENETC_PTCCBSR1(tc), hi_credit_reg);

/* Set bw register and enable this traffic class */
- enetc_port_wr(&si->hw, ENETC_PTCCBSR0(tc), bw | ENETC_CBSE);
+ enetc_port_wr(hw, ENETC_PTCCBSR0(tc), bw | ENETC_CBSE);

return 0;
}
@@ -298,6 +303,7 @@ int enetc_setup_tc_txtime(struct net_device *ndev, void *type_data)
struct enetc_ndev_priv *priv = netdev_priv(ndev);
struct tc_etf_qopt_offload *qopt = type_data;
u8 tc_nums = netdev_get_num_tc(ndev);
+ struct enetc_hw *hw = &priv->si->hw;
int tc;

if (!tc_nums)
@@ -313,12 +319,11 @@ int enetc_setup_tc_txtime(struct net_device *ndev, void *type_data)
return -EBUSY;

/* TSD and Qbv are mutually exclusive in hardware */
- if (enetc_rd(&priv->si->hw, ENETC_QBV_PTGCR_OFFSET) & ENETC_QBV_TGE)
+ if (enetc_rd(hw, ENETC_QBV_PTGCR_OFFSET) & ENETC_QBV_TGE)
return -EBUSY;

priv->tx_ring[tc]->tsd_enable = qopt->enable;
- enetc_port_wr(&priv->si->hw, ENETC_PTCTSDR(tc),
- qopt->enable ? ENETC_TSDE : 0);
+ enetc_port_wr(hw, ENETC_PTCTSDR(tc), qopt->enable ? ENETC_TSDE : 0);

return 0;
}
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 629ebdfa48b8..4b2e99be7ef5 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2270,7 +2270,6 @@ static void iavf_disable_vf(struct iavf_adapter *adapter)
iavf_free_queues(adapter);
memset(adapter->vf_res, 0, IAVF_VIRTCHNL_VF_RESOURCE_SIZE);
iavf_shutdown_adminq(&adapter->hw);
- adapter->netdev->flags &= ~IFF_UP;
adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
iavf_change_state(adapter, __IAVF_DOWN);
wake_up(&adapter->down_waitqueue);
@@ -2369,6 +2368,11 @@ static void iavf_reset_task(struct work_struct *work)
iavf_disable_vf(adapter);
mutex_unlock(&adapter->client_lock);
mutex_unlock(&adapter->crit_lock);
+ if (netif_running(netdev)) {
+ rtnl_lock();
+ dev_close(netdev);
+ rtnl_unlock();
+ }
return; /* Do not attempt to reinit. It's dead, Jim. */
}

@@ -2381,6 +2385,7 @@ static void iavf_reset_task(struct work_struct *work)

if (running) {
netif_carrier_off(netdev);
+ netif_tx_stop_all_queues(netdev);
adapter->link_up = false;
iavf_napi_disable_all(adapter);
}
@@ -2503,6 +2508,16 @@ static void iavf_reset_task(struct work_struct *work)

mutex_unlock(&adapter->client_lock);
mutex_unlock(&adapter->crit_lock);
+
+ if (netif_running(netdev)) {
+ /* Close device to ensure that Tx queues will not be started
+ * during netif_device_attach() at the end of the reset task.
+ */
+ rtnl_lock();
+ dev_close(netdev);
+ rtnl_unlock();
+ }
+
dev_err(&adapter->pdev->dev, "failed to allocate resources during reinit\n");
reset_finish:
rtnl_lock();
@@ -4174,23 +4189,21 @@ static int __maybe_unused iavf_resume(struct device *dev_d)
static void iavf_remove(struct pci_dev *pdev)
{
struct iavf_adapter *adapter = iavf_pdev_to_adapter(pdev);
- struct net_device *netdev = adapter->netdev;
struct iavf_fdir_fltr *fdir, *fdirtmp;
struct iavf_vlan_filter *vlf, *vlftmp;
+ struct iavf_cloud_filter *cf, *cftmp;
struct iavf_adv_rss *rss, *rsstmp;
struct iavf_mac_filter *f, *ftmp;
- struct iavf_cloud_filter *cf, *cftmp;
- struct iavf_hw *hw = &adapter->hw;
+ struct net_device *netdev;
+ struct iavf_hw *hw;
int err;

- /* When reboot/shutdown is in progress no need to do anything
- * as the adapter is already REMOVE state that was set during
- * iavf_shutdown() callback.
- */
- if (adapter->state == __IAVF_REMOVE)
+ netdev = adapter->netdev;
+ hw = &adapter->hw;
+
+ if (test_and_set_bit(__IAVF_IN_REMOVE_TASK, &adapter->crit_section))
return;

- set_bit(__IAVF_IN_REMOVE_TASK, &adapter->crit_section);
/* Wait until port initialization is complete.
* There are flows where register/unregister netdev may race.
*/
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index ae586f8895fc..524913c28f3b 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -7356,6 +7356,7 @@ static int mvpp2_get_sram(struct platform_device *pdev,
struct mvpp2 *priv)
{
struct resource *res;
+ void __iomem *base;

res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
if (!res) {
@@ -7366,9 +7367,12 @@ static int mvpp2_get_sram(struct platform_device *pdev,
return 0;
}

- priv->cm3_base = devm_ioremap_resource(&pdev->dev, res);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);

- return PTR_ERR_OR_ZERO(priv->cm3_base);
+ priv->cm3_base = base;
+ return 0;
}

static int mvpp2_probe(struct platform_device *pdev)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index f001579569a2..66d34699f160 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -441,6 +441,8 @@ static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused)
sprintf(lmac, "LMAC%d", lmac_id);
seq_printf(filp, "%s\t0x%x\t\tNIX%d\t\t%s\t%s\n",
dev_name(&pdev->dev), pcifunc, blkid, cgx, lmac);
+
+ pci_dev_put(pdev);
}
return 0;
}
@@ -2127,6 +2129,7 @@ static int cgx_print_dmac_flt(struct seq_file *s, int lmac_id)
}
}

+ pci_dev_put(pdev);
return 0;
}

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 603361c94786..09892703cfd4 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -4832,6 +4832,8 @@ static int nix_setup_ipolicers(struct rvu *rvu,
ipolicer->ref_count = devm_kcalloc(rvu->dev,
ipolicer->band_prof.max,
sizeof(u16), GFP_KERNEL);
+ if (!ipolicer->ref_count)
+ return -ENOMEM;
}

/* Set policer timeunit to 2us ie (19 + 1) * 100 nsec = 2us */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c
index b04fb226f708..ae50d56258ec 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c
@@ -62,15 +62,18 @@ int rvu_sdp_init(struct rvu *rvu)
pfvf->sdp_info = devm_kzalloc(rvu->dev,
sizeof(struct sdp_node_info),
GFP_KERNEL);
- if (!pfvf->sdp_info)
+ if (!pfvf->sdp_info) {
+ pci_dev_put(pdev);
return -ENOMEM;
+ }

dev_info(rvu->dev, "SDP PF number:%d\n", sdp_pf_num[i]);

- put_device(&pdev->dev);
i++;
}

+ pci_dev_put(pdev);
+
return 0;
}

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 8601ef26c260..cc6a5b2f24e3 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2327,8 +2327,10 @@ static int mtk_open(struct net_device *dev)
int err;

err = mtk_start_dma(eth);
- if (err)
+ if (err) {
+ phylink_disconnect_phy(mac->phylink);
return err;
+ }

if (eth->soc->offload_version && mtk_ppe_start(&eth->ppe) == 0)
gdm_config = MTK_GDMA_TO_PPE;
diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c
index b149e601f673..48cfaa7eaf50 100644
--- a/drivers/net/ethernet/mellanox/mlx4/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx4/qp.c
@@ -697,7 +697,8 @@ static int mlx4_create_zones(struct mlx4_dev *dev,
err = mlx4_bitmap_init(*bitmap + k, 1,
MLX4_QP_TABLE_RAW_ETH_SIZE - 1, 0,
0);
- mlx4_bitmap_alloc_range(*bitmap + k, 1, 1, 0);
+ if (!err)
+ mlx4_bitmap_alloc_range(*bitmap + k, 1, 1, 0);
}

if (err)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 98ca5d1ed45d..85190f2f4d50 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -971,6 +971,7 @@ static void cmd_work_handler(struct work_struct *work)
cmd_ent_get(ent);
set_bit(MLX5_CMD_ENT_STATE_PENDING_COMP, &ent->state);

+ cmd_ent_get(ent); /* for the _real_ FW event on completion */
/* Skip sending command to fw if internal error */
if (mlx5_cmd_is_down(dev) || !opcode_allowed(&dev->cmd, ent->op)) {
u8 status = 0;
@@ -984,7 +985,6 @@ static void cmd_work_handler(struct work_struct *work)
return;
}

- cmd_ent_get(ent); /* for the _real_ FW event on completion */
/* ring doorbell after the descriptor is valid */
mlx5_core_dbg(dev, "writing 0x%x to command doorbell\n", 1 << ent->idx);
wmb();
@@ -1598,8 +1598,8 @@ static void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool force
cmd_ent_put(ent); /* timeout work was canceled */

if (!forced || /* Real FW completion */
- pci_channel_offline(dev->pdev) || /* FW is inaccessible */
- dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR)
+ mlx5_cmd_is_down(dev) || /* No real FW completion is expected */
+ !opcode_allowed(cmd, ent->op))
cmd_ent_put(ent);

ent->ts2 = ktime_get_ns();
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
index ea46152816f9..326e0b170e36 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
@@ -638,7 +638,7 @@ static void mlx5_tracer_handle_timestamp_trace(struct mlx5_fw_tracer *tracer,
trace_timestamp = (timestamp_event.timestamp & MASK_52_7) |
(str_frmt->timestamp & MASK_6_0);
else
- trace_timestamp = ((timestamp_event.timestamp & MASK_52_7) - 1) |
+ trace_timestamp = ((timestamp_event.timestamp - 1) & MASK_52_7) |
(str_frmt->timestamp & MASK_6_0);

mlx5_tracer_print_trace(str_frmt, dev, trace_timestamp);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index d092261e96c3..19c11d33f4b6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1608,7 +1608,8 @@ static pci_ers_result_t mlx5_pci_err_detected(struct pci_dev *pdev,
res = state == pci_channel_io_perm_failure ?
PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;

- mlx5_pci_trace(dev, "Exit, result = %d, %s\n", res, result2str(res));
+ mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Exit, result = %d, %s\n",
+ __func__, dev->state, dev->pci_status, res, result2str(res));
return res;
}

@@ -1647,7 +1648,8 @@ static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev)
struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
int err;

- mlx5_pci_trace(dev, "Enter\n");
+ mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Enter\n",
+ __func__, dev->state, dev->pci_status);

err = mlx5_pci_enable_device(dev);
if (err) {
@@ -1669,7 +1671,8 @@ static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev)

res = PCI_ERS_RESULT_RECOVERED;
out:
- mlx5_pci_trace(dev, "Exit, err = %d, result = %d, %s\n", err, res, result2str(res));
+ mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Exit, err = %d, result = %d, %s\n",
+ __func__, dev->state, dev->pci_status, err, res, result2str(res));
return res;
}

diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c b/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
index cb68eaaac881..5c7b21ce64ed 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_netdev.c
@@ -83,7 +83,7 @@ static int sparx5_port_open(struct net_device *ndev)
err = phylink_of_phy_connect(port->phylink, port->of_node, 0);
if (err) {
netdev_err(ndev, "Could not attach to PHY\n");
- return err;
+ goto err_connect;
}

phylink_start(port->phylink);
@@ -95,10 +95,20 @@ static int sparx5_port_open(struct net_device *ndev)
err = sparx5_serdes_set(port->sparx5, port, &port->conf);
else
err = phy_power_on(port->serdes);
- if (err)
+ if (err) {
netdev_err(ndev, "%s failed\n", __func__);
+ goto out_power;
+ }
}

+ return 0;
+
+out_power:
+ phylink_stop(port->phylink);
+ phylink_disconnect_phy(port->phylink);
+err_connect:
+ sparx5_port_enable(port, false);
+
return err;
}

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
index bea978df7713..1647b6b180cc 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
@@ -363,7 +363,7 @@ int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)
return ret;

attrs.split = eth_port.is_split;
- attrs.splittable = !attrs.split;
+ attrs.splittable = eth_port.port_lanes > 1 && !attrs.split;
attrs.lanes = eth_port.port_lanes;
attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
attrs.phys.port_number = eth_port.label_port;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index 865865adfefc..d295942968f3 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -1219,6 +1219,9 @@ nfp_port_get_module_info(struct net_device *netdev,
u8 data;

port = nfp_port_from_netdev(netdev);
+ if (!port)
+ return -EOPNOTSUPP;
+
/* update port state to get latest interface */
set_bit(NFP_PORT_CHANGED, &port->flags);
eth_port = nfp_port_get_eth_port(port);
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index ec3e558f890e..d555b4cc6049 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -1148,6 +1148,7 @@ static void pch_gbe_tx_queue(struct pch_gbe_adapter *adapter,
buffer_info->dma = 0;
buffer_info->time_stamp = 0;
tx_ring->next_to_use = ring_num;
+ dev_kfree_skb_any(skb);
return;
}
buffer_info->mapped = true;
@@ -2464,6 +2465,7 @@ static void pch_gbe_remove(struct pci_dev *pdev)
unregister_netdev(netdev);

pch_gbe_phy_hw_reset(&adapter->hw);
+ pci_dev_put(adapter->ptp_pdev);

free_netdev(netdev);
}
@@ -2539,7 +2541,7 @@ static int pch_gbe_probe(struct pci_dev *pdev,
/* setup the private structure */
ret = pch_gbe_sw_init(adapter);
if (ret)
- goto err_free_netdev;
+ goto err_put_dev;

/* Initialize PHY */
ret = pch_gbe_init_phy(adapter);
@@ -2597,6 +2599,8 @@ static int pch_gbe_probe(struct pci_dev *pdev,

err_free_adapter:
pch_gbe_phy_hw_reset(&adapter->hw);
+err_put_dev:
+ pci_dev_put(adapter->ptp_pdev);
err_free_netdev:
free_netdev(netdev);
return ret;
diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index 40d14d80f6f1..29837e533cee 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -2469,6 +2469,7 @@ static netdev_tx_t ql3xxx_send(struct sk_buff *skb,
skb_shinfo(skb)->nr_frags);
if (tx_cb->seg_count == -1) {
netdev_err(ndev, "%s: invalid segment count!\n", __func__);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}

diff --git a/drivers/net/ethernet/sfc/ef100_netdev.c b/drivers/net/ethernet/sfc/ef100_netdev.c
index 67fe44db6b61..63a44ee763be 100644
--- a/drivers/net/ethernet/sfc/ef100_netdev.c
+++ b/drivers/net/ethernet/sfc/ef100_netdev.c
@@ -200,6 +200,7 @@ static netdev_tx_t ef100_hard_start_xmit(struct sk_buff *skb,
skb->len, skb->data_len, channel->channel);
if (!efx->n_channels || !efx->n_tx_channels || !channel) {
netif_stop_queue(net_dev);
+ dev_kfree_skb_any(skb);
goto err;
}

diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 4811bd1f3d74..aa9d0dfeda5a 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -2644,11 +2644,6 @@ static int macsec_upd_offload(struct sk_buff *skb, struct genl_info *info)
if (ret)
goto rollback;

- /* Force features update, since they are different for SW MACSec and
- * HW offloading cases.
- */
- netdev_update_features(dev);
-
rtnl_unlock();
return 0;

@@ -3416,16 +3411,9 @@ static netdev_tx_t macsec_start_xmit(struct sk_buff *skb,
return ret;
}

-#define SW_MACSEC_FEATURES \
+#define MACSEC_FEATURES \
(NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST)

-/* If h/w offloading is enabled, use real device features save for
- * VLAN_FEATURES - they require additional ops
- * HW_MACSEC - no reason to report it
- */
-#define REAL_DEV_FEATURES(dev) \
- ((dev)->features & ~(NETIF_F_VLAN_FEATURES | NETIF_F_HW_MACSEC))
-
static int macsec_dev_init(struct net_device *dev)
{
struct macsec_dev *macsec = macsec_priv(dev);
@@ -3442,12 +3430,8 @@ static int macsec_dev_init(struct net_device *dev)
return err;
}

- if (macsec_is_offloaded(macsec)) {
- dev->features = REAL_DEV_FEATURES(real_dev);
- } else {
- dev->features = real_dev->features & SW_MACSEC_FEATURES;
- dev->features |= NETIF_F_LLTX | NETIF_F_GSO_SOFTWARE;
- }
+ dev->features = real_dev->features & MACSEC_FEATURES;
+ dev->features |= NETIF_F_LLTX | NETIF_F_GSO_SOFTWARE;

dev->needed_headroom = real_dev->needed_headroom +
MACSEC_NEEDED_HEADROOM;
@@ -3476,10 +3460,7 @@ static netdev_features_t macsec_fix_features(struct net_device *dev,
struct macsec_dev *macsec = macsec_priv(dev);
struct net_device *real_dev = macsec->real_dev;

- if (macsec_is_offloaded(macsec))
- return REAL_DEV_FEATURES(real_dev);
-
- features &= (real_dev->features & SW_MACSEC_FEATURES) |
+ features &= (real_dev->features & MACSEC_FEATURES) |
NETIF_F_GSO_SOFTWARE | NETIF_F_SOFT_FEATURES;
features |= NETIF_F_LLTX;

@@ -3827,7 +3808,6 @@ static int macsec_changelink(struct net_device *dev, struct nlattr *tb[],
if (macsec_is_offloaded(macsec)) {
const struct macsec_ops *ops;
struct macsec_context ctx;
- int ret;

ops = macsec_get_ops(netdev_priv(dev), &ctx);
if (!ops) {
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 6bf5c75f519d..d886f903e428 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1353,6 +1353,7 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */
{QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1031, 3)}, /* Telit LE910C1-EUX */
+ {QMI_QUIRK_SET_DTR(0x1bc7, 0x103a, 0)}, /* Telit LE910C4-WWX */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1050, 2)}, /* Telit FN980 */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1060, 2)}, /* Telit LN920 */
diff --git a/drivers/net/wireless/ath/ath11k/qmi.h b/drivers/net/wireless/ath/ath11k/qmi.h
index 3d5930330703..25940b683ea4 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.h
+++ b/drivers/net/wireless/ath/ath11k/qmi.h
@@ -27,7 +27,7 @@
#define ATH11K_QMI_WLANFW_MAX_NUM_MEM_SEG_V01 52
#define ATH11K_QMI_CALDB_SIZE 0x480000
#define ATH11K_QMI_BDF_EXT_STR_LENGTH 0x20
-#define ATH11K_QMI_FW_MEM_REQ_SEGMENT_CNT 3
+#define ATH11K_QMI_FW_MEM_REQ_SEGMENT_CNT 5

#define QMI_WLFW_REQUEST_MEM_IND_V01 0x0035
#define QMI_WLFW_FW_MEM_READY_IND_V01 0x0037
diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c
index 65dd8cff1b01..fc19ecbc4c08 100644
--- a/drivers/net/wireless/cisco/airo.c
+++ b/drivers/net/wireless/cisco/airo.c
@@ -5233,7 +5233,7 @@ static int get_wep_tx_idx(struct airo_info *ai)
return -1;
}

-static int set_wep_key(struct airo_info *ai, u16 index, const char *key,
+static int set_wep_key(struct airo_info *ai, u16 index, const u8 *key,
u16 keylen, int perm, int lock)
{
static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
@@ -5284,7 +5284,7 @@ static void proc_wepkey_on_close(struct inode *inode, struct file *file)
struct net_device *dev = PDE_DATA(inode);
struct airo_info *ai = dev->ml_priv;
int i, rc;
- char key[16];
+ u8 key[16];
u16 index = 0;
int j = 0;

@@ -5312,12 +5312,22 @@ static void proc_wepkey_on_close(struct inode *inode, struct file *file)
}

for (i = 0; i < 16*3 && data->wbuffer[i+j]; i++) {
+ int val;
+
+ if (i % 3 == 2)
+ continue;
+
+ val = hex_to_bin(data->wbuffer[i+j]);
+ if (val < 0) {
+ airo_print_err(ai->dev->name, "WebKey passed invalid key hex");
+ return;
+ }
switch(i%3) {
case 0:
- key[i/3] = hex_to_bin(data->wbuffer[i+j])<<4;
+ key[i/3] = (u8)val << 4;
break;
case 1:
- key[i/3] |= hex_to_bin(data->wbuffer[i+j]);
+ key[i/3] |= (u8)val;
break;
}
}
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index b228567b2a73..c3c3b5aa87b0 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -845,6 +845,7 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
struct sk_buff *skb;
struct ieee80211_hdr *hdr;
+ struct ieee80211_tx_info *cb;

if (!vp->assoc)
return;
@@ -866,6 +867,10 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
memcpy(hdr->addr2, mac, ETH_ALEN);
memcpy(hdr->addr3, vp->bssid, ETH_ALEN);

+ cb = IEEE80211_SKB_CB(skb);
+ cb->control.rates[0].count = 1;
+ cb->control.rates[1].idx = -1;
+
rcu_read_lock();
mac80211_hwsim_tx_frame(data->hw, skb,
rcu_dereference(vif->chanctx_conf)->def.chan);
diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
index 87c14969c75f..1688144d7847 100644
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -939,30 +939,52 @@ static inline void wilc_wfi_cfg_parse_ch_attr(u8 *buf, u32 len, u8 sta_ch)
return;

while (index + sizeof(*e) <= len) {
+ u16 attr_size;
+
e = (struct wilc_attr_entry *)&buf[index];
- if (e->attr_type == IEEE80211_P2P_ATTR_CHANNEL_LIST)
+ attr_size = le16_to_cpu(e->attr_len);
+
+ if (index + sizeof(*e) + attr_size > len)
+ return;
+
+ if (e->attr_type == IEEE80211_P2P_ATTR_CHANNEL_LIST &&
+ attr_size >= (sizeof(struct wilc_attr_ch_list) - sizeof(*e)))
ch_list_idx = index;
- else if (e->attr_type == IEEE80211_P2P_ATTR_OPER_CHANNEL)
+ else if (e->attr_type == IEEE80211_P2P_ATTR_OPER_CHANNEL &&
+ attr_size == (sizeof(struct wilc_attr_oper_ch) - sizeof(*e)))
op_ch_idx = index;
+
if (ch_list_idx && op_ch_idx)
break;
- index += le16_to_cpu(e->attr_len) + sizeof(*e);
+
+ index += sizeof(*e) + attr_size;
}

if (ch_list_idx) {
- u16 attr_size;
- struct wilc_ch_list_elem *e;
- int i;
+ unsigned int i;
+ u16 elem_size;

ch_list = (struct wilc_attr_ch_list *)&buf[ch_list_idx];
- attr_size = le16_to_cpu(ch_list->attr_len);
- for (i = 0; i < attr_size;) {
+ /* the number of bytes following the final 'elem' member */
+ elem_size = le16_to_cpu(ch_list->attr_len) -
+ (sizeof(*ch_list) - sizeof(struct wilc_attr_entry));
+ for (i = 0; i < elem_size;) {
+ struct wilc_ch_list_elem *e;
+
e = (struct wilc_ch_list_elem *)(ch_list->elem + i);
+
+ i += sizeof(*e);
+ if (i > elem_size)
+ break;
+
+ i += e->no_of_channels;
+ if (i > elem_size)
+ break;
+
if (e->op_class == WILC_WLAN_OPERATING_CLASS_2_4GHZ) {
memset(e->ch_list, sta_ch, e->no_of_channels);
break;
}
- i += e->no_of_channels;
}
}

diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c
index a133736a7821..3e5cc947b9b9 100644
--- a/drivers/net/wireless/microchip/wilc1000/hif.c
+++ b/drivers/net/wireless/microchip/wilc1000/hif.c
@@ -467,14 +467,25 @@ void *wilc_parse_join_bss_param(struct cfg80211_bss *bss,

rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, ies->data, ies->len);
if (rsn_ie) {
+ int rsn_ie_len = sizeof(struct element) + rsn_ie[1];
int offset = 8;

- param->mode_802_11i = 2;
- param->rsn_found = true;
/* extract RSN capabilities */
- offset += (rsn_ie[offset] * 4) + 2;
- offset += (rsn_ie[offset] * 4) + 2;
- memcpy(param->rsn_cap, &rsn_ie[offset], 2);
+ if (offset < rsn_ie_len) {
+ /* skip over pairwise suites */
+ offset += (rsn_ie[offset] * 4) + 2;
+
+ if (offset < rsn_ie_len) {
+ /* skip over authentication suites */
+ offset += (rsn_ie[offset] * 4) + 2;
+
+ if (offset + 1 < rsn_ie_len) {
+ param->mode_802_11i = 2;
+ param->rsn_found = true;
+ memcpy(param->rsn_cap, &rsn_ie[offset], 2);
+ }
+ }
+ }
}

if (param->rsn_found) {
diff --git a/drivers/net/wwan/iosm/iosm_ipc_pcie.c b/drivers/net/wwan/iosm/iosm_ipc_pcie.c
index 01df23835be0..8b4222b137d1 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_pcie.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_pcie.c
@@ -249,7 +249,7 @@ static enum ipc_pcie_sleep_state ipc_pcie_read_bios_cfg(struct device *dev)
if (object->integer.value == 3)
sleep_state = IPC_PCIE_D3L2;

- kfree(object);
+ ACPI_FREE(object);

default_ret:
return sleep_state;
diff --git a/drivers/nfc/st-nci/se.c b/drivers/nfc/st-nci/se.c
index 5fd89f72969d..04a2cea6d6b6 100644
--- a/drivers/nfc/st-nci/se.c
+++ b/drivers/nfc/st-nci/se.c
@@ -312,6 +312,8 @@ static int st_nci_hci_connectivity_event_received(struct nci_dev *ndev,
int r = 0;
struct device *dev = &ndev->nfc_dev->dev;
struct nfc_evt_transaction *transaction;
+ u32 aid_len;
+ u8 params_len;

pr_debug("connectivity gate event: %x\n", event);

@@ -325,26 +327,47 @@ static int st_nci_hci_connectivity_event_received(struct nci_dev *ndev,
* Description Tag Length
* AID 81 5 to 16
* PARAMETERS 82 0 to 255
+ *
+ * The key differences are aid storage length is variably sized
+ * in the packet, but fixed in nfc_evt_transaction, and that
+ * the aid_len is u8 in the packet, but u32 in the structure,
+ * and the tags in the packet are not included in
+ * nfc_evt_transaction.
+ *
+ * size(b): 1 1 5-16 1 1 0-255
+ * offset: 0 1 2 aid_len + 2 aid_len + 3 aid_len + 4
+ * mem name: aid_tag(M) aid_len aid params_tag(M) params_len params
+ * example: 0x81 5-16 X 0x82 0-255 X
*/
- if (skb->len < NFC_MIN_AID_LENGTH + 2 &&
- skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)
+ if (skb->len < 2 || skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)
return -EPROTO;

- transaction = devm_kzalloc(dev, skb->len - 2, GFP_KERNEL);
- if (!transaction)
- return -ENOMEM;
+ aid_len = skb->data[1];

- transaction->aid_len = skb->data[1];
- memcpy(transaction->aid, &skb->data[2], transaction->aid_len);
+ if (skb->len < aid_len + 4 ||
+ aid_len > sizeof(transaction->aid))
+ return -EPROTO;

- /* Check next byte is PARAMETERS tag (82) */
- if (skb->data[transaction->aid_len + 2] !=
- NFC_EVT_TRANSACTION_PARAMS_TAG)
+ params_len = skb->data[aid_len + 3];
+
+ /* Verify PARAMETERS tag is (82), and final check that there is
+ * enough space in the packet to read everything.
+ */
+ if (skb->data[aid_len + 2] != NFC_EVT_TRANSACTION_PARAMS_TAG ||
+ skb->len < aid_len + 4 + params_len)
return -EPROTO;

- transaction->params_len = skb->data[transaction->aid_len + 3];
- memcpy(transaction->params, skb->data +
- transaction->aid_len + 4, transaction->params_len);
+ transaction = devm_kzalloc(dev, sizeof(*transaction) +
+ params_len, GFP_KERNEL);
+ if (!transaction)
+ return -ENOMEM;
+
+ transaction->aid_len = aid_len;
+ transaction->params_len = params_len;
+
+ memcpy(transaction->aid, &skb->data[2], aid_len);
+ memcpy(transaction->params, &skb->data[aid_len + 4],
+ params_len);

r = nfc_se_transaction(ndev->nfc_dev, host, transaction);
break;
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index e9f3701dda3f..772bdc6845fb 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3351,6 +3351,10 @@ static const struct pci_device_id nvme_id_table[] = {
{ PCI_DEVICE(0x1cc1, 0x8201), /* ADATA SX8200PNP 512GB */
.driver_data = NVME_QUIRK_NO_DEEPEST_PS |
NVME_QUIRK_IGNORE_DEV_SUBNQN, },
+ { PCI_DEVICE(0x1344, 0x5407), /* Micron Technology Inc NVMe SSD */
+ .driver_data = NVME_QUIRK_IGNORE_DEV_SUBNQN },
+ { PCI_DEVICE(0x1344, 0x6001), /* Micron Nitro NVMe */
+ .driver_data = NVME_QUIRK_BOGUS_NID, },
{ PCI_DEVICE(0x1c5c, 0x1504), /* SK Hynix PC400 */
.driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
{ PCI_DEVICE(0x15b7, 0x2001), /* Sandisk Skyhawk */
@@ -3361,6 +3365,20 @@ static const struct pci_device_id nvme_id_table[] = {
.driver_data = NVME_QUIRK_NO_DEEPEST_PS, },
{ PCI_DEVICE(0x2646, 0x2263), /* KINGSTON A2000 NVMe SSD */
.driver_data = NVME_QUIRK_NO_DEEPEST_PS, },
+ { PCI_DEVICE(0x2646, 0x5018), /* KINGSTON OM8SFP4xxxxP OS21012 NVMe SSD */
+ .driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
+ { PCI_DEVICE(0x2646, 0x5016), /* KINGSTON OM3PGP4xxxxP OS21011 NVMe SSD */
+ .driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
+ { PCI_DEVICE(0x2646, 0x501A), /* KINGSTON OM8PGP4xxxxP OS21005 NVMe SSD */
+ .driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
+ { PCI_DEVICE(0x2646, 0x501B), /* KINGSTON OM8PGP4xxxxQ OS21005 NVMe SSD */
+ .driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
+ { PCI_DEVICE(0x2646, 0x501E), /* KINGSTON OM3PGP4xxxxQ OS21011 NVMe SSD */
+ .driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
+ { PCI_DEVICE(0x1f40, 0x5236), /* Netac Technologies Co. NV7000 NVMe SSD */
+ .driver_data = NVME_QUIRK_BOGUS_NID, },
+ { PCI_DEVICE(0x1e4B, 0x1001), /* MAXIO MAP1001 */
+ .driver_data = NVME_QUIRK_BOGUS_NID, },
{ PCI_DEVICE(0x1e4B, 0x1002), /* MAXIO MAP1002 */
.driver_data = NVME_QUIRK_BOGUS_NID, },
{ PCI_DEVICE(0x1e4B, 0x1202), /* MAXIO MAP1202 */
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index cea30e4f5053..625038057a76 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -1189,6 +1189,7 @@ static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,
const char *page, size_t count)
{
int pos = 0, len;
+ char *val;

if (subsys->subsys_discovered) {
pr_err("Can't set model number. %s is already assigned\n",
@@ -1211,9 +1212,11 @@ static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,
return -EINVAL;
}

- subsys->model_number = kmemdup_nul(page, len, GFP_KERNEL);
- if (!subsys->model_number)
+ val = kmemdup_nul(page, len, GFP_KERNEL);
+ if (!val)
return -ENOMEM;
+ kfree(subsys->model_number);
+ subsys->model_number = val;
return count;
}

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 8c2a73d5428d..82516796a53b 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -564,6 +564,15 @@ static const struct dmi_system_id acer_quirks[] __initconst = {
},
.driver_data = (void *)ACER_CAP_KBD_DOCK,
},
+ {
+ .callback = set_force_caps,
+ .ident = "Acer Aspire Switch V 10 SW5-017",
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
+ },
+ .driver_data = (void *)ACER_CAP_KBD_DOCK,
+ },
{
.callback = set_force_caps,
.ident = "Acer One 10 (S1003)",
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index e14fb5fa7324..f030ea97f126 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1511,6 +1511,8 @@ static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
cpu_to_le32(ports_available));

+ pci_dev_put(xhci_pdev);
+
pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
orig_ports_available, ports_available);
}
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 5a3a3cd89214..1e390dcee561 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -64,6 +64,7 @@ enum hp_wmi_event_ids {
HPWMI_PEAKSHIFT_PERIOD = 0x0F,
HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
HPWMI_SANITIZATION_MODE = 0x17,
+ HPWMI_SMART_EXPERIENCE_APP = 0x21,
};

struct bios_args {
@@ -641,6 +642,8 @@ static void hp_wmi_notify(u32 value, void *context)
break;
case HPWMI_SANITIZATION_MODE:
break;
+ case HPWMI_SMART_EXPERIENCE_APP:
+ break;
default:
pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
break;
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index e7a1299e3776..7c553581e870 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -136,6 +136,7 @@ struct ideapad_private {
bool dytc : 1;
bool fan_mode : 1;
bool fn_lock : 1;
+ bool set_fn_lock_led : 1;
bool hw_rfkill_switch : 1;
bool kbd_bl : 1;
bool touchpad_ctrl_via_ec : 1;
@@ -1467,6 +1468,9 @@ static void ideapad_wmi_notify(u32 value, void *context)
ideapad_input_report(priv, value);
break;
case 208:
+ if (!priv->features.set_fn_lock_led)
+ break;
+
if (!eval_hals(priv->adev->handle, &result)) {
bool state = test_bit(HALS_FNLOCK_STATE_BIT, &result);

@@ -1480,6 +1484,18 @@ static void ideapad_wmi_notify(u32 value, void *context)
}
#endif

+/* On some models we need to call exec_sals(SALS_FNLOCK_ON/OFF) to set the LED */
+static const struct dmi_system_id set_fn_lock_led_list[] = {
+ {
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=212671 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Legion R7000P2020H"),
+ }
+ },
+ {}
+};
+
/*
* Some ideapads have a hardware rfkill switch, but most do not have one.
* Reading VPCCMD_R_RF always results in 0 on models without a hardware rfkill,
@@ -1499,15 +1515,39 @@ static const struct dmi_system_id hw_rfkill_list[] = {
{}
};

+static const struct dmi_system_id no_touchpad_switch_list[] = {
+ {
+ .ident = "Lenovo Yoga 3 Pro 1370",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 3"),
+ },
+ },
+ {
+ .ident = "ZhaoYang K4e-IML",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ZhaoYang K4e-IML"),
+ },
+ },
+ {}
+};
+
static void ideapad_check_features(struct ideapad_private *priv)
{
acpi_handle handle = priv->adev->handle;
unsigned long val;

+ priv->features.set_fn_lock_led = dmi_check_system(set_fn_lock_led_list);
priv->features.hw_rfkill_switch = dmi_check_system(hw_rfkill_list);

/* Most ideapads with ELAN0634 touchpad don't use EC touchpad switch */
- priv->features.touchpad_ctrl_via_ec = !acpi_dev_present("ELAN0634", NULL, -1);
+ if (acpi_dev_present("ELAN0634", NULL, -1))
+ priv->features.touchpad_ctrl_via_ec = 0;
+ else if (dmi_check_system(no_touchpad_switch_list))
+ priv->features.touchpad_ctrl_via_ec = 0;
+ else
+ priv->features.touchpad_ctrl_via_ec = 1;

if (!read_ec_data(handle, VPCCMD_R_FAN, &val))
priv->features.fan_mode = true;
diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c
index d7d6782c40c2..4d1c78635114 100644
--- a/drivers/platform/x86/intel/hid.c
+++ b/drivers/platform/x86/intel/hid.c
@@ -27,6 +27,9 @@ static const struct acpi_device_id intel_hid_ids[] = {
{"INTC1051", 0},
{"INTC1054", 0},
{"INTC1070", 0},
+ {"INTC1076", 0},
+ {"INTC1077", 0},
+ {"INTC1078", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, intel_hid_ids);
diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c
index 659b1073033c..586a5877422b 100644
--- a/drivers/platform/x86/intel/pmt/class.c
+++ b/drivers/platform/x86/intel/pmt/class.c
@@ -9,6 +9,7 @@
*/

#include <linux/kernel.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/pci.h>
@@ -18,6 +19,7 @@
#define PMT_XA_START 0
#define PMT_XA_MAX INT_MAX
#define PMT_XA_LIMIT XA_LIMIT(PMT_XA_START, PMT_XA_MAX)
+#define GUID_SPR_PUNIT 0x9956f43f

/*
* Early implementations of PMT on client platforms have some
@@ -41,6 +43,29 @@ bool intel_pmt_is_early_client_hw(struct device *dev)
}
EXPORT_SYMBOL_GPL(intel_pmt_is_early_client_hw);

+static inline int
+pmt_memcpy64_fromio(void *to, const u64 __iomem *from, size_t count)
+{
+ int i, remain;
+ u64 *buf = to;
+
+ if (!IS_ALIGNED((unsigned long)from, 8))
+ return -EFAULT;
+
+ for (i = 0; i < count/8; i++)
+ buf[i] = readq(&from[i]);
+
+ /* Copy any remaining bytes */
+ remain = count % 8;
+ if (remain) {
+ u64 tmp = readq(&from[i]);
+
+ memcpy(&buf[i], &tmp, remain);
+ }
+
+ return count;
+}
+
/*
* sysfs
*/
@@ -62,7 +87,11 @@ intel_pmt_read(struct file *filp, struct kobject *kobj,
if (count > entry->size - off)
count = entry->size - off;

- memcpy_fromio(buf, entry->base + off, count);
+ if (entry->guid == GUID_SPR_PUNIT)
+ /* PUNIT on SPR only supports aligned 64-bit read */
+ count = pmt_memcpy64_fromio(buf, entry->base + off, count);
+ else
+ memcpy_fromio(buf, entry->base + off, count);

return count;
}
diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index c608078538a7..3d0790263fa7 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -773,6 +773,22 @@ static const struct ts_dmi_data predia_basic_data = {
.properties = predia_basic_props,
};

+static const struct property_entry rca_cambio_w101_v2_props[] = {
+ PROPERTY_ENTRY_U32("touchscreen-min-x", 4),
+ PROPERTY_ENTRY_U32("touchscreen-min-y", 20),
+ PROPERTY_ENTRY_U32("touchscreen-size-x", 1644),
+ PROPERTY_ENTRY_U32("touchscreen-size-y", 874),
+ PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
+ PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-rca-cambio-w101-v2.fw"),
+ PROPERTY_ENTRY_U32("silead,max-fingers", 10),
+ { }
+};
+
+static const struct ts_dmi_data rca_cambio_w101_v2_data = {
+ .acpi_name = "MSSL1680:00",
+ .properties = rca_cambio_w101_v2_props,
+};
+
static const struct property_entry rwc_nanote_p8_props[] = {
PROPERTY_ENTRY_U32("touchscreen-min-y", 46),
PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
@@ -1394,6 +1410,15 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
},
},
+ {
+ /* RCA Cambio W101 v2 */
+ /* https://github.com/onitake/gsl-firmware/discussions/193 */
+ .driver_data = (void *)&rca_cambio_w101_v2_data,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "RCA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "W101SA23T1"),
+ },
+ },
{
/* RWC NANOTE P8 */
.driver_data = (void *)&rwc_nanote_p8_data,
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index aa4d78b02483..221ae807b379 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -5071,6 +5071,7 @@ static void regulator_dev_release(struct device *dev)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);

+ debugfs_remove_recursive(rdev->debugfs);
kfree(rdev->constraints);
of_node_put(rdev->dev.of_node);
kfree(rdev);
@@ -5549,11 +5550,15 @@ regulator_register(const struct regulator_desc *regulator_desc,
mutex_lock(&regulator_list_mutex);
regulator_ena_gpio_free(rdev);
mutex_unlock(&regulator_list_mutex);
+ put_device(&rdev->dev);
+ rdev = NULL;
clean:
if (dangling_of_gpiod)
gpiod_put(config->ena_gpiod);
+ if (rdev && rdev->dev.of_node)
+ of_node_put(rdev->dev.of_node);
+ kfree(rdev);
kfree(config);
- put_device(&rdev->dev);
rinse:
if (dangling_cfg_gpiod)
gpiod_put(cfg->ena_gpiod);
@@ -5582,7 +5587,6 @@ void regulator_unregister(struct regulator_dev *rdev)

mutex_lock(&regulator_list_mutex);

- debugfs_remove_recursive(rdev->debugfs);
WARN_ON(rdev->open_count);
regulator_remove_coupling(rdev);
unset_regulator_supplies(rdev);
diff --git a/drivers/regulator/twl6030-regulator.c b/drivers/regulator/twl6030-regulator.c
index 430265c404d6..7c7e3648ea4b 100644
--- a/drivers/regulator/twl6030-regulator.c
+++ b/drivers/regulator/twl6030-regulator.c
@@ -530,6 +530,7 @@ static const struct twlreg_info TWL6030_INFO_##label = { \
#define TWL6032_ADJUSTABLE_LDO(label, offset) \
static const struct twlreg_info TWL6032_INFO_##label = { \
.base = offset, \
+ .features = TWL6032_SUBCLASS, \
.desc = { \
.name = #label, \
.id = TWL6032_REG_##label, \
@@ -562,6 +563,7 @@ static const struct twlreg_info TWLFIXED_INFO_##label = { \
#define TWL6032_ADJUSTABLE_SMPS(label, offset) \
static const struct twlreg_info TWLSMPS_INFO_##label = { \
.base = offset, \
+ .features = TWL6032_SUBCLASS, \
.desc = { \
.name = #label, \
.id = TWL6032_REG_##label, \
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index ff7b7d470e96..57dfc92aa756 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -4696,7 +4696,6 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_raw(struct dasd_device *startdev,
struct dasd_device *basedev;
struct req_iterator iter;
struct dasd_ccw_req *cqr;
- unsigned int first_offs;
unsigned int trkcount;
unsigned long *idaws;
unsigned int size;
@@ -4730,7 +4729,6 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_raw(struct dasd_device *startdev,
last_trk = (blk_rq_pos(req) + blk_rq_sectors(req) - 1) /
DASD_RAW_SECTORS_PER_TRACK;
trkcount = last_trk - first_trk + 1;
- first_offs = 0;

if (rq_data_dir(req) == READ)
cmd = DASD_ECKD_CCW_READ_TRACK;
@@ -4774,13 +4772,13 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_raw(struct dasd_device *startdev,

if (use_prefix) {
prefix_LRE(ccw++, data, first_trk, last_trk, cmd, basedev,
- startdev, 1, first_offs + 1, trkcount, 0, 0);
+ startdev, 1, 0, trkcount, 0, 0);
} else {
define_extent(ccw++, data, first_trk, last_trk, cmd, basedev, 0);
ccw[-1].flags |= CCW_FLAG_CC;

data += sizeof(struct DE_eckd_data);
- locate_record_ext(ccw++, data, first_trk, first_offs + 1,
+ locate_record_ext(ccw++, data, first_trk, 0,
trkcount, cmd, basedev, 0, 0);
}

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index b3531065a438..45ef78f388dc 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -708,8 +708,13 @@ static void ibmvfc_init_host(struct ibmvfc_host *vhost)
memset(vhost->async_crq.msgs.async, 0, PAGE_SIZE);
vhost->async_crq.cur = 0;

- list_for_each_entry(tgt, &vhost->targets, queue)
- ibmvfc_del_tgt(tgt);
+ list_for_each_entry(tgt, &vhost->targets, queue) {
+ if (vhost->client_migrated)
+ tgt->need_login = 1;
+ else
+ ibmvfc_del_tgt(tgt);
+ }
+
scsi_block_requests(vhost->host);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT);
vhost->job_step = ibmvfc_npiv_login;
@@ -3235,9 +3240,12 @@ static void ibmvfc_handle_crq(struct ibmvfc_crq *crq, struct ibmvfc_host *vhost,
/* We need to re-setup the interpartition connection */
dev_info(vhost->dev, "Partition migrated, Re-enabling adapter\n");
vhost->client_migrated = 1;
+
+ scsi_block_requests(vhost->host);
ibmvfc_purge_requests(vhost, DID_REQUEUE);
- ibmvfc_link_down(vhost, IBMVFC_LINK_DOWN);
+ ibmvfc_set_host_state(vhost, IBMVFC_LINK_DOWN);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_REENABLE);
+ wake_up(&vhost->work_wait_q);
} else if (crq->format == IBMVFC_PARTNER_FAILED || crq->format == IBMVFC_PARTNER_DEREGISTER) {
dev_err(vhost->dev, "Host partner adapter deregistered or failed (rc=%d)\n", crq->format);
ibmvfc_purge_requests(vhost, DID_ERROR);
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 2b5e249f5d5b..0b16061d8da8 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1879,6 +1879,13 @@ static int resp_readcap16(struct scsi_cmnd *scp,
arr[14] |= 0x40;
}

+ /*
+ * Since the scsi_debug READ CAPACITY implementation always reports the
+ * total disk capacity, set RC BASIS = 1 for host-managed ZBC devices.
+ */
+ if (devip->zmodel == BLK_ZONED_HM)
+ arr[12] |= 1 << 4;
+
arr[15] = sdebug_lowest_aligned & 0xff;

if (have_dif_prot) {
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index f46ae5391758..cc39cbef9d7f 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -232,7 +232,7 @@ iscsi_create_endpoint(int dd_size)
dev_set_name(&ep->dev, "ep-%d", id);
err = device_register(&ep->dev);
if (err)
- goto free_id;
+ goto put_dev;

err = sysfs_create_group(&ep->dev.kobj, &iscsi_endpoint_group);
if (err)
@@ -246,10 +246,12 @@ iscsi_create_endpoint(int dd_size)
device_unregister(&ep->dev);
return NULL;

-free_id:
+put_dev:
mutex_lock(&iscsi_ep_idr_mutex);
idr_remove(&iscsi_ep_idr, id);
mutex_unlock(&iscsi_ep_idr_mutex);
+ put_device(&ep->dev);
+ return NULL;
free_ep:
kfree(ep);
return NULL;
@@ -767,7 +769,7 @@ iscsi_create_iface(struct Scsi_Host *shost, struct iscsi_transport *transport,

err = device_register(&iface->dev);
if (err)
- goto free_iface;
+ goto put_dev;

err = sysfs_create_group(&iface->dev.kobj, &iscsi_iface_group);
if (err)
@@ -781,9 +783,8 @@ iscsi_create_iface(struct Scsi_Host *shost, struct iscsi_transport *transport,
device_unregister(&iface->dev);
return NULL;

-free_iface:
- put_device(iface->dev.parent);
- kfree(iface);
+put_dev:
+ put_device(&iface->dev);
return NULL;
}
EXPORT_SYMBOL_GPL(iscsi_create_iface);
@@ -1252,15 +1253,15 @@ iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index,

err = device_register(&fnode_sess->dev);
if (err)
- goto free_fnode_sess;
+ goto put_dev;

if (dd_size)
fnode_sess->dd_data = &fnode_sess[1];

return fnode_sess;

-free_fnode_sess:
- kfree(fnode_sess);
+put_dev:
+ put_device(&fnode_sess->dev);
return NULL;
}
EXPORT_SYMBOL_GPL(iscsi_create_flashnode_sess);
@@ -1300,15 +1301,15 @@ iscsi_create_flashnode_conn(struct Scsi_Host *shost,

err = device_register(&fnode_conn->dev);
if (err)
- goto free_fnode_conn;
+ goto put_dev;

if (dd_size)
fnode_conn->dd_data = &fnode_conn[1];

return fnode_conn;

-free_fnode_conn:
- kfree(fnode_conn);
+put_dev:
+ put_device(&fnode_conn->dev);
return NULL;
}
EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn);
@@ -4838,7 +4839,7 @@ iscsi_register_transport(struct iscsi_transport *tt)
dev_set_name(&priv->dev, "%s", tt->name);
err = device_register(&priv->dev);
if (err)
- goto free_priv;
+ goto put_dev;

err = sysfs_create_group(&priv->dev.kobj, &iscsi_transport_group);
if (err)
@@ -4873,8 +4874,8 @@ iscsi_register_transport(struct iscsi_transport *tt)
unregister_dev:
device_unregister(&priv->dev);
return NULL;
-free_priv:
- kfree(priv);
+put_dev:
+ put_device(&priv->dev);
return NULL;
}
EXPORT_SYMBOL_GPL(iscsi_register_transport);
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 3d03e1ca5820..6110dfd903f7 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -344,16 +344,21 @@ enum storvsc_request_type {
};

/*
- * SRB status codes and masks; a subset of the codes used here.
+ * SRB status codes and masks. In the 8-bit field, the two high order bits
+ * are flags, while the remaining 6 bits are an integer status code. The
+ * definitions here include only the subset of the integer status codes that
+ * are tested for in this driver.
*/
-
#define SRB_STATUS_AUTOSENSE_VALID 0x80
#define SRB_STATUS_QUEUE_FROZEN 0x40
-#define SRB_STATUS_INVALID_LUN 0x20
-#define SRB_STATUS_SUCCESS 0x01
-#define SRB_STATUS_ABORTED 0x02
-#define SRB_STATUS_ERROR 0x04
-#define SRB_STATUS_DATA_OVERRUN 0x12
+
+/* SRB status integer codes */
+#define SRB_STATUS_SUCCESS 0x01
+#define SRB_STATUS_ABORTED 0x02
+#define SRB_STATUS_ERROR 0x04
+#define SRB_STATUS_INVALID_REQUEST 0x06
+#define SRB_STATUS_DATA_OVERRUN 0x12
+#define SRB_STATUS_INVALID_LUN 0x20

#define SRB_STATUS(status) \
(status & ~(SRB_STATUS_AUTOSENSE_VALID | SRB_STATUS_QUEUE_FROZEN))
@@ -1032,38 +1037,25 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
void (*process_err_fn)(struct work_struct *work);
struct hv_host_device *host_dev = shost_priv(host);

- /*
- * In some situations, Hyper-V sets multiple bits in the
- * srb_status, such as ABORTED and ERROR. So process them
- * individually, with the most specific bits first.
- */
-
- if (vm_srb->srb_status & SRB_STATUS_INVALID_LUN) {
- set_host_byte(scmnd, DID_NO_CONNECT);
- process_err_fn = storvsc_remove_lun;
- goto do_work;
- }
+ switch (SRB_STATUS(vm_srb->srb_status)) {
+ case SRB_STATUS_ERROR:
+ case SRB_STATUS_ABORTED:
+ case SRB_STATUS_INVALID_REQUEST:
+ if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID) {
+ /* Check for capacity change */
+ if ((asc == 0x2a) && (ascq == 0x9)) {
+ process_err_fn = storvsc_device_scan;
+ /* Retry the I/O that triggered this. */
+ set_host_byte(scmnd, DID_REQUEUE);
+ goto do_work;
+ }

- if (vm_srb->srb_status & SRB_STATUS_ABORTED) {
- if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID &&
- /* Capacity data has changed */
- (asc == 0x2a) && (ascq == 0x9)) {
- process_err_fn = storvsc_device_scan;
/*
- * Retry the I/O that triggered this.
+ * Otherwise, let upper layer deal with the
+ * error when sense message is present
*/
- set_host_byte(scmnd, DID_REQUEUE);
- goto do_work;
- }
- }
-
- if (vm_srb->srb_status & SRB_STATUS_ERROR) {
- /*
- * Let upper layer deal with error when
- * sense message is present.
- */
- if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID)
return;
+ }

/*
* If there is an error; offline the device since all
@@ -1086,6 +1078,13 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
default:
set_host_byte(scmnd, DID_ERROR);
}
+ return;
+
+ case SRB_STATUS_INVALID_LUN:
+ set_host_byte(scmnd, DID_NO_CONNECT);
+ process_err_fn = storvsc_remove_lun;
+ goto do_work;
+
}
return;

diff --git a/drivers/spi/spi-dw-dma.c b/drivers/spi/spi-dw-dma.c
index a09831c62192..32ac8f9068e8 100644
--- a/drivers/spi/spi-dw-dma.c
+++ b/drivers/spi/spi-dw-dma.c
@@ -127,12 +127,15 @@ static int dw_spi_dma_init_mfld(struct device *dev, struct dw_spi *dws)

dw_spi_dma_sg_burst_init(dws);

+ pci_dev_put(dma_dev);
+
return 0;

free_rxchan:
dma_release_channel(dws->rxchan);
dws->rxchan = NULL;
err_exit:
+ pci_dev_put(dma_dev);
return -EBUSY;
}

diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index 96a73f9e2677..3c6f201b5dd8 100644
--- a/drivers/spi/spi-stm32.c
+++ b/drivers/spi/spi-stm32.c
@@ -434,7 +434,7 @@ static int stm32_spi_prepare_mbr(struct stm32_spi *spi, u32 speed_hz,
u32 div, mbrdiv;

/* Ensure spi->clk_rate is even */
- div = DIV_ROUND_UP(spi->clk_rate & ~0x1, speed_hz);
+ div = DIV_ROUND_CLOSEST(spi->clk_rate & ~0x1, speed_hz);

/*
* SPI framework set xfer->speed_hz to master->max_speed_hz if
diff --git a/drivers/tee/optee/device.c b/drivers/tee/optee/device.c
index 128a2d2a50a1..a74d82e230e3 100644
--- a/drivers/tee/optee/device.c
+++ b/drivers/tee/optee/device.c
@@ -80,7 +80,7 @@ static int optee_register_device(const uuid_t *device_uuid)
rc = device_register(&optee_device->dev);
if (rc) {
pr_err("device registration failed, err: %d\n", rc);
- kfree(optee_device);
+ put_device(&optee_device->dev);
}

return rc;
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index c3348d5af922..f3bfaa1a794b 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1016,6 +1016,7 @@ int serial8250_register_8250_port(const struct uart_8250_port *up)
uart->port.throttle = up->port.throttle;
uart->port.unthrottle = up->port.unthrottle;
uart->port.rs485_config = up->port.rs485_config;
+ uart->port.rs485_supported = up->port.rs485_supported;
uart->port.rs485 = up->port.rs485;
uart->rs485_start_tx = up->rs485_start_tx;
uart->rs485_stop_tx = up->rs485_stop_tx;
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 469fdb91830e..078a7028ee5a 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -293,6 +293,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up)
{
struct omap8250_priv *priv = up->port.private_data;
struct uart_8250_dma *dma = up->dma;
+ u8 mcr = serial8250_in_MCR(up);

if (dma && dma->tx_running) {
/*
@@ -309,7 +310,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up)
serial_out(up, UART_EFR, UART_EFR_ECB);

serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
- serial8250_out_MCR(up, UART_MCR_TCRTLR);
+ serial8250_out_MCR(up, mcr | UART_MCR_TCRTLR);
serial_out(up, UART_FCR, up->fcr);

omap8250_update_scr(up, priv);
@@ -325,7 +326,8 @@ static void omap8250_restore_regs(struct uart_8250_port *up)
serial_out(up, UART_LCR, 0);

/* drop TCR + TLR access, we setup XON/XOFF later */
- serial8250_out_MCR(up, up->mcr);
+ serial8250_out_MCR(up, mcr);
+
serial_out(up, UART_IER, up->ier);

serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
@@ -684,7 +686,6 @@ static int omap_8250_startup(struct uart_port *port)

pm_runtime_get_sync(port->dev);

- up->mcr = 0;
serial_out(up, UART_FCR, UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);

serial_out(up, UART_LCR, UART_LCR_WLEN8);
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 44ed4285e1ef..595430aedc0d 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -12,6 +12,7 @@
#include <linux/dmaengine.h>
#include <linux/dmapool.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -395,33 +396,6 @@ static unsigned int lpuart_get_baud_clk_rate(struct lpuart_port *sport)
#define lpuart_enable_clks(x) __lpuart_enable_clks(x, true)
#define lpuart_disable_clks(x) __lpuart_enable_clks(x, false)

-static int lpuart_global_reset(struct lpuart_port *sport)
-{
- struct uart_port *port = &sport->port;
- void __iomem *global_addr;
- int ret;
-
- if (uart_console(port))
- return 0;
-
- ret = clk_prepare_enable(sport->ipg_clk);
- if (ret) {
- dev_err(sport->port.dev, "failed to enable uart ipg clk: %d\n", ret);
- return ret;
- }
-
- if (is_imx7ulp_lpuart(sport) || is_imx8qxp_lpuart(sport)) {
- global_addr = port->membase + UART_GLOBAL - IMX_REG_OFF;
- writel(UART_GLOBAL_RST, global_addr);
- usleep_range(GLOBAL_RST_MIN_US, GLOBAL_RST_MAX_US);
- writel(0, global_addr);
- usleep_range(GLOBAL_RST_MIN_US, GLOBAL_RST_MAX_US);
- }
-
- clk_disable_unprepare(sport->ipg_clk);
- return 0;
-}
-
static void lpuart_stop_tx(struct uart_port *port)
{
unsigned char temp;
@@ -2644,6 +2618,59 @@ static struct uart_driver lpuart_reg = {
.cons = LPUART_CONSOLE,
};

+static const struct serial_rs485 lpuart_rs485_supported = {
+ .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND,
+ /* delay_rts_* and RX_DURING_TX are not supported */
+};
+
+static int lpuart_global_reset(struct lpuart_port *sport)
+{
+ struct uart_port *port = &sport->port;
+ void __iomem *global_addr;
+ unsigned long ctrl, bd;
+ unsigned int val = 0;
+ int ret;
+
+ ret = clk_prepare_enable(sport->ipg_clk);
+ if (ret) {
+ dev_err(sport->port.dev, "failed to enable uart ipg clk: %d\n", ret);
+ return ret;
+ }
+
+ if (is_imx7ulp_lpuart(sport) || is_imx8qxp_lpuart(sport)) {
+ /*
+ * If the transmitter is used by earlycon, wait for transmit engine to
+ * complete and then reset.
+ */
+ ctrl = lpuart32_read(port, UARTCTRL);
+ if (ctrl & UARTCTRL_TE) {
+ bd = lpuart32_read(&sport->port, UARTBAUD);
+ if (read_poll_timeout(lpuart32_tx_empty, val, val, 1, 100000, false,
+ port)) {
+ dev_warn(sport->port.dev,
+ "timeout waiting for transmit engine to complete\n");
+ clk_disable_unprepare(sport->ipg_clk);
+ return 0;
+ }
+ }
+
+ global_addr = port->membase + UART_GLOBAL - IMX_REG_OFF;
+ writel(UART_GLOBAL_RST, global_addr);
+ usleep_range(GLOBAL_RST_MIN_US, GLOBAL_RST_MAX_US);
+ writel(0, global_addr);
+ usleep_range(GLOBAL_RST_MIN_US, GLOBAL_RST_MAX_US);
+
+ /* Recover the transmitter for earlycon. */
+ if (ctrl & UARTCTRL_TE) {
+ lpuart32_write(port, bd, UARTBAUD);
+ lpuart32_write(port, ctrl, UARTCTRL);
+ }
+ }
+
+ clk_disable_unprepare(sport->ipg_clk);
+ return 0;
+}
+
static int lpuart_probe(struct platform_device *pdev)
{
const struct lpuart_soc_data *sdata = of_device_get_match_data(&pdev->dev);
@@ -2683,6 +2710,7 @@ static int lpuart_probe(struct platform_device *pdev)
sport->port.rs485_config = lpuart32_config_rs485;
else
sport->port.rs485_config = lpuart_config_rs485;
+ sport->port.rs485_supported = &lpuart_rs485_supported;

sport->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
if (IS_ERR(sport->ipg_clk)) {
diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-gadget.c
index e85bf768c66d..068ccbd144b2 100644
--- a/drivers/usb/cdns3/cdnsp-gadget.c
+++ b/drivers/usb/cdns3/cdnsp-gadget.c
@@ -600,11 +600,11 @@ int cdnsp_halt_endpoint(struct cdnsp_device *pdev,

trace_cdnsp_ep_halt(value ? "Set" : "Clear");

- if (value) {
- ret = cdnsp_cmd_stop_ep(pdev, pep);
- if (ret)
- return ret;
+ ret = cdnsp_cmd_stop_ep(pdev, pep);
+ if (ret)
+ return ret;

+ if (value) {
if (GET_EP_CTX_STATE(pep->out_ctx) == EP_STATE_STOPPED) {
cdnsp_queue_halt_endpoint(pdev, pep->idx);
cdnsp_ring_cmd_db(pdev);
@@ -613,10 +613,6 @@ int cdnsp_halt_endpoint(struct cdnsp_device *pdev,

pep->ep_state |= EP_HALTED;
} else {
- /*
- * In device mode driver can call reset endpoint command
- * from any endpoint state.
- */
cdnsp_queue_reset_ep(pdev, pep->idx);
cdnsp_ring_cmd_db(pdev);
ret = cdnsp_wait_for_cmd_compl(pdev);
diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c
index 794e413800ae..2f29431f612e 100644
--- a/drivers/usb/cdns3/cdnsp-ring.c
+++ b/drivers/usb/cdns3/cdnsp-ring.c
@@ -1763,10 +1763,15 @@ static u32 cdnsp_td_remainder(struct cdnsp_device *pdev,
int trb_buff_len,
unsigned int td_total_len,
struct cdnsp_request *preq,
- bool more_trbs_coming)
+ bool more_trbs_coming,
+ bool zlp)
{
u32 maxp, total_packet_count;

+ /* Before ZLP driver needs set TD_SIZE = 1. */
+ if (zlp)
+ return 1;
+
/* One TRB with a zero-length data packet. */
if (!more_trbs_coming || (transferred == 0 && trb_buff_len == 0) ||
trb_buff_len == td_total_len)
@@ -1960,7 +1965,8 @@ int cdnsp_queue_bulk_tx(struct cdnsp_device *pdev, struct cdnsp_request *preq)
/* Set the TRB length, TD size, and interrupter fields. */
remainder = cdnsp_td_remainder(pdev, enqd_len, trb_buff_len,
full_len, preq,
- more_trbs_coming);
+ more_trbs_coming,
+ zero_len_trb);

length_field = TRB_LEN(trb_buff_len) | TRB_TD_SIZE(remainder) |
TRB_INTR_TARGET(0);
@@ -2025,7 +2031,7 @@ int cdnsp_queue_ctrl_tx(struct cdnsp_device *pdev, struct cdnsp_request *preq)

if (preq->request.length > 0) {
remainder = cdnsp_td_remainder(pdev, 0, preq->request.length,
- preq->request.length, preq, 1);
+ preq->request.length, preq, 1, 0);

length_field = TRB_LEN(preq->request.length) |
TRB_TD_SIZE(remainder) | TRB_INTR_TARGET(0);
@@ -2076,7 +2082,8 @@ int cdnsp_cmd_stop_ep(struct cdnsp_device *pdev, struct cdnsp_ep *pep)
u32 ep_state = GET_EP_CTX_STATE(pep->out_ctx);
int ret = 0;

- if (ep_state == EP_STATE_STOPPED || ep_state == EP_STATE_DISABLED) {
+ if (ep_state == EP_STATE_STOPPED || ep_state == EP_STATE_DISABLED ||
+ ep_state == EP_STATE_HALTED) {
trace_cdnsp_ep_stopped_or_disabled(pep->out_ctx);
goto ep_stopped;
}
@@ -2225,7 +2232,7 @@ static int cdnsp_queue_isoc_tx(struct cdnsp_device *pdev,
/* Set the TRB length, TD size, & interrupter fields. */
remainder = cdnsp_td_remainder(pdev, running_total,
trb_buff_len, td_len, preq,
- more_trbs_coming);
+ more_trbs_coming, 0);

length_field = TRB_LEN(trb_buff_len) | TRB_INTR_TARGET(0);

diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 0ecf20eeceee..4be6a873bd07 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -37,15 +37,6 @@ struct dwc3_exynos {
struct regulator *vdd10;
};

-static int dwc3_exynos_remove_child(struct device *dev, void *unused)
-{
- struct platform_device *pdev = to_platform_device(dev);
-
- platform_device_unregister(pdev);
-
- return 0;
-}
-
static int dwc3_exynos_probe(struct platform_device *pdev)
{
struct dwc3_exynos *exynos;
@@ -142,7 +133,7 @@ static int dwc3_exynos_remove(struct platform_device *pdev)
struct dwc3_exynos *exynos = platform_get_drvdata(pdev);
int i;

- device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child);
+ of_platform_depopulate(&pdev->dev);

for (i = exynos->num_clks - 1; i >= 0; i--)
clk_disable_unprepare(exynos->clks[i]);
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index c38418b4df90..dfa1d9eedde1 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -951,7 +951,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, unsigned int action)
return 0;
}

-static void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep)
+static void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep, int status)
{
struct dwc3_request *req;

@@ -961,19 +961,19 @@ static void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep)
while (!list_empty(&dep->started_list)) {
req = next_request(&dep->started_list);

- dwc3_gadget_giveback(dep, req, -ESHUTDOWN);
+ dwc3_gadget_giveback(dep, req, status);
}

while (!list_empty(&dep->pending_list)) {
req = next_request(&dep->pending_list);

- dwc3_gadget_giveback(dep, req, -ESHUTDOWN);
+ dwc3_gadget_giveback(dep, req, status);
}

while (!list_empty(&dep->cancelled_list)) {
req = next_request(&dep->cancelled_list);

- dwc3_gadget_giveback(dep, req, -ESHUTDOWN);
+ dwc3_gadget_giveback(dep, req, status);
}
}

@@ -1002,18 +1002,18 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
reg &= ~DWC3_DALEPENA_EP(dep->number);
dwc3_writel(dwc->regs, DWC3_DALEPENA, reg);

+ dwc3_remove_requests(dwc, dep, -ESHUTDOWN);
+
+ dep->stream_capable = false;
+ dep->type = 0;
+ dep->flags &= DWC3_EP_TXFIFO_RESIZED;
+
/* Clear out the ep descriptors for non-ep0 */
if (dep->number > 1) {
dep->endpoint.comp_desc = NULL;
dep->endpoint.desc = NULL;
}

- dwc3_remove_requests(dwc, dep);
-
- dep->stream_capable = false;
- dep->type = 0;
- dep->flags &= DWC3_EP_TXFIFO_RESIZED;
-
return 0;
}

@@ -2288,7 +2288,7 @@ static void dwc3_stop_active_transfers(struct dwc3 *dwc)
if (!dep)
continue;

- dwc3_remove_requests(dwc, dep);
+ dwc3_remove_requests(dwc, dep, -ESHUTDOWN);
}
}

diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c
index 18f0ed8b1f93..6ebd819338ec 100644
--- a/drivers/xen/platform-pci.c
+++ b/drivers/xen/platform-pci.c
@@ -144,7 +144,7 @@ static int platform_pci_probe(struct pci_dev *pdev,
if (ret) {
dev_warn(&pdev->dev, "Unable to set the evtchn callback "
"err=%d\n", ret);
- goto out;
+ goto irq_out;
}
}

@@ -152,13 +152,16 @@ static int platform_pci_probe(struct pci_dev *pdev,
grant_frames = alloc_xen_mmio(PAGE_SIZE * max_nr_gframes);
ret = gnttab_setup_auto_xlat_frames(grant_frames);
if (ret)
- goto out;
+ goto irq_out;
ret = gnttab_init();
if (ret)
goto grant_out;
return 0;
grant_out:
gnttab_free_auto_xlat_frames();
+irq_out:
+ if (!xen_have_vector_callback)
+ free_irq(pdev->irq, pdev);
out:
pci_release_region(pdev, 0);
mem_out:
diff --git a/drivers/xen/xen-pciback/conf_space_capability.c b/drivers/xen/xen-pciback/conf_space_capability.c
index 5e53b4817f16..097316a74126 100644
--- a/drivers/xen/xen-pciback/conf_space_capability.c
+++ b/drivers/xen/xen-pciback/conf_space_capability.c
@@ -190,13 +190,16 @@ static const struct config_field caplist_pm[] = {
};

static struct msi_msix_field_config {
- u16 enable_bit; /* bit for enabling MSI/MSI-X */
- unsigned int int_type; /* interrupt type for exclusiveness check */
+ u16 enable_bit; /* bit for enabling MSI/MSI-X */
+ u16 allowed_bits; /* bits allowed to be changed */
+ unsigned int int_type; /* interrupt type for exclusiveness check */
} msi_field_config = {
.enable_bit = PCI_MSI_FLAGS_ENABLE,
+ .allowed_bits = PCI_MSI_FLAGS_ENABLE,
.int_type = INTERRUPT_TYPE_MSI,
}, msix_field_config = {
.enable_bit = PCI_MSIX_FLAGS_ENABLE,
+ .allowed_bits = PCI_MSIX_FLAGS_ENABLE | PCI_MSIX_FLAGS_MASKALL,
.int_type = INTERRUPT_TYPE_MSIX,
};

@@ -229,7 +232,7 @@ static int msi_msix_flags_write(struct pci_dev *dev, int offset, u16 new_value,
return 0;

if (!dev_data->allow_interrupt_control ||
- (new_value ^ old_value) & ~field_config->enable_bit)
+ (new_value ^ old_value) & ~field_config->allowed_bits)
return PCIBIOS_SET_FAILED;

if (new_value & field_config->enable_bit) {
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index b9dcaae7c8d5..d9ff0697132b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2788,6 +2788,8 @@ static int btrfs_ioctl_get_subvol_info(struct file *file, void __user *argp)
}
}

+ btrfs_free_path(path);
+ path = NULL;
if (copy_to_user(argp, subvol_info, sizeof(*subvol_info)))
ret = -EFAULT;

@@ -2880,6 +2882,8 @@ static int btrfs_ioctl_get_subvol_rootref(struct file *file, void __user *argp)
}

out:
+ btrfs_free_path(path);
+
if (!ret || ret == -EOVERFLOW) {
rootrefs->num_items = found;
/* update min_treeid for next search */
@@ -2891,7 +2895,6 @@ static int btrfs_ioctl_get_subvol_rootref(struct file *file, void __user *argp)
}

kfree(rootrefs);
- btrfs_free_path(path);

return ret;
}
@@ -3891,6 +3894,8 @@ static long btrfs_ioctl_ino_to_path(struct btrfs_root *root, void __user *arg)
ipath->fspath->val[i] = rel_ptr;
}

+ btrfs_free_path(path);
+ path = NULL;
ret = copy_to_user((void __user *)(unsigned long)ipa->fspath,
ipath->fspath, size);
if (ret) {
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 25a6f587852b..1c40e5151321 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -2035,8 +2035,11 @@ int __init btrfs_init_sysfs(void)

#ifdef CONFIG_BTRFS_DEBUG
ret = sysfs_create_group(&btrfs_kset->kobj, &btrfs_debug_feature_attr_group);
- if (ret)
- goto out2;
+ if (ret) {
+ sysfs_unmerge_group(&btrfs_kset->kobj,
+ &btrfs_static_feature_attr_group);
+ goto out_remove_group;
+ }
#endif

return 0;
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 96958ca474bd..dbb75c2995e9 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -114,7 +114,8 @@ static int sb_write_pointer(struct block_device *bdev, struct blk_zone *zones,
super[i] = page_address(page[i]);
}

- if (super[0]->generation > super[1]->generation)
+ if (btrfs_super_generation(super[0]) >
+ btrfs_super_generation(super[1]))
sector = zones[1].start;
else
sector = zones[0].start;
@@ -420,7 +421,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
goto out;
}

- zones = kcalloc(BTRFS_REPORT_NR_ZONES, sizeof(struct blk_zone), GFP_KERNEL);
+ zones = kvcalloc(BTRFS_REPORT_NR_ZONES, sizeof(struct blk_zone), GFP_KERNEL);
if (!zones) {
ret = -ENOMEM;
goto out;
@@ -516,7 +517,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
}

- kfree(zones);
+ kvfree(zones);

switch (bdev_zoned_model(bdev)) {
case BLK_ZONED_HM:
@@ -548,7 +549,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
return 0;

out:
- kfree(zones);
+ kvfree(zones);
out_free_zone_info:
btrfs_destroy_dev_zone_info(device);

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 883bb91ee257..be96fe615bec 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2217,7 +2217,6 @@ static int unsafe_request_wait(struct inode *inode)
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_request *req1 = NULL, *req2 = NULL;
- unsigned int max_sessions;
int ret, err = 0;

spin_lock(&ci->i_unsafe_lock);
@@ -2235,28 +2234,24 @@ static int unsafe_request_wait(struct inode *inode)
}
spin_unlock(&ci->i_unsafe_lock);

- /*
- * The mdsc->max_sessions is unlikely to be changed
- * mostly, here we will retry it by reallocating the
- * sessions array memory to get rid of the mdsc->mutex
- * lock.
- */
-retry:
- max_sessions = mdsc->max_sessions;
-
/*
* Trigger to flush the journal logs in all the relevant MDSes
* manually, or in the worst case we must wait at most 5 seconds
* to wait the journal logs to be flushed by the MDSes periodically.
*/
- if ((req1 || req2) && likely(max_sessions)) {
- struct ceph_mds_session **sessions = NULL;
- struct ceph_mds_session *s;
+ if (req1 || req2) {
struct ceph_mds_request *req;
+ struct ceph_mds_session **sessions;
+ struct ceph_mds_session *s;
+ unsigned int max_sessions;
int i;

- sessions = kzalloc(max_sessions * sizeof(s), GFP_KERNEL);
+ mutex_lock(&mdsc->mutex);
+ max_sessions = mdsc->max_sessions;
+
+ sessions = kcalloc(max_sessions, sizeof(s), GFP_KERNEL);
if (!sessions) {
+ mutex_unlock(&mdsc->mutex);
err = -ENOMEM;
goto out;
}
@@ -2268,16 +2263,6 @@ static int unsafe_request_wait(struct inode *inode)
s = req->r_session;
if (!s)
continue;
- if (unlikely(s->s_mds >= max_sessions)) {
- spin_unlock(&ci->i_unsafe_lock);
- for (i = 0; i < max_sessions; i++) {
- s = sessions[i];
- if (s)
- ceph_put_mds_session(s);
- }
- kfree(sessions);
- goto retry;
- }
if (!sessions[s->s_mds]) {
s = ceph_get_mds_session(s);
sessions[s->s_mds] = s;
@@ -2290,16 +2275,6 @@ static int unsafe_request_wait(struct inode *inode)
s = req->r_session;
if (!s)
continue;
- if (unlikely(s->s_mds >= max_sessions)) {
- spin_unlock(&ci->i_unsafe_lock);
- for (i = 0; i < max_sessions; i++) {
- s = sessions[i];
- if (s)
- ceph_put_mds_session(s);
- }
- kfree(sessions);
- goto retry;
- }
if (!sessions[s->s_mds]) {
s = ceph_get_mds_session(s);
sessions[s->s_mds] = s;
@@ -2311,11 +2286,12 @@ static int unsafe_request_wait(struct inode *inode)
/* the auth MDS */
spin_lock(&ci->i_ceph_lock);
if (ci->i_auth_cap) {
- s = ci->i_auth_cap->session;
- if (!sessions[s->s_mds])
- sessions[s->s_mds] = ceph_get_mds_session(s);
+ s = ci->i_auth_cap->session;
+ if (!sessions[s->s_mds])
+ sessions[s->s_mds] = ceph_get_mds_session(s);
}
spin_unlock(&ci->i_ceph_lock);
+ mutex_unlock(&mdsc->mutex);

/* send flush mdlog request to MDSes */
for (i = 0; i < max_sessions; i++) {
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index b41e6724c591..b512c82f9ccd 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -705,9 +705,10 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,
struct ceph_mds_snap_realm *ri; /* encoded */
__le64 *snaps; /* encoded */
__le64 *prior_parent_snaps; /* encoded */
- struct ceph_snap_realm *realm = NULL;
+ struct ceph_snap_realm *realm;
struct ceph_snap_realm *first_realm = NULL;
- int invalidate = 0;
+ struct ceph_snap_realm *realm_to_rebuild = NULL;
+ int rebuild_snapcs;
int err = -ENOMEM;
LIST_HEAD(dirty_realms);

@@ -715,6 +716,8 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,

dout("update_snap_trace deletion=%d\n", deletion);
more:
+ realm = NULL;
+ rebuild_snapcs = 0;
ceph_decode_need(&p, e, sizeof(*ri), bad);
ri = p;
p += sizeof(*ri);
@@ -738,7 +741,7 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,
err = adjust_snap_realm_parent(mdsc, realm, le64_to_cpu(ri->parent));
if (err < 0)
goto fail;
- invalidate += err;
+ rebuild_snapcs += err;

if (le64_to_cpu(ri->seq) > realm->seq) {
dout("update_snap_trace updating %llx %p %lld -> %lld\n",
@@ -763,22 +766,30 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,
if (realm->seq > mdsc->last_snap_seq)
mdsc->last_snap_seq = realm->seq;

- invalidate = 1;
+ rebuild_snapcs = 1;
} else if (!realm->cached_context) {
dout("update_snap_trace %llx %p seq %lld new\n",
realm->ino, realm, realm->seq);
- invalidate = 1;
+ rebuild_snapcs = 1;
} else {
dout("update_snap_trace %llx %p seq %lld unchanged\n",
realm->ino, realm, realm->seq);
}

- dout("done with %llx %p, invalidated=%d, %p %p\n", realm->ino,
- realm, invalidate, p, e);
+ dout("done with %llx %p, rebuild_snapcs=%d, %p %p\n", realm->ino,
+ realm, rebuild_snapcs, p, e);
+
+ /*
+ * this will always track the uppest parent realm from which
+ * we need to rebuild the snapshot contexts _downward_ in
+ * hierarchy.
+ */
+ if (rebuild_snapcs)
+ realm_to_rebuild = realm;

- /* invalidate when we reach the _end_ (root) of the trace */
- if (invalidate && p >= e)
- rebuild_snap_realms(realm, &dirty_realms);
+ /* rebuild_snapcs when we reach the _end_ (root) of the trace */
+ if (realm_to_rebuild && p >= e)
+ rebuild_snap_realms(realm_to_rebuild, &dirty_realms);

if (!first_realm)
first_realm = realm;
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index 007427ba75e5..b0864da9ef43 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -307,12 +307,8 @@ static struct vfsmount *cifs_dfs_do_mount(struct dentry *mntpt,
static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
{
struct cifs_sb_info *cifs_sb;
- struct cifs_ses *ses;
- struct cifs_tcon *tcon;
void *page;
- char *full_path, *root_path;
- unsigned int xid;
- int rc;
+ char *full_path;
struct vfsmount *mnt;

cifs_dbg(FYI, "in %s\n", __func__);
@@ -324,8 +320,6 @@ static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
* the double backslashes usually used in the UNC. This function
* gives us the latter, so we must adjust the result.
*/
- mnt = ERR_PTR(-ENOMEM);
-
cifs_sb = CIFS_SB(mntpt->d_sb);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS) {
mnt = ERR_PTR(-EREMOTE);
@@ -341,60 +335,11 @@ static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
}

convert_delimiter(full_path, '\\');
-
cifs_dbg(FYI, "%s: full_path: %s\n", __func__, full_path);

- if (!cifs_sb_master_tlink(cifs_sb)) {
- cifs_dbg(FYI, "%s: master tlink is NULL\n", __func__);
- goto free_full_path;
- }
-
- tcon = cifs_sb_master_tcon(cifs_sb);
- if (!tcon) {
- cifs_dbg(FYI, "%s: master tcon is NULL\n", __func__);
- goto free_full_path;
- }
-
- root_path = kstrdup(tcon->treeName, GFP_KERNEL);
- if (!root_path) {
- mnt = ERR_PTR(-ENOMEM);
- goto free_full_path;
- }
- cifs_dbg(FYI, "%s: root path: %s\n", __func__, root_path);
-
- ses = tcon->ses;
- xid = get_xid();
-
- /*
- * If DFS root has been expired, then unconditionally fetch it again to
- * refresh DFS referral cache.
- */
- rc = dfs_cache_find(xid, ses, cifs_sb->local_nls, cifs_remap(cifs_sb),
- root_path + 1, NULL, NULL);
- if (!rc) {
- rc = dfs_cache_find(xid, ses, cifs_sb->local_nls,
- cifs_remap(cifs_sb), full_path + 1,
- NULL, NULL);
- }
-
- free_xid(xid);
-
- if (rc) {
- mnt = ERR_PTR(rc);
- goto free_root_path;
- }
- /*
- * OK - we were able to get and cache a referral for @full_path.
- *
- * Now, pass it down to cifs_mount() and it will retry every available
- * node server in case of failures - no need to do it here.
- */
mnt = cifs_dfs_do_mount(mntpt, cifs_sb, full_path);
- cifs_dbg(FYI, "%s: cifs_dfs_do_mount:%s , mnt:%p\n", __func__,
- full_path + 1, mnt);
+ cifs_dbg(FYI, "%s: cifs_dfs_do_mount:%s , mnt:%p\n", __func__, full_path + 1, mnt);

-free_root_path:
- kfree(root_path);
free_full_path:
free_dentry_path(page);
cdda_exit:
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index f97407520ea1..013a4bd65280 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -61,11 +61,6 @@ struct cifs_sb_info {
/* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */
char *prepath;

- /*
- * Canonical DFS path initially provided by the mount call. We might connect to something
- * different via DFS but we want to keep it to do failover properly.
- */
- char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */
/* randomly generated 128-bit number for indexing dfs mount groups in referral cache */
uuid_t dfs_mount_id;
/*
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index a97ed30843cf..1ab72c3d0bff 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -693,6 +693,19 @@ struct TCP_Server_Info {
#endif
#ifdef CONFIG_CIFS_DFS_UPCALL
bool is_dfs_conn; /* if a dfs connection */
+ struct mutex refpath_lock; /* protects leaf_fullpath */
+ /*
+ * Canonical DFS full paths that were used to chase referrals in mount and reconnect.
+ *
+ * origin_fullpath: first or original referral path
+ * leaf_fullpath: last referral path (might be changed due to nested links in reconnect)
+ *
+ * current_fullpath: pointer to either origin_fullpath or leaf_fullpath
+ * NOTE: cannot be accessed outside cifs_reconnect() and smb2_reconnect()
+ *
+ * format: \\HOST\SHARE\[OPTIONAL PATH]
+ */
+ char *origin_fullpath, *leaf_fullpath, *current_fullpath;
#endif
};

@@ -1097,7 +1110,6 @@ struct cifs_tcon {
struct cached_fid crfid; /* Cached root fid */
/* BB add field for back pointer to sb struct(s)? */
#ifdef CONFIG_CIFS_DFS_UPCALL
- char *dfs_path; /* canonical DFS path */
struct list_head ulist; /* cache update list */
#endif
};
@@ -1950,4 +1962,14 @@ static inline bool is_tcon_dfs(struct cifs_tcon *tcon)
tcon->share_flags & (SHI1005_FLAGS_DFS | SHI1005_FLAGS_DFS_ROOT);
}

+static inline bool cifs_is_referral_server(struct cifs_tcon *tcon,
+ const struct dfs_info3_param *ref)
+{
+ /*
+ * Check if all targets are capable of handling DFS referrals as per
+ * MS-DFSC 2.2.4 RESP_GET_DFS_REFERRAL.
+ */
+ return is_tcon_dfs(tcon) || (ref && (ref->flags & DFSREF_REFERRAL_SERVER));
+}
+
#endif /* _CIFS_GLOB_H */
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index d0f85b666662..b2697356b5e7 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -607,7 +607,7 @@ int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,

struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
void cifs_put_tcp_super(struct super_block *sb);
-int update_super_prepath(struct cifs_tcon *tcon, char *prefix);
+int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix);
char *extract_hostname(const char *unc);
char *extract_sharename(const char *unc);

@@ -634,4 +634,7 @@ static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
return options;
}

+struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon);
+void cifs_put_tcon_super(struct super_block *sb);
+
#endif /* _CIFSPROTO_H */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index ad5c935f7f06..c6e2a0ff8f0c 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -61,6 +61,20 @@ extern bool disable_legacy_dialects;
/* Drop the connection to not overload the server */
#define NUM_STATUS_IO_TIMEOUT 5

+struct mount_ctx {
+ struct cifs_sb_info *cifs_sb;
+ struct smb3_fs_context *fs_ctx;
+ unsigned int xid;
+ struct TCP_Server_Info *server;
+ struct cifs_ses *ses;
+ struct cifs_tcon *tcon;
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ struct cifs_ses *root_ses;
+ uuid_t mount_id;
+ char *origin_fullpath, *leaf_fullpath;
+#endif
+};
+
static int ip_connect(struct TCP_Server_Info *server);
static int generic_ip_connect(struct TCP_Server_Info *server);
static void tlink_rb_insert(struct rb_root *root, struct tcon_link *new_tlink);
@@ -148,131 +162,29 @@ static void cifs_resolve_server(struct work_struct *work)
mutex_unlock(&server->srv_mutex);
}

-#ifdef CONFIG_CIFS_DFS_UPCALL
-/* These functions must be called with server->srv_mutex held */
-static void reconn_set_next_dfs_target(struct TCP_Server_Info *server,
- struct cifs_sb_info *cifs_sb,
- struct dfs_cache_tgt_list *tgt_list,
- struct dfs_cache_tgt_iterator **tgt_it)
-{
- const char *name;
- int rc;
-
- if (!cifs_sb || !cifs_sb->origin_fullpath)
- return;
-
- if (!*tgt_it) {
- *tgt_it = dfs_cache_get_tgt_iterator(tgt_list);
- } else {
- *tgt_it = dfs_cache_get_next_tgt(tgt_list, *tgt_it);
- if (!*tgt_it)
- *tgt_it = dfs_cache_get_tgt_iterator(tgt_list);
- }
-
- cifs_dbg(FYI, "%s: UNC: %s\n", __func__, cifs_sb->origin_fullpath);
-
- name = dfs_cache_get_tgt_name(*tgt_it);
-
- kfree(server->hostname);
-
- server->hostname = extract_hostname(name);
- if (IS_ERR(server->hostname)) {
- cifs_dbg(FYI,
- "%s: failed to extract hostname from target: %ld\n",
- __func__, PTR_ERR(server->hostname));
- return;
- }
-
- rc = reconn_set_ipaddr_from_hostname(server);
- if (rc) {
- cifs_dbg(FYI, "%s: failed to resolve hostname: %d\n",
- __func__, rc);
- }
-}
-
-static inline int reconn_setup_dfs_targets(struct cifs_sb_info *cifs_sb,
- struct dfs_cache_tgt_list *tl)
-{
- if (!cifs_sb->origin_fullpath)
- return -EOPNOTSUPP;
- return dfs_cache_noreq_find(cifs_sb->origin_fullpath + 1, NULL, tl);
-}
-#endif
-
-/*
- * cifs tcp session reconnection
+/**
+ * Mark all sessions and tcons for reconnect.
*
- * mark tcp session as reconnecting so temporarily locked
- * mark all smb sessions as reconnecting for tcp session
- * reconnect tcp session
- * wake up waiters on reconnection? - (not needed currently)
+ * @server needs to be previously set to CifsNeedReconnect.
*/
-int
-cifs_reconnect(struct TCP_Server_Info *server)
+static void cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server)
{
- int rc = 0;
struct list_head *tmp, *tmp2;
struct cifs_ses *ses;
struct cifs_tcon *tcon;
struct mid_q_entry *mid_entry;
struct list_head retry_list;
-#ifdef CONFIG_CIFS_DFS_UPCALL
- struct super_block *sb = NULL;
- struct cifs_sb_info *cifs_sb = NULL;
- struct dfs_cache_tgt_list tgt_list = DFS_CACHE_TGT_LIST_INIT(tgt_list);
- struct dfs_cache_tgt_iterator *tgt_it = NULL;
-#endif

- spin_lock(&GlobalMid_Lock);
- server->nr_targets = 1;
-#ifdef CONFIG_CIFS_DFS_UPCALL
- spin_unlock(&GlobalMid_Lock);
- sb = cifs_get_tcp_super(server);
- if (IS_ERR(sb)) {
- rc = PTR_ERR(sb);
- cifs_dbg(FYI, "%s: will not do DFS failover: rc = %d\n",
- __func__, rc);
- sb = NULL;
- } else {
- cifs_sb = CIFS_SB(sb);
- rc = reconn_setup_dfs_targets(cifs_sb, &tgt_list);
- if (rc) {
- cifs_sb = NULL;
- if (rc != -EOPNOTSUPP) {
- cifs_server_dbg(VFS, "%s: no target servers for DFS failover\n",
- __func__);
- }
- } else {
- server->nr_targets = dfs_cache_get_nr_tgts(&tgt_list);
- }
- }
- cifs_dbg(FYI, "%s: will retry %d target(s)\n", __func__,
- server->nr_targets);
- spin_lock(&GlobalMid_Lock);
-#endif
- if (server->tcpStatus == CifsExiting) {
- /* the demux thread will exit normally
- next time through the loop */
- spin_unlock(&GlobalMid_Lock);
-#ifdef CONFIG_CIFS_DFS_UPCALL
- dfs_cache_free_tgts(&tgt_list);
- cifs_put_tcp_super(sb);
-#endif
- wake_up(&server->response_q);
- return rc;
- } else
- server->tcpStatus = CifsNeedReconnect;
- spin_unlock(&GlobalMid_Lock);
server->maxBuf = 0;
server->max_read = 0;

cifs_dbg(FYI, "Mark tcp session as need reconnect\n");
trace_smb3_reconnect(server->CurrentMid, server->conn_id, server->hostname);
-
- /* before reconnecting the tcp session, mark the smb session (uid)
- and the tid bad so they are not used until reconnected */
- cifs_dbg(FYI, "%s: marking sessions and tcons for reconnect\n",
- __func__);
+ /*
+ * before reconnecting the tcp session, mark the smb session (uid) and the tid bad so they
+ * are not used until reconnected.
+ */
+ cifs_dbg(FYI, "%s: marking sessions and tcons for reconnect\n", __func__);
spin_lock(&cifs_tcp_ses_lock);
list_for_each(tmp, &server->smb_ses_list) {
ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
@@ -290,11 +202,11 @@ cifs_reconnect(struct TCP_Server_Info *server)
cifs_dbg(FYI, "%s: tearing down socket\n", __func__);
mutex_lock(&server->srv_mutex);
if (server->ssocket) {
- cifs_dbg(FYI, "State: 0x%x Flags: 0x%lx\n",
- server->ssocket->state, server->ssocket->flags);
+ cifs_dbg(FYI, "State: 0x%x Flags: 0x%lx\n", server->ssocket->state,
+ server->ssocket->flags);
kernel_sock_shutdown(server->ssocket, SHUT_WR);
- cifs_dbg(FYI, "Post shutdown state: 0x%x Flags: 0x%lx\n",
- server->ssocket->state, server->ssocket->flags);
+ cifs_dbg(FYI, "Post shutdown state: 0x%x Flags: 0x%lx\n", server->ssocket->state,
+ server->ssocket->flags);
sock_release(server->ssocket);
server->ssocket = NULL;
}
@@ -333,38 +245,48 @@ cifs_reconnect(struct TCP_Server_Info *server)
smbd_destroy(server);
mutex_unlock(&server->srv_mutex);
}
+}
+
+static bool cifs_tcp_ses_needs_reconnect(struct TCP_Server_Info *server, int num_targets)
+{
+ spin_lock(&GlobalMid_Lock);
+ server->nr_targets = num_targets;
+ if (server->tcpStatus == CifsExiting) {
+ /* the demux thread will exit normally next time through the loop */
+ spin_unlock(&GlobalMid_Lock);
+ wake_up(&server->response_q);
+ return false;
+ }
+ server->tcpStatus = CifsNeedReconnect;
+ spin_unlock(&GlobalMid_Lock);
+ return true;
+}
+
+/*
+ * cifs tcp session reconnection
+ *
+ * mark tcp session as reconnecting so temporarily locked
+ * mark all smb sessions as reconnecting for tcp session
+ * reconnect tcp session
+ * wake up waiters on reconnection? - (not needed currently)
+ */
+static int __cifs_reconnect(struct TCP_Server_Info *server)
+{
+ int rc = 0;
+
+ if (!cifs_tcp_ses_needs_reconnect(server, 1))
+ return 0;
+
+ cifs_mark_tcp_ses_conns_for_reconnect(server);

do {
try_to_freeze();
-
mutex_lock(&server->srv_mutex);

-
if (!cifs_swn_set_server_dstaddr(server)) {
-#ifdef CONFIG_CIFS_DFS_UPCALL
- if (cifs_sb && cifs_sb->origin_fullpath)
- /*
- * Set up next DFS target server (if any) for reconnect. If DFS
- * feature is disabled, then we will retry last server we
- * connected to before.
- */
- reconn_set_next_dfs_target(server, cifs_sb, &tgt_list, &tgt_it);
- else {
-#endif
- /*
- * Resolve the hostname again to make sure that IP address is up-to-date.
- */
+ /* resolve the hostname again to make sure that IP address is up-to-date */
rc = reconn_set_ipaddr_from_hostname(server);
- if (rc) {
- cifs_dbg(FYI, "%s: failed to resolve hostname: %d\n",
- __func__, rc);
- }
-
-#ifdef CONFIG_CIFS_DFS_UPCALL
- }
-#endif
-
-
+ cifs_dbg(FYI, "%s: reconn_set_ipaddr_from_hostname: rc=%d\n", __func__, rc);
}

if (cifs_rdma_enabled(server))
@@ -372,8 +294,8 @@ cifs_reconnect(struct TCP_Server_Info *server)
else
rc = generic_ip_connect(server);
if (rc) {
- cifs_dbg(FYI, "reconnect error %d\n", rc);
mutex_unlock(&server->srv_mutex);
+ cifs_dbg(FYI, "%s: reconnect error %d\n", __func__, rc);
msleep(3000);
} else {
atomic_inc(&tcpSesReconnectCount);
@@ -387,19 +309,128 @@ cifs_reconnect(struct TCP_Server_Info *server)
}
} while (server->tcpStatus == CifsNeedReconnect);

+ if (server->tcpStatus == CifsNeedNegotiate)
+ mod_delayed_work(cifsiod_wq, &server->echo, 0);
+
+ wake_up(&server->response_q);
+ return rc;
+}
+
#ifdef CONFIG_CIFS_DFS_UPCALL
- if (tgt_it) {
- rc = dfs_cache_noreq_update_tgthint(cifs_sb->origin_fullpath + 1,
- tgt_it);
- if (rc) {
- cifs_server_dbg(VFS, "%s: failed to update DFS target hint: rc = %d\n",
- __func__, rc);
+static int __reconnect_target_unlocked(struct TCP_Server_Info *server, const char *target)
+{
+ int rc;
+ char *hostname;
+
+ if (!cifs_swn_set_server_dstaddr(server)) {
+ if (server->hostname != target) {
+ hostname = extract_hostname(target);
+ if (!IS_ERR(hostname)) {
+ kfree(server->hostname);
+ server->hostname = hostname;
+ } else {
+ cifs_dbg(FYI, "%s: couldn't extract hostname or address from dfs target: %ld\n",
+ __func__, PTR_ERR(hostname));
+ cifs_dbg(FYI, "%s: default to last target server: %s\n", __func__,
+ server->hostname);
+ }
+ }
+ /* resolve the hostname again to make sure that IP address is up-to-date. */
+ rc = reconn_set_ipaddr_from_hostname(server);
+ cifs_dbg(FYI, "%s: reconn_set_ipaddr_from_hostname: rc=%d\n", __func__, rc);
+ }
+ /* Reconnect the socket */
+ if (cifs_rdma_enabled(server))
+ rc = smbd_reconnect(server);
+ else
+ rc = generic_ip_connect(server);
+
+ return rc;
+}
+
+static int reconnect_target_unlocked(struct TCP_Server_Info *server, struct dfs_cache_tgt_list *tl,
+ struct dfs_cache_tgt_iterator **target_hint)
+{
+ int rc;
+ struct dfs_cache_tgt_iterator *tit;
+
+ *target_hint = NULL;
+
+ /* If dfs target list is empty, then reconnect to last server */
+ tit = dfs_cache_get_tgt_iterator(tl);
+ if (!tit)
+ return __reconnect_target_unlocked(server, server->hostname);
+
+ /* Otherwise, try every dfs target in @tl */
+ for (; tit; tit = dfs_cache_get_next_tgt(tl, tit)) {
+ rc = __reconnect_target_unlocked(server, dfs_cache_get_tgt_name(tit));
+ if (!rc) {
+ *target_hint = tit;
+ break;
}
- dfs_cache_free_tgts(&tgt_list);
}
+ return rc;
+}

- cifs_put_tcp_super(sb);
-#endif
+static int reconnect_dfs_server(struct TCP_Server_Info *server)
+{
+ int rc = 0;
+ const char *refpath = server->current_fullpath + 1;
+ struct dfs_cache_tgt_list tl = DFS_CACHE_TGT_LIST_INIT(tl);
+ struct dfs_cache_tgt_iterator *target_hint = NULL;
+ int num_targets = 0;
+
+ /*
+ * Determine the number of dfs targets the referral path in @cifs_sb resolves to.
+ *
+ * smb2_reconnect() needs to know how long it should wait based upon the number of dfs
+ * targets (server->nr_targets). It's also possible that the cached referral was cleared
+ * through /proc/fs/cifs/dfscache or the target list is empty due to server settings after
+ * refreshing the referral, so, in this case, default it to 1.
+ */
+ if (!dfs_cache_noreq_find(refpath, NULL, &tl))
+ num_targets = dfs_cache_get_nr_tgts(&tl);
+ if (!num_targets)
+ num_targets = 1;
+
+ if (!cifs_tcp_ses_needs_reconnect(server, num_targets))
+ return 0;
+
+ cifs_mark_tcp_ses_conns_for_reconnect(server);
+
+ do {
+ try_to_freeze();
+ mutex_lock(&server->srv_mutex);
+
+ rc = reconnect_target_unlocked(server, &tl, &target_hint);
+ if (rc) {
+ /* Failed to reconnect socket */
+ mutex_unlock(&server->srv_mutex);
+ cifs_dbg(FYI, "%s: reconnect error %d\n", __func__, rc);
+ msleep(3000);
+ continue;
+ }
+ /*
+ * Socket was created. Update tcp session status to CifsNeedNegotiate so that a
+ * process waiting for reconnect will know it needs to re-establish session and tcon
+ * through the reconnected target server.
+ */
+ atomic_inc(&tcpSesReconnectCount);
+ set_credits(server, 1);
+ spin_lock(&GlobalMid_Lock);
+ if (server->tcpStatus != CifsExiting)
+ server->tcpStatus = CifsNeedNegotiate;
+ spin_unlock(&GlobalMid_Lock);
+ cifs_swn_reset_server_dstaddr(server);
+ mutex_unlock(&server->srv_mutex);
+ } while (server->tcpStatus == CifsNeedReconnect);
+
+ if (target_hint)
+ dfs_cache_noreq_update_tgthint(refpath, target_hint);
+
+ dfs_cache_free_tgts(&tl);
+
+ /* Need to set up echo worker again once connection has been established */
if (server->tcpStatus == CifsNeedNegotiate)
mod_delayed_work(cifsiod_wq, &server->echo, 0);

@@ -407,6 +438,25 @@ cifs_reconnect(struct TCP_Server_Info *server)
return rc;
}

+int cifs_reconnect(struct TCP_Server_Info *server)
+{
+ /* If tcp session is not an dfs connection, then reconnect to last target server */
+ spin_lock(&cifs_tcp_ses_lock);
+ if (!server->is_dfs_conn || !server->origin_fullpath || !server->leaf_fullpath) {
+ spin_unlock(&cifs_tcp_ses_lock);
+ return __cifs_reconnect(server);
+ }
+ spin_unlock(&cifs_tcp_ses_lock);
+
+ return reconnect_dfs_server(server);
+}
+#else
+int cifs_reconnect(struct TCP_Server_Info *server)
+{
+ return __cifs_reconnect(server);
+}
+#endif
+
static void
cifs_echo_request(struct work_struct *work)
{
@@ -789,6 +839,10 @@ static void clean_demultiplex_info(struct TCP_Server_Info *server)
*/
}

+#ifdef CONFIG_CIFS_DFS_UPCALL
+ kfree(server->origin_fullpath);
+ kfree(server->leaf_fullpath);
+#endif
kfree(server);

length = atomic_dec_return(&tcpSesAllocCount);
@@ -1405,6 +1459,9 @@ cifs_get_tcp_session(struct smb3_fs_context *ctx)
INIT_DELAYED_WORK(&tcp_ses->resolve, cifs_resolve_server);
INIT_DELAYED_WORK(&tcp_ses->reconnect, smb2_reconnect_server);
mutex_init(&tcp_ses->reconnect_mutex);
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ mutex_init(&tcp_ses->refpath_lock);
+#endif
memcpy(&tcp_ses->srcaddr, &ctx->srcaddr,
sizeof(tcp_ses->srcaddr));
memcpy(&tcp_ses->dstaddr, &ctx->dstaddr,
@@ -2869,73 +2926,64 @@ int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb)
}

/* Release all succeed connections */
-static inline void mount_put_conns(struct cifs_sb_info *cifs_sb,
- unsigned int xid,
- struct TCP_Server_Info *server,
- struct cifs_ses *ses, struct cifs_tcon *tcon)
+static inline void mount_put_conns(struct mount_ctx *mnt_ctx)
{
int rc = 0;

- if (tcon)
- cifs_put_tcon(tcon);
- else if (ses)
- cifs_put_smb_ses(ses);
- else if (server)
- cifs_put_tcp_session(server, 0);
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_POSIX_PATHS;
- free_xid(xid);
+ if (mnt_ctx->tcon)
+ cifs_put_tcon(mnt_ctx->tcon);
+ else if (mnt_ctx->ses)
+ cifs_put_smb_ses(mnt_ctx->ses);
+ else if (mnt_ctx->server)
+ cifs_put_tcp_session(mnt_ctx->server, 0);
+ mnt_ctx->cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_POSIX_PATHS;
+ free_xid(mnt_ctx->xid);
}

/* Get connections for tcp, ses and tcon */
-static int mount_get_conns(struct smb3_fs_context *ctx, struct cifs_sb_info *cifs_sb,
- unsigned int *xid,
- struct TCP_Server_Info **nserver,
- struct cifs_ses **nses, struct cifs_tcon **ntcon)
+static int mount_get_conns(struct mount_ctx *mnt_ctx)
{
int rc = 0;
- struct TCP_Server_Info *server;
- struct cifs_ses *ses;
- struct cifs_tcon *tcon;
-
- *nserver = NULL;
- *nses = NULL;
- *ntcon = NULL;
+ struct TCP_Server_Info *server = NULL;
+ struct cifs_ses *ses = NULL;
+ struct cifs_tcon *tcon = NULL;
+ struct smb3_fs_context *ctx = mnt_ctx->fs_ctx;
+ struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
+ unsigned int xid;

- *xid = get_xid();
+ xid = get_xid();

/* get a reference to a tcp session */
server = cifs_get_tcp_session(ctx);
if (IS_ERR(server)) {
rc = PTR_ERR(server);
- return rc;
+ server = NULL;
+ goto out;
}

- *nserver = server;
-
/* get a reference to a SMB session */
ses = cifs_get_smb_ses(server, ctx);
if (IS_ERR(ses)) {
rc = PTR_ERR(ses);
- return rc;
+ ses = NULL;
+ goto out;
}

- *nses = ses;
-
if ((ctx->persistent == true) && (!(ses->server->capabilities &
SMB2_GLOBAL_CAP_PERSISTENT_HANDLES))) {
cifs_server_dbg(VFS, "persistent handles not supported by server\n");
- return -EOPNOTSUPP;
+ rc = -EOPNOTSUPP;
+ goto out;
}

/* search for existing tcon to this server share */
tcon = cifs_get_tcon(ses, ctx);
if (IS_ERR(tcon)) {
rc = PTR_ERR(tcon);
- return rc;
+ tcon = NULL;
+ goto out;
}

- *ntcon = tcon;
-
/* if new SMB3.11 POSIX extensions are supported do not remap / and \ */
if (tcon->posix_extensions)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_POSIX_PATHS;
@@ -2946,17 +2994,19 @@ static int mount_get_conns(struct smb3_fs_context *ctx, struct cifs_sb_info *cif
* reset of caps checks mount to see if unix extensions disabled
* for just this mount.
*/
- reset_cifs_unix_caps(*xid, tcon, cifs_sb, ctx);
+ reset_cifs_unix_caps(xid, tcon, cifs_sb, ctx);
if ((tcon->ses->server->tcpStatus == CifsNeedReconnect) &&
(le64_to_cpu(tcon->fsUnixInfo.Capability) &
- CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP))
- return -EACCES;
+ CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP)) {
+ rc = -EACCES;
+ goto out;
+ }
} else
tcon->unix_ext = 0; /* server does not support them */

/* do not care if a following call succeed - informational */
if (!tcon->pipe && server->ops->qfs_tcon) {
- server->ops->qfs_tcon(*xid, tcon, cifs_sb);
+ server->ops->qfs_tcon(xid, tcon, cifs_sb);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE) {
if (tcon->fsDevInfo.DeviceCharacteristics &
cpu_to_le32(FILE_READ_ONLY_DEVICE))
@@ -2980,7 +3030,13 @@ static int mount_get_conns(struct smb3_fs_context *ctx, struct cifs_sb_info *cif
(cifs_sb->ctx->rsize > server->ops->negotiate_rsize(tcon, ctx)))
cifs_sb->ctx->rsize = server->ops->negotiate_rsize(tcon, ctx);

- return 0;
+out:
+ mnt_ctx->server = server;
+ mnt_ctx->ses = ses;
+ mnt_ctx->tcon = tcon;
+ mnt_ctx->xid = xid;
+
+ return rc;
}

static int mount_setup_tlink(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses,
@@ -3010,18 +3066,17 @@ static int mount_setup_tlink(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses,
}

#ifdef CONFIG_CIFS_DFS_UPCALL
-static int mount_get_dfs_conns(struct smb3_fs_context *ctx, struct cifs_sb_info *cifs_sb,
- unsigned int *xid, struct TCP_Server_Info **nserver,
- struct cifs_ses **nses, struct cifs_tcon **ntcon)
+/* Get unique dfs connections */
+static int mount_get_dfs_conns(struct mount_ctx *mnt_ctx)
{
int rc;

- ctx->nosharesock = true;
- rc = mount_get_conns(ctx, cifs_sb, xid, nserver, nses, ntcon);
- if (*nserver) {
+ mnt_ctx->fs_ctx->nosharesock = true;
+ rc = mount_get_conns(mnt_ctx);
+ if (mnt_ctx->server) {
cifs_dbg(FYI, "%s: marking tcp session as a dfs connection\n", __func__);
spin_lock(&cifs_tcp_ses_lock);
- (*nserver)->is_dfs_conn = true;
+ mnt_ctx->server->is_dfs_conn = true;
spin_unlock(&cifs_tcp_ses_lock);
}
return rc;
@@ -3063,201 +3118,49 @@ build_unc_path_to_root(const struct smb3_fs_context *ctx,
}

/*
- * expand_dfs_referral - Perform a dfs referral query and update the cifs_sb
+ * expand_dfs_referral - Update cifs_sb from dfs referral path
*
- * If a referral is found, cifs_sb->ctx->mount_options will be (re-)allocated
- * to a string containing updated options for the submount. Otherwise it
- * will be left untouched.
- *
- * Returns the rc from get_dfs_path to the caller, which can be used to
- * determine whether there were referrals.
+ * cifs_sb->ctx->mount_options will be (re-)allocated to a string containing updated options for the
+ * submount. Otherwise it will be left untouched.
*/
-static int
-expand_dfs_referral(const unsigned int xid, struct cifs_ses *ses,
- struct smb3_fs_context *ctx, struct cifs_sb_info *cifs_sb,
- char *ref_path)
+static int expand_dfs_referral(struct mount_ctx *mnt_ctx, const char *full_path,
+ struct dfs_info3_param *referral)
{
int rc;
- struct dfs_info3_param referral = {0};
- char *full_path = NULL, *mdata = NULL;
-
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS)
- return -EREMOTE;
-
- full_path = build_unc_path_to_root(ctx, cifs_sb, true);
- if (IS_ERR(full_path))
- return PTR_ERR(full_path);
-
- rc = dfs_cache_find(xid, ses, cifs_sb->local_nls, cifs_remap(cifs_sb),
- ref_path, &referral, NULL);
- if (!rc) {
- char *fake_devname = NULL;
-
- mdata = cifs_compose_mount_options(cifs_sb->ctx->mount_options,
- full_path + 1, &referral,
- &fake_devname);
- free_dfs_info_param(&referral);
-
- if (IS_ERR(mdata)) {
- rc = PTR_ERR(mdata);
- mdata = NULL;
- } else {
- /*
- * We can not clear out the whole structure since we
- * no longer have an explicit function to parse
- * a mount-string. Instead we need to clear out the
- * individual fields that are no longer valid.
- */
- kfree(ctx->prepath);
- ctx->prepath = NULL;
- rc = cifs_setup_volume_info(ctx, mdata, fake_devname);
- }
- kfree(fake_devname);
- kfree(cifs_sb->ctx->mount_options);
- cifs_sb->ctx->mount_options = mdata;
+ struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
+ struct smb3_fs_context *ctx = mnt_ctx->fs_ctx;
+ char *fake_devname = NULL, *mdata = NULL;
+
+ mdata = cifs_compose_mount_options(cifs_sb->ctx->mount_options, full_path + 1, referral,
+ &fake_devname);
+ if (IS_ERR(mdata)) {
+ rc = PTR_ERR(mdata);
+ mdata = NULL;
+ } else {
+ /*
+ * We can not clear out the whole structure since we no longer have an explicit
+ * function to parse a mount-string. Instead we need to clear out the individual
+ * fields that are no longer valid.
+ */
+ kfree(ctx->prepath);
+ ctx->prepath = NULL;
+ rc = cifs_setup_volume_info(ctx, mdata, fake_devname);
}
- kfree(full_path);
- return rc;
-}
+ kfree(fake_devname);
+ kfree(cifs_sb->ctx->mount_options);
+ cifs_sb->ctx->mount_options = mdata;

-static int get_next_dfs_tgt(struct dfs_cache_tgt_list *tgt_list,
- struct dfs_cache_tgt_iterator **tgt_it)
-{
- if (!*tgt_it)
- *tgt_it = dfs_cache_get_tgt_iterator(tgt_list);
- else
- *tgt_it = dfs_cache_get_next_tgt(tgt_list, *tgt_it);
- return !*tgt_it ? -EHOSTDOWN : 0;
+ return rc;
}
+#endif

-static int update_vol_info(const struct dfs_cache_tgt_iterator *tgt_it,
- struct smb3_fs_context *fake_ctx, struct smb3_fs_context *ctx)
+/* TODO: all callers to this are broken. We are not parsing mount_options here
+ * we should pass a clone of the original context?
+ */
+int
+cifs_setup_volume_info(struct smb3_fs_context *ctx, const char *mntopts, const char *devname)
{
- const char *tgt = dfs_cache_get_tgt_name(tgt_it);
- int len = strlen(tgt) + 2;
- char *new_unc;
-
- new_unc = kmalloc(len, GFP_KERNEL);
- if (!new_unc)
- return -ENOMEM;
- scnprintf(new_unc, len, "\\%s", tgt);
-
- kfree(ctx->UNC);
- ctx->UNC = new_unc;
-
- if (fake_ctx->prepath) {
- kfree(ctx->prepath);
- ctx->prepath = fake_ctx->prepath;
- fake_ctx->prepath = NULL;
- }
- memcpy(&ctx->dstaddr, &fake_ctx->dstaddr, sizeof(ctx->dstaddr));
-
- return 0;
-}
-
-static int do_dfs_failover(const char *path, const char *full_path, struct cifs_sb_info *cifs_sb,
- struct smb3_fs_context *ctx, struct cifs_ses *root_ses,
- unsigned int *xid, struct TCP_Server_Info **server,
- struct cifs_ses **ses, struct cifs_tcon **tcon)
-{
- int rc;
- char *npath = NULL;
- struct dfs_cache_tgt_list tgt_list = DFS_CACHE_TGT_LIST_INIT(tgt_list);
- struct dfs_cache_tgt_iterator *tgt_it = NULL;
- struct smb3_fs_context tmp_ctx = {NULL};
-
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS)
- return -EOPNOTSUPP;
-
- npath = dfs_cache_canonical_path(path, cifs_sb->local_nls, cifs_remap(cifs_sb));
- if (IS_ERR(npath))
- return PTR_ERR(npath);
-
- cifs_dbg(FYI, "%s: path=%s full_path=%s\n", __func__, npath, full_path);
-
- rc = dfs_cache_noreq_find(npath, NULL, &tgt_list);
- if (rc)
- goto out;
- /*
- * We use a 'tmp_ctx' here because we need pass it down to the mount_{get,put} functions to
- * test connection against new DFS targets.
- */
- rc = smb3_fs_context_dup(&tmp_ctx, ctx);
- if (rc)
- goto out;
-
- for (;;) {
- struct dfs_info3_param ref = {0};
- char *fake_devname = NULL, *mdata = NULL;
-
- /* Get next DFS target server - if any */
- rc = get_next_dfs_tgt(&tgt_list, &tgt_it);
- if (rc)
- break;
-
- rc = dfs_cache_get_tgt_referral(npath, tgt_it, &ref);
- if (rc)
- break;
-
- cifs_dbg(FYI, "%s: old ctx: UNC=%s prepath=%s\n", __func__, tmp_ctx.UNC,
- tmp_ctx.prepath);
-
- mdata = cifs_compose_mount_options(cifs_sb->ctx->mount_options, full_path + 1, &ref,
- &fake_devname);
- free_dfs_info_param(&ref);
-
- if (IS_ERR(mdata)) {
- rc = PTR_ERR(mdata);
- mdata = NULL;
- } else
- rc = cifs_setup_volume_info(&tmp_ctx, mdata, fake_devname);
-
- kfree(mdata);
- kfree(fake_devname);
-
- if (rc)
- break;
-
- cifs_dbg(FYI, "%s: new ctx: UNC=%s prepath=%s\n", __func__, tmp_ctx.UNC,
- tmp_ctx.prepath);
-
- mount_put_conns(cifs_sb, *xid, *server, *ses, *tcon);
- rc = mount_get_dfs_conns(&tmp_ctx, cifs_sb, xid, server, ses, tcon);
- if (!rc || (*server && *ses)) {
- /*
- * We were able to connect to new target server. Update current context with
- * new target server.
- */
- rc = update_vol_info(tgt_it, &tmp_ctx, ctx);
- break;
- }
- }
- if (!rc) {
- cifs_dbg(FYI, "%s: final ctx: UNC=%s prepath=%s\n", __func__, tmp_ctx.UNC,
- tmp_ctx.prepath);
- /*
- * Update DFS target hint in DFS referral cache with the target server we
- * successfully reconnected to.
- */
- rc = dfs_cache_update_tgthint(*xid, root_ses ? root_ses : *ses, cifs_sb->local_nls,
- cifs_remap(cifs_sb), path, tgt_it);
- }
-
-out:
- kfree(npath);
- smb3_cleanup_fs_context_contents(&tmp_ctx);
- dfs_cache_free_tgts(&tgt_list);
- return rc;
-}
-#endif
-
-/* TODO: all callers to this are broken. We are not parsing mount_options here
- * we should pass a clone of the original context?
- */
-int
-cifs_setup_volume_info(struct smb3_fs_context *ctx, const char *mntopts, const char *devname)
-{
- int rc;
+ int rc;

if (devname) {
cifs_dbg(FYI, "%s: devname=%s\n", __func__, devname);
@@ -3353,12 +3256,14 @@ cifs_are_all_path_components_accessible(struct TCP_Server_Info *server,
* Check if path is remote (e.g. a DFS share). Return -EREMOTE if it is,
* otherwise 0.
*/
-static int is_path_remote(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx,
- const unsigned int xid,
- struct TCP_Server_Info *server,
- struct cifs_tcon *tcon)
+static int is_path_remote(struct mount_ctx *mnt_ctx)
{
int rc;
+ struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
+ struct TCP_Server_Info *server = mnt_ctx->server;
+ unsigned int xid = mnt_ctx->xid;
+ struct cifs_tcon *tcon = mnt_ctx->tcon;
+ struct smb3_fs_context *ctx = mnt_ctx->fs_ctx;
char *full_path;

if (!server->ops->is_path_accessible)
@@ -3396,280 +3301,298 @@ static int is_path_remote(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *
}

#ifdef CONFIG_CIFS_DFS_UPCALL
-static void set_root_ses(struct cifs_sb_info *cifs_sb, const uuid_t *mount_id, struct cifs_ses *ses,
- struct cifs_ses **root_ses)
+static void set_root_ses(struct mount_ctx *mnt_ctx)
{
- if (ses) {
+ if (mnt_ctx->ses) {
spin_lock(&cifs_tcp_ses_lock);
- ses->ses_count++;
+ mnt_ctx->ses->ses_count++;
spin_unlock(&cifs_tcp_ses_lock);
- dfs_cache_add_refsrv_session(mount_id, ses);
+ dfs_cache_add_refsrv_session(&mnt_ctx->mount_id, mnt_ctx->ses);
}
- *root_ses = ses;
+ mnt_ctx->root_ses = mnt_ctx->ses;
}

-/* Set up next dfs prefix path in @dfs_path */
-static int next_dfs_prepath(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx,
- const unsigned int xid, struct TCP_Server_Info *server,
- struct cifs_tcon *tcon, char **dfs_path)
+static int is_dfs_mount(struct mount_ctx *mnt_ctx, bool *isdfs, struct dfs_cache_tgt_list *root_tl)
{
- char *path, *npath;
- int added_treename = is_tcon_dfs(tcon);
int rc;
+ struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
+ struct smb3_fs_context *ctx = mnt_ctx->fs_ctx;

- path = cifs_build_path_to_root(ctx, cifs_sb, tcon, added_treename);
- if (!path)
- return -ENOMEM;
+ *isdfs = true;

- rc = is_path_remote(cifs_sb, ctx, xid, server, tcon);
- if (rc == -EREMOTE) {
- struct smb3_fs_context v = {NULL};
- /* if @path contains a tree name, skip it in the prefix path */
- if (added_treename) {
- rc = smb3_parse_devname(path, &v);
- if (rc)
- goto out;
- npath = build_unc_path_to_root(&v, cifs_sb, true);
- smb3_cleanup_fs_context_contents(&v);
- } else {
- v.UNC = ctx->UNC;
- v.prepath = path + 1;
- npath = build_unc_path_to_root(&v, cifs_sb, true);
- }
+ rc = mount_get_conns(mnt_ctx);
+ /*
+ * If called with 'nodfs' mount option, then skip DFS resolving. Otherwise unconditionally
+ * try to get an DFS referral (even cached) to determine whether it is an DFS mount.
+ *
+ * Skip prefix path to provide support for DFS referrals from w2k8 servers which don't seem
+ * to respond with PATH_NOT_COVERED to requests that include the prefix.
+ */
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS) ||
+ dfs_cache_find(mnt_ctx->xid, mnt_ctx->ses, cifs_sb->local_nls, cifs_remap(cifs_sb),
+ ctx->UNC + 1, NULL, root_tl)) {
+ if (rc)
+ return rc;
+ /* Check if it is fully accessible and then mount it */
+ rc = is_path_remote(mnt_ctx);
+ if (!rc)
+ *isdfs = false;
+ else if (rc != -EREMOTE)
+ return rc;
+ }
+ return 0;
+}

- if (IS_ERR(npath)) {
- rc = PTR_ERR(npath);
- goto out;
- }
+static int connect_dfs_target(struct mount_ctx *mnt_ctx, const char *full_path,
+ const char *ref_path, struct dfs_cache_tgt_iterator *tit)
+{
+ int rc;
+ struct dfs_info3_param ref = {};
+ struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
+ char *oldmnt = cifs_sb->ctx->mount_options;
+
+ rc = dfs_cache_get_tgt_referral(ref_path, tit, &ref);
+ if (rc)
+ goto out;
+
+ rc = expand_dfs_referral(mnt_ctx, full_path, &ref);
+ if (rc)
+ goto out;

- kfree(*dfs_path);
- *dfs_path = npath;
- rc = -EREMOTE;
+ /* Connect to new target only if we were redirected (e.g. mount options changed) */
+ if (oldmnt != cifs_sb->ctx->mount_options) {
+ mount_put_conns(mnt_ctx);
+ rc = mount_get_dfs_conns(mnt_ctx);
+ }
+ if (!rc) {
+ if (cifs_is_referral_server(mnt_ctx->tcon, &ref))
+ set_root_ses(mnt_ctx);
+ rc = dfs_cache_update_tgthint(mnt_ctx->xid, mnt_ctx->root_ses, cifs_sb->local_nls,
+ cifs_remap(cifs_sb), ref_path, tit);
}

out:
- kfree(path);
+ free_dfs_info_param(&ref);
return rc;
}

-/* Check if resolved targets can handle any DFS referrals */
-static int is_referral_server(const char *ref_path, struct cifs_sb_info *cifs_sb,
- struct cifs_tcon *tcon, bool *ref_server)
+static int connect_dfs_root(struct mount_ctx *mnt_ctx, struct dfs_cache_tgt_list *root_tl)
{
int rc;
- struct dfs_info3_param ref = {0};
+ char *full_path;
+ struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
+ struct smb3_fs_context *ctx = mnt_ctx->fs_ctx;
+ struct dfs_cache_tgt_iterator *tit;

- cifs_dbg(FYI, "%s: ref_path=%s\n", __func__, ref_path);
+ /* Put initial connections as they might be shared with other mounts. We need unique dfs
+ * connections per mount to properly failover, so mount_get_dfs_conns() must be used from
+ * now on.
+ */
+ mount_put_conns(mnt_ctx);
+ mount_get_dfs_conns(mnt_ctx);
+ set_root_ses(mnt_ctx);

- if (is_tcon_dfs(tcon)) {
- *ref_server = true;
- } else {
- char *npath;
+ full_path = build_unc_path_to_root(ctx, cifs_sb, true);
+ if (IS_ERR(full_path))
+ return PTR_ERR(full_path);

- npath = dfs_cache_canonical_path(ref_path, cifs_sb->local_nls, cifs_remap(cifs_sb));
- if (IS_ERR(npath))
- return PTR_ERR(npath);
+ mnt_ctx->origin_fullpath = dfs_cache_canonical_path(ctx->UNC, cifs_sb->local_nls,
+ cifs_remap(cifs_sb));
+ if (IS_ERR(mnt_ctx->origin_fullpath)) {
+ rc = PTR_ERR(mnt_ctx->origin_fullpath);
+ mnt_ctx->origin_fullpath = NULL;
+ goto out;
+ }

- rc = dfs_cache_noreq_find(npath, &ref, NULL);
- kfree(npath);
- if (rc) {
- cifs_dbg(VFS, "%s: dfs_cache_noreq_find: failed (rc=%d)\n", __func__, rc);
- return rc;
+ /* Try all dfs root targets */
+ for (rc = -ENOENT, tit = dfs_cache_get_tgt_iterator(root_tl);
+ tit; tit = dfs_cache_get_next_tgt(root_tl, tit)) {
+ rc = connect_dfs_target(mnt_ctx, full_path, mnt_ctx->origin_fullpath + 1, tit);
+ if (!rc) {
+ mnt_ctx->leaf_fullpath = kstrdup(mnt_ctx->origin_fullpath, GFP_KERNEL);
+ if (!mnt_ctx->leaf_fullpath)
+ rc = -ENOMEM;
+ break;
}
- cifs_dbg(FYI, "%s: ref.flags=0x%x\n", __func__, ref.flags);
- /*
- * Check if all targets are capable of handling DFS referrals as per
- * MS-DFSC 2.2.4 RESP_GET_DFS_REFERRAL.
- */
- *ref_server = !!(ref.flags & DFSREF_REFERRAL_SERVER);
- free_dfs_info_param(&ref);
}
- return 0;
+
+out:
+ kfree(full_path);
+ return rc;
}

-int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx)
+static int __follow_dfs_link(struct mount_ctx *mnt_ctx)
{
- int rc = 0;
- unsigned int xid;
- struct TCP_Server_Info *server = NULL;
- struct cifs_ses *ses = NULL, *root_ses = NULL;
- struct cifs_tcon *tcon = NULL;
- int count = 0;
- uuid_t mount_id = {0};
- char *ref_path = NULL, *full_path = NULL;
- char *oldmnt = NULL;
- bool ref_server = false;
+ int rc;
+ struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
+ struct smb3_fs_context *ctx = mnt_ctx->fs_ctx;
+ char *full_path;
+ struct dfs_cache_tgt_list tl = DFS_CACHE_TGT_LIST_INIT(tl);
+ struct dfs_cache_tgt_iterator *tit;

- rc = mount_get_conns(ctx, cifs_sb, &xid, &server, &ses, &tcon);
- /*
- * If called with 'nodfs' mount option, then skip DFS resolving. Otherwise unconditionally
- * try to get an DFS referral (even cached) to determine whether it is an DFS mount.
- *
- * Skip prefix path to provide support for DFS referrals from w2k8 servers which don't seem
- * to respond with PATH_NOT_COVERED to requests that include the prefix.
- */
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS) ||
- dfs_cache_find(xid, ses, cifs_sb->local_nls, cifs_remap(cifs_sb), ctx->UNC + 1, NULL,
- NULL)) {
- if (rc)
- goto error;
- /* Check if it is fully accessible and then mount it */
- rc = is_path_remote(cifs_sb, ctx, xid, server, tcon);
- if (!rc)
- goto out;
- if (rc != -EREMOTE)
- goto error;
+ full_path = build_unc_path_to_root(ctx, cifs_sb, true);
+ if (IS_ERR(full_path))
+ return PTR_ERR(full_path);
+
+ kfree(mnt_ctx->leaf_fullpath);
+ mnt_ctx->leaf_fullpath = dfs_cache_canonical_path(full_path, cifs_sb->local_nls,
+ cifs_remap(cifs_sb));
+ if (IS_ERR(mnt_ctx->leaf_fullpath)) {
+ rc = PTR_ERR(mnt_ctx->leaf_fullpath);
+ mnt_ctx->leaf_fullpath = NULL;
+ goto out;
}

- mount_put_conns(cifs_sb, xid, server, ses, tcon);
- /*
- * Ignore error check here because we may failover to other targets from cached a
- * referral.
- */
- (void)mount_get_dfs_conns(ctx, cifs_sb, &xid, &server, &ses, &tcon);
+ /* Get referral from dfs link */
+ rc = dfs_cache_find(mnt_ctx->xid, mnt_ctx->root_ses, cifs_sb->local_nls,
+ cifs_remap(cifs_sb), mnt_ctx->leaf_fullpath + 1, NULL, &tl);
+ if (rc)
+ goto out;

- /* Get path of DFS root */
- ref_path = build_unc_path_to_root(ctx, cifs_sb, false);
- if (IS_ERR(ref_path)) {
- rc = PTR_ERR(ref_path);
- ref_path = NULL;
- goto error;
+ /* Try all dfs link targets */
+ for (rc = -ENOENT, tit = dfs_cache_get_tgt_iterator(&tl);
+ tit; tit = dfs_cache_get_next_tgt(&tl, tit)) {
+ rc = connect_dfs_target(mnt_ctx, full_path, mnt_ctx->leaf_fullpath + 1, tit);
+ if (!rc) {
+ rc = is_path_remote(mnt_ctx);
+ break;
+ }
+ }
+
+out:
+ kfree(full_path);
+ dfs_cache_free_tgts(&tl);
+ return rc;
+}
+
+static int follow_dfs_link(struct mount_ctx *mnt_ctx)
+{
+ int rc;
+ struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
+ struct smb3_fs_context *ctx = mnt_ctx->fs_ctx;
+ char *full_path;
+ int num_links = 0;
+
+ full_path = build_unc_path_to_root(ctx, cifs_sb, true);
+ if (IS_ERR(full_path))
+ return PTR_ERR(full_path);
+
+ kfree(mnt_ctx->origin_fullpath);
+ mnt_ctx->origin_fullpath = dfs_cache_canonical_path(full_path, cifs_sb->local_nls,
+ cifs_remap(cifs_sb));
+ kfree(full_path);
+
+ if (IS_ERR(mnt_ctx->origin_fullpath)) {
+ rc = PTR_ERR(mnt_ctx->origin_fullpath);
+ mnt_ctx->origin_fullpath = NULL;
+ return rc;
}

- uuid_gen(&mount_id);
- set_root_ses(cifs_sb, &mount_id, ses, &root_ses);
do {
- /* Save full path of last DFS path we used to resolve final target server */
- kfree(full_path);
- full_path = build_unc_path_to_root(ctx, cifs_sb, !!count);
- if (IS_ERR(full_path)) {
- rc = PTR_ERR(full_path);
- full_path = NULL;
- break;
- }
- /* Chase referral */
- oldmnt = cifs_sb->ctx->mount_options;
- rc = expand_dfs_referral(xid, root_ses, ctx, cifs_sb, ref_path + 1);
- if (rc)
+ rc = __follow_dfs_link(mnt_ctx);
+ if (!rc || rc != -EREMOTE)
break;
- /* Connect to new DFS target only if we were redirected */
- if (oldmnt != cifs_sb->ctx->mount_options) {
- mount_put_conns(cifs_sb, xid, server, ses, tcon);
- rc = mount_get_dfs_conns(ctx, cifs_sb, &xid, &server, &ses, &tcon);
- }
- if (rc && !server && !ses) {
- /* Failed to connect. Try to connect to other targets in the referral. */
- rc = do_dfs_failover(ref_path + 1, full_path, cifs_sb, ctx, root_ses, &xid,
- &server, &ses, &tcon);
- }
- if (rc == -EACCES || rc == -EOPNOTSUPP || !server || !ses)
- break;
- if (!tcon)
- continue;
+ } while (rc = -ELOOP, ++num_links < MAX_NESTED_LINKS);

- /* Make sure that requests go through new root servers */
- rc = is_referral_server(ref_path + 1, cifs_sb, tcon, &ref_server);
- if (rc)
- break;
- if (ref_server)
- set_root_ses(cifs_sb, &mount_id, ses, &root_ses);
+ return rc;
+}

- /* Get next dfs path and then continue chasing them if -EREMOTE */
- rc = next_dfs_prepath(cifs_sb, ctx, xid, server, tcon, &ref_path);
- /* Prevent recursion on broken link referrals */
- if (rc == -EREMOTE && ++count > MAX_NESTED_LINKS)
- rc = -ELOOP;
- } while (rc == -EREMOTE);
+/* Set up DFS referral paths for failover */
+static void setup_server_referral_paths(struct mount_ctx *mnt_ctx)
+{
+ struct TCP_Server_Info *server = mnt_ctx->server;
+
+ server->origin_fullpath = mnt_ctx->origin_fullpath;
+ server->leaf_fullpath = mnt_ctx->leaf_fullpath;
+ server->current_fullpath = mnt_ctx->leaf_fullpath;
+ mnt_ctx->origin_fullpath = mnt_ctx->leaf_fullpath = NULL;
+}

- if (rc || !tcon || !ses)
+int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx)
+{
+ int rc;
+ struct mount_ctx mnt_ctx = { .cifs_sb = cifs_sb, .fs_ctx = ctx, };
+ struct dfs_cache_tgt_list tl = DFS_CACHE_TGT_LIST_INIT(tl);
+ bool isdfs;
+
+ rc = is_dfs_mount(&mnt_ctx, &isdfs, &tl);
+ if (rc)
goto error;
+ if (!isdfs)
+ goto out;

- kfree(ref_path);
- /*
- * Store DFS full path in both superblock and tree connect structures.
- *
- * For DFS root mounts, the prefix path (cifs_sb->prepath) is preserved during reconnect so
- * only the root path is set in cifs_sb->origin_fullpath and tcon->dfs_path. And for DFS
- * links, the prefix path is included in both and may be changed during reconnect. See
- * cifs_tree_connect().
- */
- ref_path = dfs_cache_canonical_path(full_path, cifs_sb->local_nls, cifs_remap(cifs_sb));
- kfree(full_path);
- full_path = NULL;
+ uuid_gen(&mnt_ctx.mount_id);
+ rc = connect_dfs_root(&mnt_ctx, &tl);
+ dfs_cache_free_tgts(&tl);

- if (IS_ERR(ref_path)) {
- rc = PTR_ERR(ref_path);
- ref_path = NULL;
+ if (rc)
goto error;
- }
- cifs_sb->origin_fullpath = ref_path;

- ref_path = kstrdup(cifs_sb->origin_fullpath, GFP_KERNEL);
- if (!ref_path) {
- rc = -ENOMEM;
+ rc = is_path_remote(&mnt_ctx);
+ if (rc == -EREMOTE)
+ rc = follow_dfs_link(&mnt_ctx);
+ if (rc)
goto error;
- }
- spin_lock(&cifs_tcp_ses_lock);
- tcon->dfs_path = ref_path;
- ref_path = NULL;
- spin_unlock(&cifs_tcp_ses_lock);

+ setup_server_referral_paths(&mnt_ctx);
/*
- * After reconnecting to a different server, unique ids won't
- * match anymore, so we disable serverino. This prevents
- * dentry revalidation to think the dentry are stale (ESTALE).
+ * After reconnecting to a different server, unique ids won't match anymore, so we disable
+ * serverino. This prevents dentry revalidation to think the dentry are stale (ESTALE).
*/
cifs_autodisable_serverino(cifs_sb);
/*
- * Force the use of prefix path to support failover on DFS paths that
- * resolve to targets that have different prefix paths.
+ * Force the use of prefix path to support failover on DFS paths that resolve to targets
+ * that have different prefix paths.
*/
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
kfree(cifs_sb->prepath);
cifs_sb->prepath = ctx->prepath;
ctx->prepath = NULL;
- uuid_copy(&cifs_sb->dfs_mount_id, &mount_id);
+ uuid_copy(&cifs_sb->dfs_mount_id, &mnt_ctx.mount_id);

out:
- free_xid(xid);
- cifs_try_adding_channels(cifs_sb, ses);
- return mount_setup_tlink(cifs_sb, ses, tcon);
+ cifs_try_adding_channels(cifs_sb, mnt_ctx.ses);
+ rc = mount_setup_tlink(cifs_sb, mnt_ctx.ses, mnt_ctx.tcon);
+ if (rc)
+ goto error;
+
+ free_xid(mnt_ctx.xid);
+ return rc;

error:
- kfree(ref_path);
- kfree(full_path);
- kfree(cifs_sb->origin_fullpath);
- dfs_cache_put_refsrv_sessions(&mount_id);
- mount_put_conns(cifs_sb, xid, server, ses, tcon);
+ dfs_cache_put_refsrv_sessions(&mnt_ctx.mount_id);
+ kfree(mnt_ctx.origin_fullpath);
+ kfree(mnt_ctx.leaf_fullpath);
+ mount_put_conns(&mnt_ctx);
return rc;
}
#else
int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx)
{
int rc = 0;
- unsigned int xid;
- struct cifs_ses *ses;
- struct cifs_tcon *tcon;
- struct TCP_Server_Info *server;
+ struct mount_ctx mnt_ctx = { .cifs_sb = cifs_sb, .fs_ctx = ctx, };

- rc = mount_get_conns(ctx, cifs_sb, &xid, &server, &ses, &tcon);
+ rc = mount_get_conns(&mnt_ctx);
if (rc)
goto error;

- if (tcon) {
- rc = is_path_remote(cifs_sb, ctx, xid, server, tcon);
+ if (mnt_ctx.tcon) {
+ rc = is_path_remote(&mnt_ctx);
if (rc == -EREMOTE)
rc = -EOPNOTSUPP;
if (rc)
goto error;
}

- free_xid(xid);
+ rc = mount_setup_tlink(cifs_sb, mnt_ctx.ses, mnt_ctx.tcon);
+ if (rc)
+ goto error;

- return mount_setup_tlink(cifs_sb, ses, tcon);
+ free_xid(mnt_ctx.xid);
+ return rc;

error:
- mount_put_conns(cifs_sb, xid, server, ses, tcon);
+ mount_put_conns(&mnt_ctx);
return rc;
}
#endif
@@ -3837,7 +3760,6 @@ cifs_umount(struct cifs_sb_info *cifs_sb)
kfree(cifs_sb->prepath);
#ifdef CONFIG_CIFS_DFS_UPCALL
dfs_cache_put_refsrv_sessions(&cifs_sb->dfs_mount_id);
- kfree(cifs_sb->origin_fullpath);
#endif
call_rcu(&cifs_sb->rcu, delayed_free);
}
@@ -4164,104 +4086,249 @@ cifs_prune_tlinks(struct work_struct *work)
}

#ifdef CONFIG_CIFS_DFS_UPCALL
-int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const struct nls_table *nlsc)
+static void mark_tcon_tcp_ses_for_reconnect(struct cifs_tcon *tcon)
+{
+ int i;
+
+ for (i = 0; i < tcon->ses->chan_count; i++) {
+ spin_lock(&GlobalMid_Lock);
+ if (tcon->ses->chans[i].server->tcpStatus != CifsExiting)
+ tcon->ses->chans[i].server->tcpStatus = CifsNeedReconnect;
+ spin_unlock(&GlobalMid_Lock);
+ }
+}
+
+/* Update dfs referral path of superblock */
+static int update_server_fullpath(struct TCP_Server_Info *server, struct cifs_sb_info *cifs_sb,
+ const char *target)
+{
+ int rc = 0;
+ size_t len = strlen(target);
+ char *refpath, *npath;
+
+ if (unlikely(len < 2 || *target != '\\'))
+ return -EINVAL;
+
+ if (target[1] == '\\') {
+ len += 1;
+ refpath = kmalloc(len, GFP_KERNEL);
+ if (!refpath)
+ return -ENOMEM;
+
+ scnprintf(refpath, len, "%s", target);
+ } else {
+ len += sizeof("\\");
+ refpath = kmalloc(len, GFP_KERNEL);
+ if (!refpath)
+ return -ENOMEM;
+
+ scnprintf(refpath, len, "\\%s", target);
+ }
+
+ npath = dfs_cache_canonical_path(refpath, cifs_sb->local_nls, cifs_remap(cifs_sb));
+ kfree(refpath);
+
+ if (IS_ERR(npath)) {
+ rc = PTR_ERR(npath);
+ } else {
+ mutex_lock(&server->refpath_lock);
+ kfree(server->leaf_fullpath);
+ server->leaf_fullpath = npath;
+ mutex_unlock(&server->refpath_lock);
+ server->current_fullpath = server->leaf_fullpath;
+ }
+ return rc;
+}
+
+static int target_share_matches_server(struct TCP_Server_Info *server, const char *tcp_host,
+ size_t tcp_host_len, char *share, bool *target_match)
+{
+ int rc = 0;
+ const char *dfs_host;
+ size_t dfs_host_len;
+
+ *target_match = true;
+ extract_unc_hostname(share, &dfs_host, &dfs_host_len);
+
+ /* Check if hostnames or addresses match */
+ if (dfs_host_len != tcp_host_len || strncasecmp(dfs_host, tcp_host, dfs_host_len) != 0) {
+ cifs_dbg(FYI, "%s: %.*s doesn't match %.*s\n", __func__, (int)dfs_host_len,
+ dfs_host, (int)tcp_host_len, tcp_host);
+ rc = match_target_ip(server, dfs_host, dfs_host_len, target_match);
+ if (rc)
+ cifs_dbg(VFS, "%s: failed to match target ip: %d\n", __func__, rc);
+ }
+ return rc;
+}
+
+int __tree_connect_dfs_target(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb, char *tree,
+ struct dfs_cache_tgt_list *tl, struct dfs_info3_param *ref)
{
int rc;
struct TCP_Server_Info *server = tcon->ses->server;
const struct smb_version_operations *ops = server->ops;
- struct dfs_cache_tgt_list tl;
- struct dfs_cache_tgt_iterator *it = NULL;
- char *tree;
+ struct cifs_tcon *ipc = tcon->ses->tcon_ipc;
+ bool islink;
+ char *share = NULL, *prefix = NULL;
const char *tcp_host;
size_t tcp_host_len;
- const char *dfs_host;
- size_t dfs_host_len;
- char *share = NULL, *prefix = NULL;
- struct dfs_info3_param ref = {0};
- bool isroot;
+ struct dfs_cache_tgt_iterator *tit;
+ bool target_match;

- tree = kzalloc(MAX_TREE_SIZE, GFP_KERNEL);
- if (!tree)
- return -ENOMEM;
+ extract_unc_hostname(server->hostname, &tcp_host, &tcp_host_len);

- /* If it is not dfs or there was no cached dfs referral, then reconnect to same share */
- if (!tcon->dfs_path || dfs_cache_noreq_find(tcon->dfs_path + 1, &ref, &tl)) {
- if (tcon->ipc) {
- scnprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$", server->hostname);
- rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);
- } else {
- rc = ops->tree_connect(xid, tcon->ses, tcon->treeName, tcon, nlsc);
- }
+ islink = ref->server_type == DFS_TYPE_LINK;
+ free_dfs_info_param(ref);
+
+ tit = dfs_cache_get_tgt_iterator(tl);
+ if (!tit) {
+ rc = -ENOENT;
goto out;
}

- isroot = ref.server_type == DFS_TYPE_ROOT;
- free_dfs_info_param(&ref);
-
- extract_unc_hostname(server->hostname, &tcp_host, &tcp_host_len);
-
- for (it = dfs_cache_get_tgt_iterator(&tl); it; it = dfs_cache_get_next_tgt(&tl, it)) {
- bool target_match;
+ /* Try to tree connect to all dfs targets */
+ for (; tit; tit = dfs_cache_get_next_tgt(tl, tit)) {
+ const char *target = dfs_cache_get_tgt_name(tit);
+ struct dfs_cache_tgt_list ntl = DFS_CACHE_TGT_LIST_INIT(ntl);

kfree(share);
kfree(prefix);
- share = NULL;
- prefix = NULL;

- rc = dfs_cache_get_tgt_share(tcon->dfs_path + 1, it, &share, &prefix);
+ /* Check if share matches with tcp ses */
+ rc = dfs_cache_get_tgt_share(server->current_fullpath + 1, tit, &share, &prefix);
if (rc) {
- cifs_dbg(VFS, "%s: failed to parse target share %d\n",
- __func__, rc);
- continue;
+ cifs_dbg(VFS, "%s: failed to parse target share: %d\n", __func__, rc);
+ break;
}

- extract_unc_hostname(share, &dfs_host, &dfs_host_len);
-
- if (dfs_host_len != tcp_host_len
- || strncasecmp(dfs_host, tcp_host, dfs_host_len) != 0) {
- cifs_dbg(FYI, "%s: %.*s doesn't match %.*s\n", __func__, (int)dfs_host_len,
- dfs_host, (int)tcp_host_len, tcp_host);
+ rc = target_share_matches_server(server, tcp_host, tcp_host_len, share,
+ &target_match);
+ if (rc)
+ break;
+ if (!target_match) {
+ rc = -EHOSTUNREACH;
+ continue;
+ }

- rc = match_target_ip(server, dfs_host, dfs_host_len, &target_match);
- if (rc) {
- cifs_dbg(VFS, "%s: failed to match target ip: %d\n", __func__, rc);
+ if (ipc->need_reconnect) {
+ scnprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$", server->hostname);
+ rc = ops->tree_connect(xid, ipc->ses, tree, ipc, cifs_sb->local_nls);
+ if (rc)
break;
- }
+ }

- if (!target_match) {
- cifs_dbg(FYI, "%s: skipping target\n", __func__);
+ scnprintf(tree, MAX_TREE_SIZE, "\\%s", share);
+ if (!islink) {
+ rc = ops->tree_connect(xid, tcon->ses, tree, tcon, cifs_sb->local_nls);
+ break;
+ }
+ /*
+ * If no dfs referrals were returned from link target, then just do a TREE_CONNECT
+ * to it. Otherwise, cache the dfs referral and then mark current tcp ses for
+ * reconnect so either the demultiplex thread or the echo worker will reconnect to
+ * newly resolved target.
+ */
+ if (dfs_cache_find(xid, tcon->ses, cifs_sb->local_nls, cifs_remap(cifs_sb), target,
+ ref, &ntl)) {
+ rc = ops->tree_connect(xid, tcon->ses, tree, tcon, cifs_sb->local_nls);
+ if (rc)
continue;
- }
+ rc = dfs_cache_noreq_update_tgthint(server->current_fullpath + 1, tit);
+ if (!rc)
+ rc = cifs_update_super_prepath(cifs_sb, prefix);
+ break;
}
+ /* Target is another dfs share */
+ rc = update_server_fullpath(server, cifs_sb, target);
+ dfs_cache_free_tgts(tl);

- if (tcon->ipc) {
- scnprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$", share);
- rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);
+ if (!rc) {
+ rc = -EREMOTE;
+ list_replace_init(&ntl.tl_list, &tl->tl_list);
} else {
- scnprintf(tree, MAX_TREE_SIZE, "\\%s", share);
- rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);
- /* Only handle prefix paths of DFS link targets */
- if (!rc && !isroot) {
- rc = update_super_prepath(tcon, prefix);
- break;
- }
+ dfs_cache_free_tgts(&ntl);
+ free_dfs_info_param(ref);
}
- if (rc == -EREMOTE)
- break;
+ break;
}

+out:
kfree(share);
kfree(prefix);

- if (!rc) {
- if (it)
- rc = dfs_cache_noreq_update_tgthint(tcon->dfs_path + 1, it);
- else
- rc = -ENOENT;
+ return rc;
+}
+
+int tree_connect_dfs_target(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb, char *tree,
+ struct dfs_cache_tgt_list *tl, struct dfs_info3_param *ref)
+{
+ int rc;
+ int num_links = 0;
+ struct TCP_Server_Info *server = tcon->ses->server;
+
+ do {
+ rc = __tree_connect_dfs_target(xid, tcon, cifs_sb, tree, tl, ref);
+ if (!rc || rc != -EREMOTE)
+ break;
+ } while (rc = -ELOOP, ++num_links < MAX_NESTED_LINKS);
+ /*
+ * If we couldn't tree connect to any targets from last referral path, then retry from
+ * original referral path.
+ */
+ if (rc && server->current_fullpath != server->origin_fullpath) {
+ server->current_fullpath = server->origin_fullpath;
+ mark_tcon_tcp_ses_for_reconnect(tcon);
}
- dfs_cache_free_tgts(&tl);
+
+ dfs_cache_free_tgts(tl);
+ return rc;
+}
+
+int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const struct nls_table *nlsc)
+{
+ int rc;
+ struct TCP_Server_Info *server = tcon->ses->server;
+ const struct smb_version_operations *ops = server->ops;
+ struct super_block *sb = NULL;
+ struct cifs_sb_info *cifs_sb;
+ struct dfs_cache_tgt_list tl = DFS_CACHE_TGT_LIST_INIT(tl);
+ char *tree;
+ struct dfs_info3_param ref = {0};
+
+ tree = kzalloc(MAX_TREE_SIZE, GFP_KERNEL);
+ if (!tree)
+ return -ENOMEM;
+
+ if (tcon->ipc) {
+ scnprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$", server->hostname);
+ rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);
+ goto out;
+ }
+
+ sb = cifs_get_tcp_super(server);
+ if (IS_ERR(sb)) {
+ rc = PTR_ERR(sb);
+ cifs_dbg(VFS, "%s: could not find superblock: %d\n", __func__, rc);
+ goto out;
+ }
+
+ cifs_sb = CIFS_SB(sb);
+
+ /* If it is not dfs or there was no cached dfs referral, then reconnect to same share */
+ if (!server->current_fullpath ||
+ dfs_cache_noreq_find(server->current_fullpath + 1, &ref, &tl)) {
+ rc = ops->tree_connect(xid, tcon->ses, tcon->treeName, tcon, cifs_sb->local_nls);
+ goto out;
+ }
+
+ rc = tree_connect_dfs_target(xid, tcon, cifs_sb, tree, &tl, &ref);
+
out:
kfree(tree);
+ cifs_put_tcp_super(sb);
+
return rc;
}
#else
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c
index 283745592844..1f3efa7821a0 100644
--- a/fs/cifs/dfs_cache.c
+++ b/fs/cifs/dfs_cache.c
@@ -1364,9 +1364,9 @@ static void mark_for_reconnect_if_needed(struct cifs_tcon *tcon, struct dfs_cach
}

/* Refresh dfs referral of tcon and mark it for reconnect if needed */
-static int refresh_tcon(struct cifs_ses **sessions, struct cifs_tcon *tcon, bool force_refresh)
+static int __refresh_tcon(const char *path, struct cifs_ses **sessions, struct cifs_tcon *tcon,
+ bool force_refresh)
{
- const char *path = tcon->dfs_path + 1;
struct cifs_ses *ses;
struct cache_entry *ce;
struct dfs_info3_param *refs = NULL;
@@ -1422,6 +1422,20 @@ static int refresh_tcon(struct cifs_ses **sessions, struct cifs_tcon *tcon, bool
return rc;
}

+static int refresh_tcon(struct cifs_ses **sessions, struct cifs_tcon *tcon, bool force_refresh)
+{
+ struct TCP_Server_Info *server = tcon->ses->server;
+
+ mutex_lock(&server->refpath_lock);
+ if (strcasecmp(server->leaf_fullpath, server->origin_fullpath))
+ __refresh_tcon(server->leaf_fullpath + 1, sessions, tcon, force_refresh);
+ mutex_unlock(&server->refpath_lock);
+
+ __refresh_tcon(server->origin_fullpath + 1, sessions, tcon, force_refresh);
+
+ return 0;
+}
+
/**
* dfs_cache_remount_fs - remount a DFS share
*
@@ -1435,6 +1449,7 @@ static int refresh_tcon(struct cifs_ses **sessions, struct cifs_tcon *tcon, bool
int dfs_cache_remount_fs(struct cifs_sb_info *cifs_sb)
{
struct cifs_tcon *tcon;
+ struct TCP_Server_Info *server;
struct mount_group *mg;
struct cifs_ses *sessions[CACHE_MAX_ENTRIES + 1] = {NULL};
int rc;
@@ -1443,13 +1458,15 @@ int dfs_cache_remount_fs(struct cifs_sb_info *cifs_sb)
return -EINVAL;

tcon = cifs_sb_master_tcon(cifs_sb);
- if (!tcon->dfs_path) {
- cifs_dbg(FYI, "%s: not a dfs tcon\n", __func__);
+ server = tcon->ses->server;
+
+ if (!server->origin_fullpath) {
+ cifs_dbg(FYI, "%s: not a dfs mount\n", __func__);
return 0;
}

if (uuid_is_null(&cifs_sb->dfs_mount_id)) {
- cifs_dbg(FYI, "%s: tcon has no dfs mount group id\n", __func__);
+ cifs_dbg(FYI, "%s: no dfs mount group id\n", __func__);
return -EINVAL;
}

@@ -1457,7 +1474,7 @@ int dfs_cache_remount_fs(struct cifs_sb_info *cifs_sb)
mg = find_mount_group_locked(&cifs_sb->dfs_mount_id);
if (IS_ERR(mg)) {
mutex_unlock(&mount_group_list_lock);
- cifs_dbg(FYI, "%s: tcon has ipc session to refresh referral\n", __func__);
+ cifs_dbg(FYI, "%s: no ipc session for refreshing referral\n", __func__);
return PTR_ERR(mg);
}
kref_get(&mg->refcount);
@@ -1498,9 +1515,12 @@ static void refresh_mounts(struct cifs_ses **sessions)

spin_lock(&cifs_tcp_ses_lock);
list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) {
+ if (!server->is_dfs_conn)
+ continue;
+
list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
- if (tcon->dfs_path) {
+ if (!tcon->ipc && !tcon->need_reconnect) {
tcon->tc_count++;
list_add_tail(&tcon->ulist, &tcons);
}
@@ -1510,8 +1530,16 @@ static void refresh_mounts(struct cifs_ses **sessions)
spin_unlock(&cifs_tcp_ses_lock);

list_for_each_entry_safe(tcon, ntcon, &tcons, ulist) {
+ struct TCP_Server_Info *server = tcon->ses->server;
+
list_del_init(&tcon->ulist);
- refresh_tcon(sessions, tcon, false);
+
+ mutex_lock(&server->refpath_lock);
+ if (strcasecmp(server->leaf_fullpath, server->origin_fullpath))
+ __refresh_tcon(server->leaf_fullpath + 1, sessions, tcon, false);
+ mutex_unlock(&server->refpath_lock);
+
+ __refresh_tcon(server->origin_fullpath + 1, sessions, tcon, false);
cifs_put_tcon(tcon);
}
}
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 699f676ded47..94143d7f58c7 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -139,9 +139,6 @@ tconInfoFree(struct cifs_tcon *buf_to_free)
kfree(buf_to_free->nativeFileSystem);
kfree_sensitive(buf_to_free->password);
kfree(buf_to_free->crfid.fid);
-#ifdef CONFIG_CIFS_DFS_UPCALL
- kfree(buf_to_free->dfs_path);
-#endif
kfree(buf_to_free);
}

@@ -1299,69 +1296,20 @@ int match_target_ip(struct TCP_Server_Info *server,
return rc;
}

-static void tcon_super_cb(struct super_block *sb, void *arg)
+int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix)
{
- struct super_cb_data *sd = arg;
- struct cifs_tcon *tcon = sd->data;
- struct cifs_sb_info *cifs_sb;
-
- if (sd->sb)
- return;
-
- cifs_sb = CIFS_SB(sb);
- if (tcon->dfs_path && cifs_sb->origin_fullpath &&
- !strcasecmp(tcon->dfs_path, cifs_sb->origin_fullpath))
- sd->sb = sb;
-}
-
-static inline struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon)
-{
- return __cifs_get_super(tcon_super_cb, tcon);
-}
-
-static inline void cifs_put_tcon_super(struct super_block *sb)
-{
- __cifs_put_super(sb);
-}
-#else
-static inline struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon)
-{
- return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void cifs_put_tcon_super(struct super_block *sb)
-{
-}
-#endif
-
-int update_super_prepath(struct cifs_tcon *tcon, char *prefix)
-{
- struct super_block *sb;
- struct cifs_sb_info *cifs_sb;
- int rc = 0;
-
- sb = cifs_get_tcon_super(tcon);
- if (IS_ERR(sb))
- return PTR_ERR(sb);
-
- cifs_sb = CIFS_SB(sb);
-
kfree(cifs_sb->prepath);

if (prefix && *prefix) {
cifs_sb->prepath = kstrdup(prefix, GFP_ATOMIC);
- if (!cifs_sb->prepath) {
- rc = -ENOMEM;
- goto out;
- }
+ if (!cifs_sb->prepath)
+ return -ENOMEM;

convert_delimiter(cifs_sb->prepath, CIFS_DIR_SEP(cifs_sb));
} else
cifs_sb->prepath = NULL;

cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
-
-out:
- cifs_put_tcon_super(sb);
- return rc;
+ return 0;
}
+#endif
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 53e87466e3b2..5e6526c201fe 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -2869,6 +2869,7 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses,
struct fsctl_get_dfs_referral_req *dfs_req = NULL;
struct get_dfs_referral_rsp *dfs_rsp = NULL;
u32 dfs_req_size = 0, dfs_rsp_size = 0;
+ int retry_count = 0;

cifs_dbg(FYI, "%s: path: %s\n", __func__, search_name);

@@ -2920,11 +2921,14 @@ smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses,
true /* is_fsctl */,
(char *)dfs_req, dfs_req_size, CIFSMaxBufSize,
(char **)&dfs_rsp, &dfs_rsp_size);
- } while (rc == -EAGAIN);
+ if (!is_retryable_error(rc))
+ break;
+ usleep_range(512, 2048);
+ } while (++retry_count < 5);

if (rc) {
- if ((rc != -ENOENT) && (rc != -EOPNOTSUPP))
- cifs_tcon_dbg(VFS, "ioctl error in %s rc=%d\n", __func__, rc);
+ if (!is_retryable_error(rc) && rc != -ENOENT && rc != -EOPNOTSUPP)
+ cifs_tcon_dbg(VFS, "%s: ioctl error: rc=%d\n", __func__, rc);
goto out;
}

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 8aa0372141f5..c0ea2813978b 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -156,7 +156,11 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
if (tcon == NULL)
return 0;

- if (smb2_command == SMB2_TREE_CONNECT)
+ /*
+ * Need to also skip SMB2_IOCTL because it is used for checking nested dfs links in
+ * cifs_tree_connect().
+ */
+ if (smb2_command == SMB2_TREE_CONNECT || smb2_command == SMB2_IOCTL)
return 0;

if (tcon->tidStatus == CifsExiting) {
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 725607520e84..9e09caaf9b0b 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -5190,6 +5190,7 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
* and it is decreased till we reach start.
*/
again:
+ ret = 0;
if (SHIFT == SHIFT_LEFT)
iterator = &start;
else
@@ -5233,14 +5234,21 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
ext4_ext_get_actual_len(extent);
} else {
extent = EXT_FIRST_EXTENT(path[depth].p_hdr);
- if (le32_to_cpu(extent->ee_block) > 0)
+ if (le32_to_cpu(extent->ee_block) > start)
*iterator = le32_to_cpu(extent->ee_block) - 1;
- else
- /* Beginning is reached, end of the loop */
+ else if (le32_to_cpu(extent->ee_block) == start)
iterator = NULL;
- /* Update path extent in case we need to stop */
- while (le32_to_cpu(extent->ee_block) < start)
+ else {
+ extent = EXT_LAST_EXTENT(path[depth].p_hdr);
+ while (le32_to_cpu(extent->ee_block) >= start)
+ extent--;
+
+ if (extent == EXT_LAST_EXTENT(path[depth].p_hdr))
+ break;
+
extent++;
+ iterator = NULL;
+ }
path[depth].p_ext = extent;
}
ret = ext4_ext_shift_path_extents(path, shift, inode,
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 2a27f0256fa3..f4a5a0c2858a 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1739,18 +1739,26 @@ static int writeback_single_inode(struct inode *inode,
wb = inode_to_wb_and_lock_list(inode);
spin_lock(&inode->i_lock);
/*
- * If the inode is now fully clean, then it can be safely removed from
- * its writeback list (if any). Otherwise the flusher threads are
- * responsible for the writeback lists.
+ * If the inode is freeing, its i_io_list shoudn't be updated
+ * as it can be finally deleted at this moment.
*/
- if (!(inode->i_state & I_DIRTY_ALL))
- inode_cgwb_move_to_attached(inode, wb);
- else if (!(inode->i_state & I_SYNC_QUEUED)) {
- if ((inode->i_state & I_DIRTY))
- redirty_tail_locked(inode, wb);
- else if (inode->i_state & I_DIRTY_TIME) {
- inode->dirtied_when = jiffies;
- inode_io_list_move_locked(inode, wb, &wb->b_dirty_time);
+ if (!(inode->i_state & I_FREEING)) {
+ /*
+ * If the inode is now fully clean, then it can be safely
+ * removed from its writeback list (if any). Otherwise the
+ * flusher threads are responsible for the writeback lists.
+ */
+ if (!(inode->i_state & I_DIRTY_ALL))
+ inode_cgwb_move_to_attached(inode, wb);
+ else if (!(inode->i_state & I_SYNC_QUEUED)) {
+ if ((inode->i_state & I_DIRTY))
+ redirty_tail_locked(inode, wb);
+ else if (inode->i_state & I_DIRTY_TIME) {
+ inode->dirtied_when = jiffies;
+ inode_io_list_move_locked(inode,
+ wb,
+ &wb->b_dirty_time);
+ }
}
}

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 307e7dae3ab6..cc95a1c37644 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2937,11 +2937,9 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
.mode = mode
};
int err;
- bool lock_inode = !(mode & FALLOC_FL_KEEP_SIZE) ||
- (mode & (FALLOC_FL_PUNCH_HOLE |
- FALLOC_FL_ZERO_RANGE));
-
- bool block_faults = FUSE_IS_DAX(inode) && lock_inode;
+ bool block_faults = FUSE_IS_DAX(inode) &&
+ (!(mode & FALLOC_FL_KEEP_SIZE) ||
+ (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_ZERO_RANGE)));

if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
FALLOC_FL_ZERO_RANGE))
@@ -2950,22 +2948,20 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
if (fm->fc->no_fallocate)
return -EOPNOTSUPP;

- if (lock_inode) {
- inode_lock(inode);
- if (block_faults) {
- filemap_invalidate_lock(inode->i_mapping);
- err = fuse_dax_break_layouts(inode, 0, 0);
- if (err)
- goto out;
- }
+ inode_lock(inode);
+ if (block_faults) {
+ filemap_invalidate_lock(inode->i_mapping);
+ err = fuse_dax_break_layouts(inode, 0, 0);
+ if (err)
+ goto out;
+ }

- if (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_ZERO_RANGE)) {
- loff_t endbyte = offset + length - 1;
+ if (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_ZERO_RANGE)) {
+ loff_t endbyte = offset + length - 1;

- err = fuse_writeback_range(inode, offset, endbyte);
- if (err)
- goto out;
- }
+ err = fuse_writeback_range(inode, offset, endbyte);
+ if (err)
+ goto out;
}

if (!(mode & FALLOC_FL_KEEP_SIZE) &&
@@ -3015,8 +3011,7 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
if (block_faults)
filemap_invalidate_unlock(inode->i_mapping);

- if (lock_inode)
- inode_unlock(inode);
+ inode_unlock(inode);

fuse_flush_time_update(inode);

diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index 63722475e17e..51f4cb060231 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -495,14 +495,22 @@ void nilfs_sufile_do_free(struct inode *sufile, __u64 segnum,
int nilfs_sufile_mark_dirty(struct inode *sufile, __u64 segnum)
{
struct buffer_head *bh;
+ void *kaddr;
+ struct nilfs_segment_usage *su;
int ret;

+ down_write(&NILFS_MDT(sufile)->mi_sem);
ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, 0, &bh);
if (!ret) {
mark_buffer_dirty(bh);
nilfs_mdt_mark_dirty(sufile);
+ kaddr = kmap_atomic(bh->b_page);
+ su = nilfs_sufile_block_get_segment_usage(sufile, segnum, bh, kaddr);
+ nilfs_segment_usage_set_dirty(su);
+ kunmap_atomic(kaddr);
brelse(bh);
}
+ up_write(&NILFS_MDT(sufile)->mi_sem);
return ret;
}

diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index f8feaed0b54d..85a98590b6ef 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -448,14 +448,22 @@ static void __zonefs_io_error(struct inode *inode, bool write)
struct super_block *sb = inode->i_sb;
struct zonefs_sb_info *sbi = ZONEFS_SB(sb);
unsigned int noio_flag;
- unsigned int nr_zones =
- zi->i_zone_size >> (sbi->s_zone_sectors_shift + SECTOR_SHIFT);
+ unsigned int nr_zones = 1;
struct zonefs_ioerr_data err = {
.inode = inode,
.write = write,
};
int ret;

+ /*
+ * The only files that have more than one zone are conventional zone
+ * files with aggregated conventional zones, for which the inode zone
+ * size is always larger than the device zone size.
+ */
+ if (zi->i_zone_size > bdev_zone_sectors(sb->s_bdev))
+ nr_zones = zi->i_zone_size >>
+ (sbi->s_zone_sectors_shift + SECTOR_SHIFT);
+
/*
* Memory allocations in blkdev_report_zones() can trigger a memory
* reclaim which may in turn cause a recursion into zonefs as well as
@@ -1354,6 +1362,14 @@ static int zonefs_init_file_inode(struct inode *inode, struct blk_zone *zone,
zi->i_ztype = type;
zi->i_zsector = zone->start;
zi->i_zone_size = zone->len << SECTOR_SHIFT;
+ if (zi->i_zone_size > bdev_zone_sectors(sb->s_bdev) << SECTOR_SHIFT &&
+ !(sbi->s_features & ZONEFS_F_AGGRCNV)) {
+ zonefs_err(sb,
+ "zone size %llu doesn't match device's zone sectors %llu\n",
+ zi->i_zone_size,
+ bdev_zone_sectors(sb->s_bdev) << SECTOR_SHIFT);
+ return -EINVAL;
+ }

zi->i_max_size = min_t(loff_t, MAX_LFS_FILESIZE,
zone->capacity << SECTOR_SHIFT);
@@ -1396,11 +1412,11 @@ static struct dentry *zonefs_create_inode(struct dentry *parent,
struct inode *dir = d_inode(parent);
struct dentry *dentry;
struct inode *inode;
- int ret;
+ int ret = -ENOMEM;

dentry = d_alloc_name(parent, name);
if (!dentry)
- return NULL;
+ return ERR_PTR(ret);

inode = new_inode(parent->d_sb);
if (!inode)
@@ -1425,7 +1441,7 @@ static struct dentry *zonefs_create_inode(struct dentry *parent,
dput:
dput(dentry);

- return NULL;
+ return ERR_PTR(ret);
}

struct zonefs_zone_data {
@@ -1445,7 +1461,7 @@ static int zonefs_create_zgroup(struct zonefs_zone_data *zd,
struct blk_zone *zone, *next, *end;
const char *zgroup_name;
char *file_name;
- struct dentry *dir;
+ struct dentry *dir, *dent;
unsigned int n = 0;
int ret;

@@ -1463,8 +1479,8 @@ static int zonefs_create_zgroup(struct zonefs_zone_data *zd,
zgroup_name = "seq";

dir = zonefs_create_inode(sb->s_root, zgroup_name, NULL, type);
- if (!dir) {
- ret = -ENOMEM;
+ if (IS_ERR(dir)) {
+ ret = PTR_ERR(dir);
goto free;
}

@@ -1510,8 +1526,9 @@ static int zonefs_create_zgroup(struct zonefs_zone_data *zd,
* Use the file number within its group as file name.
*/
snprintf(file_name, ZONEFS_NAME_MAX - 1, "%u", n);
- if (!zonefs_create_inode(dir, file_name, zone, type)) {
- ret = -ENOMEM;
+ dent = zonefs_create_inode(dir, file_name, zone, type);
+ if (IS_ERR(dent)) {
+ ret = PTR_ERR(dent);
goto free;
}

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 86fa187f6d65..d5b6b1550d59 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -254,6 +254,7 @@ struct uart_port {
struct attribute_group *attr_group; /* port specific attributes */
const struct attribute_group **tty_groups; /* all attributes (serial core use only) */
struct serial_rs485 rs485;
+ const struct serial_rs485 *rs485_supported; /* Supported mask for serial_rs485 */
struct gpio_desc *rs485_term_gpio; /* enable RS485 bus termination */
struct serial_iso7816 iso7816;
void *private_data; /* generic platform data pointer */
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index 1c714336b863..221856f2d295 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -583,7 +583,7 @@ TRACE_EVENT(rxrpc_client,
TP_fast_assign(
__entry->conn = conn ? conn->debug_id : 0;
__entry->channel = channel;
- __entry->usage = conn ? atomic_read(&conn->usage) : -2;
+ __entry->usage = conn ? refcount_read(&conn->ref) : -2;
__entry->op = op;
__entry->cid = conn ? conn->proto.cid : 0;
),
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index daa481729e9b..27799acd0e5e 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -182,7 +182,7 @@
#define AUDIT_MAX_KEY_LEN 256
#define AUDIT_BITMASK_SIZE 64
#define AUDIT_WORD(nr) ((__u32)((nr)/32))
-#define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32))
+#define AUDIT_BIT(nr) (1U << ((nr) - AUDIT_WORD(nr)*32))

#define AUDIT_SYSCALL_CLASSES 16
#define AUDIT_CLASS_DIR_WRITE 0
diff --git a/init/Kconfig b/init/Kconfig
index d19ed66aba3b..a4144393717b 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -80,7 +80,7 @@ config CC_HAS_ASM_GOTO_OUTPUT
config CC_HAS_ASM_GOTO_TIED_OUTPUT
depends on CC_HAS_ASM_GOTO_OUTPUT
# Detect buggy gcc and clang, fixed in gcc-11 clang-14.
- def_bool $(success,echo 'int foo(int *x) { asm goto (".long (%l[bar]) - .\n": "+m"(*x) ::: bar); return *x; bar: return 0; }' | $CC -x c - -c -o /dev/null)
+ def_bool $(success,echo 'int foo(int *x) { asm goto (".long (%l[bar]) - .": "+m"(*x) ::: bar); return *x; bar: return 0; }' | $CC -x c - -c -o /dev/null)

config TOOLS_SUPPORT_RELR
def_bool $(success,env "CC=$(CC)" "LD=$(LD)" "NM=$(NM)" "OBJCOPY=$(OBJCOPY)" $(srctree)/scripts/tools-support-relr.sh)
diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c
index cbb0bed958ab..7670a811a565 100644
--- a/kernel/gcov/clang.c
+++ b/kernel/gcov/clang.c
@@ -280,6 +280,8 @@ void gcov_info_add(struct gcov_info *dst, struct gcov_info *src)

for (i = 0; i < sfn_ptr->num_counters; i++)
dfn_ptr->counters[i] += sfn_ptr->counters[i];
+
+ sfn_ptr = list_next_entry(sfn_ptr, head);
}
}

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 0c3c26fb054f..9862372e0f01 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -222,11 +222,16 @@ int irq_do_set_affinity(struct irq_data *data, const struct cpumask *mask,
{
struct irq_desc *desc = irq_data_to_desc(data);
struct irq_chip *chip = irq_data_get_irq_chip(data);
+ const struct cpumask *prog_mask;
int ret;

+ static DEFINE_RAW_SPINLOCK(tmp_mask_lock);
+ static struct cpumask tmp_mask;
+
if (!chip || !chip->irq_set_affinity)
return -EINVAL;

+ raw_spin_lock(&tmp_mask_lock);
/*
* If this is a managed interrupt and housekeeping is enabled on
* it check whether the requested affinity mask intersects with
@@ -248,24 +253,34 @@ int irq_do_set_affinity(struct irq_data *data, const struct cpumask *mask,
*/
if (irqd_affinity_is_managed(data) &&
housekeeping_enabled(HK_FLAG_MANAGED_IRQ)) {
- const struct cpumask *hk_mask, *prog_mask;
-
- static DEFINE_RAW_SPINLOCK(tmp_mask_lock);
- static struct cpumask tmp_mask;
+ const struct cpumask *hk_mask;

hk_mask = housekeeping_cpumask(HK_FLAG_MANAGED_IRQ);

- raw_spin_lock(&tmp_mask_lock);
cpumask_and(&tmp_mask, mask, hk_mask);
if (!cpumask_intersects(&tmp_mask, cpu_online_mask))
prog_mask = mask;
else
prog_mask = &tmp_mask;
- ret = chip->irq_set_affinity(data, prog_mask, force);
- raw_spin_unlock(&tmp_mask_lock);
} else {
- ret = chip->irq_set_affinity(data, mask, force);
+ prog_mask = mask;
}
+
+ /*
+ * Make sure we only provide online CPUs to the irqchip,
+ * unless we are being asked to force the affinity (in which
+ * case we do as we are told).
+ */
+ cpumask_and(&tmp_mask, prog_mask, cpu_online_mask);
+ if (!force && !cpumask_empty(&tmp_mask))
+ ret = chip->irq_set_affinity(data, &tmp_mask, force);
+ else if (force)
+ ret = chip->irq_set_affinity(data, mask, force);
+ else
+ ret = -EINVAL;
+
+ raw_spin_unlock(&tmp_mask_lock);
+
switch (ret) {
case IRQ_SET_MASK_OK:
case IRQ_SET_MASK_OK_DONE:
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 7f350ae59c5f..d75586dc584f 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -596,6 +596,13 @@ int __msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
irqd_clr_can_reserve(irq_data);
if (domain->flags & IRQ_DOMAIN_MSI_NOMASK_QUIRK)
irqd_set_msi_nomask_quirk(irq_data);
+ if ((info->flags & MSI_FLAG_ACTIVATE_EARLY) &&
+ irqd_affinity_is_managed(irq_data) &&
+ !cpumask_intersects(irq_data_get_affinity_mask(irq_data),
+ cpu_online_mask)) {
+ irqd_set_managed_shutdown(irq_data);
+ continue;
+ }
}
ret = irq_domain_activate_irq(irq_data, can_reserve);
if (ret)
diff --git a/lib/vdso/Makefile b/lib/vdso/Makefile
index c415a685d61b..e814061d6aa0 100644
--- a/lib/vdso/Makefile
+++ b/lib/vdso/Makefile
@@ -17,6 +17,6 @@ $(error ARCH_REL_TYPE_ABS is not set)
endif

quiet_cmd_vdso_check = VDSOCHK $@
- cmd_vdso_check = if $(OBJDUMP) -R $@ | egrep -h "$(ARCH_REL_TYPE_ABS)"; \
+ cmd_vdso_check = if $(OBJDUMP) -R $@ | grep -E -h "$(ARCH_REL_TYPE_ABS)"; \
then (echo >&2 "$@: dynamic relocations are not supported"; \
rm -f $@; /bin/false); fi
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 74296c2d1fed..1b63d6155416 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2791,8 +2791,8 @@ static void shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
enum lru_list lru;
unsigned long nr_reclaimed = 0;
unsigned long nr_to_reclaim = sc->nr_to_reclaim;
+ bool proportional_reclaim;
struct blk_plug plug;
- bool scan_adjusted;

get_scan_count(lruvec, sc, nr);

@@ -2810,8 +2810,8 @@ static void shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
* abort proportional reclaim if either the file or anon lru has already
* dropped to zero at the first pass.
*/
- scan_adjusted = (!cgroup_reclaim(sc) && !current_is_kswapd() &&
- sc->priority == DEF_PRIORITY);
+ proportional_reclaim = (!cgroup_reclaim(sc) && !current_is_kswapd() &&
+ sc->priority == DEF_PRIORITY);

blk_start_plug(&plug);
while (nr[LRU_INACTIVE_ANON] || nr[LRU_ACTIVE_FILE] ||
@@ -2831,7 +2831,7 @@ static void shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)

cond_resched();

- if (nr_reclaimed < nr_to_reclaim || scan_adjusted)
+ if (nr_reclaimed < nr_to_reclaim || proportional_reclaim)
continue;

/*
@@ -2882,8 +2882,6 @@ static void shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
nr_scanned = targets[lru] - nr[lru];
nr[lru] = targets[lru] * (100 - percentage) / 100;
nr[lru] -= min(nr[lru], nr_scanned);
-
- scan_adjusted = true;
}
blk_finish_plug(&plug);
sc->nr_reclaimed += nr_reclaimed;
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index a8c1f742148c..31f2026514f3 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -204,9 +204,11 @@ static void p9_conn_cancel(struct p9_conn *m, int err)

list_for_each_entry_safe(req, rtmp, &m->req_list, req_list) {
list_move(&req->req_list, &cancel_list);
+ req->status = REQ_STATUS_ERROR;
}
list_for_each_entry_safe(req, rtmp, &m->unsent_req_list, req_list) {
list_move(&req->req_list, &cancel_list);
+ req->status = REQ_STATUS_ERROR;
}

spin_unlock(&m->req_lock);
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 1c34e2266578..1d230f041386 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -270,7 +270,7 @@ skb_flow_dissect_ct(const struct sk_buff *skb,
key->ct_zone = ct->zone.id;
#endif
#if IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)
- key->ct_mark = ct->mark;
+ key->ct_mark = READ_ONCE(ct->mark);
#endif

cl = nf_ct_labels_find(ct);
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 0ea29270d7e5..5bcfa1e9a941 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -137,6 +137,8 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
* This unhashes the socket and releases the local port, if necessary.
*/
dccp_set_state(sk, DCCP_CLOSED);
+ if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK))
+ inet_reset_saddr(sk);
ip_rt_put(rt);
sk->sk_route_caps = 0;
inet->inet_dport = 0;
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index fa663518fa0e..071620622e1e 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -967,6 +967,8 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,

late_failure:
dccp_set_state(sk, DCCP_CLOSED);
+ if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK))
+ inet_reset_saddr(sk);
__sk_dst_reset(sk);
failure:
inet->inet_dport = 0;
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 87983e70f03f..23b06063e1a5 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -403,6 +403,16 @@ config INET_IPCOMP

If unsure, say Y.

+config INET_TABLE_PERTURB_ORDER
+ int "INET: Source port perturbation table size (as power of 2)" if EXPERT
+ default 16
+ help
+ Source port perturbation table size (as power of 2) for
+ RFC 6056 3.3.4. Algorithm 4: Double-Hash Port Selection Algorithm.
+
+ The default is almost always what you want.
+ Only change this if you know what you are doing.
+
config INET_XFRM_TUNNEL
tristate
select INET_TUNNEL
diff --git a/net/ipv4/esp4_offload.c b/net/ipv4/esp4_offload.c
index dad5d29a6a8d..2ddba1e2cf22 100644
--- a/net/ipv4/esp4_offload.c
+++ b/net/ipv4/esp4_offload.c
@@ -311,6 +311,9 @@ static int esp_xmit(struct xfrm_state *x, struct sk_buff *skb, netdev_features_
xo->seq.low += skb_shinfo(skb)->gso_segs;
}

+ if (xo->seq.low < seq)
+ xo->seq.hi++;
+
esp.seqno = cpu_to_be64(seq + ((u64)xo->seq.hi << 32));

ip_hdr(skb)->tot_len = htons(skb->len);
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 19c6e7b93d3d..52f9f69f57b3 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1375,8 +1375,10 @@ int fib_table_insert(struct net *net, struct fib_table *tb,

/* The alias was already inserted, so the node must exist. */
l = l ? l : fib_find_node(t, &tp, key);
- if (WARN_ON_ONCE(!l))
+ if (WARN_ON_ONCE(!l)) {
+ err = -ENOENT;
goto out_free_new_fa;
+ }

if (fib_find_alias(&l->leaf, new_fa->fa_slen, 0, 0, tb->tb_id, true) ==
new_fa) {
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index ce6a3873f89e..0d378da4b1b1 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -721,13 +721,13 @@ EXPORT_SYMBOL_GPL(inet_unhash);
* Note that we use 32bit integers (vs RFC 'short integers')
* because 2^16 is not a multiple of num_ephemeral and this
* property might be used by clever attacker.
+ *
* RFC claims using TABLE_LENGTH=10 buckets gives an improvement, though
- * attacks were since demonstrated, thus we use 65536 instead to really
- * give more isolation and privacy, at the expense of 256kB of kernel
- * memory.
+ * attacks were since demonstrated, thus we use 65536 by default instead
+ * to really give more isolation and privacy, at the expense of 256kB
+ * of kernel memory.
*/
-#define INET_TABLE_PERTURB_SHIFT 16
-#define INET_TABLE_PERTURB_SIZE (1 << INET_TABLE_PERTURB_SHIFT)
+#define INET_TABLE_PERTURB_SIZE (1 << CONFIG_INET_TABLE_PERTURB_ORDER)
static u32 *table_perturb;

int __inet_hash_connect(struct inet_timewait_death_row *death_row,
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 459d7e630cb0..124bf8fdf924 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -364,6 +364,11 @@ static int ip_rcv_finish_core(struct net *net, struct sock *sk,
iph->tos, dev);
if (unlikely(err))
goto drop_error;
+ } else {
+ struct in_device *in_dev = __in_dev_get_rcu(dev);
+
+ if (in_dev && IN_DEV_ORCONF(in_dev, NOPOLICY))
+ IPCB(skb)->flags |= IPSKB_NOPOLICY;
}

#ifdef CONFIG_IP_ROUTE_CLASSID
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index b518f20c9a24..34737b1d6526 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -435,7 +435,7 @@ clusterip_tg(struct sk_buff *skb, const struct xt_action_param *par)

switch (ctinfo) {
case IP_CT_NEW:
- ct->mark = hash;
+ WRITE_ONCE(ct->mark, hash);
break;
case IP_CT_RELATED:
case IP_CT_RELATED_REPLY:
@@ -452,7 +452,7 @@ clusterip_tg(struct sk_buff *skb, const struct xt_action_param *par)
#ifdef DEBUG
nf_ct_dump_tuple_ip(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
#endif
- pr_debug("hash=%u ct_hash=%u ", hash, ct->mark);
+ pr_debug("hash=%u ct_hash=%u ", hash, READ_ONCE(ct->mark));
if (!clusterip_responsible(cipinfo->config, hash)) {
pr_debug("not responsible\n");
return NF_DROP;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 42d4af632495..0e1fbad17dbe 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -324,6 +324,8 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
* if necessary.
*/
tcp_set_state(sk, TCP_CLOSE);
+ if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK))
+ inet_reset_saddr(sk);
ip_rt_put(rt);
sk->sk_route_caps = 0;
inet->inet_dport = 0;
diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c
index 302170882382..4cc19acfc369 100644
--- a/net/ipv6/esp6_offload.c
+++ b/net/ipv6/esp6_offload.c
@@ -343,6 +343,9 @@ static int esp6_xmit(struct xfrm_state *x, struct sk_buff *skb, netdev_features
xo->seq.low += skb_shinfo(skb)->gso_segs;
}

+ if (xo->seq.low < seq)
+ xo->seq.hi++;
+
esp.seqno = cpu_to_be64(xo->seq.low + ((u64)xo->seq.hi << 32));

len = skb->len - sizeof(struct ipv6hdr);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 51f4d330e820..93b3e7c247ce 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -339,6 +339,8 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,

late_failure:
tcp_set_state(sk, TCP_CLOSE);
+ if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK))
+ inet_reset_saddr(sk);
failure:
inet->inet_dport = 0;
sk->sk_route_caps = 0;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index af7a4b8b1e9c..247296e3294b 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -289,9 +289,13 @@ int __init xfrm6_init(void)
if (ret)
goto out_state;

- register_pernet_subsys(&xfrm6_net_ops);
+ ret = register_pernet_subsys(&xfrm6_net_ops);
+ if (ret)
+ goto out_protocol;
out:
return ret;
+out_protocol:
+ xfrm6_protocol_fini();
out_state:
xfrm6_state_fini();
out_policy:
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 53cca9019158..1d6ae1df3886 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2905,7 +2905,7 @@ static int count_ah_combs(const struct xfrm_tmpl *t)
break;
if (!aalg->pfkey_supported)
continue;
- if (aalg_tmpl_set(t, aalg) && aalg->available)
+ if (aalg_tmpl_set(t, aalg))
sz += sizeof(struct sadb_comb);
}
return sz + sizeof(struct sadb_prop);
@@ -2923,7 +2923,7 @@ static int count_esp_combs(const struct xfrm_tmpl *t)
if (!ealg->pfkey_supported)
continue;

- if (!(ealg_tmpl_set(t, ealg) && ealg->available))
+ if (!(ealg_tmpl_set(t, ealg)))
continue;

for (k = 1; ; k++) {
@@ -2934,16 +2934,17 @@ static int count_esp_combs(const struct xfrm_tmpl *t)
if (!aalg->pfkey_supported)
continue;

- if (aalg_tmpl_set(t, aalg) && aalg->available)
+ if (aalg_tmpl_set(t, aalg))
sz += sizeof(struct sadb_comb);
}
}
return sz + sizeof(struct sadb_prop);
}

-static void dump_ah_combs(struct sk_buff *skb, const struct xfrm_tmpl *t)
+static int dump_ah_combs(struct sk_buff *skb, const struct xfrm_tmpl *t)
{
struct sadb_prop *p;
+ int sz = 0;
int i;

p = skb_put(skb, sizeof(struct sadb_prop));
@@ -2971,13 +2972,17 @@ static void dump_ah_combs(struct sk_buff *skb, const struct xfrm_tmpl *t)
c->sadb_comb_soft_addtime = 20*60*60;
c->sadb_comb_hard_usetime = 8*60*60;
c->sadb_comb_soft_usetime = 7*60*60;
+ sz += sizeof(*c);
}
}
+
+ return sz + sizeof(*p);
}

-static void dump_esp_combs(struct sk_buff *skb, const struct xfrm_tmpl *t)
+static int dump_esp_combs(struct sk_buff *skb, const struct xfrm_tmpl *t)
{
struct sadb_prop *p;
+ int sz = 0;
int i, k;

p = skb_put(skb, sizeof(struct sadb_prop));
@@ -3019,8 +3024,11 @@ static void dump_esp_combs(struct sk_buff *skb, const struct xfrm_tmpl *t)
c->sadb_comb_soft_addtime = 20*60*60;
c->sadb_comb_hard_usetime = 8*60*60;
c->sadb_comb_soft_usetime = 7*60*60;
+ sz += sizeof(*c);
}
}
+
+ return sz + sizeof(*p);
}

static int key_notify_policy_expire(struct xfrm_policy *xp, const struct km_event *c)
@@ -3150,6 +3158,7 @@ static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct
struct sadb_x_sec_ctx *sec_ctx;
struct xfrm_sec_ctx *xfrm_ctx;
int ctx_size = 0;
+ int alg_size = 0;

sockaddr_size = pfkey_sockaddr_size(x->props.family);
if (!sockaddr_size)
@@ -3161,16 +3170,16 @@ static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct
sizeof(struct sadb_x_policy);

if (x->id.proto == IPPROTO_AH)
- size += count_ah_combs(t);
+ alg_size = count_ah_combs(t);
else if (x->id.proto == IPPROTO_ESP)
- size += count_esp_combs(t);
+ alg_size = count_esp_combs(t);

if ((xfrm_ctx = x->security)) {
ctx_size = PFKEY_ALIGN8(xfrm_ctx->ctx_len);
size += sizeof(struct sadb_x_sec_ctx) + ctx_size;
}

- skb = alloc_skb(size + 16, GFP_ATOMIC);
+ skb = alloc_skb(size + alg_size + 16, GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;

@@ -3224,10 +3233,13 @@ static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct
pol->sadb_x_policy_priority = xp->priority;

/* Set sadb_comb's. */
+ alg_size = 0;
if (x->id.proto == IPPROTO_AH)
- dump_ah_combs(skb, t);
+ alg_size = dump_ah_combs(skb, t);
else if (x->id.proto == IPPROTO_ESP)
- dump_esp_combs(skb, t);
+ alg_size = dump_esp_combs(skb, t);
+
+ hdr->sadb_msg_len += alg_size / 8;

/* security context */
if (xfrm_ctx) {
@@ -3382,7 +3394,7 @@ static int pfkey_send_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr,
hdr->sadb_msg_len = size / sizeof(uint64_t);
hdr->sadb_msg_errno = 0;
hdr->sadb_msg_reserved = 0;
- hdr->sadb_msg_seq = x->km.seq = get_acqseq();
+ hdr->sadb_msg_seq = x->km.seq;
hdr->sadb_msg_pid = 0;

/* SA */
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 5311c3cd3050..9617ff8e2714 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1357,8 +1357,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
ieee80211_led_exit(local);
destroy_workqueue(local->workqueue);
fail_workqueue:
- if (local->wiphy_ciphers_allocated)
+ if (local->wiphy_ciphers_allocated) {
kfree(local->hw.wiphy->cipher_suites);
+ local->wiphy_ciphers_allocated = false;
+ }
kfree(local->int_scan_req);
return result;
}
@@ -1426,8 +1428,10 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
mutex_destroy(&local->iflist_mtx);
mutex_destroy(&local->mtx);

- if (local->wiphy_ciphers_allocated)
+ if (local->wiphy_ciphers_allocated) {
kfree(local->hw.wiphy->cipher_suites);
+ local->wiphy_ciphers_allocated = false;
+ }

idr_for_each(&local->ack_status_frames,
ieee80211_free_ack_frame, NULL);
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index acc1c299f1ae..69d5e1ec6ede 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -710,7 +710,7 @@ int mesh_path_send_to_gates(struct mesh_path *mpath)
void mesh_path_discard_frame(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
- kfree_skb(skb);
+ ieee80211_free_txskb(&sdata->local->hw, skb);
sdata->u.mesh.mshstats.dropped_frames_no_route++;
}

diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 3adc291d9ce1..7499192af586 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -916,7 +916,7 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
#ifdef IP_SET_HASH_WITH_MULTI
if (h->bucketsize >= AHASH_MAX_TUNED)
goto set_full;
- else if (h->bucketsize < multi)
+ else if (h->bucketsize <= multi)
h->bucketsize += AHASH_INIT_SIZE;
#endif
if (n->size >= AHASH_MAX(h)) {
diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c
index dd30c03d5a23..75d556d71652 100644
--- a/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/net/netfilter/ipset/ip_set_hash_ip.c
@@ -151,18 +151,16 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
if (((u64)ip_to - ip + 1) >> (32 - h->netmask) > IPSET_MAX_RANGE)
return -ERANGE;

- if (retried) {
+ if (retried)
ip = ntohl(h->next.ip);
- e.ip = htonl(ip);
- }
for (; ip <= ip_to;) {
+ e.ip = htonl(ip);
ret = adtfn(set, &e, &ext, &ext, flags);
if (ret && !ip_set_eexist(ret, flags))
return ret;

ip += hosts;
- e.ip = htonl(ip);
- if (e.ip == 0)
+ if (ip == 0)
return 0;

ret = 0;
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 9da5ee6c50cd..43ea8cfd374b 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1735,7 +1735,7 @@ init_conntrack(struct net *net, struct nf_conn *tmpl,
}

#ifdef CONFIG_NF_CONNTRACK_MARK
- ct->mark = exp->master->mark;
+ ct->mark = READ_ONCE(exp->master->mark);
#endif
#ifdef CONFIG_NF_CONNTRACK_SECMARK
ct->secmark = exp->master->secmark;
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index ef0a78aa9ba9..1727a4c4764f 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -322,9 +322,9 @@ ctnetlink_dump_timestamp(struct sk_buff *skb, const struct nf_conn *ct)
}

#ifdef CONFIG_NF_CONNTRACK_MARK
-static int ctnetlink_dump_mark(struct sk_buff *skb, const struct nf_conn *ct)
+static int ctnetlink_dump_mark(struct sk_buff *skb, u32 mark)
{
- if (nla_put_be32(skb, CTA_MARK, htonl(ct->mark)))
+ if (nla_put_be32(skb, CTA_MARK, htonl(mark)))
goto nla_put_failure;
return 0;

@@ -537,7 +537,7 @@ static int ctnetlink_dump_extinfo(struct sk_buff *skb,
static int ctnetlink_dump_info(struct sk_buff *skb, struct nf_conn *ct)
{
if (ctnetlink_dump_status(skb, ct) < 0 ||
- ctnetlink_dump_mark(skb, ct) < 0 ||
+ ctnetlink_dump_mark(skb, READ_ONCE(ct->mark)) < 0 ||
ctnetlink_dump_secctx(skb, ct) < 0 ||
ctnetlink_dump_id(skb, ct) < 0 ||
ctnetlink_dump_use(skb, ct) < 0 ||
@@ -716,6 +716,7 @@ ctnetlink_conntrack_event(unsigned int events, const struct nf_ct_event *item)
struct sk_buff *skb;
unsigned int type;
unsigned int flags = 0, group;
+ u32 mark;
int err;

if (events & (1 << IPCT_DESTROY)) {
@@ -820,8 +821,9 @@ ctnetlink_conntrack_event(unsigned int events, const struct nf_ct_event *item)
}

#ifdef CONFIG_NF_CONNTRACK_MARK
- if ((events & (1 << IPCT_MARK) || ct->mark)
- && ctnetlink_dump_mark(skb, ct) < 0)
+ mark = READ_ONCE(ct->mark);
+ if ((events & (1 << IPCT_MARK) || mark) &&
+ ctnetlink_dump_mark(skb, mark) < 0)
goto nla_put_failure;
#endif
nlmsg_end(skb, nlh);
@@ -1148,7 +1150,7 @@ static int ctnetlink_filter_match(struct nf_conn *ct, void *data)
}

#ifdef CONFIG_NF_CONNTRACK_MARK
- if ((ct->mark & filter->mark.mask) != filter->mark.val)
+ if ((READ_ONCE(ct->mark) & filter->mark.mask) != filter->mark.val)
goto ignore_entry;
#endif
status = (u32)READ_ONCE(ct->status);
@@ -2016,9 +2018,9 @@ static void ctnetlink_change_mark(struct nf_conn *ct,
mask = ~ntohl(nla_get_be32(cda[CTA_MARK_MASK]));

mark = ntohl(nla_get_be32(cda[CTA_MARK]));
- newmark = (ct->mark & mask) ^ mark;
- if (newmark != ct->mark)
- ct->mark = newmark;
+ newmark = (READ_ONCE(ct->mark) & mask) ^ mark;
+ if (newmark != READ_ONCE(ct->mark))
+ WRITE_ONCE(ct->mark, newmark);
}
#endif

@@ -2690,6 +2692,7 @@ static int __ctnetlink_glue_build(struct sk_buff *skb, struct nf_conn *ct)
{
const struct nf_conntrack_zone *zone;
struct nlattr *nest_parms;
+ u32 mark;

zone = nf_ct_zone(ct);

@@ -2751,7 +2754,8 @@ static int __ctnetlink_glue_build(struct sk_buff *skb, struct nf_conn *ct)
goto nla_put_failure;

#ifdef CONFIG_NF_CONNTRACK_MARK
- if (ct->mark && ctnetlink_dump_mark(skb, ct) < 0)
+ mark = READ_ONCE(ct->mark);
+ if (mark && ctnetlink_dump_mark(skb, mark) < 0)
goto nla_put_failure;
#endif
if (ctnetlink_dump_labels(skb, ct) < 0)
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 55aa55b252b2..4d85368203e0 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -363,7 +363,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
goto release;

#if defined(CONFIG_NF_CONNTRACK_MARK)
- seq_printf(s, "mark=%u ", ct->mark);
+ seq_printf(s, "mark=%u ", READ_ONCE(ct->mark));
#endif

ct_show_secctx(s, ct);
diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index c4559fae8acd..66c9a6c2b9cf 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -1074,6 +1074,7 @@ static int nf_flow_table_block_setup(struct nf_flowtable *flowtable,
struct flow_block_cb *block_cb, *next;
int err = 0;

+ down_write(&flowtable->flow_block_lock);
switch (cmd) {
case FLOW_BLOCK_BIND:
list_splice(&bo->cb_list, &flowtable->flow_block.cb_list);
@@ -1088,6 +1089,7 @@ static int nf_flow_table_block_setup(struct nf_flowtable *flowtable,
WARN_ON_ONCE(1);
err = -EOPNOTSUPP;
}
+ up_write(&flowtable->flow_block_lock);

return err;
}
@@ -1144,7 +1146,9 @@ static int nf_flow_table_offload_cmd(struct flow_block_offload *bo,

nf_flow_table_block_offload_init(bo, dev_net(dev), cmd, flowtable,
extack);
+ down_write(&flowtable->flow_block_lock);
err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_FT, bo);
+ up_write(&flowtable->flow_block_lock);
if (err < 0)
return err;

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 227f03db7ee1..3fac57d66dda 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -5813,7 +5813,8 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
&timeout);
if (err)
return err;
- } else if (set->flags & NFT_SET_TIMEOUT) {
+ } else if (set->flags & NFT_SET_TIMEOUT &&
+ !(flags & NFT_SET_ELEM_INTERVAL_END)) {
timeout = set->timeout;
}

@@ -5879,7 +5880,8 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
err = -EOPNOTSUPP;
goto err_set_elem_expr;
}
- } else if (set->num_exprs > 0) {
+ } else if (set->num_exprs > 0 &&
+ !(flags & NFT_SET_ELEM_INTERVAL_END)) {
err = nft_set_elem_expr_clone(ctx, set, expr_array);
if (err < 0)
goto err_set_elem_expr_clone;
diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c
index 9c7472af9e4a..bd468e955a21 100644
--- a/net/netfilter/nft_ct.c
+++ b/net/netfilter/nft_ct.c
@@ -97,7 +97,7 @@ static void nft_ct_get_eval(const struct nft_expr *expr,
return;
#ifdef CONFIG_NF_CONNTRACK_MARK
case NFT_CT_MARK:
- *dest = ct->mark;
+ *dest = READ_ONCE(ct->mark);
return;
#endif
#ifdef CONFIG_NF_CONNTRACK_SECMARK
@@ -296,8 +296,8 @@ static void nft_ct_set_eval(const struct nft_expr *expr,
switch (priv->key) {
#ifdef CONFIG_NF_CONNTRACK_MARK
case NFT_CT_MARK:
- if (ct->mark != value) {
- ct->mark = value;
+ if (READ_ONCE(ct->mark) != value) {
+ WRITE_ONCE(ct->mark, value);
nf_conntrack_event_cache(IPCT_MARK, ct);
}
break;
diff --git a/net/netfilter/xt_connmark.c b/net/netfilter/xt_connmark.c
index e5ebc0810675..ad3c033db64e 100644
--- a/net/netfilter/xt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -30,6 +30,7 @@ connmark_tg_shift(struct sk_buff *skb, const struct xt_connmark_tginfo2 *info)
u_int32_t new_targetmark;
struct nf_conn *ct;
u_int32_t newmark;
+ u_int32_t oldmark;

ct = nf_ct_get(skb, &ctinfo);
if (ct == NULL)
@@ -37,14 +38,15 @@ connmark_tg_shift(struct sk_buff *skb, const struct xt_connmark_tginfo2 *info)

switch (info->mode) {
case XT_CONNMARK_SET:
- newmark = (ct->mark & ~info->ctmask) ^ info->ctmark;
+ oldmark = READ_ONCE(ct->mark);
+ newmark = (oldmark & ~info->ctmask) ^ info->ctmark;
if (info->shift_dir == D_SHIFT_RIGHT)
newmark >>= info->shift_bits;
else
newmark <<= info->shift_bits;

- if (ct->mark != newmark) {
- ct->mark = newmark;
+ if (READ_ONCE(ct->mark) != newmark) {
+ WRITE_ONCE(ct->mark, newmark);
nf_conntrack_event_cache(IPCT_MARK, ct);
}
break;
@@ -55,15 +57,15 @@ connmark_tg_shift(struct sk_buff *skb, const struct xt_connmark_tginfo2 *info)
else
new_targetmark <<= info->shift_bits;

- newmark = (ct->mark & ~info->ctmask) ^
+ newmark = (READ_ONCE(ct->mark) & ~info->ctmask) ^
new_targetmark;
- if (ct->mark != newmark) {
- ct->mark = newmark;
+ if (READ_ONCE(ct->mark) != newmark) {
+ WRITE_ONCE(ct->mark, newmark);
nf_conntrack_event_cache(IPCT_MARK, ct);
}
break;
case XT_CONNMARK_RESTORE:
- new_targetmark = (ct->mark & info->ctmask);
+ new_targetmark = (READ_ONCE(ct->mark) & info->ctmask);
if (info->shift_dir == D_SHIFT_RIGHT)
new_targetmark >>= info->shift_bits;
else
@@ -126,7 +128,7 @@ connmark_mt(const struct sk_buff *skb, struct xt_action_param *par)
if (ct == NULL)
return false;

- return ((ct->mark & info->mask) == info->mark) ^ info->invert;
+ return ((READ_ONCE(ct->mark) & info->mask) == info->mark) ^ info->invert;
}

static int connmark_mt_check(const struct xt_mtchk_param *par)
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 189c9f428a3c..7b6cf9a44aea 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -542,7 +542,7 @@ static int nci_open_device(struct nci_dev *ndev)
skb_queue_purge(&ndev->tx_q);

ndev->ops->close(ndev);
- ndev->flags = 0;
+ ndev->flags &= BIT(NCI_UNREG);
}

done:
diff --git a/net/nfc/nci/data.c b/net/nfc/nci/data.c
index aa5e712adf07..3d36ea5701f0 100644
--- a/net/nfc/nci/data.c
+++ b/net/nfc/nci/data.c
@@ -279,8 +279,10 @@ void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb)
nci_plen(skb->data));

conn_info = nci_get_conn_info_by_conn_id(ndev, nci_conn_id(skb->data));
- if (!conn_info)
+ if (!conn_info) {
+ kfree_skb(skb);
return;
+ }

/* strip the nci data header */
skb_pull(skb, NCI_DATA_HDR_SIZE);
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index dc86f03309c1..7106ce231a2d 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -150,7 +150,7 @@ static u8 ovs_ct_get_state(enum ip_conntrack_info ctinfo)
static u32 ovs_ct_get_mark(const struct nf_conn *ct)
{
#if IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)
- return ct ? ct->mark : 0;
+ return ct ? READ_ONCE(ct->mark) : 0;
#else
return 0;
#endif
@@ -338,9 +338,9 @@ static int ovs_ct_set_mark(struct nf_conn *ct, struct sw_flow_key *key,
#if IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)
u32 new_mark;

- new_mark = ct_mark | (ct->mark & ~(mask));
- if (ct->mark != new_mark) {
- ct->mark = new_mark;
+ new_mark = ct_mark | (READ_ONCE(ct->mark) & ~(mask));
+ if (READ_ONCE(ct->mark) != new_mark) {
+ WRITE_ONCE(ct->mark, new_mark);
if (nf_ct_is_confirmed(ct))
nf_conntrack_event_cache(IPCT_MARK, ct);
key->ct.mark = new_mark;
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index 2b5f89713e36..ceba28e9dce6 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -351,7 +351,7 @@ static void rxrpc_dummy_notify_rx(struct sock *sk, struct rxrpc_call *rxcall,
*/
void rxrpc_kernel_end_call(struct socket *sock, struct rxrpc_call *call)
{
- _enter("%d{%d}", call->debug_id, atomic_read(&call->usage));
+ _enter("%d{%d}", call->debug_id, refcount_read(&call->ref));

mutex_lock(&call->user_mutex);
rxrpc_release_call(rxrpc_sk(sock->sk), call);
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index f2e3fb77a02d..e0123efa2a62 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -15,14 +15,6 @@
#include <keys/rxrpc-type.h>
#include "protocol.h"

-#if 0
-#define CHECK_SLAB_OKAY(X) \
- BUG_ON(atomic_read((X)) >> (sizeof(atomic_t) - 2) == \
- (POISON_FREE << 8 | POISON_FREE))
-#else
-#define CHECK_SLAB_OKAY(X) do {} while (0)
-#endif
-
#define FCRYPT_BSIZE 8
struct rxrpc_crypt {
union {
@@ -88,7 +80,7 @@ struct rxrpc_net {
struct work_struct client_conn_reaper;
struct timer_list client_conn_reap_timer;

- struct list_head local_endpoints;
+ struct hlist_head local_endpoints;
struct mutex local_mutex; /* Lock for ->local_endpoints */

DECLARE_HASHTABLE (peer_hash, 10);
@@ -279,9 +271,9 @@ struct rxrpc_security {
struct rxrpc_local {
struct rcu_head rcu;
atomic_t active_users; /* Number of users of the local endpoint */
- atomic_t usage; /* Number of references to the structure */
+ refcount_t ref; /* Number of references to the structure */
struct rxrpc_net *rxnet; /* The network ns in which this resides */
- struct list_head link;
+ struct hlist_node link;
struct socket *socket; /* my UDP socket */
struct work_struct processor;
struct rxrpc_sock __rcu *service; /* Service(s) listening on this endpoint */
@@ -304,7 +296,7 @@ struct rxrpc_local {
*/
struct rxrpc_peer {
struct rcu_head rcu; /* This must be first */
- atomic_t usage;
+ refcount_t ref;
unsigned long hash_key;
struct hlist_node hash_link;
struct rxrpc_local *local;
@@ -406,7 +398,8 @@ enum rxrpc_conn_proto_state {
*/
struct rxrpc_bundle {
struct rxrpc_conn_parameters params;
- atomic_t usage;
+ refcount_t ref;
+ atomic_t active; /* Number of active users */
unsigned int debug_id;
bool try_upgrade; /* True if the bundle is attempting upgrade */
bool alloc_conn; /* True if someone's getting a conn */
@@ -427,7 +420,7 @@ struct rxrpc_connection {
struct rxrpc_conn_proto proto;
struct rxrpc_conn_parameters params;

- atomic_t usage;
+ refcount_t ref;
struct rcu_head rcu;
struct list_head cache_link;

@@ -609,7 +602,7 @@ struct rxrpc_call {
int error; /* Local error incurred */
enum rxrpc_call_state state; /* current state of call */
enum rxrpc_call_completion completion; /* Call completion condition */
- atomic_t usage;
+ refcount_t ref;
u16 service_id; /* service ID */
u8 security_ix; /* Security type */
enum rxrpc_interruptibility interruptibility; /* At what point call may be interrupted */
@@ -1016,6 +1009,7 @@ void rxrpc_put_peer_locked(struct rxrpc_peer *);
extern const struct seq_operations rxrpc_call_seq_ops;
extern const struct seq_operations rxrpc_connection_seq_ops;
extern const struct seq_operations rxrpc_peer_seq_ops;
+extern const struct seq_operations rxrpc_local_seq_ops;

/*
* recvmsg.c
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index 8b24ffbc72ef..99e10eea3732 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -91,7 +91,7 @@ static int rxrpc_service_prealloc_one(struct rxrpc_sock *rx,
(head + 1) & (size - 1));

trace_rxrpc_conn(conn->debug_id, rxrpc_conn_new_service,
- atomic_read(&conn->usage), here);
+ refcount_read(&conn->ref), here);
}

/* Now it gets complicated, because calls get registered with the
@@ -104,7 +104,7 @@ static int rxrpc_service_prealloc_one(struct rxrpc_sock *rx,
call->state = RXRPC_CALL_SERVER_PREALLOC;

trace_rxrpc_call(call->debug_id, rxrpc_call_new_service,
- atomic_read(&call->usage),
+ refcount_read(&call->ref),
here, (const void *)user_call_ID);

write_lock(&rx->call_lock);
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index d674d90e7031..6401cdf7a624 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -112,7 +112,7 @@ struct rxrpc_call *rxrpc_find_call_by_user_ID(struct rxrpc_sock *rx,
found_extant_call:
rxrpc_get_call(call, rxrpc_call_got);
read_unlock(&rx->call_lock);
- _leave(" = %p [%d]", call, atomic_read(&call->usage));
+ _leave(" = %p [%d]", call, refcount_read(&call->ref));
return call;
}

@@ -160,7 +160,7 @@ struct rxrpc_call *rxrpc_alloc_call(struct rxrpc_sock *rx, gfp_t gfp,
spin_lock_init(&call->notify_lock);
spin_lock_init(&call->input_lock);
rwlock_init(&call->state_lock);
- atomic_set(&call->usage, 1);
+ refcount_set(&call->ref, 1);
call->debug_id = debug_id;
call->tx_total_len = -1;
call->next_rx_timo = 20 * HZ;
@@ -301,7 +301,7 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx,
call->interruptibility = p->interruptibility;
call->tx_total_len = p->tx_total_len;
trace_rxrpc_call(call->debug_id, rxrpc_call_new_client,
- atomic_read(&call->usage),
+ refcount_read(&call->ref),
here, (const void *)p->user_call_ID);
if (p->kernel)
__set_bit(RXRPC_CALL_KERNEL, &call->flags);
@@ -354,7 +354,7 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx,
goto error_attached_to_socket;

trace_rxrpc_call(call->debug_id, rxrpc_call_connected,
- atomic_read(&call->usage), here, NULL);
+ refcount_read(&call->ref), here, NULL);

rxrpc_start_call_timer(call);

@@ -374,7 +374,7 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx,
__rxrpc_set_call_completion(call, RXRPC_CALL_LOCAL_ERROR,
RX_CALL_DEAD, -EEXIST);
trace_rxrpc_call(call->debug_id, rxrpc_call_error,
- atomic_read(&call->usage), here, ERR_PTR(-EEXIST));
+ refcount_read(&call->ref), here, ERR_PTR(-EEXIST));
rxrpc_release_call(rx, call);
mutex_unlock(&call->user_mutex);
rxrpc_put_call(call, rxrpc_call_put);
@@ -388,7 +388,7 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx,
*/
error_attached_to_socket:
trace_rxrpc_call(call->debug_id, rxrpc_call_error,
- atomic_read(&call->usage), here, ERR_PTR(ret));
+ refcount_read(&call->ref), here, ERR_PTR(ret));
set_bit(RXRPC_CALL_DISCONNECTED, &call->flags);
__rxrpc_set_call_completion(call, RXRPC_CALL_LOCAL_ERROR,
RX_CALL_DEAD, ret);
@@ -444,8 +444,9 @@ void rxrpc_incoming_call(struct rxrpc_sock *rx,
bool rxrpc_queue_call(struct rxrpc_call *call)
{
const void *here = __builtin_return_address(0);
- int n = atomic_fetch_add_unless(&call->usage, 1, 0);
- if (n == 0)
+ int n;
+
+ if (!__refcount_inc_not_zero(&call->ref, &n))
return false;
if (rxrpc_queue_work(&call->processor))
trace_rxrpc_call(call->debug_id, rxrpc_call_queued, n + 1,
@@ -461,7 +462,7 @@ bool rxrpc_queue_call(struct rxrpc_call *call)
bool __rxrpc_queue_call(struct rxrpc_call *call)
{
const void *here = __builtin_return_address(0);
- int n = atomic_read(&call->usage);
+ int n = refcount_read(&call->ref);
ASSERTCMP(n, >=, 1);
if (rxrpc_queue_work(&call->processor))
trace_rxrpc_call(call->debug_id, rxrpc_call_queued_ref, n,
@@ -478,7 +479,7 @@ void rxrpc_see_call(struct rxrpc_call *call)
{
const void *here = __builtin_return_address(0);
if (call) {
- int n = atomic_read(&call->usage);
+ int n = refcount_read(&call->ref);

trace_rxrpc_call(call->debug_id, rxrpc_call_seen, n,
here, NULL);
@@ -488,11 +489,11 @@ void rxrpc_see_call(struct rxrpc_call *call)
bool rxrpc_try_get_call(struct rxrpc_call *call, enum rxrpc_call_trace op)
{
const void *here = __builtin_return_address(0);
- int n = atomic_fetch_add_unless(&call->usage, 1, 0);
+ int n;

- if (n == 0)
+ if (!__refcount_inc_not_zero(&call->ref, &n))
return false;
- trace_rxrpc_call(call->debug_id, op, n, here, NULL);
+ trace_rxrpc_call(call->debug_id, op, n + 1, here, NULL);
return true;
}

@@ -502,9 +503,10 @@ bool rxrpc_try_get_call(struct rxrpc_call *call, enum rxrpc_call_trace op)
void rxrpc_get_call(struct rxrpc_call *call, enum rxrpc_call_trace op)
{
const void *here = __builtin_return_address(0);
- int n = atomic_inc_return(&call->usage);
+ int n;

- trace_rxrpc_call(call->debug_id, op, n, here, NULL);
+ __refcount_inc(&call->ref, &n);
+ trace_rxrpc_call(call->debug_id, op, n + 1, here, NULL);
}

/*
@@ -529,10 +531,10 @@ void rxrpc_release_call(struct rxrpc_sock *rx, struct rxrpc_call *call)
struct rxrpc_connection *conn = call->conn;
bool put = false;

- _enter("{%d,%d}", call->debug_id, atomic_read(&call->usage));
+ _enter("{%d,%d}", call->debug_id, refcount_read(&call->ref));

trace_rxrpc_call(call->debug_id, rxrpc_call_release,
- atomic_read(&call->usage),
+ refcount_read(&call->ref),
here, (const void *)call->flags);

ASSERTCMP(call->state, ==, RXRPC_CALL_COMPLETE);
@@ -621,14 +623,14 @@ void rxrpc_put_call(struct rxrpc_call *call, enum rxrpc_call_trace op)
struct rxrpc_net *rxnet = call->rxnet;
const void *here = __builtin_return_address(0);
unsigned int debug_id = call->debug_id;
+ bool dead;
int n;

ASSERT(call != NULL);

- n = atomic_dec_return(&call->usage);
+ dead = __refcount_dec_and_test(&call->ref, &n);
trace_rxrpc_call(debug_id, op, n, here, NULL);
- ASSERTCMP(n, >=, 0);
- if (n == 0) {
+ if (dead) {
_debug("call %d dead", call->debug_id);
ASSERTCMP(call->state, ==, RXRPC_CALL_COMPLETE);

@@ -718,7 +720,7 @@ void rxrpc_destroy_all_calls(struct rxrpc_net *rxnet)
list_del_init(&call->link);

pr_err("Call %p still in use (%d,%s,%lx,%lx)!\n",
- call, atomic_read(&call->usage),
+ call, refcount_read(&call->ref),
rxrpc_call_states[call->state],
call->flags, call->events);

diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index 8120138dac01..bdb335cb2d05 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -40,6 +40,8 @@ __read_mostly unsigned long rxrpc_conn_idle_client_fast_expiry = 2 * HZ;
DEFINE_IDR(rxrpc_client_conn_ids);
static DEFINE_SPINLOCK(rxrpc_conn_id_lock);

+static void rxrpc_deactivate_bundle(struct rxrpc_bundle *bundle);
+
/*
* Get a connection ID and epoch for a client connection from the global pool.
* The connection struct pointer is then recorded in the idr radix tree. The
@@ -102,7 +104,7 @@ void rxrpc_destroy_client_conn_ids(void)
if (!idr_is_empty(&rxrpc_client_conn_ids)) {
idr_for_each_entry(&rxrpc_client_conn_ids, conn, id) {
pr_err("AF_RXRPC: Leaked client conn %p {%d}\n",
- conn, atomic_read(&conn->usage));
+ conn, refcount_read(&conn->ref));
}
BUG();
}
@@ -122,7 +124,8 @@ static struct rxrpc_bundle *rxrpc_alloc_bundle(struct rxrpc_conn_parameters *cp,
if (bundle) {
bundle->params = *cp;
rxrpc_get_peer(bundle->params.peer);
- atomic_set(&bundle->usage, 1);
+ refcount_set(&bundle->ref, 1);
+ atomic_set(&bundle->active, 1);
spin_lock_init(&bundle->channel_lock);
INIT_LIST_HEAD(&bundle->waiting_calls);
}
@@ -131,7 +134,7 @@ static struct rxrpc_bundle *rxrpc_alloc_bundle(struct rxrpc_conn_parameters *cp,

struct rxrpc_bundle *rxrpc_get_bundle(struct rxrpc_bundle *bundle)
{
- atomic_inc(&bundle->usage);
+ refcount_inc(&bundle->ref);
return bundle;
}

@@ -144,10 +147,13 @@ static void rxrpc_free_bundle(struct rxrpc_bundle *bundle)
void rxrpc_put_bundle(struct rxrpc_bundle *bundle)
{
unsigned int d = bundle->debug_id;
- unsigned int u = atomic_dec_return(&bundle->usage);
+ bool dead;
+ int r;
+
+ dead = __refcount_dec_and_test(&bundle->ref, &r);

- _debug("PUT B=%x %u", d, u);
- if (u == 0)
+ _debug("PUT B=%x %d", d, r - 1);
+ if (dead)
rxrpc_free_bundle(bundle);
}

@@ -169,7 +175,7 @@ rxrpc_alloc_client_connection(struct rxrpc_bundle *bundle, gfp_t gfp)
return ERR_PTR(-ENOMEM);
}

- atomic_set(&conn->usage, 1);
+ refcount_set(&conn->ref, 1);
conn->bundle = bundle;
conn->params = bundle->params;
conn->out_clientflag = RXRPC_CLIENT_INITIATED;
@@ -195,7 +201,7 @@ rxrpc_alloc_client_connection(struct rxrpc_bundle *bundle, gfp_t gfp)
key_get(conn->params.key);

trace_rxrpc_conn(conn->debug_id, rxrpc_conn_new_client,
- atomic_read(&conn->usage),
+ refcount_read(&conn->ref),
__builtin_return_address(0));

atomic_inc(&rxnet->nr_client_conns);
@@ -335,6 +341,7 @@ static struct rxrpc_bundle *rxrpc_look_up_bundle(struct rxrpc_conn_parameters *c
rxrpc_free_bundle(candidate);
found_bundle:
rxrpc_get_bundle(bundle);
+ atomic_inc(&bundle->active);
spin_unlock(&local->client_bundles_lock);
_leave(" = %u [found]", bundle->debug_id);
return bundle;
@@ -432,6 +439,7 @@ static void rxrpc_add_conn_to_bundle(struct rxrpc_bundle *bundle, gfp_t gfp)
if (old)
trace_rxrpc_client(old, -1, rxrpc_client_replace);
candidate->bundle_shift = shift;
+ atomic_inc(&bundle->active);
bundle->conns[i] = candidate;
for (j = 0; j < RXRPC_MAXCALLS; j++)
set_bit(shift + j, &bundle->avail_chans);
@@ -722,6 +730,7 @@ int rxrpc_connect_call(struct rxrpc_sock *rx,
smp_rmb();

out_put_bundle:
+ rxrpc_deactivate_bundle(bundle);
rxrpc_put_bundle(bundle);
out:
_leave(" = %d", ret);
@@ -897,9 +906,8 @@ void rxrpc_disconnect_client_call(struct rxrpc_bundle *bundle, struct rxrpc_call
static void rxrpc_unbundle_conn(struct rxrpc_connection *conn)
{
struct rxrpc_bundle *bundle = conn->bundle;
- struct rxrpc_local *local = bundle->params.local;
unsigned int bindex;
- bool need_drop = false, need_put = false;
+ bool need_drop = false;
int i;

_enter("C=%x", conn->debug_id);
@@ -918,15 +926,22 @@ static void rxrpc_unbundle_conn(struct rxrpc_connection *conn)
}
spin_unlock(&bundle->channel_lock);

- /* If there are no more connections, remove the bundle */
- if (!bundle->avail_chans) {
- _debug("maybe unbundle");
- spin_lock(&local->client_bundles_lock);
+ if (need_drop) {
+ rxrpc_deactivate_bundle(bundle);
+ rxrpc_put_connection(conn);
+ }
+}

- for (i = 0; i < ARRAY_SIZE(bundle->conns); i++)
- if (bundle->conns[i])
- break;
- if (i == ARRAY_SIZE(bundle->conns) && !bundle->params.exclusive) {
+/*
+ * Drop the active count on a bundle.
+ */
+static void rxrpc_deactivate_bundle(struct rxrpc_bundle *bundle)
+{
+ struct rxrpc_local *local = bundle->params.local;
+ bool need_put = false;
+
+ if (atomic_dec_and_lock(&bundle->active, &local->client_bundles_lock)) {
+ if (!bundle->params.exclusive) {
_debug("erase bundle");
rb_erase(&bundle->local_node, &local->client_bundles);
need_put = true;
@@ -936,10 +951,6 @@ static void rxrpc_unbundle_conn(struct rxrpc_connection *conn)
if (need_put)
rxrpc_put_bundle(bundle);
}
-
- if (need_drop)
- rxrpc_put_connection(conn);
- _leave("");
}

/*
@@ -966,14 +977,13 @@ void rxrpc_put_client_conn(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
unsigned int debug_id = conn->debug_id;
- int n;
+ bool dead;
+ int r;

- n = atomic_dec_return(&conn->usage);
- trace_rxrpc_conn(debug_id, rxrpc_conn_put_client, n, here);
- if (n <= 0) {
- ASSERTCMP(n, >=, 0);
+ dead = __refcount_dec_and_test(&conn->ref, &r);
+ trace_rxrpc_conn(debug_id, rxrpc_conn_put_client, r - 1, here);
+ if (dead)
rxrpc_kill_client_conn(conn);
- }
}

/*
diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c
index 660cd9b1a465..22089e37e97f 100644
--- a/net/rxrpc/conn_object.c
+++ b/net/rxrpc/conn_object.c
@@ -104,7 +104,7 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local,
goto not_found;
*_peer = peer;
conn = rxrpc_find_service_conn_rcu(peer, skb);
- if (!conn || atomic_read(&conn->usage) == 0)
+ if (!conn || refcount_read(&conn->ref) == 0)
goto not_found;
_leave(" = %p", conn);
return conn;
@@ -114,7 +114,7 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local,
*/
conn = idr_find(&rxrpc_client_conn_ids,
sp->hdr.cid >> RXRPC_CIDSHIFT);
- if (!conn || atomic_read(&conn->usage) == 0) {
+ if (!conn || refcount_read(&conn->ref) == 0) {
_debug("no conn");
goto not_found;
}
@@ -263,11 +263,12 @@ void rxrpc_kill_connection(struct rxrpc_connection *conn)
bool rxrpc_queue_conn(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
- int n = atomic_fetch_add_unless(&conn->usage, 1, 0);
- if (n == 0)
+ int r;
+
+ if (!__refcount_inc_not_zero(&conn->ref, &r))
return false;
if (rxrpc_queue_work(&conn->processor))
- trace_rxrpc_conn(conn->debug_id, rxrpc_conn_queued, n + 1, here);
+ trace_rxrpc_conn(conn->debug_id, rxrpc_conn_queued, r + 1, here);
else
rxrpc_put_connection(conn);
return true;
@@ -280,7 +281,7 @@ void rxrpc_see_connection(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
if (conn) {
- int n = atomic_read(&conn->usage);
+ int n = refcount_read(&conn->ref);

trace_rxrpc_conn(conn->debug_id, rxrpc_conn_seen, n, here);
}
@@ -292,9 +293,10 @@ void rxrpc_see_connection(struct rxrpc_connection *conn)
struct rxrpc_connection *rxrpc_get_connection(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
- int n = atomic_inc_return(&conn->usage);
+ int r;

- trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, n, here);
+ __refcount_inc(&conn->ref, &r);
+ trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, r, here);
return conn;
}

@@ -305,11 +307,11 @@ struct rxrpc_connection *
rxrpc_get_connection_maybe(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
+ int r;

if (conn) {
- int n = atomic_fetch_add_unless(&conn->usage, 1, 0);
- if (n > 0)
- trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, n + 1, here);
+ if (__refcount_inc_not_zero(&conn->ref, &r))
+ trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, r + 1, here);
else
conn = NULL;
}
@@ -333,12 +335,11 @@ void rxrpc_put_service_conn(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
unsigned int debug_id = conn->debug_id;
- int n;
+ int r;

- n = atomic_dec_return(&conn->usage);
- trace_rxrpc_conn(debug_id, rxrpc_conn_put_service, n, here);
- ASSERTCMP(n, >=, 0);
- if (n == 1)
+ __refcount_dec(&conn->ref, &r);
+ trace_rxrpc_conn(debug_id, rxrpc_conn_put_service, r - 1, here);
+ if (r - 1 == 1)
rxrpc_set_service_reap_timer(conn->params.local->rxnet,
jiffies + rxrpc_connection_expiry);
}
@@ -351,9 +352,9 @@ static void rxrpc_destroy_connection(struct rcu_head *rcu)
struct rxrpc_connection *conn =
container_of(rcu, struct rxrpc_connection, rcu);

- _enter("{%d,u=%d}", conn->debug_id, atomic_read(&conn->usage));
+ _enter("{%d,u=%d}", conn->debug_id, refcount_read(&conn->ref));

- ASSERTCMP(atomic_read(&conn->usage), ==, 0);
+ ASSERTCMP(refcount_read(&conn->ref), ==, 0);

_net("DESTROY CONN %d", conn->debug_id);

@@ -392,8 +393,8 @@ void rxrpc_service_connection_reaper(struct work_struct *work)

write_lock(&rxnet->conn_lock);
list_for_each_entry_safe(conn, _p, &rxnet->service_conns, link) {
- ASSERTCMP(atomic_read(&conn->usage), >, 0);
- if (likely(atomic_read(&conn->usage) > 1))
+ ASSERTCMP(refcount_read(&conn->ref), >, 0);
+ if (likely(refcount_read(&conn->ref) > 1))
continue;
if (conn->state == RXRPC_CONN_SERVICE_PREALLOC)
continue;
@@ -405,7 +406,7 @@ void rxrpc_service_connection_reaper(struct work_struct *work)
expire_at = idle_timestamp + rxrpc_closed_conn_expiry * HZ;

_debug("reap CONN %d { u=%d,t=%ld }",
- conn->debug_id, atomic_read(&conn->usage),
+ conn->debug_id, refcount_read(&conn->ref),
(long)expire_at - (long)now);

if (time_before(now, expire_at)) {
@@ -418,7 +419,7 @@ void rxrpc_service_connection_reaper(struct work_struct *work)
/* The usage count sits at 1 whilst the object is unused on the
* list; we reduce that to 0 to make the object unavailable.
*/
- if (atomic_cmpxchg(&conn->usage, 1, 0) != 1)
+ if (!refcount_dec_if_one(&conn->ref))
continue;
trace_rxrpc_conn(conn->debug_id, rxrpc_conn_reap_service, 0, NULL);

@@ -442,7 +443,7 @@ void rxrpc_service_connection_reaper(struct work_struct *work)
link);
list_del_init(&conn->link);

- ASSERTCMP(atomic_read(&conn->usage), ==, 0);
+ ASSERTCMP(refcount_read(&conn->ref), ==, 0);
rxrpc_kill_connection(conn);
}

@@ -470,7 +471,7 @@ void rxrpc_destroy_all_connections(struct rxrpc_net *rxnet)
write_lock(&rxnet->conn_lock);
list_for_each_entry_safe(conn, _p, &rxnet->service_conns, link) {
pr_err("AF_RXRPC: Leaked conn %p {%d}\n",
- conn, atomic_read(&conn->usage));
+ conn, refcount_read(&conn->ref));
leak = true;
}
write_unlock(&rxnet->conn_lock);
diff --git a/net/rxrpc/conn_service.c b/net/rxrpc/conn_service.c
index e1966dfc9152..6e6aa02c6f9e 100644
--- a/net/rxrpc/conn_service.c
+++ b/net/rxrpc/conn_service.c
@@ -9,7 +9,7 @@
#include "ar-internal.h"

static struct rxrpc_bundle rxrpc_service_dummy_bundle = {
- .usage = ATOMIC_INIT(1),
+ .ref = REFCOUNT_INIT(1),
.debug_id = UINT_MAX,
.channel_lock = __SPIN_LOCK_UNLOCKED(&rxrpc_service_dummy_bundle.channel_lock),
};
@@ -99,7 +99,7 @@ static void rxrpc_publish_service_conn(struct rxrpc_peer *peer,
return;

found_extant_conn:
- if (atomic_read(&cursor->usage) == 0)
+ if (refcount_read(&cursor->ref) == 0)
goto replace_old_connection;
write_sequnlock_bh(&peer->service_conn_lock);
/* We should not be able to get here. rxrpc_incoming_connection() is
@@ -132,7 +132,7 @@ struct rxrpc_connection *rxrpc_prealloc_service_connection(struct rxrpc_net *rxn
* the rxrpc_connections list.
*/
conn->state = RXRPC_CONN_SERVICE_PREALLOC;
- atomic_set(&conn->usage, 2);
+ refcount_set(&conn->ref, 2);
conn->bundle = rxrpc_get_bundle(&rxrpc_service_dummy_bundle);

atomic_inc(&rxnet->nr_conns);
@@ -142,7 +142,7 @@ struct rxrpc_connection *rxrpc_prealloc_service_connection(struct rxrpc_net *rxn
write_unlock(&rxnet->conn_lock);

trace_rxrpc_conn(conn->debug_id, rxrpc_conn_new_service,
- atomic_read(&conn->usage),
+ refcount_read(&conn->ref),
__builtin_return_address(0));
}

diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 3521ebd0ee41..721d847ba92b 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -1190,8 +1190,6 @@ static void rxrpc_post_packet_to_local(struct rxrpc_local *local,
*/
static void rxrpc_reject_packet(struct rxrpc_local *local, struct sk_buff *skb)
{
- CHECK_SLAB_OKAY(&local->usage);
-
if (rxrpc_get_local_maybe(local)) {
skb_queue_tail(&local->reject_queue, skb);
rxrpc_queue_local(local);
@@ -1449,7 +1447,7 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb)
}
}

- if (!call || atomic_read(&call->usage) == 0) {
+ if (!call || refcount_read(&call->ref) == 0) {
if (rxrpc_to_client(sp) ||
sp->hdr.type != RXRPC_PACKET_TYPE_DATA)
goto bad_message;
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index 1d15940f61d7..38ea98ff426b 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -79,10 +79,10 @@ static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet,

local = kzalloc(sizeof(struct rxrpc_local), GFP_KERNEL);
if (local) {
- atomic_set(&local->usage, 1);
+ refcount_set(&local->ref, 1);
atomic_set(&local->active_users, 1);
local->rxnet = rxnet;
- INIT_LIST_HEAD(&local->link);
+ INIT_HLIST_NODE(&local->link);
INIT_WORK(&local->processor, rxrpc_local_processor);
init_rwsem(&local->defrag_sem);
skb_queue_head_init(&local->reject_queue);
@@ -181,7 +181,7 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,
{
struct rxrpc_local *local;
struct rxrpc_net *rxnet = rxrpc_net(net);
- struct list_head *cursor;
+ struct hlist_node *cursor;
const char *age;
long diff;
int ret;
@@ -191,16 +191,12 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,

mutex_lock(&rxnet->local_mutex);

- for (cursor = rxnet->local_endpoints.next;
- cursor != &rxnet->local_endpoints;
- cursor = cursor->next) {
- local = list_entry(cursor, struct rxrpc_local, link);
+ hlist_for_each(cursor, &rxnet->local_endpoints) {
+ local = hlist_entry(cursor, struct rxrpc_local, link);

diff = rxrpc_local_cmp_key(local, srx);
- if (diff < 0)
+ if (diff != 0)
continue;
- if (diff > 0)
- break;

/* Services aren't allowed to share transport sockets, so
* reject that here. It is possible that the object is dying -
@@ -212,9 +208,10 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,
goto addr_in_use;
}

- /* Found a match. We replace a dying object. Attempting to
- * bind the transport socket may still fail if we're attempting
- * to use a local address that the dying object is still using.
+ /* Found a match. We want to replace a dying object.
+ * Attempting to bind the transport socket may still fail if
+ * we're attempting to use a local address that the dying
+ * object is still using.
*/
if (!rxrpc_use_local(local))
break;
@@ -231,10 +228,12 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,
if (ret < 0)
goto sock_error;

- if (cursor != &rxnet->local_endpoints)
- list_replace_init(cursor, &local->link);
- else
- list_add_tail(&local->link, cursor);
+ if (cursor) {
+ hlist_replace_rcu(cursor, &local->link);
+ cursor->pprev = NULL;
+ } else {
+ hlist_add_head_rcu(&local->link, &rxnet->local_endpoints);
+ }
age = "new";

found:
@@ -267,10 +266,10 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,
struct rxrpc_local *rxrpc_get_local(struct rxrpc_local *local)
{
const void *here = __builtin_return_address(0);
- int n;
+ int r;

- n = atomic_inc_return(&local->usage);
- trace_rxrpc_local(local->debug_id, rxrpc_local_got, n, here);
+ __refcount_inc(&local->ref, &r);
+ trace_rxrpc_local(local->debug_id, rxrpc_local_got, r + 1, here);
return local;
}

@@ -280,12 +279,12 @@ struct rxrpc_local *rxrpc_get_local(struct rxrpc_local *local)
struct rxrpc_local *rxrpc_get_local_maybe(struct rxrpc_local *local)
{
const void *here = __builtin_return_address(0);
+ int r;

if (local) {
- int n = atomic_fetch_add_unless(&local->usage, 1, 0);
- if (n > 0)
+ if (__refcount_inc_not_zero(&local->ref, &r))
trace_rxrpc_local(local->debug_id, rxrpc_local_got,
- n + 1, here);
+ r + 1, here);
else
local = NULL;
}
@@ -299,10 +298,10 @@ void rxrpc_queue_local(struct rxrpc_local *local)
{
const void *here = __builtin_return_address(0);
unsigned int debug_id = local->debug_id;
- int n = atomic_read(&local->usage);
+ int r = refcount_read(&local->ref);

if (rxrpc_queue_work(&local->processor))
- trace_rxrpc_local(debug_id, rxrpc_local_queued, n, here);
+ trace_rxrpc_local(debug_id, rxrpc_local_queued, r + 1, here);
else
rxrpc_put_local(local);
}
@@ -314,15 +313,16 @@ void rxrpc_put_local(struct rxrpc_local *local)
{
const void *here = __builtin_return_address(0);
unsigned int debug_id;
- int n;
+ bool dead;
+ int r;

if (local) {
debug_id = local->debug_id;

- n = atomic_dec_return(&local->usage);
- trace_rxrpc_local(debug_id, rxrpc_local_put, n, here);
+ dead = __refcount_dec_and_test(&local->ref, &r);
+ trace_rxrpc_local(debug_id, rxrpc_local_put, r, here);

- if (n == 0)
+ if (dead)
call_rcu(&local->rcu, rxrpc_local_rcu);
}
}
@@ -375,7 +375,7 @@ static void rxrpc_local_destroyer(struct rxrpc_local *local)
local->dead = true;

mutex_lock(&rxnet->local_mutex);
- list_del_init(&local->link);
+ hlist_del_init_rcu(&local->link);
mutex_unlock(&rxnet->local_mutex);

rxrpc_clean_up_local_conns(local);
@@ -410,7 +410,7 @@ static void rxrpc_local_processor(struct work_struct *work)
return;

trace_rxrpc_local(local->debug_id, rxrpc_local_processing,
- atomic_read(&local->usage), NULL);
+ refcount_read(&local->ref), NULL);

do {
again = false;
@@ -462,11 +462,11 @@ void rxrpc_destroy_all_locals(struct rxrpc_net *rxnet)

flush_workqueue(rxrpc_workqueue);

- if (!list_empty(&rxnet->local_endpoints)) {
+ if (!hlist_empty(&rxnet->local_endpoints)) {
mutex_lock(&rxnet->local_mutex);
- list_for_each_entry(local, &rxnet->local_endpoints, link) {
+ hlist_for_each_entry(local, &rxnet->local_endpoints, link) {
pr_err("AF_RXRPC: Leaked local %p {%d}\n",
- local, atomic_read(&local->usage));
+ local, refcount_read(&local->ref));
}
mutex_unlock(&rxnet->local_mutex);
BUG();
diff --git a/net/rxrpc/net_ns.c b/net/rxrpc/net_ns.c
index e4d6d432515b..bb4c25d6df64 100644
--- a/net/rxrpc/net_ns.c
+++ b/net/rxrpc/net_ns.c
@@ -72,7 +72,7 @@ static __net_init int rxrpc_init_net(struct net *net)
timer_setup(&rxnet->client_conn_reap_timer,
rxrpc_client_conn_reap_timeout, 0);

- INIT_LIST_HEAD(&rxnet->local_endpoints);
+ INIT_HLIST_HEAD(&rxnet->local_endpoints);
mutex_init(&rxnet->local_mutex);

hash_init(rxnet->peer_hash);
@@ -98,6 +98,9 @@ static __net_init int rxrpc_init_net(struct net *net)
proc_create_net("peers", 0444, rxnet->proc_net,
&rxrpc_peer_seq_ops,
sizeof(struct seq_net_private));
+ proc_create_net("locals", 0444, rxnet->proc_net,
+ &rxrpc_local_seq_ops,
+ sizeof(struct seq_net_private));
return 0;

err_proc:
diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c
index 0298fe2ad6d3..26d2ae9baaf2 100644
--- a/net/rxrpc/peer_object.c
+++ b/net/rxrpc/peer_object.c
@@ -121,7 +121,7 @@ static struct rxrpc_peer *__rxrpc_lookup_peer_rcu(

hash_for_each_possible_rcu(rxnet->peer_hash, peer, hash_link, hash_key) {
if (rxrpc_peer_cmp_key(peer, local, srx, hash_key) == 0 &&
- atomic_read(&peer->usage) > 0)
+ refcount_read(&peer->ref) > 0)
return peer;
}

@@ -140,7 +140,7 @@ struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *local,
peer = __rxrpc_lookup_peer_rcu(local, srx, hash_key);
if (peer) {
_net("PEER %d {%pISp}", peer->debug_id, &peer->srx.transport);
- _leave(" = %p {u=%d}", peer, atomic_read(&peer->usage));
+ _leave(" = %p {u=%d}", peer, refcount_read(&peer->ref));
}
return peer;
}
@@ -216,7 +216,7 @@ struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp)

peer = kzalloc(sizeof(struct rxrpc_peer), gfp);
if (peer) {
- atomic_set(&peer->usage, 1);
+ refcount_set(&peer->ref, 1);
peer->local = rxrpc_get_local(local);
INIT_HLIST_HEAD(&peer->error_targets);
peer->service_conns = RB_ROOT;
@@ -378,7 +378,7 @@ struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *rx,

_net("PEER %d {%pISp}", peer->debug_id, &peer->srx.transport);

- _leave(" = %p {u=%d}", peer, atomic_read(&peer->usage));
+ _leave(" = %p {u=%d}", peer, refcount_read(&peer->ref));
return peer;
}

@@ -388,10 +388,10 @@ struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *rx,
struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *peer)
{
const void *here = __builtin_return_address(0);
- int n;
+ int r;

- n = atomic_inc_return(&peer->usage);
- trace_rxrpc_peer(peer->debug_id, rxrpc_peer_got, n, here);
+ __refcount_inc(&peer->ref, &r);
+ trace_rxrpc_peer(peer->debug_id, rxrpc_peer_got, r + 1, here);
return peer;
}

@@ -401,11 +401,11 @@ struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *peer)
struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer)
{
const void *here = __builtin_return_address(0);
+ int r;

if (peer) {
- int n = atomic_fetch_add_unless(&peer->usage, 1, 0);
- if (n > 0)
- trace_rxrpc_peer(peer->debug_id, rxrpc_peer_got, n + 1, here);
+ if (__refcount_inc_not_zero(&peer->ref, &r))
+ trace_rxrpc_peer(peer->debug_id, rxrpc_peer_got, r + 1, here);
else
peer = NULL;
}
@@ -436,13 +436,14 @@ void rxrpc_put_peer(struct rxrpc_peer *peer)
{
const void *here = __builtin_return_address(0);
unsigned int debug_id;
- int n;
+ bool dead;
+ int r;

if (peer) {
debug_id = peer->debug_id;
- n = atomic_dec_return(&peer->usage);
- trace_rxrpc_peer(debug_id, rxrpc_peer_put, n, here);
- if (n == 0)
+ dead = __refcount_dec_and_test(&peer->ref, &r);
+ trace_rxrpc_peer(debug_id, rxrpc_peer_put, r - 1, here);
+ if (dead)
__rxrpc_put_peer(peer);
}
}
@@ -455,11 +456,12 @@ void rxrpc_put_peer_locked(struct rxrpc_peer *peer)
{
const void *here = __builtin_return_address(0);
unsigned int debug_id = peer->debug_id;
- int n;
+ bool dead;
+ int r;

- n = atomic_dec_return(&peer->usage);
- trace_rxrpc_peer(debug_id, rxrpc_peer_put, n, here);
- if (n == 0) {
+ dead = __refcount_dec_and_test(&peer->ref, &r);
+ trace_rxrpc_peer(debug_id, rxrpc_peer_put, r - 1, here);
+ if (dead) {
hash_del_rcu(&peer->hash_link);
list_del_init(&peer->keepalive_link);
rxrpc_free_peer(peer);
@@ -481,7 +483,7 @@ void rxrpc_destroy_all_peers(struct rxrpc_net *rxnet)
hlist_for_each_entry(peer, &rxnet->peer_hash[i], hash_link) {
pr_err("Leaked peer %u {%u} %pISp\n",
peer->debug_id,
- atomic_read(&peer->usage),
+ refcount_read(&peer->ref),
&peer->srx.transport);
}
}
diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c
index 5a67955cc00f..245418943e01 100644
--- a/net/rxrpc/proc.c
+++ b/net/rxrpc/proc.c
@@ -101,7 +101,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
call->cid,
call->call_id,
rxrpc_is_service_call(call) ? "Svc" : "Clt",
- atomic_read(&call->usage),
+ refcount_read(&call->ref),
rxrpc_call_states[call->state],
call->abort_code,
call->debug_id,
@@ -183,7 +183,7 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
conn->service_id,
conn->proto.cid,
rxrpc_conn_is_service(conn) ? "Svc" : "Clt",
- atomic_read(&conn->usage),
+ refcount_read(&conn->ref),
rxrpc_conn_states[conn->state],
key_serial(conn->params.key),
atomic_read(&conn->serial),
@@ -233,7 +233,7 @@ static int rxrpc_peer_seq_show(struct seq_file *seq, void *v)
" %3u %5u %6llus %8u %8u\n",
lbuff,
rbuff,
- atomic_read(&peer->usage),
+ refcount_read(&peer->ref),
peer->cong_cwnd,
peer->mtu,
now - peer->last_tx_at,
@@ -328,3 +328,72 @@ const struct seq_operations rxrpc_peer_seq_ops = {
.stop = rxrpc_peer_seq_stop,
.show = rxrpc_peer_seq_show,
};
+
+/*
+ * Generate a list of extant virtual local endpoints in /proc/net/rxrpc/locals
+ */
+static int rxrpc_local_seq_show(struct seq_file *seq, void *v)
+{
+ struct rxrpc_local *local;
+ char lbuff[50];
+
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq,
+ "Proto Local "
+ " Use Act\n");
+ return 0;
+ }
+
+ local = hlist_entry(v, struct rxrpc_local, link);
+
+ sprintf(lbuff, "%pISpc", &local->srx.transport);
+
+ seq_printf(seq,
+ "UDP %-47.47s %3u %3u\n",
+ lbuff,
+ refcount_read(&local->ref),
+ atomic_read(&local->active_users));
+
+ return 0;
+}
+
+static void *rxrpc_local_seq_start(struct seq_file *seq, loff_t *_pos)
+ __acquires(rcu)
+{
+ struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
+ unsigned int n;
+
+ rcu_read_lock();
+
+ if (*_pos >= UINT_MAX)
+ return NULL;
+
+ n = *_pos;
+ if (n == 0)
+ return SEQ_START_TOKEN;
+
+ return seq_hlist_start_rcu(&rxnet->local_endpoints, n - 1);
+}
+
+static void *rxrpc_local_seq_next(struct seq_file *seq, void *v, loff_t *_pos)
+{
+ struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));
+
+ if (*_pos >= UINT_MAX)
+ return NULL;
+
+ return seq_hlist_next_rcu(v, &rxnet->local_endpoints, _pos);
+}
+
+static void rxrpc_local_seq_stop(struct seq_file *seq, void *v)
+ __releases(rcu)
+{
+ rcu_read_unlock();
+}
+
+const struct seq_operations rxrpc_local_seq_ops = {
+ .start = rxrpc_local_seq_start,
+ .next = rxrpc_local_seq_next,
+ .stop = rxrpc_local_seq_stop,
+ .show = rxrpc_local_seq_show,
+};
diff --git a/net/rxrpc/skbuff.c b/net/rxrpc/skbuff.c
index 0348d2bf6f7d..580a5acffee7 100644
--- a/net/rxrpc/skbuff.c
+++ b/net/rxrpc/skbuff.c
@@ -71,7 +71,6 @@ void rxrpc_free_skb(struct sk_buff *skb, enum rxrpc_skb_trace op)
const void *here = __builtin_return_address(0);
if (skb) {
int n;
- CHECK_SLAB_OKAY(&skb->users);
n = atomic_dec_return(select_skb_count(skb));
trace_rxrpc_skb(skb, op, refcount_read(&skb->users), n,
rxrpc_skb(skb)->rx_flags, here);
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 1e8ab4749c6c..4662a6ce8a7e 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -976,7 +976,7 @@ config NET_ACT_TUNNEL_KEY

config NET_ACT_CT
tristate "connection tracking tc action"
- depends on NET_CLS_ACT && NF_CONNTRACK && NF_NAT && NF_FLOW_TABLE
+ depends on NET_CLS_ACT && NF_CONNTRACK && (!NF_NAT || NF_NAT) && NF_FLOW_TABLE
help
Say Y here to allow sending the packets to conntrack module.

diff --git a/net/sched/act_connmark.c b/net/sched/act_connmark.c
index 94e78ac7a748..032ef927d0eb 100644
--- a/net/sched/act_connmark.c
+++ b/net/sched/act_connmark.c
@@ -62,7 +62,7 @@ static int tcf_connmark_act(struct sk_buff *skb, const struct tc_action *a,

c = nf_ct_get(skb, &ctinfo);
if (c) {
- skb->mark = c->mark;
+ skb->mark = READ_ONCE(c->mark);
/* using overlimits stats to count how many packets marked */
ca->tcf_qstats.overlimits++;
goto out;
@@ -82,7 +82,7 @@ static int tcf_connmark_act(struct sk_buff *skb, const struct tc_action *a,
c = nf_ct_tuplehash_to_ctrack(thash);
/* using overlimits stats to count how many packets marked */
ca->tcf_qstats.overlimits++;
- skb->mark = c->mark;
+ skb->mark = READ_ONCE(c->mark);
nf_ct_put(c);

out:
diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index d85fdefe5730..81a2d6cbfb44 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -177,7 +177,7 @@ static void tcf_ct_flow_table_add_action_meta(struct nf_conn *ct,
entry = tcf_ct_flow_table_flow_action_get_next(action);
entry->id = FLOW_ACTION_CT_METADATA;
#if IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)
- entry->ct_metadata.mark = ct->mark;
+ entry->ct_metadata.mark = READ_ONCE(ct->mark);
#endif
ctinfo = dir == IP_CT_DIR_ORIGINAL ? IP_CT_ESTABLISHED :
IP_CT_ESTABLISHED_REPLY;
@@ -856,9 +856,9 @@ static void tcf_ct_act_set_mark(struct nf_conn *ct, u32 mark, u32 mask)
if (!mask)
return;

- new_mark = mark | (ct->mark & ~(mask));
- if (ct->mark != new_mark) {
- ct->mark = new_mark;
+ new_mark = mark | (READ_ONCE(ct->mark) & ~(mask));
+ if (READ_ONCE(ct->mark) != new_mark) {
+ WRITE_ONCE(ct->mark, new_mark);
if (nf_ct_is_confirmed(ct))
nf_conntrack_event_cache(IPCT_MARK, ct);
}
diff --git a/net/sched/act_ctinfo.c b/net/sched/act_ctinfo.c
index 549374a2d008..2d75fe1223ac 100644
--- a/net/sched/act_ctinfo.c
+++ b/net/sched/act_ctinfo.c
@@ -33,7 +33,7 @@ static void tcf_ctinfo_dscp_set(struct nf_conn *ct, struct tcf_ctinfo *ca,
{
u8 dscp, newdscp;

- newdscp = (((ct->mark & cp->dscpmask) >> cp->dscpmaskshift) << 2) &
+ newdscp = (((READ_ONCE(ct->mark) & cp->dscpmask) >> cp->dscpmaskshift) << 2) &
~INET_ECN_MASK;

switch (proto) {
@@ -73,7 +73,7 @@ static void tcf_ctinfo_cpmark_set(struct nf_conn *ct, struct tcf_ctinfo *ca,
struct sk_buff *skb)
{
ca->stats_cpmark_set++;
- skb->mark = ct->mark & cp->cpmarkmask;
+ skb->mark = READ_ONCE(ct->mark) & cp->cpmarkmask;
}

static int tcf_ctinfo_act(struct sk_buff *skb, const struct tc_action *a,
@@ -131,7 +131,7 @@ static int tcf_ctinfo_act(struct sk_buff *skb, const struct tc_action *a,
}

if (cp->mode & CTINFO_MODE_DSCP)
- if (!cp->dscpstatemask || (ct->mark & cp->dscpstatemask))
+ if (!cp->dscpstatemask || (READ_ONCE(ct->mark) & cp->dscpstatemask))
tcf_ctinfo_dscp_set(ct, ca, cp, skb, wlen, proto);

if (cp->mode & CTINFO_MODE_CPMARK)
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index b3950963fc8f..dc29ac0f8d3f 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -384,6 +384,7 @@ static int sctp_prsctp_prune_unsent(struct sctp_association *asoc,
{
struct sctp_outq *q = &asoc->outqueue;
struct sctp_chunk *chk, *temp;
+ struct sctp_stream_out *sout;

q->sched->unsched_all(&asoc->stream);

@@ -398,12 +399,14 @@ static int sctp_prsctp_prune_unsent(struct sctp_association *asoc,
sctp_sched_dequeue_common(q, chk);
asoc->sent_cnt_removable--;
asoc->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
- if (chk->sinfo.sinfo_stream < asoc->stream.outcnt) {
- struct sctp_stream_out *streamout =
- SCTP_SO(&asoc->stream, chk->sinfo.sinfo_stream);

- streamout->ext->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
- }
+ sout = SCTP_SO(&asoc->stream, chk->sinfo.sinfo_stream);
+ sout->ext->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
+
+ /* clear out_curr if all frag chunks are pruned */
+ if (asoc->stream.out_curr == sout &&
+ list_is_last(&chk->frag_list, &chk->msg->chunks))
+ asoc->stream.out_curr = NULL;

msg_len -= chk->skb->truesize + sizeof(struct sctp_chunk);
sctp_chunk_free(chk);
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index e8630707901e..e8dcdf267c0c 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -211,7 +211,10 @@ void tipc_disc_rcv(struct net *net, struct sk_buff *skb,
u32 self;
int err;

- skb_linearize(skb);
+ if (skb_linearize(skb)) {
+ kfree_skb(skb);
+ return;
+ }
hdr = buf_msg(skb);

if (caps & TIPC_NODE_ID128)
diff --git a/net/tipc/topsrv.c b/net/tipc/topsrv.c
index d92ec92f0b71..e3b427a70398 100644
--- a/net/tipc/topsrv.c
+++ b/net/tipc/topsrv.c
@@ -176,7 +176,7 @@ static void tipc_conn_close(struct tipc_conn *con)
conn_put(con);
}

-static struct tipc_conn *tipc_conn_alloc(struct tipc_topsrv *s)
+static struct tipc_conn *tipc_conn_alloc(struct tipc_topsrv *s, struct socket *sock)
{
struct tipc_conn *con;
int ret;
@@ -202,10 +202,12 @@ static struct tipc_conn *tipc_conn_alloc(struct tipc_topsrv *s)
}
con->conid = ret;
s->idr_in_use++;
- spin_unlock_bh(&s->idr_lock);

set_bit(CF_CONNECTED, &con->flags);
con->server = s;
+ con->sock = sock;
+ conn_get(con);
+ spin_unlock_bh(&s->idr_lock);

return con;
}
@@ -467,7 +469,7 @@ static void tipc_topsrv_accept(struct work_struct *work)
ret = kernel_accept(lsock, &newsock, O_NONBLOCK);
if (ret < 0)
return;
- con = tipc_conn_alloc(srv);
+ con = tipc_conn_alloc(srv, newsock);
if (IS_ERR(con)) {
ret = PTR_ERR(con);
sock_release(newsock);
@@ -479,11 +481,11 @@ static void tipc_topsrv_accept(struct work_struct *work)
newsk->sk_data_ready = tipc_conn_data_ready;
newsk->sk_write_space = tipc_conn_write_space;
newsk->sk_user_data = con;
- con->sock = newsock;
write_unlock_bh(&newsk->sk_callback_lock);

/* Wake up receive process in case of 'SYN+' message */
newsk->sk_data_ready(newsk);
+ conn_put(con);
}
}

@@ -577,17 +579,17 @@ bool tipc_topsrv_kern_subscr(struct net *net, u32 port, u32 type, u32 lower,
sub.filter = filter;
*(u64 *)&sub.usr_handle = (u64)port;

- con = tipc_conn_alloc(tipc_topsrv(net));
+ con = tipc_conn_alloc(tipc_topsrv(net), NULL);
if (IS_ERR(con))
return false;

*conid = con->conid;
- con->sock = NULL;
rc = tipc_conn_rcv_sub(tipc_topsrv(net), con, &sub);
- if (rc >= 0)
- return true;
+ if (rc)
+ conn_put(con);
+
conn_put(con);
- return false;
+ return !rc;
}

void tipc_topsrv_kern_unsubscr(struct net *net, int conid)
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index c255aac6b816..8b8e957a69c3 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -97,6 +97,18 @@ static void xfrm_outer_mode_prep(struct xfrm_state *x, struct sk_buff *skb)
}
}

+static inline bool xmit_xfrm_check_overflow(struct sk_buff *skb)
+{
+ struct xfrm_offload *xo = xfrm_offload(skb);
+ __u32 seq = xo->seq.low;
+
+ seq += skb_shinfo(skb)->gso_segs;
+ if (unlikely(seq < xo->seq.low))
+ return true;
+
+ return false;
+}
+
struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features, bool *again)
{
int err;
@@ -134,7 +146,8 @@ struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t featur
return skb;
}

- if (skb_is_gso(skb) && unlikely(x->xso.dev != dev)) {
+ if (skb_is_gso(skb) && (unlikely(x->xso.dev != dev) ||
+ unlikely(xmit_xfrm_check_overflow(skb)))) {
struct sk_buff *segs;

/* Packet got rerouted, fixup features and segment it. */
diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c
index 9277d81b344c..49dd788859d8 100644
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -714,7 +714,7 @@ static int xfrm_replay_overflow_offload_esn(struct xfrm_state *x, struct sk_buff
oseq += skb_shinfo(skb)->gso_segs;
}

- if (unlikely(oseq < replay_esn->oseq)) {
+ if (unlikely(xo->seq.low < replay_esn->oseq)) {
XFRM_SKB_CB(skb)->seq.output.hi = ++oseq_hi;
xo->seq.hi = oseq_hi;
replay_esn->oseq_hi = oseq_hi;
diff --git a/sound/soc/codecs/hdac_hda.h b/sound/soc/codecs/hdac_hda.h
index d0efc5e254ae..da0ed74758b0 100644
--- a/sound/soc/codecs/hdac_hda.h
+++ b/sound/soc/codecs/hdac_hda.h
@@ -14,7 +14,7 @@ enum {
HDAC_HDMI_1_DAI_ID,
HDAC_HDMI_2_DAI_ID,
HDAC_HDMI_3_DAI_ID,
- HDAC_LAST_DAI_ID = HDAC_HDMI_3_DAI_ID,
+ HDAC_DAI_ID_NUM
};

struct hdac_hda_pcm {
@@ -24,7 +24,7 @@ struct hdac_hda_pcm {

struct hdac_hda_priv {
struct hda_codec codec;
- struct hdac_hda_pcm pcm[HDAC_LAST_DAI_ID];
+ struct hdac_hda_pcm pcm[HDAC_DAI_ID_NUM];
bool need_display_power;
};

diff --git a/sound/soc/codecs/max98373-i2c.c b/sound/soc/codecs/max98373-i2c.c
index ddb6436835d7..68497a4521dd 100644
--- a/sound/soc/codecs/max98373-i2c.c
+++ b/sound/soc/codecs/max98373-i2c.c
@@ -551,6 +551,10 @@ static int max98373_i2c_probe(struct i2c_client *i2c,
max98373->cache = devm_kcalloc(&i2c->dev, max98373->cache_num,
sizeof(*max98373->cache),
GFP_KERNEL);
+ if (!max98373->cache) {
+ ret = -ENOMEM;
+ return ret;
+ }

for (i = 0; i < max98373->cache_num; i++)
max98373->cache[i].reg = max98373_i2c_cache_reg[i];
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index dc56e6c6b668..3c5a4fe2fad6 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -1797,6 +1797,7 @@ static int sgtl5000_i2c_remove(struct i2c_client *client)
{
struct sgtl5000_priv *sgtl5000 = i2c_get_clientdata(client);

+ regmap_write(sgtl5000->regmap, SGTL5000_CHIP_CLK_CTRL, SGTL5000_CHIP_CLK_CTRL_DEFAULT);
regmap_write(sgtl5000->regmap, SGTL5000_CHIP_DIG_POWER, SGTL5000_DIG_POWER_DEFAULT);
regmap_write(sgtl5000->regmap, SGTL5000_CHIP_ANA_POWER, SGTL5000_ANA_POWER_DEFAULT);

diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index 44dcbf49456c..08ca410ef551 100644
--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c
@@ -1226,7 +1226,7 @@ static int fsl_asrc_probe(struct platform_device *pdev)
}

ret = pm_runtime_put_sync(&pdev->dev);
- if (ret < 0)
+ if (ret < 0 && ret != -ENOSYS)
goto err_pm_get_sync;

ret = devm_snd_soc_register_component(&pdev->dev, &fsl_asrc_component,
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index bda66b30e063..763f5f0592af 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -1070,7 +1070,7 @@ static int fsl_esai_probe(struct platform_device *pdev)
regmap_write(esai_priv->regmap, REG_ESAI_RSMB, 0);

ret = pm_runtime_put_sync(&pdev->dev);
- if (ret < 0)
+ if (ret < 0 && ret != -ENOSYS)
goto err_pm_get_sync;

/*
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 38f6362099d5..5ba06df2ace5 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -1000,6 +1000,7 @@ static int fsl_sai_runtime_resume(struct device *dev);
static int fsl_sai_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
struct fsl_sai *sai;
struct regmap *gpr;
struct resource *res;
@@ -1008,12 +1009,12 @@ static int fsl_sai_probe(struct platform_device *pdev)
int irq, ret, i;
int index;

- sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL);
+ sai = devm_kzalloc(dev, sizeof(*sai), GFP_KERNEL);
if (!sai)
return -ENOMEM;

sai->pdev = pdev;
- sai->soc_data = of_device_get_match_data(&pdev->dev);
+ sai->soc_data = of_device_get_match_data(dev);

sai->is_lsb_first = of_property_read_bool(np, "lsb-first");

@@ -1028,18 +1029,18 @@ static int fsl_sai_probe(struct platform_device *pdev)
ARRAY_SIZE(fsl_sai_reg_defaults_ofs8);
}

- sai->regmap = devm_regmap_init_mmio(&pdev->dev, base, &fsl_sai_regmap_config);
+ sai->regmap = devm_regmap_init_mmio(dev, base, &fsl_sai_regmap_config);
if (IS_ERR(sai->regmap)) {
- dev_err(&pdev->dev, "regmap init failed\n");
+ dev_err(dev, "regmap init failed\n");
return PTR_ERR(sai->regmap);
}

- sai->bus_clk = devm_clk_get(&pdev->dev, "bus");
+ sai->bus_clk = devm_clk_get(dev, "bus");
/* Compatible with old DTB cases */
if (IS_ERR(sai->bus_clk) && PTR_ERR(sai->bus_clk) != -EPROBE_DEFER)
- sai->bus_clk = devm_clk_get(&pdev->dev, "sai");
+ sai->bus_clk = devm_clk_get(dev, "sai");
if (IS_ERR(sai->bus_clk)) {
- dev_err(&pdev->dev, "failed to get bus clock: %ld\n",
+ dev_err(dev, "failed to get bus clock: %ld\n",
PTR_ERR(sai->bus_clk));
/* -EPROBE_DEFER */
return PTR_ERR(sai->bus_clk);
@@ -1047,9 +1048,9 @@ static int fsl_sai_probe(struct platform_device *pdev)

for (i = 1; i < FSL_SAI_MCLK_MAX; i++) {
sprintf(tmp, "mclk%d", i);
- sai->mclk_clk[i] = devm_clk_get(&pdev->dev, tmp);
+ sai->mclk_clk[i] = devm_clk_get(dev, tmp);
if (IS_ERR(sai->mclk_clk[i])) {
- dev_err(&pdev->dev, "failed to get mclk%d clock: %ld\n",
+ dev_err(dev, "failed to get mclk%d clock: %ld\n",
i + 1, PTR_ERR(sai->mclk_clk[i]));
sai->mclk_clk[i] = NULL;
}
@@ -1064,10 +1065,10 @@ static int fsl_sai_probe(struct platform_device *pdev)
if (irq < 0)
return irq;

- ret = devm_request_irq(&pdev->dev, irq, fsl_sai_isr, IRQF_SHARED,
+ ret = devm_request_irq(dev, irq, fsl_sai_isr, IRQF_SHARED,
np->name, sai);
if (ret) {
- dev_err(&pdev->dev, "failed to claim irq %u\n", irq);
+ dev_err(dev, "failed to claim irq %u\n", irq);
return ret;
}

@@ -1084,7 +1085,7 @@ static int fsl_sai_probe(struct platform_device *pdev)
if (of_find_property(np, "fsl,sai-synchronous-rx", NULL) &&
of_find_property(np, "fsl,sai-asynchronous", NULL)) {
/* error out if both synchronous and asynchronous are present */
- dev_err(&pdev->dev, "invalid binding for synchronous mode\n");
+ dev_err(dev, "invalid binding for synchronous mode\n");
return -EINVAL;
}

@@ -1105,7 +1106,7 @@ static int fsl_sai_probe(struct platform_device *pdev)
of_device_is_compatible(np, "fsl,imx6ul-sai")) {
gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr");
if (IS_ERR(gpr)) {
- dev_err(&pdev->dev, "cannot find iomuxc registers\n");
+ dev_err(dev, "cannot find iomuxc registers\n");
return PTR_ERR(gpr);
}

@@ -1123,23 +1124,23 @@ static int fsl_sai_probe(struct platform_device *pdev)
sai->dma_params_tx.maxburst = FSL_SAI_MAXBURST_TX;

platform_set_drvdata(pdev, sai);
- pm_runtime_enable(&pdev->dev);
- if (!pm_runtime_enabled(&pdev->dev)) {
- ret = fsl_sai_runtime_resume(&pdev->dev);
+ pm_runtime_enable(dev);
+ if (!pm_runtime_enabled(dev)) {
+ ret = fsl_sai_runtime_resume(dev);
if (ret)
goto err_pm_disable;
}

- ret = pm_runtime_get_sync(&pdev->dev);
+ ret = pm_runtime_get_sync(dev);
if (ret < 0) {
- pm_runtime_put_noidle(&pdev->dev);
+ pm_runtime_put_noidle(dev);
goto err_pm_get_sync;
}

/* Get sai version */
- ret = fsl_sai_check_version(&pdev->dev);
+ ret = fsl_sai_check_version(dev);
if (ret < 0)
- dev_warn(&pdev->dev, "Error reading SAI version: %d\n", ret);
+ dev_warn(dev, "Error reading SAI version: %d\n", ret);

/* Select MCLK direction */
if (of_find_property(np, "fsl,sai-mclk-direction-output", NULL) &&
@@ -1148,8 +1149,8 @@ static int fsl_sai_probe(struct platform_device *pdev)
FSL_SAI_MCTL_MCLK_EN, FSL_SAI_MCTL_MCLK_EN);
}

- ret = pm_runtime_put_sync(&pdev->dev);
- if (ret < 0)
+ ret = pm_runtime_put_sync(dev);
+ if (ret < 0 && ret != -ENOSYS)
goto err_pm_get_sync;

/*
@@ -1161,12 +1162,12 @@ static int fsl_sai_probe(struct platform_device *pdev)
if (ret)
goto err_pm_get_sync;
} else {
- ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+ ret = devm_snd_dmaengine_pcm_register(dev, NULL, 0);
if (ret)
goto err_pm_get_sync;
}

- ret = devm_snd_soc_register_component(&pdev->dev, &fsl_component,
+ ret = devm_snd_soc_register_component(dev, &fsl_component,
&sai->cpu_dai_drv, 1);
if (ret)
goto err_pm_get_sync;
@@ -1174,10 +1175,10 @@ static int fsl_sai_probe(struct platform_device *pdev)
return ret;

err_pm_get_sync:
- if (!pm_runtime_status_suspended(&pdev->dev))
- fsl_sai_runtime_suspend(&pdev->dev);
+ if (!pm_runtime_status_suspended(dev))
+ fsl_sai_runtime_suspend(dev);
err_pm_disable:
- pm_runtime_disable(&pdev->dev);
+ pm_runtime_disable(dev);

return ret;
}
diff --git a/sound/soc/intel/boards/bytcht_es8316.c b/sound/soc/intel/boards/bytcht_es8316.c
index 4d313d0d0f23..950457bcc28f 100644
--- a/sound/soc/intel/boards/bytcht_es8316.c
+++ b/sound/soc/intel/boards/bytcht_es8316.c
@@ -443,6 +443,13 @@ static const struct dmi_system_id byt_cht_es8316_quirk_table[] = {
| BYT_CHT_ES8316_INTMIC_IN2_MAP
| BYT_CHT_ES8316_JD_INVERTED),
},
+ { /* Nanote UMPC-01 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "RWC CO.,LTD"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "UMPC-01"),
+ },
+ .driver_data = (void *)BYT_CHT_ES8316_INTMIC_IN1_MAP,
+ },
{ /* Teclast X98 Plus II */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"),
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 48f71bb81a2f..f6dc71e8ea87 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -759,11 +759,6 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
ret = snd_soc_dai_startup(dai, substream);
if (ret < 0)
goto err;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dai->tx_mask = 0;
- else
- dai->rx_mask = 0;
}

/* Dynamic PCM DAI links compat checks use dynamic capabilities */
diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c
index e6078f50e508..1e9b4b1df69e 100644
--- a/sound/soc/stm/stm32_adfsdm.c
+++ b/sound/soc/stm/stm32_adfsdm.c
@@ -303,6 +303,11 @@ static int stm32_adfsdm_dummy_cb(const void *data, void *private)
return 0;
}

+static void stm32_adfsdm_cleanup(void *data)
+{
+ iio_channel_release_all_cb(data);
+}
+
static struct snd_soc_component_driver stm32_adfsdm_soc_platform = {
.open = stm32_adfsdm_pcm_open,
.close = stm32_adfsdm_pcm_close,
@@ -349,6 +354,12 @@ static int stm32_adfsdm_probe(struct platform_device *pdev)
if (IS_ERR(priv->iio_cb))
return PTR_ERR(priv->iio_cb);

+ ret = devm_add_action_or_reset(&pdev->dev, stm32_adfsdm_cleanup, priv->iio_cb);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Unable to add action\n");
+ return ret;
+ }
+
component = devm_kzalloc(&pdev->dev, sizeof(*component), GFP_KERNEL);
if (!component)
return -ENOMEM;
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 3bbc227769d0..092350eb5f4e 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -887,7 +887,8 @@ void snd_usb_endpoint_close(struct snd_usb_audio *chip,
usb_audio_dbg(chip, "Closing EP 0x%x (count %d)\n",
ep->ep_num, ep->opened);

- if (!--ep->iface_ref->opened)
+ if (!--ep->iface_ref->opened &&
+ !(chip->quirk_flags & QUIRK_FLAG_IFACE_SKIP_CLOSE))
endpoint_set_interface(chip, ep, false);

if (!--ep->opened) {
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 879d8b1f301c..2ae9ad993ff4 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1884,6 +1884,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
QUIRK_FLAG_GENERIC_IMPLICIT_FB),
DEVICE_FLG(0x2b53, 0x0031, /* Fiero SC-01 (firmware v1.1.0) */
QUIRK_FLAG_GENERIC_IMPLICIT_FB),
+ DEVICE_FLG(0x0525, 0xa4ad, /* Hamedal C20 usb camero */
+ QUIRK_FLAG_IFACE_SKIP_CLOSE),

/* Vendor matches */
VENDOR_FLG(0x045e, /* MS Lifecam */
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 39c3c61a7e49..ec06f441e890 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -169,6 +169,8 @@ extern bool snd_usb_skip_validation;
* Apply the generic implicit feedback sync mode (same as implicit_fb=1 option)
* QUIRK_FLAG_SKIP_IMPLICIT_FB
* Don't apply implicit feedback sync mode
+ * QUIRK_FLAG_IFACE_SKIP_CLOSE
+ * Don't closed interface during setting sample rate
*/

#define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0)
@@ -190,5 +192,6 @@ extern bool snd_usb_skip_validation;
#define QUIRK_FLAG_SET_IFACE_FIRST (1U << 16)
#define QUIRK_FLAG_GENERIC_IMPLICIT_FB (1U << 17)
#define QUIRK_FLAG_SKIP_IMPLICIT_FB (1U << 18)
+#define QUIRK_FLAG_IFACE_SKIP_CLOSE (1U << 19)

#endif /* __USBAUDIO_H */
diff --git a/tools/iio/iio_generic_buffer.c b/tools/iio/iio_generic_buffer.c
index 2491c54a5e4f..f8deae4e26a1 100644
--- a/tools/iio/iio_generic_buffer.c
+++ b/tools/iio/iio_generic_buffer.c
@@ -715,12 +715,12 @@ int main(int argc, char **argv)
continue;
}

- toread = buf_len;
} else {
usleep(timedelay);
- toread = 64;
}

+ toread = buf_len;
+
read_size = read(buf_fd, data, toread * scan_size);
if (read_size < 0) {
if (errno == EAGAIN) {
diff --git a/tools/testing/selftests/bpf/verifier/ref_tracking.c b/tools/testing/selftests/bpf/verifier/ref_tracking.c
index 3b6ee009c00b..4a768b130d61 100644
--- a/tools/testing/selftests/bpf/verifier/ref_tracking.c
+++ b/tools/testing/selftests/bpf/verifier/ref_tracking.c
@@ -905,3 +905,39 @@
.result_unpriv = REJECT,
.errstr_unpriv = "unknown func",
},
+{
+ "reference tracking: try to leak released ptr reg",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -4),
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_9, BPF_REG_0),
+
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_LD_MAP_FD(BPF_REG_1, 0),
+ BPF_MOV64_IMM(BPF_REG_2, 8),
+ BPF_MOV64_IMM(BPF_REG_3, 0),
+ BPF_EMIT_CALL(BPF_FUNC_ringbuf_reserve),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+ BPF_MOV64_IMM(BPF_REG_2, 0),
+ BPF_EMIT_CALL(BPF_FUNC_ringbuf_discard),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+
+ BPF_STX_MEM(BPF_DW, BPF_REG_9, BPF_REG_8, 0),
+ BPF_EXIT_INSN()
+ },
+ .fixup_map_array_48b = { 4 },
+ .fixup_map_ringbuf = { 11 },
+ .result = ACCEPT,
+ .result_unpriv = REJECT,
+ .errstr_unpriv = "R8 !read_ok"
+},
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c
index 89c4753c2760..95e81d557b08 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -14,6 +14,7 @@
#include <strings.h>
#include <signal.h>
#include <unistd.h>
+#include <time.h>

#include <sys/poll.h>
#include <sys/sendfile.h>
@@ -64,6 +65,7 @@ static int cfg_sndbuf;
static int cfg_rcvbuf;
static bool cfg_join;
static bool cfg_remove;
+static unsigned int cfg_time;
static unsigned int cfg_do_w;
static int cfg_wait;
static uint32_t cfg_mark;
@@ -78,9 +80,10 @@ static struct cfg_cmsg_types cfg_cmsg_types;
static void die_usage(void)
{
fprintf(stderr, "Usage: mptcp_connect [-6] [-u] [-s MPTCP|TCP] [-p port] [-m mode]"
- "[-l] [-w sec] connect_address\n");
+ "[-l] [-w sec] [-t num] [-T num] connect_address\n");
fprintf(stderr, "\t-6 use ipv6\n");
fprintf(stderr, "\t-t num -- set poll timeout to num\n");
+ fprintf(stderr, "\t-T num -- set expected runtime to num ms\n");
fprintf(stderr, "\t-S num -- set SO_SNDBUF to num\n");
fprintf(stderr, "\t-R num -- set SO_RCVBUF to num\n");
fprintf(stderr, "\t-p num -- use port num\n");
@@ -448,7 +451,7 @@ static void set_nonblock(int fd)
fcntl(fd, F_SETFL, flags | O_NONBLOCK);
}

-static int copyfd_io_poll(int infd, int peerfd, int outfd)
+static int copyfd_io_poll(int infd, int peerfd, int outfd, bool *in_closed_after_out)
{
struct pollfd fds = {
.fd = peerfd,
@@ -487,9 +490,11 @@ static int copyfd_io_poll(int infd, int peerfd, int outfd)
*/
fds.events &= ~POLLIN;

- if ((fds.events & POLLOUT) == 0)
+ if ((fds.events & POLLOUT) == 0) {
+ *in_closed_after_out = true;
/* and nothing more to send */
break;
+ }

/* Else, still have data to transmit */
} else if (len < 0) {
@@ -547,7 +552,7 @@ static int copyfd_io_poll(int infd, int peerfd, int outfd)
}

/* leave some time for late join/announce */
- if (cfg_join || cfg_remove)
+ if (cfg_remove)
usleep(cfg_wait);

close(peerfd);
@@ -646,7 +651,7 @@ static int do_sendfile(int infd, int outfd, unsigned int count)
}

static int copyfd_io_mmap(int infd, int peerfd, int outfd,
- unsigned int size)
+ unsigned int size, bool *in_closed_after_out)
{
int err;

@@ -664,13 +669,14 @@ static int copyfd_io_mmap(int infd, int peerfd, int outfd,
shutdown(peerfd, SHUT_WR);

err = do_recvfile(peerfd, outfd);
+ *in_closed_after_out = true;
}

return err;
}

static int copyfd_io_sendfile(int infd, int peerfd, int outfd,
- unsigned int size)
+ unsigned int size, bool *in_closed_after_out)
{
int err;

@@ -685,6 +691,7 @@ static int copyfd_io_sendfile(int infd, int peerfd, int outfd,
if (err)
return err;
err = do_recvfile(peerfd, outfd);
+ *in_closed_after_out = true;
}

return err;
@@ -692,27 +699,62 @@ static int copyfd_io_sendfile(int infd, int peerfd, int outfd,

static int copyfd_io(int infd, int peerfd, int outfd)
{
+ bool in_closed_after_out = false;
+ struct timespec start, end;
int file_size;
+ int ret;
+
+ if (cfg_time && (clock_gettime(CLOCK_MONOTONIC, &start) < 0))
+ xerror("can not fetch start time %d", errno);

switch (cfg_mode) {
case CFG_MODE_POLL:
- return copyfd_io_poll(infd, peerfd, outfd);
+ ret = copyfd_io_poll(infd, peerfd, outfd, &in_closed_after_out);
+ break;
+
case CFG_MODE_MMAP:
file_size = get_infd_size(infd);
if (file_size < 0)
return file_size;
- return copyfd_io_mmap(infd, peerfd, outfd, file_size);
+ ret = copyfd_io_mmap(infd, peerfd, outfd, file_size, &in_closed_after_out);
+ break;
+
case CFG_MODE_SENDFILE:
file_size = get_infd_size(infd);
if (file_size < 0)
return file_size;
- return copyfd_io_sendfile(infd, peerfd, outfd, file_size);
+ ret = copyfd_io_sendfile(infd, peerfd, outfd, file_size, &in_closed_after_out);
+ break;
+
+ default:
+ fprintf(stderr, "Invalid mode %d\n", cfg_mode);
+
+ die_usage();
+ return 1;
}

- fprintf(stderr, "Invalid mode %d\n", cfg_mode);
+ if (ret)
+ return ret;

- die_usage();
- return 1;
+ if (cfg_time) {
+ unsigned int delta_ms;
+
+ if (clock_gettime(CLOCK_MONOTONIC, &end) < 0)
+ xerror("can not fetch end time %d", errno);
+ delta_ms = (end.tv_sec - start.tv_sec) * 1000 + (end.tv_nsec - start.tv_nsec) / 1000000;
+ if (delta_ms > cfg_time) {
+ xerror("transfer slower than expected! runtime %d ms, expected %d ms",
+ delta_ms, cfg_time);
+ }
+
+ /* show the runtime only if this end shutdown(wr) before receiving the EOF,
+ * (that is, if this end got the longer runtime)
+ */
+ if (in_closed_after_out)
+ fprintf(stderr, "%d", delta_ms);
+ }
+
+ return 0;
}

static void check_sockaddr(int pf, struct sockaddr_storage *ss,
@@ -1005,12 +1047,11 @@ static void parse_opts(int argc, char **argv)
{
int c;

- while ((c = getopt(argc, argv, "6jr:lp:s:hut:m:S:R:w:M:P:c:")) != -1) {
+ while ((c = getopt(argc, argv, "6jr:lp:s:hut:T:m:S:R:w:M:P:c:")) != -1) {
switch (c) {
case 'j':
cfg_join = true;
cfg_mode = CFG_MODE_POLL;
- cfg_wait = 400000;
break;
case 'r':
cfg_remove = true;
@@ -1043,6 +1084,9 @@ static void parse_opts(int argc, char **argv)
if (poll_timeout <= 0)
poll_timeout = -1;
break;
+ case 'T':
+ cfg_time = atoi(optarg);
+ break;
case 'm':
cfg_mode = parse_mode(optarg);
break;
diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh
index 910d8126af8f..7df4900dfaf7 100755
--- a/tools/testing/selftests/net/mptcp/simult_flows.sh
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -51,7 +51,7 @@ setup()
sout=$(mktemp)
cout=$(mktemp)
capout=$(mktemp)
- size=$((2048 * 4096))
+ size=$((2 * 2048 * 4096))
dd if=/dev/zero of=$small bs=4096 count=20 >/dev/null 2>&1
dd if=/dev/zero of=$large bs=4096 count=$((size / 4096)) >/dev/null 2>&1

@@ -161,17 +161,15 @@ do_transfer()

timeout ${timeout_test} \
ip netns exec ${ns3} \
- ./mptcp_connect -jt ${timeout_poll} -l -p $port \
+ ./mptcp_connect -jt ${timeout_poll} -l -p $port -T $time \
0.0.0.0 < "$sin" > "$sout" &
local spid=$!

wait_local_port_listen "${ns3}" "${port}"

- local start
- start=$(date +%s%3N)
timeout ${timeout_test} \
ip netns exec ${ns1} \
- ./mptcp_connect -jt ${timeout_poll} -p $port \
+ ./mptcp_connect -jt ${timeout_poll} -p $port -T $time \
10.0.3.3 < "$cin" > "$cout" &
local cpid=$!

@@ -180,27 +178,20 @@ do_transfer()
wait $spid
local rets=$?

- local stop
- stop=$(date +%s%3N)
-
if $capture; then
sleep 1
kill ${cappid_listener}
kill ${cappid_connector}
fi

- local duration
- duration=$((stop-start))
-
cmp $sin $cout > /dev/null 2>&1
local cmps=$?
cmp $cin $sout > /dev/null 2>&1
local cmpc=$?

- printf "%16s" "$duration max $max_time "
+ printf "%-16s" " max $max_time "
if [ $retc -eq 0 ] && [ $rets -eq 0 ] && \
- [ $cmpc -eq 0 ] && [ $cmps -eq 0 ] && \
- [ $duration -lt $max_time ]; then
+ [ $cmpc -eq 0 ] && [ $cmps -eq 0 ]; then
echo "[ OK ]"
cat "$capout"
return 0
@@ -244,23 +235,25 @@ run_test()
tc -n $ns2 qdisc add dev ns2eth1 root netem rate ${rate1}mbit $delay1
tc -n $ns2 qdisc add dev ns2eth2 root netem rate ${rate2}mbit $delay2

- # time is measure in ms
- local time=$((size * 8 * 1000 / (( $rate1 + $rate2) * 1024 *1024) ))
+ # time is measured in ms, account for transfer size, aggregated link speed
+ # and header overhead (10%)
+ # ms byte -> bit 10% mbit -> kbit -> bit 10%
+ local time=$((1000 * size * 8 * 10 / ((rate1 + rate2) * 1000 * 1000 * 9) ))

# mptcp_connect will do some sleeps to allow the mp_join handshake
- # completion
- time=$((time + 1350))
+ # completion (see mptcp_connect): 200ms on each side, add some slack
+ time=$((time + 450))

- printf "%-50s" "$msg"
- do_transfer $small $large $((time * 11 / 10))
+ printf "%-60s" "$msg"
+ do_transfer $small $large $time
lret=$?
if [ $lret -ne 0 ]; then
ret=$lret
[ $bail -eq 0 ] || exit $ret
fi

- printf "%-50s" "$msg - reverse direction"
- do_transfer $large $small $((time * 11 / 10))
+ printf "%-60s" "$msg - reverse direction"
+ do_transfer $large $small $time
lret=$?
if [ $lret -ne 0 ]; then
ret=$lret