diff --git a/Makefile b/Makefile index 8f326d0652a7..db37b39fae69 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 4 PATCHLEVEL = 19 -SUBLEVEL = 174 +SUBLEVEL = 175 EXTRAVERSION = NAME = "People's Front"

@@ -859,12 +859,6 @@ 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 16d71bac0061..2d1f822700a1 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 de6af453a6e1..f4eb4d3b6cab 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi @@ -303,7 +303,7 @@

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 4833dd7e2cc0..0303a243b634 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -132,6 +132,9 @@ 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 cd2aa72e2123..b5354e216b07 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -190,16 +190,6 @@ static inline void lapic_assign_legacy_vector(unsigned int i, bool r) { } #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 84f848c2541a..dd22cffc6b3f 100644 --- a/arch/x86/include/asm/barrier.h +++ b/arch/x86/include/asm/barrier.h @@ -85,4 +85,22 @@ 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 ab8187271d47..e891b33ccfe5 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -41,6 +41,7 @@ #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> @@ -465,6 +466,9 @@ 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 145517934171..b2c7e3bc55d2 100644 --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -31,7 +31,8 @@ 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); }

@@ -43,7 +44,8 @@ __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);

tmpmsk = this_cpu_cpumask_var_ptr(ipi_mask); diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index ed56d2850e96..8e70c2ba21b3 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -48,7 +48,8 @@ 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); }

@@ -59,7 +60,8 @@ __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/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index d2dc734f5bd0..f1e86051aa5f 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -892,6 +892,11 @@ static int has_svm(void) return 0; }

+ if (sev_active()) { + pr_info("KVM is unsupported when running as an SEV guest\n"); + return 0; + } + return 1; }

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index ee3ff0894d09..ef4e8423843f 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -229,9 +229,17 @@ 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 }, @@ -310,6 +318,9 @@ 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 }, @@ -443,8 +454,12 @@ 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 2a83fc31dd47..d2166dfc8b3f 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -3364,6 +3364,12 @@ 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_init(iommu); diff --git a/drivers/md/md.c b/drivers/md/md.c index 80ca13594c18..09f0d8e70b70 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -474,8 +474,10 @@ static void md_submit_flush_data(struct work_struct *ws) * could wait for this and below md_handle_request could wait for those * bios because of suspend check */ + spin_lock_irq(&mddev->lock); mddev->last_flush = mddev->start_flush; mddev->flush_bio = NULL; + spin_unlock_irq(&mddev->lock); wake_up(&mddev->sb_wait);

if (bio->bi_iter.bi_size == 0) { 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 6fa8aa69b418..e04b7fa068af 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1658,7 +1658,11 @@ 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/net/ethernet/marvell/mvpp2/mvpp2_prs.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c index a30eb90ba3d2..dd590086fe6a 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c @@ -29,16 +29,16 @@ static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe) /* Clear entry invalidation bit */ pe->tcam[MVPP2_PRS_TCAM_INV_WORD] &= ~MVPP2_PRS_TCAM_INV_MASK;

- /* Write tcam index - indirect access */ - mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index); - for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++) - mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam[i]); - /* Write sram index - indirect access */ mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index); for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++) mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), pe->sram[i]);

+ /* Write tcam index - indirect access */ + mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index); + for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++) + mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam[i]); + return 0; }

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index a52b2f15f372..82d87d2e280c 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2733,6 +2733,8 @@ 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 5c00d79ac7a1..c9560d8ba3cb 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -1327,14 +1327,17 @@ 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 8e98b4df9b10..42f66718bc18 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -1453,7 +1453,6 @@ 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;

@@ -1463,12 +1462,7 @@ 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/dwc3/core.c b/drivers/usb/dwc3/core.c index 86b1cfbe48a0..e890c26b6c82 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1700,7 +1700,7 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) if (PMSG_IS_AUTO(msg)) break;

- ret = dwc3_core_init(dwc); + ret = dwc3_core_init_for_resume(dwc); if (ret) return ret;

diff --git a/drivers/usb/gadget/legacy/ether.c b/drivers/usb/gadget/legacy/ether.c index 30313b233680..99c7fc0d1d59 100644 --- a/drivers/usb/gadget/legacy/ether.c +++ b/drivers/usb/gadget/legacy/ether.c @@ -403,8 +403,10 @@ 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 537bbcd47c46..22b1de99d02d 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -670,11 +670,16 @@ 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; } @@ -3180,12 +3185,16 @@ 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/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index aeb53ec5cc6a..6b92a57382db 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -126,6 +126,7 @@ struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt) }

usbhs_pipe_clear_without_sequence(pipe, 0, 0); + usbhs_pipe_running(pipe, 0);

__usbhsf_pkt_del(pkt); } diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 46ec30a2c516..07a2c72fc3a7 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -61,6 +61,7 @@ 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 */ @@ -201,6 +202,7 @@ 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 1024aca25221..cdf25a39fca7 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -425,6 +425,8 @@ 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 @@ -1914,6 +1916,10 @@ 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/afs/main.c b/fs/afs/main.c index 107427688edd..8ecb127be63f 100644 --- a/fs/afs/main.c +++ b/fs/afs/main.c @@ -190,7 +190,7 @@ static int __init afs_init(void) goto error_cache; #endif

- ret = register_pernet_subsys(&afs_net_ops); + ret = register_pernet_device(&afs_net_ops); if (ret < 0) goto error_net;

@@ -210,7 +210,7 @@ static int __init afs_init(void) error_proc: afs_fs_exit(); error_fs: - unregister_pernet_subsys(&afs_net_ops); + unregister_pernet_device(&afs_net_ops); error_net: #ifdef CONFIG_AFS_FSCACHE fscache_unregister_netfs(&afs_cache_netfs); @@ -241,7 +241,7 @@ static void __exit afs_exit(void)

proc_remove(afs_proc_symlink); afs_fs_exit(); - unregister_pernet_subsys(&afs_net_ops); + unregister_pernet_device(&afs_net_ops); #ifdef CONFIG_AFS_FSCACHE fscache_unregister_netfs(&afs_cache_netfs); #endif diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index f6e3c0089825..c7e162c9383d 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -840,6 +840,7 @@ static int cifs_d_revalidate(struct dentry *direntry, unsigned int flags) { struct inode *inode; + int rc;

if (flags & LOOKUP_RCU) return -ECHILD; @@ -849,8 +850,25 @@ 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 48ed43e6aee8..8a44d59947b7 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -222,7 +222,7 @@ 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 7a24f91af29e..3a2fea8d211d 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -654,9 +654,10 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset,

mutex_unlock(&hugetlb_fault_mutex_table[hash]);

+ set_page_huge_active(page); /* * unlock_page because locked by add_to_page_cache() - * page_put due to reference from alloc_huge_page() + * put_page() due to reference from alloc_huge_page() */ unlock_page(page); put_page(page); diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c index 800bcad67325..25be2ab6ff6c 100644 --- a/fs/overlayfs/dir.c +++ b/fs/overlayfs/dir.c @@ -946,8 +946,8 @@ static char *ovl_get_redirect(struct dentry *dentry, bool abs_redirect)

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 d34112fb3d52..cae7fd680448 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -541,6 +541,9 @@ 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/include/linux/msi.h b/include/linux/msi.h index be8ec813dbfb..5dd171849a27 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -118,6 +118,12 @@ struct msi_desc { list_for_each_entry((desc), dev_to_msi_list((dev)), list) #define for_each_msi_entry_safe(desc, tmp, dev) \ list_for_each_entry_safe((desc), (tmp), dev_to_msi_list((dev)), list) +#define for_each_msi_vector(desc, __irq, dev) \ + for_each_msi_entry((desc), (dev)) \ + if ((desc)->irq) \ + for (__irq = (desc)->irq; \ + __irq < ((desc)->irq + (desc)->nvec_used); \ + __irq++)

#ifdef CONFIG_PCI_MSI #define first_pci_msi_entry(pdev) first_msi_entry(&(pdev)->dev) diff --git a/kernel/Makefile b/kernel/Makefile index ad4b324d8906..01bc1d39b400 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -92,7 +92,6 @@ 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/irq/msi.c b/kernel/irq/msi.c index dc1186ce3ecd..604974f2afb1 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -437,22 +437,22 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,

can_reserve = msi_check_reservation_mode(domain, info, dev);

- for_each_msi_entry(desc, dev) { - virq = desc->irq; - if (desc->nvec_used == 1) - dev_dbg(dev, "irq %d for MSI\n", virq); - else + /* + * This flag is set by the PCI layer as we need to activate + * the MSI entries before the PCI layer enables MSI in the + * card. Otherwise the card latches a random msi message. + */ + if (!(info->flags & MSI_FLAG_ACTIVATE_EARLY)) + goto skip_activate; + + for_each_msi_vector(desc, i, dev) { + if (desc->irq == i) { + virq = desc->irq; dev_dbg(dev, "irq [%d-%d] for MSI\n", virq, virq + desc->nvec_used - 1); - /* - * This flag is set by the PCI layer as we need to activate - * the MSI entries before the PCI layer enables MSI in the - * card. Otherwise the card latches a random msi message. - */ - if (!(info->flags & MSI_FLAG_ACTIVATE_EARLY)) - continue; + }

- irq_data = irq_domain_get_irq_data(domain, desc->irq); + irq_data = irq_domain_get_irq_data(domain, i); if (!can_reserve) { irqd_clr_can_reserve(irq_data); if (domain->flags & IRQ_DOMAIN_MSI_NOMASK_QUIRK) @@ -463,28 +463,24 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev, goto cleanup; }

+skip_activate: /* * If these interrupts use reservation mode, clear the activated bit * so request_irq() will assign the final vector. */ if (can_reserve) { - for_each_msi_entry(desc, dev) { - irq_data = irq_domain_get_irq_data(domain, desc->irq); + for_each_msi_vector(desc, i, dev) { + irq_data = irq_domain_get_irq_data(domain, i); irqd_clr_activated(irq_data); } } return 0;

cleanup: - for_each_msi_entry(desc, dev) { - struct irq_data *irqd; - - if (desc->irq == virq) - break; - - irqd = irq_domain_get_irq_data(domain, desc->irq); - if (irqd_is_activated(irqd)) - irq_domain_deactivate_irq(irqd); + for_each_msi_vector(desc, i, dev) { + irq_data = irq_domain_get_irq_data(domain, i); + if (irqd_is_activated(irq_data)) + irq_domain_deactivate_irq(irq_data); } msi_domain_free_irqs(domain, dev); return ret; diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 2161f519d481..6d02b78fde01 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1945,6 +1945,10 @@ 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 d74afc256c07..cf9e2bbffdc1 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2278,7 +2278,7 @@ 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); @@ -2291,7 +2291,6 @@ 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; } @@ -2300,19 +2299,29 @@ 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)) @@ -2322,7 +2331,7 @@ 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); /* * No need to double call mmu_notifier->invalidate_range() callback. diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 0b60ab396696..df89aed02302 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -68,6 +68,21 @@ DEFINE_SPINLOCK(hugetlb_lock); static int num_fault_mutexes; struct mutex *hugetlb_fault_mutex_table ____cacheline_aligned_in_smp;

+static inline bool PageHugeFreed(struct page *head) +{ + return page_private(head + 4) == -1UL; +} + +static inline void SetPageHugeFreed(struct page *head) +{ + set_page_private(head + 4, -1UL); +} + +static inline void ClearPageHugeFreed(struct page *head) +{ + set_page_private(head + 4, 0); +} + /* Forward declaration */ static int hugetlb_acct_memory(struct hstate *h, long delta);

@@ -858,6 +873,7 @@ static void enqueue_huge_page(struct hstate *h, struct page *page) list_move(&page->lru, &h->hugepage_freelists[nid]); h->free_huge_pages++; h->free_huge_pages_node[nid]++; + SetPageHugeFreed(page); }

static struct page *dequeue_huge_page_node_exact(struct hstate *h, int nid) @@ -875,6 +891,7 @@ static struct page *dequeue_huge_page_node_exact(struct hstate *h, int nid) return NULL; list_move(&page->lru, &h->hugepage_activelist); set_page_refcounted(page); + ClearPageHugeFreed(page); h->free_huge_pages--; h->free_huge_pages_node[nid]--; return page; @@ -1196,12 +1213,11 @@ 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]); @@ -1305,6 +1321,7 @@ static void prep_new_huge_page(struct hstate *h, struct page *page, int nid) set_hugetlb_cgroup(page, NULL); h->nr_huge_pages++; h->nr_huge_pages_node[nid]++; + ClearPageHugeFreed(page); spin_unlock(&hugetlb_lock); }

@@ -1500,6 +1517,7 @@ int dissolve_free_huge_page(struct page *page) { int rc = -EBUSY;

+retry: /* Not to disrupt normal path by vainly holding hugetlb_lock */ if (!PageHuge(page)) return 0; @@ -1516,6 +1534,26 @@ int dissolve_free_huge_page(struct page *page) int nid = page_to_nid(head); if (h->free_huge_pages - h->resv_huge_pages == 0) goto out; + + /* + * We should make sure that the page is already on the free list + * when it is dissolved. + */ + if (unlikely(!PageHugeFreed(head))) { + spin_unlock(&hugetlb_lock); + cond_resched(); + + /* + * Theoretically, we should return -EBUSY when we + * encounter this race. In fact, we have a chance + * to successfully dissolve the page if we do a + * retry. Because the race window is quite small. + * If we seize this opportunity, it is an optimization + * for increasing the success rate of dissolving page. + */ + goto retry; + } + /* * Move PageHWPoison flag from head page to the raw error page, * which makes any subpages rather than the error page reusable. @@ -4940,9 +4978,9 @@ 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/mm/memblock.c b/mm/memblock.c index bb4e32c6b19e..4f7c5c3c442c 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -234,14 +234,6 @@ __memblock_find_range_top_down(phys_addr_t start, phys_addr_t end, * * Find @size free area aligned to @align in the specified range and node. * - * When allocation direction is bottom-up, the @start should be greater - * than the end of the kernel image. Otherwise, it will be trimmed. The - * reason is that we want the bottom-up allocation just near the kernel - * image so it is highly likely that the allocated memory and the kernel - * will reside in the same node. - * - * If bottom-up allocation failed, will try to allocate memory top-down. - * * Return: * Found address on success, 0 on failure. */ @@ -250,8 +242,6 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t size, phys_addr_t end, int nid, enum memblock_flags flags) { - phys_addr_t kernel_end, ret; - /* pump up @end */ if (end == MEMBLOCK_ALLOC_ACCESSIBLE) end = memblock.current_limit; @@ -259,40 +249,13 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t size, /* avoid allocating the first page */ start = max_t(phys_addr_t, start, PAGE_SIZE); end = max(start, end); - kernel_end = __pa_symbol(_end); - - /* - * try bottom-up allocation only when bottom-up mode - * is set and @end is above the kernel image. - */ - if (memblock_bottom_up() && end > kernel_end) { - phys_addr_t bottom_up_start; - - /* make sure we will allocate above the kernel */ - bottom_up_start = max(start, kernel_end);

- /* ok, try bottom-up allocation first */ - ret = __memblock_find_range_bottom_up(bottom_up_start, end, - size, align, nid, flags); - if (ret) - return ret; - - /* - * we always limit bottom-up allocation above the kernel, - * but top-down allocation doesn't have the limit, so - * retrying top-down allocation may succeed when bottom-up - * allocation failed. - * - * bottom-up allocation is expected to be fail very rarely, - * so we use WARN_ONCE() here to see the stack trace if - * fail happens. - */ - WARN_ONCE(IS_ENABLED(CONFIG_MEMORY_HOTREMOVE), - "memblock: bottom-up allocation failed, memory hotremove may be affected\n"); - } - - return __memblock_find_range_top_down(start, end, size, align, nid, - flags); + if (memblock_bottom_up()) + return __memblock_find_range_bottom_up(start, end, size, align, + nid, flags); + else + return __memblock_find_range_top_down(start, end, size, align, + nid, flags); }

/** diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 1cad731039c3..bdd073ea300a 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -330,7 +330,7 @@ static int ip_tunnel_bind_dev(struct net_device *dev) }

dev->needed_headroom = t_hlen + hlen; - mtu -= (dev->hard_header_len + t_hlen); + mtu -= t_hlen;

if (mtu < IPV4_MIN_MTU) mtu = IPV4_MIN_MTU; @@ -360,7 +360,7 @@ static struct ip_tunnel *ip_tunnel_create(struct net *net, nt = netdev_priv(dev); t_hlen = nt->hlen + sizeof(struct iphdr); dev->min_mtu = ETH_MIN_MTU; - dev->max_mtu = IP_MAX_MTU - dev->hard_header_len - t_hlen; + dev->max_mtu = IP_MAX_MTU - t_hlen; ip_tunnel_add(itn, nt); return nt;

@@ -502,12 +502,11 @@ static int tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb, const struct iphdr *inner_iph) { struct ip_tunnel *tunnel = netdev_priv(dev); - int pkt_size = skb->len - tunnel->hlen - dev->hard_header_len; + int pkt_size = skb->len - tunnel->hlen; int mtu;

if (df) - mtu = dst_mtu(&rt->dst) - dev->hard_header_len - - sizeof(struct iphdr) - tunnel->hlen; + mtu = dst_mtu(&rt->dst) - (sizeof(struct iphdr) + tunnel->hlen); else mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;

@@ -935,7 +934,7 @@ int __ip_tunnel_change_mtu(struct net_device *dev, int new_mtu, bool strict) { struct ip_tunnel *tunnel = netdev_priv(dev); int t_hlen = tunnel->hlen + sizeof(struct iphdr); - int max_mtu = IP_MAX_MTU - dev->hard_header_len - t_hlen; + int max_mtu = IP_MAX_MTU - t_hlen;

if (new_mtu < ETH_MIN_MTU) return -EINVAL; @@ -1112,10 +1111,9 @@ int ip_tunnel_newlink(struct net_device *dev, struct nlattr *tb[],

mtu = ip_tunnel_bind_dev(dev); if (tb[IFLA_MTU]) { - unsigned int max = IP_MAX_MTU - dev->hard_header_len - nt->hlen; + unsigned int max = IP_MAX_MTU - (nt->hlen + sizeof(struct iphdr));

- mtu = clamp(dev->mtu, (unsigned int)ETH_MIN_MTU, - (unsigned int)(max - sizeof(struct iphdr))); + mtu = clamp(dev->mtu, (unsigned int)ETH_MIN_MTU, max); }

err = dev_set_mtu(dev, mtu); 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/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index 57f835d2442e..fb7e3fffcb5e 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -1010,7 +1010,7 @@ static int __init af_rxrpc_init(void) goto error_security; }

- ret = register_pernet_subsys(&rxrpc_net_ops); + ret = register_pernet_device(&rxrpc_net_ops); if (ret) goto error_pernet;

@@ -1055,7 +1055,7 @@ static int __init af_rxrpc_init(void) error_sock: proto_unregister(&rxrpc_proto); error_proto: - unregister_pernet_subsys(&rxrpc_net_ops); + unregister_pernet_device(&rxrpc_net_ops); error_pernet: rxrpc_exit_security(); error_security: @@ -1077,7 +1077,7 @@ static void __exit af_rxrpc_exit(void) unregister_key_type(&key_type_rxrpc); sock_unregister(PF_RXRPC); proto_unregister(&rxrpc_proto); - unregister_pernet_subsys(&rxrpc_net_ops); + unregister_pernet_device(&rxrpc_net_ops); ASSERTCMP(atomic_read(&rxrpc_n_tx_skbs), ==, 0); ASSERTCMP(atomic_read(&rxrpc_n_rx_skbs), ==, 0);