diff options
| -rw-r--r-- | 0000_README | 4 | ||||
| -rw-r--r-- | 1184_linux-5.4.185.patch | 1364 |
2 files changed, 1368 insertions, 0 deletions
diff --git a/0000_README b/0000_README index fd6eed23..65389f5e 100644 --- a/0000_README +++ b/0000_README @@ -779,6 +779,10 @@ Patch: 1183_linux-5.4.184.patch From: http://www.kernel.org Desc: Linux 5.4.184 +Patch: 1184_linux-5.4.185.patch +From: http://www.kernel.org +Desc: Linux 5.4.185 + Patch: 1500_XATTR_USER_PREFIX.patch From: https://bugs.gentoo.org/show_bug.cgi?id=470644 Desc: Support for namespace user.pax.* on tmpfs. diff --git a/1184_linux-5.4.185.patch b/1184_linux-5.4.185.patch new file mode 100644 index 00000000..ee7901f9 --- /dev/null +++ b/1184_linux-5.4.185.patch @@ -0,0 +1,1364 @@ +diff --git a/Makefile b/Makefile +index e914e1a8a7d2c..bd3bdf86b992e 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,7 +1,7 @@ + # SPDX-License-Identifier: GPL-2.0 + VERSION = 5 + PATCHLEVEL = 4 +-SUBLEVEL = 184 ++SUBLEVEL = 185 + EXTRAVERSION = + NAME = Kleptomaniac Octopus + +diff --git a/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi b/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi +index 996e006e06c25..f310f4d3bcc7c 100644 +--- a/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi ++++ b/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi +@@ -118,7 +118,7 @@ + }; + + pinctrl_fwqspid_default: fwqspid_default { +- function = "FWQSPID"; ++ function = "FWSPID"; + groups = "FWQSPID"; + }; + +diff --git a/arch/arm/include/asm/spectre.h b/arch/arm/include/asm/spectre.h +index d1fa5607d3aa3..85f9e538fb325 100644 +--- a/arch/arm/include/asm/spectre.h ++++ b/arch/arm/include/asm/spectre.h +@@ -25,7 +25,13 @@ enum { + SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8), + }; + ++#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES + void spectre_v2_update_state(unsigned int state, unsigned int methods); ++#else ++static inline void spectre_v2_update_state(unsigned int state, ++ unsigned int methods) ++{} ++#endif + + int spectre_bhb_update_vectors(unsigned int method); + +diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S +index 94d25425b7bce..3d65fa56a0e5d 100644 +--- a/arch/arm/kernel/entry-armv.S ++++ b/arch/arm/kernel/entry-armv.S +@@ -1043,9 +1043,9 @@ vector_bhb_loop8_\name: + + @ bhb workaround + mov r0, #8 +-1: b . + 4 ++3: b . + 4 + subs r0, r0, #1 +- bne 1b ++ bne 3b + dsb + isb + b 2b +diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts +index 16e73597bb78c..2e8239d489f82 100644 +--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts ++++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts +@@ -18,6 +18,7 @@ + + aliases { + spi0 = &spi0; ++ ethernet0 = ð0; + ethernet1 = ð1; + }; + +@@ -137,7 +138,9 @@ + /* + * U-Boot port for Turris Mox has a bug which always expects that "ranges" DT property + * contains exactly 2 ranges with 3 (child) address cells, 2 (parent) address cells and +- * 2 size cells and also expects that the second range starts at 16 MB offset. If these ++ * 2 size cells and also expects that the second range starts at 16 MB offset. Also it ++ * expects that first range uses same address for PCI (child) and CPU (parent) cells (so ++ * no remapping) and that this address is the lowest from all specified ranges. If these + * conditions are not met then U-Boot crashes during loading kernel DTB file. PCIe address + * space is 128 MB long, so the best split between MEM and IO is to use fixed 16 MB window + * for IO and the rest 112 MB (64+32+16) for MEM, despite that maximal IO size is just 64 kB. +@@ -146,6 +149,9 @@ + * https://source.denx.de/u-boot/u-boot/-/commit/cb2ddb291ee6fcbddd6d8f4ff49089dfe580f5d7 + * https://source.denx.de/u-boot/u-boot/-/commit/c64ac3b3185aeb3846297ad7391fc6df8ecd73bf + * https://source.denx.de/u-boot/u-boot/-/commit/4a82fca8e330157081fc132a591ebd99ba02ee33 ++ * Bug related to requirement of same child and parent addresses for first range is fixed ++ * in U-Boot version 2022.04 by following commit: ++ * https://source.denx.de/u-boot/u-boot/-/commit/1fd54253bca7d43d046bba4853fe5fafd034bc17 + */ + #address-cells = <3>; + #size-cells = <2>; +diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi +index 3d15e4ab3f53a..9405d9c619ca6 100644 +--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi ++++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi +@@ -495,7 +495,7 @@ + * (totaling 127 MiB) for MEM. + */ + ranges = <0x82000000 0 0xe8000000 0 0xe8000000 0 0x07f00000 /* Port 0 MEM */ +- 0x81000000 0 0xefff0000 0 0xefff0000 0 0x00010000>; /* Port 0 IO */ ++ 0x81000000 0 0x00000000 0 0xefff0000 0 0x00010000>; /* Port 0 IO */ + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie_intc 0>, + <0 0 0 2 &pcie_intc 1>, +diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c +index 6bf5b16743843..a963b761e1a39 100644 +--- a/arch/riscv/kernel/module.c ++++ b/arch/riscv/kernel/module.c +@@ -13,6 +13,19 @@ + #include <asm/pgtable.h> + #include <asm/sections.h> + ++/* ++ * The auipc+jalr instruction pair can reach any PC-relative offset ++ * in the range [-2^31 - 2^11, 2^31 - 2^11) ++ */ ++static bool riscv_insn_valid_32bit_offset(ptrdiff_t val) ++{ ++#ifdef CONFIG_32BIT ++ return true; ++#else ++ return (-(1L << 31) - (1L << 11)) <= val && val < ((1L << 31) - (1L << 11)); ++#endif ++} ++ + static int apply_r_riscv_32_rela(struct module *me, u32 *location, Elf_Addr v) + { + if (v != (u32)v) { +@@ -95,7 +108,7 @@ static int apply_r_riscv_pcrel_hi20_rela(struct module *me, u32 *location, + ptrdiff_t offset = (void *)v - (void *)location; + s32 hi20; + +- if (offset != (s32)offset) { ++ if (!riscv_insn_valid_32bit_offset(offset)) { + pr_err( + "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n", + me->name, (long long)v, location); +@@ -197,10 +210,9 @@ static int apply_r_riscv_call_plt_rela(struct module *me, u32 *location, + Elf_Addr v) + { + ptrdiff_t offset = (void *)v - (void *)location; +- s32 fill_v = offset; + u32 hi20, lo12; + +- if (offset != fill_v) { ++ if (!riscv_insn_valid_32bit_offset(offset)) { + /* Only emit the plt entry if offset over 32-bit range */ + if (IS_ENABLED(CONFIG_MODULE_SECTIONS)) { + offset = module_emit_plt_entry(me, v); +@@ -224,10 +236,9 @@ static int apply_r_riscv_call_rela(struct module *me, u32 *location, + Elf_Addr v) + { + ptrdiff_t offset = (void *)v - (void *)location; +- s32 fill_v = offset; + u32 hi20, lo12; + +- if (offset != fill_v) { ++ if (!riscv_insn_valid_32bit_offset(offset)) { + pr_err( + "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n", + me->name, (long long)v, location); +diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h +index f48905f796e9d..56eb9a6524e96 100644 +--- a/arch/x86/include/asm/cpufeatures.h ++++ b/arch/x86/include/asm/cpufeatures.h +@@ -96,6 +96,7 @@ + #define X86_FEATURE_SYSCALL32 ( 3*32+14) /* "" syscall in IA32 userspace */ + #define X86_FEATURE_SYSENTER32 ( 3*32+15) /* "" sysenter in IA32 userspace */ + #define X86_FEATURE_REP_GOOD ( 3*32+16) /* REP microcode works well */ ++#define X86_FEATURE_SME_COHERENT ( 3*32+17) /* "" AMD hardware-enforced cache coherency */ + #define X86_FEATURE_LFENCE_RDTSC ( 3*32+18) /* "" LFENCE synchronizes RDTSC */ + #define X86_FEATURE_ACC_POWER ( 3*32+19) /* AMD Accumulated Power Mechanism */ + #define X86_FEATURE_NOPL ( 3*32+20) /* The NOPL (0F 1F) instructions */ +@@ -107,6 +108,7 @@ + #define X86_FEATURE_EXTD_APICID ( 3*32+26) /* Extended APICID (8 bits) */ + #define X86_FEATURE_AMD_DCM ( 3*32+27) /* AMD multi-node processor */ + #define X86_FEATURE_APERFMPERF ( 3*32+28) /* P-State hardware coordination feedback capability (APERF/MPERF MSRs) */ ++/* free ( 3*32+29) */ + #define X86_FEATURE_NONSTOP_TSC_S3 ( 3*32+30) /* TSC doesn't stop in S3 state */ + #define X86_FEATURE_TSC_KNOWN_FREQ ( 3*32+31) /* TSC has known frequency */ + +diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c +index adf9b71386eff..53004dbd55c47 100644 +--- a/arch/x86/kernel/cpu/scattered.c ++++ b/arch/x86/kernel/cpu/scattered.c +@@ -41,6 +41,7 @@ static const struct cpuid_bit cpuid_bits[] = { + { X86_FEATURE_MBA, CPUID_EBX, 6, 0x80000008, 0 }, + { X86_FEATURE_SME, CPUID_EAX, 0, 0x8000001f, 0 }, + { X86_FEATURE_SEV, CPUID_EAX, 1, 0x8000001f, 0 }, ++ { X86_FEATURE_SME_COHERENT, CPUID_EAX, 10, 0x8000001f, 0 }, + { 0, 0, 0, 0, 0 } + }; + +diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c +index 2f84509f28289..125970286f289 100644 +--- a/arch/x86/kvm/svm.c ++++ b/arch/x86/kvm/svm.c +@@ -1904,7 +1904,8 @@ static void sev_clflush_pages(struct page *pages[], unsigned long npages) + uint8_t *page_virtual; + unsigned long i; + +- if (npages == 0 || pages == NULL) ++ if (this_cpu_has(X86_FEATURE_SME_COHERENT) || npages == 0 || ++ pages == NULL) + return; + + for (i = 0; i < npages; i++) { +diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c +index 281e584cfe39e..d61313f5c5b98 100644 +--- a/arch/x86/mm/pageattr.c ++++ b/arch/x86/mm/pageattr.c +@@ -1967,7 +1967,7 @@ static int __set_memory_enc_dec(unsigned long addr, int numpages, bool enc) + /* + * Before changing the encryption attribute, we need to flush caches. + */ +- cpa_flush(&cpa, 1); ++ cpa_flush(&cpa, !this_cpu_has(X86_FEATURE_SME_COHERENT)); + + ret = __change_page_attr_set_clr(&cpa, 1); + +diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c +index 816eb2db73080..4b3645e648ee9 100644 +--- a/drivers/block/virtio_blk.c ++++ b/drivers/block/virtio_blk.c +@@ -980,9 +980,15 @@ static int virtblk_probe(struct virtio_device *vdev) + + virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, + &v); ++ ++ /* ++ * max_discard_seg == 0 is out of spec but we always ++ * handled it. ++ */ ++ if (!v) ++ v = sg_elems - 2; + blk_queue_max_discard_segments(q, +- min_not_zero(v, +- MAX_DISCARD_SEGMENTS)); ++ min(v, MAX_DISCARD_SEGMENTS)); + + blk_queue_flag_set(QUEUE_FLAG_DISCARD, q); + } +diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c +index a250f59708d85..888965bb93edf 100644 +--- a/drivers/clk/qcom/gdsc.c ++++ b/drivers/clk/qcom/gdsc.c +@@ -1,6 +1,6 @@ + // SPDX-License-Identifier: GPL-2.0-only + /* +- * Copyright (c) 2015, 2017-2018, The Linux Foundation. All rights reserved. ++ * Copyright (c) 2015, 2017-2018, 2022, The Linux Foundation. All rights reserved. + */ + + #include <linux/bitops.h> +@@ -31,9 +31,14 @@ + #define CFG_GDSCR_OFFSET 0x4 + + /* Wait 2^n CXO cycles between all states. Here, n=2 (4 cycles). */ +-#define EN_REST_WAIT_VAL (0x2 << 20) +-#define EN_FEW_WAIT_VAL (0x8 << 16) +-#define CLK_DIS_WAIT_VAL (0x2 << 12) ++#define EN_REST_WAIT_VAL 0x2 ++#define EN_FEW_WAIT_VAL 0x8 ++#define CLK_DIS_WAIT_VAL 0x2 ++ ++/* Transition delay shifts */ ++#define EN_REST_WAIT_SHIFT 20 ++#define EN_FEW_WAIT_SHIFT 16 ++#define CLK_DIS_WAIT_SHIFT 12 + + #define RETAIN_MEM BIT(14) + #define RETAIN_PERIPH BIT(13) +@@ -308,7 +313,18 @@ static int gdsc_init(struct gdsc *sc) + */ + mask = HW_CONTROL_MASK | SW_OVERRIDE_MASK | + EN_REST_WAIT_MASK | EN_FEW_WAIT_MASK | CLK_DIS_WAIT_MASK; +- val = EN_REST_WAIT_VAL | EN_FEW_WAIT_VAL | CLK_DIS_WAIT_VAL; ++ ++ if (!sc->en_rest_wait_val) ++ sc->en_rest_wait_val = EN_REST_WAIT_VAL; ++ if (!sc->en_few_wait_val) ++ sc->en_few_wait_val = EN_FEW_WAIT_VAL; ++ if (!sc->clk_dis_wait_val) ++ sc->clk_dis_wait_val = CLK_DIS_WAIT_VAL; ++ ++ val = sc->en_rest_wait_val << EN_REST_WAIT_SHIFT | ++ sc->en_few_wait_val << EN_FEW_WAIT_SHIFT | ++ sc->clk_dis_wait_val << CLK_DIS_WAIT_SHIFT; ++ + ret = regmap_update_bits(sc->regmap, sc->gdscr, mask, val); + if (ret) + return ret; +diff --git a/drivers/clk/qcom/gdsc.h b/drivers/clk/qcom/gdsc.h +index 64cdc8cf0d4d2..907396ccb83fb 100644 +--- a/drivers/clk/qcom/gdsc.h ++++ b/drivers/clk/qcom/gdsc.h +@@ -1,6 +1,6 @@ + /* SPDX-License-Identifier: GPL-2.0-only */ + /* +- * Copyright (c) 2015, 2017-2018, The Linux Foundation. All rights reserved. ++ * Copyright (c) 2015, 2017-2018, 2022, The Linux Foundation. All rights reserved. + */ + + #ifndef __QCOM_GDSC_H__ +@@ -21,6 +21,9 @@ struct reset_controller_dev; + * @cxcs: offsets of branch registers to toggle mem/periph bits in + * @cxc_count: number of @cxcs + * @pwrsts: Possible powerdomain power states ++ * @en_rest_wait_val: transition delay value for receiving enr ack signal ++ * @en_few_wait_val: transition delay value for receiving enf ack signal ++ * @clk_dis_wait_val: transition delay value for halting clock + * @resets: ids of resets associated with this gdsc + * @reset_count: number of @resets + * @rcdev: reset controller +@@ -34,6 +37,9 @@ struct gdsc { + unsigned int clamp_io_ctrl; + unsigned int *cxcs; + unsigned int cxc_count; ++ unsigned int en_rest_wait_val; ++ unsigned int en_few_wait_val; ++ unsigned int clk_dis_wait_val; + const u8 pwrsts; + /* Powerdomain allowable state bitfields */ + #define PWRSTS_OFF BIT(0) +diff --git a/drivers/gpio/gpio-ts4900.c b/drivers/gpio/gpio-ts4900.c +index 1da8d05863295..410452306bf7b 100644 +--- a/drivers/gpio/gpio-ts4900.c ++++ b/drivers/gpio/gpio-ts4900.c +@@ -1,7 +1,7 @@ + /* + * Digital I/O driver for Technologic Systems I2C FPGA Core + * +- * Copyright (C) 2015 Technologic Systems ++ * Copyright (C) 2015, 2018 Technologic Systems + * Copyright (C) 2016 Savoir-Faire Linux + * + * This program is free software; you can redistribute it and/or +@@ -52,19 +52,33 @@ static int ts4900_gpio_direction_input(struct gpio_chip *chip, + { + struct ts4900_gpio_priv *priv = gpiochip_get_data(chip); + +- /* +- * This will clear the output enable bit, the other bits are +- * dontcare when this is cleared ++ /* Only clear the OE bit here, requires a RMW. Prevents potential issue ++ * with OE and data getting to the physical pin at different times. + */ +- return regmap_write(priv->regmap, offset, 0); ++ return regmap_update_bits(priv->regmap, offset, TS4900_GPIO_OE, 0); + } + + static int ts4900_gpio_direction_output(struct gpio_chip *chip, + unsigned int offset, int value) + { + struct ts4900_gpio_priv *priv = gpiochip_get_data(chip); ++ unsigned int reg; + int ret; + ++ /* If changing from an input to an output, we need to first set the ++ * proper data bit to what is requested and then set OE bit. This ++ * prevents a glitch that can occur on the IO line ++ */ ++ regmap_read(priv->regmap, offset, ®); ++ if (!(reg & TS4900_GPIO_OE)) { ++ if (value) ++ reg = TS4900_GPIO_OUT; ++ else ++ reg &= ~TS4900_GPIO_OUT; ++ ++ regmap_write(priv->regmap, offset, reg); ++ } ++ + if (value) + ret = regmap_write(priv->regmap, offset, TS4900_GPIO_OE | + TS4900_GPIO_OUT); +diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h +index 345b28b0a80a1..dc4300a7b019b 100644 +--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h ++++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h +@@ -114,10 +114,10 @@ + /* format 13 is semi-planar YUV411 VUVU */ + #define SUN8I_MIXER_FBFMT_YUV411 14 + /* format 15 doesn't exist */ +-/* format 16 is P010 YVU */ +-#define SUN8I_MIXER_FBFMT_P010_YUV 17 +-/* format 18 is P210 YVU */ +-#define SUN8I_MIXER_FBFMT_P210_YUV 19 ++#define SUN8I_MIXER_FBFMT_P010_YUV 16 ++/* format 17 is P010 YVU */ ++#define SUN8I_MIXER_FBFMT_P210_YUV 18 ++/* format 19 is P210 YVU */ + /* format 20 is packed YVU444 10-bit */ + /* format 21 is packed YUV444 10-bit */ + +diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c +index cdd57ce55b2fa..9044faf0050a1 100644 +--- a/drivers/mmc/host/meson-gx-mmc.c ++++ b/drivers/mmc/host/meson-gx-mmc.c +@@ -174,6 +174,8 @@ struct meson_host { + int irq; + + bool vqmmc_enabled; ++ bool needs_pre_post_req; ++ + }; + + #define CMD_CFG_LENGTH_MASK GENMASK(8, 0) +@@ -655,6 +657,8 @@ static void meson_mmc_request_done(struct mmc_host *mmc, + struct meson_host *host = mmc_priv(mmc); + + host->cmd = NULL; ++ if (host->needs_pre_post_req) ++ meson_mmc_post_req(mmc, mrq, 0); + mmc_request_done(host->mmc, mrq); + } + +@@ -872,7 +876,7 @@ static int meson_mmc_validate_dram_access(struct mmc_host *mmc, struct mmc_data + static void meson_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) + { + struct meson_host *host = mmc_priv(mmc); +- bool needs_pre_post_req = mrq->data && ++ host->needs_pre_post_req = mrq->data && + !(mrq->data->host_cookie & SD_EMMC_PRE_REQ_DONE); + + /* +@@ -888,22 +892,19 @@ static void meson_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) + } + } + +- if (needs_pre_post_req) { ++ if (host->needs_pre_post_req) { + meson_mmc_get_transfer_mode(mmc, mrq); + if (!meson_mmc_desc_chain_mode(mrq->data)) +- needs_pre_post_req = false; ++ host->needs_pre_post_req = false; + } + +- if (needs_pre_post_req) ++ if (host->needs_pre_post_req) + meson_mmc_pre_req(mmc, mrq); + + /* Stop execution */ + writel(0, host->regs + SD_EMMC_START); + + meson_mmc_start_cmd(mmc, mrq->sbc ?: mrq->cmd); +- +- if (needs_pre_post_req) +- meson_mmc_post_req(mmc, mrq, 0); + } + + static void meson_mmc_read_resp(struct mmc_host *mmc, struct mmc_command *cmd) +diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c +index 164988f3b4fab..a2da09da4907b 100644 +--- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c ++++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c +@@ -41,6 +41,13 @@ + void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) + { + struct bcmgenet_priv *priv = netdev_priv(dev); ++ struct device *kdev = &priv->pdev->dev; ++ ++ if (!device_can_wakeup(kdev)) { ++ wol->supported = 0; ++ wol->wolopts = 0; ++ return; ++ } + + wol->supported = WAKE_MAGIC | WAKE_MAGICSECURE; + wol->wolopts = priv->wolopts; +diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c +index 0dc52cf5367e7..480d2ca369e6b 100644 +--- a/drivers/net/ethernet/cadence/macb_main.c ++++ b/drivers/net/ethernet/cadence/macb_main.c +@@ -1283,7 +1283,14 @@ static int macb_poll(struct napi_struct *napi, int budget) + if (work_done < budget) { + napi_complete_done(napi, work_done); + +- /* Packets received while interrupts were disabled */ ++ /* RSR bits only seem to propagate to raise interrupts when ++ * interrupts are enabled at the time, so if bits are already ++ * set due to packets received while interrupts were disabled, ++ * they will not cause another interrupt to be generated when ++ * interrupts are re-enabled. ++ * Check for this case here. This has been seen to happen ++ * around 30% of the time under heavy network load. ++ */ + status = macb_readl(bp, RSR); + if (status) { + if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE) +@@ -1291,6 +1298,22 @@ static int macb_poll(struct napi_struct *napi, int budget) + napi_reschedule(napi); + } else { + queue_writel(queue, IER, bp->rx_intr_mask); ++ ++ /* In rare cases, packets could have been received in ++ * the window between the check above and re-enabling ++ * interrupts. Therefore, a double-check is required ++ * to avoid losing a wakeup. This can potentially race ++ * with the interrupt handler doing the same actions ++ * if an interrupt is raised just after enabling them, ++ * but this should be harmless. ++ */ ++ status = macb_readl(bp, RSR); ++ if (unlikely(status)) { ++ queue_writel(queue, IDR, bp->rx_intr_mask); ++ if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE) ++ queue_writel(queue, ISR, MACB_BIT(RCOMP)); ++ napi_schedule(napi); ++ } + } + } + +diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c +index 3c8e4e2efc070..01a7255e86c92 100644 +--- a/drivers/net/ethernet/freescale/gianfar_ethtool.c ++++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c +@@ -1489,6 +1489,7 @@ static int gfar_get_ts_info(struct net_device *dev, + ptp_node = of_find_compatible_node(NULL, NULL, "fsl,etsec-ptp"); + if (ptp_node) { + ptp_dev = of_find_device_by_node(ptp_node); ++ of_node_put(ptp_node); + if (ptp_dev) + ptp = platform_get_drvdata(ptp_dev); + } +diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +index 1a7aa078f3510..6c7b364d0bf03 100644 +--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c ++++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +@@ -130,11 +130,8 @@ static int cmd_alloc_index(struct mlx5_cmd *cmd) + + static void cmd_free_index(struct mlx5_cmd *cmd, int idx) + { +- unsigned long flags; +- +- spin_lock_irqsave(&cmd->alloc_lock, flags); ++ lockdep_assert_held(&cmd->alloc_lock); + set_bit(idx, &cmd->bitmask); +- spin_unlock_irqrestore(&cmd->alloc_lock, flags); + } + + static void cmd_ent_get(struct mlx5_cmd_work_ent *ent) +@@ -144,17 +141,21 @@ static void cmd_ent_get(struct mlx5_cmd_work_ent *ent) + + static void cmd_ent_put(struct mlx5_cmd_work_ent *ent) + { ++ struct mlx5_cmd *cmd = ent->cmd; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&cmd->alloc_lock, flags); + if (!refcount_dec_and_test(&ent->refcnt)) +- return; ++ goto out; + + if (ent->idx >= 0) { +- struct mlx5_cmd *cmd = ent->cmd; +- + cmd_free_index(cmd, ent->idx); + up(ent->page_queue ? &cmd->pages_sem : &cmd->sem); + } + + cmd_free_ent(ent); ++out: ++ spin_unlock_irqrestore(&cmd->alloc_lock, flags); + } + + static struct mlx5_cmd_layout *get_inst(struct mlx5_cmd *cmd, int idx) +diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c +index 3b177421651f1..d2e220a94a57c 100644 +--- a/drivers/net/ethernet/nxp/lpc_eth.c ++++ b/drivers/net/ethernet/nxp/lpc_eth.c +@@ -1470,6 +1470,7 @@ static int lpc_eth_drv_resume(struct platform_device *pdev) + { + struct net_device *ndev = platform_get_drvdata(pdev); + struct netdata_local *pldat; ++ int ret; + + if (device_may_wakeup(&pdev->dev)) + disable_irq_wake(ndev->irq); +@@ -1479,7 +1480,9 @@ static int lpc_eth_drv_resume(struct platform_device *pdev) + pldat = netdev_priv(ndev); + + /* Enable interface clock */ +- clk_enable(pldat->clk); ++ ret = clk_enable(pldat->clk); ++ if (ret) ++ return ret; + + /* Reset and initialize */ + __lpc_eth_reset(pldat); +diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c b/drivers/net/ethernet/qlogic/qed/qed_sriov.c +index fb9c3ca5d36cc..5e8f8eb916e64 100644 +--- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c ++++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c +@@ -3801,11 +3801,11 @@ bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *p_disabled_vfs) + return found; + } + +-static void qed_iov_get_link(struct qed_hwfn *p_hwfn, +- u16 vfid, +- struct qed_mcp_link_params *p_params, +- struct qed_mcp_link_state *p_link, +- struct qed_mcp_link_capabilities *p_caps) ++static int qed_iov_get_link(struct qed_hwfn *p_hwfn, ++ u16 vfid, ++ struct qed_mcp_link_params *p_params, ++ struct qed_mcp_link_state *p_link, ++ struct qed_mcp_link_capabilities *p_caps) + { + struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn, + vfid, +@@ -3813,7 +3813,7 @@ static void qed_iov_get_link(struct qed_hwfn *p_hwfn, + struct qed_bulletin_content *p_bulletin; + + if (!p_vf) +- return; ++ return -EINVAL; + + p_bulletin = p_vf->bulletin.p_virt; + +@@ -3823,6 +3823,7 @@ static void qed_iov_get_link(struct qed_hwfn *p_hwfn, + __qed_vf_get_link_state(p_hwfn, p_link, p_bulletin); + if (p_caps) + __qed_vf_get_link_caps(p_hwfn, p_caps, p_bulletin); ++ return 0; + } + + static int +@@ -4684,6 +4685,7 @@ static int qed_get_vf_config(struct qed_dev *cdev, + struct qed_public_vf_info *vf_info; + struct qed_mcp_link_state link; + u32 tx_rate; ++ int ret; + + /* Sanitize request */ + if (IS_VF(cdev)) +@@ -4697,7 +4699,9 @@ static int qed_get_vf_config(struct qed_dev *cdev, + + vf_info = qed_iov_get_public_vf_info(hwfn, vf_id, true); + +- qed_iov_get_link(hwfn, vf_id, NULL, &link, NULL); ++ ret = qed_iov_get_link(hwfn, vf_id, NULL, &link, NULL); ++ if (ret) ++ return ret; + + /* Fill information about VF */ + ivi->vf = vf_id; +diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c +index adc2c8f3d48ef..62e4511db8575 100644 +--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c ++++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c +@@ -539,6 +539,9 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn) + p_iov->bulletin.size, + &p_iov->bulletin.phys, + GFP_KERNEL); ++ if (!p_iov->bulletin.p_virt) ++ goto free_pf2vf_reply; ++ + DP_VERBOSE(p_hwfn, QED_MSG_IOV, + "VF's bulletin Board [%p virt 0x%llx phys 0x%08x bytes]\n", + p_iov->bulletin.p_virt, +@@ -578,6 +581,10 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn) + + return rc; + ++free_pf2vf_reply: ++ dma_free_coherent(&p_hwfn->cdev->pdev->dev, ++ sizeof(union pfvf_tlvs), ++ p_iov->pf2vf_reply, p_iov->pf2vf_reply_phys); + free_vf2pf_request: + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(union vfpf_tlvs), +diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c +index 26cfe3f7ed8df..453ad1247288d 100644 +--- a/drivers/net/ethernet/ti/cpts.c ++++ b/drivers/net/ethernet/ti/cpts.c +@@ -454,7 +454,9 @@ int cpts_register(struct cpts *cpts) + for (i = 0; i < CPTS_MAX_EVENTS; i++) + list_add(&cpts->pool_data[i].list, &cpts->pool); + +- clk_enable(cpts->refclk); ++ err = clk_enable(cpts->refclk); ++ if (err) ++ return err; + + cpts_write32(cpts, CPTS_EN, control); + cpts_write32(cpts, TS_PEND_EN, int_enable); +diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c +index 53dbf3e28f1ef..63a2d1bcccfbc 100644 +--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c ++++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c +@@ -1187,7 +1187,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev) + if (rc) { + dev_err(dev, + "Cannot register network device, aborting\n"); +- goto error; ++ goto put_node; + } + + dev_info(dev, +@@ -1195,6 +1195,8 @@ static int xemaclite_of_probe(struct platform_device *ofdev) + (unsigned int __force)ndev->mem_start, lp->base_addr, ndev->irq); + return 0; + ++put_node: ++ of_node_put(lp->phy_node); + error: + free_netdev(ndev); + return rc; +diff --git a/drivers/net/phy/dp83822.c b/drivers/net/phy/dp83822.c +index 8a4b1d167ce2f..ae17d2f9d5347 100644 +--- a/drivers/net/phy/dp83822.c ++++ b/drivers/net/phy/dp83822.c +@@ -238,7 +238,7 @@ static int dp83822_config_intr(struct phy_device *phydev) + if (err < 0) + return err; + +- err = phy_write(phydev, MII_DP83822_MISR1, 0); ++ err = phy_write(phydev, MII_DP83822_MISR2, 0); + if (err < 0) + return err; + +diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c +index 416305e6d0932..44e353dd2ba19 100644 +--- a/drivers/net/xen-netback/xenbus.c ++++ b/drivers/net/xen-netback/xenbus.c +@@ -435,6 +435,7 @@ static void backend_disconnect(struct backend_info *be) + unsigned int queue_index; + + xen_unregister_watchers(vif); ++ xenbus_rm(XBT_NIL, be->dev->nodename, "hotplug-status"); + #ifdef CONFIG_DEBUG_FS + xenvif_debugfs_delif(vif); + #endif /* CONFIG_DEBUG_FS */ +@@ -979,15 +980,11 @@ static void connect(struct backend_info *be) + xenvif_carrier_on(be->vif); + + unregister_hotplug_status_watch(be); +- if (xenbus_exists(XBT_NIL, dev->nodename, "hotplug-status")) { +- err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch, +- NULL, hotplug_status_changed, +- "%s/%s", dev->nodename, +- "hotplug-status"); +- if (err) +- goto err; ++ err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch, NULL, ++ hotplug_status_changed, ++ "%s/%s", dev->nodename, "hotplug-status"); ++ if (!err) + be->have_hotplug_status_watch = 1; +- } + + netif_tx_wake_all_queues(be->vif->dev); + +diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c +index 1caebefb25ff1..2ae1474faede9 100644 +--- a/drivers/nfc/port100.c ++++ b/drivers/nfc/port100.c +@@ -1609,7 +1609,9 @@ free_nfc_dev: + nfc_digital_free_device(dev->nfc_digital_dev); + + error: ++ usb_kill_urb(dev->in_urb); + usb_free_urb(dev->in_urb); ++ usb_kill_urb(dev->out_urb); + usb_free_urb(dev->out_urb); + usb_put_dev(dev->udev); + +diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c +index 8093d06086388..4dba62aed10b8 100644 +--- a/drivers/staging/gdm724x/gdm_lte.c ++++ b/drivers/staging/gdm724x/gdm_lte.c +@@ -76,14 +76,15 @@ static void tx_complete(void *arg) + + static int gdm_lte_rx(struct sk_buff *skb, struct nic *nic, int nic_type) + { +- int ret; ++ int ret, len; + ++ len = skb->len + ETH_HLEN; + ret = netif_rx_ni(skb); + if (ret == NET_RX_DROP) { + nic->stats.rx_dropped++; + } else { + nic->stats.rx_packets++; +- nic->stats.rx_bytes += skb->len + ETH_HLEN; ++ nic->stats.rx_bytes += len; + } + + return 0; +diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c +index 91627e7443260..cab97cda54304 100644 +--- a/drivers/virtio/virtio.c ++++ b/drivers/virtio/virtio.c +@@ -167,14 +167,12 @@ void virtio_add_status(struct virtio_device *dev, unsigned int status) + } + EXPORT_SYMBOL_GPL(virtio_add_status); + +-int virtio_finalize_features(struct virtio_device *dev) ++/* Do some validation, then set FEATURES_OK */ ++static int virtio_features_ok(struct virtio_device *dev) + { +- int ret = dev->config->finalize_features(dev); + unsigned status; + + might_sleep(); +- if (ret) +- return ret; + + if (!virtio_has_feature(dev, VIRTIO_F_VERSION_1)) + return 0; +@@ -188,7 +186,6 @@ int virtio_finalize_features(struct virtio_device *dev) + } + return 0; + } +-EXPORT_SYMBOL_GPL(virtio_finalize_features); + + static int virtio_dev_probe(struct device *_d) + { +@@ -225,17 +222,6 @@ static int virtio_dev_probe(struct device *_d) + driver_features_legacy = driver_features; + } + +- /* +- * Some devices detect legacy solely via F_VERSION_1. Write +- * F_VERSION_1 to force LE config space accesses before FEATURES_OK for +- * these when needed. +- */ +- if (drv->validate && !virtio_legacy_is_little_endian() +- && device_features & BIT_ULL(VIRTIO_F_VERSION_1)) { +- dev->features = BIT_ULL(VIRTIO_F_VERSION_1); +- dev->config->finalize_features(dev); +- } +- + if (device_features & (1ULL << VIRTIO_F_VERSION_1)) + dev->features = driver_features & device_features; + else +@@ -246,13 +232,26 @@ static int virtio_dev_probe(struct device *_d) + if (device_features & (1ULL << i)) + __virtio_set_bit(dev, i); + ++ err = dev->config->finalize_features(dev); ++ if (err) ++ goto err; ++ + if (drv->validate) { ++ u64 features = dev->features; ++ + err = drv->validate(dev); + if (err) + goto err; ++ ++ /* Did validation change any features? Then write them again. */ ++ if (features != dev->features) { ++ err = dev->config->finalize_features(dev); ++ if (err) ++ goto err; ++ } + } + +- err = virtio_finalize_features(dev); ++ err = virtio_features_ok(dev); + if (err) + goto err; + +@@ -417,7 +416,11 @@ int virtio_device_restore(struct virtio_device *dev) + /* We have a driver! */ + virtio_add_status(dev, VIRTIO_CONFIG_S_DRIVER); + +- ret = virtio_finalize_features(dev); ++ ret = dev->config->finalize_features(dev); ++ if (ret) ++ goto err; ++ ++ ret = virtio_features_ok(dev); + if (ret) + goto err; + +diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c +index ad1d4c8faf449..b7f20196439a2 100644 +--- a/fs/ext4/resize.c ++++ b/fs/ext4/resize.c +@@ -74,6 +74,11 @@ int ext4_resize_begin(struct super_block *sb) + return -EPERM; + } + ++ if (ext4_has_feature_sparse_super2(sb)) { ++ ext4_msg(sb, KERN_ERR, "Online resizing not supported with sparse_super2"); ++ return -EOPNOTSUPP; ++ } ++ + if (test_and_set_bit_lock(EXT4_FLAGS_RESIZING, + &EXT4_SB(sb)->s_ext4_flags)) + ret = -EBUSY; +diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c +index 64d6c8c9f1ff2..ac6a8da340139 100644 +--- a/fs/fuse/dev.c ++++ b/fs/fuse/dev.c +@@ -933,7 +933,17 @@ static int fuse_copy_page(struct fuse_copy_state *cs, struct page **pagep, + + while (count) { + if (cs->write && cs->pipebufs && page) { +- return fuse_ref_page(cs, page, offset, count); ++ /* ++ * Can't control lifetime of pipe buffers, so always ++ * copy user pages. ++ */ ++ if (cs->req->args->user_pages) { ++ err = fuse_copy_fill(cs); ++ if (err) ++ return err; ++ } else { ++ return fuse_ref_page(cs, page, offset, count); ++ } + } else if (!cs->len) { + if (cs->move_pages && page && + offset == 0 && count == PAGE_SIZE) { +diff --git a/fs/fuse/file.c b/fs/fuse/file.c +index 5cf13196ce69e..efb2a48712919 100644 +--- a/fs/fuse/file.c ++++ b/fs/fuse/file.c +@@ -1433,6 +1433,7 @@ static int fuse_get_user_pages(struct fuse_args_pages *ap, struct iov_iter *ii, + (PAGE_SIZE - ret) & (PAGE_SIZE - 1); + } + ++ ap->args.user_pages = true; + if (write) + ap->args.in_pages = 1; + else +diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h +index d878926485451..83c2855bc7406 100644 +--- a/fs/fuse/fuse_i.h ++++ b/fs/fuse/fuse_i.h +@@ -248,6 +248,7 @@ struct fuse_args { + bool nocreds:1; + bool in_pages:1; + bool out_pages:1; ++ bool user_pages:1; + bool out_argvar:1; + bool page_zeroing:1; + bool page_replace:1; +diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h +index 641a01bc5f6f7..031022e326356 100644 +--- a/include/linux/mlx5/mlx5_ifc.h ++++ b/include/linux/mlx5/mlx5_ifc.h +@@ -8975,8 +8975,8 @@ struct mlx5_ifc_bufferx_reg_bits { + u8 reserved_at_0[0x6]; + u8 lossy[0x1]; + u8 epsb[0x1]; +- u8 reserved_at_8[0xc]; +- u8 size[0xc]; ++ u8 reserved_at_8[0x8]; ++ u8 size[0x10]; + + u8 xoff_threshold[0x10]; + u8 xon_threshold[0x10]; +diff --git a/include/linux/virtio.h b/include/linux/virtio.h +index 7c075463c7f2b..b80376654a604 100644 +--- a/include/linux/virtio.h ++++ b/include/linux/virtio.h +@@ -135,7 +135,6 @@ void virtio_break_device(struct virtio_device *dev); + void virtio_config_changed(struct virtio_device *dev); + void virtio_config_disable(struct virtio_device *dev); + void virtio_config_enable(struct virtio_device *dev); +-int virtio_finalize_features(struct virtio_device *dev); + #ifdef CONFIG_PM_SLEEP + int virtio_device_freeze(struct virtio_device *dev); + int virtio_device_restore(struct virtio_device *dev); +diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h +index bb4cc49107503..ad4d4697a1673 100644 +--- a/include/linux/virtio_config.h ++++ b/include/linux/virtio_config.h +@@ -56,8 +56,9 @@ struct irq_affinity; + * Returns the first 64 feature bits (all we currently need). + * @finalize_features: confirm what device features we'll be using. + * vdev: the virtio_device +- * This gives the final feature bits for the device: it can change ++ * This sends the driver feature bits to the device: it can change + * the dev->feature bits if it wants. ++ * Note: despite the name this can be called any number of times. + * Returns 0 on success or error status + * @bus_name: return the bus name associated with the device (optional) + * vdev: the virtio_device +diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c +index 1a89b2bf626a5..56619766e9103 100644 +--- a/kernel/trace/trace.c ++++ b/kernel/trace/trace.c +@@ -1305,10 +1305,12 @@ static int __init set_buf_size(char *str) + if (!str) + return 0; + buf_size = memparse(str, &str); +- /* nr_entries can not be zero */ +- if (buf_size == 0) +- return 0; +- trace_buf_size = buf_size; ++ /* ++ * nr_entries can not be zero and the startup ++ * tests require some buffer space. Therefore ++ * ensure we have at least 4096 bytes of buffer. ++ */ ++ trace_buf_size = max(4096UL, buf_size); + return 1; + } + __setup("trace_buf_size=", set_buf_size); +diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c +index 184af6da0defc..093b73c454d28 100644 +--- a/net/ax25/af_ax25.c ++++ b/net/ax25/af_ax25.c +@@ -87,6 +87,13 @@ again: + ax25_for_each(s, &ax25_list) { + if (s->ax25_dev == ax25_dev) { + sk = s->sk; ++ if (!sk) { ++ spin_unlock_bh(&ax25_list_lock); ++ s->ax25_dev = NULL; ++ ax25_disconnect(s, ENETUNREACH); ++ spin_lock_bh(&ax25_list_lock); ++ goto again; ++ } + sock_hold(sk); + spin_unlock_bh(&ax25_list_lock); + lock_sock(sk); +diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c +index bcad7028bbf45..ad45f13a0370b 100644 +--- a/net/core/net-sysfs.c ++++ b/net/core/net-sysfs.c +@@ -212,7 +212,7 @@ static ssize_t speed_show(struct device *dev, + if (!rtnl_trylock()) + return restart_syscall(); + +- if (netif_running(netdev)) { ++ if (netif_running(netdev) && netif_device_present(netdev)) { + struct ethtool_link_ksettings cmd; + + if (!__ethtool_get_link_ksettings(netdev, &cmd)) +diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c +index d1f29a3eb70be..60d070b254846 100644 +--- a/net/ipv6/addrconf.c ++++ b/net/ipv6/addrconf.c +@@ -4924,6 +4924,7 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, + nla_put_s32(skb, IFA_TARGET_NETNSID, args->netnsid)) + goto error; + ++ spin_lock_bh(&ifa->lock); + if (!((ifa->flags&IFA_F_PERMANENT) && + (ifa->prefered_lft == INFINITY_LIFE_TIME))) { + preferred = ifa->prefered_lft; +@@ -4945,6 +4946,7 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, + preferred = INFINITY_LIFE_TIME; + valid = INFINITY_LIFE_TIME; + } ++ spin_unlock_bh(&ifa->lock); + + if (!ipv6_addr_any(&ifa->peer_addr)) { + if (nla_put_in6_addr(skb, IFA_LOCAL, &ifa->addr) < 0 || +diff --git a/net/sctp/diag.c b/net/sctp/diag.c +index 7921e77fa55a3..5a918e74bb82b 100644 +--- a/net/sctp/diag.c ++++ b/net/sctp/diag.c +@@ -61,10 +61,6 @@ static void inet_diag_msg_sctpasoc_fill(struct inet_diag_msg *r, + r->idiag_timer = SCTP_EVENT_TIMEOUT_T3_RTX; + r->idiag_retrans = asoc->rtx_data_chunks; + r->idiag_expires = jiffies_to_msecs(t3_rtx->expires - jiffies); +- } else { +- r->idiag_timer = 0; +- r->idiag_retrans = 0; +- r->idiag_expires = 0; + } + } + +@@ -144,13 +140,14 @@ static int inet_sctp_diag_fill(struct sock *sk, struct sctp_association *asoc, + r = nlmsg_data(nlh); + BUG_ON(!sk_fullsock(sk)); + ++ r->idiag_timer = 0; ++ r->idiag_retrans = 0; ++ r->idiag_expires = 0; + if (asoc) { + inet_diag_msg_sctpasoc_fill(r, sk, asoc); + } else { + inet_diag_msg_common_fill(r, sk); + r->idiag_state = sk->sk_state; +- r->idiag_timer = 0; +- r->idiag_retrans = 0; + } + + if (inet_diag_msg_attrs_fill(sk, skb, r, ext, user_ns, net_admin)) +diff --git a/tools/testing/selftests/bpf/prog_tests/timer_crash.c b/tools/testing/selftests/bpf/prog_tests/timer_crash.c +new file mode 100644 +index 0000000000000..f74b82305da8c +--- /dev/null ++++ b/tools/testing/selftests/bpf/prog_tests/timer_crash.c +@@ -0,0 +1,32 @@ ++// SPDX-License-Identifier: GPL-2.0 ++#include <test_progs.h> ++#include "timer_crash.skel.h" ++ ++enum { ++ MODE_ARRAY, ++ MODE_HASH, ++}; ++ ++static void test_timer_crash_mode(int mode) ++{ ++ struct timer_crash *skel; ++ ++ skel = timer_crash__open_and_load(); ++ if (!ASSERT_OK_PTR(skel, "timer_crash__open_and_load")) ++ return; ++ skel->bss->pid = getpid(); ++ skel->bss->crash_map = mode; ++ if (!ASSERT_OK(timer_crash__attach(skel), "timer_crash__attach")) ++ goto end; ++ usleep(1); ++end: ++ timer_crash__destroy(skel); ++} ++ ++void test_timer_crash(void) ++{ ++ if (test__start_subtest("array")) ++ test_timer_crash_mode(MODE_ARRAY); ++ if (test__start_subtest("hash")) ++ test_timer_crash_mode(MODE_HASH); ++} +diff --git a/tools/testing/selftests/bpf/progs/timer_crash.c b/tools/testing/selftests/bpf/progs/timer_crash.c +new file mode 100644 +index 0000000000000..f8f7944e70dae +--- /dev/null ++++ b/tools/testing/selftests/bpf/progs/timer_crash.c +@@ -0,0 +1,54 @@ ++// SPDX-License-Identifier: GPL-2.0 ++ ++#include <vmlinux.h> ++#include <bpf/bpf_tracing.h> ++#include <bpf/bpf_helpers.h> ++ ++struct map_elem { ++ struct bpf_timer timer; ++ struct bpf_spin_lock lock; ++}; ++ ++struct { ++ __uint(type, BPF_MAP_TYPE_ARRAY); ++ __uint(max_entries, 1); ++ __type(key, int); ++ __type(value, struct map_elem); ++} amap SEC(".maps"); ++ ++struct { ++ __uint(type, BPF_MAP_TYPE_HASH); ++ __uint(max_entries, 1); ++ __type(key, int); ++ __type(value, struct map_elem); ++} hmap SEC(".maps"); ++ ++int pid = 0; ++int crash_map = 0; /* 0 for amap, 1 for hmap */ ++ ++SEC("fentry/do_nanosleep") ++int sys_enter(void *ctx) ++{ ++ struct map_elem *e, value = {}; ++ void *map = crash_map ? (void *)&hmap : (void *)&amap; ++ ++ if (bpf_get_current_task_btf()->tgid != pid) ++ return 0; ++ ++ *(void **)&value = (void *)0xdeadcaf3; ++ ++ bpf_map_update_elem(map, &(int){0}, &value, 0); ++ /* For array map, doing bpf_map_update_elem will do a ++ * check_and_free_timer_in_array, which will trigger the crash if timer ++ * pointer was overwritten, for hmap we need to use bpf_timer_cancel. ++ */ ++ if (crash_map == 1) { ++ e = bpf_map_lookup_elem(map, &(int){0}); ++ if (!e) ++ return 0; ++ bpf_timer_cancel(&e->timer); ++ } ++ return 0; ++} ++ ++char _license[] SEC("license") = "GPL"; +diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c +index c67d32eeb668e..290cec2a6a338 100644 +--- a/tools/testing/selftests/memfd/memfd_test.c ++++ b/tools/testing/selftests/memfd/memfd_test.c +@@ -421,6 +421,7 @@ static void mfd_fail_write(int fd) + printf("mmap()+mprotect() didn't fail as expected\n"); + abort(); + } ++ munmap(p, mfd_def_size); + } + + /* verify PUNCH_HOLE fails */ +diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh +index 3429767cadcdd..88be9083b923b 100755 +--- a/tools/testing/selftests/net/pmtu.sh ++++ b/tools/testing/selftests/net/pmtu.sh +@@ -579,7 +579,6 @@ setup_routing() { + setup() { + [ "$(id -u)" -ne 0 ] && echo " need to run as root" && return $ksft_skip + +- cleanup + for arg do + eval setup_${arg} || { echo " ${arg} not supported"; return 1; } + done +@@ -590,7 +589,7 @@ trace() { + + for arg do + [ "${ns_cmd}" = "" ] && ns_cmd="${arg}" && continue +- ${ns_cmd} tcpdump -s 0 -i "${arg}" -w "${name}_${arg}.pcap" 2> /dev/null & ++ ${ns_cmd} tcpdump --immediate-mode -s 0 -i "${arg}" -w "${name}_${arg}.pcap" 2> /dev/null & + tcpdump_pids="${tcpdump_pids} $!" + ns_cmd= + done +@@ -1182,6 +1181,10 @@ run_test() { + + unset IFS + ++ # Since cleanup() relies on variables modified by this subshell, it ++ # has to run in this context. ++ trap cleanup EXIT ++ + if [ "$VERBOSE" = "1" ]; then + printf "\n##########################################################################\n\n" + fi +diff --git a/tools/testing/selftests/vm/map_fixed_noreplace.c b/tools/testing/selftests/vm/map_fixed_noreplace.c +index d91bde5112686..eed44322d1a63 100644 +--- a/tools/testing/selftests/vm/map_fixed_noreplace.c ++++ b/tools/testing/selftests/vm/map_fixed_noreplace.c +@@ -17,9 +17,6 @@ + #define MAP_FIXED_NOREPLACE 0x100000 + #endif + +-#define BASE_ADDRESS (256ul * 1024 * 1024) +- +- + static void dump_maps(void) + { + char cmd[32]; +@@ -28,18 +25,46 @@ static void dump_maps(void) + system(cmd); + } + ++static unsigned long find_base_addr(unsigned long size) ++{ ++ void *addr; ++ unsigned long flags; ++ ++ flags = MAP_PRIVATE | MAP_ANONYMOUS; ++ addr = mmap(NULL, size, PROT_NONE, flags, -1, 0); ++ if (addr == MAP_FAILED) { ++ printf("Error: couldn't map the space we need for the test\n"); ++ return 0; ++ } ++ ++ if (munmap(addr, size) != 0) { ++ printf("Error: couldn't map the space we need for the test\n"); ++ return 0; ++ } ++ return (unsigned long)addr; ++} ++ + int main(void) + { ++ unsigned long base_addr; + unsigned long flags, addr, size, page_size; + char *p; + + page_size = sysconf(_SC_PAGE_SIZE); + ++ //let's find a base addr that is free before we start the tests ++ size = 5 * page_size; ++ base_addr = find_base_addr(size); ++ if (!base_addr) { ++ printf("Error: couldn't map the space we need for the test\n"); ++ return 1; ++ } ++ + flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE; + + // Check we can map all the areas we need below + errno = 0; +- addr = BASE_ADDRESS; ++ addr = base_addr; + size = 5 * page_size; + p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); + +@@ -60,7 +85,7 @@ int main(void) + printf("unmap() successful\n"); + + errno = 0; +- addr = BASE_ADDRESS + page_size; ++ addr = base_addr + page_size; + size = 3 * page_size; + p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); + printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); +@@ -80,7 +105,7 @@ int main(void) + * +4 | free | new + */ + errno = 0; +- addr = BASE_ADDRESS; ++ addr = base_addr; + size = 5 * page_size; + p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); + printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); +@@ -101,7 +126,7 @@ int main(void) + * +4 | free | + */ + errno = 0; +- addr = BASE_ADDRESS + (2 * page_size); ++ addr = base_addr + (2 * page_size); + size = page_size; + p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); + printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); +@@ -121,7 +146,7 @@ int main(void) + * +4 | free | new + */ + errno = 0; +- addr = BASE_ADDRESS + (3 * page_size); ++ addr = base_addr + (3 * page_size); + size = 2 * page_size; + p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); + printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); +@@ -141,7 +166,7 @@ int main(void) + * +4 | free | + */ + errno = 0; +- addr = BASE_ADDRESS; ++ addr = base_addr; + size = 2 * page_size; + p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); + printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); +@@ -161,7 +186,7 @@ int main(void) + * +4 | free | + */ + errno = 0; +- addr = BASE_ADDRESS; ++ addr = base_addr; + size = page_size; + p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); + printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); +@@ -181,7 +206,7 @@ int main(void) + * +4 | free | new + */ + errno = 0; +- addr = BASE_ADDRESS + (4 * page_size); ++ addr = base_addr + (4 * page_size); + size = page_size; + p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); + printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); +@@ -192,7 +217,7 @@ int main(void) + return 1; + } + +- addr = BASE_ADDRESS; ++ addr = base_addr; + size = 5 * page_size; + if (munmap((void *)addr, size) != 0) { + dump_maps(); |