August 2021 - Linux-stable-mirror

stable-rc/linux-4.4.y build: 124 builds: 0 failed, 124 passed, 4 warnings (v4.4.279-12-gc824584f177a)

by kernelci.org bot

stable-rc/linux-4.4.y build: 124 builds: 0 failed, 124 passed, 4 warnings (v4.4.279-12-gc824584f177a) Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.4.y/kernel/v4.4.279-12-… Tree: stable-rc Branch: linux-4.4.y Git Describe: v4.4.279-12-gc824584f177a Git Commit: c824584f177a4397471371918e70d28353778704 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 6 unique architectures Warnings Detected: arc: arm: clps711x_defconfig (gcc-8): 1 warning lpc32xx_defconfig (gcc-8): 1 warning mxs_defconfig (gcc-8): 1 warning i386: mips: ip22_defconfig (gcc-8): 1 warning x86_64: Warnings summary: 1 drivers/net/ethernet/seeq/sgiseeq.c:804:26: warning: passing argument 5 of ‘dma_free_attrs’ makes pointer from integer without a cast [-Wint-conversion] 1 arch/arm/mach-mxs/mach-mxs.c:285:26: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] 1 arch/arm/mach-lpc32xx/phy3250.c:215:36: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] 1 arch/arm/mach-clps711x/board-autcpu12.c:163:26: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- acs5k_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_tiny_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath79_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm2835_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm63xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_be_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cavium_octeon_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cerfcube_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ci20_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- clps711x_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/arm/mach-clps711x/board-autcpu12.c:163:26: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] -------------------------------------------------------------------------------- cm_x2xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cobalt_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa300_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- collie_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- db1xxx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- e55_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ebsa110_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- efm32_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- em_x270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- eseries_pxa_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ezx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- footbridge_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- fuloong2e_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gpr_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h3600_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hackkit_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- integrator_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop13xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop32x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop33x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip22_defconfig (mips, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/net/ethernet/seeq/sgiseeq.c:804:26: warning: passing argument 5 of ‘dma_free_attrs’ makes pointer from integer without a cast [-Wint-conversion] -------------------------------------------------------------------------------- ip32_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jazz_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jmr3927_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ks8695_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lart_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lemote2f_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson3_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc32xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/arm/mach-lpc32xx/phy3250.c:215:36: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] -------------------------------------------------------------------------------- lubbock_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mainstone_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_guest_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_qemu_32r6_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- markeins_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mmp2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- msp71xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mtx1_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mxs_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/arm/mach-mxs/mach-mxs.c:285:26: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] -------------------------------------------------------------------------------- neponset_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nhk8815_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlr_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc910_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc950_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap1_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- orion5x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pnx8335_stb225_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- prima2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa3xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa910_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qcom_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- raumfeld_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rb532_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rm200_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rpc_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rt305x_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c2410_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c6400_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sama5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sb1250_swarm_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sead3_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shmobile_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- socfpga_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear3xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear6xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spitz_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- stm32_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0219_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0226_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0287_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- trizeps4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u300_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u8500_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- versatile_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vf610m4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- viper_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+x86-chromebook (x86_64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xcep_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xilfpga_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xway_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches --- For more info write to <info(a)kernelci.org>

3 years, 6 months

1
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[PATCH 5.13 00/35] 5.13.9-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.13.9 release. There are 35 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Sun, 08 Aug 2021 08:11:03 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.13.9-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.13.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.13.9-rc1 Stylon Wang <stylon.wang(a)amd.com> drm/amd/display: Fix ASSR regression on embedded panels Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout" Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Revert "Bluetooth: Shutdown controller after workqueues are flushed or cancelled" Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Revert "spi: mediatek: fix fifo rx mode" Jens Axboe <axboe(a)kernel.dk> io_uring: explicitly catch any illegal async queue attempt Jens Axboe <axboe(a)kernel.dk> io_uring: never attempt iopoll reissue from release path Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com> drm/amd/display: Fix max vstartup calculation for modes with borders Victor Lu <victorchengchi.lu(a)amd.com> drm/amd/display: Fix comparison error in dcn21 DML Keith Busch <kbusch(a)kernel.org> nvme: fix nvme_setup_command metadata trace event Borislav Petkov <bp(a)suse.de> efi/mokvar: Reserve the table only if it is in boot services data Peter Ujfalusi <peter.ujfalusi(a)gmail.com> ASoC: ti: j721e-evm: Check for not initialized parent_clk_id Peter Ujfalusi <peter.ujfalusi(a)gmail.com> ASoC: ti: j721e-evm: Fix unbalanced domain activity tracking during startup Pravin B Shelar <pshelar(a)ovn.org> net: Fix zero-copy head len calculation. Oder Chiou <oder_chiou(a)realtek.com> ASoC: rt5682: Fix the issue of garbled recording after powerd_dbus_suspend Jia He <justin.he(a)arm.com> qed: fix possible unpaired spin_{un}lock_bh in _qed_mcp_cmd_and_union() Takashi Iwai <tiwai(a)suse.de> r8152: Fix a deadlock by doubly PM resume Takashi Iwai <tiwai(a)suse.de> r8152: Fix potential PM refcount imbalance Axel Lin <axel.lin(a)ingics.com> regulator: mtk-dvfsrc: Fix wrong dev pointer for devm_regulator_register Kyle Russell <bkylerussell(a)gmail.com> ASoC: tlv320aic31xx: fix reversed bclk/wclk master bits Alain Volmat <alain.volmat(a)foss.st.com> spi: stm32h7: fix full duplex irq handler handling Axel Lin <axel.lin(a)ingics.com> regulator: rt5033: Fix n_voltages settings for BUCK and LDO ChiYuan Huang <cy_huang(a)richtek.com> regulator: rtmv20: Fix wrong mask for strobe-polarity-high Rander Wang <rander.wang(a)intel.com> ASoC: Intel: boards: fix xrun issue on platform with max98373 Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> ASoC: Intel: boards: create sof-maxim-common module Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> ASoC: Intel: boards: handle hda-dsp-common as a module Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: sja1105: fix address learning getting disabled on the CPU port Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: sja1105: parameterize the number of ports Ronnie Sahlberg <lsahlber(a)redhat.com> cifs: add missing parsing of backupuid Ronnie Sahlberg <lsahlber(a)redhat.com> cifs: use helpers when parsing uid/gid mount options and validate them John Fastabend <john.fastabend(a)gmail.com> bpf, sockmap: On cleanup we additionally need to remove cached skb Cong Wang <cong.wang(a)bytedance.com> skmsg: Pass source psock to sk_psock_skb_redirect() Cong Wang <cong.wang(a)bytedance.com> skmsg: Increase sk->sk_drops when dropping packets Linus Walleij <linus.walleij(a)linaro.org> power: supply: ab8500: Call battery population once Jason Ekstrand <jason(a)jlekstrand.net> Revert "drm/i915: Propagate errors on awaiting already signaled fences" Jason Ekstrand <jason(a)jlekstrand.net> drm/i915: Revert "drm/i915/gem: Asynchronous cmdparser" ------------- Diffstat: Makefile | 4 +- drivers/firmware/efi/mokvar-table.c | 5 +- drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 3 - .../gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 6 +- .../amd/display/dc/dml/dcn21/display_mode_vba_21.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 227 ++------------------- .../drm/i915/gem/selftests/i915_gem_execbuffer.c | 4 + drivers/gpu/drm/i915/i915_cmd_parser.c | 118 +++++++---- drivers/gpu/drm/i915/i915_drv.h | 7 +- drivers/gpu/drm/i915/i915_request.c | 8 +- drivers/net/dsa/sja1105/sja1105_clocking.c | 3 +- drivers/net/dsa/sja1105/sja1105_flower.c | 9 +- drivers/net/dsa/sja1105/sja1105_main.c | 75 ++++--- drivers/net/dsa/sja1105/sja1105_spi.c | 4 +- drivers/net/dsa/sja1105/sja1105_tas.c | 14 +- drivers/net/ethernet/qlogic/qed/qed_mcp.c | 23 ++- drivers/net/usb/r8152.c | 30 ++- drivers/nvme/host/trace.h | 6 +- drivers/power/supply/ab8500_btemp.c | 7 - drivers/power/supply/ab8500_fg.c | 6 - drivers/power/supply/abx500_chargalg.c | 7 - drivers/regulator/mtk-dvfsrc-regulator.c | 3 +- drivers/regulator/rtmv20-regulator.c | 2 +- drivers/spi/spi-mt65xx.c | 16 +- drivers/spi/spi-stm32.c | 15 +- drivers/watchdog/iTCO_wdt.c | 12 +- fs/cifs/fs_context.c | 31 ++- fs/cifs/fs_context.h | 1 + fs/io-wq.c | 7 +- fs/io_uring.c | 25 ++- include/linux/mfd/rt5033-private.h | 4 +- net/bluetooth/hci_core.c | 16 +- net/core/skbuff.c | 5 +- net/core/skmsg.c | 68 ++++-- sound/soc/codecs/rt5682.c | 8 +- sound/soc/codecs/tlv320aic31xx.h | 4 +- sound/soc/intel/boards/Kconfig | 18 ++ sound/soc/intel/boards/Makefile | 28 ++- sound/soc/intel/boards/bxt_da7219_max98357a.c | 1 + sound/soc/intel/boards/bxt_rt298.c | 1 + sound/soc/intel/boards/cml_rt1011_rt5682.c | 1 + sound/soc/intel/boards/ehl_rt5660.c | 1 + sound/soc/intel/boards/glk_rt5682_max98357a.c | 1 + sound/soc/intel/boards/hda_dsp_common.c | 5 + sound/soc/intel/boards/skl_hda_dsp_generic.c | 1 + sound/soc/intel/boards/sof_da7219_max98373.c | 1 + sound/soc/intel/boards/sof_maxim_common.c | 24 ++- sound/soc/intel/boards/sof_maxim_common.h | 6 +- sound/soc/intel/boards/sof_pcm512x.c | 1 + sound/soc/intel/boards/sof_rt5682.c | 6 +- sound/soc/intel/boards/sof_sdw.c | 2 + sound/soc/intel/boards/sof_sdw_max98373.c | 81 +++++--- sound/soc/ti/j721e-evm.c | 18 +- 53 files changed, 481 insertions(+), 500 deletions(-)

3 years, 6 months

8
45
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[PATCH AUTOSEL 5.13 001/189] drm/etnaviv: fix NULL check before some freeing functions is not needed

by Sasha Levin

From: Tian Tao <tiantao6(a)hisilicon.com> [ Upstream commit 7d614ab2f20503ed8766363d41f8607337571adf ] fixed the below warning: drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c:84:2-8: WARNING: NULL check before some freeing functions is not needed. Signed-off-by: Tian Tao <tiantao6(a)hisilicon.com> Acked-by: Christian König <christian.koenig(a)amd.com> Signed-off-by: Lucas Stach <l.stach(a)pengutronix.de> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c index b390dd4d60b7..d741b1d735f7 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c @@ -80,8 +80,7 @@ static void etnaviv_gem_prime_release(struct etnaviv_gem_object *etnaviv_obj) /* Don't drop the pages for imported dmabuf, as they are not * ours, just free the array we allocated: */ - if (etnaviv_obj->pages) - kvfree(etnaviv_obj->pages); + kvfree(etnaviv_obj->pages); drm_prime_gem_destroy(&etnaviv_obj->base, etnaviv_obj->sgt); } -- 2.30.2

3 years, 6 months

8
200
0 0

[PATCH 4.14] qmi_wwan: add network device usage statistics for qmimux devices

by Reinhard Speyerer

Commit 44f82312fe91 ("qmi_wwan: add network device usage statistics for qmimux devices") of the "qmi_wwan: fix QMAP handling" series https://lore.kernel.org/netdev/cover.1560287477.git.rspmn@arcor.de was not part of the AUTOSEL 4.14 patches. This will introduce a regression for users of this longterm kernel when multiplexing gets enabled in the forthcoming ModemManager 1.18: https://lists.freedesktop.org/archives/modemmanager-devel/2021-August/00878… Avoid this by adding the missing patch from the series. Signed-off-by: Reinhard Speyerer <rspmn(a)arcor.de> --- drivers/net/usb/qmi_wwan.c | 76 +++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 71 insertions(+), 5 deletions(-) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index cd3865f70578..928219ab0912 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -22,6 +22,7 @@ #include <linux/usb/cdc.h> #include <linux/usb/usbnet.h> #include <linux/usb/cdc-wdm.h> +#include <linux/u64_stats_sync.h> /* This driver supports wwan (3G/LTE/?) devices using a vendor * specific management protocol called Qualcomm MSM Interface (QMI) - @@ -74,6 +75,7 @@ struct qmimux_hdr { struct qmimux_priv { struct net_device *real_dev; u8 mux_id; + struct pcpu_sw_netstats __percpu *stats64; }; static int qmimux_open(struct net_device *dev) @@ -100,19 +102,65 @@ static netdev_tx_t qmimux_start_xmit(struct sk_buff *skb, struct net_device *dev struct qmimux_priv *priv = netdev_priv(dev); unsigned int len = skb->len; struct qmimux_hdr *hdr; + netdev_tx_t ret; hdr = skb_push(skb, sizeof(struct qmimux_hdr)); hdr->pad = 0; hdr->mux_id = priv->mux_id; hdr->pkt_len = cpu_to_be16(len); skb->dev = priv->real_dev; - return dev_queue_xmit(skb); + ret = dev_queue_xmit(skb); + + if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { + struct pcpu_sw_netstats *stats64 = this_cpu_ptr(priv->stats64); + + u64_stats_update_begin(&stats64->syncp); + stats64->tx_packets++; + stats64->tx_bytes += len; + u64_stats_update_end(&stats64->syncp); + } else { + dev->stats.tx_dropped++; + } + + return ret; +} + +static void qmimux_get_stats64(struct net_device *net, + struct rtnl_link_stats64 *stats) +{ + struct qmimux_priv *priv = netdev_priv(net); + unsigned int start; + int cpu; + + netdev_stats_to_stats64(stats, &net->stats); + + for_each_possible_cpu(cpu) { + struct pcpu_sw_netstats *stats64; + u64 rx_packets, rx_bytes; + u64 tx_packets, tx_bytes; + + stats64 = per_cpu_ptr(priv->stats64, cpu); + + do { + start = u64_stats_fetch_begin_irq(&stats64->syncp); + rx_packets = stats64->rx_packets; + rx_bytes = stats64->rx_bytes; + tx_packets = stats64->tx_packets; + tx_bytes = stats64->tx_bytes; + } while (u64_stats_fetch_retry_irq(&stats64->syncp, start)); + + stats->rx_packets += rx_packets; + stats->rx_bytes += rx_bytes; + stats->tx_packets += tx_packets; + stats->tx_bytes += tx_bytes; + } } static const struct net_device_ops qmimux_netdev_ops = { - .ndo_open = qmimux_open, - .ndo_stop = qmimux_stop, - .ndo_start_xmit = qmimux_start_xmit, + .ndo_open = qmimux_open, + .ndo_stop = qmimux_stop, + .ndo_start_xmit = qmimux_start_xmit, + .ndo_get_stats64 = qmimux_get_stats64, }; static void qmimux_setup(struct net_device *dev) @@ -197,8 +245,19 @@ static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) } skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, pkt_len); - if (netif_rx(skbn) != NET_RX_SUCCESS) + if (netif_rx(skbn) != NET_RX_SUCCESS) { + net->stats.rx_errors++; return 0; + } else { + struct pcpu_sw_netstats *stats64; + struct qmimux_priv *priv = netdev_priv(net); + + stats64 = this_cpu_ptr(priv->stats64); + u64_stats_update_begin(&stats64->syncp); + stats64->rx_packets++; + stats64->rx_bytes += pkt_len; + u64_stats_update_end(&stats64->syncp); + } skip: offset += len + qmimux_hdr_sz; @@ -222,6 +281,12 @@ static int qmimux_register_device(struct net_device *real_dev, u8 mux_id) priv->mux_id = mux_id; priv->real_dev = real_dev; + priv->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + if (!priv->stats64) { + err = -ENOBUFS; + goto out_free_newdev; + } + err = register_netdevice(new_dev); if (err < 0) goto out_free_newdev; @@ -252,6 +317,7 @@ static void qmimux_unregister_device(struct net_device *dev, struct qmimux_priv *priv = netdev_priv(dev); struct net_device *real_dev = priv->real_dev; + free_percpu(priv->stats64); netdev_upper_dev_unlink(real_dev, dev); unregister_netdevice_queue(dev, head);

3 years, 6 months

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[PATCH 4.19] qmi_wwan: add network device usage statistics for qmimux devices

by Reinhard Speyerer

Commit 44f82312fe91 ("qmi_wwan: add network device usage statistics for qmimux devices") of the "qmi_wwan: fix QMAP handling" series https://lore.kernel.org/netdev/cover.1560287477.git.rspmn@arcor.de was not part of the AUTOSEL 4.19 patches. This will introduce a regression for users of this longterm kernel when multiplexing gets enabled in the forthcoming ModemManager 1.18: https://lists.freedesktop.org/archives/modemmanager-devel/2021-August/00878… Avoid this by adding the missing patch from the series. Signed-off-by: Reinhard Speyerer <rspmn(a)arcor.de> --- drivers/net/usb/qmi_wwan.c | 76 +++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 71 insertions(+), 5 deletions(-) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index d08e1de26030..54b37a30df18 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -22,6 +22,7 @@ #include <linux/usb/cdc.h> #include <linux/usb/usbnet.h> #include <linux/usb/cdc-wdm.h> +#include <linux/u64_stats_sync.h> /* This driver supports wwan (3G/LTE/?) devices using a vendor * specific management protocol called Qualcomm MSM Interface (QMI) - @@ -74,6 +75,7 @@ struct qmimux_hdr { struct qmimux_priv { struct net_device *real_dev; u8 mux_id; + struct pcpu_sw_netstats __percpu *stats64; }; static int qmimux_open(struct net_device *dev) @@ -100,19 +102,65 @@ static netdev_tx_t qmimux_start_xmit(struct sk_buff *skb, struct net_device *dev struct qmimux_priv *priv = netdev_priv(dev); unsigned int len = skb->len; struct qmimux_hdr *hdr; + netdev_tx_t ret; hdr = skb_push(skb, sizeof(struct qmimux_hdr)); hdr->pad = 0; hdr->mux_id = priv->mux_id; hdr->pkt_len = cpu_to_be16(len); skb->dev = priv->real_dev; - return dev_queue_xmit(skb); + ret = dev_queue_xmit(skb); + + if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { + struct pcpu_sw_netstats *stats64 = this_cpu_ptr(priv->stats64); + + u64_stats_update_begin(&stats64->syncp); + stats64->tx_packets++; + stats64->tx_bytes += len; + u64_stats_update_end(&stats64->syncp); + } else { + dev->stats.tx_dropped++; + } + + return ret; +} + +static void qmimux_get_stats64(struct net_device *net, + struct rtnl_link_stats64 *stats) +{ + struct qmimux_priv *priv = netdev_priv(net); + unsigned int start; + int cpu; + + netdev_stats_to_stats64(stats, &net->stats); + + for_each_possible_cpu(cpu) { + struct pcpu_sw_netstats *stats64; + u64 rx_packets, rx_bytes; + u64 tx_packets, tx_bytes; + + stats64 = per_cpu_ptr(priv->stats64, cpu); + + do { + start = u64_stats_fetch_begin_irq(&stats64->syncp); + rx_packets = stats64->rx_packets; + rx_bytes = stats64->rx_bytes; + tx_packets = stats64->tx_packets; + tx_bytes = stats64->tx_bytes; + } while (u64_stats_fetch_retry_irq(&stats64->syncp, start)); + + stats->rx_packets += rx_packets; + stats->rx_bytes += rx_bytes; + stats->tx_packets += tx_packets; + stats->tx_bytes += tx_bytes; + } } static const struct net_device_ops qmimux_netdev_ops = { - .ndo_open = qmimux_open, - .ndo_stop = qmimux_stop, - .ndo_start_xmit = qmimux_start_xmit, + .ndo_open = qmimux_open, + .ndo_stop = qmimux_stop, + .ndo_start_xmit = qmimux_start_xmit, + .ndo_get_stats64 = qmimux_get_stats64, }; static void qmimux_setup(struct net_device *dev) @@ -197,8 +245,19 @@ static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) } skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, pkt_len); - if (netif_rx(skbn) != NET_RX_SUCCESS) + if (netif_rx(skbn) != NET_RX_SUCCESS) { + net->stats.rx_errors++; return 0; + } else { + struct pcpu_sw_netstats *stats64; + struct qmimux_priv *priv = netdev_priv(net); + + stats64 = this_cpu_ptr(priv->stats64); + u64_stats_update_begin(&stats64->syncp); + stats64->rx_packets++; + stats64->rx_bytes += pkt_len; + u64_stats_update_end(&stats64->syncp); + } skip: offset += len + qmimux_hdr_sz; @@ -222,6 +281,12 @@ static int qmimux_register_device(struct net_device *real_dev, u8 mux_id) priv->mux_id = mux_id; priv->real_dev = real_dev; + priv->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + if (!priv->stats64) { + err = -ENOBUFS; + goto out_free_newdev; + } + err = register_netdevice(new_dev); if (err < 0) goto out_free_newdev; @@ -252,6 +317,7 @@ static void qmimux_unregister_device(struct net_device *dev, struct qmimux_priv *priv = netdev_priv(dev); struct net_device *real_dev = priv->real_dev; + free_percpu(priv->stats64); netdev_upper_dev_unlink(real_dev, dev); unregister_netdevice_queue(dev, head);

3 years, 6 months

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Re: Patch "Revert "ACPI: resources: Add checks for ACPI IRQ override"" has been added to the 5.13-stable tree

by PGNet Dev

On 7/31/21 2:56 AM, gregkh(a)linuxfoundation.org wrote: > > This is a note to let you know that I've just added the patch titled > > Revert "ACPI: resources: Add checks for ACPI IRQ override" > > to the 5.13-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > revert-acpi-resources-add-checks-for-acpi-irq-override.patch > and it can be found in the queue-5.13 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. > > > From e0eef3690dc66b3ecc6e0f1267f332403eb22bea Mon Sep 17 00:00:00 2001 > From: Hui Wang <hui.wang(a)canonical.com> > Date: Wed, 28 Jul 2021 23:19:58 +0800 > Subject: Revert "ACPI: resources: Add checks for ACPI IRQ override" > > From: Hui Wang <hui.wang(a)canonical.com> > > commit e0eef3690dc66b3ecc6e0f1267f332403eb22bea upstream. Confirming that this^ revert resolves the reported non-boot regression System does boot cleanly; but, then REboots @ 60 seconds. It's a known bug, with fix already in 5.13.9/stable: Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout" https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/… , causing TCO watchdog auto-reboot @ 60 secs. Although particularly nasty on servers with /boot on RAID, breaking arrays if watchdog boots before arrays correctly assembled, iiuc, it's UN-related With interim workaround edit /etc/modprobe.d/blacklist.conf + blacklist iTCO_wdt + blacklist iTCO_vendor_support for this second issue in place, 5.13.8 boots & appears stable.

3 years, 6 months

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Re: Futex crash in Normal 4.9 Kernel

by Greg KH

On Mon, Aug 09, 2021 at 05:52:17PM +0530, nelakurthi koteswararao wrote: > Dear Greg, > > Thank you for your reply. I noticed most of the futex changes between > 4.9.233 to 4.9.279 is related to Priority Inheritance that comes in > to use in the Real time kernel. But I am using the 4.9.232 Normal Kernel. I do not know what a "4.9.232 Normal Kernel" is. > That's the reason I posted futex crash to the mailing list for input. > is the race between futex_wait() thread and futex_wake() threads leading to > NULL pointer crash? any input in that direction? Again, please try the latest 4.9.y kernel release, we do not support older releases for obvious reasons. thanks, greg k-h

3 years, 6 months

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[PATCH] drm/i915: avoid uninitialised var in eb_parse()

by Jonathan Gray

The backport of c9d9fdbc108af8915d3f497bbdf3898bf8f321b8 to 5.10 in 6976f3cf34a1a8b791c048bbaa411ebfe48666b1 removed more than it should have leading to 'batch' being used uninitialised. The 5.13 backport and the mainline commit did not remove the portion this patch adds back. Signed-off-by: Jonathan Gray <jsg(a)jsg.id.au> Fixes: 6976f3cf34a1 ("drm/i915: Revert "drm/i915/gem: Asynchronous cmdparser"") Cc: <stable(a)vger.kernel.org> # 5.10 Cc: Jason Ekstrand <jason(a)jlekstrand.net> --- drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index e5ac0936a587..0c083af5a59d 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -2351,6 +2351,12 @@ static int eb_parse(struct i915_execbuffer *eb) eb->batch_flags |= I915_DISPATCH_SECURE; } + batch = eb_dispatch_secure(eb, shadow); + if (IS_ERR(batch)) { + err = PTR_ERR(batch); + goto err_trampoline; + } + err = intel_engine_cmd_parser(eb->engine, eb->batch->vma, eb->batch_start_offset, @@ -2377,6 +2383,7 @@ static int eb_parse(struct i915_execbuffer *eb) err_unpin_batch: if (batch) i915_vma_unpin(batch); +err_trampoline: if (trampoline) i915_vma_unpin(trampoline); err_shadow: -- 2.32.0

3 years, 6 months

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Re: Futex crash in Normal 4.9 Kernel

by Greg KH

On Mon, Aug 09, 2021 at 04:44:13PM +0530, nelakurthi koteswararao wrote: > Dear Stable kernel Contributors > > Observed Futex kernel crash while using navigation app in Broxton Device > flashed with Normal 4.9.x kernel. > Futex Crash details are given below. > {{ > 1>[ 1383.591633] Time of kernel crash: (2021-02-16 12:04:19) > <1>[ 1383.597480] BUG: unable to handle kernel NULL pointer dereference at > (null) > <1>[ 1383.606247] IP: [<ffffffffa211c271>] futex_wake+0xe1/0x180 > <4>[ 1383.612386] PGD 130f62067 > <4>[ 1383.615209] PUD 130f61067 > <4>[ 1383.618230] PMD 0 > <4>[ 1383.620275] > <4>[ 1383.621926] Oops: 0000 [#1] PREEMPT SMP > <4>[ 1383.626211] Modules linked in: bcmdhd(O) sxmio(C) rfkill_gpio > cfg80211 ehset dwc3_pci dwc3 ishtp_tty_client dabridge camera_status mei_me > anc_ipc igb_avb(O) mei xhci_pci xhci_hcd intel_ish_ipc intel_ishtp > snd_soc_bxt_ivi_ull trusty_timer trusty_wall trusty_log trusty_virtio > trusty_ipc dcsd_ts trusty_mem cyttsp6_i2c snd_soc_skl trusty > snd_soc_skl_ipc snd_soc_sst_ipc cyttsp6_device_access snd_soc_sst_dsp > snd_soc_sst_acpi virtio_ring snd_soc_sst_match snd_hda_ext_core > cyttsp6_debug snd_hda_core dcsd_display virtio cyttsp6 [last unloaded: > bcmdhd] > <4>[ 1383.680139] CPU: 2 PID: 7292 Comm: Thread-48 Tainted: G U C O > 4.9.232-quilt-2e5dc0ac-g33302ae #1 4.9.232 is quite old, it was released over a year ago. A large number of futexes fixes has gone in since then, can you please update to the latest 4.9.y release (4.9.279 as of today) and let us know if that solves the issue or not? thanks, greg k-h

3 years, 6 months

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[PATCH] arm64: vdso: Avoid ISB after reading from cntvct_el0

by Chanho Park

From: Will Deacon <will(a)kernel.org> commit 77ec462536a13d4b428a1eead725c4818a49f0b1 upstream. (The upstream patch was not marked as fixed but this can fix Fixes: 28b1a824a4f4 ("arm64: vdso: Substitute gettimeofday() with C implementation") sysbench memory comparison: - Before: 3072.00 MB transferred (2601.11 MB/sec) - After: 3072.00 MB transferred (3217.86 MB/sec) ) We can avoid the expensive ISB instruction after reading the counter in the vDSO gettime functions by creating a fake address hazard against a dummy stack read, just like we do inside the kernel. Fixes: 28b1a824a4f4 ("arm64: vdso: Substitute gettimeofday() with C implementation") Signed-off-by: Will Deacon <will(a)kernel.org> Reviewed-by: Vincenzo Frascino <vincenzo.frascino(a)arm.com> Link: https://lore.kernel.org/r/20210318170738.7756-5-will@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas(a)arm.com> CC: stable(a)vger.kernel.org Signed-off-by: Chanho Park <chanho61.park(a)samsung.com> --- I found this regression while executing below sysbench benchmark command. It showed lower score compared with internal 4.19 version. The regression can be seen from 5.4/5.10 kernel version. $ sysbench --test=memory --memory-block-size=1K --memory-scope=global --memory-total-size=3G --memory-oper=read run - Before: 3072.00 MB transferred (2601.11 MB/sec) - After: 3072.00 MB transferred (3217.86 MB/sec) I also tested this patch with below simple program and can showed similar result. - Before: Iter: 1000000 Diff: 65182.000000 usec - After : Iter: 1000000 Diff: 48707.000000 usec #include <stdio.h> #include <sys/time.h> #define LOOPCNT 1000000 int main(void) { struct timeval tv, start, end; int i; double diff; gettimeofday(&start, NULL); for (i = 0; i < LOOPCNT; i++) gettimeofday(&tv, NULL); gettimeofday(&end, NULL); diff = (end.tv_sec * 1000000 + end.tv_usec) - (start.tv_sec * 1000000 + start.tv_usec); printf("Iter: %d Diff: %f usec\n", LOOPCNT, diff); return 0; } arch/arm64/include/asm/arch_timer.h | 21 --------------------- arch/arm64/include/asm/barrier.h | 19 +++++++++++++++++++ arch/arm64/include/asm/vdso/gettimeofday.h | 6 +----- 3 files changed, 20 insertions(+), 26 deletions(-) diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h index 9f0ec21d6327..88d20f04c64a 100644 --- a/arch/arm64/include/asm/arch_timer.h +++ b/arch/arm64/include/asm/arch_timer.h @@ -165,25 +165,6 @@ static inline void arch_timer_set_cntkctl(u32 cntkctl) isb(); } -/* - * Ensure that reads of the counter are treated the same as memory reads - * for the purposes of ordering by subsequent memory barriers. - * - * This insanity brought to you by speculative system register reads, - * out-of-order memory accesses, sequence locks and Thomas Gleixner. - * - * http://lists.infradead.org/pipermail/linux-arm-kernel/2019-February/631195.… - */ -#define arch_counter_enforce_ordering(val) do { \ - u64 tmp, _val = (val); \ - \ - asm volatile( \ - " eor %0, %1, %1\n" \ - " add %0, sp, %0\n" \ - " ldr xzr, [%0]" \ - : "=r" (tmp) : "r" (_val)); \ -} while (0) - static __always_inline u64 __arch_counter_get_cntpct_stable(void) { u64 cnt; @@ -224,8 +205,6 @@ static __always_inline u64 __arch_counter_get_cntvct(void) return cnt; } -#undef arch_counter_enforce_ordering - static inline int arch_timer_arch_init(void) { return 0; diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h index c3009b0e5239..37d891af8ea5 100644 --- a/arch/arm64/include/asm/barrier.h +++ b/arch/arm64/include/asm/barrier.h @@ -70,6 +70,25 @@ static inline unsigned long array_index_mask_nospec(unsigned long idx, return mask; } +/* + * Ensure that reads of the counter are treated the same as memory reads + * for the purposes of ordering by subsequent memory barriers. + * + * This insanity brought to you by speculative system register reads, + * out-of-order memory accesses, sequence locks and Thomas Gleixner. + * + * http://lists.infradead.org/pipermail/linux-arm-kernel/2019-February/631195.… + */ +#define arch_counter_enforce_ordering(val) do { \ + u64 tmp, _val = (val); \ + \ + asm volatile( \ + " eor %0, %1, %1\n" \ + " add %0, sp, %0\n" \ + " ldr xzr, [%0]" \ + : "=r" (tmp) : "r" (_val)); \ +} while (0) + #define __smp_mb() dmb(ish) #define __smp_rmb() dmb(ishld) #define __smp_wmb() dmb(ishst) diff --git a/arch/arm64/include/asm/vdso/gettimeofday.h b/arch/arm64/include/asm/vdso/gettimeofday.h index 631ab1281633..4b4c0dac0e14 100644 --- a/arch/arm64/include/asm/vdso/gettimeofday.h +++ b/arch/arm64/include/asm/vdso/gettimeofday.h @@ -83,11 +83,7 @@ static __always_inline u64 __arch_get_hw_counter(s32 clock_mode, */ isb(); asm volatile("mrs %0, cntvct_el0" : "=r" (res) :: "memory"); - /* - * This isb() is required to prevent that the seq lock is - * speculated.# - */ - isb(); + arch_counter_enforce_ordering(res); return res; } -- 2.32.0

3 years, 6 months

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Linux-stable-mirror August 2021