Re: Linux 5.15.166

Greg Kroah-Hartman
2024-09-04T11:41:59Z

diff --git a/Makefile b/Makefile
index 2105600c8d7c..747bfa4f1a8b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 15
-SUBLEVEL = 165
+SUBLEVEL = 166
EXTRAVERSION =
NAME = Trick or Treat

diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
index fdfecf0991ce..5d88ae2ae490 100644
--- a/arch/arm64/kernel/acpi_numa.c
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -27,7 +27,7 @@

#include <asm/numa.h>

-static int acpi_early_node_map[NR_CPUS] __initdata = { NUMA_NO_NODE };
+static int acpi_early_node_map[NR_CPUS] __initdata = { [0 ... NR_CPUS - 1] = NUMA_NO_NODE };

int __init acpi_numa_get_nid(unsigned int cpu)
{
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index be5f85b0a24d..6a9028bfd043 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -364,9 +364,6 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p)
smp_init_cpus();
smp_build_mpidr_hash();

- /* Init percpu seeds for random tags after cpus are set up. */
- kasan_init_sw_tags();
-
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
/*
* Make sure init_thread_info.ttbr0 always generates translation
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index bc29cc044a4d..47684a03c42f 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -464,6 +464,8 @@ void __init smp_prepare_boot_cpu(void)
init_gic_priority_masking();

kasan_init_hw_tags();
+ /* Init percpu seeds for random tags after cpus are set up. */
+ kasan_init_sw_tags();
}

static u64 __init of_get_cpu_mpidr(struct device_node *dn)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index d00170d7ddf5..1732a804069c 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -30,6 +30,7 @@
#include <trace/events/kvm.h>

#include "sys_regs.h"
+#include "vgic/vgic.h"

#include "trace.h"

@@ -203,6 +204,11 @@ static bool access_gic_sgi(struct kvm_vcpu *vcpu,
{
bool g1;

+ if (!kvm_has_gicv3(vcpu->kvm)) {
+ kvm_inject_undefined(vcpu);
+ return false;
+ }
+
if (!p->is_write)
return read_from_write_only(vcpu, p, r);

diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h
index 640249950acf..2be4b0759f5b 100644
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -324,4 +324,11 @@ void vgic_v4_configure_vsgis(struct kvm *kvm);
void vgic_v4_get_vlpi_state(struct vgic_irq *irq, bool *val);
int vgic_v4_request_vpe_irq(struct kvm_vcpu *vcpu, int irq);

+static inline bool kvm_has_gicv3(struct kvm *kvm)
+{
+ return (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif) &&
+ irqchip_in_kernel(kvm) &&
+ kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3);
+}
+
#endif
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 8ebcc298bf75..f258c5f15f90 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1782,12 +1782,16 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
c->ases |= (MIPS_ASE_LOONGSON_MMI | MIPS_ASE_LOONGSON_CAM |
MIPS_ASE_LOONGSON_EXT | MIPS_ASE_LOONGSON_EXT2);
c->ases &= ~MIPS_ASE_VZ; /* VZ of Loongson-3A2000/3000 is incomplete */
+ change_c0_config6(LOONGSON_CONF6_EXTIMER | LOONGSON_CONF6_INTIMER,
+ LOONGSON_CONF6_INTIMER);
break;
case PRID_IMP_LOONGSON_64G:
__cpu_name[cpu] = "ICT Loongson-3";
set_elf_platform(cpu, "loongson3a");
set_isa(c, MIPS_CPU_ISA_M64R2);
decode_cpucfg(c);
+ change_c0_config6(LOONGSON_CONF6_EXTIMER | LOONGSON_CONF6_INTIMER,
+ LOONGSON_CONF6_INTIMER);
break;
default:
panic("Unknown Loongson Processor ID!");
diff --git a/arch/mips/loongson64/reset.c b/arch/mips/loongson64/reset.c
index 2a8e4cd72605..e420800043b0 100644
--- a/arch/mips/loongson64/reset.c
+++ b/arch/mips/loongson64/reset.c
@@ -11,7 +11,6 @@
#include <linux/init.h>
#include <linux/kexec.h>
#include <linux/pm.h>
-#include <linux/reboot.h>
#include <linux/slab.h>

#include <asm/bootinfo.h>
@@ -22,21 +21,36 @@
#include <loongson.h>
#include <boot_param.h>

-static int firmware_restart(struct sys_off_data *unusedd)
+static void loongson_restart(char *command)
{

void (*fw_restart)(void) = (void *)loongson_sysconf.restart_addr;

fw_restart();
- return NOTIFY_DONE;
+ while (1) {
+ if (cpu_wait)
+ cpu_wait();
+ }
}

-static int firmware_poweroff(struct sys_off_data *unused)
+static void loongson_poweroff(void)
{
void (*fw_poweroff)(void) = (void *)loongson_sysconf.poweroff_addr;

fw_poweroff();
- return NOTIFY_DONE;
+ while (1) {
+ if (cpu_wait)
+ cpu_wait();
+ }
+}
+
+static void loongson_halt(void)
+{
+ pr_notice("\n\n** You can safely turn off the power now **\n\n");
+ while (1) {
+ if (cpu_wait)
+ cpu_wait();
+ }
}

#ifdef CONFIG_KEXEC
@@ -140,17 +154,9 @@ static void loongson_crash_shutdown(struct pt_regs *regs)

static int __init mips_reboot_setup(void)
{
- if (loongson_sysconf.restart_addr) {
- register_sys_off_handler(SYS_OFF_MODE_RESTART,
- SYS_OFF_PRIO_FIRMWARE,
- firmware_restart, NULL);
- }
-
- if (loongson_sysconf.poweroff_addr) {
- register_sys_off_handler(SYS_OFF_MODE_POWER_OFF,
- SYS_OFF_PRIO_FIRMWARE,
- firmware_poweroff, NULL);
- }
+ _machine_restart = loongson_restart;
+ _machine_halt = loongson_halt;
+ pm_power_off = loongson_poweroff;

#ifdef CONFIG_KEXEC
kexec_argv = kmalloc(KEXEC_ARGV_SIZE, GFP_KERNEL);
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index 0cd04d936a7a..f2fe45d3094d 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -270,6 +270,9 @@ void calibrate_delay(void)

void __init setup_arch(char **cmdline_p)
{
+ /* setup memblock allocator */
+ setup_memory();
+
unflatten_and_copy_device_tree();

setup_cpuinfo();
@@ -293,9 +296,6 @@ void __init setup_arch(char **cmdline_p)
}
#endif

- /* setup memblock allocator */
- setup_memory();
-
/* paging_init() sets up the MMU and marks all pages as reserved */
paging_init();

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 5d9044e65a1a..04127377b7be 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -518,7 +518,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)

old_regs = set_irq_regs(regs);
local_irq_disable();
- irq_enter();
+ irq_enter_rcu();

eirr_val = mfctl(23) & cpu_eiem & per_cpu(local_ack_eiem, cpu);
if (!eirr_val)
@@ -553,7 +553,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
#endif /* CONFIG_IRQSTACKS */

out:
- irq_exit();
+ irq_exit_rcu();
set_irq_regs(old_regs);
return;

diff --git a/arch/powerpc/boot/simple_alloc.c b/arch/powerpc/boot/simple_alloc.c
index 65ec135d0157..bc99f75b8582 100644
--- a/arch/powerpc/boot/simple_alloc.c
+++ b/arch/powerpc/boot/simple_alloc.c
@@ -114,8 +114,11 @@ static void *simple_realloc(void *ptr, unsigned long size)
return ptr;

new = simple_malloc(size);
- memcpy(new, ptr, p->size);
- simple_free(ptr);
+ if (new) {
+ memcpy(new, ptr, p->size);
+ simple_free(ptr);
+ }
+
return new;
}

diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c
index 7d13d2ef5a90..66de291b27d0 100644
--- a/arch/powerpc/sysdev/xics/icp-native.c
+++ b/arch/powerpc/sysdev/xics/icp-native.c
@@ -235,6 +235,8 @@ static int __init icp_native_map_one_cpu(int hw_id, unsigned long addr,
rname = kasprintf(GFP_KERNEL, "CPU %d [0x%x] Interrupt Presentation",
cpu, hw_id);

+ if (!rname)
+ return -ENOMEM;
if (!request_mem_region(addr, size, rname)) {
pr_warn("icp_native: Could not reserve ICP MMIO for CPU %d, interrupt server #0x%x\n",
cpu, hw_id);
diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h
index fe92a4caf5ec..56df0bc01e3a 100644
--- a/arch/s390/include/asm/uv.h
+++ b/arch/s390/include/asm/uv.h
@@ -312,7 +312,10 @@ static inline int share(unsigned long addr, u16 cmd)

if (!uv_call(0, (u64)&uvcb))
return 0;
- return -EINVAL;
+ pr_err("%s UVC failed (rc: 0x%x, rrc: 0x%x), possible hypervisor bug.\n",
+ uvcb.header.cmd == UVC_CMD_SET_SHARED_ACCESS ? "Share" : "Unshare",
+ uvcb.header.rc, uvcb.header.rrc);
+ panic("System security cannot be guaranteed unless the system panics now.\n");
}

/*
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 9857cb046726..9898582f44da 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -250,15 +250,9 @@ static inline void save_vector_registers(void)
#endif
}

-static inline void setup_control_registers(void)
+static inline void setup_low_address_protection(void)
{
- unsigned long reg;
-
- __ctl_store(reg, 0, 0);
- reg |= CR0_LOW_ADDRESS_PROTECTION;
- reg |= CR0_EMERGENCY_SIGNAL_SUBMASK;
- reg |= CR0_EXTERNAL_CALL_SUBMASK;
- __ctl_load(reg, 0, 0);
+ __ctl_set_bit(0, 28);
}

static inline void setup_access_registers(void)
@@ -311,7 +305,7 @@ void __init startup_init(void)
save_vector_registers();
setup_topology();
sclp_early_detect();
- setup_control_registers();
+ setup_low_address_protection();
setup_access_registers();
lockdep_on();
}
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 35af70ed58fc..48f67a69d119 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -1003,12 +1003,12 @@ void __init smp_fill_possible_mask(void)

void __init smp_prepare_cpus(unsigned int max_cpus)
{
- /* request the 0x1201 emergency signal external interrupt */
if (register_external_irq(EXT_IRQ_EMERGENCY_SIG, do_ext_call_interrupt))
panic("Couldn't request external interrupt 0x1201");
- /* request the 0x1202 external call external interrupt */
+ ctl_set_bit(0, 14);
if (register_external_irq(EXT_IRQ_EXTERNAL_CALL, do_ext_call_interrupt))
panic("Couldn't request external interrupt 0x1202");
+ ctl_set_bit(0, 13);
}

void __init smp_prepare_boot_cpu(void)
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index e6b28c689e9a..720d99520316 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -937,7 +937,10 @@ unsigned long arch_align_stack(unsigned long sp)

unsigned long arch_randomize_brk(struct mm_struct *mm)
{
- return randomize_page(mm->brk, 0x02000000);
+ if (mmap_is_ia32())
+ return randomize_page(mm->brk, SZ_32M);
+
+ return randomize_page(mm->brk, SZ_1G);
}

/*
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 31a0818b4440..8c85d2250899 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5391,6 +5391,9 @@ static void ata_host_release(struct kref *kref)
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];

+ if (!ap)
+ continue;
+
kfree(ap->pmp_link);
kfree(ap->slave_link);
kfree(ap);
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 2daf50d4cd47..7810f974b2ca 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -1118,8 +1118,8 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
rpp->len += skb->len;

if (stat & SAR_RSQE_EPDU) {
+ unsigned int len, truesize;
unsigned char *l1l2;
- unsigned int len;

l1l2 = (unsigned char *) ((unsigned long) skb->data + skb->len - 6);

@@ -1189,14 +1189,15 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
ATM_SKB(skb)->vcc = vcc;
__net_timestamp(skb);

+ truesize = skb->truesize;
vcc->push(vcc, skb);
atomic_inc(&vcc->stats->rx);

- if (skb->truesize > SAR_FB_SIZE_3)
+ if (truesize > SAR_FB_SIZE_3)
add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
- else if (skb->truesize > SAR_FB_SIZE_2)
+ else if (truesize > SAR_FB_SIZE_2)
add_rx_skb(card, 2, SAR_FB_SIZE_2, 1);
- else if (skb->truesize > SAR_FB_SIZE_1)
+ else if (truesize > SAR_FB_SIZE_1)
add_rx_skb(card, 1, SAR_FB_SIZE_1, 1);
else
add_rx_skb(card, 0, SAR_FB_SIZE_0, 1);
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 2d960a5e3679..be51528afed9 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -768,7 +768,8 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file *file,
break;

case HCIUARTGETPROTO:
- if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
+ if (test_bit(HCI_UART_PROTO_SET, &hu->flags) &&
+ test_bit(HCI_UART_PROTO_READY, &hu->flags))
err = hu->proto->id;
else
err = -EUNATCH;
diff --git a/drivers/char/xillybus/xillyusb.c b/drivers/char/xillybus/xillyusb.c
index 39bcbfd908b4..3a2a0fb3d928 100644
--- a/drivers/char/xillybus/xillyusb.c
+++ b/drivers/char/xillybus/xillyusb.c
@@ -50,6 +50,7 @@ MODULE_LICENSE("GPL v2");
static const char xillyname[] = "xillyusb";

static unsigned int fifo_buf_order;
+static struct workqueue_struct *wakeup_wq;

#define USB_VENDOR_ID_XILINX 0x03fd
#define USB_VENDOR_ID_ALTERA 0x09fb
@@ -561,10 +562,6 @@ static void cleanup_dev(struct kref *kref)
* errors if executed. The mechanism relies on that xdev->error is assigned
* a non-zero value by report_io_error() prior to queueing wakeup_all(),
* which prevents bulk_in_work() from calling process_bulk_in().
- *
- * The fact that wakeup_all() and bulk_in_work() are queued on the same
- * workqueue makes their concurrent execution very unlikely, however the
- * kernel's API doesn't seem to ensure this strictly.
*/

static void wakeup_all(struct work_struct *work)
@@ -619,7 +616,7 @@ static void report_io_error(struct xillyusb_dev *xdev,

if (do_once) {
kref_get(&xdev->kref); /* xdev is used by work item */
- queue_work(xdev->workq, &xdev->wakeup_workitem);
+ queue_work(wakeup_wq, &xdev->wakeup_workitem);
}
}

@@ -1892,6 +1889,13 @@ static const struct file_operations xillyusb_fops = {

static int xillyusb_setup_base_eps(struct xillyusb_dev *xdev)
{
+ struct usb_device *udev = xdev->udev;
+
+ /* Verify that device has the two fundamental bulk in/out endpoints */
+ if (usb_pipe_type_check(udev, usb_sndbulkpipe(udev, MSG_EP_NUM)) ||
+ usb_pipe_type_check(udev, usb_rcvbulkpipe(udev, IN_EP_NUM)))
+ return -ENODEV;
+
xdev->msg_ep = endpoint_alloc(xdev, MSG_EP_NUM | USB_DIR_OUT,
bulk_out_work, 1, 2);
if (!xdev->msg_ep)
@@ -1921,14 +1925,15 @@ static int setup_channels(struct xillyusb_dev *xdev,
__le16 *chandesc,
int num_channels)
{
- struct xillyusb_channel *chan;
+ struct usb_device *udev = xdev->udev;
+ struct xillyusb_channel *chan, *new_channels;
int i;

chan = kcalloc(num_channels, sizeof(*chan), GFP_KERNEL);
if (!chan)
return -ENOMEM;

- xdev->channels = chan;
+ new_channels = chan;

for (i = 0; i < num_channels; i++, chan++) {
unsigned int in_desc = le16_to_cpu(*chandesc++);
@@ -1957,6 +1962,15 @@ static int setup_channels(struct xillyusb_dev *xdev,
*/

if ((out_desc & 0x80) && i < 14) { /* Entry is valid */
+ if (usb_pipe_type_check(udev,
+ usb_sndbulkpipe(udev, i + 2))) {
+ dev_err(xdev->dev,
+ "Missing BULK OUT endpoint %d\n",
+ i + 2);
+ kfree(new_channels);
+ return -ENODEV;
+ }
+
chan->writable = 1;
chan->out_synchronous = !!(out_desc & 0x40);
chan->out_seekable = !!(out_desc & 0x20);
@@ -1966,6 +1980,7 @@ static int setup_channels(struct xillyusb_dev *xdev,
}
}

+ xdev->channels = new_channels;
return 0;
}

@@ -2082,9 +2097,11 @@ static int xillyusb_discovery(struct usb_interface *interface)
* just after responding with the IDT, there is no reason for any
* work item to be running now. To be sure that xdev->channels
* is updated on anything that might run in parallel, flush the
- * workqueue, which rarely does anything.
+ * device's workqueue and the wakeup work item. This rarely
+ * does anything.
*/
flush_workqueue(xdev->workq);
+ flush_work(&xdev->wakeup_workitem);

xdev->num_channels = num_channels;

@@ -2242,6 +2259,10 @@ static int __init xillyusb_init(void)
{
int rc = 0;

+ wakeup_wq = alloc_workqueue(xillyname, 0, 0);
+ if (!wakeup_wq)
+ return -ENOMEM;
+
if (LOG2_INITIAL_FIFO_BUF_SIZE > PAGE_SHIFT)
fifo_buf_order = LOG2_INITIAL_FIFO_BUF_SIZE - PAGE_SHIFT;
else
@@ -2249,12 +2270,17 @@ static int __init xillyusb_init(void)

rc = usb_register(&xillyusb_driver);

+ if (rc)
+ destroy_workqueue(wakeup_wq);
+
return rc;
}

static void __exit xillyusb_exit(void)
{
usb_deregister(&xillyusb_driver);
+
+ destroy_workqueue(wakeup_wq);
}

module_init(xillyusb_init);
diff --git a/drivers/clocksource/arm_global_timer.c b/drivers/clocksource/arm_global_timer.c
index e1c773bb5535..22a58d35a41f 100644
--- a/drivers/clocksource/arm_global_timer.c
+++ b/drivers/clocksource/arm_global_timer.c
@@ -290,18 +290,17 @@ static int gt_clk_rate_change_cb(struct notifier_block *nb,
switch (event) {
case PRE_RATE_CHANGE:
{
- int psv;
+ unsigned long psv;

- psv = DIV_ROUND_CLOSEST(ndata->new_rate,
- gt_target_rate);
-
- if (abs(gt_target_rate - (ndata->new_rate / psv)) > MAX_F_ERR)
+ psv = DIV_ROUND_CLOSEST(ndata->new_rate, gt_target_rate);
+ if (!psv ||
+ abs(gt_target_rate - (ndata->new_rate / psv)) > MAX_F_ERR)
return NOTIFY_BAD;

psv--;

/* prescaler within legal range? */
- if (psv < 0 || psv > GT_CONTROL_PRESCALER_MAX)
+ if (psv > GT_CONTROL_PRESCALER_MAX)
return NOTIFY_BAD;

/*
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 7ab83fe601ed..0beafcee7267 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/log2.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -624,12 +625,10 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
struct dw_desc *prev;
struct dw_desc *first;
u32 ctllo, ctlhi;
- u8 m_master = dwc->dws.m_master;
- u8 lms = DWC_LLP_LMS(m_master);
+ u8 lms = DWC_LLP_LMS(dwc->dws.m_master);
dma_addr_t reg;
unsigned int reg_width;
unsigned int mem_width;
- unsigned int data_width = dw->pdata->data_width[m_master];
unsigned int i;
struct scatterlist *sg;
size_t total_len = 0;
@@ -663,7 +662,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
mem = sg_dma_address(sg);
len = sg_dma_len(sg);

- mem_width = __ffs(data_width | mem | len);
+ mem_width = __ffs(sconfig->src_addr_width | mem | len);

slave_sg_todev_fill_desc:
desc = dwc_desc_get(dwc);
@@ -723,7 +722,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
lli_write(desc, sar, reg);
lli_write(desc, dar, mem);
lli_write(desc, ctlhi, ctlhi);
- mem_width = __ffs(data_width | mem);
+ mem_width = __ffs(sconfig->dst_addr_width | mem);
lli_write(desc, ctllo, ctllo | DWC_CTLL_DST_WIDTH(mem_width));
desc->len = dlen;

@@ -783,17 +782,93 @@ bool dw_dma_filter(struct dma_chan *chan, void *param)
}
EXPORT_SYMBOL_GPL(dw_dma_filter);

+static int dwc_verify_p_buswidth(struct dma_chan *chan)
+{
+ struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
+ struct dw_dma *dw = to_dw_dma(chan->device);
+ u32 reg_width, max_width;
+
+ if (dwc->dma_sconfig.direction == DMA_MEM_TO_DEV)
+ reg_width = dwc->dma_sconfig.dst_addr_width;
+ else if (dwc->dma_sconfig.direction == DMA_DEV_TO_MEM)
+ reg_width = dwc->dma_sconfig.src_addr_width;
+ else /* DMA_MEM_TO_MEM */
+ return 0;
+
+ max_width = dw->pdata->data_width[dwc->dws.p_master];
+
+ /* Fall-back to 1-byte transfer width if undefined */
+ if (reg_width == DMA_SLAVE_BUSWIDTH_UNDEFINED)
+ reg_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
+ else if (!is_power_of_2(reg_width) || reg_width > max_width)
+ return -EINVAL;
+ else /* bus width is valid */
+ return 0;
+
+ /* Update undefined addr width value */
+ if (dwc->dma_sconfig.direction == DMA_MEM_TO_DEV)
+ dwc->dma_sconfig.dst_addr_width = reg_width;
+ else /* DMA_DEV_TO_MEM */
+ dwc->dma_sconfig.src_addr_width = reg_width;
+
+ return 0;
+}
+
+static int dwc_verify_m_buswidth(struct dma_chan *chan)
+{
+ struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
+ struct dw_dma *dw = to_dw_dma(chan->device);
+ u32 reg_width, reg_burst, mem_width;
+
+ mem_width = dw->pdata->data_width[dwc->dws.m_master];
+
+ /*
+ * It's possible to have a data portion locked in the DMA FIFO in case
+ * of the channel suspension. Subsequent channel disabling will cause
+ * that data silent loss. In order to prevent that maintain the src and
+ * dst transfer widths coherency by means of the relation:
+ * (CTLx.SRC_TR_WIDTH * CTLx.SRC_MSIZE >= CTLx.DST_TR_WIDTH)
+ * Look for the details in the commit message that brings this change.
+ *
+ * Note the DMA configs utilized in the calculations below must have
+ * been verified to have correct values by this method call.
+ */
+ if (dwc->dma_sconfig.direction == DMA_MEM_TO_DEV) {
+ reg_width = dwc->dma_sconfig.dst_addr_width;
+ if (mem_width < reg_width)
+ return -EINVAL;
+
+ dwc->dma_sconfig.src_addr_width = mem_width;
+ } else if (dwc->dma_sconfig.direction == DMA_DEV_TO_MEM) {
+ reg_width = dwc->dma_sconfig.src_addr_width;
+ reg_burst = rounddown_pow_of_two(dwc->dma_sconfig.src_maxburst);
+
+ dwc->dma_sconfig.dst_addr_width = min(mem_width, reg_width * reg_burst);
+ }
+
+ return 0;
+}
+
static int dwc_config(struct dma_chan *chan, struct dma_slave_config *sconfig)
{
struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
struct dw_dma *dw = to_dw_dma(chan->device);
+ int ret;

memcpy(&dwc->dma_sconfig, sconfig, sizeof(*sconfig));

dwc->dma_sconfig.src_maxburst =
- clamp(dwc->dma_sconfig.src_maxburst, 0U, dwc->max_burst);
+ clamp(dwc->dma_sconfig.src_maxburst, 1U, dwc->max_burst);
dwc->dma_sconfig.dst_maxburst =
- clamp(dwc->dma_sconfig.dst_maxburst, 0U, dwc->max_burst);
+ clamp(dwc->dma_sconfig.dst_maxburst, 1U, dwc->max_burst);
+
+ ret = dwc_verify_p_buswidth(chan);
+ if (ret)
+ return ret;
+
+ ret = dwc_verify_m_buswidth(chan);
+ if (ret)
+ return ret;

dw->encode_maxburst(dwc, &dwc->dma_sconfig.src_maxburst);
dw->encode_maxburst(dwc, &dwc->dma_sconfig.dst_maxburst);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index e7a010b7ca1f..347e97b4b51b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -413,16 +413,24 @@ int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,

switch (args->in.op) {
case AMDGPU_CTX_OP_ALLOC_CTX:
+ if (args->in.flags)
+ return -EINVAL;
r = amdgpu_ctx_alloc(adev, fpriv, filp, priority, &id);
args->out.alloc.ctx_id = id;
break;
case AMDGPU_CTX_OP_FREE_CTX:
+ if (args->in.flags)
+ return -EINVAL;
r = amdgpu_ctx_free(fpriv, id);
break;
case AMDGPU_CTX_OP_QUERY_STATE:
+ if (args->in.flags)
+ return -EINVAL;
r = amdgpu_ctx_query(adev, fpriv, id, &args->out);
break;
case AMDGPU_CTX_OP_QUERY_STATE2:
+ if (args->in.flags)
+ return -EINVAL;
r = amdgpu_ctx_query2(adev, fpriv, id, &args->out);
break;
default:
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index 8e8dee9fac9f..9f7450a8d004 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -733,7 +733,8 @@ int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx)
uint32_t created = 0;
uint32_t allocated = 0;
uint32_t tmp, handle = 0;
- uint32_t *size = &tmp;
+ uint32_t dummy = 0xffffffff;
+ uint32_t *size = &dummy;
unsigned idx;
int i, r = 0;

diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c
index 85967a5570cb..df52190b7e8b 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c
@@ -557,11 +557,11 @@ void jpeg_v2_0_dec_ring_emit_ib(struct amdgpu_ring *ring,

amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_IB_VMID_INTERNAL_OFFSET,
0, 0, PACKETJ_TYPE0));
- amdgpu_ring_write(ring, (vmid | (vmid << 4)));
+ amdgpu_ring_write(ring, (vmid | (vmid << 4) | (vmid << 8)));

amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JPEG_VMID_INTERNAL_OFFSET,
0, 0, PACKETJ_TYPE0));
- amdgpu_ring_write(ring, (vmid | (vmid << 4)));
+ amdgpu_ring_write(ring, (vmid | (vmid << 4) | (vmid << 8)));

amdgpu_ring_write(ring, PACKETJ(mmUVD_LMI_JRBC_IB_64BIT_BAR_LOW_INTERNAL_OFFSET,
0, 0, PACKETJ_TYPE0));
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 88f9e1aa51f8..34c466e8eee9 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1290,7 +1290,7 @@ static int kfd_ioctl_alloc_memory_of_gpu(struct file *filep,
goto err_unlock;
}
offset = amdgpu_amdkfd_get_mmio_remap_phys_addr(dev->kgd);
- if (!offset) {
+ if (!offset || (PAGE_SIZE > 4096)) {
err = -ENOMEM;
goto err_unlock;
}
@@ -2029,6 +2029,9 @@ static int kfd_mmio_mmap(struct kfd_dev *dev, struct kfd_process *process,
if (vma->vm_end - vma->vm_start != PAGE_SIZE)
return -EINVAL;

+ if (PAGE_SIZE > 4096)
+ return -EINVAL;
+
address = amdgpu_amdkfd_get_mmio_remap_phys_addr(dev->kgd);

vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE |
diff --git a/drivers/gpu/drm/lima/lima_gp.c b/drivers/gpu/drm/lima/lima_gp.c
index ca3842f71984..82071835ec9e 100644
--- a/drivers/gpu/drm/lima/lima_gp.c
+++ b/drivers/gpu/drm/lima/lima_gp.c
@@ -166,6 +166,11 @@ static void lima_gp_task_run(struct lima_sched_pipe *pipe,
gp_write(LIMA_GP_CMD, cmd);
}

+static int lima_gp_bus_stop_poll(struct lima_ip *ip)
+{
+ return !!(gp_read(LIMA_GP_STATUS) & LIMA_GP_STATUS_BUS_STOPPED);
+}
+
static int lima_gp_hard_reset_poll(struct lima_ip *ip)
{
gp_write(LIMA_GP_PERF_CNT_0_LIMIT, 0xC01A0000);
@@ -179,6 +184,13 @@ static int lima_gp_hard_reset(struct lima_ip *ip)

gp_write(LIMA_GP_PERF_CNT_0_LIMIT, 0xC0FFE000);
gp_write(LIMA_GP_INT_MASK, 0);
+
+ gp_write(LIMA_GP_CMD, LIMA_GP_CMD_STOP_BUS);
+ ret = lima_poll_timeout(ip, lima_gp_bus_stop_poll, 10, 100);
+ if (ret) {
+ dev_err(dev->dev, "%s bus stop timeout\n", lima_ip_name(ip));
+ return ret;
+ }
gp_write(LIMA_GP_CMD, LIMA_GP_CMD_RESET);
ret = lima_poll_timeout(ip, lima_gp_hard_reset_poll, 10, 100);
if (ret) {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index 170b3e9dd4b0..73aef80a8556 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -32,24 +32,14 @@
* @fmt: Pointer to format string
*/
#define DPU_DEBUG(fmt, ...) \
- do { \
- if (drm_debug_enabled(DRM_UT_KMS)) \
- DRM_DEBUG(fmt, ##__VA_ARGS__); \
- else \
- pr_debug(fmt, ##__VA_ARGS__); \
- } while (0)
+ DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)

/**
* DPU_DEBUG_DRIVER - macro for hardware driver logging
* @fmt: Pointer to format string
*/
#define DPU_DEBUG_DRIVER(fmt, ...) \
- do { \
- if (drm_debug_enabled(DRM_UT_DRIVER)) \
- DRM_ERROR(fmt, ##__VA_ARGS__); \
- else \
- pr_debug(fmt, ##__VA_ARGS__); \
- } while (0)
+ DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)

#define DPU_ERROR(fmt, ...) pr_err("[dpu error]" fmt, ##__VA_ARGS__)
#define DPU_ERROR_RATELIMITED(fmt, ...) pr_err_ratelimited("[dpu error]" fmt, ##__VA_ARGS__)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 9c30ab106b0a..3ee9a92ffed5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -906,6 +906,9 @@ static int dpu_plane_prepare_fb(struct drm_plane *plane,
new_state->fb, &layout);
if (ret) {
DPU_ERROR_PLANE(pdpu, "failed to get format layout, %d\n", ret);
+ if (pstate->aspace)
+ msm_framebuffer_cleanup(new_state->fb, pstate->aspace,
+ pstate->needs_dirtyfb);
return ret;
}

diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index 854173df6701..85f86afc5505 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -1237,6 +1237,8 @@ static int dp_ctrl_link_train(struct dp_ctrl_private *ctrl,
link_info.rate = ctrl->link->link_params.rate;
link_info.capabilities = DP_LINK_CAP_ENHANCED_FRAMING;

+ dp_link_reset_phy_params_vx_px(ctrl->link);
+
dp_aux_link_configure(ctrl->aux, &link_info);
drm_dp_dpcd_write(ctrl->aux, DP_MAIN_LINK_CHANNEL_CODING_SET,
&encoding, 1);
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 0504bdd46501..5988d9c67a30 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -894,7 +894,15 @@
#define USB_DEVICE_ID_MS_TYPE_COVER_2 0x07a9
#define USB_DEVICE_ID_MS_POWER_COVER 0x07da
#define USB_DEVICE_ID_MS_SURFACE3_COVER 0x07de
-#define USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER 0x02fd
+/*
+ * For a description of the Xbox controller models, refer to:
+ * https://en.wikipedia.org/wiki/Xbox_Wireless_Controller#Summary
+ */
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708 0x02fd
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708_BLE 0x0b20
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1914 0x0b13
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797 0x0b05
+#define USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797_BLE 0x0b22
#define USB_DEVICE_ID_MS_PIXART_MOUSE 0x00cb
#define USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS 0x02e0
#define USB_DEVICE_ID_MS_MOUSE_0783 0x0783
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
index 071fd093a5f4..9345e2bfd56e 100644
--- a/drivers/hid/hid-microsoft.c
+++ b/drivers/hid/hid-microsoft.c
@@ -446,7 +446,16 @@ static const struct hid_device_id ms_devices[] = {
.driver_data = MS_PRESENTER },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, 0x091B),
.driver_data = MS_SURFACE_DIAL },
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER),
+
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708),
+ .driver_data = MS_QUIRK_FF },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708_BLE),
+ .driver_data = MS_QUIRK_FF },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1914),
+ .driver_data = MS_QUIRK_FF },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797),
+ .driver_data = MS_QUIRK_FF },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797_BLE),
.driver_data = MS_QUIRK_FF },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS),
.driver_data = MS_QUIRK_FF },
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 11d15c83f502..438c9f6d21d9 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1924,12 +1924,14 @@ static void wacom_map_usage(struct input_dev *input, struct hid_usage *usage,
int fmax = field->logical_maximum;
unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
int resolution_code = code;
- int resolution = hidinput_calc_abs_res(field, resolution_code);
+ int resolution;

if (equivalent_usage == HID_DG_TWIST) {
resolution_code = ABS_RZ;
}

+ resolution = hidinput_calc_abs_res(field, resolution_code);
+
if (equivalent_usage == HID_GD_X) {
fmin += features->offset_left;
fmax -= features->offset_right;
diff --git a/drivers/hwmon/ltc2992.c b/drivers/hwmon/ltc2992.c
index 009a0a5af923..838b679a12d4 100644
--- a/drivers/hwmon/ltc2992.c
+++ b/drivers/hwmon/ltc2992.c
@@ -912,8 +912,14 @@ static int ltc2992_parse_dt(struct ltc2992_state *st)
}

ret = fwnode_property_read_u32(child, "shunt-resistor-micro-ohms", &val);
- if (!ret)
+ if (!ret) {
+ if (!val) {
+ fwnode_handle_put(child);
+ return dev_err_probe(&st->client->dev, -EINVAL,
+ "shunt resistor value cannot be zero\n");
+ }
st->r_sense_uohm[addr] = val;
+ }
}

return 0;
diff --git a/drivers/i2c/busses/i2c-riic.c b/drivers/i2c/busses/i2c-riic.c
index 78b84445ee6a..1d3dbc1bfc25 100644
--- a/drivers/i2c/busses/i2c-riic.c
+++ b/drivers/i2c/busses/i2c-riic.c
@@ -319,7 +319,7 @@ static int riic_init_hw(struct riic_dev *riic, struct i2c_timings *t)
* frequency with only 62 clock ticks max (31 high, 31 low).
* Aim for a duty of 60% LOW, 40% HIGH.
*/
- total_ticks = DIV_ROUND_UP(rate, t->bus_freq_hz);
+ total_ticks = DIV_ROUND_UP(rate, t->bus_freq_hz ?: 1);

for (cks = 0; cks < 7; cks++) {
/*
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index dd2dc0039960..5e3f0ee1cfd0 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -345,6 +345,8 @@ static void hci_dma_unmap_xfer(struct i3c_hci *hci,

for (i = 0; i < n; i++) {
xfer = xfer_list + i;
+ if (!xfer->data)
+ continue;
dma_unmap_single(&hci->master.dev,
xfer->data_dma, xfer->data_len,
xfer->rnw ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
@@ -450,10 +452,9 @@ static bool hci_dma_dequeue_xfer(struct i3c_hci *hci,
/*
* We're deep in it if ever this condition is ever met.
* Hardware might still be writing to memory, etc.
- * Better suspend the world than risking silent corruption.
*/
dev_crit(&hci->master.dev, "unable to abort the ring\n");
- BUG();
+ WARN_ON(1);
}

for (i = 0; i < n; i++) {
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index b69dd618146e..c6d9a828050d 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -13182,15 +13182,16 @@ static void read_mod_write(struct hfi1_devdata *dd, u16 src, u64 bits,
{
u64 reg;
u16 idx = src / BITS_PER_REGISTER;
+ unsigned long flags;

- spin_lock(&dd->irq_src_lock);
+ spin_lock_irqsave(&dd->irq_src_lock, flags);
reg = read_csr(dd, CCE_INT_MASK + (8 * idx));
if (set)
reg |= bits;
else
reg &= ~bits;
write_csr(dd, CCE_INT_MASK + (8 * idx), reg);
- spin_unlock(&dd->irq_src_lock);
+ spin_unlock_irqrestore(&dd->irq_src_lock, flags);
}

/**
diff --git a/drivers/infiniband/ulp/rtrs/rtrs.c b/drivers/infiniband/ulp/rtrs/rtrs.c
index 4745f33d7104..7f0f3ce8f115 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs.c
@@ -255,7 +255,7 @@ static int create_cq(struct rtrs_con *con, int cq_vector, int nr_cqe,
static int create_qp(struct rtrs_con *con, struct ib_pd *pd,
u32 max_send_wr, u32 max_recv_wr, u32 max_sge)
{
- struct ib_qp_init_attr init_attr = {NULL};
+ struct ib_qp_init_attr init_attr = {};
struct rdma_cm_id *cm_id = con->cm_id;
int ret;

diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index 44fe6f2f063c..d0f8c31d7cc0 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -45,6 +45,9 @@ int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
return 0;
if (mt)
return mt->num_slots != num_slots ? -EINVAL : 0;
+ /* Arbitrary limit for avoiding too large memory allocation. */
+ if (num_slots > 1024)
+ return -EINVAL;

mt = kzalloc(struct_size(mt, slots, num_slots), GFP_KERNEL);
if (!mt)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index fa89e590c133..3fa6c7184326 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -4491,8 +4491,6 @@ static int its_vpe_irq_domain_alloc(struct irq_domain *domain, unsigned int virq
struct page *vprop_page;
int base, nr_ids, i, err = 0;

- BUG_ON(!vm);
-
bitmap = its_lpi_alloc(roundup_pow_of_two(nr_irqs), &base, &nr_ids);
if (!bitmap)
return -ENOMEM;
diff --git a/drivers/md/dm-clone-metadata.c b/drivers/md/dm-clone-metadata.c
index c43d55672bce..47c1fa7aad8b 100644
--- a/drivers/md/dm-clone-metadata.c
+++ b/drivers/md/dm-clone-metadata.c
@@ -465,11 +465,6 @@ static void __destroy_persistent_data_structures(struct dm_clone_metadata *cmd)

/*---------------------------------------------------------------------------*/

-static size_t bitmap_size(unsigned long nr_bits)
-{
- return BITS_TO_LONGS(nr_bits) * sizeof(long);
-}
-
static int __dirty_map_init(struct dirty_map *dmap, unsigned long nr_words,
unsigned long nr_regions)
{
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index c1bcc857c1b6..fb0987e71611 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1151,8 +1151,26 @@ static int do_resume(struct dm_ioctl *param)
suspend_flags &= ~DM_SUSPEND_LOCKFS_FLAG;
if (param->flags & DM_NOFLUSH_FLAG)
suspend_flags |= DM_SUSPEND_NOFLUSH_FLAG;
- if (!dm_suspended_md(md))
- dm_suspend(md, suspend_flags);
+ if (!dm_suspended_md(md)) {
+ r = dm_suspend(md, suspend_flags);
+ if (r) {
+ down_write(&_hash_lock);
+ hc = dm_get_mdptr(md);
+ if (hc && !hc->new_map) {
+ hc->new_map = new_map;
+ new_map = NULL;
+ } else {
+ r = -ENXIO;
+ }
+ up_write(&_hash_lock);
+ if (new_map) {
+ dm_sync_table(md);
+ dm_table_destroy(new_map);
+ }
+ dm_put(md);
+ return r;
+ }
+ }

old_size = dm_get_size(md);
old_map = dm_swap_table(md, new_map);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index fd9bb8b53219..8199166ca862 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2255,7 +2255,7 @@ static int dm_wait_for_bios_completion(struct mapped_device *md, unsigned int ta
break;

if (signal_pending_state(task_state, current)) {
- r = -EINTR;
+ r = -ERESTARTSYS;
break;
}

@@ -2280,7 +2280,7 @@ static int dm_wait_for_completion(struct mapped_device *md, unsigned int task_st
break;

if (signal_pending_state(task_state, current)) {
- r = -EINTR;
+ r = -ERESTARTSYS;
break;
}

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 5b6c366587d5..332458ad9663 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7589,11 +7589,6 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,

mddev = bdev->bd_disk->private_data;

- if (!mddev) {
- BUG();
- goto out;
- }
-
/* Some actions do not requires the mutex */
switch (cmd) {
case GET_ARRAY_INFO:
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 392ae26134a4..c8451ffd23a3 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -274,7 +274,7 @@ static void sm_metadata_destroy(struct dm_space_map *sm)
{
struct sm_metadata *smm = container_of(sm, struct sm_metadata, sm);

- kfree(smm);
+ kvfree(smm);
}

static int sm_metadata_get_nr_blocks(struct dm_space_map *sm, dm_block_t *count)
@@ -768,7 +768,7 @@ struct dm_space_map *dm_sm_metadata_init(void)
{
struct sm_metadata *smm;

- smm = kmalloc(sizeof(*smm), GFP_KERNEL);
+ smm = kvmalloc(sizeof(*smm), GFP_KERNEL);
if (!smm)
return ERR_PTR(-ENOMEM);

diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index fea62bce9746..d76ac3ec93c2 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -2160,7 +2160,8 @@ static int dvb_frontend_handle_compat_ioctl(struct file *file, unsigned int cmd,
if (!tvps->num || (tvps->num > DTV_IOCTL_MAX_MSGS))
return -EINVAL;

- tvp = memdup_user(compat_ptr(tvps->props), tvps->num * sizeof(*tvp));
+ tvp = memdup_array_user(compat_ptr(tvps->props),
+ tvps->num, sizeof(*tvp));
if (IS_ERR(tvp))
return PTR_ERR(tvp);

@@ -2191,7 +2192,8 @@ static int dvb_frontend_handle_compat_ioctl(struct file *file, unsigned int cmd,
if (!tvps->num || (tvps->num > DTV_IOCTL_MAX_MSGS))
return -EINVAL;

- tvp = memdup_user(compat_ptr(tvps->props), tvps->num * sizeof(*tvp));
+ tvp = memdup_array_user(compat_ptr(tvps->props),
+ tvps->num, sizeof(*tvp));
if (IS_ERR(tvp))
return PTR_ERR(tvp);

@@ -2368,7 +2370,8 @@ static int dvb_get_property(struct dvb_frontend *fe, struct file *file,
if (!tvps->num || tvps->num > DTV_IOCTL_MAX_MSGS)
return -EINVAL;

- tvp = memdup_user((void __user *)tvps->props, tvps->num * sizeof(*tvp));
+ tvp = memdup_array_user((void __user *)tvps->props,
+ tvps->num, sizeof(*tvp));
if (IS_ERR(tvp))
return PTR_ERR(tvp);

@@ -2446,7 +2449,8 @@ static int dvb_frontend_handle_ioctl(struct file *file,
if (!tvps->num || (tvps->num > DTV_IOCTL_MAX_MSGS))
return -EINVAL;

- tvp = memdup_user((void __user *)tvps->props, tvps->num * sizeof(*tvp));
+ tvp = memdup_array_user((void __user *)tvps->props,
+ tvps->num, sizeof(*tvp));
if (IS_ERR(tvp))
return PTR_ERR(tvp);

diff --git a/drivers/media/pci/cx23885/cx23885-video.c b/drivers/media/pci/cx23885/cx23885-video.c
index 6851e01da1c5..7a696aea52f1 100644
--- a/drivers/media/pci/cx23885/cx23885-video.c
+++ b/drivers/media/pci/cx23885/cx23885-video.c
@@ -1354,6 +1354,10 @@ int cx23885_video_register(struct cx23885_dev *dev)
/* register Video device */
dev->video_dev = cx23885_vdev_init(dev, dev->pci,
&cx23885_video_template, "video");
+ if (!dev->video_dev) {
+ err = -ENOMEM;
+ goto fail_unreg;
+ }
dev->video_dev->queue = &dev->vb2_vidq;
dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
V4L2_CAP_AUDIO | V4L2_CAP_VIDEO_CAPTURE;
@@ -1382,6 +1386,10 @@ int cx23885_video_register(struct cx23885_dev *dev)
/* register VBI device */
dev->vbi_dev = cx23885_vdev_init(dev, dev->pci,
&cx23885_vbi_template, "vbi");
+ if (!dev->vbi_dev) {
+ err = -ENOMEM;
+ goto fail_unreg;
+ }
dev->vbi_dev->queue = &dev->vb2_vbiq;
dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
V4L2_CAP_AUDIO | V4L2_CAP_VBI_CAPTURE;
diff --git a/drivers/media/pci/solo6x10/solo6x10-offsets.h b/drivers/media/pci/solo6x10/solo6x10-offsets.h
index f414ee1316f2..fdbb817e6360 100644
--- a/drivers/media/pci/solo6x10/solo6x10-offsets.h
+++ b/drivers/media/pci/solo6x10/solo6x10-offsets.h
@@ -57,16 +57,16 @@
#define SOLO_MP4E_EXT_ADDR(__solo) \
(SOLO_EREF_EXT_ADDR(__solo) + SOLO_EREF_EXT_AREA(__solo))
#define SOLO_MP4E_EXT_SIZE(__solo) \
- max((__solo->nr_chans * 0x00080000), \
- min(((__solo->sdram_size - SOLO_MP4E_EXT_ADDR(__solo)) - \
- __SOLO_JPEG_MIN_SIZE(__solo)), 0x00ff0000))
+ clamp(__solo->sdram_size - SOLO_MP4E_EXT_ADDR(__solo) - \
+ __SOLO_JPEG_MIN_SIZE(__solo), \
+ __solo->nr_chans * 0x00080000, 0x00ff0000)

#define __SOLO_JPEG_MIN_SIZE(__solo) (__solo->nr_chans * 0x00080000)
#define SOLO_JPEG_EXT_ADDR(__solo) \
(SOLO_MP4E_EXT_ADDR(__solo) + SOLO_MP4E_EXT_SIZE(__solo))
#define SOLO_JPEG_EXT_SIZE(__solo) \
- max(__SOLO_JPEG_MIN_SIZE(__solo), \
- min((__solo->sdram_size - SOLO_JPEG_EXT_ADDR(__solo)), 0x00ff0000))
+ clamp(__solo->sdram_size - SOLO_JPEG_EXT_ADDR(__solo), \
+ __SOLO_JPEG_MIN_SIZE(__solo), 0x00ff0000)

#define SOLO_SDRAM_END(__solo) \
(SOLO_JPEG_EXT_ADDR(__solo) + SOLO_JPEG_EXT_SIZE(__solo))
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 055513a7301f..656c17986c1c 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -870,7 +870,7 @@ static int vcodec_domains_get(struct venus_core *core)
pd = dev_pm_domain_attach_by_name(dev,
res->vcodec_pmdomains[i]);
if (IS_ERR_OR_NULL(pd))
- return PTR_ERR(pd) ? : -ENODATA;
+ return pd ? PTR_ERR(pd) : -ENODATA;
core->pmdomains[i] = pd;
}

diff --git a/drivers/media/radio/radio-isa.c b/drivers/media/radio/radio-isa.c
index c591c0851fa2..ad49151f5ff0 100644
--- a/drivers/media/radio/radio-isa.c
+++ b/drivers/media/radio/radio-isa.c
@@ -36,7 +36,7 @@ static int radio_isa_querycap(struct file *file, void *priv,

strscpy(v->driver, isa->drv->driver.driver.name, sizeof(v->driver));
strscpy(v->card, isa->drv->card, sizeof(v->card));
- snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name);
+ snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", dev_name(isa->v4l2_dev.dev));
return 0;
}

diff --git a/drivers/memory/stm32-fmc2-ebi.c b/drivers/memory/stm32-fmc2-ebi.c
index ffec26a99313..5c387d32c078 100644
--- a/drivers/memory/stm32-fmc2-ebi.c
+++ b/drivers/memory/stm32-fmc2-ebi.c
@@ -179,8 +179,11 @@ static int stm32_fmc2_ebi_check_mux(struct stm32_fmc2_ebi *ebi,
int cs)
{
u32 bcr;
+ int ret;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;

if (bcr & FMC2_BCR_MTYP)
return 0;
@@ -193,8 +196,11 @@ static int stm32_fmc2_ebi_check_waitcfg(struct stm32_fmc2_ebi *ebi,
int cs)
{
u32 bcr, val = FIELD_PREP(FMC2_BCR_MTYP, FMC2_BCR_MTYP_NOR);
+ int ret;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;

if ((bcr & FMC2_BCR_MTYP) == val && bcr & FMC2_BCR_BURSTEN)
return 0;
@@ -207,8 +213,11 @@ static int stm32_fmc2_ebi_check_sync_trans(struct stm32_fmc2_ebi *ebi,
int cs)
{
u32 bcr;
+ int ret;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;

if (bcr & FMC2_BCR_BURSTEN)
return 0;
@@ -221,8 +230,11 @@ static int stm32_fmc2_ebi_check_async_trans(struct stm32_fmc2_ebi *ebi,
int cs)
{
u32 bcr;
+ int ret;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;

if (!(bcr & FMC2_BCR_BURSTEN) || !(bcr & FMC2_BCR_CBURSTRW))
return 0;
@@ -235,8 +247,11 @@ static int stm32_fmc2_ebi_check_cpsize(struct stm32_fmc2_ebi *ebi,
int cs)
{
u32 bcr, val = FIELD_PREP(FMC2_BCR_MTYP, FMC2_BCR_MTYP_PSRAM);
+ int ret;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;

if ((bcr & FMC2_BCR_MTYP) == val && bcr & FMC2_BCR_BURSTEN)
return 0;
@@ -249,12 +264,18 @@ static int stm32_fmc2_ebi_check_address_hold(struct stm32_fmc2_ebi *ebi,
int cs)
{
u32 bcr, bxtr, val = FIELD_PREP(FMC2_BXTR_ACCMOD, FMC2_BXTR_EXTMOD_D);
+ int ret;
+
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
if (prop->reg_type == FMC2_REG_BWTR)
- regmap_read(ebi->regmap, FMC2_BWTR(cs), &bxtr);
+ ret = regmap_read(ebi->regmap, FMC2_BWTR(cs), &bxtr);
else
- regmap_read(ebi->regmap, FMC2_BTR(cs), &bxtr);
+ ret = regmap_read(ebi->regmap, FMC2_BTR(cs), &bxtr);
+ if (ret)
+ return ret;

if ((!(bcr & FMC2_BCR_BURSTEN) || !(bcr & FMC2_BCR_CBURSTRW)) &&
((bxtr & FMC2_BXTR_ACCMOD) == val || bcr & FMC2_BCR_MUXEN))
@@ -268,12 +289,19 @@ static int stm32_fmc2_ebi_check_clk_period(struct stm32_fmc2_ebi *ebi,
int cs)
{
u32 bcr, bcr1;
+ int ret;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
- if (cs)
- regmap_read(ebi->regmap, FMC2_BCR1, &bcr1);
- else
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;
+
+ if (cs) {
+ ret = regmap_read(ebi->regmap, FMC2_BCR1, &bcr1);
+ if (ret)
+ return ret;
+ } else {
bcr1 = bcr;
+ }

if (bcr & FMC2_BCR_BURSTEN && (!cs || !(bcr1 & FMC2_BCR1_CCLKEN)))
return 0;
@@ -305,12 +333,18 @@ static u32 stm32_fmc2_ebi_ns_to_clk_period(struct stm32_fmc2_ebi *ebi,
{
u32 nb_clk_cycles = stm32_fmc2_ebi_ns_to_clock_cycles(ebi, cs, setup);
u32 bcr, btr, clk_period;
+ int ret;
+
+ ret = regmap_read(ebi->regmap, FMC2_BCR1, &bcr);
+ if (ret)
+ return ret;

- regmap_read(ebi->regmap, FMC2_BCR1, &bcr);
if (bcr & FMC2_BCR1_CCLKEN || !cs)
- regmap_read(ebi->regmap, FMC2_BTR1, &btr);
+ ret = regmap_read(ebi->regmap, FMC2_BTR1, &btr);
else
- regmap_read(ebi->regmap, FMC2_BTR(cs), &btr);
+ ret = regmap_read(ebi->regmap, FMC2_BTR(cs), &btr);
+ if (ret)
+ return ret;

clk_period = FIELD_GET(FMC2_BTR_CLKDIV, btr) + 1;

@@ -569,11 +603,16 @@ static int stm32_fmc2_ebi_set_address_setup(struct stm32_fmc2_ebi *ebi,
if (ret)
return ret;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;
+
if (prop->reg_type == FMC2_REG_BWTR)
- regmap_read(ebi->regmap, FMC2_BWTR(cs), &bxtr);
+ ret = regmap_read(ebi->regmap, FMC2_BWTR(cs), &bxtr);
else
- regmap_read(ebi->regmap, FMC2_BTR(cs), &bxtr);
+ ret = regmap_read(ebi->regmap, FMC2_BTR(cs), &bxtr);
+ if (ret)
+ return ret;

if ((bxtr & FMC2_BXTR_ACCMOD) == val || bcr & FMC2_BCR_MUXEN)
val = clamp_val(setup, 1, FMC2_BXTR_ADDSET_MAX);
@@ -691,11 +730,14 @@ static int stm32_fmc2_ebi_set_max_low_pulse(struct stm32_fmc2_ebi *ebi,
int cs, u32 setup)
{
u32 old_val, new_val, pcscntr;
+ int ret;

if (setup < 1)
return 0;

- regmap_read(ebi->regmap, FMC2_PCSCNTR, &pcscntr);
+ ret = regmap_read(ebi->regmap, FMC2_PCSCNTR, &pcscntr);
+ if (ret)
+ return ret;

/* Enable counter for the bank */
regmap_update_bits(ebi->regmap, FMC2_PCSCNTR,
@@ -942,17 +984,20 @@ static void stm32_fmc2_ebi_disable_bank(struct stm32_fmc2_ebi *ebi, int cs)
regmap_update_bits(ebi->regmap, FMC2_BCR(cs), FMC2_BCR_MBKEN, 0);
}

-static void stm32_fmc2_ebi_save_setup(struct stm32_fmc2_ebi *ebi)
+static int stm32_fmc2_ebi_save_setup(struct stm32_fmc2_ebi *ebi)
{
unsigned int cs;
+ int ret;

for (cs = 0; cs < FMC2_MAX_EBI_CE; cs++) {
- regmap_read(ebi->regmap, FMC2_BCR(cs), &ebi->bcr[cs]);
- regmap_read(ebi->regmap, FMC2_BTR(cs), &ebi->btr[cs]);
- regmap_read(ebi->regmap, FMC2_BWTR(cs), &ebi->bwtr[cs]);
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &ebi->bcr[cs]);
+ ret |= regmap_read(ebi->regmap, FMC2_BTR(cs), &ebi->btr[cs]);
+ ret |= regmap_read(ebi->regmap, FMC2_BWTR(cs), &ebi->bwtr[cs]);
+ if (ret)
+ return ret;
}

- regmap_read(ebi->regmap, FMC2_PCSCNTR, &ebi->pcscntr);
+ return regmap_read(ebi->regmap, FMC2_PCSCNTR, &ebi->pcscntr);
}

static void stm32_fmc2_ebi_set_setup(struct stm32_fmc2_ebi *ebi)
@@ -981,22 +1026,29 @@ static void stm32_fmc2_ebi_disable_banks(struct stm32_fmc2_ebi *ebi)
}

/* NWAIT signal can not be connected to EBI controller and NAND controller */
-static bool stm32_fmc2_ebi_nwait_used_by_ctrls(struct stm32_fmc2_ebi *ebi)
+static int stm32_fmc2_ebi_nwait_used_by_ctrls(struct stm32_fmc2_ebi *ebi)
{
+ struct device *dev = ebi->dev;
unsigned int cs;
u32 bcr;
+ int ret;

for (cs = 0; cs < FMC2_MAX_EBI_CE; cs++) {
if (!(ebi->bank_assigned & BIT(cs)))
continue;

- regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ ret = regmap_read(ebi->regmap, FMC2_BCR(cs), &bcr);
+ if (ret)
+ return ret;
+
if ((bcr & FMC2_BCR_WAITEN || bcr & FMC2_BCR_ASYNCWAIT) &&
- ebi->bank_assigned & BIT(FMC2_NAND))
- return true;
+ ebi->bank_assigned & BIT(FMC2_NAND)) {
+ dev_err(dev, "NWAIT signal connected to EBI and NAND controllers\n");
+ return -EINVAL;
+ }
}

- return false;
+ return 0;
}

static void stm32_fmc2_ebi_enable(struct stm32_fmc2_ebi *ebi)
@@ -1083,10 +1135,9 @@ static int stm32_fmc2_ebi_parse_dt(struct stm32_fmc2_ebi *ebi)
return -ENODEV;
}

- if (stm32_fmc2_ebi_nwait_used_by_ctrls(ebi)) {
- dev_err(dev, "NWAIT signal connected to EBI and NAND controllers\n");
- return -EINVAL;
- }
+ ret = stm32_fmc2_ebi_nwait_used_by_ctrls(ebi);
+ if (ret)
+ return ret;

stm32_fmc2_ebi_enable(ebi);

@@ -1131,7 +1182,10 @@ static int stm32_fmc2_ebi_probe(struct platform_device *pdev)
if (ret)
goto err_release;

- stm32_fmc2_ebi_save_setup(ebi);
+ ret = stm32_fmc2_ebi_save_setup(ebi);
+ if (ret)
+ goto err_release;
+
platform_set_drvdata(pdev, ebi);

return 0;
diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c
index 4bed0e54fd45..2ff586c6b102 100644
--- a/drivers/memory/tegra/tegra186.c
+++ b/drivers/memory/tegra/tegra186.c
@@ -43,6 +43,9 @@ static void tegra186_mc_client_sid_override(struct tegra_mc *mc,
{
u32 value, old;

+ if (client->regs.sid.security == 0 && client->regs.sid.override == 0)
+ return;
+
value = readl(mc->regs + client->regs.sid.security);
if ((value & MC_SID_STREAMID_SECURITY_OVERRIDE) == 0) {
/*
diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c
index 4052f828f75e..e03d4405cda3 100644
--- a/drivers/mmc/core/mmc_test.c
+++ b/drivers/mmc/core/mmc_test.c
@@ -3111,13 +3111,13 @@ static ssize_t mtf_test_write(struct file *file, const char __user *buf,
test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
#ifdef CONFIG_HIGHMEM
test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
+ if (!test->highmem) {
+ count = -ENOMEM;
+ goto free_test_buffer;
+ }
#endif

-#ifdef CONFIG_HIGHMEM
- if (test->buffer && test->highmem) {
-#else
if (test->buffer) {
-#endif
mutex_lock(&mmc_test_lock);
mmc_test_run(test, testcase);
mutex_unlock(&mmc_test_lock);
@@ -3125,6 +3125,7 @@ static ssize_t mtf_test_write(struct file *file, const char __user *buf,

#ifdef CONFIG_HIGHMEM
__free_pages(test->highmem, BUFFER_ORDER);
+free_test_buffer:
#endif
kfree(test->buffer);
kfree(test);
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 1e8f1bb3cad7..32927e66b60c 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -3246,6 +3246,10 @@ int dw_mci_probe(struct dw_mci *host)
host->biu_clk = devm_clk_get(host->dev, "biu");
if (IS_ERR(host->biu_clk)) {
dev_dbg(host->dev, "biu clock not available\n");
+ ret = PTR_ERR(host->biu_clk);
+ if (ret == -EPROBE_DEFER)
+ return ret;
+
} else {
ret = clk_prepare_enable(host->biu_clk);
if (ret) {
@@ -3257,6 +3261,10 @@ int dw_mci_probe(struct dw_mci *host)
host->ciu_clk = devm_clk_get(host->dev, "ciu");
if (IS_ERR(host->ciu_clk)) {
dev_dbg(host->dev, "ciu clock not available\n");
+ ret = PTR_ERR(host->ciu_clk);
+ if (ret == -EPROBE_DEFER)
+ goto err_clk_biu;
+
host->bus_hz = host->pdata->bus_hz;
} else {
ret = clk_prepare_enable(host->ciu_clk);
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 6a91229b0e05..fd0667e1d10a 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -575,7 +575,6 @@ static void bond_ipsec_del_sa_all(struct bonding *bond)
} else {
slave->dev->xfrmdev_ops->xdo_dev_state_delete(ipsec->xs);
}
- ipsec->xs->xso.real_dev = NULL;
}
spin_unlock_bh(&bond->ipsec_lock);
rcu_read_unlock();
@@ -592,34 +591,30 @@ static bool bond_ipsec_offload_ok(struct sk_buff *skb, struct xfrm_state *xs)
struct net_device *real_dev;
struct slave *curr_active;
struct bonding *bond;
- int err;
+ bool ok = false;

bond = netdev_priv(bond_dev);
rcu_read_lock();
curr_active = rcu_dereference(bond->curr_active_slave);
+ if (!curr_active)
+ goto out;
real_dev = curr_active->dev;

- if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
- err = false;
+ if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP)
goto out;
- }

- if (!xs->xso.real_dev) {
- err = false;
+ if (!xs->xso.real_dev)
goto out;
- }

if (!real_dev->xfrmdev_ops ||
!real_dev->xfrmdev_ops->xdo_dev_offload_ok ||
- netif_is_bond_master(real_dev)) {
- err = false;
+ netif_is_bond_master(real_dev))
goto out;
- }

- err = real_dev->xfrmdev_ops->xdo_dev_offload_ok(skb, xs);
+ ok = real_dev->xfrmdev_ops->xdo_dev_offload_ok(skb, xs);
out:
rcu_read_unlock();
- return err;
+ return ok;
}

static const struct xfrmdev_ops bond_xfrmdev_ops = {
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 1f8f7537e8eb..5da4599377e1 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -893,7 +893,7 @@ static int bond_option_active_slave_set(struct bonding *bond,
/* check to see if we are clearing active */
if (!slave_dev) {
netdev_dbg(bond->dev, "Clearing current active slave\n");
- RCU_INIT_POINTER(bond->curr_active_slave, NULL);
+ bond_change_active_slave(bond, NULL);
bond_select_active_slave(bond);
} else {
struct slave *old_active = rtnl_dereference(bond->curr_active_slave);
diff --git a/drivers/net/dsa/mv88e6xxx/Makefile b/drivers/net/dsa/mv88e6xxx/Makefile
index c8eca2b6f959..49bf358b9c4f 100644
--- a/drivers/net/dsa/mv88e6xxx/Makefile
+++ b/drivers/net/dsa/mv88e6xxx/Makefile
@@ -15,3 +15,7 @@ mv88e6xxx-objs += port_hidden.o
mv88e6xxx-$(CONFIG_NET_DSA_MV88E6XXX_PTP) += ptp.o
mv88e6xxx-objs += serdes.o
mv88e6xxx-objs += smi.o
+mv88e6xxx-objs += trace.o
+
+# for tracing framework to find trace.h
+CFLAGS_trace.o := -I$(src)
diff --git a/drivers/net/dsa/mv88e6xxx/global1_atu.c b/drivers/net/dsa/mv88e6xxx/global1_atu.c
index 40bd67a5c8e9..17fd62616ce6 100644
--- a/drivers/net/dsa/mv88e6xxx/global1_atu.c
+++ b/drivers/net/dsa/mv88e6xxx/global1_atu.c
@@ -12,6 +12,7 @@

#include "chip.h"
#include "global1.h"
+#include "trace.h"

/* Offset 0x01: ATU FID Register */

@@ -114,6 +115,19 @@ static int mv88e6xxx_g1_atu_op_wait(struct mv88e6xxx_chip *chip)
return mv88e6xxx_g1_wait_bit(chip, MV88E6XXX_G1_ATU_OP, bit, 0);
}

+static int mv88e6xxx_g1_read_atu_violation(struct mv88e6xxx_chip *chip)
+{
+ int err;
+
+ err = mv88e6xxx_g1_write(chip, MV88E6XXX_G1_ATU_OP,
+ MV88E6XXX_G1_ATU_OP_BUSY |
+ MV88E6XXX_G1_ATU_OP_GET_CLR_VIOLATION);
+ if (err)
+ return err;
+
+ return mv88e6xxx_g1_atu_op_wait(chip);
+}
+
static int mv88e6xxx_g1_atu_op(struct mv88e6xxx_chip *chip, u16 fid, u16 op)
{
u16 val;
@@ -159,6 +173,41 @@ int mv88e6xxx_g1_atu_get_next(struct mv88e6xxx_chip *chip, u16 fid)
return mv88e6xxx_g1_atu_op(chip, fid, MV88E6XXX_G1_ATU_OP_GET_NEXT_DB);
}

+static int mv88e6xxx_g1_atu_fid_read(struct mv88e6xxx_chip *chip, u16 *fid)
+{
+ u16 val = 0, upper = 0, op = 0;
+ int err = -EOPNOTSUPP;
+
+ if (mv88e6xxx_num_databases(chip) > 256) {
+ err = mv88e6xxx_g1_read(chip, MV88E6352_G1_ATU_FID, &val);
+ val &= 0xfff;
+ if (err)
+ return err;
+ } else {
+ err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_OP, &op);
+ if (err)
+ return err;
+ if (mv88e6xxx_num_databases(chip) > 64) {
+ /* ATU DBNum[7:4] are located in ATU Control 15:12 */
+ err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_CTL,
+ &upper);
+ if (err)
+ return err;
+
+ upper = (upper >> 8) & 0x00f0;
+ } else if (mv88e6xxx_num_databases(chip) > 16) {
+ /* ATU DBNum[5:4] are located in ATU Operation 9:8 */
+ upper = (op >> 4) & 0x30;
+ }
+
+ /* ATU DBNum[3:0] are located in ATU Operation 3:0 */
+ val = (op & 0xf) | upper;
+ }
+ *fid = val;
+
+ return err;
+}
+
/* Offset 0x0C: ATU Data Register */

static int mv88e6xxx_g1_atu_data_read(struct mv88e6xxx_chip *chip,
@@ -353,14 +402,12 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
{
struct mv88e6xxx_chip *chip = dev_id;
struct mv88e6xxx_atu_entry entry;
- int spid;
- int err;
- u16 val;
+ int err, spid;
+ u16 val, fid;

mv88e6xxx_reg_lock(chip);

- err = mv88e6xxx_g1_atu_op(chip, 0,
- MV88E6XXX_G1_ATU_OP_GET_CLR_VIOLATION);
+ err = mv88e6xxx_g1_read_atu_violation(chip);
if (err)
goto out;

@@ -368,6 +415,10 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
if (err)
goto out;

+ err = mv88e6xxx_g1_atu_fid_read(chip, &fid);
+ if (err)
+ goto out;
+
err = mv88e6xxx_g1_atu_data_read(chip, &entry);
if (err)
goto out;
@@ -385,24 +436,25 @@ static irqreturn_t mv88e6xxx_g1_atu_prob_irq_thread_fn(int irq, void *dev_id)
}

if (val & MV88E6XXX_G1_ATU_OP_MEMBER_VIOLATION) {
- dev_err_ratelimited(chip->dev,
- "ATU member violation for %pM portvec %x spid %d\n",
- entry.mac, entry.portvec, spid);
+ trace_mv88e6xxx_atu_member_violation(chip->dev, spid,
+ entry.portvec, entry.mac,
+ fid);
chip->ports[spid].atu_member_violation++;
}

if (val & MV88E6XXX_G1_ATU_OP_MISS_VIOLATION) {
- dev_err_ratelimited(chip->dev,
- "ATU miss violation for %pM portvec %x spid %d\n",
- entry.mac, entry.portvec, spid);
+ trace_mv88e6xxx_atu_miss_violation(chip->dev, spid,
+ entry.portvec, entry.mac,
+ fid);
chip->ports[spid].atu_miss_violation++;
}

if (val & MV88E6XXX_G1_ATU_OP_FULL_VIOLATION) {
- dev_err_ratelimited(chip->dev,
- "ATU full violation for %pM portvec %x spid %d\n",
- entry.mac, entry.portvec, spid);
- chip->ports[spid].atu_full_violation++;
+ trace_mv88e6xxx_atu_full_violation(chip->dev, spid,
+ entry.portvec, entry.mac,
+ fid);
+ if (spid < ARRAY_SIZE(chip->ports))
+ chip->ports[spid].atu_full_violation++;
}
mv88e6xxx_reg_unlock(chip);

diff --git a/drivers/net/dsa/mv88e6xxx/trace.c b/drivers/net/dsa/mv88e6xxx/trace.c
new file mode 100644
index 000000000000..7833cb50ca5d
--- /dev/null
+++ b/drivers/net/dsa/mv88e6xxx/trace.c
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Copyright 2022 NXP
+ */
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
diff --git a/drivers/net/dsa/mv88e6xxx/trace.h b/drivers/net/dsa/mv88e6xxx/trace.h
new file mode 100644
index 000000000000..d9ab5c8dee55
--- /dev/null
+++ b/drivers/net/dsa/mv88e6xxx/trace.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Copyright 2022 NXP
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM mv88e6xxx
+
+#if !defined(_MV88E6XXX_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _MV88E6XXX_TRACE_H
+
+#include <linux/device.h>
+#include <linux/if_ether.h>
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(mv88e6xxx_atu_violation,
+
+ TP_PROTO(const struct device *dev, int spid, u16 portvec,
+ const unsigned char *addr, u16 fid),
+
+ TP_ARGS(dev, spid, portvec, addr, fid),
+
+ TP_STRUCT__entry(
+ __string(name, dev_name(dev))
+ __field(int, spid)
+ __field(u16, portvec)
+ __array(unsigned char, addr, ETH_ALEN)
+ __field(u16, fid)
+ ),
+
+ TP_fast_assign(
+ __assign_str(name, dev_name(dev));
+ __entry->spid = spid;
+ __entry->portvec = portvec;
+ memcpy(__entry->addr, addr, ETH_ALEN);
+ __entry->fid = fid;
+ ),
+
+ TP_printk("dev %s spid %d portvec 0x%x addr %pM fid %u",
+ __get_str(name), __entry->spid, __entry->portvec,
+ __entry->addr, __entry->fid)
+);
+
+DEFINE_EVENT(mv88e6xxx_atu_violation, mv88e6xxx_atu_member_violation,
+ TP_PROTO(const struct device *dev, int spid, u16 portvec,
+ const unsigned char *addr, u16 fid),
+ TP_ARGS(dev, spid, portvec, addr, fid));
+
+DEFINE_EVENT(mv88e6xxx_atu_violation, mv88e6xxx_atu_miss_violation,
+ TP_PROTO(const struct device *dev, int spid, u16 portvec,
+ const unsigned char *addr, u16 fid),
+ TP_ARGS(dev, spid, portvec, addr, fid));
+
+DEFINE_EVENT(mv88e6xxx_atu_violation, mv88e6xxx_atu_full_violation,
+ TP_PROTO(const struct device *dev, int spid, u16 portvec,
+ const unsigned char *addr, u16 fid),
+ TP_ARGS(dev, spid, portvec, addr, fid));
+
+#endif /* _MV88E6XXX_TRACE_H */
+
+/* We don't want to use include/trace/events */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c b/drivers/net/dsa/vitesse-vsc73xx-core.c
index 6b6470ef2ae9..592527f06944 100644
--- a/drivers/net/dsa/vitesse-vsc73xx-core.c
+++ b/drivers/net/dsa/vitesse-vsc73xx-core.c
@@ -17,6 +17,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/iopoll.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_mdio.h>
@@ -38,6 +39,10 @@
#define VSC73XX_BLOCK_ARBITER 0x5 /* Only subblock 0 */
#define VSC73XX_BLOCK_SYSTEM 0x7 /* Only subblock 0 */

+/* MII Block subblock */
+#define VSC73XX_BLOCK_MII_INTERNAL 0x0 /* Internal MDIO subblock */
+#define VSC73XX_BLOCK_MII_EXTERNAL 0x1 /* External MDIO subblock */
+
#define CPU_PORT 6 /* CPU port */

/* MAC Block registers */
@@ -196,6 +201,8 @@
#define VSC73XX_MII_CMD 0x1
#define VSC73XX_MII_DATA 0x2

+#define VSC73XX_MII_STAT_BUSY BIT(3)
+
/* Arbiter block 5 registers */
#define VSC73XX_ARBEMPTY 0x0c
#define VSC73XX_ARBDISC 0x0e
@@ -269,6 +276,10 @@
#define IS_7398(a) ((a)->chipid == VSC73XX_CHIPID_ID_7398)
#define IS_739X(a) (IS_7395(a) || IS_7398(a))

+#define VSC73XX_POLL_SLEEP_US 1000
+#define VSC73XX_MDIO_POLL_SLEEP_US 5
+#define VSC73XX_POLL_TIMEOUT_US 10000
+
struct vsc73xx_counter {
u8 counter;
const char *name;
@@ -484,6 +495,22 @@ static int vsc73xx_detect(struct vsc73xx *vsc)
return 0;
}

+static int vsc73xx_mdio_busy_check(struct vsc73xx *vsc)
+{
+ int ret, err;
+ u32 val;
+
+ ret = read_poll_timeout(vsc73xx_read, err,
+ err < 0 || !(val & VSC73XX_MII_STAT_BUSY),
+ VSC73XX_MDIO_POLL_SLEEP_US,
+ VSC73XX_POLL_TIMEOUT_US, false, vsc,
+ VSC73XX_BLOCK_MII, VSC73XX_BLOCK_MII_INTERNAL,
+ VSC73XX_MII_STAT, &val);
+ if (ret)
+ return ret;
+ return err;
+}
+
static int vsc73xx_phy_read(struct dsa_switch *ds, int phy, int regnum)
{
struct vsc73xx *vsc = ds->priv;
@@ -491,12 +518,20 @@ static int vsc73xx_phy_read(struct dsa_switch *ds, int phy, int regnum)
u32 val;
int ret;

+ ret = vsc73xx_mdio_busy_check(vsc);
+ if (ret)
+ return ret;
+
/* Setting bit 26 means "read" */
cmd = BIT(26) | (phy << 21) | (regnum << 16);
ret = vsc73xx_write(vsc, VSC73XX_BLOCK_MII, 0, 1, cmd);
if (ret)
return ret;
- msleep(2);
+
+ ret = vsc73xx_mdio_busy_check(vsc);
+ if (ret)
+ return ret;
+
ret = vsc73xx_read(vsc, VSC73XX_BLOCK_MII, 0, 2, &val);
if (ret)
return ret;
@@ -520,6 +555,10 @@ static int vsc73xx_phy_write(struct dsa_switch *ds, int phy, int regnum,
u32 cmd;
int ret;

+ ret = vsc73xx_mdio_busy_check(vsc);
+ if (ret)
+ return ret;
+
/* It was found through tedious experiments that this router
* chip really hates to have it's PHYs reset. They
* never recover if that happens: autonegotiation stops
@@ -531,7 +570,7 @@ static int vsc73xx_phy_write(struct dsa_switch *ds, int phy, int regnum,
return 0;
}

- cmd = (phy << 21) | (regnum << 16);
+ cmd = (phy << 21) | (regnum << 16) | val;
ret = vsc73xx_write(vsc, VSC73XX_BLOCK_MII, 0, 1, cmd);
if (ret)
return ret;
@@ -780,7 +819,7 @@ static void vsc73xx_adjust_link(struct dsa_switch *ds, int port,
* after a PHY or the CPU port comes up or down.
*/
if (!phydev->link) {
- int maxloop = 10;
+ int ret, err;

dev_dbg(vsc->dev, "port %d: went down\n",
port);
@@ -795,19 +834,17 @@ static void vsc73xx_adjust_link(struct dsa_switch *ds, int port,
VSC73XX_ARBDISC, BIT(port), BIT(port));

/* Wait until queue is empty */
- vsc73xx_read(vsc, VSC73XX_BLOCK_ARBITER, 0,
- VSC73XX_ARBEMPTY, &val);
- while (!(val & BIT(port))) {
- msleep(1);
- vsc73xx_read(vsc, VSC73XX_BLOCK_ARBITER, 0,
- VSC73XX_ARBEMPTY, &val);
- if (--maxloop == 0) {
- dev_err(vsc->dev,
- "timeout waiting for block arbiter\n");
- /* Continue anyway */
- break;
- }
- }
+ ret = read_poll_timeout(vsc73xx_read, err,
+ err < 0 || (val & BIT(port)),
+ VSC73XX_POLL_SLEEP_US,
+ VSC73XX_POLL_TIMEOUT_US, false,
+ vsc, VSC73XX_BLOCK_ARBITER, 0,
+ VSC73XX_ARBEMPTY, &val);
+ if (ret)
+ dev_err(vsc->dev,
+ "timeout waiting for block arbiter\n");
+ else if (err < 0)
+ dev_err(vsc->dev, "error reading arbiter\n");

/* Put this port into reset */
vsc73xx_write(vsc, VSC73XX_BLOCK_MAC, port, VSC73XX_MAC_CFG,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
index 786ceae34488..dd9e68465e69 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
@@ -1244,7 +1244,8 @@ static u64 hash_filter_ntuple(struct ch_filter_specification *fs,
* in the Compressed Filter Tuple.
*/
if (tp->vlan_shift >= 0 && fs->mask.ivlan)
- ntuple |= (FT_VLAN_VLD_F | fs->val.ivlan) << tp->vlan_shift;
+ ntuple |= (u64)(FT_VLAN_VLD_F |
+ fs->val.ivlan) << tp->vlan_shift;

if (tp->port_shift >= 0 && fs->mask.iport)
ntuple |= (u64)fs->val.iport << tp->port_shift;
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
index 175f15c46842..2b6a6a997d75 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
@@ -2585,13 +2585,14 @@ static int dpaa2_switch_refill_bp(struct ethsw_core *ethsw)

static int dpaa2_switch_seed_bp(struct ethsw_core *ethsw)
{
- int *count, i;
+ int *count, ret, i;

for (i = 0; i < DPAA2_ETHSW_NUM_BUFS; i += BUFS_PER_CMD) {
+ ret = dpaa2_switch_add_bufs(ethsw, ethsw->bpid);
count = &ethsw->buf_count;
- *count += dpaa2_switch_add_bufs(ethsw, ethsw->bpid);
+ *count += ret;

- if (unlikely(*count < BUFS_PER_CMD))
+ if (unlikely(ret < BUFS_PER_CMD))
return -ENOMEM;
}

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index e48d33927c17..d6bdcd9f285b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -5504,6 +5504,9 @@ static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle)
struct net_device *netdev = handle->kinfo.netdev;
struct hns3_nic_priv *priv = netdev_priv(netdev);

+ if (!test_bit(HNS3_NIC_STATE_DOWN, &priv->state))
+ hns3_nic_net_stop(netdev);
+
if (!test_and_clear_bit(HNS3_NIC_STATE_INITED, &priv->state)) {
netdev_warn(netdev, "already uninitialized\n");
return 0;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index c3690e49c3d9..eb902e80a815 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -11636,8 +11636,8 @@ static void hclge_reset_done(struct hnae3_ae_dev *ae_dev)
dev_err(&hdev->pdev->dev, "fail to rebuild, ret=%d\n", ret);

hdev->reset_type = HNAE3_NONE_RESET;
- clear_bit(HCLGE_STATE_RST_HANDLING, &hdev->state);
- up(&hdev->reset_sem);
+ if (test_and_clear_bit(HCLGE_STATE_RST_HANDLING, &hdev->state))
+ up(&hdev->reset_sem);
}

static void hclge_clear_resetting_state(struct hclge_dev *hdev)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index 77c432ab7856..e2fe41d3972f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -1066,10 +1066,11 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
req = (struct hclge_mbx_vf_to_pf_cmd *)desc->data;

flag = le16_to_cpu(crq->desc[crq->next_to_use].flag);
- if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B))) {
+ if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B) ||
+ req->mbx_src_vfid > hdev->num_req_vfs)) {
dev_warn(&hdev->pdev->dev,
- "dropped invalid mailbox message, code = %u\n",
- req->msg.code);
+ "dropped invalid mailbox message, code = %u, vfid = %u\n",
+ req->msg.code, req->mbx_src_vfid);

/* dropping/not processing this invalid message */
crq->desc[crq->next_to_use].flag = 0;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index a41e04796b0b..5b861a2a3e73 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2217,8 +2217,8 @@ static void hclgevf_reset_done(struct hnae3_ae_dev *ae_dev)
ret);

hdev->reset_type = HNAE3_NONE_RESET;
- clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state);
- up(&hdev->reset_sem);
+ if (test_and_clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state))
+ up(&hdev->reset_sem);
}

static u32 hclgevf_get_fw_version(struct hnae3_handle *handle)
diff --git a/drivers/net/ethernet/i825xx/sun3_82586.c b/drivers/net/ethernet/i825xx/sun3_82586.c
index 18d32302c3c7..6c89aa7eaa22 100644
--- a/drivers/net/ethernet/i825xx/sun3_82586.c
+++ b/drivers/net/ethernet/i825xx/sun3_82586.c
@@ -987,7 +987,7 @@ static void sun3_82586_timeout(struct net_device *dev, unsigned int txqueue)
{
#ifdef DEBUG
printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
- printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
+ printk("%s: command-stats: %04x\n", dev->name, swab16(p->xmit_cmds[0]->cmd_status));
printk("%s: check, whether you set the right interrupt number!\n",dev->name);
#endif
sun3_82586_close(dev);
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 6ee8e0032d52..b09d89cdb001 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -765,7 +765,7 @@ ice_can_reuse_rx_page(struct ice_rx_buf *rx_buf, int rx_buf_pgcnt)
return false;
#else
#define ICE_LAST_OFFSET \
- (SKB_WITH_OVERHEAD(PAGE_SIZE) - ICE_RXBUF_2048)
+ (SKB_WITH_OVERHEAD(PAGE_SIZE) - ICE_RXBUF_3072)
if (rx_buf->page_offset > ICE_LAST_OFFSET)
return false;
#endif /* PAGE_SIZE < 8192) */
diff --git a/drivers/net/ethernet/intel/igc/igc_base.c b/drivers/net/ethernet/intel/igc/igc_base.c
index 84f142f5e472..be095c6531b6 100644
--- a/drivers/net/ethernet/intel/igc/igc_base.c
+++ b/drivers/net/ethernet/intel/igc/igc_base.c
@@ -402,6 +402,35 @@ void igc_rx_fifo_flush_base(struct igc_hw *hw)
rd32(IGC_MPC);
}

+bool igc_is_device_id_i225(struct igc_hw *hw)
+{
+ switch (hw->device_id) {
+ case IGC_DEV_ID_I225_LM:
+ case IGC_DEV_ID_I225_V:
+ case IGC_DEV_ID_I225_I:
+ case IGC_DEV_ID_I225_K:
+ case IGC_DEV_ID_I225_K2:
+ case IGC_DEV_ID_I225_LMVP:
+ case IGC_DEV_ID_I225_IT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+bool igc_is_device_id_i226(struct igc_hw *hw)
+{
+ switch (hw->device_id) {
+ case IGC_DEV_ID_I226_LM:
+ case IGC_DEV_ID_I226_V:
+ case IGC_DEV_ID_I226_K:
+ case IGC_DEV_ID_I226_IT:
+ return true;
+ default:
+ return false;
+ }
+}
+
static struct igc_mac_operations igc_mac_ops_base = {
.init_hw = igc_init_hw_base,
.check_for_link = igc_check_for_copper_link,
diff --git a/drivers/net/ethernet/intel/igc/igc_base.h b/drivers/net/ethernet/intel/igc/igc_base.h
index 52849f5e8048..9f3827eda157 100644
--- a/drivers/net/ethernet/intel/igc/igc_base.h
+++ b/drivers/net/ethernet/intel/igc/igc_base.h
@@ -7,6 +7,8 @@
/* forward declaration */
void igc_rx_fifo_flush_base(struct igc_hw *hw);
void igc_power_down_phy_copper_base(struct igc_hw *hw);
+bool igc_is_device_id_i225(struct igc_hw *hw);
+bool igc_is_device_id_i226(struct igc_hw *hw);

/* Transmit Descriptor - Advanced */
union igc_adv_tx_desc {
diff --git a/drivers/net/ethernet/intel/igc/igc_defines.h b/drivers/net/ethernet/intel/igc/igc_defines.h
index 703b62c5f79b..d5acee27894e 100644
--- a/drivers/net/ethernet/intel/igc/igc_defines.h
+++ b/drivers/net/ethernet/intel/igc/igc_defines.h
@@ -405,6 +405,21 @@
#define IGC_DTXMXPKTSZ_TSN 0x19 /* 1600 bytes of max TX DMA packet size */
#define IGC_DTXMXPKTSZ_DEFAULT 0x98 /* 9728-byte Jumbo frames */

+/* Retry Buffer Control */
+#define IGC_RETX_CTL 0x041C
+#define IGC_RETX_CTL_WATERMARK_MASK 0xF
+#define IGC_RETX_CTL_QBVFULLTH_SHIFT 8 /* QBV Retry Buffer Full Threshold */
+#define IGC_RETX_CTL_QBVFULLEN 0x1000 /* Enable QBV Retry Buffer Full Threshold */
+
+/* Transmit Scheduling Latency */
+/* Latency between transmission scheduling (LaunchTime) and the time
+ * the packet is transmitted to the network in nanosecond.
+ */
+#define IGC_TXOFFSET_SPEED_10 0x000034BC
+#define IGC_TXOFFSET_SPEED_100 0x00000578
+#define IGC_TXOFFSET_SPEED_1000 0x0000012C
+#define IGC_TXOFFSET_SPEED_2500 0x00000578
+
/* Time Sync Interrupt Causes */
#define IGC_TSICR_SYS_WRAP BIT(0) /* SYSTIM Wrap around. */
#define IGC_TSICR_TXTS BIT(1) /* Transmit Timestamp. */
@@ -518,6 +533,7 @@
/* Transmit Scheduling */
#define IGC_TQAVCTRL_TRANSMIT_MODE_TSN 0x00000001
#define IGC_TQAVCTRL_ENHANCED_QAV 0x00000008
+#define IGC_TQAVCTRL_FUTSCDDIS 0x00000080

#define IGC_TXQCTL_QUEUE_MODE_LAUNCHT 0x00000001
#define IGC_TXQCTL_STRICT_CYCLE 0x00000002
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 6185566fbb98..7605115e6a1b 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -5532,6 +5532,13 @@ static void igc_watchdog_task(struct work_struct *work)
break;
}

+ /* Once the launch time has been set on the wire, there
+ * is a delay before the link speed can be determined
+ * based on link-up activity. Write into the register
+ * as soon as we know the correct link speed.
+ */
+ igc_tsn_adjust_txtime_offset(adapter);
+
if (adapter->link_speed != SPEED_1000)
goto no_wait;

@@ -5984,6 +5991,7 @@ static bool validate_schedule(struct igc_adapter *adapter,
const struct tc_taprio_qopt_offload *qopt)
{
int queue_uses[IGC_MAX_TX_QUEUES] = { };
+ struct igc_hw *hw = &adapter->hw;
struct timespec64 now;
size_t n;

@@ -5996,8 +6004,10 @@ static bool validate_schedule(struct igc_adapter *adapter,
* in the future, it will hold all the packets until that
* time, causing a lot of TX Hangs, so to avoid that, we
* reject schedules that would start in the future.
+ * Note: Limitation above is no longer in i226.
*/
- if (!is_base_time_past(qopt->base_time, &now))
+ if (!is_base_time_past(qopt->base_time, &now) &&
+ igc_is_device_id_i225(hw))
return false;

for (n = 0; n < qopt->num_entries; n++) {
diff --git a/drivers/net/ethernet/intel/igc/igc_regs.h b/drivers/net/ethernet/intel/igc/igc_regs.h
index 026c3b65fc37..0e9c1298f36f 100644
--- a/drivers/net/ethernet/intel/igc/igc_regs.h
+++ b/drivers/net/ethernet/intel/igc/igc_regs.h
@@ -227,6 +227,7 @@
/* Transmit Scheduling Registers */
#define IGC_TQAVCTRL 0x3570
#define IGC_TXQCTL(_n) (0x3344 + 0x4 * (_n))
+#define IGC_GTXOFFSET 0x3310
#define IGC_BASET_L 0x3314
#define IGC_BASET_H 0x3318
#define IGC_QBVCYCLET 0x331C
diff --git a/drivers/net/ethernet/intel/igc/igc_tsn.c b/drivers/net/ethernet/intel/igc/igc_tsn.c
index 2330b1ff915e..27ce2f7dfeed 100644
--- a/drivers/net/ethernet/intel/igc/igc_tsn.c
+++ b/drivers/net/ethernet/intel/igc/igc_tsn.c
@@ -2,6 +2,7 @@
/* Copyright (c) 2019 Intel Corporation */

#include "igc.h"
+#include "igc_hw.h"
#include "igc_tsn.h"

static bool is_any_launchtime(struct igc_adapter *adapter)
@@ -48,6 +49,51 @@ static unsigned int igc_tsn_new_flags(struct igc_adapter *adapter)
return new_flags;
}

+static bool igc_tsn_is_tx_mode_in_tsn(struct igc_adapter *adapter)
+{
+ struct igc_hw *hw = &adapter->hw;
+
+ return !!(rd32(IGC_TQAVCTRL) & IGC_TQAVCTRL_TRANSMIT_MODE_TSN);
+}
+
+void igc_tsn_adjust_txtime_offset(struct igc_adapter *adapter)
+{
+ struct igc_hw *hw = &adapter->hw;
+ u16 txoffset;
+
+ if (!igc_tsn_is_tx_mode_in_tsn(adapter))
+ return;
+
+ switch (adapter->link_speed) {
+ case SPEED_10:
+ txoffset = IGC_TXOFFSET_SPEED_10;
+ break;
+ case SPEED_100:
+ txoffset = IGC_TXOFFSET_SPEED_100;
+ break;
+ case SPEED_1000:
+ txoffset = IGC_TXOFFSET_SPEED_1000;
+ break;
+ case SPEED_2500:
+ txoffset = IGC_TXOFFSET_SPEED_2500;
+ break;
+ default:
+ txoffset = 0;
+ break;
+ }
+
+ wr32(IGC_GTXOFFSET, txoffset);
+}
+
+static void igc_tsn_restore_retx_default(struct igc_adapter *adapter)
+{
+ struct igc_hw *hw = &adapter->hw;
+ u32 retxctl;
+
+ retxctl = rd32(IGC_RETX_CTL) & IGC_RETX_CTL_WATERMARK_MASK;
+ wr32(IGC_RETX_CTL, retxctl);
+}
+
/* Returns the TSN specific registers to their default values after
* the adapter is reset.
*/
@@ -57,12 +103,17 @@ static int igc_tsn_disable_offload(struct igc_adapter *adapter)
u32 tqavctrl;
int i;

+ wr32(IGC_GTXOFFSET, 0);
wr32(IGC_TXPBS, I225_TXPBSIZE_DEFAULT);
wr32(IGC_DTXMXPKTSZ, IGC_DTXMXPKTSZ_DEFAULT);

+ if (igc_is_device_id_i226(hw))
+ igc_tsn_restore_retx_default(adapter);
+
tqavctrl = rd32(IGC_TQAVCTRL);
tqavctrl &= ~(IGC_TQAVCTRL_TRANSMIT_MODE_TSN |
- IGC_TQAVCTRL_ENHANCED_QAV);
+ IGC_TQAVCTRL_ENHANCED_QAV | IGC_TQAVCTRL_FUTSCDDIS);
+
wr32(IGC_TQAVCTRL, tqavctrl);

for (i = 0; i < adapter->num_tx_queues; i++) {
@@ -79,6 +130,25 @@ static int igc_tsn_disable_offload(struct igc_adapter *adapter)
return 0;
}

+/* To partially fix i226 HW errata, reduce MAC internal buffering from 192 Bytes
+ * to 88 Bytes by setting RETX_CTL register using the recommendation from:
+ * a) Ethernet Controller I225/I226 Specification Update Rev 2.1
+ * Item 9: TSN: Packet Transmission Might Cross the Qbv Window
+ * b) I225/6 SW User Manual Rev 1.2.4: Section 8.11.5 Retry Buffer Control
+ */
+static void igc_tsn_set_retx_qbvfullthreshold(struct igc_adapter *adapter)
+{
+ struct igc_hw *hw = &adapter->hw;
+ u32 retxctl, watermark;
+
+ retxctl = rd32(IGC_RETX_CTL);
+ watermark = retxctl & IGC_RETX_CTL_WATERMARK_MASK;
+ /* Set QBVFULLTH value using watermark and set QBVFULLEN */
+ retxctl |= (watermark << IGC_RETX_CTL_QBVFULLTH_SHIFT) |
+ IGC_RETX_CTL_QBVFULLEN;
+ wr32(IGC_RETX_CTL, retxctl);
+}
+
static int igc_tsn_enable_offload(struct igc_adapter *adapter)
{
struct igc_hw *hw = &adapter->hw;
@@ -87,19 +157,12 @@ static int igc_tsn_enable_offload(struct igc_adapter *adapter)
ktime_t base_time, systim;
int i;

- cycle = adapter->cycle_time;
- base_time = adapter->base_time;
-
wr32(IGC_TSAUXC, 0);
wr32(IGC_DTXMXPKTSZ, IGC_DTXMXPKTSZ_TSN);
wr32(IGC_TXPBS, IGC_TXPBSIZE_TSN);

- tqavctrl = rd32(IGC_TQAVCTRL);
- tqavctrl |= IGC_TQAVCTRL_TRANSMIT_MODE_TSN | IGC_TQAVCTRL_ENHANCED_QAV;
- wr32(IGC_TQAVCTRL, tqavctrl);
-
- wr32(IGC_QBVCYCLET_S, cycle);
- wr32(IGC_QBVCYCLET, cycle);
+ if (igc_is_device_id_i226(hw))
+ igc_tsn_set_retx_qbvfullthreshold(adapter);

for (i = 0; i < adapter->num_tx_queues; i++) {
struct igc_ring *ring = adapter->tx_ring[i];
@@ -203,21 +266,43 @@ static int igc_tsn_enable_offload(struct igc_adapter *adapter)
wr32(IGC_TXQCTL(i), txqctl);
}

+ tqavctrl = rd32(IGC_TQAVCTRL);
+ tqavctrl |= IGC_TQAVCTRL_TRANSMIT_MODE_TSN | IGC_TQAVCTRL_ENHANCED_QAV;
+
+ cycle = adapter->cycle_time;
+ base_time = adapter->base_time;
+
nsec = rd32(IGC_SYSTIML);
sec = rd32(IGC_SYSTIMH);

systim = ktime_set(sec, nsec);
-
if (ktime_compare(systim, base_time) > 0) {
- s64 n;
+ s64 n = div64_s64(ktime_sub_ns(systim, base_time), cycle);

- n = div64_s64(ktime_sub_ns(systim, base_time), cycle);
base_time = ktime_add_ns(base_time, (n + 1) * cycle);
+ } else {
+ /* According to datasheet section 7.5.2.9.3.3, FutScdDis bit
+ * has to be configured before the cycle time and base time.
+ */
+ if (igc_is_device_id_i226(hw))
+ tqavctrl |= IGC_TQAVCTRL_FUTSCDDIS;
}

- baset_h = div_s64_rem(base_time, NSEC_PER_SEC, &baset_l);
+ wr32(IGC_TQAVCTRL, tqavctrl);

+ wr32(IGC_QBVCYCLET_S, cycle);
+ wr32(IGC_QBVCYCLET, cycle);
+
+ baset_h = div_s64_rem(base_time, NSEC_PER_SEC, &baset_l);
wr32(IGC_BASET_H, baset_h);
+
+ /* In i226, Future base time is only supported when FutScdDis bit
+ * is enabled and only active for re-configuration.
+ * In this case, initialize the base time with zero to create
+ * "re-configuration" scenario then only set the desired base time.
+ */
+ if (tqavctrl & IGC_TQAVCTRL_FUTSCDDIS)
+ wr32(IGC_BASET_L, 0);
wr32(IGC_BASET_L, baset_l);

return 0;
diff --git a/drivers/net/ethernet/intel/igc/igc_tsn.h b/drivers/net/ethernet/intel/igc/igc_tsn.h
index 1512307f5a52..b53e6af560b7 100644
--- a/drivers/net/ethernet/intel/igc/igc_tsn.h
+++ b/drivers/net/ethernet/intel/igc/igc_tsn.h
@@ -6,5 +6,6 @@

int igc_tsn_offload_apply(struct igc_adapter *adapter);
int igc_tsn_reset(struct igc_adapter *adapter);
+void igc_tsn_adjust_txtime_offset(struct igc_adapter *adapter);

#endif /* _IGC_BASE_H */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
index d32b70c62c94..32212bc41df3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
@@ -727,7 +727,7 @@ mlx5e_ethtool_flow_replace(struct mlx5e_priv *priv,
if (num_tuples <= 0) {
netdev_warn(priv->netdev, "%s: flow is not valid %d\n",
__func__, num_tuples);
- return num_tuples;
+ return num_tuples < 0 ? num_tuples : -EINVAL;
}

eth_ft = get_flow_table(priv, fs, num_tuples);
diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h
index 0fdf2c8ca480..0e4ece5ab797 100644
--- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h
+++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h
@@ -39,6 +39,7 @@
*/
#define MLXBF_GIGE_BCAST_MAC_FILTER_IDX 0
#define MLXBF_GIGE_LOCAL_MAC_FILTER_IDX 1
+#define MLXBF_GIGE_MAX_FILTER_IDX 3

/* Define for broadcast MAC literal */
#define BCAST_MAC_ADDR 0xFFFFFFFFFFFF
@@ -151,9 +152,13 @@ enum mlxbf_gige_res {
int mlxbf_gige_mdio_probe(struct platform_device *pdev,
struct mlxbf_gige *priv);
void mlxbf_gige_mdio_remove(struct mlxbf_gige *priv);
-irqreturn_t mlxbf_gige_mdio_handle_phy_interrupt(int irq, void *dev_id);
-void mlxbf_gige_mdio_enable_phy_int(struct mlxbf_gige *priv);

+void mlxbf_gige_enable_multicast_rx(struct mlxbf_gige *priv);
+void mlxbf_gige_disable_multicast_rx(struct mlxbf_gige *priv);
+void mlxbf_gige_enable_mac_rx_filter(struct mlxbf_gige *priv,
+ unsigned int index);
+void mlxbf_gige_disable_mac_rx_filter(struct mlxbf_gige *priv,
+ unsigned int index);
void mlxbf_gige_set_mac_rx_filter(struct mlxbf_gige *priv,
unsigned int index, u64 dmac);
void mlxbf_gige_get_mac_rx_filter(struct mlxbf_gige *priv,
diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c
index c644ee78e0b4..60cea337fe8e 100644
--- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c
+++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c
@@ -170,6 +170,10 @@ static int mlxbf_gige_open(struct net_device *netdev)
if (err)
goto napi_deinit;

+ mlxbf_gige_enable_mac_rx_filter(priv, MLXBF_GIGE_BCAST_MAC_FILTER_IDX);
+ mlxbf_gige_enable_mac_rx_filter(priv, MLXBF_GIGE_LOCAL_MAC_FILTER_IDX);
+ mlxbf_gige_enable_multicast_rx(priv);
+
/* Set bits in INT_EN that we care about */
int_en = MLXBF_GIGE_INT_EN_HW_ACCESS_ERROR |
MLXBF_GIGE_INT_EN_TX_CHECKSUM_INPUTS |
@@ -295,6 +299,7 @@ static int mlxbf_gige_probe(struct platform_device *pdev)
void __iomem *plu_base;
void __iomem *base;
int addr, phy_irq;
+ unsigned int i;
int err;

base = devm_platform_ioremap_resource(pdev, MLXBF_GIGE_RES_MAC);
@@ -337,6 +342,11 @@ static int mlxbf_gige_probe(struct platform_device *pdev)
priv->rx_q_entries = MLXBF_GIGE_DEFAULT_RXQ_SZ;
priv->tx_q_entries = MLXBF_GIGE_DEFAULT_TXQ_SZ;

+ for (i = 0; i <= MLXBF_GIGE_MAX_FILTER_IDX; i++)
+ mlxbf_gige_disable_mac_rx_filter(priv, i);
+ mlxbf_gige_disable_multicast_rx(priv);
+ mlxbf_gige_disable_promisc(priv);
+
/* Write initial MAC address to hardware */
mlxbf_gige_initial_mac(priv);

diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_regs.h b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_regs.h
index 7be3a793984d..d27535a1fb86 100644
--- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_regs.h
+++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_regs.h
@@ -59,6 +59,8 @@
#define MLXBF_GIGE_TX_STATUS_DATA_FIFO_FULL BIT(1)
#define MLXBF_GIGE_RX_MAC_FILTER_DMAC_RANGE_START 0x0520
#define MLXBF_GIGE_RX_MAC_FILTER_DMAC_RANGE_END 0x0528
+#define MLXBF_GIGE_RX_MAC_FILTER_GENERAL 0x0530
+#define MLXBF_GIGE_RX_MAC_FILTER_EN_MULTICAST BIT(1)
#define MLXBF_GIGE_RX_MAC_FILTER_COUNT_DISC 0x0540
#define MLXBF_GIGE_RX_MAC_FILTER_COUNT_DISC_EN BIT(0)
#define MLXBF_GIGE_RX_MAC_FILTER_COUNT_PASS 0x0548
diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_rx.c b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_rx.c
index 699984358493..eb62620b63c7 100644
--- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_rx.c
+++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_rx.c
@@ -11,15 +11,31 @@
#include "mlxbf_gige.h"
#include "mlxbf_gige_regs.h"

-void mlxbf_gige_set_mac_rx_filter(struct mlxbf_gige *priv,
- unsigned int index, u64 dmac)
+void mlxbf_gige_enable_multicast_rx(struct mlxbf_gige *priv)
{
void __iomem *base = priv->base;
- u64 control;
+ u64 data;

- /* Write destination MAC to specified MAC RX filter */
- writeq(dmac, base + MLXBF_GIGE_RX_MAC_FILTER +
- (index * MLXBF_GIGE_RX_MAC_FILTER_STRIDE));
+ data = readq(base + MLXBF_GIGE_RX_MAC_FILTER_GENERAL);
+ data |= MLXBF_GIGE_RX_MAC_FILTER_EN_MULTICAST;
+ writeq(data, base + MLXBF_GIGE_RX_MAC_FILTER_GENERAL);
+}
+
+void mlxbf_gige_disable_multicast_rx(struct mlxbf_gige *priv)
+{
+ void __iomem *base = priv->base;
+ u64 data;
+
+ data = readq(base + MLXBF_GIGE_RX_MAC_FILTER_GENERAL);
+ data &= ~MLXBF_GIGE_RX_MAC_FILTER_EN_MULTICAST;
+ writeq(data, base + MLXBF_GIGE_RX_MAC_FILTER_GENERAL);
+}
+
+void mlxbf_gige_enable_mac_rx_filter(struct mlxbf_gige *priv,
+ unsigned int index)
+{
+ void __iomem *base = priv->base;
+ u64 control;

/* Enable MAC receive filter mask for specified index */
control = readq(base + MLXBF_GIGE_CONTROL);
@@ -27,6 +43,28 @@ void mlxbf_gige_set_mac_rx_filter(struct mlxbf_gige *priv,
writeq(control, base + MLXBF_GIGE_CONTROL);
}

+void mlxbf_gige_disable_mac_rx_filter(struct mlxbf_gige *priv,
+ unsigned int index)
+{
+ void __iomem *base = priv->base;
+ u64 control;
+
+ /* Disable MAC receive filter mask for specified index */
+ control = readq(base + MLXBF_GIGE_CONTROL);
+ control &= ~(MLXBF_GIGE_CONTROL_EN_SPECIFIC_MAC << index);
+ writeq(control, base + MLXBF_GIGE_CONTROL);
+}
+
+void mlxbf_gige_set_mac_rx_filter(struct mlxbf_gige *priv,
+ unsigned int index, u64 dmac)
+{
+ void __iomem *base = priv->base;
+
+ /* Write destination MAC to specified MAC RX filter */
+ writeq(dmac, base + MLXBF_GIGE_RX_MAC_FILTER +
+ (index * MLXBF_GIGE_RX_MAC_FILTER_STRIDE));
+}
+
void mlxbf_gige_get_mac_rx_filter(struct mlxbf_gige *priv,
unsigned int index, u64 *dmac)
{
diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
index d5c485a6d284..508f83c29f32 100644
--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c
+++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c
@@ -51,9 +51,33 @@ static int mana_hwc_verify_resp_msg(const struct hwc_caller_ctx *caller_ctx,
return 0;
}

+static int mana_hwc_post_rx_wqe(const struct hwc_wq *hwc_rxq,
+ struct hwc_work_request *req)
+{
+ struct device *dev = hwc_rxq->hwc->dev;
+ struct gdma_sge *sge;
+ int err;
+
+ sge = &req->sge;
+ sge->address = (u64)req->buf_sge_addr;
+ sge->mem_key = hwc_rxq->msg_buf->gpa_mkey;
+ sge->size = req->buf_len;
+
+ memset(&req->wqe_req, 0, sizeof(struct gdma_wqe_request));
+ req->wqe_req.sgl = sge;
+ req->wqe_req.num_sge = 1;
+ req->wqe_req.client_data_unit = 0;
+
+ err = mana_gd_post_and_ring(hwc_rxq->gdma_wq, &req->wqe_req, NULL);
+ if (err)
+ dev_err(dev, "Failed to post WQE on HWC RQ: %d\n", err);
+ return err;
+}
+
static void mana_hwc_handle_resp(struct hw_channel_context *hwc, u32 resp_len,
- const struct gdma_resp_hdr *resp_msg)
+ struct hwc_work_request *rx_req)
{
+ const struct gdma_resp_hdr *resp_msg = rx_req->buf_va;
struct hwc_caller_ctx *ctx;
int err;

@@ -61,6 +85,7 @@ static void mana_hwc_handle_resp(struct hw_channel_context *hwc, u32 resp_len,
hwc->inflight_msg_res.map)) {
dev_err(hwc->dev, "hwc_rx: invalid msg_id = %u\n",
resp_msg->response.hwc_msg_id);
+ mana_hwc_post_rx_wqe(hwc->rxq, rx_req);
return;
}

@@ -74,30 +99,13 @@ static void mana_hwc_handle_resp(struct hw_channel_context *hwc, u32 resp_len,
memcpy(ctx->output_buf, resp_msg, resp_len);
out:
ctx->error = err;
- complete(&ctx->comp_event);
-}
-
-static int mana_hwc_post_rx_wqe(const struct hwc_wq *hwc_rxq,
- struct hwc_work_request *req)
-{
- struct device *dev = hwc_rxq->hwc->dev;
- struct gdma_sge *sge;
- int err;
-
- sge = &req->sge;
- sge->address = (u64)req->buf_sge_addr;
- sge->mem_key = hwc_rxq->msg_buf->gpa_mkey;
- sge->size = req->buf_len;

- memset(&req->wqe_req, 0, sizeof(struct gdma_wqe_request));
- req->wqe_req.sgl = sge;
- req->wqe_req.num_sge = 1;
- req->wqe_req.client_data_unit = 0;
+ /* Must post rx wqe before complete(), otherwise the next rx may
+ * hit no_wqe error.
+ */
+ mana_hwc_post_rx_wqe(hwc->rxq, rx_req);

- err = mana_gd_post_and_ring(hwc_rxq->gdma_wq, &req->wqe_req, NULL);
- if (err)
- dev_err(dev, "Failed to post WQE on HWC RQ: %d\n", err);
- return err;
+ complete(&ctx->comp_event);
}

static void mana_hwc_init_event_handler(void *ctx, struct gdma_queue *q_self,
@@ -208,14 +216,12 @@ static void mana_hwc_rx_event_handler(void *ctx, u32 gdma_rxq_id,
return;
}

- mana_hwc_handle_resp(hwc, rx_oob->tx_oob_data_size, resp);
+ mana_hwc_handle_resp(hwc, rx_oob->tx_oob_data_size, rx_req);

- /* Do no longer use 'resp', because the buffer is posted to the HW
- * in the below mana_hwc_post_rx_wqe().
+ /* Can no longer use 'resp', because the buffer is posted to the HW
+ * in mana_hwc_handle_resp() above.
*/
resp = NULL;
-
- mana_hwc_post_rx_wqe(hwc_rxq, rx_req);
}

static void mana_hwc_tx_event_handler(void *ctx, u32 gdma_txq_id,
diff --git a/drivers/net/ethernet/microsoft/mana/mana.h b/drivers/net/ethernet/microsoft/mana/mana.h
index fc98a5ba5ed0..35e937a7079c 100644
--- a/drivers/net/ethernet/microsoft/mana/mana.h
+++ b/drivers/net/ethernet/microsoft/mana/mana.h
@@ -252,6 +252,7 @@ struct mana_cq {
/* NAPI data */
struct napi_struct napi;
int work_done;
+ int work_done_since_doorbell;
int budget;
};

diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c
index 6224b7c21e0a..b0963fda4d9f 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_en.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_en.c
@@ -1074,7 +1074,6 @@ static void mana_poll_rx_cq(struct mana_cq *cq)
static int mana_cq_handler(void *context, struct gdma_queue *gdma_queue)
{
struct mana_cq *cq = context;
- u8 arm_bit;
int w;

WARN_ON_ONCE(cq->gdma_cq != gdma_queue);
@@ -1085,16 +1084,23 @@ static int mana_cq_handler(void *context, struct gdma_queue *gdma_queue)
mana_poll_tx_cq(cq);

w = cq->work_done;
-
- if (w < cq->budget &&
- napi_complete_done(&cq->napi, w)) {
- arm_bit = SET_ARM_BIT;
- } else {
- arm_bit = 0;
+ cq->work_done_since_doorbell += w;
+
+ if (w < cq->budget) {
+ mana_gd_ring_cq(gdma_queue, SET_ARM_BIT);
+ cq->work_done_since_doorbell = 0;
+ napi_complete_done(&cq->napi, w);
+ } else if (cq->work_done_since_doorbell >
+ cq->gdma_cq->queue_size / COMP_ENTRY_SIZE * 4) {
+ /* MANA hardware requires at least one doorbell ring every 8
+ * wraparounds of CQ even if there is no need to arm the CQ.
+ * This driver rings the doorbell as soon as we have exceeded
+ * 4 wraparounds.
+ */
+ mana_gd_ring_cq(gdma_queue, 0);
+ cq->work_done_since_doorbell = 0;
}

- mana_gd_ring_cq(gdma_queue, arm_bit);
-
return w;
}

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h
index 5b4d153b1492..bdda83611509 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet.h
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h
@@ -159,16 +159,17 @@
#define XAE_RCW1_OFFSET 0x00000404 /* Rx Configuration Word 1 */
#define XAE_TC_OFFSET 0x00000408 /* Tx Configuration */
#define XAE_FCC_OFFSET 0x0000040C /* Flow Control Configuration */
-#define XAE_EMMC_OFFSET 0x00000410 /* EMAC mode configuration */
-#define XAE_PHYC_OFFSET 0x00000414 /* RGMII/SGMII configuration */
+#define XAE_EMMC_OFFSET 0x00000410 /* MAC speed configuration */
+#define XAE_PHYC_OFFSET 0x00000414 /* RX Max Frame Configuration */
#define XAE_ID_OFFSET 0x000004F8 /* Identification register */
-#define XAE_MDIO_MC_OFFSET 0x00000500 /* MII Management Config */
-#define XAE_MDIO_MCR_OFFSET 0x00000504 /* MII Management Control */
-#define XAE_MDIO_MWD_OFFSET 0x00000508 /* MII Management Write Data */
-#define XAE_MDIO_MRD_OFFSET 0x0000050C /* MII Management Read Data */
+#define XAE_MDIO_MC_OFFSET 0x00000500 /* MDIO Setup */
+#define XAE_MDIO_MCR_OFFSET 0x00000504 /* MDIO Control */
+#define XAE_MDIO_MWD_OFFSET 0x00000508 /* MDIO Write Data */
+#define XAE_MDIO_MRD_OFFSET 0x0000050C /* MDIO Read Data */
#define XAE_UAW0_OFFSET 0x00000700 /* Unicast address word 0 */
#define XAE_UAW1_OFFSET 0x00000704 /* Unicast address word 1 */
-#define XAE_FMI_OFFSET 0x00000708 /* Filter Mask Index */
+#define XAE_FMI_OFFSET 0x00000708 /* Frame Filter Control */
+#define XAE_FFE_OFFSET 0x0000070C /* Frame Filter Enable */
#define XAE_AF0_OFFSET 0x00000710 /* Address Filter 0 */
#define XAE_AF1_OFFSET 0x00000714 /* Address Filter 1 */

@@ -307,7 +308,7 @@
*/
#define XAE_UAW1_UNICASTADDR_MASK 0x0000FFFF

-/* Bit masks for Axi Ethernet FMI register */
+/* Bit masks for Axi Ethernet FMC register */
#define XAE_FMI_PM_MASK 0x80000000 /* Promis. mode enable */
#define XAE_FMI_IND_MASK 0x00000003 /* Index Mask */

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 63f33126d02f..0ca350faa484 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -409,7 +409,7 @@ static int netdev_set_mac_address(struct net_device *ndev, void *p)
*/
static void axienet_set_multicast_list(struct net_device *ndev)
{
- int i;
+ int i = 0;
u32 reg, af0reg, af1reg;
struct axienet_local *lp = netdev_priv(ndev);

@@ -427,7 +427,10 @@ static void axienet_set_multicast_list(struct net_device *ndev)
} else if (!netdev_mc_empty(ndev)) {
struct netdev_hw_addr *ha;

- i = 0;
+ reg = axienet_ior(lp, XAE_FMI_OFFSET);
+ reg &= ~XAE_FMI_PM_MASK;
+ axienet_iow(lp, XAE_FMI_OFFSET, reg);
+
netdev_for_each_mc_addr(ha, ndev) {
if (i >= XAE_MULTICAST_CAM_TABLE_NUM)
break;
@@ -446,6 +449,7 @@ static void axienet_set_multicast_list(struct net_device *ndev)
axienet_iow(lp, XAE_FMI_OFFSET, reg);
axienet_iow(lp, XAE_AF0_OFFSET, af0reg);
axienet_iow(lp, XAE_AF1_OFFSET, af1reg);
+ axienet_iow(lp, XAE_FFE_OFFSET, 1);
i++;
}
} else {
@@ -453,18 +457,15 @@ static void axienet_set_multicast_list(struct net_device *ndev)
reg &= ~XAE_FMI_PM_MASK;

axienet_iow(lp, XAE_FMI_OFFSET, reg);
-
- for (i = 0; i < XAE_MULTICAST_CAM_TABLE_NUM; i++) {
- reg = axienet_ior(lp, XAE_FMI_OFFSET) & 0xFFFFFF00;
- reg |= i;
-
- axienet_iow(lp, XAE_FMI_OFFSET, reg);
- axienet_iow(lp, XAE_AF0_OFFSET, 0);
- axienet_iow(lp, XAE_AF1_OFFSET, 0);
- }
-
dev_info(&ndev->dev, "Promiscuous mode disabled.\n");
}
+
+ for (; i < XAE_MULTICAST_CAM_TABLE_NUM; i++) {
+ reg = axienet_ior(lp, XAE_FMI_OFFSET) & 0xFFFFFF00;
+ reg |= i;
+ axienet_iow(lp, XAE_FMI_OFFSET, reg);
+ axienet_iow(lp, XAE_FFE_OFFSET, 0);
+ }
}

/**
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 3271428e64b8..40c94df382e5 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -572,6 +572,9 @@ static netdev_tx_t gtp_dev_xmit(struct sk_buff *skb, struct net_device *dev)
if (skb_cow_head(skb, dev->needed_headroom))
goto tx_err;

+ if (!pskb_inet_may_pull(skb))
+ goto tx_err;
+
skb_reset_inner_headers(skb);

/* PDP context lookups in gtp_build_skb_*() need rcu read-side lock. */
@@ -814,7 +817,7 @@ static struct sock *gtp_encap_enable_socket(int fd, int type,
sock = sockfd_lookup(fd, &err);
if (!sock) {
pr_debug("gtp socket fd=%d not found\n", fd);
- return NULL;
+ return ERR_PTR(err);
}

sk = sock->sk;
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
index e372f935f698..6419fbfec5ac 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
@@ -163,7 +163,11 @@ static int iwl_dbgfs_enabled_severities_write(struct iwl_fw_runtime *fwrt,

event_cfg.enabled_severities = cpu_to_le32(enabled_severities);

- ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
+ if (fwrt->ops && fwrt->ops->send_hcmd)
+ ret = fwrt->ops->send_hcmd(fwrt->ops_ctx, &hcmd);
+ else
+ ret = -EPERM;
+
IWL_INFO(fwrt,
"sent host event cfg with enabled_severities: %u, ret: %d\n",
enabled_severities, ret);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index 8179a7395bca..4bab14ceef5f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -3068,7 +3068,7 @@ int iwl_mvm_scan_stop(struct iwl_mvm *mvm, int type, bool notify)
if (!(mvm->scan_status & type))
return 0;

- if (iwl_mvm_is_radio_killed(mvm)) {
+ if (!test_bit(STATUS_DEVICE_ENABLED, &mvm->trans->status)) {
ret = 0;
goto out;
}
diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index 4257b4ca7d6e..0273d3e5e0b5 100644
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -4328,11 +4328,27 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);

- wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
- if (adapter->config_bands & BAND_A)
- wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
- else
+ wiphy->bands[NL80211_BAND_2GHZ] = devm_kmemdup(adapter->dev,
+ &mwifiex_band_2ghz,
+ sizeof(mwifiex_band_2ghz),
+ GFP_KERNEL);
+ if (!wiphy->bands[NL80211_BAND_2GHZ]) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ if (adapter->config_bands & BAND_A) {
+ wiphy->bands[NL80211_BAND_5GHZ] = devm_kmemdup(adapter->dev,
+ &mwifiex_band_5ghz,
+ sizeof(mwifiex_band_5ghz),
+ GFP_KERNEL);
+ if (!wiphy->bands[NL80211_BAND_5GHZ]) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ } else {
wiphy->bands[NL80211_BAND_5GHZ] = NULL;
+ }

if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
@@ -4425,8 +4441,7 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
if (ret < 0) {
mwifiex_dbg(adapter, ERROR,
"%s: wiphy_register failed: %d\n", __func__, ret);
- wiphy_free(wiphy);
- return ret;
+ goto err;
}

if (!adapter->regd) {
@@ -4468,4 +4483,9 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)

adapter->wiphy = wiphy;
return ret;
+
+err:
+ wiphy_free(wiphy);
+
+ return ret;
}
diff --git a/drivers/net/wireless/st/cw1200/txrx.c b/drivers/net/wireless/st/cw1200/txrx.c
index 7de666b90ff5..9c998f4ac4a9 100644
--- a/drivers/net/wireless/st/cw1200/txrx.c
+++ b/drivers/net/wireless/st/cw1200/txrx.c
@@ -1170,7 +1170,7 @@ void cw1200_rx_cb(struct cw1200_common *priv,
size_t ies_len = skb->len - (ies - (u8 *)(skb->data));

tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies, ies_len);
- if (tim_ie) {
+ if (tim_ie && tim_ie[1] >= sizeof(struct ieee80211_tim_ie)) {
struct ieee80211_tim_ie *tim =
(struct ieee80211_tim_ie *)&tim_ie[2];

diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
index 939d27652a4c..fceae9c12760 100644
--- a/drivers/nfc/pn533/pn533.c
+++ b/drivers/nfc/pn533/pn533.c
@@ -1725,6 +1725,11 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev,
}

pn533_poll_create_mod_list(dev, im_protocols, tm_protocols);
+ if (!dev->poll_mod_count) {
+ nfc_err(dev->dev,
+ "Poll mod list is empty\n");
+ return -EINVAL;
+ }

/* Do not always start polling from the same modulation */
get_random_bytes(&rand_mod, sizeof(rand_mod));
diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index 18e082091c82..9561ba3d4313 100644
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -472,12 +472,8 @@ nvmet_rdma_alloc_rsps(struct nvmet_rdma_queue *queue)
return 0;

out_free:
- while (--i >= 0) {
- struct nvmet_rdma_rsp *rsp = &queue->rsps[i];
-
- list_del(&rsp->free_list);
- nvmet_rdma_free_rsp(ndev, rsp);
- }
+ while (--i >= 0)
+ nvmet_rdma_free_rsp(ndev, &queue->rsps[i]);
kfree(queue->rsps);
out:
return ret;
@@ -488,12 +484,8 @@ static void nvmet_rdma_free_rsps(struct nvmet_rdma_queue *queue)
struct nvmet_rdma_device *ndev = queue->dev;
int i, nr_rsps = queue->recv_queue_size * 2;

- for (i = 0; i < nr_rsps; i++) {
- struct nvmet_rdma_rsp *rsp = &queue->rsps[i];
-
- list_del(&rsp->free_list);
- nvmet_rdma_free_rsp(ndev, rsp);
- }
+ for (i = 0; i < nr_rsps; i++)
+ nvmet_rdma_free_rsp(ndev, &queue->rsps[i]);
kfree(queue->rsps);
}

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index 8468a41322f2..df044a79a734 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -858,6 +858,7 @@ static int nvmet_tcp_handle_icreq(struct nvmet_tcp_queue *queue)
pr_err("bad nvme-tcp pdu length (%d)\n",
le32_to_cpu(icreq->hdr.plen));
nvmet_tcp_fatal_error(queue);
+ return -EPROTO;
}

if (icreq->pfv != NVME_TCP_PFV_1_0) {
diff --git a/drivers/nvme/target/trace.c b/drivers/nvme/target/trace.c
index bff454d46255..6ee1f3db81d0 100644
--- a/drivers/nvme/target/trace.c
+++ b/drivers/nvme/target/trace.c
@@ -211,7 +211,7 @@ const char *nvmet_trace_disk_name(struct trace_seq *p, char *name)
return ret;
}

-const char *nvmet_trace_ctrl_name(struct trace_seq *p, struct nvmet_ctrl *ctrl)
+const char *nvmet_trace_ctrl_id(struct trace_seq *p, u16 ctrl_id)
{
const char *ret = trace_seq_buffer_ptr(p);

@@ -224,8 +224,8 @@ const char *nvmet_trace_ctrl_name(struct trace_seq *p, struct nvmet_ctrl *ctrl)
* If we can know the extra data of the connect command in this stage,
* we can update this print statement later.
*/
- if (ctrl)
- trace_seq_printf(p, "%d", ctrl->cntlid);
+ if (ctrl_id)
+ trace_seq_printf(p, "%d", ctrl_id);
else
trace_seq_printf(p, "_");
trace_seq_putc(p, 0);
diff --git a/drivers/nvme/target/trace.h b/drivers/nvme/target/trace.h
index 155334ddc13f..89020018a0e3 100644
--- a/drivers/nvme/target/trace.h
+++ b/drivers/nvme/target/trace.h
@@ -32,18 +32,24 @@ const char *nvmet_trace_parse_fabrics_cmd(struct trace_seq *p, u8 fctype,
nvmet_trace_parse_nvm_cmd(p, opcode, cdw10) : \
nvmet_trace_parse_admin_cmd(p, opcode, cdw10)))

-const char *nvmet_trace_ctrl_name(struct trace_seq *p, struct nvmet_ctrl *ctrl);
-#define __print_ctrl_name(ctrl) \
- nvmet_trace_ctrl_name(p, ctrl)
+const char *nvmet_trace_ctrl_id(struct trace_seq *p, u16 ctrl_id);
+#define __print_ctrl_id(ctrl_id) \
+ nvmet_trace_ctrl_id(p, ctrl_id)

const char *nvmet_trace_disk_name(struct trace_seq *p, char *name);
#define __print_disk_name(name) \
nvmet_trace_disk_name(p, name)

#ifndef TRACE_HEADER_MULTI_READ
-static inline struct nvmet_ctrl *nvmet_req_to_ctrl(struct nvmet_req *req)
+static inline u16 nvmet_req_to_ctrl_id(struct nvmet_req *req)
{
- return req->sq->ctrl;
+ /*
+ * The queue and controller pointers are not valid until an association
+ * has been established.
+ */
+ if (!req->sq || !req->sq->ctrl)
+ return 0;
+ return req->sq->ctrl->cntlid;
}

static inline void __assign_req_name(char *name, struct nvmet_req *req)
@@ -62,7 +68,7 @@ TRACE_EVENT(nvmet_req_init,
TP_ARGS(req, cmd),
TP_STRUCT__entry(
__field(struct nvme_command *, cmd)
- __field(struct nvmet_ctrl *, ctrl)
+ __field(u16, ctrl_id)
__array(char, disk, DISK_NAME_LEN)
__field(int, qid)
__field(u16, cid)
@@ -75,7 +81,7 @@ TRACE_EVENT(nvmet_req_init,
),
TP_fast_assign(
__entry->cmd = cmd;
- __entry->ctrl = nvmet_req_to_ctrl(req);
+ __entry->ctrl_id = nvmet_req_to_ctrl_id(req);
__assign_req_name(__entry->disk, req);
__entry->qid = req->sq->qid;
__entry->cid = cmd->common.command_id;
@@ -89,7 +95,7 @@ TRACE_EVENT(nvmet_req_init,
),
TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, "
"meta=%#llx, cmd=(%s, %s)",
- __print_ctrl_name(__entry->ctrl),
+ __print_ctrl_id(__entry->ctrl_id),
__print_disk_name(__entry->disk),
__entry->qid, __entry->cid, __entry->nsid,
__entry->flags, __entry->metadata,
@@ -103,7 +109,7 @@ TRACE_EVENT(nvmet_req_complete,
TP_PROTO(struct nvmet_req *req),
TP_ARGS(req),
TP_STRUCT__entry(
- __field(struct nvmet_ctrl *, ctrl)
+ __field(u16, ctrl_id)
__array(char, disk, DISK_NAME_LEN)
__field(int, qid)
__field(int, cid)
@@ -111,7 +117,7 @@ TRACE_EVENT(nvmet_req_complete,
__field(u16, status)
),
TP_fast_assign(
- __entry->ctrl = nvmet_req_to_ctrl(req);
+ __entry->ctrl_id = nvmet_req_to_ctrl_id(req);
__entry->qid = req->cq->qid;
__entry->cid = req->cqe->command_id;
__entry->result = le64_to_cpu(req->cqe->result.u64);
@@ -119,7 +125,7 @@ TRACE_EVENT(nvmet_req_complete,
__assign_req_name(__entry->disk, req);
),
TP_printk("nvmet%s: %sqid=%d, cmdid=%u, res=%#llx, status=%#x",
- __print_ctrl_name(__entry->ctrl),
+ __print_ctrl_id(__entry->ctrl_id),
__print_disk_name(__entry->disk),
__entry->qid, __entry->cid, __entry->result, __entry->status)

diff --git a/drivers/phy/xilinx/phy-zynqmp.c b/drivers/phy/xilinx/phy-zynqmp.c
index 9be9535ad7ab..ac9a9124a36d 100644
--- a/drivers/phy/xilinx/phy-zynqmp.c
+++ b/drivers/phy/xilinx/phy-zynqmp.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/slab.h>

#include <dt-bindings/phy/phy.h>
@@ -80,7 +81,8 @@

/* Reference clock selection parameters */
#define L0_Ln_REF_CLK_SEL(n) (0x2860 + (n) * 4)
-#define L0_REF_CLK_SEL_MASK 0x8f
+#define L0_REF_CLK_LCL_SEL BIT(7)
+#define L0_REF_CLK_SEL_MASK 0x9f

/* Calibration digital logic parameters */
#define L3_TM_CALIB_DIG19 0xec4c
@@ -165,6 +167,24 @@
/* Timeout values */
#define TIMEOUT_US 1000

+/* Lane 0/1/2/3 offset */
+#define DIG_8(n) ((0x4000 * (n)) + 0x1074)
+#define ILL13(n) ((0x4000 * (n)) + 0x1994)
+#define DIG_10(n) ((0x4000 * (n)) + 0x107c)
+#define RST_DLY(n) ((0x4000 * (n)) + 0x19a4)
+#define BYP_15(n) ((0x4000 * (n)) + 0x1038)
+#define BYP_12(n) ((0x4000 * (n)) + 0x102c)
+#define MISC3(n) ((0x4000 * (n)) + 0x19ac)
+#define EQ11(n) ((0x4000 * (n)) + 0x1978)
+
+static u32 save_reg_address[] = {
+ /* Lane 0/1/2/3 Register */
+ DIG_8(0), ILL13(0), DIG_10(0), RST_DLY(0), BYP_15(0), BYP_12(0), MISC3(0), EQ11(0),
+ DIG_8(1), ILL13(1), DIG_10(1), RST_DLY(1), BYP_15(1), BYP_12(1), MISC3(1), EQ11(1),
+ DIG_8(2), ILL13(2), DIG_10(2), RST_DLY(2), BYP_15(2), BYP_12(2), MISC3(2), EQ11(2),
+ DIG_8(3), ILL13(3), DIG_10(3), RST_DLY(3), BYP_15(3), BYP_12(3), MISC3(3), EQ11(3),
+};
+
struct xpsgtr_dev;

/**
@@ -213,6 +233,7 @@ struct xpsgtr_phy {
* @tx_term_fix: fix for GT issue
* @saved_icm_cfg0: stored value of ICM CFG0 register
* @saved_icm_cfg1: stored value of ICM CFG1 register
+ * @saved_regs: registers to be saved/restored during suspend/resume
*/
struct xpsgtr_dev {
struct device *dev;
@@ -225,6 +246,7 @@ struct xpsgtr_dev {
bool tx_term_fix;
unsigned int saved_icm_cfg0;
unsigned int saved_icm_cfg1;
+ u32 *saved_regs;
};

/*
@@ -298,6 +320,32 @@ static inline void xpsgtr_clr_set_phy(struct xpsgtr_phy *gtr_phy,
writel((readl(addr) & ~clr) | set, addr);
}

+/**
+ * xpsgtr_save_lane_regs - Saves registers on suspend
+ * @gtr_dev: pointer to phy controller context structure
+ */
+static void xpsgtr_save_lane_regs(struct xpsgtr_dev *gtr_dev)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(save_reg_address); i++)
+ gtr_dev->saved_regs[i] = xpsgtr_read(gtr_dev,
+ save_reg_address[i]);
+}
+
+/**
+ * xpsgtr_restore_lane_regs - Restores registers on resume
+ * @gtr_dev: pointer to phy controller context structure
+ */
+static void xpsgtr_restore_lane_regs(struct xpsgtr_dev *gtr_dev)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(save_reg_address); i++)
+ xpsgtr_write(gtr_dev, save_reg_address[i],
+ gtr_dev->saved_regs[i]);
+}
+
/*
* Hardware Configuration
*/
@@ -349,11 +397,12 @@ static void xpsgtr_configure_pll(struct xpsgtr_phy *gtr_phy)
PLL_FREQ_MASK, ssc->pll_ref_clk);

/* Enable lane clock sharing, if required */
- if (gtr_phy->refclk != gtr_phy->lane) {
- /* Lane3 Ref Clock Selection Register */
+ if (gtr_phy->refclk == gtr_phy->lane)
+ xpsgtr_clr_set(gtr_phy->dev, L0_Ln_REF_CLK_SEL(gtr_phy->lane),
+ L0_REF_CLK_SEL_MASK, L0_REF_CLK_LCL_SEL);
+ else
xpsgtr_clr_set(gtr_phy->dev, L0_Ln_REF_CLK_SEL(gtr_phy->lane),
L0_REF_CLK_SEL_MASK, 1 << gtr_phy->refclk);
- }

/* SSC step size [7:0] */
xpsgtr_clr_set_phy(gtr_phy, L0_PLL_SS_STEP_SIZE_0_LSB,
@@ -572,6 +621,10 @@ static int xpsgtr_phy_init(struct phy *phy)

mutex_lock(&gtr_dev->gtr_mutex);

+ /* Configure and enable the clock when peripheral phy_init call */
+ if (clk_prepare_enable(gtr_dev->clk[gtr_phy->refclk]))
+ goto out;
+
/* Skip initialization if not required. */
if (!xpsgtr_phy_init_required(gtr_phy))
goto out;
@@ -616,9 +669,13 @@ static int xpsgtr_phy_init(struct phy *phy)
static int xpsgtr_phy_exit(struct phy *phy)
{
struct xpsgtr_phy *gtr_phy = phy_get_drvdata(phy);
+ struct xpsgtr_dev *gtr_dev = gtr_phy->dev;

gtr_phy->skip_phy_init = false;

+ /* Ensure that disable clock only, which configure for lane */
+ clk_disable_unprepare(gtr_dev->clk[gtr_phy->refclk]);
+
return 0;
}

@@ -821,34 +878,27 @@ static struct phy *xpsgtr_xlate(struct device *dev,
* Power Management
*/

-static int __maybe_unused xpsgtr_suspend(struct device *dev)
+static int xpsgtr_runtime_suspend(struct device *dev)
{
struct xpsgtr_dev *gtr_dev = dev_get_drvdata(dev);
- unsigned int i;

/* Save the snapshot ICM_CFG registers. */
gtr_dev->saved_icm_cfg0 = xpsgtr_read(gtr_dev, ICM_CFG0);
gtr_dev->saved_icm_cfg1 = xpsgtr_read(gtr_dev, ICM_CFG1);

- for (i = 0; i < ARRAY_SIZE(gtr_dev->clk); i++)
- clk_disable_unprepare(gtr_dev->clk[i]);
+ xpsgtr_save_lane_regs(gtr_dev);

return 0;
}

-static int __maybe_unused xpsgtr_resume(struct device *dev)
+static int xpsgtr_runtime_resume(struct device *dev)
{
struct xpsgtr_dev *gtr_dev = dev_get_drvdata(dev);
unsigned int icm_cfg0, icm_cfg1;
unsigned int i;
bool skip_phy_init;
- int err;

- for (i = 0; i < ARRAY_SIZE(gtr_dev->clk); i++) {
- err = clk_prepare_enable(gtr_dev->clk[i]);
- if (err)
- goto err_clk_put;
- }
+ xpsgtr_restore_lane_regs(gtr_dev);

icm_cfg0 = xpsgtr_read(gtr_dev, ICM_CFG0);
icm_cfg1 = xpsgtr_read(gtr_dev, ICM_CFG1);
@@ -869,18 +919,10 @@ static int __maybe_unused xpsgtr_resume(struct device *dev)
gtr_dev->phys[i].skip_phy_init = skip_phy_init;

return 0;
-
-err_clk_put:
- while (i--)
- clk_disable_unprepare(gtr_dev->clk[i]);
-
- return err;
}

-static const struct dev_pm_ops xpsgtr_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(xpsgtr_suspend, xpsgtr_resume)
-};
-
+static DEFINE_RUNTIME_DEV_PM_OPS(xpsgtr_pm_ops, xpsgtr_runtime_suspend,
+ xpsgtr_runtime_resume, NULL);
/*
* Probe & Platform Driver
*/
@@ -888,7 +930,6 @@ static const struct dev_pm_ops xpsgtr_pm_ops = {
static int xpsgtr_get_ref_clocks(struct xpsgtr_dev *gtr_dev)
{
unsigned int refclk;
- int ret;

for (refclk = 0; refclk < ARRAY_SIZE(gtr_dev->refclk_sscs); ++refclk) {
unsigned long rate;
@@ -899,19 +940,14 @@ static int xpsgtr_get_ref_clocks(struct xpsgtr_dev *gtr_dev)
snprintf(name, sizeof(name), "ref%u", refclk);
clk = devm_clk_get_optional(gtr_dev->dev, name);
if (IS_ERR(clk)) {
- ret = dev_err_probe(gtr_dev->dev, PTR_ERR(clk),
- "Failed to get reference clock %u\n",
- refclk);
- goto err_clk_put;
+ return dev_err_probe(gtr_dev->dev, PTR_ERR(clk),
+ "Failed to get ref clock %u\n",
+ refclk);
}

if (!clk)
continue;

- ret = clk_prepare_enable(clk);
- if (ret)
- goto err_clk_put;
-
gtr_dev->clk[refclk] = clk;

/*
@@ -931,18 +967,11 @@ static int xpsgtr_get_ref_clocks(struct xpsgtr_dev *gtr_dev)
dev_err(gtr_dev->dev,
"Invalid rate %lu for reference clock %u\n",
rate, refclk);
- ret = -EINVAL;
- goto err_clk_put;
+ return -EINVAL;
}
}

return 0;
-
-err_clk_put:
- while (refclk--)
- clk_disable_unprepare(gtr_dev->clk[refclk]);
-
- return ret;
}

static int xpsgtr_probe(struct platform_device *pdev)
@@ -951,7 +980,6 @@ static int xpsgtr_probe(struct platform_device *pdev)
struct xpsgtr_dev *gtr_dev;
struct phy_provider *provider;
unsigned int port;
- unsigned int i;
int ret;

gtr_dev = devm_kzalloc(&pdev->dev, sizeof(*gtr_dev), GFP_KERNEL);
@@ -991,8 +1019,7 @@ static int xpsgtr_probe(struct platform_device *pdev)
phy = devm_phy_create(&pdev->dev, np, &xpsgtr_phyops);
if (IS_ERR(phy)) {
dev_err(&pdev->dev, "failed to create PHY\n");
- ret = PTR_ERR(phy);
- goto err_clk_put;
+ return PTR_ERR(phy);
}

gtr_phy->phy = phy;
@@ -1003,16 +1030,36 @@ static int xpsgtr_probe(struct platform_device *pdev)
provider = devm_of_phy_provider_register(&pdev->dev, xpsgtr_xlate);
if (IS_ERR(provider)) {
dev_err(&pdev->dev, "registering provider failed\n");
- ret = PTR_ERR(provider);
- goto err_clk_put;
+ return PTR_ERR(provider);
}
+
+ pm_runtime_set_active(gtr_dev->dev);
+ pm_runtime_enable(gtr_dev->dev);
+
+ ret = pm_runtime_resume_and_get(gtr_dev->dev);
+ if (ret < 0) {
+ pm_runtime_disable(gtr_dev->dev);
+ return ret;
+ }
+
+ gtr_dev->saved_regs = devm_kmalloc(gtr_dev->dev,
+ sizeof(save_reg_address),
+ GFP_KERNEL);
+ if (!gtr_dev->saved_regs)
+ return -ENOMEM;
+
return 0;
+}

-err_clk_put:
- for (i = 0; i < ARRAY_SIZE(gtr_dev->clk); i++)
- clk_disable_unprepare(gtr_dev->clk[i]);
+static int xpsgtr_remove(struct platform_device *pdev)
+{
+ struct xpsgtr_dev *gtr_dev = platform_get_drvdata(pdev);

- return ret;
+ pm_runtime_disable(gtr_dev->dev);
+ pm_runtime_put_noidle(gtr_dev->dev);
+ pm_runtime_set_suspended(gtr_dev->dev);
+
+ return 0;
}

static const struct of_device_id xpsgtr_of_match[] = {
@@ -1024,10 +1071,11 @@ MODULE_DEVICE_TABLE(of, xpsgtr_of_match);

static struct platform_driver xpsgtr_driver = {
.probe = xpsgtr_probe,
+ .remove = xpsgtr_remove,
.driver = {
.name = "xilinx-psgtr",
.of_match_table = xpsgtr_of_match,
- .pm = &xpsgtr_pm_ops,
+ .pm = pm_ptr(&xpsgtr_pm_ops),
},
};

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 790467dcde4f..f473585d93d2 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -3218,7 +3218,7 @@ static struct rockchip_pin_bank rk3328_pin_banks[] = {
PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
- 0,
+ IOMUX_WIDTH_2BIT,
IOMUX_WIDTH_3BIT,
0),
PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index cd23479f352a..d32d5c5e99bc 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -350,6 +350,8 @@ static int pcs_get_function(struct pinctrl_dev *pctldev, unsigned pin,
return -ENOTSUPP;
fselector = setting->func;
function = pinmux_generic_get_function(pctldev, fselector);
+ if (!function)
+ return -EINVAL;
*func = function->data;
if (!(*func)) {
dev_err(pcs->dev, "%s could not find function%i\n",
diff --git a/drivers/platform/surface/aggregator/controller.c b/drivers/platform/surface/aggregator/controller.c
index 5542b768890c..cc78687d6874 100644
--- a/drivers/platform/surface/aggregator/controller.c
+++ b/drivers/platform/surface/aggregator/controller.c
@@ -1354,7 +1354,8 @@ void ssam_controller_destroy(struct ssam_controller *ctrl)
if (ctrl->state == SSAM_CONTROLLER_UNINITIALIZED)
return;

- WARN_ON(ctrl->state != SSAM_CONTROLLER_STOPPED);
+ WARN_ON(ctrl->state != SSAM_CONTROLLER_STOPPED &&
+ ctrl->state != SSAM_CONTROLLER_INITIALIZED);

/*
* Note: New events could still have been received after the previous
diff --git a/drivers/platform/x86/lg-laptop.c b/drivers/platform/x86/lg-laptop.c
index 5f9fbea8fc3c..b374b0c7c62f 100644
--- a/drivers/platform/x86/lg-laptop.c
+++ b/drivers/platform/x86/lg-laptop.c
@@ -665,7 +665,7 @@ static int acpi_add(struct acpi_device *device)
default:
year = 2019;
}
- pr_info("product: %s year: %d\n", product, year);
+ pr_info("product: %s year: %d\n", product ?: "unknown", year);

if (year >= 2019)
battery_limit_use_wmbb = 1;
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index fc3347427111..f5e7929d1dc2 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1622,9 +1622,15 @@ static int dasd_ese_needs_format(struct dasd_block *block, struct irb *irb)
if (!sense)
return 0;

- return !!(sense[1] & SNS1_NO_REC_FOUND) ||
- !!(sense[1] & SNS1_FILE_PROTECTED) ||
- scsw_cstat(&irb->scsw) == SCHN_STAT_INCORR_LEN;
+ if (sense[1] & SNS1_NO_REC_FOUND)
+ return 1;
+
+ if ((sense[1] & SNS1_INV_TRACK_FORMAT) &&
+ scsw_is_tm(&irb->scsw) &&
+ !(sense[2] & SNS2_ENV_DATA_PRESENT))
+ return 1;
+
+ return 0;
}

static int dasd_ese_oos_cond(u8 *sense)
@@ -1645,7 +1651,7 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
struct dasd_device *device;
unsigned long now;
int nrf_suppressed = 0;
- int fp_suppressed = 0;
+ int it_suppressed = 0;
struct request *req;
u8 *sense = NULL;
int expires;
@@ -1700,8 +1706,9 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
*/
sense = dasd_get_sense(irb);
if (sense) {
- fp_suppressed = (sense[1] & SNS1_FILE_PROTECTED) &&
- test_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
+ it_suppressed = (sense[1] & SNS1_INV_TRACK_FORMAT) &&
+ !(sense[2] & SNS2_ENV_DATA_PRESENT) &&
+ test_bit(DASD_CQR_SUPPRESS_IT, &cqr->flags);
nrf_suppressed = (sense[1] & SNS1_NO_REC_FOUND) &&
test_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);

@@ -1716,7 +1723,7 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
return;
}
}
- if (!(fp_suppressed || nrf_suppressed))
+ if (!(it_suppressed || nrf_suppressed))
device->discipline->dump_sense_dbf(device, irb, "int");

if (device->features & DASD_FEATURE_ERPLOG)
@@ -2474,14 +2481,17 @@ static int _dasd_sleep_on_queue(struct list_head *ccw_queue, int interruptible)
rc = 0;
list_for_each_entry_safe(cqr, n, ccw_queue, blocklist) {
/*
- * In some cases the 'File Protected' or 'Incorrect Length'
- * error might be expected and error recovery would be
- * unnecessary in these cases. Check if the according suppress
- * bit is set.
+ * In some cases certain errors might be expected and
+ * error recovery would be unnecessary in these cases.
+ * Check if the according suppress bit is set.
*/
sense = dasd_get_sense(&cqr->irb);
- if (sense && sense[1] & SNS1_FILE_PROTECTED &&
- test_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags))
+ if (sense && (sense[1] & SNS1_INV_TRACK_FORMAT) &&
+ !(sense[2] & SNS2_ENV_DATA_PRESENT) &&
+ test_bit(DASD_CQR_SUPPRESS_IT, &cqr->flags))
+ continue;
+ if (sense && (sense[1] & SNS1_NO_REC_FOUND) &&
+ test_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags))
continue;
if (scsw_cstat(&cqr->irb.scsw) == 0x40 &&
test_bit(DASD_CQR_SUPPRESS_IL, &cqr->flags))
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index c2d4ea74e0d0..845f088ce97b 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -1401,14 +1401,8 @@ dasd_3990_erp_file_prot(struct dasd_ccw_req * erp)

struct dasd_device *device = erp->startdev;

- /*
- * In some cases the 'File Protected' error might be expected and
- * log messages shouldn't be written then.
- * Check if the according suppress bit is set.
- */
- if (!test_bit(DASD_CQR_SUPPRESS_FP, &erp->flags))
- dev_err(&device->cdev->dev,
- "Accessing the DASD failed because of a hardware error\n");
+ dev_err(&device->cdev->dev,
+ "Accessing the DASD failed because of a hardware error\n");

return dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);

diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 59b11950fb60..f643f455c3f3 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -2301,6 +2301,7 @@ dasd_eckd_analysis_ccw(struct dasd_device *device)
cqr->status = DASD_CQR_FILLED;
/* Set flags to suppress output for expected errors */
set_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);
+ set_bit(DASD_CQR_SUPPRESS_IT, &cqr->flags);

return cqr;
}
@@ -2582,7 +2583,6 @@ dasd_eckd_build_check_tcw(struct dasd_device *base, struct format_data_t *fdata,
cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
/* Set flags to suppress output for expected errors */
- set_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
set_bit(DASD_CQR_SUPPRESS_IL, &cqr->flags);

return cqr;
@@ -4131,8 +4131,6 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(

/* Set flags to suppress output for expected errors */
if (dasd_eckd_is_ese(basedev)) {
- set_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
- set_bit(DASD_CQR_SUPPRESS_IL, &cqr->flags);
set_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);
}

@@ -4634,9 +4632,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(

/* Set flags to suppress output for expected errors */
if (dasd_eckd_is_ese(basedev)) {
- set_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
- set_bit(DASD_CQR_SUPPRESS_IL, &cqr->flags);
set_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);
+ set_bit(DASD_CQR_SUPPRESS_IT, &cqr->flags);
}

return cqr;
@@ -5806,36 +5803,32 @@ static void dasd_eckd_dump_sense(struct dasd_device *device,
{
u8 *sense = dasd_get_sense(irb);

- if (scsw_is_tm(&irb->scsw)) {
- /*
- * In some cases the 'File Protected' or 'Incorrect Length'
- * error might be expected and log messages shouldn't be written
- * then. Check if the according suppress bit is set.
- */
- if (sense && (sense[1] & SNS1_FILE_PROTECTED) &&
- test_bit(DASD_CQR_SUPPRESS_FP, &req->flags))
- return;
- if (scsw_cstat(&irb->scsw) == 0x40 &&
- test_bit(DASD_CQR_SUPPRESS_IL, &req->flags))
- return;
+ /*
+ * In some cases certain errors might be expected and
+ * log messages shouldn't be written then.
+ * Check if the according suppress bit is set.
+ */
+ if (sense && (sense[1] & SNS1_INV_TRACK_FORMAT) &&
+ !(sense[2] & SNS2_ENV_DATA_PRESENT) &&
+ test_bit(DASD_CQR_SUPPRESS_IT, &req->flags))
+ return;

- dasd_eckd_dump_sense_tcw(device, req, irb);
- } else {
- /*
- * In some cases the 'Command Reject' or 'No Record Found'
- * error might be expected and log messages shouldn't be
- * written then. Check if the according suppress bit is set.
- */
- if (sense && sense[0] & SNS0_CMD_REJECT &&
- test_bit(DASD_CQR_SUPPRESS_CR, &req->flags))
- return;
+ if (sense && sense[0] & SNS0_CMD_REJECT &&
+ test_bit(DASD_CQR_SUPPRESS_CR, &req->flags))
+ return;

- if (sense && sense[1] & SNS1_NO_REC_FOUND &&
- test_bit(DASD_CQR_SUPPRESS_NRF, &req->flags))
- return;
+ if (sense && sense[1] & SNS1_NO_REC_FOUND &&
+ test_bit(DASD_CQR_SUPPRESS_NRF, &req->flags))
+ return;

+ if (scsw_cstat(&irb->scsw) == 0x40 &&
+ test_bit(DASD_CQR_SUPPRESS_IL, &req->flags))
+ return;
+
+ if (scsw_is_tm(&irb->scsw))
+ dasd_eckd_dump_sense_tcw(device, req, irb);
+ else
dasd_eckd_dump_sense_ccw(device, req, irb);
- }
}

static int dasd_eckd_reload_device(struct dasd_device *device)
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 744e14a81cc4..c71e44d49b1d 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -226,7 +226,7 @@ struct dasd_ccw_req {
* The following flags are used to suppress output of certain errors.
*/
#define DASD_CQR_SUPPRESS_NRF 4 /* Suppress 'No Record Found' error */
-#define DASD_CQR_SUPPRESS_FP 5 /* Suppress 'File Protected' error*/
+#define DASD_CQR_SUPPRESS_IT 5 /* Suppress 'Invalid Track' error*/
#define DASD_CQR_SUPPRESS_IL 6 /* Suppress 'Incorrect Length' error */
#define DASD_CQR_SUPPRESS_CR 7 /* Suppress 'Command Reject' error */

diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c
index 45f9c0736be4..e5f28370a903 100644
--- a/drivers/s390/cio/idset.c
+++ b/drivers/s390/cio/idset.c
@@ -16,20 +16,21 @@ struct idset {
unsigned long bitmap[];
};

-static inline unsigned long bitmap_size(int num_ssid, int num_id)
+static inline unsigned long idset_bitmap_size(int num_ssid, int num_id)
{
- return BITS_TO_LONGS(num_ssid * num_id) * sizeof(unsigned long);
+ return bitmap_size(size_mul(num_ssid, num_id));
}

static struct idset *idset_new(int num_ssid, int num_id)
{
struct idset *set;

- set = vmalloc(sizeof(struct idset) + bitmap_size(num_ssid, num_id));
+ set = vmalloc(sizeof(struct idset) +
+ idset_bitmap_size(num_ssid, num_id));
if (set) {
set->num_ssid = num_ssid;
set->num_id = num_id;
- memset(set->bitmap, 0, bitmap_size(num_ssid, num_id));
+ memset(set->bitmap, 0, idset_bitmap_size(num_ssid, num_id));
}
return set;
}
@@ -41,7 +42,8 @@ void idset_free(struct idset *set)

void idset_fill(struct idset *set)
{
- memset(set->bitmap, 0xff, bitmap_size(set->num_ssid, set->num_id));
+ memset(set->bitmap, 0xff,
+ idset_bitmap_size(set->num_ssid, set->num_id));
}

static inline void idset_add(struct idset *set, int ssid, int id)
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 355b16f0b145..34e45c87cae0 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -642,6 +642,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)

if (aac_comm_init(dev)<0){
kfree(dev->queues);
+ dev->queues = NULL;
return NULL;
}
/*
@@ -649,6 +650,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
*/
if (aac_fib_setup(dev) < 0) {
kfree(dev->queues);
+ dev->queues = NULL;
return NULL;
}

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 30bc72324f06..68b015bb6d15 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -7490,7 +7490,7 @@ lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
struct lpfc_sglq *sglq_entry = NULL;
struct lpfc_sglq *sglq_entry_next = NULL;
struct lpfc_sglq *sglq_entry_first = NULL;
- int status, total_cnt;
+ int status = 0, total_cnt;
int post_cnt = 0, num_posted = 0, block_cnt = 0;
int last_xritag = NO_XRI;
LIST_HEAD(prep_sgl_list);
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index bd72c38d7bfc..5c43d0ec95a7 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -677,10 +677,10 @@ spi_dv_device_echo_buffer(struct scsi_device *sdev, u8 *buffer,
for (r = 0; r < retries; r++) {
result = spi_execute(sdev, spi_write_buffer, DMA_TO_DEVICE,
buffer, len, &sshdr);
- if(result || !scsi_device_online(sdev)) {
+ if (result || !scsi_device_online(sdev)) {

scsi_device_set_state(sdev, SDEV_QUIESCE);
- if (scsi_sense_valid(&sshdr)
+ if (result > 0 && scsi_sense_valid(&sshdr)
&& sshdr.sense_key == ILLEGAL_REQUEST
/* INVALID FIELD IN CDB */
&& sshdr.asc == 0x24 && sshdr.ascq == 0x00)
diff --git a/drivers/soc/qcom/cmd-db.c b/drivers/soc/qcom/cmd-db.c
index b4803f2fde5e..6cb5e3956fc5 100644
--- a/drivers/soc/qcom/cmd-db.c
+++ b/drivers/soc/qcom/cmd-db.c
@@ -350,7 +350,7 @@ static int cmd_db_dev_probe(struct platform_device *pdev)
return -EINVAL;
}

- cmd_db_header = memremap(rmem->base, rmem->size, MEMREMAP_WB);
+ cmd_db_header = memremap(rmem->base, rmem->size, MEMREMAP_WC);
if (!cmd_db_header) {
ret = -ENOMEM;
cmd_db_header = NULL;
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index 8f9f4ee7860c..558725e50121 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -1445,18 +1445,18 @@ struct sdw_dpn_prop *sdw_get_slave_dpn_prop(struct sdw_slave *slave,
unsigned int port_num)
{
struct sdw_dpn_prop *dpn_prop;
- u8 num_ports;
+ unsigned long mask;
int i;

if (direction == SDW_DATA_DIR_TX) {
- num_ports = hweight32(slave->prop.source_ports);
+ mask = slave->prop.source_ports;
dpn_prop = slave->prop.src_dpn_prop;
} else {
- num_ports = hweight32(slave->prop.sink_ports);
+ mask = slave->prop.sink_ports;
dpn_prop = slave->prop.sink_dpn_prop;
}

- for (i = 0; i < num_ports; i++) {
+ for_each_set_bit(i, &mask, 32) {
if (dpn_prop[i].num == port_num)
return &dpn_prop[i];
}
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 8a93c83cb6f8..d52e91258e98 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -837,7 +837,7 @@ static u32 clkfactor_f6_resolve(u32 v)
case SSB_CHIPCO_CLK_F6_7:
return 7;
}
- return 0;
+ return 1;
}

/* Calculate the speed the backplane would run at a given set of clockcontrol values */
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index a19cfb2998c9..f19bb5c796cf 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -658,9 +658,6 @@ static int ad2s1210_probe(struct spi_device *spi)
if (!indio_dev)
return -ENOMEM;
st = iio_priv(indio_dev);
- ret = ad2s1210_setup_gpios(st);
- if (ret < 0)
- return ret;

spi_set_drvdata(spi, indio_dev);

@@ -671,6 +668,10 @@ static int ad2s1210_probe(struct spi_device *spi)
st->resolution = 12;
st->fexcit = AD2S1210_DEF_EXCIT;

+ ret = ad2s1210_setup_gpios(st);
+ if (ret < 0)
+ return ret;
+
indio_dev->info = &ad2s1210_info;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = ad2s1210_channels;
diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c
index 98d759e7cc95..a4f3a7a79422 100644
--- a/drivers/staging/ks7010/ks7010_sdio.c
+++ b/drivers/staging/ks7010/ks7010_sdio.c
@@ -395,9 +395,9 @@ int ks_wlan_hw_tx(struct ks_wlan_private *priv, void *p, unsigned long size,
priv->hostt.buff[priv->hostt.qtail] = le16_to_cpu(hdr->event);
priv->hostt.qtail = (priv->hostt.qtail + 1) % SME_EVENT_BUFF_SIZE;

- spin_lock(&priv->tx_dev.tx_dev_lock);
+ spin_lock_bh(&priv->tx_dev.tx_dev_lock);
result = enqueue_txdev(priv, p, size, complete_handler, skb);
- spin_unlock(&priv->tx_dev.tx_dev_lock);
+ spin_unlock_bh(&priv->tx_dev.tx_dev_lock);

if (txq_has_space(priv))
queue_delayed_work(priv->wq, &priv->rw_dwork, 0);
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index fdfed54e62f3..b9bdbc8b7b18 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -2877,6 +2877,7 @@ void tb_switch_remove(struct tb_switch *sw)
tb_switch_remove(port->remote->sw);
port->remote = NULL;
} else if (port->xdomain) {
+ port->xdomain->is_unplugged = true;
tb_xdomain_remove(port->xdomain);
port->xdomain = NULL;
}
diff --git a/drivers/usb/cdns3/cdnsp-gadget.h b/drivers/usb/cdns3/cdnsp-gadget.h
index f740fa6089d8..a61aef0dc273 100644
--- a/drivers/usb/cdns3/cdnsp-gadget.h
+++ b/drivers/usb/cdns3/cdnsp-gadget.h
@@ -811,6 +811,7 @@ struct cdnsp_stream_info {
* generate Missed Service Error Event.
* Set skip flag when receive a Missed Service Error Event and
* process the missed tds on the endpoint ring.
+ * @wa1_nop_trb: hold pointer to NOP trb.
*/
struct cdnsp_ep {
struct usb_ep endpoint;
@@ -838,6 +839,8 @@ struct cdnsp_ep {
#define EP_UNCONFIGURED BIT(7)

bool skip;
+ union cdnsp_trb *wa1_nop_trb;
+
};

/**
diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c
index 8a2cc0405a4a..04e8db773a82 100644
--- a/drivers/usb/cdns3/cdnsp-ring.c
+++ b/drivers/usb/cdns3/cdnsp-ring.c
@@ -402,7 +402,7 @@ static u64 cdnsp_get_hw_deq(struct cdnsp_device *pdev,
struct cdnsp_stream_ctx *st_ctx;
struct cdnsp_ep *pep;

- pep = &pdev->eps[stream_id];
+ pep = &pdev->eps[ep_index];

if (pep->ep_state & EP_HAS_STREAMS) {
st_ctx = &pep->stream_info.stream_ctx_array[stream_id];
@@ -1902,6 +1902,23 @@ int cdnsp_queue_bulk_tx(struct cdnsp_device *pdev, struct cdnsp_request *preq)
if (ret)
return ret;

+ /*
+ * workaround 1: STOP EP command on LINK TRB with TC bit set to 1
+ * causes that internal cycle bit can have incorrect state after
+ * command complete. In consequence empty transfer ring can be
+ * incorrectly detected when EP is resumed.
+ * NOP TRB before LINK TRB avoid such scenario. STOP EP command is
+ * then on NOP TRB and internal cycle bit is not changed and have
+ * correct value.
+ */
+ if (pep->wa1_nop_trb) {
+ field = le32_to_cpu(pep->wa1_nop_trb->trans_event.flags);
+ field ^= TRB_CYCLE;
+
+ pep->wa1_nop_trb->trans_event.flags = cpu_to_le32(field);
+ pep->wa1_nop_trb = NULL;
+ }
+
/*
* Don't give the first TRB to the hardware (by toggling the cycle bit)
* until we've finished creating all the other TRBs. The ring's cycle
@@ -1997,6 +2014,17 @@ int cdnsp_queue_bulk_tx(struct cdnsp_device *pdev, struct cdnsp_request *preq)
send_addr = addr;
}

+ if (cdnsp_trb_is_link(ring->enqueue + 1)) {
+ field = TRB_TYPE(TRB_TR_NOOP) | TRB_IOC;
+ if (!ring->cycle_state)
+ field |= TRB_CYCLE;
+
+ pep->wa1_nop_trb = ring->enqueue;
+
+ cdnsp_queue_trb(pdev, ring, 0, 0x0, 0x0,
+ TRB_INTR_TARGET(0), field);
+ }
+
cdnsp_check_trb_math(preq, enqd_len);
ret = cdnsp_giveback_first_trb(pdev, pep, preq->request.stream_id,
start_cycle, start_trb);
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index f21fd809e44f..2957a17b185e 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1741,6 +1741,9 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */
.driver_info = SINGLE_RX_URB,
},
+ { USB_DEVICE(0x1901, 0x0006), /* GE Healthcare Patient Monitor UI Controller */
+ .driver_info = DISABLE_ECHO, /* DISABLE ECHO in termios flag */
+ },
{ USB_DEVICE(0x1965, 0x0018), /* Uniden UBC125XLT */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index c9501907f7eb..585ef71b9318 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -670,6 +670,7 @@ static int add_power_attributes(struct device *dev)

static void remove_power_attributes(struct device *dev)
{
+ sysfs_unmerge_group(&dev->kobj, &usb3_hardware_lpm_attr_group);
sysfs_unmerge_group(&dev->kobj, &usb2_hardware_lpm_attr_group);
sysfs_unmerge_group(&dev->kobj, &power_attr_group);
}
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 1dc417da1a0f..de9b638c207a 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -430,6 +430,13 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc)
static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length)
{
struct dwc3_event_buffer *evt;
+ unsigned int hw_mode;
+
+ hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
+ if (hw_mode == DWC3_GHWPARAMS0_MODE_HOST) {
+ dwc->ev_buf = NULL;
+ return 0;
+ }

evt = dwc3_alloc_one_event_buffer(dwc, length);
if (IS_ERR(evt)) {
@@ -451,6 +458,9 @@ int dwc3_event_buffers_setup(struct dwc3 *dwc)
{
struct dwc3_event_buffer *evt;

+ if (!dwc->ev_buf)
+ return 0;
+
evt = dwc->ev_buf;
evt->lpos = 0;
dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(0),
@@ -467,6 +477,17 @@ int dwc3_event_buffers_setup(struct dwc3 *dwc)
void dwc3_event_buffers_cleanup(struct dwc3 *dwc)
{
struct dwc3_event_buffer *evt;
+ u32 reg;
+
+ if (!dwc->ev_buf)
+ return;
+ /*
+ * Exynos platforms may not be able to access event buffer if the
+ * controller failed to halt on dwc3_core_exit().
+ */
+ reg = dwc3_readl(dwc->regs, DWC3_DSTS);
+ if (!(reg & DWC3_DSTS_DEVCTRLHLT))
+ return;

evt = dwc->ev_buf;

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index efaf0db595f4..6b59bbb22da4 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -522,11 +522,13 @@ static int dwc3_omap_probe(struct platform_device *pdev)
if (ret) {
dev_err(dev, "failed to request IRQ #%d --> %d\n",
omap->irq, ret);
- goto err1;
+ goto err2;
}
dwc3_omap_enable_irqs(omap);
return 0;

+err2:
+ of_platform_depopulate(dev);
err1:
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
index 166b5bde45cb..14c86fe00648 100644
--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -219,10 +219,8 @@ static int st_dwc3_probe(struct platform_device *pdev)
dwc3_data->regmap = regmap;

res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "syscfg-reg");
- if (!res) {
- ret = -ENXIO;
- goto undo_platform_dev_alloc;
- }
+ if (!res)
+ return -ENXIO;

dwc3_data->syscfg_reg_off = res->start;

@@ -233,8 +231,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
devm_reset_control_get_exclusive(dev, "powerdown");
if (IS_ERR(dwc3_data->rstc_pwrdn)) {
dev_err(&pdev->dev, "could not get power controller\n");
- ret = PTR_ERR(dwc3_data->rstc_pwrdn);
- goto undo_platform_dev_alloc;
+ return PTR_ERR(dwc3_data->rstc_pwrdn);
}

/* Manage PowerDown */
@@ -269,7 +266,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
if (!child_pdev) {
dev_err(dev, "failed to find dwc3 core device\n");
ret = -ENODEV;
- goto err_node_put;
+ goto depopulate;
}

dwc3_data->dr_mode = usb_get_dr_mode(&child_pdev->dev);
@@ -285,6 +282,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
ret = st_dwc3_drd_init(dwc3_data);
if (ret) {
dev_err(dev, "drd initialisation failed\n");
+ of_platform_depopulate(dev);
goto undo_softreset;
}

@@ -294,14 +292,14 @@ static int st_dwc3_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, dwc3_data);
return 0;

+depopulate:
+ of_platform_depopulate(dev);
err_node_put:
of_node_put(child);
undo_softreset:
reset_control_assert(dwc3_data->rstc_rst);
undo_powerdown:
reset_control_assert(dwc3_data->rstc_pwrdn);
-undo_platform_dev_alloc:
- platform_device_put(pdev);
return ret;
}

diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index 29fcb9b461d7..abe7c9a6ce23 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -2485,7 +2485,7 @@ static int fsl_udc_probe(struct platform_device *pdev)
/* setup the udc->eps[] for non-control endpoints and link
* to gadget.ep_list */
for (i = 1; i < (int)(udc_controller->max_ep / 2); i++) {
- char name[14];
+ char name[16];

sprintf(name, "ep%dout", i);
struct_ep_setup(udc_controller, i * 2, name, 1);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2539d97b90c3..fa1efed0a5fc 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -2954,7 +2954,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
xhci->num_active_eps);
return -ENOMEM;
}
- if ((xhci->quirks & XHCI_SW_BW_CHECKING) &&
+ if ((xhci->quirks & XHCI_SW_BW_CHECKING) && !ctx_change &&
xhci_reserve_bandwidth(xhci, virt_dev, command->in_ctx)) {
if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK))
xhci_free_host_resources(xhci, ctrl_ctx);
@@ -4294,8 +4294,10 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
mutex_unlock(&xhci->mutex);
ret = xhci_disable_slot(xhci, udev->slot_id);
xhci_free_virt_device(xhci, udev->slot_id);
- if (!ret)
- xhci_alloc_dev(hcd, udev);
+ if (!ret) {
+ if (xhci_alloc_dev(hcd, udev) == 1)
+ xhci_setup_addressable_virt_dev(xhci, udev);
+ }
kfree(command->completion);
kfree(command);
return -EPROTO;
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index cb0eb7fd2542..d34458f11d82 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -619,6 +619,8 @@ static void option_instat_callback(struct urb *urb);

/* MeiG Smart Technology products */
#define MEIGSMART_VENDOR_ID 0x2dee
+/* MeiG Smart SRM825L based on Qualcomm 315 */
+#define MEIGSMART_PRODUCT_SRM825L 0x4d22
/* MeiG Smart SLM320 based on UNISOC UIS8910 */
#define MEIGSMART_PRODUCT_SLM320 0x4d41

@@ -2366,6 +2368,9 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, TOZED_PRODUCT_LT70C, 0xff, 0, 0) },
{ USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, LUAT_PRODUCT_AIR720U, 0xff, 0, 0) },
{ USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SLM320, 0xff, 0, 0) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SRM825L, 0xff, 0xff, 0x30) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SRM825L, 0xff, 0xff, 0x40) },
+ { USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SRM825L, 0xff, 0xff, 0x60) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
diff --git a/fs/afs/file.c b/fs/afs/file.c
index b165377179c3..6774e1fcf7c5 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -512,13 +512,17 @@ static void afs_add_open_mmap(struct afs_vnode *vnode)

static void afs_drop_open_mmap(struct afs_vnode *vnode)
{
- if (!atomic_dec_and_test(&vnode->cb_nr_mmap))
+ if (atomic_add_unless(&vnode->cb_nr_mmap, -1, 1))
return;

down_write(&vnode->volume->cell->fs_open_mmaps_lock);

- if (atomic_read(&vnode->cb_nr_mmap) == 0)
+ read_seqlock_excl(&vnode->cb_lock);
+ // the only place where ->cb_nr_mmap may hit 0
+ // see __afs_break_callback() for the other side...
+ if (atomic_dec_and_test(&vnode->cb_nr_mmap))
list_del_init(&vnode->cb_mmap_link);
+ read_sequnlock_excl(&vnode->cb_lock);

up_write(&vnode->volume->cell->fs_open_mmaps_lock);
flush_work(&vnode->cb_work);
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index f51f6e4d1a32..a7084a720b28 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -320,7 +320,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
else
executable_stack = EXSTACK_DEFAULT;

- if (stack_size == 0) {
+ if (stack_size == 0 && interp_params.flags & ELF_FDPIC_FLAG_PRESENT) {
stack_size = interp_params.stack_size;
if (interp_params.flags & ELF_FDPIC_FLAG_EXEC_STACK)
executable_stack = EXSTACK_ENABLE_X;
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index bb202ad369d5..740dac1012ae 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -60,12 +60,11 @@ typedef struct {
char *name;
struct dentry *dentry;
struct file *interp_file;
+ refcount_t users; /* sync removal with load_misc_binary() */
} Node;

static DEFINE_RWLOCK(entries_lock);
static struct file_system_type bm_fs_type;
-static struct vfsmount *bm_mnt;
-static int entry_count;

/*
* Max length of the register string. Determined by:
@@ -82,19 +81,23 @@ static int entry_count;
*/
#define MAX_REGISTER_LENGTH 1920

-/*
- * Check if we support the binfmt
- * if we do, return the node, else NULL
- * locking is done in load_misc_binary
+/**
+ * search_binfmt_handler - search for a binary handler for @bprm
+ * @misc: handle to binfmt_misc instance
+ * @bprm: binary for which we are looking for a handler
+ *
+ * Search for a binary type handler for @bprm in the list of registered binary
+ * type handlers.
+ *
+ * Return: binary type list entry on success, NULL on failure
*/
-static Node *check_file(struct linux_binprm *bprm)
+static Node *search_binfmt_handler(struct linux_binprm *bprm)
{
char *p = strrchr(bprm->interp, '.');
- struct list_head *l;
+ Node *e;

/* Walk all the registered handlers. */
- list_for_each(l, &entries) {
- Node *e = list_entry(l, Node, list);
+ list_for_each_entry(e, &entries, list) {
char *s;
int j;

@@ -123,9 +126,49 @@ static Node *check_file(struct linux_binprm *bprm)
if (j == e->size)
return e;
}
+
return NULL;
}

+/**
+ * get_binfmt_handler - try to find a binary type handler
+ * @misc: handle to binfmt_misc instance
+ * @bprm: binary for which we are looking for a handler
+ *
+ * Try to find a binfmt handler for the binary type. If one is found take a
+ * reference to protect against removal via bm_{entry,status}_write().
+ *
+ * Return: binary type list entry on success, NULL on failure
+ */
+static Node *get_binfmt_handler(struct linux_binprm *bprm)
+{
+ Node *e;
+
+ read_lock(&entries_lock);
+ e = search_binfmt_handler(bprm);
+ if (e)
+ refcount_inc(&e->users);
+ read_unlock(&entries_lock);
+ return e;
+}
+
+/**
+ * put_binfmt_handler - put binary handler node
+ * @e: node to put
+ *
+ * Free node syncing with load_misc_binary() and defer final free to
+ * load_misc_binary() in case it is using the binary type handler we were
+ * requested to remove.
+ */
+static void put_binfmt_handler(Node *e)
+{
+ if (refcount_dec_and_test(&e->users)) {
+ if (e->flags & MISC_FMT_OPEN_FILE)
+ filp_close(e->interp_file, NULL);
+ kfree(e);
+ }
+}
+
/*
* the loader itself
*/
@@ -139,12 +182,7 @@ static int load_misc_binary(struct linux_binprm *bprm)
if (!enabled)
return retval;

- /* to keep locking time low, we copy the interpreter string */
- read_lock(&entries_lock);
- fmt = check_file(bprm);
- if (fmt)
- dget(fmt->dentry);
- read_unlock(&entries_lock);
+ fmt = get_binfmt_handler(bprm);
if (!fmt)
return retval;

@@ -198,7 +236,16 @@ static int load_misc_binary(struct linux_binprm *bprm)

retval = 0;
ret:
- dput(fmt->dentry);
+
+ /*
+ * If we actually put the node here all concurrent calls to
+ * load_misc_binary() will have finished. We also know
+ * that for the refcount to be zero ->evict_inode() must have removed
+ * the node to be deleted from the list. All that is left for us is to
+ * close and free.
+ */
+ put_binfmt_handler(fmt);
+
return retval;
}

@@ -553,30 +600,90 @@ static struct inode *bm_get_inode(struct super_block *sb, int mode)
return inode;
}

+/**
+ * bm_evict_inode - cleanup data associated with @inode
+ * @inode: inode to which the data is attached
+ *
+ * Cleanup the binary type handler data associated with @inode if a binary type
+ * entry is removed or the filesystem is unmounted and the super block is
+ * shutdown.
+ *
+ * If the ->evict call was not caused by a super block shutdown but by a write
+ * to remove the entry or all entries via bm_{entry,status}_write() the entry
+ * will have already been removed from the list. We keep the list_empty() check
+ * to make that explicit.
+*/
static void bm_evict_inode(struct inode *inode)
{
Node *e = inode->i_private;

- if (e && e->flags & MISC_FMT_OPEN_FILE)
- filp_close(e->interp_file, NULL);
-
clear_inode(inode);
- kfree(e);
+
+ if (e) {
+ write_lock(&entries_lock);
+ if (!list_empty(&e->list))
+ list_del_init(&e->list);
+ write_unlock(&entries_lock);
+ put_binfmt_handler(e);
+ }
}

-static void kill_node(Node *e)
+/**
+ * unlink_binfmt_dentry - remove the dentry for the binary type handler
+ * @dentry: dentry associated with the binary type handler
+ *
+ * Do the actual filesystem work to remove a dentry for a registered binary
+ * type handler. Since binfmt_misc only allows simple files to be created
+ * directly under the root dentry of the filesystem we ensure that we are
+ * indeed passed a dentry directly beneath the root dentry, that the inode
+ * associated with the root dentry is locked, and that it is a regular file we
+ * are asked to remove.
+ */
+static void unlink_binfmt_dentry(struct dentry *dentry)
{
- struct dentry *dentry;
+ struct dentry *parent = dentry->d_parent;
+ struct inode *inode, *parent_inode;
+
+ /* All entries are immediate descendants of the root dentry. */
+ if (WARN_ON_ONCE(dentry->d_sb->s_root != parent))
+ return;

+ /* We only expect to be called on regular files. */
+ inode = d_inode(dentry);
+ if (WARN_ON_ONCE(!S_ISREG(inode->i_mode)))
+ return;
+
+ /* The parent inode must be locked. */
+ parent_inode = d_inode(parent);
+ if (WARN_ON_ONCE(!inode_is_locked(parent_inode)))
+ return;
+
+ if (simple_positive(dentry)) {
+ dget(dentry);
+ simple_unlink(parent_inode, dentry);
+ d_delete(dentry);
+ dput(dentry);
+ }
+}
+
+/**
+ * remove_binfmt_handler - remove a binary type handler
+ * @misc: handle to binfmt_misc instance
+ * @e: binary type handler to remove
+ *
+ * Remove a binary type handler from the list of binary type handlers and
+ * remove its associated dentry. This is called from
+ * binfmt_{entry,status}_write(). In the future, we might want to think about
+ * adding a proper ->unlink() method to binfmt_misc instead of forcing caller's
+ * to use writes to files in order to delete binary type handlers. But it has
+ * worked for so long that it's not a pressing issue.
+ */
+static void remove_binfmt_handler(Node *e)
+{
write_lock(&entries_lock);
list_del_init(&e->list);
write_unlock(&entries_lock);
-
- dentry = e->dentry;
- drop_nlink(d_inode(dentry));
- d_drop(dentry);
- dput(dentry);
- simple_release_fs(&bm_mnt, &entry_count);
+ unlink_binfmt_dentry(e->dentry);
}

/* /<entry> */
@@ -603,8 +710,8 @@ bm_entry_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
- struct dentry *root;
- Node *e = file_inode(file)->i_private;
+ struct inode *inode = file_inode(file);
+ Node *e = inode->i_private;
int res = parse_command(buffer, count);

switch (res) {
@@ -618,13 +725,22 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
break;
case 3:
/* Delete this handler. */
- root = file_inode(file)->i_sb->s_root;
- inode_lock(d_inode(root));
+ inode = d_inode(inode->i_sb->s_root);
+ inode_lock(inode);

+ /*
+ * In order to add new element or remove elements from the list
+ * via bm_{entry,register,status}_write() inode_lock() on the
+ * root inode must be held.
+ * The lock is exclusive ensuring that the list can't be
+ * modified. Only load_misc_binary() can access but does so
+ * read-only. So we only need to take the write lock when we
+ * actually remove the entry from the list.
+ */
if (!list_empty(&e->list))
- kill_node(e);
+ remove_binfmt_handler(e);

- inode_unlock(d_inode(root));
+ inode_unlock(inode);
break;
default:
return res;
@@ -683,13 +799,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
if (!inode)
goto out2;

- err = simple_pin_fs(&bm_fs_type, &bm_mnt, &entry_count);
- if (err) {
- iput(inode);
- inode = NULL;
- goto out2;
- }
-
+ refcount_set(&e->users, 1);
e->dentry = dget(dentry);
inode->i_private = e;
inode->i_fop = &bm_entry_operations;
@@ -733,7 +843,8 @@ static ssize_t bm_status_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
int res = parse_command(buffer, count);
- struct dentry *root;
+ Node *e, *next;
+ struct inode *inode;

switch (res) {
case 1:
@@ -746,13 +857,22 @@ static ssize_t bm_status_write(struct file *file, const char __user *buffer,
break;
case 3:
/* Delete all handlers. */
- root = file_inode(file)->i_sb->s_root;
- inode_lock(d_inode(root));
+ inode = d_inode(file_inode(file)->i_sb->s_root);
+ inode_lock(inode);

- while (!list_empty(&entries))
- kill_node(list_first_entry(&entries, Node, list));
+ /*
+ * In order to add new element or remove elements from the list
+ * via bm_{entry,register,status}_write() inode_lock() on the
+ * root inode must be held.
+ * The lock is exclusive ensuring that the list can't be
+ * modified. Only load_misc_binary() can access but does so
+ * read-only. So we only need to take the write lock when we
+ * actually remove the entry from the list.
+ */
+ list_for_each_entry_safe(e, next, &entries, list)
+ remove_binfmt_handler(e);

- inode_unlock(d_inode(root));
+ inode_unlock(inode);
break;
default:
return res;
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 8d8b45599236..fa4a5053ca89 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -901,7 +901,7 @@ static void btrfs_release_delayed_inode(struct btrfs_delayed_node *delayed_node)

if (delayed_node &&
test_bit(BTRFS_DELAYED_NODE_INODE_DIRTY, &delayed_node->flags)) {
- BUG_ON(!delayed_node->root);
+ ASSERT(delayed_node->root);
clear_bit(BTRFS_DELAYED_NODE_INODE_DIRTY, &delayed_node->flags);
delayed_node->count--;

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 0004488eeb06..ed8729c99088 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -1787,9 +1787,9 @@ static void bitmap_clear_bits(struct btrfs_free_space_ctl *ctl,
ctl->free_space -= bytes;
}

-static void bitmap_set_bits(struct btrfs_free_space_ctl *ctl,
- struct btrfs_free_space *info, u64 offset,
- u64 bytes)
+static void btrfs_bitmap_set_bits(struct btrfs_free_space_ctl *ctl,
+ struct btrfs_free_space *info, u64 offset,
+ u64 bytes)
{
unsigned long start, count, end;
int extent_delta = 1;
@@ -2085,7 +2085,7 @@ static u64 add_bytes_to_bitmap(struct btrfs_free_space_ctl *ctl,

bytes_to_set = min(end - offset, bytes);

- bitmap_set_bits(ctl, info, offset, bytes_to_set);
+ btrfs_bitmap_set_bits(ctl, info, offset, bytes_to_set);

/*
* We set some bytes, we have no idea what the max extent size is
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 07c6ab4ba0d4..66b56ddf3f4c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4411,7 +4411,14 @@ static noinline int may_destroy_subvol(struct btrfs_root *root)
ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);
if (ret < 0)
goto out;
- BUG_ON(ret == 0);
+ if (ret == 0) {
+ /*
+ * Key with offset -1 found, there would have to exist a root
+ * with such id, but this is out of valid range.
+ */
+ ret = -EUCLEAN;
+ goto out;
+ }

ret = 0;
if (path->slots[0] > 0) {
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 1f5ab51e18dc..6cff41c46d02 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2648,8 +2648,6 @@ int btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans, u64 bytenr,
if (nr_old_roots == 0 && nr_new_roots == 0)
goto out_free;

- BUG_ON(!fs_info->quota_root);
-
trace_btrfs_qgroup_account_extent(fs_info, trans->transid, bytenr,
num_bytes, nr_old_roots, nr_new_roots);

@@ -3679,6 +3677,8 @@ static int try_flush_qgroup(struct btrfs_root *root)
return 0;
}

+ btrfs_run_delayed_iputs(root->fs_info);
+ btrfs_wait_on_delayed_iputs(root->fs_info);
ret = btrfs_start_delalloc_snapshot(root, true);
if (ret < 0)
goto out;
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index c2842e892e4e..577980b33aeb 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -695,7 +695,12 @@ static int begin_cmd(struct send_ctx *sctx, int cmd)
if (WARN_ON(!sctx->send_buf))
return -EINVAL;

- BUG_ON(sctx->send_size);
+ if (unlikely(sctx->send_size != 0)) {
+ btrfs_err(sctx->send_root->fs_info,
+ "send: command header buffer not empty cmd %d offset %llu",
+ cmd, sctx->send_off);
+ return -EINVAL;
+ }

sctx->send_size += sizeof(*hdr);
hdr = (struct btrfs_cmd_header *)sctx->send_buf;
@@ -6877,8 +6882,8 @@ static int tree_move_down(struct btrfs_path *path, int *level, u64 reada_min_gen
u64 reada_done = 0;

lockdep_assert_held_read(&parent->fs_info->commit_root_sem);
+ ASSERT(*level != 0);

- BUG_ON(*level == 0);
eb = btrfs_read_node_slot(parent, slot);
if (IS_ERR(eb))
return PTR_ERR(eb);
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index a190ae887bdc..97f3c83e6aeb 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -1596,6 +1596,72 @@ static int check_inode_ref(struct extent_buffer *leaf,
return 0;
}

+static int check_dev_extent_item(const struct extent_buffer *leaf,
+ const struct btrfs_key *key,
+ int slot,
+ struct btrfs_key *prev_key)
+{
+ struct btrfs_dev_extent *de;
+ const u32 sectorsize = leaf->fs_info->sectorsize;
+
+ de = btrfs_item_ptr(leaf, slot, struct btrfs_dev_extent);
+ /* Basic fixed member checks. */
+ if (unlikely(btrfs_dev_extent_chunk_tree(leaf, de) !=
+ BTRFS_CHUNK_TREE_OBJECTID)) {
+ generic_err(leaf, slot,
+ "invalid dev extent chunk tree id, has %llu expect %llu",
+ btrfs_dev_extent_chunk_tree(leaf, de),
+ BTRFS_CHUNK_TREE_OBJECTID);
+ return -EUCLEAN;
+ }
+ if (unlikely(btrfs_dev_extent_chunk_objectid(leaf, de) !=
+ BTRFS_FIRST_CHUNK_TREE_OBJECTID)) {
+ generic_err(leaf, slot,
+ "invalid dev extent chunk objectid, has %llu expect %llu",
+ btrfs_dev_extent_chunk_objectid(leaf, de),
+ BTRFS_FIRST_CHUNK_TREE_OBJECTID);
+ return -EUCLEAN;
+ }
+ /* Alignment check. */
+ if (unlikely(!IS_ALIGNED(key->offset, sectorsize))) {
+ generic_err(leaf, slot,
+ "invalid dev extent key.offset, has %llu not aligned to %u",
+ key->offset, sectorsize);
+ return -EUCLEAN;
+ }
+ if (unlikely(!IS_ALIGNED(btrfs_dev_extent_chunk_offset(leaf, de),
+ sectorsize))) {
+ generic_err(leaf, slot,
+ "invalid dev extent chunk offset, has %llu not aligned to %u",
+ btrfs_dev_extent_chunk_objectid(leaf, de),
+ sectorsize);
+ return -EUCLEAN;
+ }
+ if (unlikely(!IS_ALIGNED(btrfs_dev_extent_length(leaf, de),
+ sectorsize))) {
+ generic_err(leaf, slot,
+ "invalid dev extent length, has %llu not aligned to %u",
+ btrfs_dev_extent_length(leaf, de), sectorsize);
+ return -EUCLEAN;
+ }
+ /* Overlap check with previous dev extent. */
+ if (slot && prev_key->objectid == key->objectid &&
+ prev_key->type == key->type) {
+ struct btrfs_dev_extent *prev_de;
+ u64 prev_len;
+
+ prev_de = btrfs_item_ptr(leaf, slot - 1, struct btrfs_dev_extent);
+ prev_len = btrfs_dev_extent_length(leaf, prev_de);
+ if (unlikely(prev_key->offset + prev_len > key->offset)) {
+ generic_err(leaf, slot,
+ "dev extent overlap, prev offset %llu len %llu current offset %llu",
+ prev_key->objectid, prev_len, key->offset);
+ return -EUCLEAN;
+ }
+ }
+ return 0;
+}
+
/*
* Common point to switch the item-specific validation.
*/
@@ -1631,6 +1697,9 @@ static int check_leaf_item(struct extent_buffer *leaf,
case BTRFS_DEV_ITEM_KEY:
ret = check_dev_item(leaf, key, slot);
break;
+ case BTRFS_DEV_EXTENT_KEY:
+ ret = check_dev_extent_item(leaf, key, slot, prev_key);
+ break;
case BTRFS_INODE_ITEM_KEY:
ret = check_inode_item(leaf, key, slot);
break;
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 6c41bf322315..a3869e9c71b9 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3404,9 +3404,10 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
struct ext4_extent *ex, *abut_ex;
ext4_lblk_t ee_block, eof_block;
unsigned int ee_len, depth, map_len = map->m_len;
- int allocated = 0, max_zeroout = 0;
int err = 0;
int split_flag = EXT4_EXT_DATA_VALID2;
+ int allocated = 0;
+ unsigned int max_zeroout = 0;

ext_debug(inode, "logical block %llu, max_blocks %u\n",
(unsigned long long)map->m_lblk, map_len);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 630a5e5a380e..a48c9cc5aa6e 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -6496,6 +6496,9 @@ __releases(ext4_group_lock_ptr(sb, e4b->bd_group))
bool set_trimmed = false;
void *bitmap;

+ if (unlikely(EXT4_MB_GRP_BBITMAP_CORRUPT(e4b->bd_info)))
+ return 0;
+
last = ext4_last_grp_cluster(sb, e4b->bd_group);
bitmap = e4b->bd_bitmap;
if (start == 0 && max >= last)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 1c69dc91c329..dc33b4e5c07b 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2269,6 +2269,8 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
#endif

segno = GET_SEGNO(sbi, blkaddr);
+ if (segno == NULL_SEGNO)
+ return;

se = get_seg_entry(sbi, segno);
new_vblocks = se->valid_blocks + del;
@@ -3443,8 +3445,7 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
* since SSR needs latest valid block information.
*/
update_sit_entry(sbi, *new_blkaddr, 1);
- if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO)
- update_sit_entry(sbi, old_blkaddr, -1);
+ update_sit_entry(sbi, old_blkaddr, -1);

if (!__has_curseg_space(sbi, curseg)) {
if (from_gc)
diff --git a/fs/file.c b/fs/file.c
index 0669cc0f1809..72fe61e550cd 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -46,27 +46,23 @@ static void free_fdtable_rcu(struct rcu_head *rcu)
#define BITBIT_NR(nr) BITS_TO_LONGS(BITS_TO_LONGS(nr))
#define BITBIT_SIZE(nr) (BITBIT_NR(nr) * sizeof(long))

+#define fdt_words(fdt) ((fdt)->max_fds / BITS_PER_LONG) // words in ->open_fds
/*
* Copy 'count' fd bits from the old table to the new table and clear the extra
* space if any. This does not copy the file pointers. Called with the files
* spinlock held for write.
*/
-static void copy_fd_bitmaps(struct fdtable *nfdt, struct fdtable *ofdt,
- unsigned int count)
+static inline void copy_fd_bitmaps(struct fdtable *nfdt, struct fdtable *ofdt,
+ unsigned int copy_words)
{
- unsigned int cpy, set;
-
- cpy = count / BITS_PER_BYTE;
- set = (nfdt->max_fds - count) / BITS_PER_BYTE;
- memcpy(nfdt->open_fds, ofdt->open_fds, cpy);
- memset((char *)nfdt->open_fds + cpy, 0, set);
- memcpy(nfdt->close_on_exec, ofdt->close_on_exec, cpy);
- memset((char *)nfdt->close_on_exec + cpy, 0, set);
-
- cpy = BITBIT_SIZE(count);
- set = BITBIT_SIZE(nfdt->max_fds) - cpy;
- memcpy(nfdt->full_fds_bits, ofdt->full_fds_bits, cpy);
- memset((char *)nfdt->full_fds_bits + cpy, 0, set);
+ unsigned int nwords = fdt_words(nfdt);
+
+ bitmap_copy_and_extend(nfdt->open_fds, ofdt->open_fds,
+ copy_words * BITS_PER_LONG, nwords * BITS_PER_LONG);
+ bitmap_copy_and_extend(nfdt->close_on_exec, ofdt->close_on_exec,
+ copy_words * BITS_PER_LONG, nwords * BITS_PER_LONG);
+ bitmap_copy_and_extend(nfdt->full_fds_bits, ofdt->full_fds_bits,
+ copy_words, nwords);
}

/*
@@ -84,7 +80,7 @@ static void copy_fdtable(struct fdtable *nfdt, struct fdtable *ofdt)
memcpy(nfdt->fd, ofdt->fd, cpy);
memset((char *)nfdt->fd + cpy, 0, set);

- copy_fd_bitmaps(nfdt, ofdt, ofdt->max_fds);
+ copy_fd_bitmaps(nfdt, ofdt, fdt_words(ofdt));
}

/*
@@ -374,7 +370,7 @@ struct files_struct *dup_fd(struct files_struct *oldf, unsigned int max_fds, int
open_files = sane_fdtable_size(old_fdt, max_fds);
}

- copy_fd_bitmaps(new_fdt, old_fdt, open_files);
+ copy_fd_bitmaps(new_fdt, old_fdt, open_files / BITS_PER_LONG);

old_fds = old_fdt->fd;
new_fds = new_fdt->fd;
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index c7d882a9fe33..295344a462e1 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -474,8 +474,7 @@ static int cuse_send_init(struct cuse_conn *cc)

static void cuse_fc_release(struct fuse_conn *fc)
{
- struct cuse_conn *cc = fc_to_cc(fc);
- kfree_rcu(cc, fc.rcu);
+ kfree(fc_to_cc(fc));
}

/**
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index d6b5339c56e2..86416f7b8b55 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1623,9 +1623,11 @@ static int fuse_notify_store(struct fuse_conn *fc, unsigned int size,

this_num = min_t(unsigned, num, PAGE_SIZE - offset);
err = fuse_copy_page(cs, &page, offset, this_num, 0);
- if (!err && offset == 0 &&
- (this_num == PAGE_SIZE || file_size == end))
+ if (!PageUptodate(page) && !err && offset == 0 &&
+ (this_num == PAGE_SIZE || file_size == end)) {
+ zero_user_segment(page, this_num, PAGE_SIZE);
SetPageUptodate(page);
+ }
unlock_page(page);
put_page(page);

diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 55b7ca26fb8a..ac655c7a15db 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -848,6 +848,7 @@ struct fuse_mount {

/* Entry on fc->mounts */
struct list_head fc_entry;
+ struct rcu_head rcu;
};

static inline struct fuse_mount *get_fuse_mount_super(struct super_block *sb)
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 396866f9d72c..40a4c7680bd7 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -883,6 +883,14 @@ void fuse_conn_init(struct fuse_conn *fc, struct fuse_mount *fm,
}
EXPORT_SYMBOL_GPL(fuse_conn_init);

+static void delayed_release(struct rcu_head *p)
+{
+ struct fuse_conn *fc = container_of(p, struct fuse_conn, rcu);
+
+ put_user_ns(fc->user_ns);
+ fc->release(fc);
+}
+
void fuse_conn_put(struct fuse_conn *fc)
{
if (refcount_dec_and_test(&fc->count)) {
@@ -894,13 +902,12 @@ void fuse_conn_put(struct fuse_conn *fc)
if (fiq->ops->release)
fiq->ops->release(fiq);
put_pid_ns(fc->pid_ns);
- put_user_ns(fc->user_ns);
bucket = rcu_dereference_protected(fc->curr_bucket, 1);
if (bucket) {
WARN_ON(atomic_read(&bucket->count) != 1);
kfree(bucket);
}
- fc->release(fc);
+ call_rcu(&fc->rcu, delayed_release);
}
}
EXPORT_SYMBOL_GPL(fuse_conn_put);
@@ -1297,7 +1304,7 @@ EXPORT_SYMBOL_GPL(fuse_send_init);
void fuse_free_conn(struct fuse_conn *fc)
{
WARN_ON(!list_empty(&fc->devices));
- kfree_rcu(fc, rcu);
+ kfree(fc);
}
EXPORT_SYMBOL_GPL(fuse_free_conn);

@@ -1836,7 +1843,7 @@ static void fuse_sb_destroy(struct super_block *sb)
void fuse_mount_destroy(struct fuse_mount *fm)
{
fuse_conn_put(fm->fc);
- kfree(fm);
+ kfree_rcu(fm, rcu);
}
EXPORT_SYMBOL(fuse_mount_destroy);

diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 94fc874f5de7..a4deacc6f78c 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -310,6 +310,16 @@ static int virtio_fs_read_tag(struct virtio_device *vdev, struct virtio_fs *fs)
return -ENOMEM;
memcpy(fs->tag, tag_buf, len);
fs->tag[len] = '\0';
+
+ /* While the VIRTIO specification allows any character, newlines are
+ * awkward on mount(8) command-lines and cause problems in the sysfs
+ * "tag" attr and uevent TAG= properties. Forbid them.
+ */
+ if (strchr(fs->tag, '\n')) {
+ dev_dbg(&vdev->dev, "refusing virtiofs tag with newline character\n");
+ return -EINVAL;
+ }
+
return 0;
}

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 462e957eda8b..763d8dccdfc1 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1910,7 +1910,7 @@ static int setattr_chown(struct inode *inode, struct iattr *attr)
kuid_t ouid, nuid;
kgid_t ogid, ngid;
int error;
- struct gfs2_alloc_parms ap;
+ struct gfs2_alloc_parms ap = {};

ouid = inode->i_uid;
ogid = inode->i_gid;
diff --git a/fs/inode.c b/fs/inode.c
index ec41a11e2f8f..f957c130c7a6 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -456,6 +456,39 @@ static void inode_lru_list_del(struct inode *inode)
this_cpu_dec(nr_unused);
}

+static void inode_pin_lru_isolating(struct inode *inode)
+{
+ lockdep_assert_held(&inode->i_lock);
+ WARN_ON(inode->i_state & (I_LRU_ISOLATING | I_FREEING | I_WILL_FREE));
+ inode->i_state |= I_LRU_ISOLATING;
+}
+
+static void inode_unpin_lru_isolating(struct inode *inode)
+{
+ spin_lock(&inode->i_lock);
+ WARN_ON(!(inode->i_state & I_LRU_ISOLATING));
+ inode->i_state &= ~I_LRU_ISOLATING;
+ smp_mb();
+ wake_up_bit(&inode->i_state, __I_LRU_ISOLATING);
+ spin_unlock(&inode->i_lock);
+}
+
+static void inode_wait_for_lru_isolating(struct inode *inode)
+{
+ spin_lock(&inode->i_lock);
+ if (inode->i_state & I_LRU_ISOLATING) {
+ DEFINE_WAIT_BIT(wq, &inode->i_state, __I_LRU_ISOLATING);
+ wait_queue_head_t *wqh;
+
+ wqh = bit_waitqueue(&inode->i_state, __I_LRU_ISOLATING);
+ spin_unlock(&inode->i_lock);
+ __wait_on_bit(wqh, &wq, bit_wait, TASK_UNINTERRUPTIBLE);
+ spin_lock(&inode->i_lock);
+ WARN_ON(inode->i_state & I_LRU_ISOLATING);
+ }
+ spin_unlock(&inode->i_lock);
+}
+
/**
* inode_sb_list_add - add inode to the superblock list of inodes
* @inode: inode to add
@@ -575,6 +608,8 @@ static void evict(struct inode *inode)

inode_sb_list_del(inode);

+ inode_wait_for_lru_isolating(inode);
+
/*
* Wait for flusher thread to be done with the inode so that filesystem
* does not start destroying it while writeback is still running. Since
@@ -772,7 +807,7 @@ static enum lru_status inode_lru_isolate(struct list_head *item,
}

if (inode_has_buffers(inode) || !mapping_empty(&inode->i_data)) {
- __iget(inode);
+ inode_pin_lru_isolating(inode);
spin_unlock(&inode->i_lock);
spin_unlock(lru_lock);
if (remove_inode_buffers(inode)) {
@@ -785,7 +820,7 @@ static enum lru_status inode_lru_isolate(struct list_head *item,
if (current->reclaim_state)
current->reclaim_state->reclaimed_slab += reap;
}
- iput(inode);
+ inode_unpin_lru_isolating(inode);
spin_lock(lru_lock);
return LRU_RETRY;
}
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 5579e67da17d..c33f78513f00 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -759,8 +759,6 @@ static const struct svc_version *nlmsvc_version[] = {
#endif
};

-static struct svc_stat nlmsvc_stats;
-
#define NLM_NRVERS ARRAY_SIZE(nlmsvc_version)
static struct svc_program nlmsvc_program = {
.pg_prog = NLM_PROGRAM, /* program number */
@@ -768,7 +766,6 @@ static struct svc_program nlmsvc_program = {
.pg_vers = nlmsvc_version, /* version table */
.pg_name = "lockd", /* service name */
.pg_class = "nfsd", /* share authentication with nfsd */
- .pg_stats = &nlmsvc_stats, /* stats table */
.pg_authenticate = &lockd_authenticate, /* export authentication */
.pg_init_request = svc_generic_init_request,
.pg_rpcbind_set = svc_generic_rpcbind_set,
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 8fe143cad4a2..f00fff3633f6 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -407,15 +407,12 @@ static const struct svc_version *nfs4_callback_version[] = {
[4] = &nfs4_callback_version4,
};

-static struct svc_stat nfs4_callback_stats;
-
static struct svc_program nfs4_callback_program = {
.pg_prog = NFS4_CALLBACK, /* RPC service number */
.pg_nvers = ARRAY_SIZE(nfs4_callback_version), /* Number of entries */
.pg_vers = nfs4_callback_version, /* version table */
.pg_name = "NFSv4 callback", /* service name */
.pg_class = "nfs", /* authentication class */
- .pg_stats = &nfs4_callback_stats,
.pg_authenticate = nfs_callback_authenticate,
.pg_init_request = svc_generic_init_request,
.pg_rpcbind_set = svc_generic_rpcbind_set,
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 9f6776c7062e..e13f1c762951 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1994,6 +1994,14 @@ pnfs_update_layout(struct inode *ino,
}

lookup_again:
+ if (!nfs4_valid_open_stateid(ctx->state)) {
+ trace_pnfs_update_layout(ino, pos, count,
+ iomode, lo, lseg,
+ PNFS_UPDATE_LAYOUT_INVALID_OPEN);
+ lseg = ERR_PTR(-EIO);
+ goto out;
+ }
+
lseg = ERR_PTR(nfs4_client_recover_expired_lease(clp));
if (IS_ERR(lseg))
goto out;
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 668c7527b17e..16fadade86cc 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -339,12 +339,16 @@ static int export_stats_init(struct export_stats *stats)

static void export_stats_reset(struct export_stats *stats)
{
- nfsd_percpu_counters_reset(stats->counter, EXP_STATS_COUNTERS_NUM);
+ if (stats)
+ nfsd_percpu_counters_reset(stats->counter,
+ EXP_STATS_COUNTERS_NUM);
}

static void export_stats_destroy(struct export_stats *stats)
{
- nfsd_percpu_counters_destroy(stats->counter, EXP_STATS_COUNTERS_NUM);
+ if (stats)
+ nfsd_percpu_counters_destroy(stats->counter,
+ EXP_STATS_COUNTERS_NUM);
}

static void svc_export_put(struct kref *ref)
@@ -353,7 +357,8 @@ static void svc_export_put(struct kref *ref)
path_put(&exp->ex_path);
auth_domain_put(exp->ex_client);
nfsd4_fslocs_free(&exp->ex_fslocs);
- export_stats_destroy(&exp->ex_stats);
+ export_stats_destroy(exp->ex_stats);
+ kfree(exp->ex_stats);
kfree(exp->ex_uuid);
kfree_rcu(exp, ex_rcu);
}
@@ -744,13 +749,15 @@ static int svc_export_show(struct seq_file *m,
seq_putc(m, '\t');
seq_escape(m, exp->ex_client->name, " \t\n\\");
if (export_stats) {
- seq_printf(m, "\t%lld\n", exp->ex_stats.start_time);
+ struct percpu_counter *counter = exp->ex_stats->counter;
+
+ seq_printf(m, "\t%lld\n", exp->ex_stats->start_time);
seq_printf(m, "\tfh_stale: %lld\n",
- percpu_counter_sum_positive(&exp->ex_stats.counter[EXP_STATS_FH_STALE]));
+ percpu_counter_sum_positive(&counter[EXP_STATS_FH_STALE]));
seq_printf(m, "\tio_read: %lld\n",
- percpu_counter_sum_positive(&exp->ex_stats.counter[EXP_STATS_IO_READ]));
+ percpu_counter_sum_positive(&counter[EXP_STATS_IO_READ]));
seq_printf(m, "\tio_write: %lld\n",
- percpu_counter_sum_positive(&exp->ex_stats.counter[EXP_STATS_IO_WRITE]));
+ percpu_counter_sum_positive(&counter[EXP_STATS_IO_WRITE]));
seq_putc(m, '\n');
return 0;
}
@@ -796,7 +803,7 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
new->ex_layout_types = 0;
new->ex_uuid = NULL;
new->cd = item->cd;
- export_stats_reset(&new->ex_stats);
+ export_stats_reset(new->ex_stats);
}

static void export_update(struct cache_head *cnew, struct cache_head *citem)
@@ -832,7 +839,14 @@ static struct cache_head *svc_export_alloc(void)
if (!i)
return NULL;

- if (export_stats_init(&i->ex_stats)) {
+ i->ex_stats = kmalloc(sizeof(*(i->ex_stats)), GFP_KERNEL);
+ if (!i->ex_stats) {
+ kfree(i);
+ return NULL;
+ }
+
+ if (export_stats_init(i->ex_stats)) {
+ kfree(i->ex_stats);
kfree(i);
return NULL;
}
diff --git a/fs/nfsd/export.h b/fs/nfsd/export.h
index d03f7f6a8642..f73e23bb24a1 100644
--- a/fs/nfsd/export.h
+++ b/fs/nfsd/export.h
@@ -64,10 +64,10 @@ struct svc_export {
struct cache_head h;
struct auth_domain * ex_client;
int ex_flags;
+ int ex_fsid;
struct path ex_path;
kuid_t ex_anon_uid;
kgid_t ex_anon_gid;
- int ex_fsid;
unsigned char * ex_uuid; /* 16 byte fsid */
struct nfsd4_fs_locations ex_fslocs;
uint32_t ex_nflavors;
@@ -76,7 +76,7 @@ struct svc_export {
struct nfsd4_deviceid_map *ex_devid_map;
struct cache_detail *cd;
struct rcu_head ex_rcu;
- struct export_stats ex_stats;
+ struct export_stats *ex_stats;
};

/* an "export key" (expkey) maps a filehandlefragement to an
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h
index 51a4b7885cae..548422b24a7d 100644
--- a/fs/nfsd/netns.h
+++ b/fs/nfsd/netns.h
@@ -10,8 +10,10 @@

#include <net/net_namespace.h>
#include <net/netns/generic.h>
+#include <linux/nfs4.h>
#include <linux/percpu_counter.h>
#include <linux/siphash.h>
+#include <linux/sunrpc/stats.h>

/* Hash tables for nfs4_clientid state */
#define CLIENT_HASH_BITS 4
@@ -25,10 +27,22 @@ struct nfsd4_client_tracking_ops;

enum {
/* cache misses due only to checksum comparison failures */
- NFSD_NET_PAYLOAD_MISSES,
+ NFSD_STATS_PAYLOAD_MISSES,
/* amount of memory (in bytes) currently consumed by the DRC */
- NFSD_NET_DRC_MEM_USAGE,
- NFSD_NET_COUNTERS_NUM
+ NFSD_STATS_DRC_MEM_USAGE,
+ NFSD_STATS_RC_HITS, /* repcache hits */
+ NFSD_STATS_RC_MISSES, /* repcache misses */
+ NFSD_STATS_RC_NOCACHE, /* uncached reqs */
+ NFSD_STATS_FH_STALE, /* FH stale error */
+ NFSD_STATS_IO_READ, /* bytes returned to read requests */
+ NFSD_STATS_IO_WRITE, /* bytes passed in write requests */
+#ifdef CONFIG_NFSD_V4
+ NFSD_STATS_FIRST_NFS4_OP, /* count of individual nfsv4 operations */
+ NFSD_STATS_LAST_NFS4_OP = NFSD_STATS_FIRST_NFS4_OP + LAST_NFS4_OP,
+#define NFSD_STATS_NFS4_OP(op) (NFSD_STATS_FIRST_NFS4_OP + (op))
+ NFSD_STATS_WDELEG_GETATTR, /* count of getattr conflict with wdeleg */
+#endif
+ NFSD_STATS_COUNTERS_NUM
};

/*
@@ -168,7 +182,10 @@ struct nfsd_net {
atomic_t num_drc_entries;

/* Per-netns stats counters */
- struct percpu_counter counter[NFSD_NET_COUNTERS_NUM];
+ struct percpu_counter counter[NFSD_STATS_COUNTERS_NUM];
+
+ /* sunrpc svc stats */
+ struct svc_stat nfsd_svcstats;

/* longest hash chain seen */
unsigned int longest_chain;
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e0ff2212866a..11dcf3debb1d 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -2435,10 +2435,10 @@ nfsd4_proc_null(struct svc_rqst *rqstp)
return rpc_success;
}

-static inline void nfsd4_increment_op_stats(u32 opnum)
+static inline void nfsd4_increment_op_stats(struct nfsd_net *nn, u32 opnum)
{
if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP)
- percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_NFS4_OP(opnum)]);
+ percpu_counter_inc(&nn->counter[NFSD_STATS_NFS4_OP(opnum)]);
}

static const struct nfsd4_operation nfsd4_ops[];
@@ -2713,7 +2713,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp)
status, nfsd4_op_name(op->opnum));

nfsd4_cstate_clear_replay(cstate);
- nfsd4_increment_op_stats(op->opnum);
+ nfsd4_increment_op_stats(nn, op->opnum);
}

fh_put(current_fh);
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 2b5417e06d80..448700939dfe 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -85,8 +85,8 @@ nfsd_hashsize(unsigned int limit)
}

static struct svc_cacherep *
-nfsd_reply_cache_alloc(struct svc_rqst *rqstp, __wsum csum,
- struct nfsd_net *nn)
+nfsd_cacherep_alloc(struct svc_rqst *rqstp, __wsum csum,
+ struct nfsd_net *nn)
{
struct svc_cacherep *rp;

@@ -110,21 +110,48 @@ nfsd_reply_cache_alloc(struct svc_rqst *rqstp, __wsum csum,
return rp;
}

-static void
-nfsd_reply_cache_free_locked(struct nfsd_drc_bucket *b, struct svc_cacherep *rp,
- struct nfsd_net *nn)
+static void nfsd_cacherep_free(struct svc_cacherep *rp)
{
- if (rp->c_type == RC_REPLBUFF && rp->c_replvec.iov_base) {
- nfsd_stats_drc_mem_usage_sub(nn, rp->c_replvec.iov_len);
+ if (rp->c_type == RC_REPLBUFF)
kfree(rp->c_replvec.iov_base);
+ kmem_cache_free(drc_slab, rp);
+}
+
+static unsigned long
+nfsd_cacherep_dispose(struct list_head *dispose)
+{
+ struct svc_cacherep *rp;
+ unsigned long freed = 0;
+
+ while (!list_empty(dispose)) {
+ rp = list_first_entry(dispose, struct svc_cacherep, c_lru);
+ list_del(&rp->c_lru);
+ nfsd_cacherep_free(rp);
+ freed++;
}
+ return freed;
+}
+
+static void
+nfsd_cacherep_unlink_locked(struct nfsd_net *nn, struct nfsd_drc_bucket *b,
+ struct svc_cacherep *rp)
+{
+ if (rp->c_type == RC_REPLBUFF && rp->c_replvec.iov_base)
+ nfsd_stats_drc_mem_usage_sub(nn, rp->c_replvec.iov_len);
if (rp->c_state != RC_UNUSED) {
rb_erase(&rp->c_node, &b->rb_head);
list_del(&rp->c_lru);
atomic_dec(&nn->num_drc_entries);
nfsd_stats_drc_mem_usage_sub(nn, sizeof(*rp));
}
- kmem_cache_free(drc_slab, rp);
+}
+
+static void
+nfsd_reply_cache_free_locked(struct nfsd_drc_bucket *b, struct svc_cacherep *rp,
+ struct nfsd_net *nn)
+{
+ nfsd_cacherep_unlink_locked(nn, b, rp);
+ nfsd_cacherep_free(rp);
}

static void
@@ -132,8 +159,9 @@ nfsd_reply_cache_free(struct nfsd_drc_bucket *b, struct svc_cacherep *rp,
struct nfsd_net *nn)
{
spin_lock(&b->cache_lock);
- nfsd_reply_cache_free_locked(b, rp, nn);
+ nfsd_cacherep_unlink_locked(nn, b, rp);
spin_unlock(&b->cache_lock);
+ nfsd_cacherep_free(rp);
}

int nfsd_drc_slab_create(void)
@@ -148,16 +176,6 @@ void nfsd_drc_slab_free(void)
kmem_cache_destroy(drc_slab);
}

-static int nfsd_reply_cache_stats_init(struct nfsd_net *nn)
-{
- return nfsd_percpu_counters_init(nn->counter, NFSD_NET_COUNTERS_NUM);
-}
-
-static void nfsd_reply_cache_stats_destroy(struct nfsd_net *nn)
-{
- nfsd_percpu_counters_destroy(nn->counter, NFSD_NET_COUNTERS_NUM);
-}
-
int nfsd_reply_cache_init(struct nfsd_net *nn)
{
unsigned int hashsize;
@@ -169,16 +187,12 @@ int nfsd_reply_cache_init(struct nfsd_net *nn)
hashsize = nfsd_hashsize(nn->max_drc_entries);
nn->maskbits = ilog2(hashsize);

- status = nfsd_reply_cache_stats_init(nn);
- if (status)
- goto out_nomem;
-
nn->nfsd_reply_cache_shrinker.scan_objects = nfsd_reply_cache_scan;
nn->nfsd_reply_cache_shrinker.count_objects = nfsd_reply_cache_count;
nn->nfsd_reply_cache_shrinker.seeks = 1;
status = register_shrinker(&nn->nfsd_reply_cache_shrinker);
if (status)
- goto out_stats_destroy;
+ return status;

nn->drc_hashtbl = kvzalloc(array_size(hashsize,
sizeof(*nn->drc_hashtbl)), GFP_KERNEL);
@@ -194,9 +208,6 @@ int nfsd_reply_cache_init(struct nfsd_net *nn)
return 0;
out_shrinker:
unregister_shrinker(&nn->nfsd_reply_cache_shrinker);
-out_stats_destroy:
- nfsd_reply_cache_stats_destroy(nn);
-out_nomem:
printk(KERN_ERR "nfsd: failed to allocate reply cache\n");
return -ENOMEM;
}
@@ -216,7 +227,6 @@ void nfsd_reply_cache_shutdown(struct nfsd_net *nn)
rp, nn);
}
}
- nfsd_reply_cache_stats_destroy(nn);

kvfree(nn->drc_hashtbl);
nn->drc_hashtbl = NULL;
@@ -243,12 +253,21 @@ nfsd_cache_bucket_find(__be32 xid, struct nfsd_net *nn)
return &nn->drc_hashtbl[hash];
}

-static long prune_bucket(struct nfsd_drc_bucket *b, struct nfsd_net *nn,
- unsigned int max)
+/*
+ * Remove and return no more than @max expired entries in bucket @b.
+ * If @max is zero, do not limit the number of removed entries.
+ */
+static void
+nfsd_prune_bucket_locked(struct nfsd_net *nn, struct nfsd_drc_bucket *b,
+ unsigned int max, struct list_head *dispose)
{
+ unsigned long expiry = jiffies - RC_EXPIRE;
struct svc_cacherep *rp, *tmp;
- long freed = 0;
+ unsigned int freed = 0;
+
+ lockdep_assert_held(&b->cache_lock);

+ /* The bucket LRU is ordered oldest-first. */
list_for_each_entry_safe(rp, tmp, &b->lru_head, c_lru) {
/*
* Don't free entries attached to calls that are still
@@ -256,60 +275,77 @@ static long prune_bucket(struct nfsd_drc_bucket *b, struct nfsd_net *nn,
*/
if (rp->c_state == RC_INPROG)
continue;
+
if (atomic_read(&nn->num_drc_entries) <= nn->max_drc_entries &&
- time_before(jiffies, rp->c_timestamp + RC_EXPIRE))
+ time_before(expiry, rp->c_timestamp))
break;
- nfsd_reply_cache_free_locked(b, rp, nn);
- if (max && freed++ > max)
+
+ nfsd_cacherep_unlink_locked(nn, b, rp);
+ list_add(&rp->c_lru, dispose);
+
+ if (max && ++freed > max)
break;
}
- return freed;
}

-static long nfsd_prune_bucket(struct nfsd_drc_bucket *b, struct nfsd_net *nn)
+/**
+ * nfsd_reply_cache_count - count_objects method for the DRC shrinker
+ * @shrink: our registered shrinker context
+ * @sc: garbage collection parameters
+ *
+ * Returns the total number of entries in the duplicate reply cache. To
+ * keep things simple and quick, this is not the number of expired entries
+ * in the cache (ie, the number that would be removed by a call to
+ * nfsd_reply_cache_scan).
+ */
+static unsigned long
+nfsd_reply_cache_count(struct shrinker *shrink, struct shrink_control *sc)
{
- return prune_bucket(b, nn, 3);
+ struct nfsd_net *nn = container_of(shrink,
+ struct nfsd_net, nfsd_reply_cache_shrinker);
+
+ return atomic_read(&nn->num_drc_entries);
}

-/*
- * Walk the LRU list and prune off entries that are older than RC_EXPIRE.
- * Also prune the oldest ones when the total exceeds the max number of entries.
+/**
+ * nfsd_reply_cache_scan - scan_objects method for the DRC shrinker
+ * @shrink: our registered shrinker context
+ * @sc: garbage collection parameters
+ *
+ * Free expired entries on each bucket's LRU list until we've released
+ * nr_to_scan freed objects. Nothing will be released if the cache
+ * has not exceeded it's max_drc_entries limit.
+ *
+ * Returns the number of entries released by this call.
*/
-static long
-prune_cache_entries(struct nfsd_net *nn)
+static unsigned long
+nfsd_reply_cache_scan(struct shrinker *shrink, struct shrink_control *sc)
{
+ struct nfsd_net *nn = container_of(shrink,
+ struct nfsd_net, nfsd_reply_cache_shrinker);
+ unsigned long freed = 0;
+ LIST_HEAD(dispose);
unsigned int i;
- long freed = 0;

for (i = 0; i < nn->drc_hashsize; i++) {
struct nfsd_drc_bucket *b = &nn->drc_hashtbl[i];

if (list_empty(&b->lru_head))
continue;
+
spin_lock(&b->cache_lock);
- freed += prune_bucket(b, nn, 0);
+ nfsd_prune_bucket_locked(nn, b, 0, &dispose);
spin_unlock(&b->cache_lock);
- }
- return freed;
-}

-static unsigned long
-nfsd_reply_cache_count(struct shrinker *shrink, struct shrink_control *sc)
-{
- struct nfsd_net *nn = container_of(shrink,
- struct nfsd_net, nfsd_reply_cache_shrinker);
+ freed += nfsd_cacherep_dispose(&dispose);
+ if (freed > sc->nr_to_scan)
+ break;
+ }

- return atomic_read(&nn->num_drc_entries);
+ trace_nfsd_drc_gc(nn, freed);
+ return freed;
}

-static unsigned long
-nfsd_reply_cache_scan(struct shrinker *shrink, struct shrink_control *sc)
-{
- struct nfsd_net *nn = container_of(shrink,
- struct nfsd_net, nfsd_reply_cache_shrinker);
-
- return prune_cache_entries(nn);
-}
/*
* Walk an xdr_buf and get a CRC for at most the first RC_CSUMLEN bytes
*/
@@ -421,16 +457,18 @@ nfsd_cache_insert(struct nfsd_drc_bucket *b, struct svc_cacherep *key,
*/
int nfsd_cache_lookup(struct svc_rqst *rqstp)
{
- struct nfsd_net *nn;
+ struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
struct svc_cacherep *rp, *found;
__wsum csum;
struct nfsd_drc_bucket *b;
int type = rqstp->rq_cachetype;
+ unsigned long freed;
+ LIST_HEAD(dispose);
int rtn = RC_DOIT;

rqstp->rq_cacherep = NULL;
if (type == RC_NOCACHE) {
- nfsd_stats_rc_nocache_inc();
+ nfsd_stats_rc_nocache_inc(nn);
goto out;
}

@@ -440,8 +478,7 @@ int nfsd_cache_lookup(struct svc_rqst *rqstp)
* Since the common case is a cache miss followed by an insert,
* preallocate an entry.
*/
- nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
- rp = nfsd_reply_cache_alloc(rqstp, csum, nn);
+ rp = nfsd_cacherep_alloc(rqstp, csum, nn);
if (!rp)
goto out;

@@ -450,25 +487,23 @@ int nfsd_cache_lookup(struct svc_rqst *rqstp)
found = nfsd_cache_insert(b, rp, nn);
if (found != rp)
goto found_entry;
-
- nfsd_stats_rc_misses_inc();
rqstp->rq_cacherep = rp;
rp->c_state = RC_INPROG;
+ nfsd_prune_bucket_locked(nn, b, 3, &dispose);
+ spin_unlock(&b->cache_lock);

+ freed = nfsd_cacherep_dispose(&dispose);
+ trace_nfsd_drc_gc(nn, freed);
+
+ nfsd_stats_rc_misses_inc(nn);
atomic_inc(&nn->num_drc_entries);
nfsd_stats_drc_mem_usage_add(nn, sizeof(*rp));
-
- nfsd_prune_bucket(b, nn);
-
-out_unlock:
- spin_unlock(&b->cache_lock);
-out:
- return rtn;
+ goto out;

found_entry:
/* We found a matching entry which is either in progress or done. */
nfsd_reply_cache_free_locked(NULL, rp, nn);
- nfsd_stats_rc_hits_inc();
+ nfsd_stats_rc_hits_inc(nn);
rtn = RC_DROPIT;
rp = found;

@@ -501,7 +536,10 @@ int nfsd_cache_lookup(struct svc_rqst *rqstp)

out_trace:
trace_nfsd_drc_found(nn, rqstp, rtn);
- goto out_unlock;
+out_unlock:
+ spin_unlock(&b->cache_lock);
+out:
+ return rtn;
}

/**
@@ -613,15 +651,15 @@ int nfsd_reply_cache_stats_show(struct seq_file *m, void *v)
atomic_read(&nn->num_drc_entries));
seq_printf(m, "hash buckets: %u\n", 1 << nn->maskbits);
seq_printf(m, "mem usage: %lld\n",
- percpu_counter_sum_positive(&nn->counter[NFSD_NET_DRC_MEM_USAGE]));
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_DRC_MEM_USAGE]));
seq_printf(m, "cache hits: %lld\n",
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_RC_HITS]));
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_RC_HITS]));
seq_printf(m, "cache misses: %lld\n",
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_RC_MISSES]));
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_RC_MISSES]));
seq_printf(m, "not cached: %lld\n",
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_RC_NOCACHE]));
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_RC_NOCACHE]));
seq_printf(m, "payload misses: %lld\n",
- percpu_counter_sum_positive(&nn->counter[NFSD_NET_PAYLOAD_MISSES]));
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_PAYLOAD_MISSES]));
seq_printf(m, "longest chain len: %u\n", nn->longest_chain);
seq_printf(m, "cachesize at longest: %u\n", nn->longest_chain_cachesize);
return 0;
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index f77f00c93172..2feaa49fb9fe 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1458,18 +1458,21 @@ static __net_init int nfsd_init_net(struct net *net)
retval = nfsd_idmap_init(net);
if (retval)
goto out_idmap_error;
+ retval = nfsd_stat_counters_init(nn);
+ if (retval)
+ goto out_repcache_error;
+ memset(&nn->nfsd_svcstats, 0, sizeof(nn->nfsd_svcstats));
+ nn->nfsd_svcstats.program = &nfsd_program;
nn->nfsd_versions = NULL;
nn->nfsd4_minorversions = NULL;
nfsd4_init_leases_net(nn);
- retval = nfsd_reply_cache_init(nn);
- if (retval)
- goto out_cache_error;
get_random_bytes(&nn->siphash_key, sizeof(nn->siphash_key));
seqlock_init(&nn->writeverf_lock);
+ nfsd_proc_stat_init(net);

return 0;

-out_cache_error:
+out_repcache_error:
nfsd_idmap_shutdown(net);
out_idmap_error:
nfsd_export_shutdown(net);
@@ -1481,10 +1484,11 @@ static __net_exit void nfsd_exit_net(struct net *net)
{
struct nfsd_net *nn = net_generic(net, nfsd_net_id);

- nfsd_reply_cache_shutdown(nn);
+ nfsd_proc_stat_shutdown(net);
+ nfsd_stat_counters_destroy(nn);
nfsd_idmap_shutdown(net);
nfsd_export_shutdown(net);
- nfsd_netns_free_versions(net_generic(net, nfsd_net_id));
+ nfsd_netns_free_versions(nn);
}

static struct pernet_operations nfsd_net_ops = {
@@ -1504,12 +1508,9 @@ static int __init init_nfsd(void)
retval = nfsd4_init_pnfs();
if (retval)
goto out_free_slabs;
- retval = nfsd_stat_init(); /* Statistics */
- if (retval)
- goto out_free_pnfs;
retval = nfsd_drc_slab_create();
if (retval)
- goto out_free_stat;
+ goto out_free_pnfs;
nfsd_lockd_init(); /* lockd->nfsd callbacks */
retval = create_proc_exports_entry();
if (retval)
@@ -1539,8 +1540,6 @@ static int __init init_nfsd(void)
out_free_lockd:
nfsd_lockd_shutdown();
nfsd_drc_slab_free();
-out_free_stat:
- nfsd_stat_shutdown();
out_free_pnfs:
nfsd4_exit_pnfs();
out_free_slabs:
@@ -1557,7 +1556,6 @@ static void __exit exit_nfsd(void)
nfsd_drc_slab_free();
remove_proc_entry("fs/nfs/exports", NULL);
remove_proc_entry("fs/nfs", NULL);
- nfsd_stat_shutdown();
nfsd_lockd_shutdown();
nfsd4_free_slabs();
nfsd4_exit_pnfs();
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 013bfa24ced2..996f3f62335b 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -69,6 +69,7 @@ extern struct mutex nfsd_mutex;
extern spinlock_t nfsd_drc_lock;
extern unsigned long nfsd_drc_max_mem;
extern unsigned long nfsd_drc_mem_used;
+extern atomic_t nfsd_th_cnt; /* number of available threads */

extern const struct seq_operations nfs_exports_op;

diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 3a2ad88ae648..e73e9d44f1b0 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -327,6 +327,7 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp)
__be32
fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access)
{
+ struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
struct svc_export *exp = NULL;
struct dentry *dentry;
__be32 error;
@@ -395,7 +396,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access)
out:
trace_nfsd_fh_verify_err(rqstp, fhp, type, access, error);
if (error == nfserr_stale)
- nfsd_stats_fh_stale_inc(exp);
+ nfsd_stats_fh_stale_inc(nn, exp);
return error;
}

diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 3d4fd40c987b..6b4f7977f86d 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -34,6 +34,7 @@

#define NFSDDBG_FACILITY NFSDDBG_SVC

+atomic_t nfsd_th_cnt = ATOMIC_INIT(0);
extern struct svc_program nfsd_program;
static int nfsd(void *vrqstp);
#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
@@ -89,7 +90,6 @@ unsigned long nfsd_drc_max_mem;
unsigned long nfsd_drc_mem_used;

#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
-static struct svc_stat nfsd_acl_svcstats;
static const struct svc_version *nfsd_acl_version[] = {
# if defined(CONFIG_NFSD_V2_ACL)
[2] = &nfsd_acl_version2,
@@ -108,15 +108,11 @@ static struct svc_program nfsd_acl_program = {
.pg_vers = nfsd_acl_version,
.pg_name = "nfsacl",
.pg_class = "nfsd",
- .pg_stats = &nfsd_acl_svcstats,
.pg_authenticate = &svc_set_client,
.pg_init_request = nfsd_acl_init_request,
.pg_rpcbind_set = nfsd_acl_rpcbind_set,
};

-static struct svc_stat nfsd_acl_svcstats = {
- .program = &nfsd_acl_program,
-};
#endif /* defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) */

static const struct svc_version *nfsd_version[] = {
@@ -141,7 +137,6 @@ struct svc_program nfsd_program = {
.pg_vers = nfsd_version, /* version table */
.pg_name = "nfsd", /* program name */
.pg_class = "nfsd", /* authentication class */
- .pg_stats = &nfsd_svcstats, /* version table */
.pg_authenticate = &svc_set_client, /* export authentication */
.pg_init_request = nfsd_init_request,
.pg_rpcbind_set = nfsd_rpcbind_set,
@@ -427,16 +422,23 @@ static int nfsd_startup_net(struct net *net, const struct cred *cred)
ret = nfsd_file_cache_start_net(net);
if (ret)
goto out_lockd;
- ret = nfs4_state_start_net(net);
+
+ ret = nfsd_reply_cache_init(nn);
if (ret)
goto out_filecache;

+ ret = nfs4_state_start_net(net);
+ if (ret)
+ goto out_reply_cache;
+
#ifdef CONFIG_NFSD_V4_2_INTER_SSC
nfsd4_ssc_init_umount_work(nn);
#endif
nn->nfsd_net_up = true;
return 0;

+out_reply_cache:
+ nfsd_reply_cache_shutdown(nn);
out_filecache:
nfsd_file_cache_shutdown_net(net);
out_lockd:
@@ -454,6 +456,7 @@ static void nfsd_shutdown_net(struct net *net)
struct nfsd_net *nn = net_generic(net, nfsd_net_id);

nfs4_state_shutdown_net(net);
+ nfsd_reply_cache_shutdown(nn);
nfsd_file_cache_shutdown_net(net);
if (nn->lockd_up) {
lockd_down(net);
@@ -662,7 +665,8 @@ int nfsd_create_serv(struct net *net)
if (nfsd_max_blksize == 0)
nfsd_max_blksize = nfsd_get_default_max_blksize();
nfsd_reset_versions(nn);
- serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize, nfsd);
+ serv = svc_create_pooled(&nfsd_program, &nn->nfsd_svcstats,
+ nfsd_max_blksize, nfsd);
if (serv == NULL)
return -ENOMEM;

@@ -938,7 +942,7 @@ nfsd(void *vrqstp)

current->fs->umask = 0;

- atomic_inc(&nfsdstats.th_cnt);
+ atomic_inc(&nfsd_th_cnt);

set_freezable();

@@ -962,7 +966,7 @@ nfsd(void *vrqstp)
validate_process_creds();
}

- atomic_dec(&nfsdstats.th_cnt);
+ atomic_dec(&nfsd_th_cnt);

out:
/* Release the thread */
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
index 777e24e5da33..7a58dba0045c 100644
--- a/fs/nfsd/stats.c
+++ b/fs/nfsd/stats.c
@@ -27,25 +27,22 @@

#include "nfsd.h"

-struct nfsd_stats nfsdstats;
-struct svc_stat nfsd_svcstats = {
- .program = &nfsd_program,
-};
-
static int nfsd_show(struct seq_file *seq, void *v)
{
+ struct net *net = PDE_DATA(file_inode(seq->file));
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
int i;

seq_printf(seq, "rc %lld %lld %lld\nfh %lld 0 0 0 0\nio %lld %lld\n",
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_RC_HITS]),
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_RC_MISSES]),
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_RC_NOCACHE]),
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_FH_STALE]),
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_IO_READ]),
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_IO_WRITE]));
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_RC_HITS]),
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_RC_MISSES]),
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_RC_NOCACHE]),
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_FH_STALE]),
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_IO_READ]),
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_IO_WRITE]));

/* thread usage: */
- seq_printf(seq, "th %u 0", atomic_read(&nfsdstats.th_cnt));
+ seq_printf(seq, "th %u 0", atomic_read(&nfsd_th_cnt));

/* deprecated thread usage histogram stats */
for (i = 0; i < 10; i++)
@@ -55,7 +52,7 @@ static int nfsd_show(struct seq_file *seq, void *v)
seq_puts(seq, "\nra 0 0 0 0 0 0 0 0 0 0 0 0\n");

/* show my rpc info */
- svc_seq_show(seq, &nfsd_svcstats);
+ svc_seq_show(seq, &nn->nfsd_svcstats);

#ifdef CONFIG_NFSD_V4
/* Show count for individual nfsv4 operations */
@@ -63,7 +60,7 @@ static int nfsd_show(struct seq_file *seq, void *v)
seq_printf(seq,"proc4ops %u", LAST_NFS4_OP + 1);
for (i = 0; i <= LAST_NFS4_OP; i++) {
seq_printf(seq, " %lld",
- percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_NFS4_OP(i)]));
+ percpu_counter_sum_positive(&nn->counter[NFSD_STATS_NFS4_OP(i)]));
}

seq_putc(seq, '\n');
@@ -74,7 +71,7 @@ static int nfsd_show(struct seq_file *seq, void *v)

DEFINE_PROC_SHOW_ATTRIBUTE(nfsd);

-int nfsd_percpu_counters_init(struct percpu_counter counters[], int num)
+int nfsd_percpu_counters_init(struct percpu_counter *counters, int num)
{
int i, err = 0;

@@ -106,31 +103,24 @@ void nfsd_percpu_counters_destroy(struct percpu_counter counters[], int num)
percpu_counter_destroy(&counters[i]);
}

-static int nfsd_stat_counters_init(void)
+int nfsd_stat_counters_init(struct nfsd_net *nn)
{
- return nfsd_percpu_counters_init(nfsdstats.counter, NFSD_STATS_COUNTERS_NUM);
+ return nfsd_percpu_counters_init(nn->counter, NFSD_STATS_COUNTERS_NUM);
}

-static void nfsd_stat_counters_destroy(void)
+void nfsd_stat_counters_destroy(struct nfsd_net *nn)
{
- nfsd_percpu_counters_destroy(nfsdstats.counter, NFSD_STATS_COUNTERS_NUM);
+ nfsd_percpu_counters_destroy(nn->counter, NFSD_STATS_COUNTERS_NUM);
}

-int nfsd_stat_init(void)
+void nfsd_proc_stat_init(struct net *net)
{
- int err;
-
- err = nfsd_stat_counters_init();
- if (err)
- return err;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);

- svc_proc_register(&init_net, &nfsd_svcstats, &nfsd_proc_ops);
-
- return 0;
+ svc_proc_register(net, &nn->nfsd_svcstats, &nfsd_proc_ops);
}

-void nfsd_stat_shutdown(void)
+void nfsd_proc_stat_shutdown(struct net *net)
{
- nfsd_stat_counters_destroy();
- svc_proc_unregister(&init_net, "nfsd");
+ svc_proc_unregister(net, "nfsd");
}
diff --git a/fs/nfsd/stats.h b/fs/nfsd/stats.h
index 9b43dc3d9991..14525e854cba 100644
--- a/fs/nfsd/stats.h
+++ b/fs/nfsd/stats.h
@@ -10,87 +10,66 @@
#include <uapi/linux/nfsd/stats.h>
#include <linux/percpu_counter.h>

-
-enum {
- NFSD_STATS_RC_HITS, /* repcache hits */
- NFSD_STATS_RC_MISSES, /* repcache misses */
- NFSD_STATS_RC_NOCACHE, /* uncached reqs */
- NFSD_STATS_FH_STALE, /* FH stale error */
- NFSD_STATS_IO_READ, /* bytes returned to read requests */
- NFSD_STATS_IO_WRITE, /* bytes passed in write requests */
-#ifdef CONFIG_NFSD_V4
- NFSD_STATS_FIRST_NFS4_OP, /* count of individual nfsv4 operations */
- NFSD_STATS_LAST_NFS4_OP = NFSD_STATS_FIRST_NFS4_OP + LAST_NFS4_OP,
-#define NFSD_STATS_NFS4_OP(op) (NFSD_STATS_FIRST_NFS4_OP + (op))
-#endif
- NFSD_STATS_COUNTERS_NUM
-};
-
-struct nfsd_stats {
- struct percpu_counter counter[NFSD_STATS_COUNTERS_NUM];
-
- atomic_t th_cnt; /* number of available threads */
-};
-
-extern struct nfsd_stats nfsdstats;
-
-extern struct svc_stat nfsd_svcstats;
-
-int nfsd_percpu_counters_init(struct percpu_counter counters[], int num);
-void nfsd_percpu_counters_reset(struct percpu_counter counters[], int num);
-void nfsd_percpu_counters_destroy(struct percpu_counter counters[], int num);
-int nfsd_stat_init(void);
-void nfsd_stat_shutdown(void);
-
-static inline void nfsd_stats_rc_hits_inc(void)
+int nfsd_percpu_counters_init(struct percpu_counter *counters, int num);
+void nfsd_percpu_counters_reset(struct percpu_counter *counters, int num);
+void nfsd_percpu_counters_destroy(struct percpu_counter *counters, int num);
+int nfsd_stat_counters_init(struct nfsd_net *nn);
+void nfsd_stat_counters_destroy(struct nfsd_net *nn);
+void nfsd_proc_stat_init(struct net *net);
+void nfsd_proc_stat_shutdown(struct net *net);
+
+static inline void nfsd_stats_rc_hits_inc(struct nfsd_net *nn)
{
- percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_HITS]);
+ percpu_counter_inc(&nn->counter[NFSD_STATS_RC_HITS]);
}

-static inline void nfsd_stats_rc_misses_inc(void)
+static inline void nfsd_stats_rc_misses_inc(struct nfsd_net *nn)
{
- percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_MISSES]);
+ percpu_counter_inc(&nn->counter[NFSD_STATS_RC_MISSES]);
}

-static inline void nfsd_stats_rc_nocache_inc(void)
+static inline void nfsd_stats_rc_nocache_inc(struct nfsd_net *nn)
{
- percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_NOCACHE]);
+ percpu_counter_inc(&nn->counter[NFSD_STATS_RC_NOCACHE]);
}

-static inline void nfsd_stats_fh_stale_inc(struct svc_export *exp)
+static inline void nfsd_stats_fh_stale_inc(struct nfsd_net *nn,
+ struct svc_export *exp)
{
- percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_FH_STALE]);
- if (exp)
- percpu_counter_inc(&exp->ex_stats.counter[EXP_STATS_FH_STALE]);
+ percpu_counter_inc(&nn->counter[NFSD_STATS_FH_STALE]);
+ if (exp && exp->ex_stats)
+ percpu_counter_inc(&exp->ex_stats->counter[EXP_STATS_FH_STALE]);
}

-static inline void nfsd_stats_io_read_add(struct svc_export *exp, s64 amount)
+static inline void nfsd_stats_io_read_add(struct nfsd_net *nn,
+ struct svc_export *exp, s64 amount)
{
- percpu_counter_add(&nfsdstats.counter[NFSD_STATS_IO_READ], amount);
- if (exp)
- percpu_counter_add(&exp->ex_stats.counter[EXP_STATS_IO_READ], amount);
+ percpu_counter_add(&nn->counter[NFSD_STATS_IO_READ], amount);
+ if (exp && exp->ex_stats)
+ percpu_counter_add(&exp->ex_stats->counter[EXP_STATS_IO_READ], amount);
}

-static inline void nfsd_stats_io_write_add(struct svc_export *exp, s64 amount)
+static inline void nfsd_stats_io_write_add(struct nfsd_net *nn,
+ struct svc_export *exp, s64 amount)
{
- percpu_counter_add(&nfsdstats.counter[NFSD_STATS_IO_WRITE], amount);
- if (exp)
- percpu_counter_add(&exp->ex_stats.counter[EXP_STATS_IO_WRITE], amount);
+ percpu_counter_add(&nn->counter[NFSD_STATS_IO_WRITE], amount);
+ if (exp && exp->ex_stats)
+ percpu_counter_add(&exp->ex_stats->counter[EXP_STATS_IO_WRITE], amount);
}

static inline void nfsd_stats_payload_misses_inc(struct nfsd_net *nn)
{
- percpu_counter_inc(&nn->counter[NFSD_NET_PAYLOAD_MISSES]);
+ percpu_counter_inc(&nn->counter[NFSD_STATS_PAYLOAD_MISSES]);
}

static inline void nfsd_stats_drc_mem_usage_add(struct nfsd_net *nn, s64 amount)
{
- percpu_counter_add(&nn->counter[NFSD_NET_DRC_MEM_USAGE], amount);
+ percpu_counter_add(&nn->counter[NFSD_STATS_DRC_MEM_USAGE], amount);
}

static inline void nfsd_stats_drc_mem_usage_sub(struct nfsd_net *nn, s64 amount)
{
- percpu_counter_sub(&nn->counter[NFSD_NET_DRC_MEM_USAGE], amount);
+ percpu_counter_sub(&nn->counter[NFSD_STATS_DRC_MEM_USAGE], amount);
}

#endif /* _NFSD_STATS_H */
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 276420ea3b8d..91e9921db725 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -1260,6 +1260,28 @@ TRACE_EVENT(nfsd_drc_mismatch,
__entry->ingress)
);

+TRACE_EVENT_CONDITION(nfsd_drc_gc,
+ TP_PROTO(
+ const struct nfsd_net *nn,
+ unsigned long freed
+ ),
+ TP_ARGS(nn, freed),
+ TP_CONDITION(freed > 0),
+ TP_STRUCT__entry(
+ __field(unsigned long long, boot_time)
+ __field(unsigned long, freed)
+ __field(int, total)
+ ),
+ TP_fast_assign(
+ __entry->boot_time = nn->boot_time;
+ __entry->freed = freed;
+ __entry->total = atomic_read(&nn->num_drc_entries);
+ ),
+ TP_printk("boot_time=%16llx total=%d freed=%lu",
+ __entry->boot_time, __entry->total, __entry->freed
+ )
+);
+
TRACE_EVENT(nfsd_cb_args,
TP_PROTO(
const struct nfs4_client *clp,
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 0f430548bfbb..871649030152 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -984,7 +984,9 @@ static __be32 nfsd_finish_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
unsigned long *count, u32 *eof, ssize_t host_err)
{
if (host_err >= 0) {
- nfsd_stats_io_read_add(fhp->fh_export, host_err);
+ struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
+
+ nfsd_stats_io_read_add(nn, fhp->fh_export, host_err);
*eof = nfsd_eof_on_read(file, offset, host_err, *count);
*count = host_err;
fsnotify_access(file);
@@ -1127,7 +1129,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
goto out_nfserr;
}
*cnt = host_err;
- nfsd_stats_io_write_add(exp, *cnt);
+ nfsd_stats_io_write_add(nn, exp, *cnt);
fsnotify_modify(file);
host_err = filemap_check_wb_err(file->f_mapping, since);
if (host_err < 0)
diff --git a/fs/ntfs3/bitmap.c b/fs/ntfs3/bitmap.c
index 95589a496f0f..7dccff6c9983 100644
--- a/fs/ntfs3/bitmap.c
+++ b/fs/ntfs3/bitmap.c
@@ -661,7 +661,7 @@ int wnd_init(struct wnd_bitmap *wnd, struct super_block *sb, size_t nbits)
wnd->total_zeroes = nbits;
wnd->extent_max = MINUS_ONE_T;
wnd->zone_bit = wnd->zone_end = 0;
- wnd->nwnd = bytes_to_block(sb, bitmap_size(nbits));
+ wnd->nwnd = bytes_to_block(sb, ntfs3_bitmap_size(nbits));
wnd->bits_last = nbits & (wbits - 1);
if (!wnd->bits_last)
wnd->bits_last = wbits;
@@ -1325,7 +1325,7 @@ int wnd_extend(struct wnd_bitmap *wnd, size_t new_bits)
return -EINVAL;

/* Align to 8 byte boundary. */
- new_wnd = bytes_to_block(sb, bitmap_size(new_bits));
+ new_wnd = bytes_to_block(sb, ntfs3_bitmap_size(new_bits));
new_last = new_bits & (wbits - 1);
if (!new_last)
new_last = wbits;
diff --git a/fs/ntfs3/fsntfs.c b/fs/ntfs3/fsntfs.c
index 4bd3e6718ee6..abf28c0db71a 100644
--- a/fs/ntfs3/fsntfs.c
+++ b/fs/ntfs3/fsntfs.c
@@ -493,7 +493,7 @@ static int ntfs_extend_mft(struct ntfs_sb_info *sbi)
ni->mi.dirty = true;

/* Step 2: Resize $MFT::BITMAP. */
- new_bitmap_bytes = bitmap_size(new_mft_total);
+ new_bitmap_bytes = ntfs3_bitmap_size(new_mft_total);

err = attr_set_size(ni, ATTR_BITMAP, NULL, 0, &sbi->mft.bitmap.run,
new_bitmap_bytes, &new_bitmap_bytes, true, NULL);
diff --git a/fs/ntfs3/index.c b/fs/ntfs3/index.c
index 13f492d0d971..9cffd59e9735 100644
--- a/fs/ntfs3/index.c
+++ b/fs/ntfs3/index.c
@@ -1461,8 +1461,8 @@ static int indx_create_allocate(struct ntfs_index *indx, struct ntfs_inode *ni,

alloc->nres.valid_size = alloc->nres.data_size = cpu_to_le64(data_size);

- err = ni_insert_resident(ni, bitmap_size(1), ATTR_BITMAP, in->name,
- in->name_len, &bitmap, NULL, NULL);
+ err = ni_insert_resident(ni, ntfs3_bitmap_size(1), ATTR_BITMAP,
+ in->name, in->name_len, &bitmap, NULL, NULL);
if (err)
goto out2;

@@ -1523,8 +1523,9 @@ static int indx_add_allocate(struct ntfs_index *indx, struct ntfs_inode *ni,
if (bmp) {
/* Increase bitmap. */
err = attr_set_size(ni, ATTR_BITMAP, in->name, in->name_len,
- &indx->bitmap_run, bitmap_size(bit + 1),
- NULL, true, NULL);
+ &indx->bitmap_run,
+ ntfs3_bitmap_size(bit + 1), NULL, true,
+ NULL);
if (err)
goto out1;
}
@@ -2087,7 +2088,7 @@ static int indx_shrink(struct ntfs_index *indx, struct ntfs_inode *ni,
if (err)
return err;

- bpb = bitmap_size(bit);
+ bpb = ntfs3_bitmap_size(bit);
if (bpb * 8 == nbits)
return 0;

diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index e67bef401807..b4c09b99edd1 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -950,9 +950,9 @@ static inline bool run_is_empty(struct runs_tree *run)
}

/* NTFS uses quad aligned bitmaps. */
-static inline size_t bitmap_size(size_t bits)
+static inline size_t ntfs3_bitmap_size(size_t bits)
{
- return ALIGN((bits + 7) >> 3, 8);
+ return BITS_TO_U64(bits) * sizeof(u64);
}

#define _100ns2seconds 10000000
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index 0a71075042bb..2ce26062e55e 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -1103,7 +1103,7 @@ static int ntfs_fill_super(struct super_block *sb, struct fs_context *fc)

/* Check bitmap boundary. */
tt = sbi->used.bitmap.nbits;
- if (inode->i_size < bitmap_size(tt)) {
+ if (inode->i_size < ntfs3_bitmap_size(tt)) {
err = -EINVAL;
goto put_inode_out;
}
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index edb414d3fd16..3b62fbcefa8c 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -995,9 +995,8 @@ struct dquot *dqget(struct super_block *sb, struct kqid qid)
* smp_mb__before_atomic() in dquot_acquire().
*/
smp_rmb();
-#ifdef CONFIG_QUOTA_DEBUG
- BUG_ON(!dquot->dq_sb); /* Has somebody invalidated entry under us? */
-#endif
+ /* Has somebody invalidated entry under us? */
+ WARN_ON_ONCE(hlist_unhashed(&dquot->dq_hash));
out:
if (empty)
do_destroy_dquot(empty);
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 37f36dad18bd..ce03547d69f4 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -236,22 +236,24 @@ extern int bitmap_print_list_to_buf(char *buf, const unsigned long *maskp,
#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))
#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))

+#define bitmap_size(nbits) (ALIGN(nbits, BITS_PER_LONG) / BITS_PER_BYTE)
+
static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)
{
- unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+ unsigned int len = bitmap_size(nbits);
memset(dst, 0, len);
}

static inline void bitmap_fill(unsigned long *dst, unsigned int nbits)
{
- unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+ unsigned int len = bitmap_size(nbits);
memset(dst, 0xff, len);
}

static inline void bitmap_copy(unsigned long *dst, const unsigned long *src,
unsigned int nbits)
{
- unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+ unsigned int len = bitmap_size(nbits);
memcpy(dst, src, len);
}

@@ -266,6 +268,18 @@ static inline void bitmap_copy_clear_tail(unsigned long *dst,
dst[nbits / BITS_PER_LONG] &= BITMAP_LAST_WORD_MASK(nbits);
}

+static inline void bitmap_copy_and_extend(unsigned long *to,
+ const unsigned long *from,
+ unsigned int count, unsigned int size)
+{
+ unsigned int copy = BITS_TO_LONGS(count);
+
+ memcpy(to, from, copy * sizeof(long));
+ if (count % BITS_PER_LONG)
+ to[copy - 1] &= BITMAP_LAST_WORD_MASK(count);
+ memset(to + copy, 0, bitmap_size(size) - copy * sizeof(long));
+}
+
/*
* On 32-bit systems bitmaps are represented as u32 arrays internally, and
* therefore conversion is not needed when copying data from/to arrays of u32.
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 905844172cfd..c6d57814988d 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -235,7 +235,7 @@ struct request {
void *end_io_data;
};

-static inline int blk_validate_block_size(unsigned int bsize)
+static inline int blk_validate_block_size(unsigned long bsize)
{
if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
return -EINVAL;
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index b3c230dea071..4555a4cb4632 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -667,7 +667,7 @@ static inline int cpulist_parse(const char *buf, struct cpumask *dstp)
*/
static inline unsigned int cpumask_size(void)
{
- return BITS_TO_LONGS(nr_cpumask_bits) * sizeof(long);
+ return bitmap_size(nr_cpumask_bits);
}

/*
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 61e86502fe65..27da89d0ed5a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2429,6 +2429,9 @@ static inline void kiocb_clone(struct kiocb *kiocb, struct kiocb *kiocb_src,
* Used to detect that mark_inode_dirty() should not move
* inode between dirty lists.
*
+ * I_LRU_ISOLATING Inode is pinned being isolated from LRU without holding
+ * i_count.
+ *
* Q: What is the difference between I_WILL_FREE and I_FREEING?
*/
#define I_DIRTY_SYNC (1 << 0)
@@ -2451,6 +2454,8 @@ static inline void kiocb_clone(struct kiocb *kiocb, struct kiocb *kiocb_src,
#define I_CREATING (1 << 15)
#define I_DONTCACHE (1 << 16)
#define I_SYNC_QUEUED (1 << 17)
+#define __I_LRU_ISOLATING 19
+#define I_LRU_ISOLATING (1 << __I_LRU_ISOLATING)

#define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
#define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)
diff --git a/include/linux/pm.h b/include/linux/pm.h
index d1c19f5b1380..b8578e1f7c11 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -8,6 +8,7 @@
#ifndef _LINUX_PM_H
#define _LINUX_PM_H

+#include <linux/export.h>
#include <linux/list.h>
#include <linux/workqueue.h>
#include <linux/spinlock.h>
@@ -357,13 +358,47 @@ struct dev_pm_ops {
#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn)
#endif

+#define _DEFINE_DEV_PM_OPS(name, \
+ suspend_fn, resume_fn, \
+ runtime_suspend_fn, runtime_resume_fn, idle_fn) \
+const struct dev_pm_ops name = { \
+ SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
+ RUNTIME_PM_OPS(runtime_suspend_fn, runtime_resume_fn, idle_fn) \
+}
+
+#ifdef CONFIG_PM
+#define _EXPORT_DEV_PM_OPS(name, suspend_fn, resume_fn, runtime_suspend_fn, \
+ runtime_resume_fn, idle_fn, sec) \
+ _DEFINE_DEV_PM_OPS(name, suspend_fn, resume_fn, runtime_suspend_fn, \
+ runtime_resume_fn, idle_fn); \
+ _EXPORT_SYMBOL(name, sec)
+#else
+#define _EXPORT_DEV_PM_OPS(name, suspend_fn, resume_fn, runtime_suspend_fn, \
+ runtime_resume_fn, idle_fn, sec) \
+static __maybe_unused _DEFINE_DEV_PM_OPS(__static_##name, suspend_fn, \
+ resume_fn, runtime_suspend_fn, \
+ runtime_resume_fn, idle_fn)
+#endif
+
/*
* Use this if you want to use the same suspend and resume callbacks for suspend
* to RAM and hibernation.
+ *
+ * If the underlying dev_pm_ops struct symbol has to be exported, use
+ * EXPORT_SIMPLE_DEV_PM_OPS() or EXPORT_GPL_SIMPLE_DEV_PM_OPS() instead.
*/
#define DEFINE_SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \
-const struct dev_pm_ops name = { \
- SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
+ _DEFINE_DEV_PM_OPS(name, suspend_fn, resume_fn, NULL, NULL, NULL)
+
+#define EXPORT_SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \
+ _EXPORT_DEV_PM_OPS(name, suspend_fn, resume_fn, NULL, NULL, NULL, "")
+#define EXPORT_GPL_SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \
+ _EXPORT_DEV_PM_OPS(name, suspend_fn, resume_fn, NULL, NULL, NULL, "_gpl")
+
+/* Deprecated. Use DEFINE_SIMPLE_DEV_PM_OPS() instead. */
+#define SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \
+const struct dev_pm_ops __maybe_unused name = { \
+ SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
}

/*
@@ -378,20 +413,10 @@ const struct dev_pm_ops name = { \
* suspend and "early" resume callback pointers, .suspend_late() and
* .resume_early(), to the same routines as .runtime_suspend() and
* .runtime_resume(), respectively (and analogously for hibernation).
+ *
+ * Deprecated. You most likely don't want this macro. Use
+ * DEFINE_RUNTIME_DEV_PM_OPS() instead.
*/
-#define DEFINE_UNIVERSAL_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
-static const struct dev_pm_ops name = { \
- SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
- RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
-}
-
-/* Deprecated. Use DEFINE_SIMPLE_DEV_PM_OPS() instead. */
-#define SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \
-const struct dev_pm_ops __maybe_unused name = { \
- SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
-}
-
-/* Deprecated. Use DEFINE_UNIVERSAL_DEV_PM_OPS() instead. */
#define UNIVERSAL_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
const struct dev_pm_ops __maybe_unused name = { \
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 7efb10518313..9a10b6bac4a7 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -22,6 +22,20 @@
usage_count */
#define RPM_AUTO 0x08 /* Use autosuspend_delay */

+/*
+ * Use this for defining a set of PM operations to be used in all situations
+ * (system suspend, hibernation or runtime PM).
+ *
+ * Note that the behaviour differs from the deprecated UNIVERSAL_DEV_PM_OPS()
+ * macro, which uses the provided callbacks for both runtime PM and system
+ * sleep, while DEFINE_RUNTIME_DEV_PM_OPS() uses pm_runtime_force_suspend()
+ * and pm_runtime_force_resume() for its system sleep callbacks.
+ */
+#define DEFINE_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
+ _DEFINE_DEV_PM_OPS(name, pm_runtime_force_suspend, \
+ pm_runtime_force_resume, suspend_fn, \
+ resume_fn, idle_fn)
+
#ifdef CONFIG_PM
extern struct workqueue_struct *pm_wq;

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 6e48c1c88f1b..57e0d9b7553b 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -409,7 +409,6 @@ struct svc_program {
const struct svc_version **pg_vers; /* version array */
char * pg_name; /* service name */
char * pg_class; /* class name: services sharing authentication */
- struct svc_stat * pg_stats; /* rpc statistics */
int (*pg_authenticate)(struct svc_rqst *);
__be32 (*pg_init_request)(struct svc_rqst *,
const struct svc_program *,
@@ -483,7 +482,9 @@ void svc_rqst_replace_page(struct svc_rqst *rqstp,
struct page *page);
void svc_rqst_free(struct svc_rqst *);
void svc_exit_thread(struct svc_rqst *);
-struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int,
+struct svc_serv * svc_create_pooled(struct svc_program *prog,
+ struct svc_stat *stats,
+ unsigned int bufsize,
int (*threadfn)(void *data));
int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
int svc_pool_stats_open(struct svc_serv *serv, struct file *file);
diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h
index 3459a04a3d61..2c37aa0a4ccb 100644
--- a/include/net/busy_poll.h
+++ b/include/net/busy_poll.h
@@ -63,7 +63,7 @@ static inline bool sk_can_busy_loop(struct sock *sk)
static inline unsigned long busy_loop_current_time(void)
{
#ifdef CONFIG_NET_RX_BUSY_POLL
- return (unsigned long)(local_clock() >> 10);
+ return (unsigned long)(ktime_get_ns() >> 10);
#else
return 0;
#endif
diff --git a/include/net/kcm.h b/include/net/kcm.h
index 2d704f8f4905..8e8252e08a9c 100644
--- a/include/net/kcm.h
+++ b/include/net/kcm.h
@@ -70,6 +70,7 @@ struct kcm_sock {
struct work_struct tx_work;
struct list_head wait_psock_list;
struct sk_buff *seq_skb;
+ struct mutex tx_mutex;
u32 tx_stopped : 1;

/* Don't use bit fields here, these are set under different locks */
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index e1180771604d..fb39edba3dea 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -247,7 +247,7 @@ static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)

static inline unsigned int scsi_logical_block_count(struct scsi_cmnd *scmd)
{
- unsigned int shift = ilog2(scmd->device->sector_size) - SECTOR_SHIFT;
+ unsigned int shift = ilog2(scmd->device->sector_size);

return blk_rq_bytes(scsi_cmd_to_rq(scmd)) >> shift;
}
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 82df5a07a869..d6e70aa7e151 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -22,6 +22,7 @@
* distribution for more details.
*/

+#include "cgroup-internal.h"
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/cpuset.h>
@@ -3780,10 +3781,14 @@ int proc_cpuset_show(struct seq_file *m, struct pid_namespace *ns,
if (!buf)
goto out;

- css = task_get_css(tsk, cpuset_cgrp_id);
- retval = cgroup_path_ns(css->cgroup, buf, PATH_MAX,
- current->nsproxy->cgroup_ns);
- css_put(css);
+ rcu_read_lock();
+ spin_lock_irq(&css_set_lock);
+ css = task_css(tsk, cpuset_cgrp_id);
+ retval = cgroup_path_ns_locked(css->cgroup, buf, PATH_MAX,
+ current->nsproxy->cgroup_ns);
+ spin_unlock_irq(&css_set_lock);
+ rcu_read_unlock();
+
if (retval >= PATH_MAX)
retval = -ENAMETOOLONG;
if (retval < 0)
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 3ccb383741d0..5aa8eec89e78 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -20,6 +20,16 @@
#include "tick-internal.h"
#include "timekeeping_internal.h"

+static noinline u64 cycles_to_nsec_safe(struct clocksource *cs, u64 start, u64 end)
+{
+ u64 delta = clocksource_delta(end, start, cs->mask);
+
+ if (likely(delta < cs->max_cycles))
+ return clocksource_cyc2ns(delta, cs->mult, cs->shift);
+
+ return mul_u64_u32_shr(delta, cs->mult, cs->shift);
+}
+
/**
* clocks_calc_mult_shift - calculate mult/shift factors for scaled math of clocks
* @mult: pointer to mult variable
@@ -213,8 +223,8 @@ enum wd_read_status {
static enum wd_read_status cs_watchdog_read(struct clocksource *cs, u64 *csnow, u64 *wdnow)
{
unsigned int nretries, max_retries;
- u64 wd_end, wd_end2, wd_delta;
int64_t wd_delay, wd_seq_delay;
+ u64 wd_end, wd_end2;

max_retries = clocksource_get_max_watchdog_retry();
for (nretries = 0; nretries <= max_retries; nretries++) {
@@ -225,9 +235,7 @@ static enum wd_read_status cs_watchdog_read(struct clocksource *cs, u64 *csnow,
wd_end2 = watchdog->read(watchdog);
local_irq_enable();

- wd_delta = clocksource_delta(wd_end, *wdnow, watchdog->mask);
- wd_delay = clocksource_cyc2ns(wd_delta, watchdog->mult,
- watchdog->shift);
+ wd_delay = cycles_to_nsec_safe(watchdog, *wdnow, wd_end);
if (wd_delay <= WATCHDOG_MAX_SKEW) {
if (nretries > 1 && nretries >= max_retries) {
pr_warn("timekeeping watchdog on CPU%d: %s retried %d times before success\n",
@@ -245,8 +253,7 @@ static enum wd_read_status cs_watchdog_read(struct clocksource *cs, u64 *csnow,
* report system busy, reinit the watchdog and skip the current
* watchdog test.
*/
- wd_delta = clocksource_delta(wd_end2, wd_end, watchdog->mask);
- wd_seq_delay = clocksource_cyc2ns(wd_delta, watchdog->mult, watchdog->shift);
+ wd_seq_delay = cycles_to_nsec_safe(watchdog, wd_end, wd_end2);
if (wd_seq_delay > WATCHDOG_MAX_SKEW/2)
goto skip_test;
}
@@ -357,8 +364,7 @@ void clocksource_verify_percpu(struct clocksource *cs)
delta = (csnow_end - csnow_mid) & cs->mask;
if (delta < 0)
cpumask_set_cpu(cpu, &cpus_ahead);
- delta = clocksource_delta(csnow_end, csnow_begin, cs->mask);
- cs_nsec = clocksource_cyc2ns(delta, cs->mult, cs->shift);
+ cs_nsec = cycles_to_nsec_safe(cs, csnow_begin, csnow_end);
if (cs_nsec > cs_nsec_max)
cs_nsec_max = cs_nsec;
if (cs_nsec < cs_nsec_min)
@@ -389,8 +395,8 @@ static inline void clocksource_reset_watchdog(void)

static void clocksource_watchdog(struct timer_list *unused)
{
- u64 csnow, wdnow, cslast, wdlast, delta;
int64_t wd_nsec, cs_nsec, interval;
+ u64 csnow, wdnow, cslast, wdlast;
int next_cpu, reset_pending;
struct clocksource *cs;
enum wd_read_status read_ret;
@@ -447,12 +453,8 @@ static void clocksource_watchdog(struct timer_list *unused)
continue;
}

- delta = clocksource_delta(wdnow, cs->wd_last, watchdog->mask);
- wd_nsec = clocksource_cyc2ns(delta, watchdog->mult,
- watchdog->shift);
-
- delta = clocksource_delta(csnow, cs->cs_last, cs->mask);
- cs_nsec = clocksource_cyc2ns(delta, cs->mult, cs->shift);
+ wd_nsec = cycles_to_nsec_safe(watchdog, cs->wd_last, wdnow);
+ cs_nsec = cycles_to_nsec_safe(cs, cs->cs_last, csnow);
wdlast = cs->wd_last; /* save these in case we print them */
cslast = cs->cs_last;
cs->cs_last = csnow;
@@ -815,7 +817,7 @@ void clocksource_start_suspend_timing(struct clocksource *cs, u64 start_cycles)
*/
u64 clocksource_stop_suspend_timing(struct clocksource *cs, u64 cycle_now)
{
- u64 now, delta, nsec = 0;
+ u64 now, nsec = 0;

if (!suspend_clocksource)
return 0;
@@ -830,12 +832,8 @@ u64 clocksource_stop_suspend_timing(struct clocksource *cs, u64 cycle_now)
else
now = suspend_clocksource->read(suspend_clocksource);

- if (now > suspend_start) {
- delta = clocksource_delta(now, suspend_start,
- suspend_clocksource->mask);
- nsec = mul_u64_u32_shr(delta, suspend_clocksource->mult,
- suspend_clocksource->shift);
- }
+ if (now > suspend_start)
+ nsec = cycles_to_nsec_safe(suspend_clocksource, suspend_start, now);

/*
* Disable the suspend timer to save power if current clocksource is
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 5502c687bd40..bdd9041d595e 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -1284,6 +1284,8 @@ void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,
struct hrtimer_clock_base *base;
unsigned long flags;

+ if (WARN_ON_ONCE(!timer->function))
+ return;
/*
* Check whether the HRTIMER_MODE_SOFT bit and hrtimer.is_soft
* match on CONFIG_PREEMPT_RT = n. With PREEMPT_RT check the hard
diff --git a/lib/math/prime_numbers.c b/lib/math/prime_numbers.c
index d42cebf7407f..d3b64b10da1c 100644
--- a/lib/math/prime_numbers.c
+++ b/lib/math/prime_numbers.c
@@ -6,8 +6,6 @@
#include <linux/prime_numbers.h>
#include <linux/slab.h>

-#define bitmap_size(nbits) (BITS_TO_LONGS(nbits) * sizeof(unsigned long))
-
struct primes {
struct rcu_head rcu;
unsigned long last, sz;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 98ff57c8eda6..9139da4baa39 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1437,7 +1437,7 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf)
vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd);
if (unlikely(!pmd_same(oldpmd, *vmf->pmd))) {
spin_unlock(vmf->ptl);
- goto out;
+ return 0;
}

pmd = pmd_modify(oldpmd, vma->vm_page_prot);
@@ -1465,23 +1465,16 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf)
if (migrated) {
flags |= TNF_MIGRATED;
page_nid = target_nid;
- } else {
- flags |= TNF_MIGRATE_FAIL;
- vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd);
- if (unlikely(!pmd_same(oldpmd, *vmf->pmd))) {
- spin_unlock(vmf->ptl);
- goto out;
- }
- goto out_map;
+ task_numa_fault(last_cpupid, page_nid, HPAGE_PMD_NR, flags);
+ return 0;
}

-out:
- if (page_nid != NUMA_NO_NODE)
- task_numa_fault(last_cpupid, page_nid, HPAGE_PMD_NR,
- flags);
-
- return 0;
-
+ flags |= TNF_MIGRATE_FAIL;
+ vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd);
+ if (unlikely(!pmd_same(oldpmd, *vmf->pmd))) {
+ spin_unlock(vmf->ptl);
+ return 0;
+ }
out_map:
/* Restore the PMD */
pmd = pmd_modify(oldpmd, vma->vm_page_prot);
@@ -1491,7 +1484,10 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf)
set_pmd_at(vma->vm_mm, haddr, vmf->pmd, pmd);
update_mmu_cache_pmd(vma, vmf->address, vmf->pmd);
spin_unlock(vmf->ptl);
- goto out;
+
+ if (page_nid != NUMA_NO_NODE)
+ task_numa_fault(last_cpupid, page_nid, HPAGE_PMD_NR, flags);
+ return 0;
}

/*
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 6f969ba0d688..69dd12a79942 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4807,9 +4807,12 @@ static ssize_t memcg_write_event_control(struct kernfs_open_file *of,
buf = endp + 1;

cfd = simple_strtoul(buf, &endp, 10);
- if ((*endp != ' ') && (*endp != '\0'))
+ if (*endp == '\0')
+ buf = endp;
+ else if (*endp == ' ')
+ buf = endp + 1;
+ else
return -EINVAL;
- buf = endp + 1;

event = kzalloc(sizeof(*event), GFP_KERNEL);
if (!event)
diff --git a/mm/memory.c b/mm/memory.c
index 99d15abe4a06..4d6eda1cdb6d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4407,7 +4407,7 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf)
spin_lock(vmf->ptl);
if (unlikely(!pte_same(*vmf->pte, vmf->orig_pte))) {
pte_unmap_unlock(vmf->pte, vmf->ptl);
- goto out;
+ return 0;
}

/* Get the normal PTE */
@@ -4454,21 +4454,17 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf)
if (migrate_misplaced_page(page, vma, target_nid)) {
page_nid = target_nid;
flags |= TNF_MIGRATED;
- } else {
- flags |= TNF_MIGRATE_FAIL;
- vmf->pte = pte_offset_map(vmf->pmd, vmf->address);
- spin_lock(vmf->ptl);
- if (unlikely(!pte_same(*vmf->pte, vmf->orig_pte))) {
- pte_unmap_unlock(vmf->pte, vmf->ptl);
- goto out;
- }
- goto out_map;
+ task_numa_fault(last_cpupid, page_nid, 1, flags);
+ return 0;
}

-out:
- if (page_nid != NUMA_NO_NODE)
- task_numa_fault(last_cpupid, page_nid, 1, flags);
- return 0;
+ flags |= TNF_MIGRATE_FAIL;
+ vmf->pte = pte_offset_map(vmf->pmd, vmf->address);
+ spin_lock(vmf->ptl);
+ if (unlikely(!pte_same(*vmf->pte, vmf->orig_pte))) {
+ pte_unmap_unlock(vmf->pte, vmf->ptl);
+ return 0;
+ }
out_map:
/*
* Make it present again, depending on how arch implements
@@ -4482,7 +4478,10 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf)
ptep_modify_prot_commit(vma, vmf->address, vmf->pte, old_pte, pte);
update_mmu_cache(vma, vmf->address, vmf->pte);
pte_unmap_unlock(vmf->pte, vmf->ptl);
- goto out;
+
+ if (page_nid != NUMA_NO_NODE)
+ task_numa_fault(last_cpupid, page_nid, 1, flags);
+ return 0;
}

static inline vm_fault_t create_huge_pmd(struct vm_fault *vmf)
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index a796d72c7dba..8bb6c8ad1131 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -385,7 +385,8 @@ static int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)

case BNEP_COMPRESSED_DST_ONLY:
__skb_put_data(nskb, skb_mac_header(skb), ETH_ALEN);
- __skb_put_data(nskb, s->eh.h_source, ETH_ALEN + 2);
+ __skb_put_data(nskb, s->eh.h_source, ETH_ALEN);
+ put_unaligned(s->eh.h_proto, (__be16 *)__skb_put(nskb, 2));
break;

case BNEP_GENERAL:
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index fc4e02b3f26a..7dff3f1a2a9e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -4876,19 +4876,19 @@ static void hci_sched_le(struct hci_dev *hdev)
{
struct hci_chan *chan;
struct sk_buff *skb;
- int quote, cnt, tmp;
+ int quote, *cnt, tmp;

BT_DBG("%s", hdev->name);

if (!hci_conn_num(hdev, LE_LINK))
return;

- cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt;
+ cnt = hdev->le_pkts ? &hdev->le_cnt : &hdev->acl_cnt;

- __check_timeout(hdev, cnt, LE_LINK);
+ __check_timeout(hdev, *cnt, LE_LINK);

- tmp = cnt;
- while (cnt && (chan = hci_chan_sent(hdev, LE_LINK, &quote))) {
+ tmp = *cnt;
+ while (*cnt && (chan = hci_chan_sent(hdev, LE_LINK, &quote))) {
u32 priority = (skb_peek(&chan->data_q))->priority;
while (quote-- && (skb = skb_peek(&chan->data_q))) {
BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
@@ -4903,7 +4903,7 @@ static void hci_sched_le(struct hci_dev *hdev)
hci_send_frame(hdev, skb);
hdev->le_last_tx = jiffies;

- cnt--;
+ (*cnt)--;
chan->sent++;
chan->conn->sent++;

@@ -4913,12 +4913,7 @@ static void hci_sched_le(struct hci_dev *hdev)
}
}

- if (hdev->le_pkts)
- hdev->le_cnt = cnt;
- else
- hdev->acl_cnt = cnt;
-
- if (cnt != tmp)
+ if (*cnt != tmp)
hci_prio_recalculate(hdev, LE_LINK);
}

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 8f1162961836..f59775973cdf 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2967,6 +2967,10 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
* will be kept and this function does nothing.
*/
p = hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
+ if (!p) {
+ err = -EIO;
+ goto unlock;
+ }

if (p->auto_connect == HCI_AUTO_CONN_EXPLICIT)
p->auto_connect = HCI_AUTO_CONN_DISABLED;
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index f688f941c40c..629d25bc7f67 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -913,7 +913,7 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
* Confirms and the responder Enters the passkey.
*/
if (smp->method == OVERLAP) {
- if (hcon->role == HCI_ROLE_MASTER)
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
smp->method = CFM_PASSKEY;
else
smp->method = REQ_PASSKEY;
@@ -963,7 +963,7 @@ static u8 smp_confirm(struct smp_chan *smp)

smp_send_cmd(smp->conn, SMP_CMD_PAIRING_CONFIRM, sizeof(cp), &cp);

- if (conn->hcon->out)
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_CONFIRM);
else
SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RANDOM);
@@ -979,7 +979,8 @@ static u8 smp_random(struct smp_chan *smp)
int ret;

bt_dev_dbg(conn->hcon->hdev, "conn %p %s", conn,
- conn->hcon->out ? "initiator" : "responder");
+ test_bit(SMP_FLAG_INITIATOR, &smp->flags) ? "initiator" :
+ "responder");

ret = smp_c1(smp->tk, smp->rrnd, smp->preq, smp->prsp,
hcon->init_addr_type, &hcon->init_addr,
@@ -993,7 +994,7 @@ static u8 smp_random(struct smp_chan *smp)
return SMP_CONFIRM_FAILED;
}

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
u8 stk[16];
__le64 rand = 0;
__le16 ediv = 0;
@@ -1250,14 +1251,15 @@ static void smp_distribute_keys(struct smp_chan *smp)
rsp = (void *) &smp->prsp[1];

/* The responder sends its keys first */
- if (hcon->out && (smp->remote_key_dist & KEY_DIST_MASK)) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags) &&
+ (smp->remote_key_dist & KEY_DIST_MASK)) {
smp_allow_key_dist(smp);
return;
}

req = (void *) &smp->preq[1];

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
keydist = &rsp->init_key_dist;
*keydist &= req->init_key_dist;
} else {
@@ -1426,7 +1428,7 @@ static int sc_mackey_and_ltk(struct smp_chan *smp, u8 mackey[16], u8 ltk[16])
struct hci_conn *hcon = smp->conn->hcon;
u8 *na, *nb, a[7], b[7];

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
na = smp->prnd;
nb = smp->rrnd;
} else {
@@ -1454,7 +1456,7 @@ static void sc_dhkey_check(struct smp_chan *smp)
a[6] = hcon->init_addr_type;
b[6] = hcon->resp_addr_type;

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
local_addr = a;
remote_addr = b;
memcpy(io_cap, &smp->preq[1], 3);
@@ -1533,7 +1535,7 @@ static u8 sc_passkey_round(struct smp_chan *smp, u8 smp_op)
/* The round is only complete when the initiator
* receives pairing random.
*/
- if (!hcon->out) {
+ if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM,
sizeof(smp->prnd), smp->prnd);
if (smp->passkey_round == 20)
@@ -1561,7 +1563,7 @@ static u8 sc_passkey_round(struct smp_chan *smp, u8 smp_op)

SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RANDOM);

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM,
sizeof(smp->prnd), smp->prnd);
return 0;
@@ -1572,7 +1574,7 @@ static u8 sc_passkey_round(struct smp_chan *smp, u8 smp_op)
case SMP_CMD_PUBLIC_KEY:
default:
/* Initiating device starts the round */
- if (!hcon->out)
+ if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags))
return 0;

bt_dev_dbg(hdev, "Starting passkey round %u",
@@ -1617,7 +1619,7 @@ static int sc_user_reply(struct smp_chan *smp, u16 mgmt_op, __le32 passkey)
}

/* Initiator sends DHKey check first */
- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
sc_dhkey_check(smp);
SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
} else if (test_and_clear_bit(SMP_FLAG_DHKEY_PENDING, &smp->flags)) {
@@ -1740,7 +1742,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
struct smp_cmd_pairing rsp, *req = (void *) skb->data;
struct l2cap_chan *chan = conn->smp;
struct hci_dev *hdev = conn->hcon->hdev;
- struct smp_chan *smp;
+ struct smp_chan *smp = chan->data;
u8 key_size, auth, sec_level;
int ret;

@@ -1749,16 +1751,14 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
if (skb->len < sizeof(*req))
return SMP_INVALID_PARAMS;

- if (conn->hcon->role != HCI_ROLE_SLAVE)
+ if (smp && test_bit(SMP_FLAG_INITIATOR, &smp->flags))
return SMP_CMD_NOTSUPP;

- if (!chan->data)
+ if (!smp) {
smp = smp_chan_create(conn);
- else
- smp = chan->data;
-
- if (!smp)
- return SMP_UNSPECIFIED;
+ if (!smp)
+ return SMP_UNSPECIFIED;
+ }

/* We didn't start the pairing, so match remote */
auth = req->auth_req & AUTH_REQ_MASK(hdev);
@@ -1940,7 +1940,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
if (skb->len < sizeof(*rsp))
return SMP_INVALID_PARAMS;

- if (conn->hcon->role != HCI_ROLE_MASTER)
+ if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags))
return SMP_CMD_NOTSUPP;

skb_pull(skb, sizeof(*rsp));
@@ -2035,7 +2035,7 @@ static u8 sc_check_confirm(struct smp_chan *smp)
if (smp->method == REQ_PASSKEY || smp->method == DSP_PASSKEY)
return sc_passkey_round(smp, SMP_CMD_PAIRING_CONFIRM);

- if (conn->hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd),
smp->prnd);
SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RANDOM);
@@ -2057,7 +2057,7 @@ static int fixup_sc_false_positive(struct smp_chan *smp)
u8 auth;

/* The issue is only observed when we're in responder role */
- if (hcon->out)
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
return SMP_UNSPECIFIED;

if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
@@ -2093,7 +2093,8 @@ static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb)
struct hci_dev *hdev = hcon->hdev;

bt_dev_dbg(hdev, "conn %p %s", conn,
- hcon->out ? "initiator" : "responder");
+ test_bit(SMP_FLAG_INITIATOR, &smp->flags) ? "initiator" :
+ "responder");

if (skb->len < sizeof(smp->pcnf))
return SMP_INVALID_PARAMS;
@@ -2115,7 +2116,7 @@ static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb)
return ret;
}

- if (conn->hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd),
smp->prnd);
SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RANDOM);
@@ -2150,7 +2151,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
if (!test_bit(SMP_FLAG_SC, &smp->flags))
return smp_random(smp);

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
pkax = smp->local_pk;
pkbx = smp->remote_pk;
na = smp->prnd;
@@ -2163,7 +2164,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
}

if (smp->method == REQ_OOB) {
- if (!hcon->out)
+ if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags))
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM,
sizeof(smp->prnd), smp->prnd);
SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
@@ -2174,7 +2175,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
if (smp->method == REQ_PASSKEY || smp->method == DSP_PASSKEY)
return sc_passkey_round(smp, SMP_CMD_PAIRING_RANDOM);

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
u8 cfm[16];

err = smp_f4(smp->tfm_cmac, smp->remote_pk, smp->local_pk,
@@ -2215,7 +2216,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
return SMP_UNSPECIFIED;

if (smp->method == REQ_OOB) {
- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
sc_dhkey_check(smp);
SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
}
@@ -2289,10 +2290,27 @@ bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level,
return false;
}

+static void smp_send_pairing_req(struct smp_chan *smp, __u8 auth)
+{
+ struct smp_cmd_pairing cp;
+
+ if (smp->conn->hcon->type == ACL_LINK)
+ build_bredr_pairing_cmd(smp, &cp, NULL);
+ else
+ build_pairing_cmd(smp->conn, &cp, NULL, auth);
+
+ smp->preq[0] = SMP_CMD_PAIRING_REQ;
+ memcpy(&smp->preq[1], &cp, sizeof(cp));
+
+ smp_send_cmd(smp->conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
+ SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RSP);
+
+ set_bit(SMP_FLAG_INITIATOR, &smp->flags);
+}
+
static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct smp_cmd_security_req *rp = (void *) skb->data;
- struct smp_cmd_pairing cp;
struct hci_conn *hcon = conn->hcon;
struct hci_dev *hdev = hcon->hdev;
struct smp_chan *smp;
@@ -2341,16 +2359,20 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)

skb_pull(skb, sizeof(*rp));

- memset(&cp, 0, sizeof(cp));
- build_pairing_cmd(conn, &cp, NULL, auth);
+ smp_send_pairing_req(smp, auth);

- smp->preq[0] = SMP_CMD_PAIRING_REQ;
- memcpy(&smp->preq[1], &cp, sizeof(cp));
+ return 0;
+}

- smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
- SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RSP);
+static void smp_send_security_req(struct smp_chan *smp, __u8 auth)
+{
+ struct smp_cmd_security_req cp;

- return 0;
+ cp.auth_req = auth;
+ smp_send_cmd(smp->conn, SMP_CMD_SECURITY_REQ, sizeof(cp), &cp);
+ SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_REQ);
+
+ clear_bit(SMP_FLAG_INITIATOR, &smp->flags);
}

int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
@@ -2421,23 +2443,11 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
authreq |= SMP_AUTH_MITM;
}

- if (hcon->role == HCI_ROLE_MASTER) {
- struct smp_cmd_pairing cp;
-
- build_pairing_cmd(conn, &cp, NULL, authreq);
- smp->preq[0] = SMP_CMD_PAIRING_REQ;
- memcpy(&smp->preq[1], &cp, sizeof(cp));
-
- smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
- SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RSP);
- } else {
- struct smp_cmd_security_req cp;
- cp.auth_req = authreq;
- smp_send_cmd(conn, SMP_CMD_SECURITY_REQ, sizeof(cp), &cp);
- SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_REQ);
- }
+ if (hcon->role == HCI_ROLE_MASTER)
+ smp_send_pairing_req(smp, authreq);
+ else
+ smp_send_security_req(smp, authreq);

- set_bit(SMP_FLAG_INITIATOR, &smp->flags);
ret = 0;

unlock:
@@ -2688,8 +2698,6 @@ static int smp_cmd_sign_info(struct l2cap_conn *conn, struct sk_buff *skb)

static u8 sc_select_method(struct smp_chan *smp)
{
- struct l2cap_conn *conn = smp->conn;
- struct hci_conn *hcon = conn->hcon;
struct smp_cmd_pairing *local, *remote;
u8 local_mitm, remote_mitm, local_io, remote_io, method;

@@ -2702,7 +2710,7 @@ static u8 sc_select_method(struct smp_chan *smp)
* the "struct smp_cmd_pairing" from them we need to skip the
* first byte which contains the opcode.
*/
- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
local = (void *) &smp->preq[1];
remote = (void *) &smp->prsp[1];
} else {
@@ -2771,7 +2779,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
/* Non-initiating device sends its public key after receiving
* the key from the initiating device.
*/
- if (!hcon->out) {
+ if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
err = sc_send_public_key(smp);
if (err)
return err;
@@ -2833,7 +2841,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
}

if (smp->method == REQ_OOB) {
- if (hcon->out)
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM,
sizeof(smp->prnd), smp->prnd);

@@ -2842,7 +2850,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
return 0;
}

- if (hcon->out)
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_CONFIRM);

if (smp->method == REQ_PASSKEY) {
@@ -2857,7 +2865,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
/* The Initiating device waits for the non-initiating device to
* send the confirm value.
*/
- if (conn->hcon->out)
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags))
return 0;

err = smp_f4(smp->tfm_cmac, smp->local_pk, smp->remote_pk, smp->prnd,
@@ -2891,7 +2899,7 @@ static int smp_cmd_dhkey_check(struct l2cap_conn *conn, struct sk_buff *skb)
a[6] = hcon->init_addr_type;
b[6] = hcon->resp_addr_type;

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
local_addr = a;
remote_addr = b;
memcpy(io_cap, &smp->prsp[1], 3);
@@ -2916,7 +2924,7 @@ static int smp_cmd_dhkey_check(struct l2cap_conn *conn, struct sk_buff *skb)
if (crypto_memneq(check->e, e, 16))
return SMP_DHKEY_CHECK_FAILED;

- if (!hcon->out) {
+ if (!test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
if (test_bit(SMP_FLAG_WAIT_USER, &smp->flags)) {
set_bit(SMP_FLAG_DHKEY_PENDING, &smp->flags);
return 0;
@@ -2928,7 +2936,7 @@ static int smp_cmd_dhkey_check(struct l2cap_conn *conn, struct sk_buff *skb)

sc_add_ltk(smp);

- if (hcon->out) {
+ if (test_bit(SMP_FLAG_INITIATOR, &smp->flags)) {
hci_le_start_enc(hcon, 0, 0, smp->tk, smp->enc_key_size);
hcon->enc_key_size = smp->enc_key_size;
}
@@ -3077,7 +3085,6 @@ static void bredr_pairing(struct l2cap_chan *chan)
struct l2cap_conn *conn = chan->conn;
struct hci_conn *hcon = conn->hcon;
struct hci_dev *hdev = hcon->hdev;
- struct smp_cmd_pairing req;
struct smp_chan *smp;

bt_dev_dbg(hdev, "chan %p", chan);
@@ -3129,14 +3136,7 @@ static void bredr_pairing(struct l2cap_chan *chan)

bt_dev_dbg(hdev, "starting SMP over BR/EDR");

- /* Prepare and send the BR/EDR SMP Pairing Request */
- build_bredr_pairing_cmd(smp, &req, NULL);
-
- smp->preq[0] = SMP_CMD_PAIRING_REQ;
- memcpy(&smp->preq[1], &req, sizeof(req));
-
- smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(req), &req);
- SMP_ALLOW_CMD(smp, SMP_CMD_PAIRING_RSP);
+ smp_send_pairing_req(smp, 0x00);
}

static void smp_resume_cb(struct l2cap_chan *chan)
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index 9981e0dfdd4d..d0d41dbbfe38 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -602,8 +602,12 @@ static unsigned int br_nf_local_in(void *priv,
if (likely(nf_ct_is_confirmed(ct)))
return NF_ACCEPT;

+ if (WARN_ON_ONCE(refcount_read(&nfct->use) != 1)) {
+ nf_reset_ct(skb);
+ return NF_ACCEPT;
+ }
+
WARN_ON_ONCE(skb_shared(skb));
- WARN_ON_ONCE(refcount_read(&nfct->use) != 1);

/* We can't call nf_confirm here, it would create a dependency
* on nf_conntrack module.
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index e9ea0695efb4..173ea92124f8 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -214,7 +214,7 @@ static ssize_t speed_show(struct device *dev,
if (!rtnl_trylock())
return restart_syscall();

- if (netif_running(netdev) && netif_device_present(netdev)) {
+ if (netif_running(netdev)) {
struct ethtool_link_ksettings cmd;

if (!__ethtool_get_link_ksettings(netdev, &cmd))
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index 53e2ef6ada8f..1e9e70a633d1 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -433,6 +433,9 @@ int __ethtool_get_link_ksettings(struct net_device *dev,
if (!dev->ethtool_ops->get_link_ksettings)
return -EOPNOTSUPP;

+ if (!netif_device_present(dev))
+ return -ENODEV;
+
memset(link_ksettings, 0, sizeof(*link_ksettings));
return dev->ethtool_ops->get_link_ksettings(dev, link_ksettings);
}
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index ce37c8345579..b37121f872bc 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -69,11 +69,15 @@ static int ip6_finish_output2(struct net *net, struct sock *sk, struct sk_buff *

/* Be paranoid, rather than too clever. */
if (unlikely(hh_len > skb_headroom(skb)) && dev->header_ops) {
+ /* Make sure idev stays alive */
+ rcu_read_lock();
skb = skb_expand_head(skb, hh_len);
if (!skb) {
IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);
+ rcu_read_unlock();
return -ENOMEM;
}
+ rcu_read_unlock();
}

hdr = ipv6_hdr(skb);
@@ -269,11 +273,15 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
head_room += opt->opt_nflen + opt->opt_flen;

if (unlikely(head_room > skb_headroom(skb))) {
+ /* Make sure idev stays alive */
+ rcu_read_lock();
skb = skb_expand_head(skb, head_room);
if (!skb) {
IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);
+ rcu_read_unlock();
return -ENOBUFS;
}
+ rcu_read_unlock();
}

if (opt) {
@@ -1940,6 +1948,7 @@ int ip6_send_skb(struct sk_buff *skb)
struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
int err;

+ rcu_read_lock();
err = ip6_local_out(net, skb->sk, skb);
if (err) {
if (err > 0)
@@ -1949,6 +1958,7 @@ int ip6_send_skb(struct sk_buff *skb)
IPSTATS_MIB_OUTDISCARDS);
}

+ rcu_read_unlock();
return err;
}

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index d370a71c9752..5955fca601b3 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1501,7 +1501,8 @@ static void ip6_tnl_link_config(struct ip6_tnl *t)
tdev = __dev_get_by_index(t->net, p->link);

if (tdev) {
- dev->hard_header_len = tdev->hard_header_len + t_hlen;
+ dev->needed_headroom = tdev->hard_header_len +
+ tdev->needed_headroom + t_hlen;
mtu = min_t(unsigned int, tdev->mtu, IP6_MAX_MTU);

mtu = mtu - t_hlen;
@@ -1729,7 +1730,9 @@ ip6_tnl_siocdevprivate(struct net_device *dev, struct ifreq *ifr,
int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
{
struct ip6_tnl *tnl = netdev_priv(dev);
+ int t_hlen;

+ t_hlen = tnl->hlen + sizeof(struct ipv6hdr);
if (tnl->parms.proto == IPPROTO_IPV6) {
if (new_mtu < IPV6_MIN_MTU)
return -EINVAL;
@@ -1738,10 +1741,10 @@ int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
return -EINVAL;
}
if (tnl->parms.proto == IPPROTO_IPV6 || tnl->parms.proto == 0) {
- if (new_mtu > IP6_MAX_MTU - dev->hard_header_len)
+ if (new_mtu > IP6_MAX_MTU - dev->hard_header_len - t_hlen)
return -EINVAL;
} else {
- if (new_mtu > IP_MAX_MTU - dev->hard_header_len)
+ if (new_mtu > IP_MAX_MTU - dev->hard_header_len - t_hlen)
return -EINVAL;
}
dev->mtu = new_mtu;
@@ -1887,12 +1890,11 @@ ip6_tnl_dev_init_gen(struct net_device *dev)
t_hlen = t->hlen + sizeof(struct ipv6hdr);

dev->type = ARPHRD_TUNNEL6;
- dev->hard_header_len = LL_MAX_HEADER + t_hlen;
dev->mtu = ETH_DATA_LEN - t_hlen;
if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
dev->mtu -= 8;
dev->min_mtu = ETH_MIN_MTU;
- dev->max_mtu = IP6_MAX_MTU - dev->hard_header_len;
+ dev->max_mtu = IP6_MAX_MTU - dev->hard_header_len - t_hlen;

dev_hold(dev);
return 0;
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 5c47be29b9ee..2e5b090d7c89 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -155,6 +155,10 @@ static struct frag_queue *fq_find(struct net *net, __be32 id, u32 user,
};
struct inet_frag_queue *q;

+ if (!(ipv6_addr_type(&hdr->daddr) & (IPV6_ADDR_MULTICAST |
+ IPV6_ADDR_LINKLOCAL)))
+ key.iif = 0;
+
q = inet_frag_find(nf_frag->fqdir, &key);
if (!q)
return NULL;
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 30fc78236050..1a88ed72a7a9 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -1090,8 +1090,7 @@ static int iucv_message_receive_iprmdata(struct iucv_path *path,
size = (size < 8) ? size : 8;
for (array = buffer; size > 0; array++) {
copy = min_t(size_t, size, array->length);
- memcpy((u8 *)(addr_t) array->address,
- rmmsg, copy);
+ memcpy(phys_to_virt(array->address), rmmsg, copy);
rmmsg += copy;
size -= copy;
}
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index 5457ca190980..a3b281f7a99b 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -911,6 +911,7 @@ static int kcm_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
!(msg->msg_flags & MSG_MORE) : !!(msg->msg_flags & MSG_EOR);
int err = -EPIPE;

+ mutex_lock(&kcm->tx_mutex);
lock_sock(sk);

/* Per tcp_sendmsg this should be in poll */
@@ -1059,6 +1060,7 @@ static int kcm_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
KCM_STATS_ADD(kcm->stats.tx_bytes, copied);

release_sock(sk);
+ mutex_unlock(&kcm->tx_mutex);
return copied;

out_error:
@@ -1084,6 +1086,7 @@ static int kcm_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
sk->sk_write_space(sk);

release_sock(sk);
+ mutex_unlock(&kcm->tx_mutex);
return err;
}

@@ -1326,6 +1329,7 @@ static void init_kcm_sock(struct kcm_sock *kcm, struct kcm_mux *mux)
spin_unlock_bh(&mux->lock);

INIT_WORK(&kcm->tx_work, kcm_tx_work);
+ mutex_init(&kcm->tx_mutex);

spin_lock_bh(&mux->rx_lock);
kcm_rcv_ready(kcm);
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index a4d3fa14f76b..1deb3d874a4b 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -491,7 +491,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
{
struct tid_ampdu_tx *tid_tx;
struct ieee80211_local *local = sta->local;
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
struct ieee80211_ampdu_params params = {
.sta = &sta->sta,
.action = IEEE80211_AMPDU_TX_START,
@@ -521,7 +521,6 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
*/
synchronize_net();

- sdata = sta->sdata;
params.ssn = sta->tid_seq[tid] >> 4;
ret = drv_ampdu_action(local, sdata, &params);
tid_tx->ssn = params.ssn;
@@ -535,9 +534,6 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
*/
set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state);
} else if (ret) {
- if (!sdata)
- return;
-
ht_dbg(sdata,
"BA request denied - HW unavailable for %pM tid %d\n",
sta->sta.addr, tid);
diff --git a/net/mac80211/driver-ops.c b/net/mac80211/driver-ops.c
index 120bd9cdf7df..48322e45e7dd 100644
--- a/net/mac80211/driver-ops.c
+++ b/net/mac80211/driver-ops.c
@@ -331,9 +331,6 @@ int drv_ampdu_action(struct ieee80211_local *local,

might_sleep();

- if (!sdata)
- return -EIO;
-
sdata = get_bss_sdata(sdata);
if (!check_sdata_in_driver(sdata))
return -EIO;
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 6d2b42cb3ad5..d1460b870ed5 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1060,6 +1060,20 @@ static void __sta_info_destroy_part2(struct sta_info *sta)
* after _part1 and before _part2!
*/

+ /*
+ * There's a potential race in _part1 where we set WLAN_STA_BLOCK_BA
+ * but someone might have just gotten past a check, and not yet into
+ * queuing the work/creating the data/etc.
+ *
+ * Do another round of destruction so that the worker is certainly
+ * canceled before we later free the station.
+ *
+ * Since this is after synchronize_rcu()/synchronize_net() we're now
+ * certain that nobody can actually hold a reference to the STA and
+ * be calling e.g. ieee80211_start_tx_ba_session().
+ */
+ ieee80211_sta_tear_down_BA_sessions(sta, AGG_STOP_DESTROY_STA);
+
might_sleep();
lockdep_assert_held(&local->sta_mtx);

diff --git a/net/mptcp/diag.c b/net/mptcp/diag.c
index d7ca71c59754..23bd18084c8a 100644
--- a/net/mptcp/diag.c
+++ b/net/mptcp/diag.c
@@ -95,7 +95,7 @@ static size_t subflow_get_info_size(const struct sock *sk)
nla_total_size(4) + /* MPTCP_SUBFLOW_ATTR_RELWRITE_SEQ */
nla_total_size_64bit(8) + /* MPTCP_SUBFLOW_ATTR_MAP_SEQ */
nla_total_size(4) + /* MPTCP_SUBFLOW_ATTR_MAP_SFSEQ */
- nla_total_size(2) + /* MPTCP_SUBFLOW_ATTR_SSN_OFFSET */
+ nla_total_size(4) + /* MPTCP_SUBFLOW_ATTR_SSN_OFFSET */
nla_total_size(2) + /* MPTCP_SUBFLOW_ATTR_MAP_DATALEN */
nla_total_size(4) + /* MPTCP_SUBFLOW_ATTR_FLAGS */
nla_total_size(1) + /* MPTCP_SUBFLOW_ATTR_ID_REM */
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 9273316cdbde..148da412ee76 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2213,7 +2213,7 @@ static struct sock *mptcp_subflow_get_retrans(struct mptcp_sock *msk)
continue;
}

- if (subflow->backup) {
+ if (subflow->backup || subflow->request_bkup) {
if (!backup)
backup = ssk;
continue;
diff --git a/net/netfilter/nf_flow_table_inet.c b/net/netfilter/nf_flow_table_inet.c
index 6783ea220f8f..7f746acb4b02 100644
--- a/net/netfilter/nf_flow_table_inet.c
+++ b/net/netfilter/nf_flow_table_inet.c
@@ -17,6 +17,9 @@ nf_flow_offload_inet_hook(void *priv, struct sk_buff *skb,

switch (skb->protocol) {
case htons(ETH_P_8021Q):
+ if (!pskb_may_pull(skb, skb_mac_offset(skb) + sizeof(*veth)))
+ return NF_ACCEPT;
+
veth = (struct vlan_ethhdr *)skb_mac_header(skb);
proto = veth->h_vlan_encapsulated_proto;
break;
diff --git a/net/netfilter/nf_flow_table_ip.c b/net/netfilter/nf_flow_table_ip.c
index f3227f931696..8fa16be0def2 100644
--- a/net/netfilter/nf_flow_table_ip.c
+++ b/net/netfilter/nf_flow_table_ip.c
@@ -254,6 +254,9 @@ static bool nf_flow_skb_encap_protocol(struct sk_buff *skb, __be16 proto,

switch (skb->protocol) {
case htons(ETH_P_8021Q):
+ if (!pskb_may_pull(skb, skb_mac_offset(skb) + sizeof(*veth)))
+ return false;
+
veth = (struct vlan_ethhdr *)skb_mac_header(skb);
if (veth->h_vlan_encapsulated_proto == proto) {
*offset += VLAN_HLEN;
diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index 6ac1ebe17456..d8cb304f809e 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -830,8 +830,8 @@ static int nf_flow_offload_tuple(struct nf_flowtable *flowtable,
struct list_head *block_cb_list)
{
struct flow_cls_offload cls_flow = {};
+ struct netlink_ext_ack extack = {};
struct flow_block_cb *block_cb;
- struct netlink_ext_ack extack;
__be16 proto = ETH_P_ALL;
int err, i = 0;

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 89b16d36da9c..d5f5b93a99a0 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -640,10 +640,41 @@ static bool nf_ct_drop_unconfirmed(const struct nf_queue_entry *entry)
{
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
static const unsigned long flags = IPS_CONFIRMED | IPS_DYING;
- const struct nf_conn *ct = (void *)skb_nfct(entry->skb);
+ struct nf_conn *ct = (void *)skb_nfct(entry->skb);
+ unsigned long status;
+ unsigned int use;

- if (ct && ((ct->status & flags) == IPS_DYING))
+ if (!ct)
+ return false;
+
+ status = READ_ONCE(ct->status);
+ if ((status & flags) == IPS_DYING)
return true;
+
+ if (status & IPS_CONFIRMED)
+ return false;
+
+ /* in some cases skb_clone() can occur after initial conntrack
+ * pickup, but conntrack assumes exclusive skb->_nfct ownership for
+ * unconfirmed entries.
+ *
+ * This happens for br_netfilter and with ip multicast routing.
+ * We can't be solved with serialization here because one clone could
+ * have been queued for local delivery.
+ */
+ use = refcount_read(&ct->ct_general.use);
+ if (likely(use == 1))
+ return false;
+
+ /* Can't decrement further? Exclusive ownership. */
+ if (!refcount_dec_not_one(&ct->ct_general.use))
+ return false;
+
+ skb_set_nfct(entry->skb, 0);
+ /* No nf_ct_put(): we already decremented .use and it cannot
+ * drop down to 0.
+ */
+ return true;
#endif
return false;
}
diff --git a/net/netfilter/nft_counter.c b/net/netfilter/nft_counter.c
index 1b468a16b523..30b24d002c3d 100644
--- a/net/netfilter/nft_counter.c
+++ b/net/netfilter/nft_counter.c
@@ -106,11 +106,16 @@ static void nft_counter_reset(struct nft_counter_percpu_priv *priv,
struct nft_counter *total)
{
struct nft_counter *this_cpu;
+ seqcount_t *myseq;

local_bh_disable();
this_cpu = this_cpu_ptr(priv->counter);
+ myseq = this_cpu_ptr(&nft_counter_seq);
+
+ write_seqcount_begin(myseq);
this_cpu->packets -= total->packets;
this_cpu->bytes -= total->bytes;
+ write_seqcount_end(myseq);
local_bh_enable();
}

@@ -264,7 +269,7 @@ static void nft_counter_offload_stats(struct nft_expr *expr,
struct nft_counter *this_cpu;
seqcount_t *myseq;

- preempt_disable();
+ local_bh_disable();
this_cpu = this_cpu_ptr(priv->counter);
myseq = this_cpu_ptr(&nft_counter_seq);

@@ -272,7 +277,7 @@ static void nft_counter_offload_stats(struct nft_expr *expr,
this_cpu->packets += stats->pkts;
this_cpu->bytes += stats->bytes;
write_seqcount_end(myseq);
- preempt_enable();
+ local_bh_enable();
}

static struct nft_expr_type nft_counter_type;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 18a38db2b27e..258d885548ae 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -128,7 +128,7 @@ static const char *const nlk_cb_mutex_key_strings[MAX_LINKS + 1] = {
"nlk_cb_mutex-MAX_LINKS"
};

-static int netlink_dump(struct sock *sk);
+static int netlink_dump(struct sock *sk, bool lock_taken);

/* nl_table locking explained:
* Lookup and traversal are protected with an RCU read-side lock. Insertion
@@ -2000,7 +2000,7 @@ static int netlink_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,

if (READ_ONCE(nlk->cb_running) &&
atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf / 2) {
- ret = netlink_dump(sk);
+ ret = netlink_dump(sk, false);
if (ret) {
WRITE_ONCE(sk->sk_err, -ret);
sk_error_report(sk);
@@ -2210,7 +2210,7 @@ static int netlink_dump_done(struct netlink_sock *nlk, struct sk_buff *skb,
return 0;
}

-static int netlink_dump(struct sock *sk)
+static int netlink_dump(struct sock *sk, bool lock_taken)
{
struct netlink_sock *nlk = nlk_sk(sk);
struct netlink_ext_ack extack = {};
@@ -2222,7 +2222,8 @@ static int netlink_dump(struct sock *sk)
int alloc_min_size;
int alloc_size;

- mutex_lock(nlk->cb_mutex);
+ if (!lock_taken)
+ mutex_lock(nlk->cb_mutex);
if (!nlk->cb_running) {
err = -EINVAL;
goto errout_skb;
@@ -2378,9 +2379,7 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
WRITE_ONCE(nlk->cb_running, true);
nlk->dump_done_errno = INT_MAX;

- mutex_unlock(nlk->cb_mutex);
-
- ret = netlink_dump(sk);
+ ret = netlink_dump(sk, true);

sock_put(sk);

diff --git a/net/rds/recv.c b/net/rds/recv.c
index 5b426dc3634d..a316180d3c32 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -424,6 +424,7 @@ static int rds_still_queued(struct rds_sock *rs, struct rds_incoming *inc,
struct sock *sk = rds_rs_to_sk(rs);
int ret = 0;
unsigned long flags;
+ struct rds_incoming *to_drop = NULL;

write_lock_irqsave(&rs->rs_recv_lock, flags);
if (!list_empty(&inc->i_item)) {
@@ -434,11 +435,14 @@ static int rds_still_queued(struct rds_sock *rs, struct rds_incoming *inc,
-be32_to_cpu(inc->i_hdr.h_len),
inc->i_hdr.h_dport);
list_del_init(&inc->i_item);
- rds_inc_put(inc);
+ to_drop = inc;
}
}
write_unlock_irqrestore(&rs->rs_recv_lock, flags);

+ if (to_drop)
+ rds_inc_put(to_drop);
+
rdsdebug("inc %p rs %p still %d dropped %d\n", inc, rs, ret, drop);
return ret;
}
@@ -757,16 +761,21 @@ void rds_clear_recv_queue(struct rds_sock *rs)
struct sock *sk = rds_rs_to_sk(rs);
struct rds_incoming *inc, *tmp;
unsigned long flags;
+ LIST_HEAD(to_drop);

write_lock_irqsave(&rs->rs_recv_lock, flags);
list_for_each_entry_safe(inc, tmp, &rs->rs_recv_queue, i_item) {
rds_recv_rcvbuf_delta(rs, sk, inc->i_conn->c_lcong,
-be32_to_cpu(inc->i_hdr.h_len),
inc->i_hdr.h_dport);
+ list_move(&inc->i_item, &to_drop);
+ }
+ write_unlock_irqrestore(&rs->rs_recv_lock, flags);
+
+ list_for_each_entry_safe(inc, tmp, &to_drop, i_item) {
list_del_init(&inc->i_item);
rds_inc_put(inc);
}
- write_unlock_irqrestore(&rs->rs_recv_lock, flags);
}

/*
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 08aaa6efc62c..e0e16b0fdb17 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -437,12 +437,10 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
struct netem_sched_data *q = qdisc_priv(sch);
/* We don't fill cb now as skb_unshare() may invalidate it */
struct netem_skb_cb *cb;
- struct sk_buff *skb2;
+ struct sk_buff *skb2 = NULL;
struct sk_buff *segs = NULL;
unsigned int prev_len = qdisc_pkt_len(skb);
int count = 1;
- int rc = NET_XMIT_SUCCESS;
- int rc_drop = NET_XMIT_DROP;

/* Do not fool qdisc_drop_all() */
skb->prev = NULL;
@@ -471,19 +469,11 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
skb_orphan_partial(skb);

/*
- * If we need to duplicate packet, then re-insert at top of the
- * qdisc tree, since parent queuer expects that only one
- * skb will be queued.
+ * If we need to duplicate packet, then clone it before
+ * original is modified.
*/
- if (count > 1 && (skb2 = skb_clone(skb, GFP_ATOMIC)) != NULL) {
- struct Qdisc *rootq = qdisc_root_bh(sch);
- u32 dupsave = q->duplicate; /* prevent duplicating a dup... */
-
- q->duplicate = 0;
- rootq->enqueue(skb2, rootq, to_free);
- q->duplicate = dupsave;
- rc_drop = NET_XMIT_SUCCESS;
- }
+ if (count > 1)
+ skb2 = skb_clone(skb, GFP_ATOMIC);

/*
* Randomized packet corruption.
@@ -495,7 +485,8 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
if (skb_is_gso(skb)) {
skb = netem_segment(skb, sch, to_free);
if (!skb)
- return rc_drop;
+ goto finish_segs;
+
segs = skb->next;
skb_mark_not_on_list(skb);
qdisc_skb_cb(skb)->pkt_len = skb->len;
@@ -521,7 +512,24 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
/* re-link segs, so that qdisc_drop_all() frees them all */
skb->next = segs;
qdisc_drop_all(skb, sch, to_free);
- return rc_drop;
+ if (skb2)
+ __qdisc_drop(skb2, to_free);
+ return NET_XMIT_DROP;
+ }
+
+ /*
+ * If doing duplication then re-insert at top of the
+ * qdisc tree, since parent queuer expects that only one
+ * skb will be queued.
+ */
+ if (skb2) {
+ struct Qdisc *rootq = qdisc_root_bh(sch);
+ u32 dupsave = q->duplicate; /* prevent duplicating a dup... */
+
+ q->duplicate = 0;
+ rootq->enqueue(skb2, rootq, to_free);
+ q->duplicate = dupsave;
+ skb2 = NULL;
}

qdisc_qstats_backlog_inc(sch, skb);
@@ -592,9 +600,12 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
}

finish_segs:
+ if (skb2)
+ __qdisc_drop(skb2, to_free);
+
if (segs) {
unsigned int len, last_len;
- int nb;
+ int rc, nb;

len = skb ? skb->len : 0;
nb = skb ? 1 : 0;
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index c964b48eaaba..a004c3ef35c0 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -309,7 +309,7 @@ EXPORT_SYMBOL_GPL(rpc_proc_unregister);
struct proc_dir_entry *
svc_proc_register(struct net *net, struct svc_stat *statp, const struct proc_ops *proc_ops)
{
- return do_register(net, statp->program->pg_name, statp, proc_ops);
+ return do_register(net, statp->program->pg_name, net, proc_ops);
}
EXPORT_SYMBOL_GPL(svc_proc_register);

diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 8d5897ed2816..92d88aac2adf 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -447,8 +447,8 @@ __svc_init_bc(struct svc_serv *serv)
* Create an RPC service
*/
static struct svc_serv *
-__svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
- int (*threadfn)(void *data))
+__svc_create(struct svc_program *prog, struct svc_stat *stats,
+ unsigned int bufsize, int npools, int (*threadfn)(void *data))
{
struct svc_serv *serv;
unsigned int vers;
@@ -460,7 +460,7 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
serv->sv_name = prog->pg_name;
serv->sv_program = prog;
kref_init(&serv->sv_refcnt);
- serv->sv_stats = prog->pg_stats;
+ serv->sv_stats = stats;
if (bufsize > RPCSVC_MAXPAYLOAD)
bufsize = RPCSVC_MAXPAYLOAD;
serv->sv_max_payload = bufsize? bufsize : 4096;
@@ -522,26 +522,28 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
struct svc_serv *svc_create(struct svc_program *prog, unsigned int bufsize,
int (*threadfn)(void *data))
{
- return __svc_create(prog, bufsize, 1, threadfn);
+ return __svc_create(prog, NULL, bufsize, 1, threadfn);
}
EXPORT_SYMBOL_GPL(svc_create);

/**
* svc_create_pooled - Create an RPC service with pooled threads
* @prog: the RPC program the new service will handle
+ * @stats: the stats struct if desired
* @bufsize: maximum message size for @prog
* @threadfn: a function to service RPC requests for @prog
*
* Returns an instantiated struct svc_serv object or NULL.
*/
struct svc_serv *svc_create_pooled(struct svc_program *prog,
+ struct svc_stat *stats,
unsigned int bufsize,
int (*threadfn)(void *data))
{
struct svc_serv *serv;
unsigned int npools = svc_pool_map_get();

- serv = __svc_create(prog, bufsize, npools, threadfn);
+ serv = __svc_create(prog, stats, bufsize, npools, threadfn);
if (!serv)
goto out_err;
return serv;
@@ -1357,7 +1359,8 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
goto err_bad_proc;

/* Syntactic check complete */
- serv->sv_stats->rpccnt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpccnt++;
trace_svc_process(rqstp, progp->pg_name);

/* Build the reply header. */
@@ -1423,7 +1426,8 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
goto close_xprt;

err_bad_rpc:
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
svc_putnl(resv, 1); /* REJECT */
svc_putnl(resv, 0); /* RPC_MISMATCH */
svc_putnl(resv, 2); /* Only RPCv2 supported */
@@ -1436,7 +1440,8 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
err_bad_auth:
dprintk("svc: authentication failed (%d)\n",
be32_to_cpu(rqstp->rq_auth_stat));
- serv->sv_stats->rpcbadauth++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadauth++;
/* Restore write pointer to location of accept status: */
xdr_ressize_check(rqstp, reply_statp);
svc_putnl(resv, 1); /* REJECT */
@@ -1446,7 +1451,8 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)

err_bad_prog:
dprintk("svc: unknown program %d\n", prog);
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
svc_putnl(resv, RPC_PROG_UNAVAIL);
goto sendit;

@@ -1454,7 +1460,8 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
svc_printk(rqstp, "unknown version (%d for prog %d, %s)\n",
rqstp->rq_vers, rqstp->rq_prog, progp->pg_name);

- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
svc_putnl(resv, RPC_PROG_MISMATCH);
svc_putnl(resv, process.mismatch.lovers);
svc_putnl(resv, process.mismatch.hivers);
@@ -1463,7 +1470,8 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
err_bad_proc:
svc_printk(rqstp, "unknown procedure (%d)\n", rqstp->rq_proc);

- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
svc_putnl(resv, RPC_PROC_UNAVAIL);
goto sendit;

@@ -1472,7 +1480,8 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)

rpc_stat = rpc_garbage_args;
err_bad:
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
svc_putnl(resv, ntohl(rpc_stat));
goto sendit;
}
@@ -1513,7 +1522,8 @@ svc_process(struct svc_rqst *rqstp)
if (dir != 0) {
/* direction != CALL */
svc_printk(rqstp, "bad direction %d, dropping request\n", dir);
- serv->sv_stats->rpcbadfmt++;
+ if (serv->sv_stats)
+ serv->sv_stats->rpcbadfmt++;
goto out_drop;
}

diff --git a/net/wireless/core.h b/net/wireless/core.h
index 1720abf36f92..be186b5a15f3 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -217,6 +217,7 @@ void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
static inline void wdev_lock(struct wireless_dev *wdev)
__acquires(wdev)
{
+ lockdep_assert_held(&wdev->wiphy->mtx);
mutex_lock(&wdev->mtx);
__acquire(wdev->mtx);
}
@@ -224,11 +225,16 @@ static inline void wdev_lock(struct wireless_dev *wdev)
static inline void wdev_unlock(struct wireless_dev *wdev)
__releases(wdev)
{
+ lockdep_assert_held(&wdev->wiphy->mtx);
__release(wdev->mtx);
mutex_unlock(&wdev->mtx);
}

-#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
+static inline void ASSERT_WDEV_LOCK(struct wireless_dev *wdev)
+{
+ lockdep_assert_held(&wdev->wiphy->mtx);
+ lockdep_assert_held(&wdev->mtx);
+}

static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
{
diff --git a/security/apparmor/policy_unpack_test.c b/security/apparmor/policy_unpack_test.c
index 533137f45361..4951d9bef579 100644
--- a/security/apparmor/policy_unpack_test.c
+++ b/security/apparmor/policy_unpack_test.c
@@ -78,14 +78,14 @@ struct aa_ext *build_aa_ext_struct(struct policy_unpack_fixture *puf,
*(buf + 1) = strlen(TEST_U32_NAME) + 1;
strcpy(buf + 3, TEST_U32_NAME);
*(buf + 3 + strlen(TEST_U32_NAME) + 1) = AA_U32;
- *((u32 *)(buf + 3 + strlen(TEST_U32_NAME) + 2)) = TEST_U32_DATA;
+ *((__le32 *)(buf + 3 + strlen(TEST_U32_NAME) + 2)) = cpu_to_le32(TEST_U32_DATA);

buf = e->start + TEST_NAMED_U64_BUF_OFFSET;
*buf = AA_NAME;
*(buf + 1) = strlen(TEST_U64_NAME) + 1;
strcpy(buf + 3, TEST_U64_NAME);
*(buf + 3 + strlen(TEST_U64_NAME) + 1) = AA_U64;
- *((u64 *)(buf + 3 + strlen(TEST_U64_NAME) + 2)) = TEST_U64_DATA;
+ *((__le64 *)(buf + 3 + strlen(TEST_U64_NAME) + 2)) = cpu_to_le64(TEST_U64_DATA);

buf = e->start + TEST_NAMED_BLOB_BUF_OFFSET;
*buf = AA_NAME;
@@ -101,7 +101,7 @@ struct aa_ext *build_aa_ext_struct(struct policy_unpack_fixture *puf,
*(buf + 1) = strlen(TEST_ARRAY_NAME) + 1;
strcpy(buf + 3, TEST_ARRAY_NAME);
*(buf + 3 + strlen(TEST_ARRAY_NAME) + 1) = AA_ARRAY;
- *((u16 *)(buf + 3 + strlen(TEST_ARRAY_NAME) + 2)) = TEST_ARRAY_SIZE;
+ *((__le16 *)(buf + 3 + strlen(TEST_ARRAY_NAME) + 2)) = cpu_to_le16(TEST_ARRAY_SIZE);

return e;
}
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 97f4c944a20f..5e0ed154669b 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -332,12 +332,12 @@ static int avc_add_xperms_decision(struct avc_node *node,
{
struct avc_xperms_decision_node *dest_xpd;

- node->ae.xp_node->xp.len++;
dest_xpd = avc_xperms_decision_alloc(src->used);
if (!dest_xpd)
return -ENOMEM;
avc_copy_xperms_decision(&dest_xpd->xpd, src);
list_add(&dest_xpd->xpd_list, &node->ae.xp_node->xpd_head);
+ node->ae.xp_node->xp.len++;
return 0;
}

diff --git a/sound/core/timer.c b/sound/core/timer.c
index 38f3b30efae7..ecad57a1bc5b 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -556,7 +556,7 @@ static int snd_timer_start1(struct snd_timer_instance *timeri,
/* check the actual time for the start tick;
* bail out as error if it's way too low (< 100us)
*/
- if (start) {
+ if (start && !(timer->hw.flags & SNDRV_TIMER_HW_SLAVE)) {
if ((u64)snd_timer_hw_resolution(timer) * ticks < 100000) {
result = -EINVAL;
goto unlock;
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8729896c7f9c..05fb686ae250 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -577,7 +577,6 @@ static void alc_shutup_pins(struct hda_codec *codec)
switch (codec->core.vendor_id) {
case 0x10ec0236:
case 0x10ec0256:
- case 0x10ec0257:
case 0x19e58326:
case 0x10ec0283:
case 0x10ec0285:
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index b03d671f218d..7a15cc260f74 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -273,6 +273,7 @@ YAMAHA_DEVICE(0x105a, NULL),
YAMAHA_DEVICE(0x105b, NULL),
YAMAHA_DEVICE(0x105c, NULL),
YAMAHA_DEVICE(0x105d, NULL),
+YAMAHA_DEVICE(0x1718, "P-125"),
{
USB_DEVICE(0x0499, 0x1503),
.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index cf1ba2837d10..cae8eb5d611b 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1900,6 +1900,8 @@ 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(0x2d95, 0x8021, /* VIVO USB-C-XE710 HEADSET */
+ QUIRK_FLAG_CTL_MSG_DELAY_1M),
DEVICE_FLG(0x30be, 0x0101, /* Schiit Hel */
QUIRK_FLAG_IGNORE_CTL_ERROR),
DEVICE_FLG(0x413c, 0xa506, /* Dell AE515 sound bar */
diff --git a/tools/include/linux/align.h b/tools/include/linux/align.h
new file mode 100644
index 000000000000..14e34ace80dd
--- /dev/null
+++ b/tools/include/linux/align.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _TOOLS_LINUX_ALIGN_H
+#define _TOOLS_LINUX_ALIGN_H
+
+#include <uapi/linux/const.h>
+
+#define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
+#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a))
+#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
+
+#endif /* _TOOLS_LINUX_ALIGN_H */
diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h
index 95611df1d26e..a83ffdf1e211 100644
--- a/tools/include/linux/bitmap.h
+++ b/tools/include/linux/bitmap.h
@@ -3,6 +3,7 @@
#define _PERF_BITOPS_H

#include <string.h>
+#include <linux/align.h>
#include <linux/bitops.h>
#include <stdlib.h>
#include <linux/kernel.h>
@@ -24,13 +25,14 @@ int __bitmap_intersects(const unsigned long *bitmap1,
#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))
#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))

+#define bitmap_size(nbits) (ALIGN(nbits, BITS_PER_LONG) / BITS_PER_BYTE)
+
static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)
{
if (small_const_nbits(nbits))
*dst = 0UL;
else {
- int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
- memset(dst, 0, len);
+ memset(dst, 0, bitmap_size(nbits));
}
}

@@ -116,7 +118,7 @@ static inline int test_and_clear_bit(int nr, unsigned long *addr)
*/
static inline unsigned long *bitmap_zalloc(int nbits)
{
- return calloc(1, BITS_TO_LONGS(nbits) * sizeof(unsigned long));
+ return calloc(1, bitmap_size(nbits));
}

/*
@@ -159,7 +161,6 @@ static inline int bitmap_and(unsigned long *dst, const unsigned long *src1,
#define BITMAP_MEM_ALIGNMENT (8 * sizeof(unsigned long))
#endif
#define BITMAP_MEM_MASK (BITMAP_MEM_ALIGNMENT - 1)
-#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)

static inline int bitmap_equal(const unsigned long *src1,
const unsigned long *src2, unsigned int nbits)
diff --git a/tools/testing/selftests/core/close_range_test.c b/tools/testing/selftests/core/close_range_test.c
index aa7d13d91963..03db3d9cd94b 100644
--- a/tools/testing/selftests/core/close_range_test.c
+++ b/tools/testing/selftests/core/close_range_test.c
@@ -567,4 +567,39 @@ TEST(close_range_cloexec_unshare_syzbot)
EXPECT_EQ(close(fd3), 0);
}

+TEST(close_range_bitmap_corruption)
+{
+ pid_t pid;
+ int status;
+ struct __clone_args args = {
+ .flags = CLONE_FILES,
+ .exit_signal = SIGCHLD,
+ };
+
+ /* get the first 128 descriptors open */
+ for (int i = 2; i < 128; i++)
+ EXPECT_GE(dup2(0, i), 0);
+
+ /* get descriptor table shared */
+ pid = sys_clone3(&args, sizeof(args));
+ ASSERT_GE(pid, 0);
+
+ if (pid == 0) {
+ /* unshare and truncate descriptor table down to 64 */
+ if (sys_close_range(64, ~0U, CLOSE_RANGE_UNSHARE))
+ exit(EXIT_FAILURE);
+
+ ASSERT_EQ(fcntl(64, F_GETFD), -1);
+ /* ... and verify that the range 64..127 is not
+ stuck "fully used" according to secondary bitmap */
+ EXPECT_EQ(dup(0), 64)
+ exit(EXIT_FAILURE);
+ exit(EXIT_SUCCESS);
+ }
+
+ EXPECT_EQ(waitpid(pid, &status, 0), pid);
+ EXPECT_EQ(true, WIFEXITED(status));
+ EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/tc-testing/tdc.py b/tools/testing/selftests/tc-testing/tdc.py
index a3e43189d940..d6a9d97f73c2 100755
--- a/tools/testing/selftests/tc-testing/tdc.py
+++ b/tools/testing/selftests/tc-testing/tdc.py
@@ -129,7 +129,6 @@ class PluginMgr:
except Exception as ee:
print('exception {} in call to pre_case for {} plugin'.
format(ee, pgn_inst.__class__))
- print('test_ordinal is {}'.format(test_ordinal))
print('testid is {}'.format(caseinfo['id']))
raise