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2022-12-04docs: hwmon: (smpro-hwmon) Add documentationQuan Nguyen2-0/+102
Add documentation for the Ampere(R)'s Altra(R) SMpro hwmon driver. Signed-off-by: Thu Nguyen <thu@os.amperecomputing.com> Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com> Link: https://lore.kernel.org/r/20220929094321.770125-3-quan@os.amperecomputing.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04hwmon: Add Ampere's Altra smpro-hwmon driverQuan Nguyen3-0/+472
This commit adds support for Ampere SMpro hwmon driver. This driver supports accessing various CPU sensors provided by the SMpro co-processor including temperature, power, voltages, and current. Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com> Link: https://lore.kernel.org/r/20220929094321.770125-2-quan@os.amperecomputing.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04hwmon: (adm1177) simplify using devm_regulator_get_enable()Matti Vaittinen1-24/+3
Drop open-coded pattern: 'devm_regulator_get(), regulator_enable(), add_action_or_reset(regulator_disable)' and use the devm_regulator_get_enable() and drop the pointer to the regulator. This simplifies code and makes it less tempting to add manual control for the regulator which is also controlled by devm. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/7773541795f280db31dd981ffc21df8a630b794a.1666357434.git.mazziesaccount@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04hwmon: (lm90) simplify using devm_regulator_get_enable()Matti Vaittinen1-18/+2
Drop open-coded pattern: 'devm_regulator_get(), regulator_enable(), add_action_or_reset(regulator_disable)' and use the devm_regulator_get_enable(). Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/a1fa4364cbb775de25478117dd22dda0742089e3.1666357434.git.mazziesaccount@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04hwmon: use simple i2c probeStephen Kitt7-19/+14
All these drivers have an i2c probe function which doesn't use the "struct i2c_device_id *id" parameter, so they can trivially be converted to the "probe_new" style of probe with a single argument. This is part of an ongoing transition to single-argument i2c probe functions. Old-style probe functions involve a call to i2c_match_id: in drivers/i2c/i2c-core-base.c, /* * When there are no more users of probe(), * rename probe_new to probe. */ if (driver->probe_new) status = driver->probe_new(client); else if (driver->probe) status = driver->probe(client, i2c_match_id(driver->id_table, client)); else status = -EINVAL; Drivers which don't need the second parameter can be declared using probe_new instead, avoiding the call to i2c_match_id. Drivers which do can still be converted to probe_new-style, calling i2c_match_id themselves (as is done currently for of_match_id). This change was done using the following Coccinelle script, and fixed up for whitespace changes: @ rule1 @ identifier fn; identifier client, id; @@ - static int fn(struct i2c_client *client, const struct i2c_device_id *id) + static int fn(struct i2c_client *client) { ...when != id } @ rule2 depends on rule1 @ identifier rule1.fn; identifier driver; @@ struct i2c_driver driver = { - .probe + .probe_new = ( fn | - &fn + fn ) , }; Signed-off-by: Stephen Kitt <steve@sk2.org> Link: https://lore.kernel.org/r/20221011143309.3141267-1-steve@sk2.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04hwmon: (it87) Check for a valid chip before using force_idAhmad Khalifa1-1/+7
Check there is a chip before using force_id parameter as there is no value in registering a non-existent chip Signed-off-by: Ahmad Khalifa <ahmad@khalifa.ws> Link: https://lore.kernel.org/r/20221004210100.540120-3-ahmad@khalifa.ws Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04hwmon: (it87) Add param to ignore ACPI resource conflictsAhmad Khalifa1-2/+8
Add parameter to ignore ACPI resource conflicts as an alternate to using 'acpi_enforce_resources=lax'. Some BIOSes reserve resources and don't use them and the system wide parameter may result in failures to certain drivers. Signed-off-by: Ahmad Khalifa <ahmad@khalifa.ws> Link: https://lore.kernel.org/r/20221004210100.540120-2-ahmad@khalifa.ws Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04hwmon: (fschmd) Make const arrays static constColin Ian King1-2/+2
Don't populate the read-only const arrays names and watchdog_minors on the stack but instead make them static const. Also makes the object code a little smaller. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20221005152752.318493-1-colin.i.king@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04Linux 6.1-rc8v6.1-rc8Linus Torvalds1-1/+1
2022-12-04Revert "mm: align larger anonymous mappings on THP boundaries"Linus Torvalds1-3/+0
This reverts commit f35b5d7d676e59e401690b678cd3cfec5e785c23. It has been reported to cause huge performance regressions on some loads (will-it-scale.per_process_ops, but also building the kernel with clang). The commit did speed up gcc builds by a small amount, so it's not an unambiguous regression, but until the big regressions are understood, let's revert it. Reported-by: kernel test robot <yujie.liu@intel.com> Link: https://lore.kernel.org/r/202210181535.7144dd15-yujie.liu@intel.com Reported-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/lkml/Y1DNQaoPWxE%2BrGce@dev-arch.thelio-3990X/ Cc: Huang, Ying <ying.huang@intel.com> Cc: Rik van Riel <riel@surriel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-12-04char: tpm: Protect tpm_pm_suspend with locksJan Dabros1-2/+3
Currently tpm transactions are executed unconditionally in tpm_pm_suspend() function, which may lead to races with other tpm accessors in the system. Specifically, the hw_random tpm driver makes use of tpm_get_random(), and this function is called in a loop from a kthread, which means it's not frozen alongside userspace, and so can race with the work done during system suspend: tpm tpm0: tpm_transmit: tpm_recv: error -52 tpm tpm0: invalid TPM_STS.x 0xff, dumping stack for forensics CPU: 0 PID: 1 Comm: init Not tainted 6.1.0-rc5+ #135 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014 Call Trace: tpm_tis_status.cold+0x19/0x20 tpm_transmit+0x13b/0x390 tpm_transmit_cmd+0x20/0x80 tpm1_pm_suspend+0xa6/0x110 tpm_pm_suspend+0x53/0x80 __pnp_bus_suspend+0x35/0xe0 __device_suspend+0x10f/0x350 Fix this by calling tpm_try_get_ops(), which itself is a wrapper around tpm_chip_start(), but takes the appropriate mutex. Signed-off-by: Jan Dabros <jsd@semihalf.com> Reported-by: Vlastimil Babka <vbabka@suse.cz> Tested-by: Jason A. Donenfeld <Jason@zx2c4.com> Tested-by: Vlastimil Babka <vbabka@suse.cz> Link: https://lore.kernel.org/all/c5ba47ef-393f-1fba-30bd-1230d1b4b592@suse.cz/ Cc: stable@vger.kernel.org Fixes: e891db1a18bf ("tpm: turn on TPM on suspend for TPM 1.x") [Jason: reworked commit message, added metadata] Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-12-04Merge tag 'perf_urgent_for_v6.1_rc8' of ↵Linus Torvalds1-4/+13
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fix from Borislav Petkov: - Fix a use-after-free case where the perf pending task callback would see an already freed event * tag 'perf_urgent_for_v6.1_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix perf_pending_task() UaF
2022-12-04Merge tag 'timers_urgent_for_v6.1_rc8' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Borislav Petkov: - Revert a fix to RISC-V timers supposed to address an uncertainty whether clock events are received during S3 or not which locks up other RISC-V platforms. The issue will be fixed differently later. * tag 'timers_urgent_for_v6.1_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "clocksource/drivers/riscv: Events are stopped during CPU suspend"
2022-12-04Merge tag 'powerpc-6.1-6' of ↵Linus Torvalds2-31/+22
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix oops in 32-bit BPF tail call tests - Add missing declaration for machine_check_early_boot() Thanks to Christophe Leroy and Naveen N. Rao. * tag 'powerpc-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Add missing declaration for machine_check_early_boot() powerpc/bpf/32: Fix Oops on tail call tests
2022-12-04Merge tag 'input-for-v6.1-rc7' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fix from Dmitry Torokhov: - a fix for Raydium touchscreen driver to stop leaking memory when sending commands to the chip * tag 'input-for-v6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: raydium_ts_i2c - fix memory leak in raydium_i2c_send()
2022-12-03Merge tag 'i2c-for-6.1-rc8' of ↵Linus Torvalds5-11/+27
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "A power state fix in the core for ACPI devices, a regression fix regarding bus recovery for the cadence driver, a DMA handling fix for the imx driver, and two error path fixes (npcm7xx and qcom-geni)" * tag 'i2c-for-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: imx: Only DMA messages with I2C_M_DMA_SAFE flag set i2c: qcom-geni: fix error return code in geni_i2c_gpi_xfer i2c: cadence: Fix regression with bus recovery i2c: Restore initial power state if probe fails i2c: npcm7xx: Fix error handling in npcm_i2c_init()
2022-12-03Merge tag 'dax-fixes-6.1-rc8' of ↵Linus Torvalds2-16/+35
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull dax fixes from Dan Williams: "A few bug fixes around the handling of "Soft Reserved" memory and memory tiering information. Linux is starting to enounter more real world systems that deploy an ACPI HMAT to describe different performance classes of memory, as well the "special purpose" (Linux "Soft Reserved") designation from EFI. These fixes result from that testing. It has all appeared in -next for a while with no known issues. - Fix duplicate overlapping device-dax instances for HMAT described "Soft Reserved" Memory - Fix missing node targets in the sysfs representation of memory tiers - Remove a confusing variable initialization" * tag 'dax-fixes-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: device-dax: Fix duplicate 'hmem' device registration ACPI: HMAT: Fix initiator registration for single-initiator systems ACPI: HMAT: remove unnecessary variable initialization
2022-12-02Merge tag 'block-6.1-2022-12-02' of git://git.kernel.dk/linuxLinus Torvalds3-1/+6
Pull block fixes from Jens Axboe: "Just a small NVMe merge for this week, fixing protection of the name space list, and a missing clear of a reserved field when unused" * tag 'block-6.1-2022-12-02' of git://git.kernel.dk/linux: nvme: fix SRCU protection of nvme_ns_head list nvme-pci: clear the prp2 field when not used
2022-12-02Merge tag 'pinctrl-v6.1-5' of ↵Linus Torvalds3-5/+33
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: "Three driver fixes. The Intel fix looks like the most important. - Fix a potential divide by zero in pinctrl-singe (OMAP and HiSilicon) - Disable IRQs on startup in the Mediatek driver. This is a classic, we should be looking out for this more. - Save and restore pins in 'direct IRQ' mode in the Intel driver, this works around firmware bugs" * tag 'pinctrl-v6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: intel: Save and restore pins in "direct IRQ" mode pinctrl: meditatek: Startup with the IRQs disabled pinctrl: single: Fix potential division by zero
2022-12-02Merge tag 'riscv-for-linus-6.1-rc8' of ↵Linus Torvalds11-24/+187
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - build fix for the NR_CPUS Kconfig SBI version dependency - fixes to early memory initialization, to fix page permissions in EFI and post-initmem-free - build fix for the VDSO, to avoid trying to profile the VDSO functions - fixes for kexec crash handling, to fix multi-core and interrupt related initialization inside the crash kernel - fix for a race condition when handling multiple concurrect kernel stack overflows * tag 'riscv-for-linus-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: kexec: Fixup crash_smp_send_stop without multi cores riscv: kexec: Fixup irq controller broken in kexec crash path riscv: mm: Proper page permissions after initmem free riscv: vdso: fix section overlapping under some conditions riscv: fix race when vmap stack overflow riscv: Sync efi page table's kernel mappings before switching riscv: Fix NR_CPUS range conditions
2022-12-02Merge tag 'mmc-v6.1-rc5-2' of ↵Linus Torvalds8-17/+72
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "MMC core: - Fix ambiguous TRIM and DISCARD args - Fix removal of debugfs file for mmc_test MMC host: - mtk-sd: Add missing clk_disable_unprepare() in an error path - sdhci: Fix I/O voltage switch delay for UHS-I SD cards - sdhci-esdhc-imx: Fix CQHCI exit halt state check - sdhci-sprd: Fix voltage switch" * tag 'mmc-v6.1-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-sprd: Fix no reset data and command after voltage switch mmc: sdhci: Fix voltage switch delay mmc: mtk-sd: Fix missing clk_disable_unprepare in msdc_of_clock_parse() mmc: mmc_test: Fix removal of debugfs file mmc: sdhci-esdhc-imx: correct CQHCI exit halt state check mmc: core: Fix ambiguous TRIM and DISCARD arg
2022-12-02Merge tag 'iommu-fixes-v6.1-rc7' of ↵Linus Torvalds4-9/+88
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: "Intel VT-d fixes: - IO/TLB flush fix - Various pci_dev refcount fixes" * tag 'iommu-fixes-v6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() iommu/vt-d: Fix PCI device refcount leak in has_external_pci() iommu/vt-d: Fix PCI device refcount leak in prq_event_thread() iommu/vt-d: Add a fix for devices need extra dtlb flush
2022-12-02x86/bugs: Make sure MSR_SPEC_CTRL is updated properly upon resume from S3Pawan Gupta3-9/+16
The "force" argument to write_spec_ctrl_current() is currently ambiguous as it does not guarantee the MSR write. This is due to the optimization that writes to the MSR happen only when the new value differs from the cached value. This is fine in most cases, but breaks for S3 resume when the cached MSR value gets out of sync with the hardware MSR value due to S3 resetting it. When x86_spec_ctrl_current is same as x86_spec_ctrl_base, the MSR write is skipped. Which results in SPEC_CTRL mitigations not getting restored. Move the MSR write from write_spec_ctrl_current() to a new function that unconditionally writes to the MSR. Update the callers accordingly and rename functions. [ bp: Rework a bit. ] Fixes: caa0ff24d5d0 ("x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value") Suggested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Link: https://lore.kernel.org/r/806d39b0bfec2fe8f50dc5446dff20f5bb24a959.1669821572.git.pawan.kumar.gupta@linux.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-12-02Input: raydium_ts_i2c - fix memory leak in raydium_i2c_send()Zhang Xiaoxu1-1/+3
There is a kmemleak when test the raydium_i2c_ts with bpf mock device: unreferenced object 0xffff88812d3675a0 (size 8): comm "python3", pid 349, jiffies 4294741067 (age 95.695s) hex dump (first 8 bytes): 11 0e 10 c0 01 00 04 00 ........ backtrace: [<0000000068427125>] __kmalloc+0x46/0x1b0 [<0000000090180f91>] raydium_i2c_send+0xd4/0x2bf [raydium_i2c_ts] [<000000006e631aee>] raydium_i2c_initialize.cold+0xbc/0x3e4 [raydium_i2c_ts] [<00000000dc6fcf38>] raydium_i2c_probe+0x3cd/0x6bc [raydium_i2c_ts] [<00000000a310de16>] i2c_device_probe+0x651/0x680 [<00000000f5a96bf3>] really_probe+0x17c/0x3f0 [<00000000096ba499>] __driver_probe_device+0xe3/0x170 [<00000000c5acb4d9>] driver_probe_device+0x49/0x120 [<00000000264fe082>] __device_attach_driver+0xf7/0x150 [<00000000f919423c>] bus_for_each_drv+0x114/0x180 [<00000000e067feca>] __device_attach+0x1e5/0x2d0 [<0000000054301fc2>] bus_probe_device+0x126/0x140 [<00000000aad93b22>] device_add+0x810/0x1130 [<00000000c086a53f>] i2c_new_client_device+0x352/0x4e0 [<000000003c2c248c>] of_i2c_register_device+0xf1/0x110 [<00000000ffec4177>] of_i2c_notify+0x100/0x160 unreferenced object 0xffff88812d3675c8 (size 8): comm "python3", pid 349, jiffies 4294741070 (age 95.692s) hex dump (first 8 bytes): 22 00 36 2d 81 88 ff ff ".6-.... backtrace: [<0000000068427125>] __kmalloc+0x46/0x1b0 [<0000000090180f91>] raydium_i2c_send+0xd4/0x2bf [raydium_i2c_ts] [<000000001d5c9620>] raydium_i2c_initialize.cold+0x223/0x3e4 [raydium_i2c_ts] [<00000000dc6fcf38>] raydium_i2c_probe+0x3cd/0x6bc [raydium_i2c_ts] [<00000000a310de16>] i2c_device_probe+0x651/0x680 [<00000000f5a96bf3>] really_probe+0x17c/0x3f0 [<00000000096ba499>] __driver_probe_device+0xe3/0x170 [<00000000c5acb4d9>] driver_probe_device+0x49/0x120 [<00000000264fe082>] __device_attach_driver+0xf7/0x150 [<00000000f919423c>] bus_for_each_drv+0x114/0x180 [<00000000e067feca>] __device_attach+0x1e5/0x2d0 [<0000000054301fc2>] bus_probe_device+0x126/0x140 [<00000000aad93b22>] device_add+0x810/0x1130 [<00000000c086a53f>] i2c_new_client_device+0x352/0x4e0 [<000000003c2c248c>] of_i2c_register_device+0xf1/0x110 [<00000000ffec4177>] of_i2c_notify+0x100/0x160 After BANK_SWITCH command from i2c BUS, no matter success or error happened, the tx_buf should be freed. Fixes: 3b384bd6c3f2 ("Input: raydium_ts_i2c - do not split tx transactions") Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Link: https://lore.kernel.org/r/20221202103412.2120169-1-zhangxiaoxu5@huawei.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Merge tag 'sound-6.1-rc8' of ↵Linus Torvalds5-9/+38
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Likely the last piece for 6.1; the only significant fixes are ASoC core ops fixes, while others are device-specific (rather minor) fixes in ASoC and FireWire drivers. All appear safe enough to take as a late stage material" * tag 'sound-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: dice: fix regression for Lexicon I-ONIX FW810S ASoC: cs42l51: Correct PGA Volume minimum value ASoC: ops: Correct bounds check for second channel on SX controls ASoC: tlv320adc3xxx: Fix build error for implicit function declaration ASoC: ops: Check bounds for second channel in snd_soc_put_volsw_sx() ASoC: ops: Fix bounds check for _sx controls ASoC: fsl_micfil: explicitly clear CHnF flags ASoC: fsl_micfil: explicitly clear software reset bit
2022-12-02Merge tag 'drm-fixes-2022-12-02' of git://anongit.freedesktop.org/drm/drmLinus Torvalds5-8/+19
Pull drm fixes from Dave Airlie: "Things do seem to have finally settled down, just four i915 and one amdgpu this week. Probably won't have much for next week if you do push rc8 out. i915: - Fix dram info readout - Remove non-existent pipes from bigjoiner pipe mask - Fix negative value passed as remaining time - Never return 0 if not all requests retired amdgpu: - VCN fix for vangogh" * tag 'drm-fixes-2022-12-02' of git://anongit.freedesktop.org/drm/drm: drm/amdgpu: enable Vangogh VCN indirect sram mode drm/i915: Never return 0 if not all requests retired drm/i915: Fix negative value passed as remaining time drm/i915: Remove non-existent pipes from bigjoiner pipe mask drm/i915/mtl: Fix dram info readout
2022-12-02Merge tag 'mm-hotfixes-stable-2022-12-02' of ↵Linus Torvalds23-66/+240
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc hotfixes from Andrew Morton: "15 hotfixes, 11 marked cc:stable. Only three or four of the latter address post-6.0 issues, which is hopefully a sign that things are converging" * tag 'mm-hotfixes-stable-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: revert "kbuild: fix -Wimplicit-function-declaration in license_is_gpl_compatible" Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled drm/amdgpu: temporarily disable broken Clang builds due to blown stack-frame mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths mm/khugepaged: fix GUP-fast interaction by sending IPI mm/khugepaged: take the right locks for page table retraction mm: migrate: fix THP's mapcount on isolation mm: introduce arch_has_hw_nonleaf_pmd_young() mm: add dummy pmd_young() for architectures not having it mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes() tools/vm/slabinfo-gnuplot: use "grep -E" instead of "egrep" nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() hugetlb: don't delete vma_lock in hugetlb MADV_DONTNEED processing madvise: use zap_page_range_single for madvise dontneed mm: replace VM_WARN_ON to pr_warn if the node is offline with __GFP_THISNODE
2022-12-02v4l2: don't fall back to follow_pfn() if pin_user_pages_fast() failsLinus Torvalds1-56/+12
The V4L2_MEMORY_USERPTR interface is long deprecated and shouldn't be used (and is discouraged for any modern v4l drivers). And Seth Jenkins points out that the fallback to VM_PFNMAP/VM_IO is fundamentally racy and dangerous. Note that it's not even a case that should trigger, since any normal user pointer logic ends up just using the pin_user_pages_fast() call that does the proper page reference counting. That's not the problem case, only if you try to use special device mappings do you have any issues. Normally I'd just remove this during the merge window, but since Seth pointed out the problem cases, we really want to know as soon as possible if there are actually any users of this odd special case of a legacy interface. Neither Hans nor Mauro seem to think that such mis-uses of the old legacy interface should exist. As Mauro says: "See, V4L2 has actually 4 streaming APIs: - Kernel-allocated mmap (usually referred simply as just mmap); - USERPTR mmap; - read(); - dmabuf; The USERPTR is one of the oldest way to use it, coming from V4L version 1 times, and by far the least used one" And Hans chimed in on the USERPTR interface: "To be honest, I wouldn't mind if it goes away completely, but that's a bit of a pipe dream right now" but while removing this legacy interface entirely may be a pipe dream we can at least try to remove the unlikely (and actively broken) case of using special device mappings for USERPTR accesses. This replaces it with a WARN_ONCE() that we can remove once we've hopefully confirmed that no actual users exist. NOTE! Longer term, this means that a 'struct frame_vector' only ever contains proper page pointers, and all the games we have with converting them to pages can go away (grep for 'frame_vector_to_pages()' and the uses of 'vec->is_pfns'). But this is just the first step, to verify that this code really is all dead, and do so as quickly as possible. Reported-by: Seth Jenkins <sethjenkins@google.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-12-02Merge tag 'nvme-6.1-2022-01-02' of git://git.infradead.org/nvme into block-6.1Jens Axboe3-1/+6
Pull NVMe fixes from Christoph: "nvme fixes for Linux 6.1 - fix SRCU protection of nvme_ns_head list (Caleb Sander) - clear the prp2 field when not used (Lei Rao)" * tag 'nvme-6.1-2022-01-02' of git://git.infradead.org/nvme: nvme: fix SRCU protection of nvme_ns_head list nvme-pci: clear the prp2 field when not used
2022-12-02iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()Xiongfeng Wang1-0/+1
for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the error path to avoid reference count leak. Fixes: 2e4552893038 ("iommu/vt-d: Unify the way to process DMAR device scope array") Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Link: https://lore.kernel.org/r/20221121113649.190393-3-wangxiongfeng2@huawei.com Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2022-12-02iommu/vt-d: Fix PCI device refcount leak in has_external_pci()Xiongfeng Wang1-1/+3
for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() before 'return true' to avoid reference count leak. Fixes: 89a6079df791 ("iommu/vt-d: Force IOMMU on for platform opt in hint") Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Link: https://lore.kernel.org/r/20221121113649.190393-2-wangxiongfeng2@huawei.com Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2022-12-02iommu/vt-d: Fix PCI device refcount leak in prq_event_thread()Yang Yingliang1-5/+9
As comment of pci_get_domain_bus_and_slot() says, it returns a pci device with refcount increment, when finish using it, the caller must decrease the reference count by calling pci_dev_put(). So call pci_dev_put() after using the 'pdev' to avoid refcount leak. Besides, if the 'pdev' is null or intel_svm_prq_report() returns error, there is no need to trace this fault. Fixes: 06f4b8d09dba ("iommu/vt-d: Remove unnecessary SVA data accesses in page fault path") Suggested-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20221119144028.2452731-1-yangyingliang@huawei.com Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2022-12-02iommu/vt-d: Add a fix for devices need extra dtlb flushJacob Pan3-3/+75
QAT devices on Intel Sapphire Rapids and Emerald Rapids have a defect in address translation service (ATS). These devices may inadvertently issue ATS invalidation completion before posted writes initiated with translated address that utilized translations matching the invalidation address range, violating the invalidation completion ordering. This patch adds an extra device TLB invalidation for the affected devices, it is needed to ensure no more posted writes with translated address following the invalidation completion. Therefore, the ordering is preserved and data-corruption is prevented. Device TLBs are invalidated under the following six conditions: 1. Device driver does DMA API unmap IOVA 2. Device driver unbind a PASID from a process, sva_unbind_device() 3. PASID is torn down, after PASID cache is flushed. e.g. process exit_mmap() due to crash 4. Under SVA usage, called by mmu_notifier.invalidate_range() where VM has to free pages that were unmapped 5. userspace driver unmaps a DMA buffer 6. Cache invalidation in vSVA usage (upcoming) For #1 and #2, device drivers are responsible for stopping DMA traffic before unmap/unbind. For #3, iommu driver gets mmu_notifier to invalidate TLB the same way as normal user unmap which will do an extra invalidation. The dTLB invalidation after PASID cache flush does not need an extra invalidation. Therefore, we only need to deal with #4 and #5 in this patch. #1 is also covered by this patch due to common code path with #5. Tested-by: Yuzhang Luo <yuzhang.luo@intel.com> Reviewed-by: Ashok Raj <ashok.raj@intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Link: https://lore.kernel.org/r/20221130062449.1360063-1-jacob.jun.pan@linux.intel.com Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2022-12-02Merge tag 'amd-drm-fixes-6.1-2022-12-01' of ↵Dave Airlie1-0/+3
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.1-2022-12-01: amdgpu: - VCN fix for vangogh Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221201202015.5931-1-alexander.deucher@amd.com
2022-12-02i2c: imx: Only DMA messages with I2C_M_DMA_SAFE flag setAndrew Lunn1-2/+4
Recent changes to the DMA code has resulting in the IMX driver failing I2C transfers when the buffer has been vmalloc. Only perform DMA transfers if the message has the I2C_M_DMA_SAFE flag set, indicating the client is providing a buffer which is DMA safe. This is a minimal fix for stable. The I2C core provides helpers to allocate a bounce buffer. For a fuller fix the master should make use of these helpers. Fixes: 4544b9f25e70 ("dma-mapping: Add vmap checks to dma_map_single()") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-12-01i2c: qcom-geni: fix error return code in geni_i2c_gpi_xferWang Yufen1-1/+0
Fix to return a negative error code from the gi2c->err instead of 0. Fixes: d8703554f4de ("i2c: qcom-geni: Add support for GPI DMA") Signed-off-by: Wang Yufen <wangyufen@huawei.com> Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasoluitons.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-12-01i2c: cadence: Fix regression with bus recoveryCarsten Haitzler1-3/+8
Commit "i2c: cadence: Add standard bus recovery support" breaks for i2c devices that have no pinctrl defined. There is no requirement for this to exist in the DT. This has worked perfectly well without this before in at least 1 real usage case on hardware (Mali Komeda DPU, Cadence i2c to talk to a tda99xx phy). Adding the requirement to have pinctrl set up in the device tree (or otherwise be found) is a regression where the whole i2c device is lost entirely (in this case dropping entire devices which then leads to the drm display stack unable to find the phy for display output, thus having no drm display device and so on down the chain). This converts the above commit to an enhancement if pinctrl can be found for the i2c device, providing a timeout on read with recovery, but if not, do what used to be done rather than a fatal loss of a device. This restores the mentioned display devices to their working state again. Fixes: 58b924241d0a ("i2c: cadence: Add standard bus recovery support") Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com> Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com> Reviewed-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Acked-by: Michal Simek <michal.simek@amd.com> [wsa: added braces to else-branch] Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-12-02Merge tag 'drm-intel-fixes-2022-12-01' of ↵Dave Airlie4-8/+16
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - Fix dram info readout (Radhakrishna Sripada) - Remove non-existent pipes from bigjoiner pipe mask (Ville Syrjälä) - Fix negative value passed as remaining time (Janusz Krzysztofik) - Never return 0 if not all requests retired (Janusz Krzysztofik) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/Y4hp+a3TJ13t2ZA1@tursulin-desk
2022-12-01error-injection: Add prompt for function error injectionSteven Rostedt (Google)1-1/+7
The config to be able to inject error codes into any function annotated with ALLOW_ERROR_INJECTION() is enabled when FUNCTION_ERROR_INJECTION is enabled. But unfortunately, this is always enabled on x86 when KPROBES is enabled, and there's no way to turn it off. As kprobes is useful for observability of the kernel, it is useful to have it enabled in production environments. But error injection should be avoided. Add a prompt to the config to allow it to be disabled even when kprobes is enabled, and get rid of the "def_bool y". This is a kernel debug feature (it's in Kconfig.debug), and should have never been something enabled by default. Cc: stable@vger.kernel.org Fixes: 540adea3809f6 ("error-injection: Separate error-injection from kprobe") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-12-01drm/amdgpu: enable Vangogh VCN indirect sram modeLeo Liu1-0/+3
So that uses PSP to initialize HW. Fixes: 0c2c02b66c672e ("drm/amdgpu/vcn: add firmware support for dimgrey_cavefish") Signed-off-by: Leo Liu <leo.liu@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2022-12-01RISC-V: Fix a race condition during kernel stack overflowPalmer Dabbelt3-0/+32
This fixes a concrete bug but is also the basis for some cleanup work, so I'm merging it based on the offending commit in order to minimize future conflicts. * commit '7e1864332fbc1b993659eab7974da9fe8bf8c128': riscv: fix race when vmap stack overflow
2022-12-01Merge tag 'efi-fixes-for-v6.1-4' of ↵Linus Torvalds4-69/+2
git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull EFI fix from Ard Biesheuvel: "A single revert for some code that I added during this cycle. The code is not wrong, but it should be a bit more careful about how to handle the shadow call stack pointer, so it is better to revert it for now and bring it back later in improved form. Summary: - Revert runtime service sync exception recovery on arm64" * tag 'efi-fixes-for-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: arm64: efi: Revert "Recover from synchronous exceptions ..."
2022-12-01Merge tag 'hwmon-for-v6.1-rc8' of ↵Linus Torvalds6-5/+15
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - Fix refcount leak and NULL pointer access in coretemp driver - Fix UAF in ibmpex driver - Add missing pci_disable_device() to i5500_temp driver - Fix calculation in ina3221 driver - Fix temperature scaling in ltc2947 driver - Check result of devm_kcalloc call in asus-ec-sensors driver * tag 'hwmon-for-v6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (asus-ec-sensors) Add checks for devm_kcalloc hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() hwmon: (coretemp) Check for null before removing sysfs attrs hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails hwmon: (i5500_temp) fix missing pci_disable_device() hwmon: (ina3221) Fix shunt sum critical calculation hwmon: (ltc2947) fix temperature scaling
2022-12-01hwmon: (asus-ec-sensors) Add checks for devm_kcallocYuan Can1-0/+2
As the devm_kcalloc may return NULL, the return value needs to be checked to avoid NULL poineter dereference. Fixes: d0ddfd241e57 ("hwmon: (asus-ec-sensors) add driver for ASUS EC") Signed-off-by: Yuan Can <yuancan@huawei.com> Link: https://lore.kernel.org/r/20221125014329.121560-1-yuancan@huawei.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-01hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new()Yang Yingliang1-1/+4
As comment of pci_get_domain_bus_and_slot() says, it returns a pci device with refcount increment, when finish using it, the caller must decrement the reference count by calling pci_dev_put(). So call it after using to avoid refcount leak. Fixes: 14513ee696a0 ("hwmon: (coretemp) Use PCI host bridge ID to identify CPU if necessary") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20221118093303.214163-1-yangyingliang@huawei.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-01hwmon: (coretemp) Check for null before removing sysfs attrsPhil Auld1-0/+4
If coretemp_add_core() gets an error then pdata->core_data[indx] is already NULL and has been kfreed. Don't pass that to sysfs_remove_group() as that will crash in sysfs_remove_group(). [Shortened for readability] [91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label' <cpu offline> [91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188 [91855.165103] #PF: supervisor read access in kernel mode [91855.194506] #PF: error_code(0x0000) - not-present page [91855.224445] PGD 0 P4D 0 [91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI ... [91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80 ... [91855.796571] Call Trace: [91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp] [91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp] [91855.871107] cpuhp_invoke_callback+0x105/0x4b0 [91855.893432] cpuhp_thread_fun+0x8e/0x150 ... Fix this by checking for NULL first. Signed-off-by: Phil Auld <pauld@redhat.com> Cc: linux-hwmon@vger.kernel.org Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221117162313.3164803-1-pauld@redhat.com Fixes: 199e0de7f5df3 ("hwmon: (coretemp) Merge pkgtemp with coretemp") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-01arm64: efi: Revert "Recover from synchronous exceptions ..."Ard Biesheuvel4-69/+2
This reverts commit 23715a26c8d81291, which introduced some code in assembler that manipulates both the ordinary and the shadow call stack pointer in a way that could potentially be taken advantage of. So let's revert it, and do a better job the next time around. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2022-12-01Revert "clocksource/drivers/riscv: Events are stopped during CPU suspend"Conor Dooley1-1/+1
This reverts commit 232ccac1bd9b5bfe73895f527c08623e7fa0752d. On the subject of suspend, the RISC-V SBI spec states: This does not cover whether any given events actually reach the hart or not, just what the hart will do if it receives an event. On PolarFire SoC, and potentially other SiFive based implementations, events from the RISC-V timer do reach a hart during suspend. This is not the case for the implementation on the Allwinner D1 - there timer events are not received during suspend. To fix this, the CLOCK_EVT_FEAT_C3STOP (mis)feature was enabled for the timer driver - but this has broken both RCU stall detection and timers generally on PolarFire SoC and potentially other SiFive based implementations. If an AXI read to the PCIe controller on PolarFire SoC times out, the system will stall, however, with CLOCK_EVT_FEAT_C3STOP active, the system just locks up without RCU stalling: io scheduler mq-deadline registered io scheduler kyber registered microchip-pcie 2000000000.pcie: host bridge /soc/pcie@2000000000 ranges: microchip-pcie 2000000000.pcie: MEM 0x2008000000..0x2087ffffff -> 0x0008000000 microchip-pcie 2000000000.pcie: sec error in pcie2axi buffer microchip-pcie 2000000000.pcie: ded error in pcie2axi buffer microchip-pcie 2000000000.pcie: axi read request error microchip-pcie 2000000000.pcie: axi read timeout microchip-pcie 2000000000.pcie: sec error in pcie2axi buffer microchip-pcie 2000000000.pcie: ded error in pcie2axi buffer microchip-pcie 2000000000.pcie: sec error in pcie2axi buffer microchip-pcie 2000000000.pcie: ded error in pcie2axi buffer microchip-pcie 2000000000.pcie: sec error in pcie2axi buffer microchip-pcie 2000000000.pcie: ded error in pcie2axi buffer Freeing initrd memory: 7332K Similarly issues were reported with clock_nanosleep() - with a test app that sleeps each cpu for 6, 5, 4, 3 ms respectively, HZ=250 & the blamed commit in place, the sleep times are rounded up to the next jiffy: == CPU: 1 == == CPU: 2 == == CPU: 3 == == CPU: 4 == Mean: 7.974992 Mean: 7.976534 Mean: 7.962591 Mean: 3.952179 Std Dev: 0.154374 Std Dev: 0.156082 Std Dev: 0.171018 Std Dev: 0.076193 Hi: 9.472000 Hi: 10.495000 Hi: 8.864000 Hi: 4.736000 Lo: 6.087000 Lo: 6.380000 Lo: 4.872000 Lo: 3.403000 Samples: 521 Samples: 521 Samples: 521 Samples: 521 Fortunately, the D1 has a second timer, which is "currently used in preference to the RISC-V/SBI timer driver" so a revert here does not hurt operation of D1 in its current form. Ultimately, a DeviceTree property (or node) will be added to encode the behaviour of the timers, but until then revert the addition of CLOCK_EVT_FEAT_C3STOP. Fixes: 232ccac1bd9b ("clocksource/drivers/riscv: Events are stopped during CPU suspend") Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Acked-by: Samuel Holland <samuel@sholland.org> Link: https://lore.kernel.org/linux-riscv/YzYTNQRxLr7Q9JR0@spud/ Link: https://github.com/riscv-non-isa/riscv-sbi-doc/issues/98/ Link: https://lore.kernel.org/linux-riscv/bf6d3b1f-f703-4a25-833e-972a44a04114@sholland.org/ Link: https://lore.kernel.org/r/20221122121620.3522431-1-conor.dooley@microchip.com
2022-12-01mmc: sdhci-sprd: Fix no reset data and command after voltage switchWenchao Chen1-1/+3
After switching the voltage, no reset data and command will cause CMD2 timeout. Fixes: 29ca763fc26f ("mmc: sdhci-sprd: Add pin control support for voltage switch") Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20221130121328.25553-1-wenchao.chen@unisoc.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-11-30Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds8-64/+21
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A set of clk driver fixes that resolve issues for various SoCs. Most of these are incorrect clk data, like bad parent descriptions. When the clk tree is improperly described things don't work, like USB and UFS controllers, because clk frequencies are wonky. Here are the extra details: - Fix the parent of UFS reference clks on Qualcomm SC8280XP so that UFS works properly - Fix the clk ID for USB on AT91 RM9200 so the USB driver continues to probe - Stop using of_device_get_match_data() on the wrong device for a Samsung Exynos driver so it gets the proper clk data - Fix ExynosAutov9 binding - Fix the parent of the div4 clk on Exynos7885 - Stop calling runtime PM APIs from the Qualcomm GDSC driver directly as it leads to a lockdep splat and is just plain wrong because it violates runtime PM semantics by calling runtime PM APIs when the device has been runtime PM disabled" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: gcc-sc8280xp: add cxo as parent for three ufs ref clks ARM: at91: rm9200: fix usb device clock id clk: samsung: Revert "clk: samsung: exynos-clkout: Use of_device_get_match_data()" dt-bindings: clock: exynosautov9: fix reference to CMU_FSYS1 clk: qcom: gdsc: Remove direct runtime PM calls clk: samsung: exynos7885: Correct "div4" clock parents
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-28 17:25:38 +0000