Re: Linux 4.14.221

Greg Kroah-Hartman
2021-02-10T08:49:34Z

diff --git a/Makefile b/Makefile
index 088dc5383dcf..b25ce26c1cd7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
-SUBLEVEL = 220
+SUBLEVEL = 221
EXTRAVERSION =
NAME = Petit Gorille

@@ -844,12 +844,6 @@ KBUILD_CFLAGS += $(call cc-option,-Werror=designated-init)
# change __FILE__ to the relative path from the srctree
KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)

-# ensure -fcf-protection is disabled when using retpoline as it is
-# incompatible with -mindirect-branch=thunk-extern
-ifdef CONFIG_RETPOLINE
-KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none)
-endif
-
# use the deterministic mode of AR if available
KBUILD_ARFLAGS := $(call ar-option,D)

diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index 96a3d73ef4bf..fd6c9169fa78 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -69,15 +69,15 @@ dc21285_read_config(struct pci_bus *bus, unsigned int devfn, int where,
if (addr)
switch (size) {
case 1:
- asm("ldrb %0, [%1, %2]"
+ asm volatile("ldrb %0, [%1, %2]"
: "=r" (v) : "r" (addr), "r" (where) : "cc");
break;
case 2:
- asm("ldrh %0, [%1, %2]"
+ asm volatile("ldrh %0, [%1, %2]"
: "=r" (v) : "r" (addr), "r" (where) : "cc");
break;
case 4:
- asm("ldr %0, [%1, %2]"
+ asm volatile("ldr %0, [%1, %2]"
: "=r" (v) : "r" (addr), "r" (where) : "cc");
break;
}
@@ -103,17 +103,17 @@ dc21285_write_config(struct pci_bus *bus, unsigned int devfn, int where,
if (addr)
switch (size) {
case 1:
- asm("strb %0, [%1, %2]"
+ asm volatile("strb %0, [%1, %2]"
: : "r" (value), "r" (addr), "r" (where)
: "cc");
break;
case 2:
- asm("strh %0, [%1, %2]"
+ asm volatile("strh %0, [%1, %2]"
: : "r" (value), "r" (addr), "r" (where)
: "cc");
break;
case 4:
- asm("str %0, [%1, %2]"
+ asm volatile("str %0, [%1, %2]"
: : "r" (value), "r" (addr), "r" (where)
: "cc");
break;
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index c8ff0baddf1d..cb49d21e317c 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -304,7 +304,7 @@

dcfg: dcfg@1ee0000 {
compatible = "fsl,ls1046a-dcfg", "syscon";
- reg = <0x0 0x1ee0000 0x0 0x10000>;
+ reg = <0x0 0x1ee0000 0x0 0x1000>;
big-endian;
};

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 3dc54d2f79c4..4c8e9f12b0c4 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -138,6 +138,9 @@ else
KBUILD_CFLAGS += -mno-red-zone
KBUILD_CFLAGS += -mcmodel=kernel

+ # Intel CET isn't enabled in the kernel
+ KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none)
+
# -funit-at-a-time shrinks the kernel .text considerably
# unfortunately it makes reading oopses harder.
KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 25a5a5c6ae90..95f59f5dffb3 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -174,16 +174,6 @@ static inline void lapic_update_tsc_freq(void) { }
#endif /* !CONFIG_X86_LOCAL_APIC */

#ifdef CONFIG_X86_X2APIC
-/*
- * Make previous memory operations globally visible before
- * sending the IPI through x2apic wrmsr. We need a serializing instruction or
- * mfence for this.
- */
-static inline void x2apic_wrmsr_fence(void)
-{
- asm volatile("mfence" : : : "memory");
-}
-
static inline void native_apic_msr_write(u32 reg, u32 v)
{
if (reg == APIC_DFR || reg == APIC_ID || reg == APIC_LDR ||
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
index bc88797cfa61..3895a7b6952b 100644
--- a/arch/x86/include/asm/barrier.h
+++ b/arch/x86/include/asm/barrier.h
@@ -111,4 +111,22 @@ do { \

#include <asm-generic/barrier.h>

+/*
+ * Make previous memory operations globally visible before
+ * a WRMSR.
+ *
+ * MFENCE makes writes visible, but only affects load/store
+ * instructions. WRMSR is unfortunately not a load/store
+ * instruction and is unaffected by MFENCE. The LFENCE ensures
+ * that the WRMSR is not reordered.
+ *
+ * Most WRMSRs are full serializing instructions themselves and
+ * do not require this barrier. This is only required for the
+ * IA32_TSC_DEADLINE and X2APIC MSRs.
+ */
+static inline void weak_wrmsr_fence(void)
+{
+ asm volatile("mfence; lfence" : : : "memory");
+}
+
#endif /* _ASM_X86_BARRIER_H */
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index ee33f0951322..76f2bbba92f9 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -42,6 +42,7 @@
#include <asm/x86_init.h>
#include <asm/pgalloc.h>
#include <linux/atomic.h>
+#include <asm/barrier.h>
#include <asm/mpspec.h>
#include <asm/i8259.h>
#include <asm/proto.h>
@@ -473,6 +474,9 @@ static int lapic_next_deadline(unsigned long delta,
{
u64 tsc;

+ /* This MSR is special and need a special fence: */
+ weak_wrmsr_fence();
+
tsc = rdtsc();
wrmsrl(MSR_IA32_TSC_DEADLINE, tsc + (((u64) delta) * TSC_DIVISOR));
return 0;
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index e216cf3d64d2..32c5dba6f1bb 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -29,7 +29,8 @@ static void x2apic_send_IPI(int cpu, int vector)
{
u32 dest = per_cpu(x86_cpu_to_logical_apicid, cpu);

- x2apic_wrmsr_fence();
+ /* x2apic MSRs are special and need a special fence: */
+ weak_wrmsr_fence();
__x2apic_send_IPI_dest(dest, vector, APIC_DEST_LOGICAL);
}

@@ -42,7 +43,8 @@ __x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest)
unsigned long flags;
u32 dest;

- x2apic_wrmsr_fence();
+ /* x2apic MSRs are special and need a special fence: */
+ weak_wrmsr_fence();

local_irq_save(flags);

diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index b94d35320f85..98716a4be0a7 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -41,7 +41,8 @@ static void x2apic_send_IPI(int cpu, int vector)
{
u32 dest = per_cpu(x86_cpu_to_apicid, cpu);

- x2apic_wrmsr_fence();
+ /* x2apic MSRs are special and need a special fence: */
+ weak_wrmsr_fence();
__x2apic_send_IPI_dest(dest, vector, APIC_DEST_PHYSICAL);
}

@@ -52,7 +53,8 @@ __x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest)
unsigned long this_cpu;
unsigned long flags;

- x2apic_wrmsr_fence();
+ /* x2apic MSRs are special and need a special fence: */
+ weak_wrmsr_fence();

local_irq_save(flags);

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 637f1347cd13..815b69d35722 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -232,9 +232,17 @@ static const struct xpad_device {
{ 0x0e6f, 0x0213, "Afterglow Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x021f, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x0246, "Rock Candy Gamepad for Xbox One 2015", 0, XTYPE_XBOXONE },
- { 0x0e6f, 0x02ab, "PDP Controller for Xbox One", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02a0, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02a1, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02a2, "PDP Wired Controller for Xbox One - Crimson Red", 0, XTYPE_XBOXONE },
{ 0x0e6f, 0x02a4, "PDP Wired Controller for Xbox One - Stealth Series", 0, XTYPE_XBOXONE },
{ 0x0e6f, 0x02a6, "PDP Wired Controller for Xbox One - Camo Series", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02a7, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02a8, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02ab, "PDP Controller for Xbox One", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02ad, "PDP Wired Controller for Xbox One - Stealth Series", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02b3, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
+ { 0x0e6f, 0x02b8, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
{ 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x0346, "Rock Candy Gamepad for Xbox One 2016", 0, XTYPE_XBOXONE },
{ 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 },
@@ -313,6 +321,9 @@ static const struct xpad_device {
{ 0x1bad, 0xfa01, "MadCatz GamePad", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xfd00, "Razer Onza TE", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xfd01, "Razer Onza", 0, XTYPE_XBOX360 },
+ { 0x20d6, 0x2001, "BDA Xbox Series X Wired Controller", 0, XTYPE_XBOXONE },
+ { 0x20d6, 0x281f, "PowerA Wired Controller For Xbox 360", 0, XTYPE_XBOX360 },
+ { 0x2e24, 0x0652, "Hyperkin Duke X-Box One pad", 0, XTYPE_XBOXONE },
{ 0x24c6, 0x5000, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x24c6, 0x5300, "PowerA MINI PROEX Controller", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5303, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
@@ -446,8 +457,12 @@ static const struct usb_device_id xpad_table[] = {
XPAD_XBOX360_VENDOR(0x162e), /* Joytech X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x1689), /* Razer Onza */
XPAD_XBOX360_VENDOR(0x1bad), /* Harminix Rock Band Guitar and Drums */
+ XPAD_XBOX360_VENDOR(0x20d6), /* PowerA Controllers */
+ XPAD_XBOXONE_VENDOR(0x20d6), /* PowerA Controllers */
XPAD_XBOX360_VENDOR(0x24c6), /* PowerA Controllers */
XPAD_XBOXONE_VENDOR(0x24c6), /* PowerA Controllers */
+ XPAD_XBOXONE_VENDOR(0x2e24), /* Hyperkin Duke X-Box One pad */
+ XPAD_XBOX360_VENDOR(0x2f24), /* GameSir Controllers */
{ }
};

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index b256e3006a6f..844875df8cad 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -223,6 +223,8 @@ static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
},
+ },
+ {
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ByteSpeed LLC"),
DMI_MATCH(DMI_PRODUCT_NAME, "ByteSpeed Laptop C15B"),
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index db1b546134f5..74bfd7d29338 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -3338,6 +3338,12 @@ static int __init init_dmars(void)

if (!ecap_pass_through(iommu->ecap))
hw_pass_through = 0;
+
+ if (!intel_iommu_strict && cap_caching_mode(iommu->cap)) {
+ pr_info("Disable batched IOTLB flush due to virtualization");
+ intel_iommu_strict = 1;
+ }
+
#ifdef CONFIG_INTEL_IOMMU_SVM
if (pasid_enabled(iommu))
intel_svm_alloc_pasid_tables(iommu);
diff --git a/drivers/mmc/core/sdio_cis.c b/drivers/mmc/core/sdio_cis.c
index 2ca5cd79018b..dca72444b312 100644
--- a/drivers/mmc/core/sdio_cis.c
+++ b/drivers/mmc/core/sdio_cis.c
@@ -24,6 +24,8 @@
#include "sdio_cis.h"
#include "sdio_ops.h"

+#define SDIO_READ_CIS_TIMEOUT_MS (10 * 1000) /* 10s */
+
static int cistpl_vers_1(struct mmc_card *card, struct sdio_func *func,
const unsigned char *buf, unsigned size)
{
@@ -270,6 +272,8 @@ static int sdio_read_cis(struct mmc_card *card, struct sdio_func *func)

do {
unsigned char tpl_code, tpl_link;
+ unsigned long timeout = jiffies +
+ msecs_to_jiffies(SDIO_READ_CIS_TIMEOUT_MS);

ret = mmc_io_rw_direct(card, 0, 0, ptr++, 0, &tpl_code);
if (ret)
@@ -322,6 +326,8 @@ static int sdio_read_cis(struct mmc_card *card, struct sdio_func *func)
prev = &this->next;

if (ret == -ENOENT) {
+ if (time_after(jiffies, timeout))
+ break;
/* warn about unknown tuples */
pr_warn_ratelimited("%s: queuing unknown"
" CIS tuple 0x%02x (%u bytes)\n",
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index f4268f032266..7ab4cc0962ac 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1364,7 +1364,11 @@ static int mv88e6xxx_port_db_load_purge(struct mv88e6xxx_chip *chip, int port,
if (!entry.portvec)
entry.state = MV88E6XXX_G1_ATU_DATA_STATE_UNUSED;
} else {
- entry.portvec |= BIT(port);
+ if (state == MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC)
+ entry.portvec = BIT(port);
+ else
+ entry.portvec |= BIT(port);
+
entry.state = state;
}

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 540fab9f850d..92f269a0846c 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2588,6 +2588,8 @@ static const struct pci_device_id nvme_id_table[] = {
{ PCI_DEVICE(0x1d1d, 0x2601), /* CNEX Granby */
.driver_data = NVME_QUIRK_LIGHTNVM, },
{ PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) },
+ { PCI_DEVICE(0x2646, 0x2263), /* KINGSTON A2000 NVMe SSD */
+ .driver_data = NVME_QUIRK_NO_DEEPEST_PS, },
{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2001) },
{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2003) },
{ 0, }
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 21a51a15893b..f69a0a0b7266 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -1340,14 +1340,17 @@ static int usblp_set_protocol(struct usblp *usblp, int protocol)
if (protocol < USBLP_FIRST_PROTOCOL || protocol > USBLP_LAST_PROTOCOL)
return -EINVAL;

- alts = usblp->protocol[protocol].alt_setting;
- if (alts < 0)
- return -EINVAL;
- r = usb_set_interface(usblp->dev, usblp->ifnum, alts);
- if (r < 0) {
- printk(KERN_ERR "usblp: can't set desired altsetting %d on interface %d\n",
- alts, usblp->ifnum);
- return r;
+ /* Don't unnecessarily set the interface if there's a single alt. */
+ if (usblp->intf->num_altsetting > 1) {
+ alts = usblp->protocol[protocol].alt_setting;
+ if (alts < 0)
+ return -EINVAL;
+ r = usb_set_interface(usblp->dev, usblp->ifnum, alts);
+ if (r < 0) {
+ printk(KERN_ERR "usblp: can't set desired altsetting %d on interface %d\n",
+ alts, usblp->ifnum);
+ return r;
+ }
}

usblp->bidir = (usblp->protocol[protocol].epread != NULL);
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index d2d4067a1a5f..aab2f6cbd524 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1470,7 +1470,6 @@ static void dwc2_hsotg_complete_oursetup(struct usb_ep *ep,
static struct dwc2_hsotg_ep *ep_from_windex(struct dwc2_hsotg *hsotg,
u32 windex)
{
- struct dwc2_hsotg_ep *ep;
int dir = (windex & USB_DIR_IN) ? 1 : 0;
int idx = windex & 0x7F;

@@ -1480,12 +1479,7 @@ static struct dwc2_hsotg_ep *ep_from_windex(struct dwc2_hsotg *hsotg,
if (idx > hsotg->num_of_eps)
return NULL;

- ep = index_to_ep(hsotg, idx, dir);
-
- if (idx && ep->dir_in != dir)
- return NULL;
-
- return ep;
+ return index_to_ep(hsotg, idx, dir);
}

/**
diff --git a/drivers/usb/gadget/legacy/ether.c b/drivers/usb/gadget/legacy/ether.c
index 25a2c2e48592..3396e7193dba 100644
--- a/drivers/usb/gadget/legacy/ether.c
+++ b/drivers/usb/gadget/legacy/ether.c
@@ -407,8 +407,10 @@ static int eth_bind(struct usb_composite_dev *cdev)
struct usb_descriptor_header *usb_desc;

usb_desc = usb_otg_descriptor_alloc(gadget);
- if (!usb_desc)
+ if (!usb_desc) {
+ status = -ENOMEM;
goto fail1;
+ }
usb_otg_descriptor_init(gadget, usb_desc);
otg_desc[0] = usb_desc;
otg_desc[1] = NULL;
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 0c5b2c75b871..748d4c69cb28 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -681,11 +681,16 @@ static void xhci_unmap_td_bounce_buffer(struct xhci_hcd *xhci,
dma_unmap_single(dev, seg->bounce_dma, ring->bounce_buf_len,
DMA_FROM_DEVICE);
/* for in tranfers we need to copy the data from bounce to sg */
- len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs, seg->bounce_buf,
- seg->bounce_len, seg->bounce_offs);
- if (len != seg->bounce_len)
- xhci_warn(xhci, "WARN Wrong bounce buffer read length: %zu != %d\n",
- len, seg->bounce_len);
+ if (urb->num_sgs) {
+ len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs, seg->bounce_buf,
+ seg->bounce_len, seg->bounce_offs);
+ if (len != seg->bounce_len)
+ xhci_warn(xhci, "WARN Wrong bounce buffer read length: %zu != %d\n",
+ len, seg->bounce_len);
+ } else {
+ memcpy(urb->transfer_buffer + seg->bounce_offs, seg->bounce_buf,
+ seg->bounce_len);
+ }
seg->bounce_len = 0;
seg->bounce_offs = 0;
}
@@ -3252,12 +3257,16 @@ static int xhci_align_td(struct xhci_hcd *xhci, struct urb *urb, u32 enqd_len,

/* create a max max_pkt sized bounce buffer pointed to by last trb */
if (usb_urb_dir_out(urb)) {
- len = sg_pcopy_to_buffer(urb->sg, urb->num_sgs,
- seg->bounce_buf, new_buff_len, enqd_len);
- if (len != new_buff_len)
- xhci_warn(xhci,
- "WARN Wrong bounce buffer write length: %zu != %d\n",
- len, new_buff_len);
+ if (urb->num_sgs) {
+ len = sg_pcopy_to_buffer(urb->sg, urb->num_sgs,
+ seg->bounce_buf, new_buff_len, enqd_len);
+ if (len != new_buff_len)
+ xhci_warn(xhci, "WARN Wrong bounce buffer write length: %zu != %d\n",
+ len, new_buff_len);
+ } else {
+ memcpy(seg->bounce_buf, urb->transfer_buffer + enqd_len, new_buff_len);
+ }
+
seg->bounce_dma = dma_map_single(dev, seg->bounce_buf,
max_pkt, DMA_TO_DEVICE);
} else {
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 630c8338d791..2d07364e9302 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -64,6 +64,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */
{ USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */
{ USB_DEVICE(0x0908, 0x01FF) }, /* Siemens RUGGEDCOM USB Serial Console */
+ { USB_DEVICE(0x0988, 0x0578) }, /* Teraoka AD2000 */
{ USB_DEVICE(0x0B00, 0x3070) }, /* Ingenico 3070 */
{ USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */
{ USB_DEVICE(0x0BED, 0x1101) }, /* MEI series 2000 Combo Acceptor */
@@ -204,6 +205,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1901, 0x0194) }, /* GE Healthcare Remote Alarm Box */
{ USB_DEVICE(0x1901, 0x0195) }, /* GE B850/B650/B450 CP2104 DP UART interface */
{ USB_DEVICE(0x1901, 0x0196) }, /* GE B850 CP2105 DP UART interface */
+ { USB_DEVICE(0x199B, 0xBA30) }, /* LORD WSDA-200-USB */
{ USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */
{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 27549e80e0b1..22e119774cb3 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -428,6 +428,8 @@ static void option_instat_callback(struct urb *urb);
#define CINTERION_PRODUCT_AHXX_2RMNET 0x0084
#define CINTERION_PRODUCT_AHXX_AUDIO 0x0085
#define CINTERION_PRODUCT_CLS8 0x00b0
+#define CINTERION_PRODUCT_MV31_MBIM 0x00b3
+#define CINTERION_PRODUCT_MV31_RMNET 0x00b7

/* Olivetti products */
#define OLIVETTI_VENDOR_ID 0x0b3c
@@ -1917,6 +1919,10 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDMNET) },
{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, /* HC28 enumerates with Siemens or Cinterion VID depending on FW revision */
{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
+ { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_MV31_MBIM, 0xff),
+ .driver_info = RSVD(3)},
+ { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_MV31_RMNET, 0xff),
+ .driver_info = RSVD(0)},
{ USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD100),
.driver_info = RSVD(4) },
{ USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD120),
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 03293e543c07..b92804ff3b33 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -841,6 +841,7 @@ static int
cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
{
struct inode *inode;
+ int rc;

if (flags & LOOKUP_RCU)
return -ECHILD;
@@ -850,8 +851,25 @@ cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
if ((flags & LOOKUP_REVAL) && !CIFS_CACHE_READ(CIFS_I(inode)))
CIFS_I(inode)->time = 0; /* force reval */

- if (cifs_revalidate_dentry(direntry))
- return 0;
+ rc = cifs_revalidate_dentry(direntry);
+ if (rc) {
+ cifs_dbg(FYI, "cifs_revalidate_dentry failed with rc=%d", rc);
+ switch (rc) {
+ case -ENOENT:
+ case -ESTALE:
+ /*
+ * Those errors mean the dentry is invalid
+ * (file was deleted or recreated)
+ */
+ return 0;
+ default:
+ /*
+ * Otherwise some unexpected error happened
+ * report it as-is to VFS layer
+ */
+ return rc;
+ }
+ }
else {
/*
* If the inode wasn't known to be a dfs entry when
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index f8baa54c8300..407425d31b2e 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -206,7 +206,7 @@ struct smb2_negotiate_req {
__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
__le16 NegotiateContextCount; /* SMB3.1.1 only. MBZ earlier */
__le16 Reserved2;
- __le16 Dialects[1]; /* One dialect (vers=) at a time for now */
+ __le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */
} __packed;

/* Dialects */
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index ba54a0e12bbd..94fc833119e4 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -649,8 +649,9 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset,

mutex_unlock(&hugetlb_fault_mutex_table[hash]);

+ set_page_huge_active(page);
/*
- * page_put due to reference from alloc_huge_page()
+ * put_page() due to reference from alloc_huge_page()
* unlock_page because locked by add_to_page_cache()
*/
put_page(page);
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 8c561703275a..5bdc85ad13a2 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -850,8 +850,8 @@ static char *ovl_get_redirect(struct dentry *dentry, bool samedir)

buflen -= thislen;
memcpy(&buf[buflen], name, thislen);
- tmp = dget_dlock(d->d_parent);
spin_unlock(&d->d_lock);
+ tmp = dget_parent(d);

dput(d);
d = tmp;
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 4cad0e784b28..b81f9e1d74b0 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -58,6 +58,7 @@ static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregse
}
#endif

+#if defined(CONFIG_UM) || defined(CONFIG_IA64)
/*
* These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
* extra segments containing the gate DSO contents. Dumping its
@@ -72,5 +73,26 @@ elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset);
extern int
elf_core_write_extra_data(struct coredump_params *cprm);
extern size_t elf_core_extra_data_size(void);
+#else
+static inline Elf_Half elf_core_extra_phdrs(void)
+{
+ return 0;
+}
+
+static inline int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
+{
+ return 1;
+}
+
+static inline int elf_core_write_extra_data(struct coredump_params *cprm)
+{
+ return 1;
+}
+
+static inline size_t elf_core_extra_data_size(void)
+{
+ return 0;
+}
+#endif

#endif /* _LINUX_ELFCORE_H */
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 50a07235032f..7b152f9d63a4 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -531,6 +531,9 @@ static inline void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr
set_huge_pte_at(mm, addr, ptep, pte);
}
#endif
+
+void set_page_huge_active(struct page *page);
+
#else /* CONFIG_HUGETLB_PAGE */
struct hstate {};
#define alloc_huge_page(v, a, r) NULL
diff --git a/kernel/Makefile b/kernel/Makefile
index 43e92e3691ec..38151285fca4 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -90,7 +90,6 @@ obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
obj-$(CONFIG_TRACEPOINTS) += tracepoint.o
obj-$(CONFIG_LATENCYTOP) += latencytop.o
-obj-$(CONFIG_ELFCORE) += elfcore.o
obj-$(CONFIG_FUNCTION_TRACER) += trace/
obj-$(CONFIG_TRACING) += trace/
obj-$(CONFIG_TRACE_CLOCK) += trace/
diff --git a/kernel/elfcore.c b/kernel/elfcore.c
deleted file mode 100644
index 57fb4dcff434..000000000000
--- a/kernel/elfcore.c
+++ /dev/null
@@ -1,26 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/elf.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/binfmts.h>
-#include <linux/elfcore.h>
-
-Elf_Half __weak elf_core_extra_phdrs(void)
-{
- return 0;
-}
-
-int __weak elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
-{
- return 1;
-}
-
-int __weak elf_core_write_extra_data(struct coredump_params *cprm)
-{
- return 1;
-}
-
-size_t __weak elf_core_extra_data_size(void)
-{
- return 0;
-}
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index fdf6656cce29..d752c1df8f3f 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1989,6 +1989,10 @@ int register_kretprobe(struct kretprobe *rp)
if (!kprobe_on_func_entry(rp->kp.addr, rp->kp.symbol_name, rp->kp.offset))
return -EINVAL;

+ /* If only rp->kp.addr is specified, check reregistering kprobes */
+ if (rp->kp.addr && check_kprobe_rereg(&rp->kp))
+ return -EINVAL;
+
if (kretprobe_blacklist_size) {
addr = kprobe_addr(&rp->kp);
if (IS_ERR(addr))
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 5d9dd24d99c8..9dbfa7286c61 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2198,7 +2198,7 @@ void __split_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
spinlock_t *ptl;
struct mm_struct *mm = vma->vm_mm;
unsigned long haddr = address & HPAGE_PMD_MASK;
- bool was_locked = false;
+ bool do_unlock_page = false;
pmd_t _pmd;

mmu_notifier_invalidate_range_start(mm, haddr, haddr + HPAGE_PMD_SIZE);
@@ -2211,7 +2211,6 @@ void __split_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
VM_BUG_ON(freeze && !page);
if (page) {
VM_WARN_ON_ONCE(!PageLocked(page));
- was_locked = true;
if (page != pmd_page(*pmd))
goto out;
}
@@ -2220,19 +2219,29 @@ void __split_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
if (pmd_trans_huge(*pmd)) {
if (!page) {
page = pmd_page(*pmd);
- if (unlikely(!trylock_page(page))) {
- get_page(page);
- _pmd = *pmd;
- spin_unlock(ptl);
- lock_page(page);
- spin_lock(ptl);
- if (unlikely(!pmd_same(*pmd, _pmd))) {
- unlock_page(page);
+ /*
+ * An anonymous page must be locked, to ensure that a
+ * concurrent reuse_swap_page() sees stable mapcount;
+ * but reuse_swap_page() is not used on shmem or file,
+ * and page lock must not be taken when zap_pmd_range()
+ * calls __split_huge_pmd() while i_mmap_lock is held.
+ */
+ if (PageAnon(page)) {
+ if (unlikely(!trylock_page(page))) {
+ get_page(page);
+ _pmd = *pmd;
+ spin_unlock(ptl);
+ lock_page(page);
+ spin_lock(ptl);
+ if (unlikely(!pmd_same(*pmd, _pmd))) {
+ unlock_page(page);
+ put_page(page);
+ page = NULL;
+ goto repeat;
+ }
put_page(page);
- page = NULL;
- goto repeat;
}
- put_page(page);
+ do_unlock_page = true;
}
}
if (PageMlocked(page))
@@ -2242,7 +2251,7 @@ void __split_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
__split_huge_pmd_locked(vma, pmd, haddr, freeze);
out:
spin_unlock(ptl);
- if (!was_locked && page)
+ if (do_unlock_page)
unlock_page(page);
mmu_notifier_invalidate_range_end(mm, haddr, haddr + HPAGE_PMD_SIZE);
}
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 3623eb037eee..5f0d0f92adbf 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1233,12 +1233,11 @@ struct hstate *size_to_hstate(unsigned long size)
*/
bool page_huge_active(struct page *page)
{
- VM_BUG_ON_PAGE(!PageHuge(page), page);
- return PageHead(page) && PagePrivate(&page[1]);
+ return PageHeadHuge(page) && PagePrivate(&page[1]);
}

/* never called for tail page */
-static void set_page_huge_active(struct page *page)
+void set_page_huge_active(struct page *page)
{
VM_BUG_ON_PAGE(!PageHeadHuge(page), page);
SetPagePrivate(&page[1]);
@@ -4865,9 +4864,9 @@ bool isolate_huge_page(struct page *page, struct list_head *list)
{
bool ret = true;

- VM_BUG_ON_PAGE(!PageHead(page), page);
spin_lock(&hugetlb_lock);
- if (!page_huge_active(page) || !get_page_unless_zero(page)) {
+ if (!PageHeadHuge(page) || !page_huge_active(page) ||
+ !get_page_unless_zero(page)) {
ret = false;
goto unlock;
}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index be7383d139c1..78d6bc61a1d8 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1437,6 +1437,24 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe,
return ret;
}

+struct uncached_list {
+ spinlock_t lock;
+ struct list_head head;
+};
+
+static DEFINE_PER_CPU_ALIGNED(struct uncached_list, rt_uncached_list);
+
+static void rt_add_uncached_list(struct rtable *rt)
+{
+ struct uncached_list *ul = raw_cpu_ptr(&rt_uncached_list);
+
+ rt->rt_uncached_list = ul;
+
+ spin_lock_bh(&ul->lock);
+ list_add_tail(&rt->rt_uncached, &ul->head);
+ spin_unlock_bh(&ul->lock);
+}
+
static bool rt_cache_route(struct fib_nh *nh, struct rtable *rt)
{
struct rtable *orig, *prev, **p;
@@ -1456,7 +1474,7 @@ static bool rt_cache_route(struct fib_nh *nh, struct rtable *rt)
prev = cmpxchg(p, orig, rt);
if (prev == orig) {
if (orig) {
- dst_dev_put(&orig->dst);
+ rt_add_uncached_list(orig);
dst_release(&orig->dst);
}
} else {
@@ -1467,24 +1485,6 @@ static bool rt_cache_route(struct fib_nh *nh, struct rtable *rt)
return ret;
}

-struct uncached_list {
- spinlock_t lock;
- struct list_head head;
-};
-
-static DEFINE_PER_CPU_ALIGNED(struct uncached_list, rt_uncached_list);
-
-static void rt_add_uncached_list(struct rtable *rt)
-{
- struct uncached_list *ul = raw_cpu_ptr(&rt_uncached_list);
-
- rt->rt_uncached_list = ul;
-
- spin_lock_bh(&ul->lock);
- list_add_tail(&rt->rt_uncached, &ul->head);
- spin_unlock_bh(&ul->lock);
-}
-
static void ipv4_dst_destroy(struct dst_entry *dst)
{
struct dst_metrics *p = (struct dst_metrics *)DST_METRICS_PTR(dst);
diff --git a/net/lapb/lapb_out.c b/net/lapb/lapb_out.c
index eda726e22f64..621c66f00117 100644
--- a/net/lapb/lapb_out.c
+++ b/net/lapb/lapb_out.c
@@ -87,7 +87,8 @@ void lapb_kick(struct lapb_cb *lapb)
skb = skb_dequeue(&lapb->write_queue);

do {
- if ((skbn = skb_clone(skb, GFP_ATOMIC)) == NULL) {
+ skbn = skb_copy(skb, GFP_ATOMIC);
+ if (!skbn) {
skb_queue_head(&lapb->write_queue, skb);
break;
}
diff --git a/net/mac80211/driver-ops.c b/net/mac80211/driver-ops.c
index f783d1377d9a..9f0f437a09b9 100644
--- a/net/mac80211/driver-ops.c
+++ b/net/mac80211/driver-ops.c
@@ -128,8 +128,11 @@ int drv_sta_state(struct ieee80211_local *local,
} else if (old_state == IEEE80211_STA_AUTH &&
new_state == IEEE80211_STA_ASSOC) {
ret = drv_sta_add(local, sdata, &sta->sta);
- if (ret == 0)
+ if (ret == 0) {
sta->uploaded = true;
+ if (rcu_access_pointer(sta->sta.rates))
+ drv_sta_rate_tbl_update(local, sdata, &sta->sta);
+ }
} else if (old_state == IEEE80211_STA_ASSOC &&
new_state == IEEE80211_STA_AUTH) {
drv_sta_remove(local, sdata, &sta->sta);
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 76f303fda3ed..954b932fd7b8 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -941,7 +941,8 @@ int rate_control_set_rates(struct ieee80211_hw *hw,
if (old)
kfree_rcu(old, rcu_head);

- drv_sta_rate_tbl_update(hw_to_local(hw), sta->sdata, pubsta);
+ if (sta->uploaded)
+ drv_sta_rate_tbl_update(hw_to_local(hw), sta->sdata, pubsta);

ieee80211_sta_set_expected_throughput(pubsta, sta_get_expected_throughput(sta));

diff --git a/tools/objtool/orc_gen.c b/tools/objtool/orc_gen.c
index 18384d9be4e1..32a343d6600d 100644
--- a/tools/objtool/orc_gen.c
+++ b/tools/objtool/orc_gen.c
@@ -98,11 +98,6 @@ static int create_orc_entry(struct section *u_sec, struct section *ip_relasec,
struct orc_entry *orc;
struct rela *rela;

- if (!insn_sec->sym) {
- WARN("missing symbol for section %s", insn_sec->name);
- return -1;
- }
-
/* populate ORC data */
orc = (struct orc_entry *)u_sec->data->d_buf + idx;
memcpy(orc, o, sizeof(*orc));
@@ -115,8 +110,32 @@ static int create_orc_entry(struct section *u_sec, struct section *ip_relasec,
}
memset(rela, 0, sizeof(*rela));

- rela->sym = insn_sec->sym;
- rela->addend = insn_off;
+ if (insn_sec->sym) {
+ rela->sym = insn_sec->sym;
+ rela->addend = insn_off;
+ } else {
+ /*
+ * The Clang assembler doesn't produce section symbols, so we
+ * have to reference the function symbol instead:
+ */
+ rela->sym = find_symbol_containing(insn_sec, insn_off);
+ if (!rela->sym) {
+ /*
+ * Hack alert. This happens when we need to reference
+ * the NOP pad insn immediately after the function.
+ */
+ rela->sym = find_symbol_containing(insn_sec,
+ insn_off - 1);
+ }
+ if (!rela->sym) {
+ WARN("missing symbol for insn at offset 0x%lx\n",
+ insn_off);
+ return -1;
+ }
+
+ rela->addend = insn_off - rela->sym->offset;
+ }
+
rela->type = R_X86_64_PC32;
rela->offset = idx * sizeof(int);