April 2021 - Linux-stable-mirror

[PATCH v3 7/7] mtd: rawnand: txx9ndfmc: Fix external use of SW Hamming ECC helper

by Miquel Raynal

Since the Hamming software ECC engine has been updated to become a proper and independent ECC engine, it is now mandatory to either initialize the engine before using any one of his functions or use one of the bare helpers which only perform the calculations. As there is no actual need for a proper ECC initialization, let's just use the bare helper instead of the rawnand one. Fixes: 90ccf0a0192f ("mtd: nand: ecc-hamming: Rename the exported functions") Cc: stable(a)vger.kernel.org Signed-off-by: Miquel Raynal <miquel.raynal(a)bootlin.com> --- drivers/mtd/nand/raw/txx9ndfmc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/txx9ndfmc.c b/drivers/mtd/nand/raw/txx9ndfmc.c index 1a9449e53bf9..b8894ac27073 100644 --- a/drivers/mtd/nand/raw/txx9ndfmc.c +++ b/drivers/mtd/nand/raw/txx9ndfmc.c @@ -13,6 +13,7 @@ #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/mtd/mtd.h> +#include <linux/mtd/nand-ecc-sw-hamming.h> #include <linux/mtd/rawnand.h> #include <linux/mtd/partitions.h> #include <linux/io.h> @@ -193,8 +194,8 @@ static int txx9ndfmc_correct_data(struct nand_chip *chip, unsigned char *buf, int stat; for (eccsize = chip->ecc.size; eccsize > 0; eccsize -= 256) { - stat = rawnand_sw_hamming_correct(chip, buf, read_ecc, - calc_ecc); + stat = ecc_sw_hamming_correct(buf, read_ecc, calc_ecc, + chip->ecc.size, false); if (stat < 0) return stat; corrected += stat; -- 2.27.0

3 years, 6 months

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[PATCH v5 0/2] nvme-pci: add AMD PCIe quirk for NVMe simple suspend/resume

by Prike Liang

Those patch series can handle NVMe can't suspend to D3 during s2idle entry on some AMD platform. In this case, can be settld by assigning and passing a PCIe bus flag to the armed device which need NVMe shutdown opt in s2idle suspend and then use PCIe power setting to put the NVMe device to D3. Prike Liang (2): PCI: add AMD PCIe quirk for nvme shutdown opt nvme-pci: add AMD PCIe quirk for simple suspend/resume drivers/nvme/host/pci.c | 2 ++ drivers/pci/probe.c | 5 ++++- drivers/pci/quirks.c | 7 +++++++ include/linux/pci.h | 2 ++ 4 files changed, 15 insertions(+), 1 deletion(-) -- 2.7.4

3 years, 6 months

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[patch 1/6] Revert 337f13046ff0 ("futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op")

by Thomas Gleixner

The FUTEX_WAIT operand has historically a relative timeout which means that the clock id is irrelevant as relative timeouts on CLOCK_REALTIME are not subject to wall clock changes and therefore are mapped by the kernel to CLOCK_MONOTONIC for simplicity. If a caller would set FUTEX_CLOCK_REALTIME for FUTEX_WAIT the timeout is still treated relative vs. CLOCK_MONOTONIC and then the wait arms that timeout based on CLOCK_REALTIME which is broken and obviously has never been used or even tested. Reject any attempt to use FUTEX_CLOCK_REALTIME with FUTEX_WAIT again. The desired functionality can be achieved with FUTEX_WAIT_BITSET and a FUTEX_BITSET_MATCH_ANY argument. Fixes: 337f13046ff0 ("futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op") Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: stable(a)vger.kernel.org Cc: Darren Hart <dvhart(a)infradead.org> --- kernel/futex.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/kernel/futex.c +++ b/kernel/futex.c @@ -3711,8 +3711,7 @@ long do_futex(u32 __user *uaddr, int op, if (op & FUTEX_CLOCK_REALTIME) { flags |= FLAGS_CLOCKRT; - if (cmd != FUTEX_WAIT && cmd != FUTEX_WAIT_BITSET && \ - cmd != FUTEX_WAIT_REQUEUE_PI) + if (cmd != FUTEX_WAIT_BITSET && cmd != FUTEX_WAIT_REQUEUE_PI) return -ENOSYS; }

3 years, 6 months

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[patch 2/6] futex: Do not apply time namespace adjustment on FUTEX_LOCK_PI

by Thomas Gleixner

FUTEX_LOCK_PI does not require to have the FUTEX_CLOCK_REALTIME bit set because it has been using CLOCK_REALTIME based absolute timeouts forever. Due to that, the time namespace adjustment which is applied when FUTEX_CLOCK_REALTIME is not set, will wrongly take place for FUTEX_LOCK_PI and wreckage the timeout. Exclude it from that procedure. Fixes: c2f7d08cccf4 ("futex: Adjust absolute futex timeouts with per time namespace offset") Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: Andrei Vagin <avagin(a)gmail.com> Cc: stable(a)vger.kernel.org --- kernel/futex.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/kernel/futex.c +++ b/kernel/futex.c @@ -3781,7 +3781,7 @@ SYSCALL_DEFINE6(futex, u32 __user *, uad t = timespec64_to_ktime(ts); if (cmd == FUTEX_WAIT) t = ktime_add_safe(ktime_get(), t); - else if (!(op & FUTEX_CLOCK_REALTIME)) + else if (cmd != FUTEX_LOCK_PI && !(op & FUTEX_CLOCK_REALTIME)) t = timens_ktime_to_host(CLOCK_MONOTONIC, t); tp = &t; } @@ -3975,7 +3975,7 @@ SYSCALL_DEFINE6(futex_time32, u32 __user t = timespec64_to_ktime(ts); if (cmd == FUTEX_WAIT) t = ktime_add_safe(ktime_get(), t); - else if (!(op & FUTEX_CLOCK_REALTIME)) + else if (cmd != FUTEX_LOCK_PI && !(op & FUTEX_CLOCK_REALTIME)) t = timens_ktime_to_host(CLOCK_MONOTONIC, t); tp = &t; }

3 years, 6 months

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[PATCH v4 1/2] PCI: add AMD PCIe quirk for nvme shutdown opt

by Prike Liang

The NVME device pluged in some AMD PCIE root port will resume timeout from s2idle which caused by NVME power CFG lost in the SMU FW restore. This issue can be workaround by using PCIe power set with simple suspend/resume process path instead of APST. In the onwards ASIC will try do the NVME shutdown save and restore in the BIOS and still need PCIe power setting to resume from RTD3 for s2idle. In this preparation patch add a PCIe quirk for the AMD. Cc: <stable(a)vger.kernel.org> # 5.11+ Signed-off-by: Prike Liang <Prike.Liang(a)amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k(a)amd.com> [ck: split patches for nvme and pcie] Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni(a)wdc.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni(a)wdc.com> --- Changes in v2: Fix the patch format and check chip root complex DID instead of PCIe RP to avoid the storage device plugged in internal PCIe RP by USB adaptor. Changes in v3: According to Christoph Hellwig do NVME PCIe related identify opt better in PCIe quirk driver rather than in NVME module. Changes in v4: Split the fix to PCIe and NVMe part and then call the pci_dev_put() put the device reference count and finally refine the commit info. --- drivers/pci/quirks.c | 10 ++++++++++ include/linux/pci.h | 2 ++ 2 files changed, 12 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 653660e3..f95c8b2 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -312,6 +312,16 @@ static void quirk_nopciamd(struct pci_dev *dev) } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd); +static void quirk_amd_nvme_fixup(struct pci_dev *dev) +{ + struct pci_dev *rdev; + + dev->dev_flags |= PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND; + pci_info(dev, "AMD simple suspend opt enabled\n"); + +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x1630, quirk_amd_nvme_fixup); + /* Triton requires workarounds to be used by the drivers */ static void quirk_triton(struct pci_dev *dev) { diff --git a/include/linux/pci.h b/include/linux/pci.h index 53f4904..a6e1b1b 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -227,6 +227,8 @@ enum pci_dev_flags { PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10), /* Don't use Relaxed Ordering for TLPs directed at this device */ PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11), + /* AMD simple suspend opt quirk */ + PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND = (__force pci_dev_flags_t) (1 << 12), }; enum pci_irq_reroute_variant { -- 2.7.4

3 years, 6 months

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[PATCH] arm64: vdso: remove commas between macro name and arguments

by Jian Cai

LLVM's integrated assembler does not support using commas separating the name and arguments in .macro. However, only spaces are used in the manual page. This replaces commas between macro names and the subsequent arguments with space in calls to clock_gettime_return to make it compatible with IAS. Link: https://sourceware.org/binutils/docs/as/Macro.html#Macro Signed-off-by: Jian Cai <jiancai(a)google.com> --- arch/arm64/kernel/vdso/gettimeofday.S | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/kernel/vdso/gettimeofday.S b/arch/arm64/kernel/vdso/gettimeofday.S index 856fee6d3512..7ee685d9adfc 100644 --- a/arch/arm64/kernel/vdso/gettimeofday.S +++ b/arch/arm64/kernel/vdso/gettimeofday.S @@ -122,7 +122,7 @@ x_tmp .req x8 9998: .endm - .macro clock_gettime_return, shift=0 + .macro clock_gettime_return shift=0 .if \shift == 1 lsr x11, x11, x12 .endif @@ -227,7 +227,7 @@ realtime: seqcnt_check fail=realtime get_ts_realtime res_sec=x10, res_nsec=x11, \ clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9 - clock_gettime_return, shift=1 + clock_gettime_return shift=1 ALIGN monotonic: @@ -250,7 +250,7 @@ monotonic: clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9 add_ts sec=x10, nsec=x11, ts_sec=x3, ts_nsec=x4, nsec_to_sec=x9 - clock_gettime_return, shift=1 + clock_gettime_return shift=1 ALIGN monotonic_raw: @@ -271,7 +271,7 @@ monotonic_raw: clock_nsec=x15, nsec_to_sec=x9 add_ts sec=x10, nsec=x11, ts_sec=x13, ts_nsec=x14, nsec_to_sec=x9 - clock_gettime_return, shift=1 + clock_gettime_return shift=1 ALIGN realtime_coarse: -- 2.31.1.368.gbe11c130af-goog

3 years, 6 months

3
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[PATCH] Makefile: Move -Wno-unused-but-set-variable out of GCC only block

by Nathan Chancellor

Currently, -Wunused-but-set-variable is only supported by GCC so it is disabled unconditionally in a GCC only block (it is enabled with W=1). clang currently has its implementation for this warning in review so preemptively move this statement out of the GCC only block and wrap it with cc-disable-warning so that both compilers function the same. Cc: stable(a)vger.kernel.org Link: https://reviews.llvm.org/D100581 Signed-off-by: Nathan Chancellor <nathan(a)kernel.org> --- Makefile | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index f03888cdba4e..911d839cfea8 100644 --- a/Makefile +++ b/Makefile @@ -775,16 +775,16 @@ KBUILD_CFLAGS += -Wno-gnu KBUILD_CFLAGS += -mno-global-merge else -# These warnings generated too much noise in a regular build. -# Use make W=1 to enable them (see scripts/Makefile.extrawarn) -KBUILD_CFLAGS += -Wno-unused-but-set-variable - # Warn about unmarked fall-throughs in switch statement. # Disabled for clang while comment to attribute conversion happens and # https://github.com/ClangBuiltLinux/linux/issues/636 is discussed. KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough,) endif +# These warnings generated too much noise in a regular build. +# Use make W=1 to enable them (see scripts/Makefile.extrawarn) +KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) + KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable) ifdef CONFIG_FRAME_POINTER KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls base-commit: d8201efe75e13146ebde433745c7920e15593baf -- 2.31.1.362.g311531c9de

3 years, 6 months

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[PATCH] media: gspca: stv06xx: Fix memleak in stv06xx subdrivers

by Atul Gopinathan

During probing phase of a gspca driver in "gspca_dev_probe2()", the stv06xx subdrivers have certain sensor variants (namely, hdcs_1x00, hdcs_1020 and pb_0100) that allocate memory for their respective sensor which is passed to the "sd->sensor_priv" field. During the same probe routine, after "sensor_priv" allocation, there are chances of later functions invoked to fail which result in the probing routine to end immediately via "goto out" path. While doing so, the memory allocated earlier for the sensor isn't taken care of resulting in memory leak. Fix this by adding operations to the gspca, stv06xx and down to the sensor levels to free this allocated memory during gspca probe failure. - The current level of hierarchy looks something like this: gspca (main driver) represented by struct gspca_dev | ___________|_____________________________________ | | | | | | (subdrivers) | represented stv06xx by "struct sd" | _______________|_______________ | | | | | (sensors) | | hdcs_1x00/1020 pb01000 |_________________| | These three sensor variants allocate memory for "sd->sensor_priv" field. Here, "struct gspca_dev" is the representation used in the top level. In the sub-driver levels, "gspca_dev" pointer is cast to "struct sd*", something like this: struct sd *sd = (struct sd *)gspca_dev; This is possible because the first field of "struct sd" is "gspca_dev": struct sd { struct gspca_dev; . . } Therefore, to deallocate the "sd->sensor_priv" fields from "gspca_dev_probe2()" which is at the top level, the patch creates operations for the subdrivers and sensors to be invoked from the gspca driver levels. These operations essentially free the "sd->sensor_priv" which were allocated by the "config" and "init_controls" operations in the case of stv06xx sub-drivers and the sensor levels. This patch doesn't affect other sub-drivers or even sensors who never allocate memory to "sensor_priv". It has also been tested by syzbot and it returned an "OK" result. https://syzkaller.appspot.com/bug?id=ab69427f2911374e5f0b347d0d7795bfe38401… - Fixes: 4c98834addfe ("V4L/DVB (10048): gspca - stv06xx: New subdriver.") Cc: stable(a)vger.kernel.org Suggested-by: Shuah Khan <skhan(a)linuxfoundation.org> Reported-by: syzbot+990626a4ef6f043ed4cd(a)syzkaller.appspotmail.com Tested-by: syzbot+990626a4ef6f043ed4cd(a)syzkaller.appspotmail.com Signed-off-by: Atul Gopinathan <atulgopinathan(a)gmail.com> --- drivers/media/usb/gspca/gspca.c | 2 ++ drivers/media/usb/gspca/gspca.h | 1 + drivers/media/usb/gspca/stv06xx/stv06xx.c | 15 +++++++++++++++ drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c | 9 +++++++++ drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.h | 3 +++ drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c | 9 +++++++++ drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.h | 2 ++ drivers/media/usb/gspca/stv06xx/stv06xx_sensor.h | 3 +++ 8 files changed, 44 insertions(+) diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c index 158c8e28ed2c..88298d9f604d 100644 --- a/drivers/media/usb/gspca/gspca.c +++ b/drivers/media/usb/gspca/gspca.c @@ -1577,6 +1577,8 @@ int gspca_dev_probe2(struct usb_interface *intf, v4l2_ctrl_handler_free(gspca_dev->vdev.ctrl_handler); v4l2_device_unregister(&gspca_dev->v4l2_dev); kfree(gspca_dev->usb_buf); + if (sd_desc->free_sensor_priv) + sd_desc->free_sensor_priv(gspca_dev); kfree(gspca_dev); return ret; } diff --git a/drivers/media/usb/gspca/gspca.h b/drivers/media/usb/gspca/gspca.h index b0ced2e14006..792f19307b91 100644 --- a/drivers/media/usb/gspca/gspca.h +++ b/drivers/media/usb/gspca/gspca.h @@ -119,6 +119,7 @@ struct sd_desc { cam_streamparm_op set_streamparm; cam_format_op try_fmt; cam_frmsize_op enum_framesizes; + cam_op free_sensor_priv; #ifdef CONFIG_VIDEO_ADV_DEBUG cam_set_reg_op set_register; cam_get_reg_op get_register; diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx.c b/drivers/media/usb/gspca/stv06xx/stv06xx.c index 95673fc0a99c..de1daeb1a03c 100644 --- a/drivers/media/usb/gspca/stv06xx/stv06xx.c +++ b/drivers/media/usb/gspca/stv06xx/stv06xx.c @@ -529,6 +529,8 @@ static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, static int stv06xx_config(struct gspca_dev *gspca_dev, const struct usb_device_id *id); +static int stv06xx_free_sensor_priv(struct gspca_dev *gspca_dev); + /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, @@ -540,6 +542,7 @@ static const struct sd_desc sd_desc = { .pkt_scan = stv06xx_pkt_scan, .isoc_init = stv06xx_isoc_init, .isoc_nego = stv06xx_isoc_nego, + .free_sensor_priv = stv06xx_free_sensor_priv, #if IS_ENABLED(CONFIG_INPUT) .int_pkt_scan = sd_int_pkt_scan, #endif @@ -583,7 +586,19 @@ static int stv06xx_config(struct gspca_dev *gspca_dev, return -ENODEV; } +/* + * Free the memory allocated to sd->sensor_priv field during initial phases of + * gspca (probe/init_control) which later encountered error in the same phase. + */ +static int stv06xx_free_sensor_priv(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (sd->sensor->free_sensor_priv) + sd->sensor->free_sensor_priv(sd); + return 0; +} /* -- module initialisation -- */ static const struct usb_device_id device_table[] = { diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c b/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c index 5a47dcbf1c8e..50b7a80a855a 100644 --- a/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c +++ b/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c @@ -529,3 +529,12 @@ static int hdcs_dump(struct sd *sd) } return 0; } + +static int hdcs_deallocate(struct sd *sd) +{ + struct hdcs *hdcs = sd->sensor_priv; + + kfree(hdcs); + sd->sensor_priv = NULL; + return 0; +} diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.h b/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.h index 326a6eb68237..482e1a8e9a3b 100644 --- a/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.h +++ b/drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.h @@ -121,6 +121,7 @@ static int hdcs_init(struct sd *sd); static int hdcs_init_controls(struct sd *sd); static int hdcs_stop(struct sd *sd); static int hdcs_dump(struct sd *sd); +static int hdcs_deallocate(struct sd *sd); static int hdcs_set_exposure(struct gspca_dev *gspca_dev, __s32 val); static int hdcs_set_gain(struct gspca_dev *gspca_dev, __s32 val); @@ -142,6 +143,7 @@ const struct stv06xx_sensor stv06xx_sensor_hdcs1x00 = { .start = hdcs_start, .stop = hdcs_stop, .dump = hdcs_dump, + .free_sensor_priv = hdcs_deallocate, }; const struct stv06xx_sensor stv06xx_sensor_hdcs1020 = { @@ -161,6 +163,7 @@ const struct stv06xx_sensor stv06xx_sensor_hdcs1020 = { .start = hdcs_start, .stop = hdcs_stop, .dump = hdcs_dump, + .free_sensor_priv = hdcs_deallocate, }; static const u16 stv_bridge_init[][2] = { diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c index ae382b3b5f7f..97ea886698c1 100644 --- a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c +++ b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c @@ -318,6 +318,15 @@ static int pb0100_dump(struct sd *sd) return 0; } +static int pb0100_free_ctrls(struct sd *sd) +{ + struct pb0100_ctrls *ctrls = sd->sensor_priv; + + kfree(ctrls); + sd->sensor_priv = NULL; + return 0; +} + static int pb0100_set_gain(struct gspca_dev *gspca_dev, __s32 val) { int err; diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.h b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.h index c5a6614577de..12ec207f6bfa 100644 --- a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.h +++ b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.h @@ -102,6 +102,7 @@ static int pb0100_init(struct sd *sd); static int pb0100_init_controls(struct sd *sd); static int pb0100_stop(struct sd *sd); static int pb0100_dump(struct sd *sd); +static int pb0100_free_ctrls(struct sd *sd); /* V4L2 controls supported by the driver */ static int pb0100_set_gain(struct gspca_dev *gspca_dev, __s32 val); @@ -126,6 +127,7 @@ const struct stv06xx_sensor stv06xx_sensor_pb0100 = { .start = pb0100_start, .stop = pb0100_stop, .dump = pb0100_dump, + .free_sensor_priv = pb0100_free_ctrls, }; #endif diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_sensor.h b/drivers/media/usb/gspca/stv06xx/stv06xx_sensor.h index 67c13c689b9c..22c75c528331 100644 --- a/drivers/media/usb/gspca/stv06xx/stv06xx_sensor.h +++ b/drivers/media/usb/gspca/stv06xx/stv06xx_sensor.h @@ -69,6 +69,9 @@ struct stv06xx_sensor { /* Instructs the sensor to dump all its contents */ int (*dump)(struct sd *sd); + + /* Frees sensor_priv field during initial gspca probe errors */ + int (*free_sensor_priv)(struct sd *sd); }; #endif -- 2.25.1

3 years, 6 months

4
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stable tree request - [PATCH] platform/x86: thinkpad_acpi: Correct thermal sensor allocation

by Mark Pearson

Hi maintainer, I'm fairly new to contributing to the kernel and didn't know about the stable tree procedure so missed setting the CC:stable@vger.kernel.org in my patch submission; I'm following option 2 on the stable-kernel-rules guide. Subject: [PATCH] platform/x86: thinkpad_acpi: Correct thermal sensor allocation Upstream Commit ID: 6759e18e5cd8745a5dfc5726e4a3db5281ec1639 Reason: Some EC registers on Thinkpad machines were being incorrectly used as temperature sensors. One in particular was fooling thermald into thinking the system was hot when it wasn't, and keeping fans ramped up unnecessarily. I've been requested by some distro's to get this fix into the stable tree to make it easier for them to then pull into their releases. If it's possible to add this to 5.11 and maybe 5.10 that would be appreciated. Please let me know if you need anything or have any questions Many thanks Mark Pearson

3 years, 6 months

2
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[PATCH v2 5.10 0/9] preserve DMA offsets when using swiotlb

by Jianxiong Gao

We observed several NVMe failures when running with SWIOTLB. The root cause of the issue is that when data is mapped via SWIOTLB, the address offset is not preserved. Several device drivers including the NVMe driver relies on this offset to function correctly. Even though we discovered the error when running using AMD SEV, we have reproduced the same error in Rhel 8 without SEV. By adding swiotlb=force option to the boot command line parameter, NVMe funcionality is impacted. For example formatting a disk into xfs format returns an error. ---- Changes in v2: Rebased patches to 5.10.33 Updated patch description to correct format. Jianxiong Gao (9): driver core: add a min_align_mask field to struct device_dma_parameters swiotlb: add a IO_TLB_SIZE define swiotlb: factor out an io_tlb_offset helper swiotlb: factor out a nr_slots helper swiotlb: clean up swiotlb_tbl_unmap_single swiotlb: refactor swiotlb_tbl_map_single swiotlb: don't modify orig_addr in swiotlb_tbl_sync_single swiotlb: respect min_align_mask nvme-pci: set min_align_mask drivers/nvme/host/pci.c | 1 + include/linux/device.h | 1 + include/linux/dma-mapping.h | 16 +++ include/linux/swiotlb.h | 1 + kernel/dma/swiotlb.c | 259 ++++++++++++++++++++---------------- 5 files changed, 164 insertions(+), 114 deletions(-) -- 2.31.1.498.g6c1eba8ee3d-goog

3 years, 6 months

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Linux-stable-mirror April 2021