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2022-09-29spi: spi-gxp: Use devm_platform_ioremap_resource()Yang Yingliang
Use the devm_platform_ioremap_resource() helper instead of calling platform_get_resource() and devm_ioremap_resource() separately. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220928145256.1879256-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-28spi: s3c64xx: Fix large transfers with DMAVincent Whitchurch
The COUNT_VALUE in the PACKET_CNT register is 16-bit so the maximum value is 65535. Asking the driver to transfer a larger size currently leads to the DMA transfer timing out. Implement ->max_transfer_size() and have the core split the transfer as needed. Fixes: 230d42d422e7 ("spi: Add s3c64xx SPI Controller driver") Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Link: https://lore.kernel.org/r/20220927112117.77599-5-vincent.whitchurch@axis.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-28spi: Split transfers larger than max sizeVincent Whitchurch
A couple of drivers call spi_split_transfers_maxsize() from their ->prepare_message() callbacks to split transfers which are too big for them to handle. Add support in the core to do this based on ->max_transfer_size() to avoid code duplication. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Link: https://lore.kernel.org/r/20220927112117.77599-4-vincent.whitchurch@axis.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-28spi: Fix cache corruption due to DMA/PIO overlapVincent Whitchurch
The SPI core DMA mapping support performs cache management once for the entire message and not between transfers, and this leads to cache corruption if a message has two or more RX transfers with both transfers targeting the same cache line, and the controller driver decides to handle one using DMA and the other using PIO (for example, because one is much larger than the other). Fix it by syncing before/after the actual transfers. This also means that we can skip the sync during the map/unmap of the message. Fixes: 99adef310f68 ("spi: Provide core support for DMA mapping transfers") Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Link: https://lore.kernel.org/r/20220927112117.77599-3-vincent.whitchurch@axis.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-28spi: Save current RX and TX DMA devicesVincent Whitchurch
Save the current RX and TX DMA devices to avoid having to duplicate the logic to pick them, since we'll need access to them in some more functions to fix a bug in the cache handling. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Link: https://lore.kernel.org/r/20220927112117.77599-2-vincent.whitchurch@axis.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-27spi: mt65xx: Add dma max segment size declarationzhichao.liu
Add spi dma max segment size declaration according to spi hardware capability, instead of 64KB by system default setting, to improve bus bandwidth for mass data transmission. Signed-off-by: zhichao.liu <zhichao.liu@mediatek.com> Link: https://lore.kernel.org/r/20220927083248.25404-1-zhichao.liu@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-27spi: migrate mt7621 text bindings to YAMLSergio Paracuellos
SoC MT7621 SPI bindings used text format, so migrate them to YAML. There are some additions to the binding that were not in the original file. This binding is used in MT7621 and MT7628a Ralink SoCs. To properly match both dts nodes in tree we need to add to the schema 'clocks', 'clock-names' and 'reset-names'. Both 'clock-names' and 'reset-names' use 'spi' as string so maintain that as const in the schema. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20220927031929.807070-1-sergio.paracuellos@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-27spi: renesas,sh-msiof: Add r8a779g0 supportGeert Uytterhoeven
Document support for the Clock-Synchronized Serial Interface with FIFO (MSIOF) in the Renesas R-Car V4H (R8A779G0) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/a840ca8487cfd612fae2b20c98e93ae7c7f50ef4.1664204638.git.geert+renesas@glider.be Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-27Fix PM disable depth imbalance in probeMark Brown
Merge series from Zhang Qilong <zhangqilong3@huawei.com>: The pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed when error returns to keep it balanced. This series of patches fixed it in spi probe.
2022-09-26spi: spi-fsl-qspi: Use devm_platform_ioremap_resource_byname()Yang Yingliang
Use the devm_platform_ioremap_resource_byname() helper instead of calling platform_get_resource_byname() and devm_ioremap_resource() separately. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220924131854.964923-3-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-26spi: spi-fsl-lpspi: Use devm_platform_get_and_ioremap_resource()Yang Yingliang
Use the devm_platform_get_and_ioremap_resource() helper instead of calling platform_get_resource() and devm_ioremap_resource() separately. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220924131854.964923-2-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-26spi: spi-fsl-dspi: Use devm_platform_get_and_ioremap_resource()Yang Yingliang
Use the devm_platform_get_and_ioremap_resource() helper instead of calling platform_get_resource() and devm_ioremap_resource() separately. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220924131854.964923-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-26spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probeZhang Qilong
The pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed on the error handling path to keep it balanced according to context. Fixes:db91841b58f9a ("spi/omap100k: Convert to runtime PM") Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20220924121310.78331-4-zhangqilong3@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-26spi: dw: Fix PM disable depth imbalance in dw_spi_bt1_probeZhang Qilong
The pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed on the error handling path to keep it balanced according to context. Fixes:abf00907538e2 ("spi: dw: Add Baikal-T1 SPI Controller glue driver") Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20220924121310.78331-3-zhangqilong3@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-26spi: cadence-quadspi: Fix PM disable depth imbalance in cqspi_probeZhang Qilong
The pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed on the error handling path to keep it balanced according to context. Fixes:73d5fe0462702 ("spi: cadence-quadspi: Remove spi_master_put() in probe failure path") Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20220924121310.78331-2-zhangqilong3@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-23spi: s3c24xx: Switch to use devm_spi_alloc_master()Yang Yingliang
Switch to use devm_spi_alloc_master() to simpify error path. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220920142216.3002291-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-23spi: xilinx: Switch to use devm_spi_alloc_master()Yang Yingliang
Switch to use devm_spi_alloc_master() to simpify error path. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Lukas Wunner <lukas@wunner.de> Link: https://lore.kernel.org/r/20220920114615.2681751-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-23spi: img-spfi: using pm_runtime_resume_and_get instead of pm_runtime_get_syncZhang Qilong
Using the newest pm_runtime_resume_and_get is more appropriate for simplifing code here. Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20220922150232.115843-1-zhangqilong3@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-23spi: aspeed: Remove redundant dev_err callShang XiaoJing
devm_ioremap_resource() prints error message in itself. Remove the dev_err call to avoid redundant error message. Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Link: https://lore.kernel.org/r/20220923101632.19170-1-shangxiaojing@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-23spi: spi-mpc52xx: switch to using gpiod APIDmitry Torokhov
This switches the driver to use gpiod API instead of legacy gpio API, which will brings us close to removing of_get_gpio() and other OF-specific old APIs. No functional change intended beyond some differences in error messages. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/Yy07WbMAG4bPgYNd@google.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-23spi: cadence: Remove redundant dev_err callShang XiaoJing
devm_ioremap_resource() prints error message in itself. Remove the dev_err call to avoid redundant error message. Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com> Link: https://lore.kernel.org/r/20220923101726.19420-1-shangxiaojing@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-22spi: xtensa-xtfpga: Switch to use devm_spi_alloc_master()Yang Yingliang
Switch to use devm_spi_alloc_master() to simpify error path. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Tested-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Link: https://lore.kernel.org/r/20220920114448.2681053-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-22spi: meson-spicc: make symbol 'meson_spicc_pow2_clk_ops' staticWei Yongjun
The sparse tool complains as follows: drivers/spi/spi-meson-spicc.c:570:22: warning: symbol 'meson_spicc_pow2_clk_ops' was not declared. Should it be static? This symbol is not used outside of spi-meson-spicc.c, so marks it static. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20220922040807.1409540-1-weiyongjun@huaweicloud.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-21spi: omap2-mcspi: Fix probe so driver works againDan Carpenter
This condition was accidentally changed from "if (status < 0)" to "if (status)". The platform_get_irq() function returns non-zero positive values on success so, unfortunately, the driver could not be used. Change the condition back to how it was. Fixes: f4ca8c88c2c7 ("spi: omap2-mcspi: Switch to use dev_err_probe() helper") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/Yyq8Q/kd301wVzg8@kili Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-19spi: spi-loopback-test: Add test to trigger DMA/PIO mixingVincent Whitchurch
Add a test where a small and a large transfer in a message hit the same cache line. This test currently fails on spi-s3c64xx on in DMA mode since it ends up mixing DMA and PIO without proper cache maintenance. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Link: https://lore.kernel.org/r/20220916113951.228398-2-vincent.whitchurch@axis.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-19spi: omap2-mcspi: Switch to use dev_err_probe() helperYang Yingliang
In the probe path, dev_err() can be replace with dev_err_probe() which will check if error code is -EPROBE_DEFER and prints the error name. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220917122504.1896302-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-14spi: mpc52xx: Replace of_gpio_count() by gpiod_count()Andy Shevchenko
As a preparation to unexport of_gpio_named_count(), convert the driver to use gpiod_count() instead. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220914153333.37701-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-14spi: fsl_spi: Convert to transfer_oneChristophe Leroy
Let the core handle all the chipselect bakery and replace transfer_one_message() by transfer_one() and prepare_message(). At the time being, there is fsl_spi_cs_control() to handle chipselects. That function handles both GPIO and non-GPIO chipselects. The GPIO chipselects will now be handled by the core directly, so only handle non-GPIO chipselects and hook it to ->set_cs Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/r/753266abafe81722d86c3ddb8bac8ef1cb00fe8c.1660829841.git.christophe.leroy@csgroup.eu Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-11spi: rockchip: add power-domains propertyJohan Jonker
The Rockchip rk3399 TRM mentions that pd_sdioaudio includes sdio, spi, i2s and spdif. Add a power-domains property to to match reality with spi-rockchip.yaml. Signed-off-by: Johan Jonker <jbx6244@gmail.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/12af4fe6-4d35-cb4a-f5f6-06e3aba990cb@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-10rockchip: add rockchip,rk3128-spiJohan Jonker
Add rockchip,rk3128-spi compatible string. Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/c05fb9a3-ebf7-adec-e8ca-bd137d157f50@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-10spi: Merge tag 'v6.0-rc4' into spi-6.1Mark Brown
Linux 6.0-rc4 so we can test on BeagleBone again.
2022-09-08spi: Group cs_change and cs_off flags together in struct spi_transferAndy Shevchenko
The commit 5e0531f6b90a ("spi: Add capability to perform some transfer with chipselect off") added a new flag but squeezed it into a wrong group of struct spi_transfer members (note that SPI_NBITS_* are macros for easier interpretation of the tx_nbits and rx_nbits bitfields). Group cs_change and cs_off flags together and their doc strings. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220908130518.32186-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-08spi: meson-spicc: do not rely on busy flag in pow2 clk opsNeil Armstrong
Since [1], controller's busy flag isn't set anymore when the __spi_transfer_message_noqueue() is used instead of the __spi_pump_transfer_message() logic for spi_sync transfers. Since the pow2 clock ops were limited to only be available when a transfer is ongoing (between prepare_transfer_hardware and unprepare_transfer_hardware callbacks), the only way to track this down is to check for the controller cur_msg. [1] ae7d2346dc89 ("spi: Don't use the message queue if possible in spi_sync") Fixes: 09992025dacd ("spi: meson-spicc: add local pow2 clock ops to preserve rate between messages") Fixes: ae7d2346dc89 ("spi: Don't use the message queue if possible in spi_sync") Reported-by: Markus Schneider-Pargmann <msp@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Tested-by: Markus Schneider-Pargmann <msp@baylibre.com> Link: https://lore.kernel.org/r/20220908121803.919943-1-narmstrong@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-08spi: lpspi: Remove the unneeded result variableye xingchen
Return the value pm_runtime_force_suspend() directly instead of storing it in another redundant variable. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Link: https://lore.kernel.org/r/20220908010429.342875-1-ye.xingchen@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-07spi: Add capability to perform some transfer with chipselect offChristophe Leroy
Some components require a few clock cycles with chipselect off before or/and after the data transfer done with CS on. Typically IDT 801034 QUAD PCM CODEC datasheet states "Note *: CCLK should have one cycle before CS goes low, and two cycles after CS goes high". The cycles "before" are implicitely provided by all previous activity on the SPI bus. But the cycles "after" must be provided in order to terminate the SPI transfer. In order to use that kind of component, add a cs_off flag to spi_transfer struct. When this flag is set, the transfer is performed with chipselect off. This allows consummer to add a dummy transfer at the end of the transfer list which is performed with chipselect OFF, providing the required additional clock cycles. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/r/434165c46f06d802690208a11e7ea2500e8da4c7.1662558898.git.christophe.leroy@csgroup.eu Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-07spi: nxp-fspi: Do not dereference fwnode in struct deviceAndy Shevchenko
In order to make the underneath API easier to change in the future, prevent users from dereferencing fwnode from struct device. Instead, use the specific dev_fwnode() API for that. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220906161048.39953-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-05spi: qup: add missing clk_disable_unprepare on error in ↵Xu Qiang
spi_qup_pm_resume_runtime() Add the missing clk_disable_unprepare() before return from spi_qup_pm_resume_runtime() in the error handling case. Fixes: dae1a7700b34 (“spi: qup: Handle clocks in pm_runtime suspend and resume”) Signed-off-by: Xu Qiang <xuqiang36@huawei.com> Link: https://lore.kernel.org/r/20220825065324.68446-2-xuqiang36@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-05spi: qup: add missing clk_disable_unprepare on error in spi_qup_resume()Xu Qiang
Add the missing clk_disable_unprepare() before return from spi_qup_resume() in the error handling case. Fixes: 64ff247a978f (“spi: Add Qualcomm QUP SPI controller support”) Signed-off-by: Xu Qiang <xuqiang36@huawei.com> Link: https://lore.kernel.org/r/20220825065324.68446-1-xuqiang36@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-04Linux 6.0-rc4Linus Torvalds
2022-09-04Merge tag 'powerpc-6.0-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix handling of PCI domains in /proc on 32-bit systems using the recently added support for numbering buses from zero for each domain. - A fix and a revert for some changes to use READ/WRITE_ONCE() which caused problems with KASAN enabled due to sanitisation calls being introduced in low-level paths that can't cope with it. - Fix build errors on 32-bit caused by the syscall table being misaligned sometimes. - Two fixes to get IBM Cell native machines booting again, which had bit-rotted while my QS22 was temporarily out of action. - Fix the papr_scm driver to not assume the order of events returned by the hypervisor is stable, and a related compile fix. Thanks to Aneesh Kumar K.V, Christophe Leroy, Jordan Niethe, Kajol Jain, Masahiro Yamada, Nathan Chancellor, Pali Rohár, Vaibhav Jain, and Zhouyi Zhou. * tag 'powerpc-6.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/papr_scm: Ensure rc is always initialized in papr_scm_pmu_register() Revert "powerpc/irq: Don't open code irq_soft_mask helpers" powerpc: Fix hard_irq_disable() with sanitizer powerpc/rtas: Fix RTAS MSR[HV] handling for Cell Revert "powerpc: Remove unused FW_FEATURE_NATIVE references" powerpc: align syscall table for ppc32 powerpc/pci: Enable PCI domains in /proc when PCI bus numbers are not unique powerpc/papr_scm: Fix nvdimm event mappings
2022-09-04Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "s390: - PCI interpretation compile fixes RISC-V: - fix unused variable warnings in vcpu_timer.c - move extern sbi_ext declarations to a header x86: - check validity of argument to KVM_SET_MP_STATE - use guest's global_ctrl to completely disable guest PEBS - fix a memory leak on memory allocation failure - mask off unsupported and unknown bits of IA32_ARCH_CAPABILITIES - fix build failure with Clang integrated assembler - fix MSR interception - always flush TLBs when enabling dirty logging" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: check validity of argument to KVM_SET_MP_STATE perf/x86/core: Completely disable guest PEBS via guest's global_ctrl KVM: x86: fix memoryleak in kvm_arch_vcpu_create() KVM: x86: Mask off unsupported and unknown bits of IA32_ARCH_CAPABILITIES KVM: s390: pci: Hook to access KVM lowlevel from VFIO riscv: kvm: move extern sbi_ext declarations to a header riscv: kvm: vcpu_timer: fix unused variable warnings KVM: selftests: Fix ambiguous mov in KVM_ASM_SAFE() KVM: selftests: Fix KVM_EXCEPTION_MAGIC build with Clang KVM: VMX: Heed the 'msr' argument in msr_write_intercepted() kvm: x86: mmu: Always flush TLBs when enabling dirty logging kvm: x86: mmu: Drop the need_remote_flush() function
2022-09-04Makefile.extrawarn: re-enable -Wformat for clang; take 2Nick Desaulniers
-Wformat was recently re-enabled for builds with clang, then quickly re-disabled, due to concerns stemming from the frequency of default argument promotion related warning instances. commit 258fafcd0683 ("Makefile.extrawarn: re-enable -Wformat for clang") commit 21f9c8a13bb2 ("Revert "Makefile.extrawarn: re-enable -Wformat for clang"") ISO WG14 has ratified N2562 to address default argument promotion explicitly for printf, as part of the upcoming ISO C2X standard. The behavior of clang was changed in clang-16 to not warn for the cited cases in all language modes. Add a version check, so that users of clang-16 now get the full effect of -Wformat. For older clang versions, re-enable flags under the -Wformat group that way users still get some useful checks related to format strings, without noisy default argument promotion warnings. I intentionally omitted -Wformat-y2k and -Wformat-security from being re-enabled, which are also part of -Wformat in clang-16. Link: https://github.com/ClangBuiltLinux/linux/issues/378 Link: https://github.com/llvm/llvm-project/issues/57102 Link: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2562.pdf Suggested-by: Justin Stitt <jstitt007@gmail.com> Suggested-by: Nathan Chancellor <nathan@kernel.org> Suggested-by: Youngmin Nam <youngmin.nam@samsung.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-09-03Merge tag 'gpio-fixes-for-v6.0-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: "A a set of fixes from the GPIO subsystem. Most are small driver fixes except the realtek-otto driver patch which is pretty big but addresses a significant flaw that can cause the CPU to stay infinitely busy on uncleared ISR on some platforms. Summary: - MAINTAINERS update - fix resource leaks in gpio-mockup and gpio-pxa - add missing locking in gpio-pca953x - use 32-bit I/O in gpio-realtek-otto - make irq_chip structures immutable in four more drivers" * tag 'gpio-fixes-for-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: ws16c48: Make irq_chip immutable gpio: 104-idio-16: Make irq_chip immutable gpio: 104-idi-48: Make irq_chip immutable gpio: 104-dio-48e: Make irq_chip immutable gpio: realtek-otto: switch to 32-bit I/O gpio: pca953x: Add mutex_lock for regcache sync in PM gpio: mockup: remove gpio debugfs when remove device gpio: pxa: use devres for the clock struct MAINTAINERS: rectify entry for XILINX GPIO DRIVER
2022-09-03gpio: ws16c48: Make irq_chip immutableWilliam Breathitt Gray
Kernel warns about mutable irq_chips: "not an immutable chip, please consider fixing!" Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the new helper functions, and call the appropriate gpiolib functions. Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-09-03gpio: 104-idio-16: Make irq_chip immutableWilliam Breathitt Gray
Kernel warns about mutable irq_chips: "not an immutable chip, please consider fixing!" Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the new helper functions, and call the appropriate gpiolib functions. Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-09-03gpio: 104-idi-48: Make irq_chip immutableWilliam Breathitt Gray
Kernel warns about mutable irq_chips: "not an immutable chip, please consider fixing!" Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the new helper functions, and call the appropriate gpiolib functions. Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-09-03gpio: 104-dio-48e: Make irq_chip immutableWilliam Breathitt Gray
Kernel warns about mutable irq_chips: "not an immutable chip, please consider fixing!" Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the new helper functions, and call the appropriate gpiolib functions. Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-09-03Merge tag 'for-linus-6.0-rc4-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: - a minor fix for the Xen grant driver - a small series fixing a recently introduced problem in the Xen blkfront/blkback drivers with negotiation of feature usage * tag 'for-linus-6.0-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/grants: prevent integer overflow in gnttab_dma_alloc_pages() xen-blkfront: Cache feature_persistent value before advertisement xen-blkfront: Advertise feature-persistent as user requested xen-blkback: Advertise feature-persistent as user requested
2022-09-03Merge tag 'loongarch-fixes-6.0-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson Pull LoongArch fixes from Huacai Chen: "Fix several build errors or warnings, cleanup some code, and adjust arch_do_signal_or_restart() to adapt generic entry" * tag 'loongarch-fixes-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: LoongArch: mm: Remove the unneeded result variable LoongArch: Fix arch_remove_memory() undefined build error LoongArch: Fix section mismatch due to acpi_os_ioremap() LoongArch: Improve dump_tlb() output messages LoongArch: Adjust arch_do_signal_or_restart() to adapt generic entry LoongArch: Avoid orphan input sections
2022-09-03Merge tag 's390-6.0-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Update defconfigs - Fix linker script to align nospec tables correctly to avoid potentially unbootable kernel with some config options - Fix alignment check in prepare_hugepage_range() for 2GB hugepages to avoid BUG in __unmap_hugepage_range() for unaligned mappings later - Remove useless hugepage address alignment in hugetlb fault handling * tag 's390-6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/hugetlb: fix prepare_hugepage_range() check for 2 GB hugepages s390: update defconfigs s390: fix nospec table alignments s390/mm: remove useless hugepage address alignment
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