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We should not have any callers of this from non-task context, but Jakub
ran [1] into one from blk-iocost. Rather than risk running into others,
or future ones, just limit blk_time_get_ns() to when it is called from
a task. Any other usage is invalid.
[1] https://lore.kernel.org/lkml/CAHk-=wiOaBLqarS2uFhM1YdwOvCX4CZaWkeyNDY1zONpbYw2ig@mail.gmail.com/
Fixes: da4c8c3d0975 ("block: cache current nsec time in struct blk_plug")
Reported-by: Jakub Kicinski <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Add argument descriptions to the handle_eject_request() kerneldoc
comment.
Signed-off-by: Yang Li <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
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In the existing code, per-policy flags don't have any impact i.e.
if cpufreq_driver boost is enabled and boost is disabled for one or
more of the policies, the cpufreq driver will behave as if boost is
enabled.
Fix this by incorporating per-policy boost flag in the policy->max
computation used in cpufreq_frequency_table_cpuinfo and setting the
default per-policy boost to mirror the cpufreq_driver boost flag.
Fixes: 218a06a79d9a ("cpufreq: Support per-policy performance boost")
Reported-by: Dietmar Eggemann <[email protected]>
Reviewed-by: Viresh Kumar <[email protected]>
Reviewed-by: Dhruva Gole <[email protected]>
Signed-off-by: Sibi Sankar <[email protected]>
Tested-by:Yipeng Zou <[email protected]> <mailto:[email protected]>
Reviewed-by: Yipeng Zou <[email protected]> <mailto:[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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As Linus suggested this enables pidfs unconditionally. A key property to
retain is the ability to compare pidfds by inode number (cf. [1]).
That's extremely helpful just as comparing namespace file descriptors by
inode number is. They are used in a variety of scenarios where they need
to be compared, e.g., when receiving a pidfd via SO_PEERPIDFD from a
socket to trivially authenticate a the sender and various other
use-cases.
For 64bit systems this is pretty trivial to do. For 32bit it's slightly
more annoying as we discussed but we simply add a dumb ida based
allocator that gets used on 32bit. This gives the same guarantees about
inode numbers on 64bit without any overflow risk. Practically, we'll
never run into overflow issues because we're constrained by the number
of processes that can exist on 32bit and by the number of open files
that can exist on a 32bit system. On 64bit none of this matters and
things are very simple.
If 32bit also needs the uniqueness guarantee they can simply parse the
contents of /proc/<pid>/fd/<nr>. The uniqueness guarantees have a
variety of use-cases. One of the most obvious ones is that they will
make pidfiles (or "pidfdfiles", I guess) reliable as the unique
identifier can be placed into there that won't be reycled. Also a
frequent request.
Note, I took the chance and simplified path_from_stashed() even further.
Instead of passing the inode number explicitly to path_from_stashed() we
let the filesystem handle that internally. So path_from_stashed() ends
up even simpler than it is now. This is also a good solution allowing
the cleanup code to be clean and consistent between 32bit and 64bit. The
cleanup path in prepare_anon_dentry() is also switched around so we put
the inode before the dentry allocation. This means we only have to call
the cleanup handler for the filesystem's inode data once and can rely
->evict_inode() otherwise.
Aside from having to have a bit of extra code for 32bit it actually ends
up a nice cleanup for path_from_stashed() imho.
Tested on both 32 and 64bit including error injection.
Link: https://github.com/systemd/systemd/pull/31713 [1]
Link: https://lore.kernel.org/r/20240312-dingo-sehnlich-b3ecc35c6de7@brauner
Signed-off-by: Christian Brauner <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Typos are bad. Fix them.
Signed-off-by: Saravana Kannan <[email protected]>
Reviewed-by: Dhruva Gole <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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The EM only supports power in uW. Make sure that it is not possible to
register some downstream driver which doesn't provide power in uW.
The only exception is artificial EM, but that EM is ignored by the rest of
kernel frameworks (thermal, powercap, etc).
Reported-by: PoShao Chen <[email protected]>
Signed-off-by: Lukasz Luba <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <[email protected]>
Reviewed-by: Zhang Rui <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull modules updates from Luis Chamberlain:
"Christophe Leroy did most of the work on this release, first with a
few cleanups on CONFIG_STRICT_KERNEL_RWX and ending with error
handling for when set_memory_XX() can fail.
This is part of a larger effort to clean up all these callers which
can fail, modules is just part of it"
* tag 'modules-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
module: Don't ignore errors from set_memory_XX()
lib/test_kmod: fix kernel-doc warnings
powerpc: Simplify strict_kernel_rwx_enabled()
modules: Remove #ifdef CONFIG_STRICT_MODULE_RWX around rodata_enabled
init: Declare rodata_enabled and mark_rodata_ro() at all time
module: Change module_enable_{nx/x/ro}() to more explicit names
module: Use set_memory_rox()
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
- Measure initrd and command line using the CC protocol if the ordinary
TCG2 protocol is not implemented, typically on TDX confidential VMs
- Avoid creating mappings that are both writable and executable while
running in the EFI boot services. This is a prerequisite for getting
the x86 shim loader signed by MicroSoft again, which allows the
distros to install on x86 PCs that ship with EFI secure boot enabled.
- API update for struct platform_driver::remove()
* tag 'efi-next-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
virt: efi_secret: Convert to platform remove callback returning void
x86/efistub: Remap kernel text read-only before dropping NX attribute
efi/libstub: Add get_event_log() support for CC platforms
efi/libstub: Measure into CC protocol if TCG2 protocol is absent
efi/libstub: Add Confidential Computing (CC) measurement typedefs
efi/tpm: Use symbolic GUID name from spec for final events table
efi/libstub: Use TPM event typedefs from the TCG PC Client spec
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'clk-rate-exclusive' into clk-next
- Increase dev_id len for clkdev lookups
* clk-samsung: (25 commits)
clk: samsung: Add CPU clock support for Exynos850
clk: samsung: Pass mask to wait_until_mux_stable()
clk: samsung: Keep register offsets in chip specific structure
clk: samsung: Keep CPU clock chip specific data in a dedicated struct
clk: samsung: Pass register layout type explicitly to CLK_CPU()
clk: samsung: Pass actual CPU clock registers base to CPU_CLK()
clk: samsung: Group CPU clock functions by chip
clk: samsung: Use single CPU clock notifier callback for all chips
clk: samsung: Reduce params count in exynos_register_cpu_clock()
clk: samsung: Pull struct exynos_cpuclk into clk-cpu.c
clk: samsung: Improve clk-cpu.c style
dt-bindings: clock: exynos850: Add CMU_CPUCLK0 and CMU_CPUCL1
clk: samsung: gs101: add support for cmu_peric1
clk: samsung: gs101: drop extra empty line
dt-bindings: clock: google,gs101-clock: add PERIC1 clock management unit
clk: samsung: exynos850: Propagate SPI IPCLK rate change
clk: samsung: gs101: gpio_peric0_pclk needs to be kept on
clk: samsung: exynos850: Add PDMA clocks
dt-bindings: clock: tesla,fsd: Fix spelling mistake
clk: samsung: gs101: add support for cmu_peric0
...
* clk-imx:
clk: imx: imx8mp: Fix SAI_MCLK_SEL definition
clk: imx: scu: Use common error handling code in imx_clk_scu_alloc_dev()
clk: imx: composite-8m: Delete two unnecessary initialisations in __imx8m_clk_hw_composite()
clk: imx: composite-8m: Less function calls in __imx8m_clk_hw_composite() after error detection
* clk-rockchip:
clk: rockchip: rk3399: Allow to set rate of clk_i2s0_frac's parent
clk: rockchip: rk3588: use linked clock ID for GATE_LINK
clk: rockchip: rk3588: fix indent
clk: rockchip: rk3588: fix pclk_vo0grf and pclk_vo1grf
dt-bindings: clock: rk3588: add missing PCLK_VO1GRF
dt-bindings: clock: rk3588: drop CLK_NR_CLKS
clk: rockchip: rk3588: fix CLK_NR_CLKS usage
clk: rockchip: rk3568: Add PLL rate for 128MHz
* clk-clkdev:
clkdev: Update clkdev id usage to allow for longer names
* clk-rate-exclusive:
clk: Add a devm variant of clk_rate_exclusive_get()
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Merge additional thermal control changes for 6.9-rc1 from Daniel Lezcano:
"- Fix memory leak in the error path at probe time in the Mediatek LVTS
driver (Christophe Jaillet)
- Fix control buffer enablement regression on Meditek MT7896 (Frank
Wunderlich)
- Drop spaces before TABs in different places: thermal-of, ST drivers
and Makefile (Geert Uytterhoeven)
- Adjust DT binding for NXP as fsl,tmu-range min/maxItems can vary
among several SoC versions (Fabio Estevam)
- Add support for H616 THS controller for the Sun8i platforms. Note
that this change relies on another change in the SoC specific code
which is included in this branch (Martin Botka)
- Don't fail probe due to zone registration failure because there is
no trip points defined in the DT (Mark Brown)
- Support variable TMU array size for new platforms (Peng Fan)
- Adjust the DT binding for thermal-of and make the polling time not
required and assume it is zero when not found in the DT (Konrad
Dybcio)
- Add r8a779h0 support in both the DT and the driver (Geert Uytterhoeven)"
* tag 'thermal-v6.9-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
thermal/drivers/rcar_gen3: Add support for R-Car V4M
dt-bindings: thermal: rcar-gen3-thermal: Add r8a779h0 support
thermal/of: Assume polling-delay(-passive) 0 when absent
dt-bindings: thermal-zones: Don't require polling-delay(-passive)
thermal/drivers/qoriq: Fix getting tmu range
thermal/drivers/sun8i: Don't fail probe due to zone registration failure
thermal/drivers/sun8i: Add support for H616 THS controller
thermal/drivers/sun8i: Add SRAM register access code
thermal/drivers/sun8i: Extend H6 calibration to support 4 sensors
thermal/drivers/sun8i: Explain unknown H6 register value
dt-bindings: thermal: sun8i: Add H616 THS controller
soc: sunxi: sram: export register 0 for THS on H616
dt-bindings: thermal: qoriq-thermal: Adjust fsl,tmu-range min/maxItems
thermal: Drop spaces before TABs
thermal/drivers/mediatek: Fix control buffer enablement on MT7896
thermal/drivers/mediatek/lvts_thermal: Fix a memory leak in an error handling path
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'clk-microchip' into clk-next
* clk-remove:
clk: starfive: jh7110-vout: Convert to platform remove callback returning void
clk: starfive: jh7110-isp: Convert to platform remove callback returning void
clk: imx: imx8-acm: Convert to platform remove callback returning void
* clk-amlogic:
clk: meson: Add missing clocks to axg_clk_regmaps
* clk-qcom: (62 commits)
clk: qcom: gcc-ipq5018: fix register offset for GCC_UBI0_AXI_ARES reset
clk: qcom: gcc-ipq5018: fix 'halt_reg' offset of 'gcc_pcie1_pipe_clk'
clk: qcom: gcc-ipq5018: fix 'enable_reg' offset of 'gcc_gmac0_sys_clk'
clk: qcom: camcc-x1e80100: Fix missing DT_IFACE enum in x1e80100 camcc
clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays
clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
clk: qcom: camcc-sc8280xp: fix terminating of frequency table arrays
clk: qcom: gcc-ipq9574: fix terminating of frequency table arrays
clk: qcom: gcc-ipq8074: fix terminating of frequency table arrays
clk: qcom: gcc-ipq6018: fix terminating of frequency table arrays
clk: qcom: gcc-ipq5018: fix terminating of frequency table arrays
clk: qcom: dispcc-sdm845: Adjust internal GDSC wait times
dt-bindings: clk: qcom: drop the SC7180 Modem subsystem clock controller
clk: qcom: drop the SC7180 Modem subsystem clock driver
clk: qcom: Use qcom_branch_set_clk_en()
clk: qcom: branch: Add a helper for setting the enable bit
clk: qcom: dispcc-sm8250: Make clk_init_data and pll_vco const
clk: qcom: gcc-sc8180x: Add missing UFS QREF clocks
clk: qcom: gcc-msm8953: add more resets
clk: qcom: videocc-*: switch to module_platform_driver
...
* clk-parent:
clk: Fix clk_core_get NULL dereference
* clk-microchip:
clk: microchip: mpfs: convert MSSPLL outputs to clk_divider
clk: microchip: mpfs: add missing MSSPLL outputs
clk: microchip: mpfs: setup for using other mss pll outputs
clk: microchip: mpfs: split MSSPLL in two
dt-bindings: can: mpfs: add missing required clock
dt-bindings: clock: mpfs: add more MSSPLL output definitions
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'clk-allwinner' into clk-next
* clk-aspeed:
clk: ast2600: Add FSI parent clock with correct rate
dt-bindings: clock: ast2600: Add FSI clock
* clk-keystone:
clk: keystone: sci-clk: Adding support for non contiguous clocks
* clk-mobileye:
dt-bindings: reset: mobileye,eyeq5-reset: add bindings
dt-bindings: clock: mobileye,eyeq5-clk: add bindings
clk: fixed-factor: add fwname-based constructor functions
clk: fixed-factor: add optional accuracy support
* clk-allwinner:
clk: sunxi: usb: fix kernel-doc warnings
clk: sunxi: sun9i-cpus: fix kernel-doc warnings
clk: sunxi: a20-gmac: fix kernel-doc warnings
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and 'clk-bulk' into clk-next
- Add a devm_clk_bulk_get_all_enable() API to get and enable all clks
for a device
- Fix some static checker errors in the hisilicon clk driver
* clk-renesas: (25 commits)
clk: renesas: r8a779h0: Add RPC-IF clock
clk: renesas: r8a779h0: Add SYS-DMAC clocks
clk: renesas: r8a779h0: Add SDHI clock
clk: renesas: r8a779h0: Add EtherAVB clocks
clk: renesas: r9a07g04[34]: Fix typo for sel_shdi variable
clk: renesas: r9a07g04[34]: Use SEL_SDHI1_STS status configuration for SD1 mux
clk: renesas: r8a779f0: Correct PFC/GPIO parent clock
clk: renesas: r8a779g0: Correct PFC/GPIO parent clocks
clk: renesas: r8a779h0: Add I2C clocks
clk: renesas: r8a779h0: Add watchdog clock
clk: renesas: r8a779h0: Add PFC/GPIO clocks
clk: renesas: r8a779g0: Fix PCIe clock name
clk: renesas: cpg-mssr: Add support for R-Car V4M
clk: renesas: rcar-gen4: Add support for FRQCRC1
clk: renesas: r9a07g043: Add clock and reset entries for CRU
clk: renesas: r9a08g045: Add clock and reset support for watchdog
dt-bindings: clock: Add R8A779H0 V4M CPG Core Clock Definitions
dt-bindings: clock: renesas,cpg-mssr: Document R-Car V4M support
dt-bindings: power: Add r8a779h0 SYSC power domain definitions
dt-bindings: power: renesas,rcar-sysc: Document R-Car V4M support
...
* clk-cleanup:
clk: zynq: Prevent null pointer dereference caused by kmalloc failure
clk: fractional-divider: Use bit operations consistently
clk: fractional-divider: Move mask calculations out of lock
clk: ti: dpll3xxx: use correct function names in kernel-doc
clk: clocking-wizard: Remove redundant initialization of pointer div_addr
clk: keystone: sci-clk: match func name comment to actual
clk: cdce925: Remove redundant assignment to variable 'rate'
MAINTAINERS: drop Sekhar Nori
* clk-hisilicon:
clk: hisilicon: Use devm_kcalloc() instead of devm_kzalloc()
clk: hisilicon: hi3559a: Fix an erroneous devm_kfree()
clk: hisilicon: hi3519: Release the correct number of gates in hi3519_clk_unregister()
* clk-mediatek:
clk: mediatek: clk-mt8173-apmixedsys: Use common error handling code in clk_mt8173_apmixed_probe()
clk: mediatek: add infracfg reset controller for mt7988
dt-bindings: reset: mediatek: add MT7988 infracfg reset IDs
dt-bindings: clock: mediatek: convert SSUSBSYS to the json-schema clock
dt-bindings: clock: mediatek: convert PCIESYS to the json-schema clock
dt-bindings: clock: mediatek: convert hifsys to the json-schema clock
clk: mediatek: mt7981-topckgen: flag SGM_REG_SEL as critical
clk: mediatek: mt8183: Correct parent of CLK_INFRA_SSPM_32K_SELF
clk: mediatek: mt7622-apmixedsys: Fix an error handling path in clk_mt8135_apmixed_probe()
clk: mediatek: mt8135: Fix an error handling path in clk_mt8135_apmixed_probe()
* clk-bulk:
clk: Provide managed helper to get and enable bulk clocks
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git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm updates from Jarkko Sakkinen:
"Small bug fixes and device tree updates. No new features"
* tag 'tpmdd-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm: tis_i2c: Add compatible string nuvoton,npct75x
tpm_tis: Add compatible string atmel,at97sc3204
tpm_tis_spi: Add compatible string atmel,attpm20p
dt-bindings: tpm: Add compatible string atmel,attpm20p
tpm,tpm_tis: Avoid warning splat at shutdown
tpm/tpm_ftpm_tee: fix all kernel-doc warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox
Pull mailbox updates from Jassi Brar:
- imx: add support for i.MX95 ELE/V2X MU
- misc: I will be signing-off from my personal gmail id from now on
* tag 'mailbox-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox:
mailbox: imx: support i.MX95 Generic/ELE/V2X MU
mailbox: imx: populate sub-nodes
mailbox: imx: get RR/TR registers num from Parameter register
mailbox: imx: support return value of init
dt-bindings: mailbox: fsl,mu: add i.MX95 Generic/ELE/V2X MU compatible
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Most compressors are actually CPU-based and won't sleep during compression
and decompression. We should remove the redundant memcpy for them.
This patch checks if the algorithm is sleepable by testing the
CRYPTO_ALG_ASYNC algorithm flag.
Generally speaking, async and sleepable are semantically similar but not
equal. But for compress drivers, they are basically equal at least due to
the below facts.
Firstly, scompress drivers - crypto/deflate.c, lz4.c, zstd.c, lzo.c etc
have no sleep. Secondly, zRAM has been using these scompress drivers for
years in atomic contexts, and never worried those drivers going to sleep.
One exception is that an async driver can sometimes still return
synchronously per Herbert's clarification. In this case, we are still
having a redundant memcpy. But we can't know if one particular acomp
request will sleep or not unless crypto can expose more details for each
specific request from offload drivers.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Barry Song <[email protected]>
Tested-by: Chengming Zhou <[email protected]>
Reviewed-by: Nhat Pham <[email protected]>
Acked-by: Yosry Ahmed <[email protected]>
Reviewed-by: Chengming Zhou <[email protected]>
Acked-by: Chris Li <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
Cc: Dan Streetman <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: Seth Jennings <[email protected]>
Cc: Vitaly Wool <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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acomp's users might want to know if acomp is really async to optimize
themselves. One typical user which can benefit from exposed async stat is
zswap.
In zswap, zsmalloc is the most commonly used allocator for (and perhaps
the only one). For zsmalloc, we cannot sleep while we map the compressed
memory, so we copy it to a temporary buffer. By knowing the alg won't
sleep can help zswap to avoid the need for a buffer. This shows
noticeable improvement in load/store latency of zswap.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Barry Song <[email protected]>
Acked-by: Herbert Xu <[email protected]>
Acked-by: Chris Li <[email protected]>
Cc: Chengming Zhou <[email protected]>
Cc: Dan Streetman <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Nhat Pham <[email protected]>
Cc: Seth Jennings <[email protected]>
Cc: Vitaly Wool <[email protected]>
Cc: Yosry Ahmed <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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memtest failed to find bad memory when compiled with clang. So use
{WRITE,READ}_ONCE to access memory to avoid compiler over optimization.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Qiang Zhang <[email protected]>
Cc: Bill Wendling <[email protected]>
Cc: Justin Stitt <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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In a Copy-on-Write (CoW) scenario, the last subpage will reuse the entire
large folio, resulting in the waste of (nr_pages - 1) pages. This wasted
memory remains allocated until it is either unmapped or memory reclamation
occurs.
The following small program can serve as evidence of this behavior
main()
{
#define SIZE 1024 * 1024 * 1024UL
void *p = malloc(SIZE);
memset(p, 0x11, SIZE);
if (fork() == 0)
_exit(0);
memset(p, 0x12, SIZE);
printf("done\n");
while(1);
}
For example, using a 1024KiB mTHP by:
echo always > /sys/kernel/mm/transparent_hugepage/hugepages-1024kB/enabled
(1) w/o the patch, it takes 2GiB,
Before running the test program,
/ # free -m
total used free shared buff/cache available
Mem: 5754 84 5692 0 17 5669
Swap: 0 0 0
/ # /a.out &
/ # done
After running the test program,
/ # free -m
total used free shared buff/cache available
Mem: 5754 2149 3627 0 19 3605
Swap: 0 0 0
(2) w/ the patch, it takes 1GiB only,
Before running the test program,
/ # free -m
total used free shared buff/cache available
Mem: 5754 89 5687 0 17 5664
Swap: 0 0 0
/ # /a.out &
/ # done
After running the test program,
/ # free -m
total used free shared buff/cache available
Mem: 5754 1122 4655 0 17 4632
Swap: 0 0 0
This patch migrates the last subpage to a small folio and immediately
returns the large folio to the system. It benefits both memory availability
and anti-fragmentation.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Barry Song <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Cc: Ryan Roberts <[email protected]>
Cc: Lance Yang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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This reverts one change in commit 924bd6a8c967 ("mm/x86: drop two
unnecessary pud_leaf() definitions").
One issue with that is it broke nopmd builds for at least both arm64 and
riscv (CONFIG_PGTABLE_LEVELS=2). The other issue is it was overlooked that
it's a common change rather than x86 specific (relevant to the commit
message of the commit).
Normally there's no need for empty definition of pXd_leaf() because of the
fallback functions, however this logic may not apply to pgtable-nopmd.h,
because that's a header that can even be used by arch *pgtable.h headers,
which can use the *_leaf() definitions _before_ the fallback functions are
defined. Leave it there to pass PGTABLE_LEVELS=2 builds.
Link: https://lkml.kernel.org/r/Ze8vFNV9YSdgC2S7@x1n
Fixes: 924bd6a8c967 ("mm/x86: drop two unnecessary pud_leaf() definitions")
Signed-off-by: Peter Xu <[email protected]>
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Cc: Jason Gunthorpe <[email protected]>
Cc: Mike Rapoport (IBM) <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These mostly change the thermal core in a few ways allowing thermal
drivers to be simplified, in particular in their removal and failing
probe handling parts that are notoriously prone to errors, and
propagate the changes to several drivers.
Apart from that, support for a new platform is added (Intel Lunar
Lake-M), some bugs are fixed and some code is cleaned up, as usual.
Specifics:
- Store zone trips table and zone operations directly in struct
thermal_zone_device (Rafael Wysocki)
- Fix up flex array initialization during thermal zone device
registration (Nathan Chancellor)
- Rework writable trip points handling in the thermal core and
several drivers (Rafael Wysocki)
- Thermal core code cleanups (Dan Carpenter, Flavio Suligoi)
- Use thermal zone accessor functions in the int340x Intel thermal
driver (Rafael Wysocki)
- Add Lunar Lake-M PCI ID to the int340x Intel thermal driver
(Srinivas Pandruvada)
- Minor fixes for thermal governors (Rafael Wysocki, Di Shen)
- Trip point handling fixes for the iwlwifi wireless driver (Rafael
Wysocki)
- Code cleanups (Rafael J. Wysocki, AngeloGioacchino Del Regno)"
* tag 'thermal-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (29 commits)
thermal: core: remove unnecessary check in trip_point_hyst_store()
thermal: intel: int340x_thermal: Use thermal zone accessor functions
thermal: core: Remove excess empty line from a comment
thermal: int340x: processor_thermal: Add Lunar Lake-M PCI ID
thermal: core: Eliminate writable trip points masks
thermal: of: Set THERMAL_TRIP_FLAG_RW_TEMP directly
thermal: imx: Set THERMAL_TRIP_FLAG_RW_TEMP directly
wifi: iwlwifi: mvm: Set THERMAL_TRIP_FLAG_RW_TEMP directly
mlxsw: core_thermal: Set THERMAL_TRIP_FLAG_RW_TEMP directly
thermal: intel: Set THERMAL_TRIP_FLAG_RW_TEMP directly
thermal: core: Drop the .set_trip_hyst() thermal zone operation
thermal: core: Add flags to struct thermal_trip
thermal: core: Move initial num_trips assignment before memcpy()
thermal: Get rid of CONFIG_THERMAL_WRITABLE_TRIPS
thermal: intel: Adjust ops handling during thermal zone registration
thermal: ACPI: Constify acpi_thermal_zone_ops
thermal: core: Store zone ops in struct thermal_zone_device
thermal: intel: Discard trip tables after zone registration
thermal: ACPI: Discard trips table after zone registration
thermal: core: Store zone trips table in struct thermal_zone_device
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These modify the ACPI device events and processor enumeration code to
take the 'enabled' _STA bit into account as mandated by the ACPI
specification, convert several platform drivers to using a remove
callback that returns void, add some new quirks for ACPI IRQ override
and other things, address assorted issues and clean up code.
Specifics:
- Rearrange Device Check and Bus Check notification handling in the
ACPI device hotplug code to make it get the "enabled" _STA bit into
account (Rafael Wysocki)
- Modify acpi_processor_add() to skip processors with the "enabled"
_STA bit clear, as per the specification (Rafael Wysocki)
- Stop failing Device Check notification handling without a valid
reason (Rafael Wysocki)
- Defer enumeration of devices that depend on a device with an ACPI
device ID equalt to INTC10CF to address probe ordering issues on
some platforms (Wentong Wu)
- Constify acpi_bus_type (Ricardo Marliere)
- Make the ACPI-specific suspend-to-idle code take the Low-Power S0
Idle MSFT UUID into account on non-AMD systems (Rafael Wysocki)
- Add ACPI IRQ override quirks for some new platforms (Sergey
Kalinichev, Maxim Kudinov, Alexey Froloff, Sviatoslav Harasymchuk,
Nicolas Haye)
- Make the NFIT parsing code use acpi_evaluate_dsm_typed() (Andy
Shevchenko)
- Fix a memory leak in acpi_processor_power_exit() (Armin Wolf)
- Make it possible to quirk the CSI-2 and MIPI DisCo for Imaging
properties parsing and add a quirk for Dell XPS 9315 (Sakari Ailus)
- Prevent false-positive static checker warnings from triggering by
intializing some variables in the ACPI thermal code to zero (Colin
Ian King)
- Add DELL0501 handling to acpi_quirk_skip_serdev_enumeration() and
make that function generic (Hans de Goede)
- Make the ACPI backlight code handle fetching EDID that is longer
than 256 bytes (Mario Limonciello)
- Skip initialization of GHES_ASSIST structures for Machine Check
Architecture in APEI (Avadhut Naik)
- Convert several plaform drivers in the ACPI subsystem to using a
remove callback that returns void (Uwe Kleine-König)
- Drop the long-deprecated custom_method debugfs interface that is
problematic from the security standpoint (Rafael Wysocki)
- Use %pe in a couple of places in the ACPI code for easier error
decoding (Onkarnath)
- Fix register width information handling during system memory
accesses in the ACPI CPPC library (Jarred White)
- Add AMD CPPC V2 support for family 17h processors to the ACPI CPPC
library (Perry Yuan)"
* tag 'acpi-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (35 commits)
ACPI: resource: Use IRQ override on Maibenben X565
ACPI: CPPC: Use access_width over bit_width for system memory accesses
ACPI: CPPC: enable AMD CPPC V2 support for family 17h processors
ACPI: APEI: Skip initialization of GHES_ASSIST structures for Machine Check Architecture
ACPI: scan: Consolidate Device Check and Bus Check notification handling
ACPI: scan: Rework Device Check and Bus Check notification handling
ACPI: scan: Make acpi_processor_add() check the device enabled bit
ACPI: scan: Relocate acpi_bus_trim_one()
ACPI: scan: Fix device check notification handling
ACPI: resource: Add MAIBENBEN X577 to irq1_edge_low_force_override
ACPI: pfr_update: Convert to platform remove callback returning void
ACPI: pfr_telemetry: Convert to platform remove callback returning void
ACPI: fan: Convert to platform remove callback returning void
ACPI: GED: Convert to platform remove callback returning void
ACPI: DPTF: Convert to platform remove callback returning void
ACPI: AGDI: Convert to platform remove callback returning void
ACPI: TAD: Convert to platform remove callback returning void
ACPI: APEI: GHES: Convert to platform remove callback returning void
ACPI: property: Polish ignoring bad data nodes
ACPI: thermal_lib: Initialize temp_decik to zero
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"From the functional perspective, the most significant change here is
the addition of support for Energy Models that can be updated
dynamically at run time.
There is also the addition of LZ4 compression support for hibernation,
the new preferred core support in amd-pstate, new platforms support in
the Intel RAPL driver, new model-specific EPP handling in intel_pstate
and more.
Apart from that, the cpufreq default transition delay is reduced from
10 ms to 2 ms (along with some related adjustments), the system
suspend statistics code undergoes a significant rework and there is a
usual bunch of fixes and code cleanups all over.
Specifics:
- Allow the Energy Model to be updated dynamically (Lukasz Luba)
- Add support for LZ4 compression algorithm to the hibernation image
creation and loading code (Nikhil V)
- Fix and clean up system suspend statistics collection (Rafael
Wysocki)
- Simplify device suspend and resume handling in the power management
core code (Rafael Wysocki)
- Fix PCI hibernation support description (Yiwei Lin)
- Make hibernation take set_memory_ro() return values into account as
appropriate (Christophe Leroy)
- Set mem_sleep_current during kernel command line setup to avoid an
ordering issue with handling it (Maulik Shah)
- Fix wake IRQs handling when pm_runtime_force_suspend() is used as a
driver's system suspend callback (Qingliang Li)
- Simplify pm_runtime_get_if_active() usage and add a replacement for
pm_runtime_put_autosuspend() (Sakari Ailus)
- Add a tracepoint for runtime_status changes tracking (Vilas Bhat)
- Fix section title markdown in the runtime PM documentation (Yiwei
Lin)
- Enable preferred core support in the amd-pstate cpufreq driver
(Meng Li)
- Fix min_perf assignment in amd_pstate_adjust_perf() and make the
min/max limit perf values in amd-pstate always stay within the
(highest perf, lowest perf) range (Tor Vic, Meng Li)
- Allow intel_pstate to assign model-specific values to strings used
in the EPP sysfs interface and make it do so on Meteor Lake
(Srinivas Pandruvada)
- Drop long-unused cpudata::prev_cummulative_iowait from the
intel_pstate cpufreq driver (Jiri Slaby)
- Prevent scaling_cur_freq from exceeding scaling_max_freq when the
latter is an inefficient frequency (Shivnandan Kumar)
- Change default transition delay in cpufreq to 2ms (Qais Yousef)
- Remove references to 10ms minimum sampling rate from comments in
the cpufreq code (Pierre Gondois)
- Honour transition_latency over transition_delay_us in cpufreq (Qais
Yousef)
- Stop unregistering cpufreq cooling on CPU hot-remove (Viresh Kumar)
- General enhancements / cleanups to ARM cpufreq drivers (tianyu2,
Nícolas F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia
Belova)
- Update cpufreq-dt-platdev to block/approve devices (Richard Acayan)
- Make the SCMI cpufreq driver get a transition delay value from
firmware (Pierre Gondois)
- Prevent the haltpoll cpuidle governor from shrinking guest
poll_limit_ns below grow_start (Parshuram Sangle)
- Avoid potential overflow in integer multiplication when computing
cpuidle state parameters (C Cheng)
- Adjust MWAIT hint target C-state computation in the ACPI cpuidle
driver and in intel_idle to return a correct value for C0 (He
Rongguang)
- Address multiple issues in the TPMI RAPL driver and add support for
new platforms (Lunar Lake-M, Arrow Lake) to Intel RAPL (Zhang Rui)
- Fix freq_qos_add_request() return value check in dtpm_cpu (Daniel
Lezcano)
- Fix kernel-doc for dtpm_create_hierarchy() (Yang Li)
- Fix file leak in get_pkg_num() in x86_energy_perf_policy (Samasth
Norway Ananda)
- Fix cpupower-frequency-info.1 man page typo (Jan Kratochvil)
- Fix a couple of warnings in the OPP core code related to W=1 builds
(Viresh Kumar)
- Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h (Viresh
Kumar)
- Extend dev_pm_opp_data with turbo support (Sibi Sankar)
- dt-bindings: drop maxItems from inner items (David Heidelberg)"
* tag 'pm-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (95 commits)
dt-bindings: opp: drop maxItems from inner items
OPP: debugfs: Fix warning around icc_get_name()
OPP: debugfs: Fix warning with W=1 builds
cpufreq: Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h
OPP: Extend dev_pm_opp_data with turbo support
Fix cpupower-frequency-info.1 man page typo
cpufreq: scmi: Set transition_delay_us
firmware: arm_scmi: Populate fast channel rate_limit
firmware: arm_scmi: Populate perf commands rate_limit
cpuidle: ACPI/intel: fix MWAIT hint target C-state computation
PM: sleep: wakeirq: fix wake irq warning in system suspend
powercap: dtpm: Fix kernel-doc for dtpm_create_hierarchy() function
cpufreq: Don't unregister cpufreq cooling on CPU hotplug
PM: suspend: Set mem_sleep_current during kernel command line setup
cpufreq: Honour transition_latency over transition_delay_us
cpufreq: Limit resolving a frequency to policy min/max
Documentation: PM: Fix runtime_pm.rst markdown syntax
cpufreq: amd-pstate: adjust min/max limit perf
cpufreq: Remove references to 10ms min sampling rate
cpufreq: intel_pstate: Update default EPPs for Meteor Lake
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain updates from Ulf Hansson:
"Core:
- Log a message when unused PM domains gets disabled
- Scale down parent/child performance states in the reverse order
Providers:
- qcom: rpmpd: Add power domains support for MSM8974, MSM8974PRO,
PMA8084 and PM8841
- renesas: rcar-gen4-sysc: Reduce atomic delays
- renesas: rcar-sysc: Adjust the waiting time to cover the worst case
- renesas: r8a779h0-sysc: Add support for the r8a779h0 PM domains
- imx: imx8mp-blk-ctrl: Add the fdcc clock to the hdmimix domains
- imx: imx8mp-blk-ctrl: Error out if domains are missing in DT
Improve support for multiple PM domains:
- Add two helper functions to attach/detach multiple PM domains
- Convert a couple of drivers to use the new helper functions"
* tag 'pmdomain-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (22 commits)
pmdomain: renesas: rcar-gen4-sysc: Reduce atomic delays
pmdomain: renesas: Adjust the waiting time to cover the worst case
pmdomain: qcom: rpmpd: Add MSM8974PRO+PMA8084 power domains
pmdomain: qcom: rpmpd: Add MSM8974+PM8841 power domains
pmdomain: core: constify of_phandle_args in add device and subdomain
pmdomain: core: constify of_phandle_args in xlate
media: venus: Convert to dev_pm_domain_attach|detach_list() for vcodec
remoteproc: qcom_q6v5_adsp: Convert to dev_pm_domain_attach|detach_list()
remoteproc: imx_rproc: Convert to dev_pm_domain_attach|detach_list()
remoteproc: imx_dsp_rproc: Convert to dev_pm_domain_attach|detach_list()
PM: domains: Add helper functions to attach/detach multiple PM domains
pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
pmdomain: mediatek: Use devm_platform_ioremap_resource() in init_scp()
pmdomain: renesas: r8a779h0-sysc: Add r8a779h0 support
pmdomain: imx8mp-blk-ctrl: Error out if domains are missing in DT
pmdomain: ti: Add a null pointer check to the omap_prm_domain_init
pmdomain: renesas: rcar-gen4-sysc: Remove unneeded includes
pmdomain: core: Print a message when unused power domains are disabled
pmdomain: qcom: rpmpd: Keep one RPM handle for all RPMPDs
pmdomain: core: Scale down parent/child performance states in reverse order
...
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New drivers:
- Amphenol ChipCap 2
- ASPEED g6 PWM/Fan tach
- Astera Labs PT5161L retimer
- ASUS ROG RYUJIN II 360 AIO cooler
- LTC4282
- Microsoft Surface devices
- MPS MPQ8785 Synchronous Step-Down Converter
- NZXT Kraken X and Z series AIO CPU coolers
Additional chip support in existing drivers:
- Ayaneo Air Plus 7320u (oxp-sensors)
- INA260 (ina2xx)
- XPS 9315 (dell-smm)
- MSI customer ID (nct6683)
Devicetree bindings updates:
- Common schema for hardware monitoring devices
- Common schema for fans
- Update chip descriptions to use common schema
- Document regulator properties in several drivers
- Explicit bindings for infineon buck converters
Other improvements:
- Replaced rbtree with maple tree register cache in several drivers
- Added support for humidity min/max alarm and volatage fault
attributes to hwmon core
- Dropped non-functional I2C_CLASS_HWMON support for drivers w/o
detect()
- Dropped obsolete and redundant entried from MAINTAINERS
- Cleaned up axi-fan-control and coretemp drivers
- Minor fixes and improvements in several other drivers"
* tag 'hwmon-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (70 commits)
hwmon: (dell-smm) Add XPS 9315 to fan control whitelist
hwmon: (aspeed-g6-pwm-tacho): Support for ASPEED g6 PWM/Fan tach
dt-bindings: hwmon: Support Aspeed g6 PWM TACH Control
dt-bindings: hwmon: fan: Add fan binding to schema
dt-bindings: hwmon: tda38640: Add interrupt & regulator properties
hwmon: (amc6821) add of_match table
dt-bindings: hwmon: lm75: use common hwmon schema
hwmon: (sis5595) drop unused DIV_TO_REG function
dt-bindings: hwmon: reference common hwmon schema
dt-bindings: hwmon: lltc,ltc4286: use common hwmon schema
dt-bindings: hwmon: adi,adm1275: use common hwmon schema
dt-bindings: hwmon: ti,ina2xx: use common hwmon schema
dt-bindings: hwmon: add common properties
hwmon: (pmbus/ir38064) Use PMBUS_REGULATOR_ONE to declare regulator
hwmon: (pmbus/lm25066) Use PMBUS_REGULATOR_ONE to declare regulator
hwmon: (pmbus/tda38640) Use PMBUS_REGULATOR_ONE to declare regulator
regulator: dt-bindings: promote infineon buck converters to their own binding
dt-bindings: hwmon/pmbus: ti,lm25066: document regulators
dt-bindings: hwmon: nuvoton,nct6775: Add compatible value for NCT6799
MAINTAINERS: Drop redundant hwmon entries
...
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"The biggest feature is the locking overhaul. Up until now the
synchronization in the GPIO subsystem was broken. There was a single
spinlock "protecting" multiple data structures but doing it wrong (as
evidenced by several places where it would be released when a sleeping
function was called and then reacquired without checking the protected
state).
We tried to use an RW semaphore before but the main issue with GPIO is
that we have drivers implementing the interfaces in both sleeping and
non-sleeping ways as well as user-facing interfaces that can be called
both from process as well as atomic contexts. Both ends converge in
the same code paths that can use neither spinlocks nor mutexes. The
only reasonable way out is to use SRCU and go mostly lockless. To that
end: we add several SRCU structs in relevant places and use them to
assure consistency between API calls together with atomic reads and
writes of GPIO descriptor flags where it makes sense.
This code has spent several weeks in next and has received several
fixes in the first week or two after which it stabilized nicely. The
GPIO subsystem is now resilient to providers being suddenly unbound.
We managed to also remove the existing character device RW semaphore
and the obsolete global spinlock.
Other than the locking rework we have one new driver (for Chromebook
EC), much appreciated documentation improvements from Kent and the
regular driver improvements, DT-bindings updates and GPIOLIB core
tweaks.
Serialization rework:
- use SRCU to serialize access to the global GPIO device list, to
GPIO device structs themselves and to GPIO descriptors
- make the GPIO subsystem resilient to the GPIO providers being
unbound while the API calls are in progress
- don't dereference the SRCU-protected chip pointer if the
information we need can be obtained from the GPIO device structure
- move some of the information contained in struct gpio_chip to
struct gpio_device to further reduce the need to dereference the
former
- pass the GPIO device struct instead of the GPIO chip to sysfs
callback to, again, reduce the need for accessing the latter
- get GPIO descriptors from the GPIO device, not from the chip for
the same reason
- allow for mostly lockless operation of the GPIO driver API: assure
consistency with SRCU and atomic operations
- remove the global GPIO spinlock
- remove the character device RW semaphore
Core GPIOLIB:
- constify pointers in GPIO API where applicable
- unify the GPIO counting APIs for ACPI and OF
- provide a macro for iterating over all GPIOs, not only the ones
that are requested
- remove leftover typedefs
- pass the consumer device to GPIO core in
devm_fwnode_gpiod_get_index() for improved logging
- constify the GPIO bus type
- don't warn about removing GPIO chips with descriptors still held by
users as we can now handle this situation gracefully
- remove unused logging helpers
- unexport functions that are only used internally in the GPIO
subsystem
- set the device type (assign the relevant struct device_type) for
GPIO devices
New drivers:
- add the ChromeOS EC GPIO driver
Driver improvements:
- allow building gpio-vf610 with COMPILE_TEST as well as disabling it
in menuconfig (before it was always built for i.MX cofigs)
- count the number of EICs using the device properties instead of
hard-coding it in gpio-eic-sprd
- improve the device naming, extend the debugfs output and add
lockdep asserts to gpio-sim
DT bindings:
- document the 'label' property for gpio-pca9570
- convert aspeed,ast2400-gpio bindings to DT schema
- disallow unevaluated properties for gpio-mvebu
- document a new model in renesas,rcar-gpio
Documentation:
- improve the character device kerneldocs in user-space headers
- add proper documentation for the character device uAPI (both v1 and v2)
- move the sysfs and gpio-mockup docs into the "obsolete" section
- improve naming consistency for GPIO terms
- clarify the line values description for sysfs
- minor docs improvements
- improve the driver API contract for setting GPIO direction
- mark unsafe APIs as deprecated in kerneldocs and suggest
replacements
Other:
- remove an obsolete test from selftests"
* tag 'gpio-updates-for-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (79 commits)
gpio: sysfs: repair export returning -EPERM on 1st attempt
selftest: gpio: remove obsolete gpio-mockup test
gpiolib: Deduplicate cleanup for-loop in gpiochip_add_data_with_key()
dt-bindings: gpio: aspeed,ast2400-gpio: Convert to DT schema
gpio: acpi: Make acpi_gpio_count() take firmware node as a parameter
gpio: of: Make of_gpio_get_count() take firmware node as a parameter
gpiolib: Pass consumer device through to core in devm_fwnode_gpiod_get_index()
gpio: sim: use for_each_hwgpio()
gpio: provide for_each_hwgpio()
gpio: don't warn about removing GPIO chips with active users anymore
gpio: sim: delimit the fwnode name with a ":" when generating labels
gpio: sim: add lockdep asserts
gpio: Add ChromeOS EC GPIO driver
gpio: constify of_phandle_args in of_find_gpio_device_by_xlate()
gpio: fix memory leak in gpiod_request_commit()
gpio: constify opaque pointer "data" in gpio_device_find()
gpio: cdev: fix a NULL-pointer dereference with DEBUG enabled
gpio: uapi: clarify default_values being logical
gpio: sysfs: fix inverted pointer logic
gpio: don't let lockdep complain about inherently dangerous RCU usage
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"This release sees some exciting changes from David Lechner which
implements some optimisations that have been talked about for a long
time which allows client drivers to pre-prepare SPI messages for
repeated or low latency use. This lets us move work out of latency
sensitive paths and avoid repeating work for frequently performed
operations. As well as being useful in itself this will also be used
in future to allow controllers to directly trigger SPI operations (eg,
from interrupts).
Otherwise this release has mostly been focused on cleanups, plus a
couple of new devices:
- Support for pre-optimising messages
- A big set of updates from Uwe Kleine-König moving drivers to use
APIs with more modern terminology for controllers
- Major overhaul of the s3c64xx driver
- Support for Google GS101 and Samsung Exynos850"
* tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (122 commits)
spi: Introduce SPI_INVALID_CS and is_valid_cs()
spi: Fix types of the last chip select storage variables
spi: Consistently use BIT for cs_index_mask
spi: Exctract spi_dev_check_cs() helper
spi: Exctract spi_set_all_cs_unused() helper
spi: s3c64xx: switch exynos850 to new port config data
spi: s3c64xx: switch gs101 to new port config data
spi: s3c64xx: deprecate fifo_lvl_mask, rx_lvl_offset and port_id
spi: s3c64xx: get rid of the OF alias ID dependency
spi: s3c64xx: introduce s3c64xx_spi_set_port_id()
spi: s3c64xx: let the SPI core determine the bus number
spi: s3c64xx: allow FIFO depth to be determined from the compatible
spi: s3c64xx: retrieve the FIFO depth from the device tree
spi: s3c64xx: determine the fifo depth only once
spi: s3c64xx: allow full FIFO masks
spi: s3c64xx: define a magic value
spi: dt-bindings: introduce FIFO depth properties
spi: axi-spi-engine: use struct_size() macro
spi: axi-spi-engine: use __counted_by() attribute
spi: axi-spi-engine: remove p from struct spi_engine_message_state
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This has been a very quiet release, mostly cleanups, API updates and
simple device additions. I messed up slightly and there are a couple
of duplicated commits resulting from me leaving things in my inbox
which didn't seem worth removing by the time I noticed them.
- Conversion of several drivers to GPIO descriptors
- Build out the features of of the MP8859 driver
- Support for Qualcomm PM4125 and PM6150"
* tag 'regulator-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (31 commits)
regulator: lp8788-buck: fix copy and paste bug in lp8788_dvs_gpio_request()
regulator: core: make regulator_class constant
regulator: da9121: Remove unused of_gpio.h
regulator: userspace-consumer: add module device table
regulator: dt-bindings: gpio-regulator: Fix "gpios-states" and "states" array bounds
regulator: mp8859: Implement set_current_limit()
regulator: mp8859: Report slew rate
regulator: mp8859: Support status and error readback
regulator: mp8859: Support active discharge control
regulator: mp8859: Support mode operations
regulator: mp8859: Support enable control
regulator: mp8859: Validate and log device identifier information
regulator: mp8859: Specify register accessibility and enable caching
regulator: max8998: Convert to GPIO descriptors
regulator: max8997: Convert to GPIO descriptors
regulator: lp8788-buck: Fully convert to GPIO descriptors
regulator: da9055: Fully convert to GPIO descriptors
regulator: max8973: Finalize switch to GPIO descriptors
regulator: dt-bindings: qcom,usb-vbus-regulator: add support for PM4125
regulator: dt-bindings: qcom,usb-vbus-regulator: add support for PM4125
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"Just two updates this time around, a rework of max_register handling
which enables us to support devices with only one register better and
a new test which will be used to validate use of some new SPI
optimisations which will be coming in during this merge window"
* tag 'regmap-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: kunit: Add a test for ranges in combination with windows
regmap: rework ->max_register handling
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Pull MMC updates from Ulf Hansson:
"MMC core:
- Drop the use of BLK_BOUNCE_HIGH
- Fix partition switch for GP3
- Remove usage of the deprecated ida_simple API
MMC host:
- cqhci: Update bouncing email-addresses in MAINTAINERS
- davinci_mmc: Use sg_miter for PIO
- dw_mmc-hi3798cv200: Convert the DT bindings to YAML
- dw_mmc-hi3798mv200: Add driver for the new dw_mmc variant
- fsl-imx-esdhc: A couple of corrections/updates to the DT bindings
- meson-mx-sdhc: Drop use of the ->card_hw_reset() callback
- moxart-mmc: Use sg_miter for PIO
- moxart-mmc: Fix accounting for DMA transfers
- mvsdio: Use sg_miter for PIO
- mxcmmc: Use sg_miter for PIO
- omap: Use sg_miter for PIO
- renesas,sdhi: Add support for R-Car V4M variant
- sdhci-esdhc-mcf: Use sg_miter for swapping
- sdhci-of-dwcmshc: Add support for Sophgo CV1800B and SG2002 variants
- sh_mmcif: Use sg_miter for PIO
- tmio: Avoid concurrent runs of mmc_request_done()"
* tag 'mmc-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (44 commits)
mmc: core: make mmc_host_class constant
mmc: core: Fix switch on gp3 partition
mmc: tmio: comment the ERR_PTR usage in this driver
mmc: mmc_spi: Don't mention DMA direction
mmc: dw_mmc: Remove unused of_gpio.h
mmc: dw_mmc: add support for hi3798mv200
dt-bindings: mmc: hisilicon,hi3798cv200-dw-mshc: add Hi3798MV200 binding
dt-bindings: mmc: dw-mshc-hi3798cv200: convert to YAML
mmc: dw_mmc-hi3798cv200: remove MODULE_ALIAS()
mmc: core: Use a struct device* as in-param to mmc_of_parse_clk_phase()
mmc: wmt-sdmmc: remove an incorrect release_mem_region() call in the .remove function
mmc: tmio: avoid concurrent runs of mmc_request_done()
dt-bindings: mmc: fsl-imx-mmc: Document the required clocks
mmc: sh_mmcif: Advance sg_miter before reading blocks
mmc: sh_mmcif: sg_miter must not be atomic
mmc: sdhci-esdhc-mcf: Flag the sg_miter as atomic
dt-bindings: mmc: fsl-imx-esdhc: add default and 100mhz state
mmc: core: constify the struct device_type usage
mmc: sdhci-of-dwcmshc: Add support for Sophgo CV1800B and SG2002
dt-bindings: mmc: sdhci-of-dwcmhsc: Add Sophgo CV1800B and SG2002 support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm updates from Uwe Kleine-König:
"This contains the usual amount of driver and device tree changes.
Additionally there is a big rework of how pwm lowlevel drivers are
registered to prepare adding character device support.
Thanks to Dharma Balasubiramani, Dong Aisheng, Duje Mihanović, Jerome
Brunet, Raag Jadav and Rafał Miłecki for their contributions. And
sorry for those who still need some patience because I didn't manage
to empty my review queue"
* tag 'pwm/for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux: (185 commits)
pwm: imx-tpm: fix probe crash due to access registers without clock
pwm: meson: generalize 4 inputs clock on meson8 pwm type
dt-bindings: pwm: amlogic: Add a new binding for meson8 pwm types
dt-bindings: pwm: amlogic: fix s4 bindings
pwm: dwc: simplify error handling
pwm: dwc: Add 16 channel support for Intel Elkhart Lake
pwm: dwc: drop redundant error check
staging: greybus: pwm: Make use of devm_pwmchip_alloc() function
staging: greybus: pwm: Rework how the number of PWM lines is determined
staging: greybus: pwm: Drop unused gb_connection_set_data()
staging: greybus: pwm: Rely on pwm framework to pass a valid hwpwm
staging: greybus: pwm: Make use of pwmchip_parent() accessor
staging: greybus: pwm: Change prototype of helpers to prepare further changes
leds: qcom-lpg: Make use of devm_pwmchip_alloc() function
drm/bridge: ti-sn65dsi86: Make use of devm_pwmchip_alloc() function
drm/bridge: ti-sn65dsi86: Make use of pwmchip_parent() accessor
gpio: mvebu: Make use of devm_pwmchip_alloc() function
pwm: xilinx: Make use of devm_pwmchip_alloc() function
pwm: xilinx: Prepare removing pwm_chip from driver data
pwm: vt8500: Make use of devm_pwmchip_alloc() function
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform firmware updates from Tzung-Bi Shih:
- Allow userspace to automatically load coreboot modules by adding
modaliases and sending uevents
- Make bus_type const
* tag 'tag-chrome-platform-firmware-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
firmware: coreboot: Replace tag with id table in driver struct
firmware: coreboot: Generate aliases for coreboot modules
firmware: coreboot: Generate modalias uevent for devices
firmware: coreboot: make coreboot_bus_type const
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper VDO target from Mike Snitzer:
"Introduce the DM vdo target which provides block-level deduplication,
compression, and thin provisioning. Please see:
Documentation/admin-guide/device-mapper/vdo.rst
Documentation/admin-guide/device-mapper/vdo-design.rst
The DM vdo target handles its concurrency by pinning an IO, and
subsequent stages of handling that IO, to a particular VDO thread.
This aspect of VDO is "unique" but its overall implementation is very
tightly coupled to its mostly lockless threading model. As such, VDO
is not easily changed to use more traditional finer-grained locking
and Linux workqueues. Please see the "Zones and Threading" section of
vdo-design.rst
The DM vdo target has been used in production for many years but has
seen significant changes over the past ~6 years to prepare it for
upstream inclusion. The codebase is still large but it is isolated to
drivers/md/dm-vdo/ and has been made considerably more approachable
and maintainable.
Matt Sakai has been added to the MAINTAINERS file to reflect that he
will send VDO changes upstream through the DM subsystem maintainers"
* tag 'for-6.9/dm-vdo' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (142 commits)
dm vdo: document minimum metadata size requirements
dm vdo: remove meaningless version number constant
dm vdo: remove vdo_perform_once
dm vdo block-map: Remove stray semicolon
dm vdo string-utils: change from uds_ to vdo_ namespace
dm vdo logger: change from uds_ to vdo_ namespace
dm vdo funnel-queue: change from uds_ to vdo_ namespace
dm vdo indexer: fix use after free
dm vdo logger: remove log level to string conversion code
dm vdo: document log_level parameter
dm vdo: add 'log_level' module parameter
dm vdo: remove all sysfs interfaces
dm vdo target: eliminate inappropriate uses of UDS_SUCCESS
dm vdo indexer: update ASSERT and ASSERT_LOG_ONLY usage
dm vdo encodings: update some stale comments
dm vdo permassert: audit all of ASSERT to test for VDO_SUCCESS
dm-vdo funnel-workqueue: return VDO_SUCCESS from make_simple_work_queue
dm vdo thread-utils: return VDO_SUCCESS on vdo_create_thread success
dm vdo int-map: return VDO_SUCCESS on success
dm vdo: check for VDO_SUCCESS return value from memory-alloc functions
...
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When running as PVH or HVM Linux will use holes in the memory map as scratch
space to map grants, foreign domain pages and possibly miscellaneous other
stuff. However the usage of such memory map holes for Xen purposes can be
problematic. The request of holesby Xen happen quite early in the kernel boot
process (grant table setup already uses scratch map space), and it's possible
that by then not all devices have reclaimed their MMIO space. It's not
unlikely for chunks of Xen scratch map space to end up using PCI bridge MMIO
window memory, which (as expected) causes quite a lot of issues in the system.
At least for PVH dom0 we have the possibility of using regions marked as
UNUSABLE in the e820 memory map. Either if the region is UNUSABLE in the
native memory map, or it has been converted into UNUSABLE in order to hide RAM
regions from dom0, the second stage translation page-tables can populate those
areas without issues.
PV already has this kind of logic, where the balloon driver is inflated at
boot. Re-use the current logic in order to also inflate it when running as
PVH. onvert UNUSABLE regions up to the ratio specified in EXTRA_MEM_RATIO to
RAM, while reserving them using xen_add_extra_mem() (which is also moved so
it's no longer tied to CONFIG_PV).
[jgross: fixed build for CONFIG_PVH without CONFIG_XEN_PVH]
Signed-off-by: Roger Pau Monné <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper BH workqueue conversion from Mike Snitzer:
"Convert the DM verity and crypt targets from (ab)using tasklets to
using BH workqueues.
These changes were coordinated with Tejun and are based ontop of DM's
6.9 changes and Tejun's 6.9 workqueue tree"
* tag 'for-6.9/dm-bh-wq' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm-verity: Convert from tasklet to BH workqueue
dm-crypt: Convert from tasklet to BH workqueue
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Fix DM core's IO submission (which include dm-io and dm-bufio) such
that a bio's IO priority is propagated. Work focused on enabling both
DM crypt and verity targets to retain the appropriate IO priority
- Fix DM raid reshape logic to not allow an empty flush bio to be
requeued due to false concern about the bio, which doesn't have a
data payload, accessing beyond the end of the device
- Fix DM core's internal resume so that it properly calls both presume
and resume methods, which fixes the potential for a postsuspend and
resume imbalance
- Update DM verity target to set DM_TARGET_SINGLETON flag because it
doesn't make sense to have a DM table with a mix of targets that
include dm-verity
- Small cleanups in DM crypt, thin, and integrity targets
- Fix references to dm-devel mailing list to use latest list address
* tag 'for-6.9/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: call the resume method on internal suspend
dm raid: fix false positive for requeue needed during reshape
dm-integrity: set max_integrity_segments in dm_integrity_io_hints
dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list
dm ioctl: update DM_DRIVER_EMAIL to new dm-devel mailing list
dm verity: set DM_TARGET_SINGLETON feature flag
dm crypt: Fix IO priority lost when queuing write bios
dm verity: Fix IO priority lost when reading FEC and hash
dm bufio: Support IO priority
dm io: Support IO priority
dm crypt: remove redundant state settings after waking up
dm thin: add braces around conditional code that spans lines
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata updates from Niklas Cassel:
- Do not enable LPM for external ports (hotplug-capable ports or eSATA
ports), as the HBA will not be able to detect hot plug removal events
when LPM is enabled (me)
- Drop the board type board_ahci_low_power. Now when we make sure that
we won't enable LPM for external ports, we can always set the LPM
policy to CONFIG_SATA_MOBILE_LPM_POLICY for internal ports. There is
thus no longer any need for the board type board_ahci_low_power, so
it can be removed. (As before, LPM features not supported by the HBA
and/or the device will not be enabled, regardless of the LPM policy
Kconfig) (Mario Limonciello)
Note that the default CONFIG_SATA_MOBILE_LPM_POLICY value is still 0
(which will not try to enable any LPM features), however, most Linux
distributions override this and set it to 3 (Medium power with DIPM).
We intend to change the default to 3 in the coming cycles, but we
will wait a cycle or two.
- Add board type board_ahci_pcs_quirk and make all legacy Intel
platforms use it. The Intel PCS quirk was being applied to basically
all Intel platforms, which caused some issues (the device failing to
come back after a reset), when being applied to newer Intel platforms
where it shouldn't have been applied.
New platforms can be added using board type board_ahci, which will
not have the quirk applied (me)
- Rename board_ahci_nosntf to board_ahci_pcs_quirk_no_sntf to more
clearly highlight that it applies two different quirks (me)
- Modify the ahci_broken_devslp() quirk to be implemented like all the
other quirks (i.e. define a board type for the quirk) (me)
- Drop unused board_ahci_noncq board type (me)
- Rename board_ahci_nomsi to board_ahci_no_msi to match the other board
types (me)
- Make pata_parport_bus_type const (Ricardo B. Marliere)
- Remove at91 compact flash device tree binding. (The binding is not
used by any driver.) (from Hari Prasath Gujulan Elango)
- Convert MediaTek device tree binding to json-schema (Rafał Miłecki)
- At boot, print the number of implemented ports, instead of printing
the maximum number of ports supported by the HBA silicon (me)
* tag 'ata-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ahci: print the number of implemented ports
dt-bindings: ata: convert MediaTek controller to the json-schema
ahci: rename board_ahci_nomsi
ahci: drop unused board_ahci_noncq
ahci: clean up ahci_broken_devslp quirk
ahci: rename board_ahci_nosntf
ahci: clean up intel_pcs_quirk
ata: ahci: Drop low power policy board type
ata: ahci: do not enable LPM on external ports
ata: ahci: drop hpriv param from ahci_update_initial_lpm_policy()
ata: ahci: a hotplug capable port is an external port
ata: ahci: move marking of external port earlier
dt-bindings: ata: atmel: remove at91 compact flash documentation
ata: pata_parport: make pata_parport_bus_type const
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git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- fix leaked pages on dma_set_decrypted() failure (Rick Edgecombe)
- add a new swiotlb debugfs file (ZhangPeng)
* tag 'dma-mapping-6.9-2024-03-11' of git://git.infradead.org/users/hch/dma-mapping:
dma-direct: Leak pages on dma_set_decrypted() failure
swiotlb: add debugfs to track swiotlb transient pool usage
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A previous bugfix added a call to kcalloc(), which starting in gcc-14
causes a harmless warning about the argument order:
drivers/soc/fsl/dpio/dpio-service.c: In function 'dpaa2_io_service_enqueue_multiple_desc_fq':
drivers/soc/fsl/dpio/dpio-service.c:526:29: error: 'kcalloc' sizes specified with 'sizeof' in the earlier argument and not in the later argument [-Werror=calloc-transposed-args]
526 | ed = kcalloc(sizeof(struct qbman_eq_desc), 32, GFP_KERNEL);
| ^~~~~~
drivers/soc/fsl/dpio/dpio-service.c:526:29: note: earlier argument should specify number of elements, later size of each element
Since the two are only multiplied, the order does not change the
behavior, so just fix it now to shut up the compiler warning.
Dmity independently came up with the same fix.
Fixes: 5c4a5999b245 ("soc: fsl: dpio: avoid stack usage warning")
Reported-by: Dmitry Antipov <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"Core changes:
- Constification of bus_type pointer
- Preparations for user-space page-fault delivery
- Use a named kmem_cache for IOVA magazines
Intel VT-d changes from Lu Baolu:
- Add RBTree to track iommu probed devices
- Add Intel IOMMU debugfs document
- Cleanup and refactoring
ARM-SMMU Updates from Will Deacon:
- Device-tree binding updates for a bunch of Qualcomm SoCs
- SMMUv2: Support for Qualcomm X1E80100 MDSS
- SMMUv3: Significant rework of the driver's STE manipulation and
domain handling code. This is the initial part of a larger scale
rework aiming to improve the driver's implementation of the
IOMMU-API in preparation for hooking up IOMMUFD support.
AMD-Vi Updates:
- Refactor GCR3 table support for SVA
- Cleanups
Some smaller cleanups and fixes"
* tag 'iommu-updates-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (88 commits)
iommu: Fix compilation without CONFIG_IOMMU_INTEL
iommu/amd: Fix sleeping in atomic context
iommu/dma: Document min_align_mask assumption
iommu/vt-d: Remove scalabe mode in domain_context_clear_one()
iommu/vt-d: Remove scalable mode context entry setup from attach_dev
iommu/vt-d: Setup scalable mode context entry in probe path
iommu/vt-d: Fix NULL domain on device release
iommu: Add static iommu_ops->release_domain
iommu/vt-d: Improve ITE fault handling if target device isn't present
iommu/vt-d: Don't issue ATS Invalidation request when device is disconnected
PCI: Make pci_dev_is_disconnected() helper public for other drivers
iommu/vt-d: Use device rbtree in iopf reporting path
iommu/vt-d: Use rbtree to track iommu probed devices
iommu/vt-d: Merge intel_svm_bind_mm() into its caller
iommu/vt-d: Remove initialization for dynamically heap-allocated rcu_head
iommu/vt-d: Remove treatment for revoking PASIDs with pending page faults
iommu/vt-d: Add the document for Intel IOMMU debugfs
iommu/vt-d: Use kcalloc() instead of kzalloc()
iommu/vt-d: Remove INTEL_IOMMU_BROKEN_GFX_WA
iommu: re-use local fwnode variable in iommu_ops_from_fwnode()
...
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
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If a usb audio device sets more bits than the amount of channels
it could write outside of the map array.
Signed-off-by: Johan Carlsson <[email protected]>
Fixes: 04324ccc75f9 ("ALSA: usb-audio: add channel map support")
Message-ID: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
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This reverts commit cb1a393c40eee2f1692c995ea0cc6e45bfccde4d.
Since the arm64 WXN patch has been reverted, remove this hook as it
would not have any users.
Signed-off-by: Catalin Marinas <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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This reverts commit 50e3ed0f93f4f62ed2aa83de5db6cb84ecdd5707.
The SCTLR_EL1.WXN control forces execute-never when a page has write
permissions. While the idea of hardening such write/exec combinations is
good, with permissions indirection enabled (FEAT_PIE) this control
becomes RES0. FEAT_PIE introduces a slightly different form of WXN which
only has an effect when the base permission is RWX and the write is
toggled by the permission overlay (FEAT_POE, not yet supported by the
arm64 kernel). Revert the patch for now.
Signed-off-by: Catalin Marinas <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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When bringing a CPU online, some of the PMC and LBR related registers
are reset. The same is done when a CPU is taken offline although that
is unnecessary. This currently happens in the "cpu_dead" callback which
is also incorrect as the callback runs on a control CPU instead of the
one that is being taken offline. This also affects hibernation and
suspend to RAM on some platforms as reported in the link below.
Fixes: 21d59e3e2c40 ("perf/x86/amd/core: Detect PerfMonV2 support")
Reported-by: Mario Limonciello <[email protected]>
Signed-off-by: Sandipan Das <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/550a026764342cf7e5812680e3e2b91fe662b5ac.1706526029.git.sandipan.das@amd.com
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The Revision Guide for AMD Family 19h Model 10-1Fh processors declares
Erratum 1452 which states that non-branch entries may erroneously be
recorded in the Last Branch Record (LBR) stack with the valid and
spec bits set.
Such entries can be recognized by inspecting bit 61 of the corresponding
LastBranchStackToIp register. This bit is currently reserved but if found
to be set, the associated branch entry should be discarded.
Signed-off-by: Sandipan Das <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://bugzilla.kernel.org/attachment.cgi?id=305518
Link: https://lore.kernel.org/r/3ad2aa305f7396d41a40e3f054f740d464b16b7f.1706526029.git.sandipan.das@amd.com
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Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the class3270 structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Cc: Greg Kroah-Hartman <[email protected]>
Suggested-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: "Ricardo B. Marliere" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Carstens <[email protected]>
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Instead of checking if rc is 0, check whether it is non-zero and return
early if so. The call to class_create() can fail, so add a check to it and
move it out of the mutex region.
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: "Ricardo B. Marliere" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Carstens <[email protected]>
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Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the tape_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Cc: Greg Kroah-Hartman <[email protected]>
Suggested-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: "Ricardo B. Marliere" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Carstens <[email protected]>
|