Replace the `HrTimerMode` enum with a trait-based approach that uses
zero-sized types to represent each mode of operation. Each mode now
implements the `HrTimerMode` trait.
This refactoring is a preparation for replacing raw `Ktime` in HrTimer
with the `Instant` and `Delta` types, and for making `HrTimer` generic
over a `ClockSource`.
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Link: https://lore.kernel.org/r/20250610132823.3457263-3-fujita.tomonori@gmail.com
Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
Fix the boost gain calculation error in rt721_sdca_set_gain_get.
This patch is specific for "FU33 Boost Volume".
Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://patch.msgid.link/1b18fcde41c64d6fa85451d523c0434a@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add a simple stress test for lib/ratelimit.c
To run on x86:
./tools/testing/kunit/kunit.py run --arch x86_64 --kconfig_add CONFIG_RATELIMIT_KUNIT_TEST=y --kconfig_add CONFIG_SMP=y --qemu_args "-smp 4" lib_ratelimit
On a 16-CPU system, the "4" in "-smp 4" can be varied between 1 and 8.
Larger numbers have higher probabilities of introducing delays that
break the smoke test. In the extreme case, increasing the number to
larger than the number of CPUs in the underlying system is an excellent
way to get a test failure.
Link: https://lore.kernel.org/all/fbe93a52-365e-47fe-93a4-44a44547d601@paulmck-laptop/
Link: https://lore.kernel.org/all/20250423115409.3425-1-spasswolf@web.de/
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Kuniyuki Iwashima <kuniyu@amazon.com>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Jon Pan-Doh <pandoh@google.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Karolina Stolarek <karolina.stolarek@oracle.com>
The selftest fails most of the times when running in qemu with
a kernel configured with CONFIG_HZ = 250:
> test_ratelimit_smoke: 1 callbacks suppressed
> # test_ratelimit_smoke: ASSERTION FAILED at lib/tests/test_ratelimit.c:28
> Expected ___ratelimit(&testrl, "test_ratelimit_smoke") == (false), but
> ___ratelimit(&testrl, "test_ratelimit_smoke") == 1 (0x1)
> (false) == 0 (0x0)
Try to make the test slightly more reliable by calling the problematic
ratelimit in the middle of the interval.
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Add a simple single-threaded smoke test for lib/ratelimit.c
To run on x86:
make ARCH=x86_64 mrproper
./tools/testing/kunit/kunit.py run --arch x86_64 --kconfig_add CONFIG_RATELIMIT_KUNIT_TEST=y --kconfig_add CONFIG_SMP=y lib_ratelimit
This will fail on old ___ratelimit(), and subsequent patches provide
the fixes that are required.
[ paulmck: Apply timeout and kunit feedback from Petr Mladek. ]
Link: https://lore.kernel.org/all/fbe93a52-365e-47fe-93a4-44a44547d601@paulmck-laptop/
Link: https://lore.kernel.org/all/20250423115409.3425-1-spasswolf@web.de/
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Kuniyuki Iwashima <kuniyu@amazon.com>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Jon Pan-Doh <pandoh@google.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Karolina Stolarek <karolina.stolarek@oracle.com>
Merge the mmc fixes for v6.16-rc[n] into the next branch, to allow them to
get tested together with the new mmc changes that are targeted for v6.17.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
It has turned out the trying to strictly conform to the SDHCI specification
is causing problems. Let's revert and start over.
This reverts commit fb3bbc46c9.
Cc: Erick Shepherd <erick.shepherd@ni.com>
Cc: stable@vger.kernel.org
Fixes: fb3bbc46c9 ("mmc: sdhci: Disable SD card clock before changing parameters")
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Reported-by: Jonathan Liu <net147@gmail.com>
Reported-by: Salvatore Bonaccorso <carnil@debian.org>
Closes: https://bugs.debian.org/1108065
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250624110932.176925-1-ulf.hansson@linaro.org
Add support for dedicated DMA interrupt vectors for each SPI hardware
instance in the pci1xxxx driver. This improves scalability and interrupt
handling for systems using multiple SPI instances with DMA.
Introduce a constant `NUM_VEC_PER_INST` to define the number of IRQ
vectors per instance (main, DMA write, DMA read). Update the
`pci1xxxx_spi_internal` structure to use an IRQ array.
Refactor IRQ allocation and DMA initialization logic:
- Assign separate IRQ vectors for DMA read and write interrupts.
- Split the original DMA ISR into two handlers:
`pci1xxxx_spi_isr_dma_rd` and `pci1xxxx_spi_isr_dma_wr`.
- Configure IMWR registers per instance using cached MSI data.
- Move DMA register configuration into a new helper function,
`pci1xxxx_spi_dma_config()`.
Invoke the DMA initialization after all instances are configured to
ensure correct IRQ vector mapping.
Signed-off-by: Thangaraj Samynathan <thangaraj.s@microchip.com>
Link: https://patch.msgid.link/20250624033028.74389-1-thangaraj.s@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
After a recent restructuring of the ITS mitigation, RSB stuffing can no longer
be enabled in eIBRS+Retpoline mode. Before ITS, retbleed mitigation only
allowed stuffing when eIBRS was not enabled. This was perfectly fine since
eIBRS mitigates retbleed.
However, RSB stuffing mitigation for ITS is still needed with eIBRS. The
restructuring solely relies on retbleed to deploy stuffing, and does not allow
it when eIBRS is enabled. This behavior is different from what was before the
restructuring. Fix it by allowing stuffing in eIBRS+retpoline mode also.
Fixes: 61ab72c2c6 ("x86/bugs: Restructure ITS mitigation")
Closes: https://lore.kernel.org/lkml/20250519235101.2vm6sc5txyoykb2r@desk/
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250611-eibrs-fix-v4-7-5ff86cac6c61@linux.intel.com
The symbol names in the .modinfo section are never used and already
randomized by the __UNIQUE_ID() macro.
Therefore, the second parameter of __MODULE_INFO() is meaningless
and can be removed to simplify the code.
With this change, the symbol names in the .modinfo section will be
prefixed with __UNIQUE_ID_modinfo, making it clearer that they
originate from MODULE_INFO().
[Before]
$ objcopy -j .modinfo vmlinux.o modinfo.o
$ nm -n modinfo.o | head -n10
0000000000000000 r __UNIQUE_ID_license560
0000000000000011 r __UNIQUE_ID_file559
0000000000000030 r __UNIQUE_ID_description558
0000000000000074 r __UNIQUE_ID_license580
000000000000008e r __UNIQUE_ID_file579
00000000000000bd r __UNIQUE_ID_description578
00000000000000e6 r __UNIQUE_ID_license581
00000000000000ff r __UNIQUE_ID_file580
0000000000000134 r __UNIQUE_ID_description579
0000000000000179 r __UNIQUE_ID_uncore_no_discover578
[After]
$ objcopy -j .modinfo vmlinux.o modinfo.o
$ nm -n modinfo.o | head -n10
0000000000000000 r __UNIQUE_ID_modinfo560
0000000000000011 r __UNIQUE_ID_modinfo559
0000000000000030 r __UNIQUE_ID_modinfo558
0000000000000074 r __UNIQUE_ID_modinfo580
000000000000008e r __UNIQUE_ID_modinfo579
00000000000000bd r __UNIQUE_ID_modinfo578
00000000000000e6 r __UNIQUE_ID_modinfo581
00000000000000ff r __UNIQUE_ID_modinfo580
0000000000000134 r __UNIQUE_ID_modinfo579
0000000000000179 r __UNIQUE_ID_modinfo578
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Fix the following:
In kernel/gen_kheaders.sh line 48:
-I $XZ -cf $tarfile -C "${tmpdir}/" . > /dev/null
^-^ SC2086 (info): Double quote to prevent globbing and word splitting.
^------^ SC2086 (info): Double quote to prevent globbing and word splitting.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This problem is similar to commit 7f8256ae0e ("initramfs: Encode
dependency on KBUILD_BUILD_TIMESTAMP"): kernel/gen_kheaders.sh has an
internal dependency on KBUILD_BUILD_TIMESTAMP that is not exposed to
make, so changing KBUILD_BUILD_TIMESTAMP will not trigger a rebuild
of the archive.
Move $(KBUILD_BUILD_TIMESTAMP) to the Makefile so that is is recorded
in the *.cmd file.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
When a header file is changed, kernel/gen_kheaders.sh may fail to update
kernel/kheaders_data.tar.xz.
[steps to reproduce]
[1] Build kernel/kheaders_data.tar.xz
$ make -j$(nproc) kernel/kheaders.o
DESCEND objtool
INSTALL libsubcmd_headers
CALL scripts/checksyscalls.sh
CHK kernel/kheaders_data.tar.xz
GEN kernel/kheaders_data.tar.xz
CC kernel/kheaders.o
[2] Modify a header without changing the file size
$ sed -i s/0xdeadbeef/0xfeedbeef/ include/linux/elfnote.h
[3] Rebuild kernel/kheaders_data.tar.xz
$ make -j$(nproc) kernel/kheaders.o
DESCEND objtool
INSTALL libsubcmd_headers
CALL scripts/checksyscalls.sh
CHK kernel/kheaders_data.tar.xz
kernel/kheaders_data.tar.xz is not updated if steps [1] - [3] are run
within the same minute.
The headers_md5 variable stores the MD5 hash of the 'ls -l' output
for all header files. This hash value is used to determine whether
kheaders_data.tar.xz needs to be rebuilt. However, 'ls -l' prints the
modification times with minute-level granularity. If a file is modified
within the same minute and its size remains the same, the MD5 hash does
not change.
To reliably detect file modifications, this commit rewrites
kernel/gen_kheaders.sh to output header dependencies to
kernel/.kheaders_data.tar.xz.cmd. Then, Make compares the timestamps
and reruns kernel/gen_kheaders.sh when necessary. This is the standard
mechanism used by Make and Kbuild.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
In case a menu has comment without letters/numbers (eg. characters
matching the regexp '^[^[:alpha:][:digit:]]+$', for example - or *),
hitting space will cycle through those comments, rather than
selecting/deselecting the currently-highlighted option.
This is the behaviour of hitting any letter/digit: jump to the next
option which prompt starts with that letter. The only letters that
do not behave as such are 'y' 'm' and 'n'. Prompts that start with
one of those three letters are instead matched on the first letter
that is not 'y', 'm' or 'n'.
Fix that by treating 'space' as we treat y/m/n, ie. as an action key,
not as shortcut to jump to prompt.
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Cherniaev Andrei <dungeonlords789@naver.com>
[masahiro: took from Buildroot, adjusted the commit subject]
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Rename as we're going to expand the function in the next step. The path
just serves as the anchor tying the decoding to the filesystem.
Link: https://lore.kernel.org/20250624-work-pidfs-fhandle-v2-3-d02a04858fe3@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
In follow-up patches we need access to @file_handle->handle_type
before we start caring about get_path_from_fd().
Link: https://lore.kernel.org/20250624-work-pidfs-fhandle-v2-2-d02a04858fe3@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Currently FILEID_IS_DIR is raised in fh_flags which is wrong.
Raise it in handle->handle_type were it's supposed to be.
Link: https://lore.kernel.org/20250624-work-pidfs-fhandle-v2-1-d02a04858fe3@kernel.org
Fixes: c374196b2b ("fs: name_to_handle_at() support for "explicit connectable" file handles")
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Merge the mmc fixes for v6.16-rc[n] into the next branch, to allow them to
get tested together with the new mmc changes that are targeted for v6.17.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Clang warns (or errors with CONFIG_WERROR=y):
drivers/mmc/host/rtsx_usb_sdmmc.c:1042:2: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
1042 | case MMC_POWER_UNDEFINED:
| ^
drivers/mmc/host/rtsx_usb_sdmmc.c:1042:2: note: insert 'break;' to avoid fall-through
1042 | case MMC_POWER_UNDEFINED:
| ^
| break;
Clang is a little more pedantic than GCC, which does not warn when
falling through to a case that is just break or return. Clang's version
is more in line with the kernel's own stance in deprecated.rst, which
states that all switch/case blocks must end in either break,
fallthrough, continue, goto, or return. Add the missing break to silence
the warning.
Fixes: 2c3809bd6f65 ("mmc: rtsx_usb_sdmmc: Add 74 clocks in poweron flow")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250620-mmc-rtsx-usb-sdmmc-fix-clang-implicit-fallthrough-v1-1-4031d11159c0@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Replace direct ternary condition check with existing helper function
str_plural() to improve code readability and maintain consistency.
Signed-off-by: Li Dong <lidong@vivo.com>
Link: https://lore.kernel.org/r/20250618115954.10260-1-lidong@vivo.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
To conform with SD spec definition, that the host must provide at least 74
clocks before issuing first command, let's add these clock cycles at
MMC_POWER_UP.
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20250616064956.1846258-1-ricky_wu@realtek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
It's only at MMC_POWER_OFF and at MMC_POWER_UP when some operations must be
carried out in sd_set_power_mode(). The code is a bit obfuscated in this
regards. Let's convert it into a switch-case-clause to make this clear.
Reviewed-by: Avri Altman <avri.altman@sandisk.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20250610111633.504366-5-ulf.hansson@linaro.org
The sdmmc_set_ios() is the only caller of sd_set_power_mode() and it
ignores the return code. Let's therefore convert sd_set_power_mode() into a
void function instead.
Reviewed-by: Avri Altman <avri.altman@sandisk.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20250610111633.504366-4-ulf.hansson@linaro.org
It should be useful to know when we fail to power-on/off a card. Let's
therefore print debug-messages when this happens.
Reviewed-by: Avri Altman <avri.altman@sandisk.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20250610111633.504366-3-ulf.hansson@linaro.org
In the error path of sd_set_power_mode() we don't update host->power_mode,
which could lead to an imbalance of the runtime PM usage count. Fix this by
always updating host->power_mode.
Reviewed-by: Avri Altman <avri.altman@sandisk.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20250610111633.504366-2-ulf.hansson@linaro.org
This host controller is possible to change incorrect tap if an SDIO
card is used because DAT1 is used for interrupt signal on SDIO standard
but the controller doesn't take care of it. So, in the worst case,
this behavior causes a CRC error.
To resolve the issue, this driver uses manual correction mode instead
of auto correction if an SDIO card is used. Also, even if DAT1 is
mismatched on an SDIO card, this driver will not change the TAP.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250610072545.2001435-3-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Renesas SDHI controller requires vender specific handling when
an SDIO irq occurs. So, add .sdio_irq() to the tmio core.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250610072545.2001435-2-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Change ref to mmc-controller-common.yaml from mmc-controller.yaml because
imx23/imx28 use dual mode controller (spi and mmc). So default dts node
name use spi instead of mmc. The legacy reason, it use difference
compatible string to distringuish work mode (spi / mmc).
Fix below CHECK_DTB warnings:
arch/arm/boot/dts/nxp/mxs/imx23-olinuxino.dtb: spi@80010000 (fsl,imx23-mmc): $nodename:0: 'spi@80010000' does not match '^mmc(@.*)?$'
Additional add clocks property.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20250603152245.1068740-1-Frank.Li@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Since the devm_mmc_alloc_host() helper is already in use,
sdhci_pltfm_free() is no longer needed.
Cc: Orson Zhai <orsonzhai@gmail.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Chunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/88a24d5f60bc916712cca813e24ae49b7e691eb2.1749127796.git.zhoubinbin@loongson.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Since the devm_mmc_alloc_host() helper is already in use,
sdhci_pltfm_free() is no longer needed.
Cc: Steen Hegelund <Steen.Hegelund@microchip.com>
Cc: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Acked-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://lore.kernel.org/r/67b5e9076056da66d9fc8951fafd4f48ddd3ca25.1749127796.git.zhoubinbin@loongson.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
