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2020-03-26ata: move ata_eh_analyze_ncq_error() & co. to libata-sata.cBartlomiej Zolnierkiewicz
* move ata_eh_analyze_ncq_error() and ata_eh_read_log_10h() to libata-sata.c * add static inline for ata_eh_analyze_ncq_error() for CONFIG_SATA_HOST=n case (link->sactive is non-zero only if NCQ commands are actually queued so empty function body is sufficient) Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 16164 18 0 16182 3f36 drivers/ata/libata-eh.o after: 15446 18 0 15464 3c68 drivers/ata/libata-eh.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: start separating SATA specific code from libata-eh.cBartlomiej Zolnierkiewicz
Start separating SATA specific code from libata-eh.c: * move sata_async_notification() to libata-sata.c: Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 16243 18 0 16261 3f85 drivers/ata/libata-eh.o after: 16164 18 0 16182 3f36 drivers/ata/libata-eh.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move ata_sas_*() to libata-sata.cBartlomiej Zolnierkiewicz
* un-inline: - ata_scsi_dump_cdb() - __ata_scsi_queuecmd() * un-static: - ata_scsi_sdev_config() - ata_scsi_dev_config() - ata_scsi_dump_cdb() - __ata_scsi_queuecmd() * move ata_sas_*() to libata-sata.c: * add static inlines for CONFIG_SATA_HOST=n case for ata_sas_{allocate,free}_tag() Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 19137 23 576 19736 4d18 drivers/ata/libata-scsi.o after: 18330 23 576 18929 49f1 drivers/ata/libata-scsi.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: start separating SATA specific code from libata-scsi.cBartlomiej Zolnierkiewicz
Start separating SATA specific code from libata-scsi.c: * un-static ata_scsi_find_dev() * move following code to libata-sata.c: - SATA only sysfs device attributes handling - __ata_change_queue_depth() - ata_scsi_change_queue_depth() * cover with CONFIG_SATA_HOST ifdef SATA only sysfs device attributes handling code and ATA_SHT_NCQ() macro in <linux/libata.h> Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 20702 105 576 21383 5387 drivers/ata/libata-scsi.o after: 19137 23 576 19736 4d18 drivers/ata/libata-scsi.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move sata_deb_timing_*() to libata-sata.cBartlomiej Zolnierkiewicz
* move sata_deb_timing_*() to libata-sata.c * add static inline for sata_ehc_deb_timing() for CONFIG_SATA_HOST=n case Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32158 572 40 32770 8002 drivers/ata/libata-core.o after: 32015 572 40 32627 7f73 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move ata_qc_complete_multiple() to libata-sata.cBartlomiej Zolnierkiewicz
* move ata_qc_complete_multiple() to libata-sata.c Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32559 572 40 33171 8193 drivers/ata/libata-core.o after: 32162 572 40 32774 8006 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move sata_link_hardreset() to libata-sata.cBartlomiej Zolnierkiewicz
* move sata_link_hardreset() to libata-sata.c * add static inline for CONFIG_SATA_HOST=n case * make sata_set_spd_needed() static Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32724 572 40 33336 8238 drivers/ata/libata-core.o after: 32559 572 40 33171 8193 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move sata_link_{debounce,resume}() to libata-sata.cBartlomiej Zolnierkiewicz
* move sata_link_{debounce,resume}() to libata-sata.c * add static inline for CONFIG_SATA_HOST=n case (only one, for sata_link_resume() is needed) Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32816 572 40 33428 8294 drivers/ata/libata-core.o after: 32724 572 40 33336 8238 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move *sata_set_spd*() to libata-sata.cBartlomiej Zolnierkiewicz
* move *sata_set_spd*() to libata-sata.c * add static inlines for CONFIG_SATA_HOST=n case Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 32842 572 40 33458 82ae drivers/ata/libata-core.o after: 32812 572 40 33428 8290 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move sata_scr_*() to libata-sata.cBartlomiej Zolnierkiewicz
* move sata_scr_*() to libata-sata.c * add static inlines for CONFIG_SATA_HOST=n case Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 35642 572 40 36254 8d9e drivers/ata/libata-core.o 16607 18 0 16625 40f1 drivers/ata/libata-eh.o after: 32846 572 40 33458 82b2 drivers/ata/libata-core.o 16243 18 0 16261 3f85 drivers/ata/libata-eh.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: start separating SATA specific code from libata-core.cBartlomiej Zolnierkiewicz
Start separating SATA specific code from libata-core.c: * move following functions to libata-sata.c: - ata_tf_to_fis() - ata_tf_from_fis() - sata_link_scr_lpm() - ata_slave_link_init() - sata_lpm_ignore_phy_events() * group above functions together in <linux/libata.h> * include libata-sata.c in the build when CONFIG_SATA_HOST=y Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 37582 572 40 38194 9532 drivers/ata/libata-core.o after: 36762 572 40 37374 91fe drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: let compiler optimize out ata_eh_set_lpm() on non-SATA hostsBartlomiej Zolnierkiewicz
Add !IS_ENABLED(CONFIG_SATA_HOST) to ata_eh_set_lpm() to allow compiler to optimize out the function for non-SATA configs (for PATA hosts "ap && !ap->ops->set_lpm" condition is always true so it's sufficient for the function to return zero). Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 17353 18 0 17371 43db drivers/ata/libata-eh.o after: 16607 18 0 16625 40f1 drivers/ata/libata-eh.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: let compiler optimize out ata_dev_config_ncq() on non-SATA hostsBartlomiej Zolnierkiewicz
Add !IS_ENABLED(CONFIG_SATA_HOST) to ata_dev_config_ncq() to allow compiler to optimize out the function for non-SATA configs. Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 37582 572 40 38194 9532 drivers/ata/libata-core.o after: 36462 572 40 37074 90d2 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: add CONFIG_SATA_HOST=n version of ata_ncq_enabled()Bartlomiej Zolnierkiewicz
When CONFIG_SATA_HOST=n there are no NCQ capable host drivers built so it is safe to hardwire ata_ncq_enabled() to always return zero. Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 37820 572 40 38432 9620 drivers/ata/libata-core.o 21040 105 576 21721 54d9 drivers/ata/libata-scsi.o 17405 18 0 17423 440f drivers/ata/libata-eh.o after: 37582 572 40 38194 9532 drivers/ata/libata-core.o 20702 105 576 21383 5387 drivers/ata/libata-scsi.o 17353 18 0 17371 43db drivers/ata/libata-eh.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: separate PATA timings code from libata-core.cBartlomiej Zolnierkiewicz
Separate PATA timings code from libata-core.c: * add PATA_TIMINGS config option and make corresponding PATA host drivers (and ATA ACPI code) select it * move following PATA timings code to libata-pata-timings.c: - ata_timing_quantize() - ata_timing_merge() - ata_timing_find_mode() - ata_timing_compute() * group above functions together in <linux/libata.h> * include libata-pata-timings.c in the build when PATA_TIMINGS config option is enabled * cover ata_timing_cycle2mode() with CONFIG_ATA_ACPI ifdef (it depends on code from libata-core.c and libata-pata-timings.c while its only user is ATA ACPI) Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 39688 573 40 40301 9d6d drivers/ata/libata-core.o after: 37820 572 40 38432 9620 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: fix CodingStyle issues in PATA timings codeBartlomiej Zolnierkiewicz
* fix the overly long line in ata_timing_quantize() * use standard kernel CodingStyle in ata_timing_merge() * do not use assignment in if condition in ata_timing_compute() * fix non-standard comment style in ata_timing_compute() Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: remove EXPORT_SYMBOL_GPL()s not used by modulesBartlomiej Zolnierkiewicz
Remove EXPORT_SYMBOL_GPL()s for functions used only by the core libata code. Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 39838 573 40 40451 9e03 drivers/ata/libata-core.o 21071 105 576 21752 54f8 drivers/ata/libata-scsi.o 17519 18 0 17537 4481 drivers/ata/libata-eh.o after: 39688 573 40 40301 9d6d drivers/ata/libata-core.o 21040 105 576 21721 54d9 drivers/ata/libata-scsi.o 17405 18 0 17423 440f drivers/ata/libata-eh.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: move EXPORT_SYMBOL_GPL()s close to exported codeBartlomiej Zolnierkiewicz
Move EXPORT_SYMBOL_GPL()s close to exported code like it is done in other kernel subsystems. As a nice side effect this results in the removal of few ifdefs. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: optimize ata_scsi_rbuf[] sizeBartlomiej Zolnierkiewicz
Currently the maximum required size of the ata_scsi_rbuf[] is 576 bytes in ata_scsiop_inq_89() so modify ATA_SCSI_RBUF_SIZE define accordingly. Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 20782 105 4096 24983 6197 drivers/ata/libata-scsi.o after: 20782 105 576 21463 53d7 drivers/ata/libata-scsi.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: optimize struct ata_force_param sizeBartlomiej Zolnierkiewicz
Optimize struct ata_force_param size by: - using u8 for cbl and spd_limit fields - using u16 for lflags field Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 41064 573 40 41677 a2cd drivers/ata/libata-core.o after: 40654 573 40 41267 a133 drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: use COMMAND_LINE_SIZE for ata_force_param_buf[] sizeBartlomiej Zolnierkiewicz
Use COMMAND_LINE_SIZE instead PAGE_SIZE for ata_force_param_buf[] size as libata parameters buffer doesn't need to be bigger than the command line buffer. For many architectures this results in decreased libata-core.o size (COMMAND_LINE_SIZE varies from 256 to 4096 while the minimum PAGE_SIZE is 4096). Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 41064 4413 40 45517 b1cd drivers/ata/libata-core.o after: 41064 573 40 41677 a2cd drivers/ata/libata-core.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: simplify ata_scsiop_inq_89()Bartlomiej Zolnierkiewicz
Initialize rbuf[] directly instead of using ata_tf_to_fis(). This results in simpler and smaller code. It also allows separating ata_tf_to_fis() into SATA specific libata part in the future. Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 20824 105 4096 25025 61c1 drivers/ata/libata-scsi.o after: 20782 105 4096 24983 6197 drivers/ata/libata-scsi.o Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26sata_promise: use ata_cable_sata()Bartlomiej Zolnierkiewicz
Use core helper instead of open-coding it. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: make SATA_PMP option selectable only if any SATA host driver is enabledBartlomiej Zolnierkiewicz
There is no reason to expose SATA_PMP config option when no SATA host drivers are enabled. To fix it add SATA_HOST config option, make all SATA host drivers select it and finally make SATA_PMP config options depend on it. This also serves as preparation for the future changes which optimize libata core code size on PATA only setups. CC: "James E.J. Bottomley" <jejb@linux.ibm.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> # for SCSI bits Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: expose ncq_enable_prio sysfs attribute only on NCQ capable hostsBartlomiej Zolnierkiewicz
There is no point in exposing ncq_enable_prio sysfs attribute for devices on PATA and non-NCQ capable SATA hosts so: * remove dev_attr_ncq_prio_enable from ata_common_sdev_attrs[] * add ata_ncq_sdev_attrs[] * update ATA_NCQ_SHT() macro to use ata_ncq_sdev_attrs[] Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26ata: remove stale maintainership information from core codeBartlomiej Zolnierkiewicz
In commit 7634ccd2da97 ("libata: maintainership update") from 2018 Jens has officially taken over libata maintainership from Tejun so remove stale information from core libata code. Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-26riscv: patch code by fixmap mappingZong Li
On strict kernel memory permission, the ftrace have to change the permission of text for dynamic patching the intructions. Use riscv_patch_text_nosync() to patch code instead of probe_kernel_write. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26riscv: introduce interfaces to patch kernel codeZong Li
On strict kernel memory permission, we couldn't patch code without writable permission. Preserve two holes in fixmap area, so we can map the kernel code temporarily to fixmap area, then patch the instructions. We need two pages here because we support the compressed instruction, so the instruction might be align to 2 bytes. When patching the 32-bit length instruction which is 2 bytes alignment, it will across two pages. Introduce two interfaces to patch kernel code: riscv_patch_text_nosync: - patch code without synchronization, it's caller's responsibility to synchronize all CPUs if needed. riscv_patch_text: - patch code and always synchronize with stop_machine() Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26riscv: add macro to get instruction lengthZong Li
Extract the calculation of instruction length for common use. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26riscv: add STRICT_KERNEL_RWX supportZong Li
The commit contains that make text section as non-writable, rodata section as read-only, and data section as non-executable. The init section should be changed to non-executable. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26riscv: add alignment for text, rodata and data sectionsZong Li
The kernel mapping will tried to optimize its mapping by using bigger size. In rv64, it tries to use PMD_SIZE, and tryies to use PGDIR_SIZE in rv32. To ensure that the start address of these sections could fit the mapping entry size, make them align to the biggest alignment. Define a macro SECTION_ALIGN because the HPAGE_SIZE or PMD_SIZE, etc., are invisible in linker script. This patch is prepared for STRICT_KERNEL_RWX support. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26riscv: move exception table immediately after RO_DATAZong Li
Move EXCEPTION_TABLE immediately after RO_DATA. Make it easy to set the attribution of the sections which should be read-only at a time. Add _data to specify the start of data section with write permission. This patch is prepared for STRICT_KERNEL_RWX support. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26riscv: add ARCH_SUPPORTS_DEBUG_PAGEALLOC supportZong Li
ARCH_SUPPORTS_DEBUG_PAGEALLOC provides a hook to map and unmap pages for debugging purposes. Implement the __kernel_map_pages functions to fill the poison pattern. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26riscv: add ARCH_HAS_SET_DIRECT_MAP supportZong Li
Add set_direct_map_*() functions for setting the direct map alias for the page to its default permissions and to an invalid state that cannot be cached in a TLB. (See d253ca0c ("x86/mm/cpa: Add set_direct_map_*() functions")) Add a similar implementation for RISC-V. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26riscv: add ARCH_HAS_SET_MEMORY supportZong Li
Add set_memory_ro/rw/x/nx architecture hooks to change the page attribution. Use own set_memory.h rather than generic set_memory.h (i.e. include/asm-generic/set_memory.h), because we want to add other function prototypes here. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-26dt-bindings: sram: qcom: Clean-up 'ranges' and child node namesRob Herring
The regex for child nodes doesn't match the example. This wasn't flagged with 'additionalProperties: false' missing. The child node schema was also incorrect with 'ranges' property as it applies to child nodes and should be moved up to the parent node. Fixes: 957fd69d396b ("dt-bindings: soc: qcom: add On Chip MEMory (OCMEM) bindings") Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Brian Masney <masneyb@onstation.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Brian Masney <masneyb@onstation.org> Cc: linux-arm-msm@vger.kernel.org
2020-03-26dt-bindings: iio/accel: Drop duplicate adi,adxl345/6 from trivial-devices.yamlRob Herring
The 'adi,adxl345' definition is a duplicate as there's a full binding in: Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml The trivial-devices binding doesn't capture that 'adi,adxl346' has a fallback compatible 'adi,adxl345', so let's add it to adi,adxl345.yaml. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Cc: Michael Hennerich <michael.hennerich@analog.com> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: linux-iio@vger.kernel.org Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Jonathan Cameron <jic23@kernel.org>
2020-03-26drm/vboxvideo: Add missing remove_conflicting_pci_framebuffers call, v2Hans de Goede
The vboxvideo driver is missing a call to remove conflicting framebuffers. Surprisingly, when using legacy BIOS booting this does not really cause any issues. But when using UEFI to boot the VM then plymouth will draw on both the efifb /dev/fb0 and /dev/drm/card0 (which has registered /dev/fb1 as fbdev emulation). VirtualBox will actual display the output of both devices (I guess it is showing whatever was drawn last), this causes weird artifacts because of pitch issues in the efifb when the VM window is not sized at 1024x768 (the window will resize to its last size once the vboxvideo driver loads, changing the pitch). Adding the missing drm_fb_helper_remove_conflicting_pci_framebuffers() call fixes this. Changes in v2: -Make the drm_fb_helper_remove_conflicting_pci_framebuffers() call one of the first things we do in our probe() method Cc: stable@vger.kernel.org Fixes: 2695eae1f6d3 ("drm/vboxvideo: Switch to generic fbdev emulation") Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200325144310.36779-1-hdegoede@redhat.com
2020-03-26staging: wilc1000: Use crc7 in lib/ rather than a private copyGeorge Spelvin
The code in lib/ is the desired polynomial, and even includes the 1-bit left shift in the table rather than needing to code it explicitly. While I'm in Kconfig, add a description of what a WILC1000 is. Kconfig questions that require me to look up a data sheet to find out that I probably don't have one are a pet peeve. Cc: Adham Abozaeid <adham.abozaeid@microchip.com> Cc: linux-wireless@vger.kernel.org Reviewed-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: George Spelvin <lkml@sdf.org> Link: https://lore.kernel.org/r/20200326152251.19094-1-ajay.kathat@microchip.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26Staging: rtl8192u: ieee80211: Use netdev_alert().Sam Muhammed
Replace printk(KERN_ALERT ...) with netdev_alert() when a network device is available. Signed-off-by: Sam Muhammed <jane.pnx9@gmail.com> Link: https://lore.kernel.org/r/70e8781cd2a9512cb6b3c42400a10323f3024f3c.1585233434.git.jane.pnx9@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26Staging: rtl8192u: ieee80211: Use netdev_info() with network devices.Sam Muhammed
netdev_info() should be used instead of printk(KERN_INFO ...) since it's specific to and preferable for printing messages for network devices. Signed-off-by: Sam Muhammed <jane.pnx9@gmail.com> Link: https://lore.kernel.org/r/ce20980cc1947255b8a2de3c1f1364c11c163b9e.1585233434.git.jane.pnx9@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26Staging: rtl8192u: ieee80211: Use netdev_warn() for network devices.Sam Muhammed
Use netdev_warn() over printk(). netdev_warn() is specific for printing warning messages for network devices, and preferable over printk(KERN_WARNING ...). Signed-off-by: Sam Muhammed <jane.pnx9@gmail.com> Link: https://lore.kernel.org/r/02fe0666cb737a3b0581081c9e7c179bfb820cac.1585233434.git.jane.pnx9@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26Staging: rtl8192u: ieee80211: Use netdev_dbg() for debug messages.Sam Muhammed
Replace printk(KERN_DEBUG ...) with netdev_dbg() across the driver. since netdev_dbg() is preferable and specific for printing debug messages for network devices. Signed-off-by: Sam Muhammed <jane.pnx9@gmail.com> Link: https://lore.kernel.org/r/84dc7e33954509457efce2a35fb293e631845a96.1585233434.git.jane.pnx9@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26xfs: prohibit fs freezing when using empty transactionsDarrick J. Wong
I noticed that fsfreeze can take a very long time to freeze an XFS if there happens to be a GETFSMAP caller running in the background. I also happened to notice the following in dmesg: ------------[ cut here ]------------ WARNING: CPU: 2 PID: 43492 at fs/xfs/xfs_super.c:853 xfs_quiesce_attr+0x83/0x90 [xfs] Modules linked in: xfs libcrc32c ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 ip_set_hash_ip ip_set_hash_net xt_tcpudp xt_set ip_set_hash_mac ip_set nfnetlink ip6table_filter ip6_tables bfq iptable_filter sch_fq_codel ip_tables x_tables nfsv4 af_packet [last unloaded: xfs] CPU: 2 PID: 43492 Comm: xfs_io Not tainted 5.6.0-rc4-djw #rc4 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.10.2-1ubuntu1 04/01/2014 RIP: 0010:xfs_quiesce_attr+0x83/0x90 [xfs] Code: 7c 07 00 00 85 c0 75 22 48 89 df 5b e9 96 c1 00 00 48 c7 c6 b0 2d 38 a0 48 89 df e8 57 64 ff ff 8b 83 7c 07 00 00 85 c0 74 de <0f> 0b 48 89 df 5b e9 72 c1 00 00 66 90 0f 1f 44 00 00 41 55 41 54 RSP: 0018:ffffc900030f3e28 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff88802ac54000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81e4a6f0 RDI: 00000000ffffffff RBP: ffff88807859f070 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000010 R12: 0000000000000000 R13: ffff88807859f388 R14: ffff88807859f4b8 R15: ffff88807859f5e8 FS: 00007fad1c6c0fc0(0000) GS:ffff88807e000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0c7d237000 CR3: 0000000077f01003 CR4: 00000000001606a0 Call Trace: xfs_fs_freeze+0x25/0x40 [xfs] freeze_super+0xc8/0x180 do_vfs_ioctl+0x70b/0x750 ? __fget_files+0x135/0x210 ksys_ioctl+0x3a/0xb0 __x64_sys_ioctl+0x16/0x20 do_syscall_64+0x50/0x1a0 entry_SYSCALL_64_after_hwframe+0x49/0xbe These two things appear to be related. The assertion trips when another thread initiates a fsmap request (which uses an empty transaction) after the freezer waited for m_active_trans to hit zero but before the the freezer executes the WARN_ON just prior to calling xfs_log_quiesce. The lengthy delays in freezing happen because the freezer calls xfs_wait_buftarg to clean out the buffer lru list. Meanwhile, the GETFSMAP caller is continuing to grab and release buffers, which means that it can take a very long time for the buffer lru list to empty out. We fix both of these races by calling sb_start_write to obtain freeze protection while using empty transactions for GETFSMAP and for metadata scrubbing. The other two users occur during mount, during which time we cannot fs freeze. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-03-26xfs: shutdown on failure to add page to log bioBrian Foster
If the bio_add_page() call fails, we proceed to write out a partially constructed log buffer. This corrupts the physical log such that log recovery is not possible. Worse, persistent occurrences of this error eventually lead to a BUG_ON() failure in bio_split() as iclogs wrap the end of the physical log, which triggers log recovery on subsequent mount. Rather than warn about writing out a corrupted log buffer, shutdown the fs as is done for any log I/O related error. This preserves the consistency of the physical log such that log recovery succeeds on a subsequent mount. Note that this was observed on a 64k page debug kernel without upstream commit 59bb47985c1d ("mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two)"), which demonstrated frequent iclog bio overflows due to unaligned (slab allocated) iclog data buffers. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-03-26xfs: directory bestfree check should release buffersDarrick J. Wong
When we're checking bestfree information in directory blocks, always drop the block buffer at the end of the function. We should always release resources when we're done using them. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-03-26xfs: drop all altpath buffers at the end of the sibling checkDarrick J. Wong
The dirattr btree checking code uses the altpath substructure of the dirattr state structure to check the sibling pointers of dir/attr tree blocks. At the end of sibling checks, xfs_da3_path_shift could have changed multiple levels of buffer pointers in the altpath structure. Although we release the leaf level buffer, this isn't enough -- we also need to release the node buffers that are unique to the altpath. Not releasing all of the altpath buffers leaves them locked to the transaction. This is suboptimal because we should release resources when we don't need them anymore. Fix the function to loop all levels of the altpath, and fix the return logic so that we always run the loop. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-03-26xfs: preserve default grace interval during quotacheckDarrick J. Wong
When quotacheck runs, it zeroes all the timer fields in every dquot. Unfortunately, it also does this to the root dquot, which erases any preconfigured grace intervals and warning limits that the administrator may have set. Worse yet, the incore copies of those variables remain set. This cache coherence problem manifests itself as the grace interval mysteriously being reset back to the defaults at the /next/ mount. Fix it by not resetting the root disk dquot's timer and warning fields. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-03-26ext4: disable dioread_nolock whenever delayed allocation is disabledEric Whitney
The patch "ext4: make dioread_nolock the default" (244adf6426ee) causes generic/422 to fail when run in kvm-xfstests' ext3conv test case. This applies both the dioread_nolock and nodelalloc mount options, a combination not previously tested by kvm-xfstests. The failure occurs because the dioread_nolock code path splits a previously fallocated multiblock extent into a series of single block extents when overwriting a portion of that extent. That causes allocation of an extent tree leaf node and a reshuffling of extents. Once writeback is completed, the individual extents are recombined into a single extent, the extent is moved again, and the leaf node is deleted. The difference in block utilization before and after writeback due to the leaf node triggers the failure. The original reason for this behavior was to avoid ENOSPC when handling I/O completions during writeback in the dioread_nolock code paths when delayed allocation is disabled. It may no longer be necessary, because code was added in the past to reserve extra space to solve this problem when delayed allocation is enabled, and this code may also apply when delayed allocation is disabled. Until this can be verified, don't use the dioread_nolock code paths if delayed allocation is disabled. Signed-off-by: Eric Whitney <enwlinux@gmail.com> Link: https://lore.kernel.org/r/20200319150028.24592-1-enwlinux@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-03-26ext4: do not commit super on read-only bdevEric Sandeen
Under some circumstances we may encounter a filesystem error on a read-only block device, and if we try to save the error info to the superblock and commit it, we'll wind up with a noisy error and backtrace, i.e.: [ 3337.146838] EXT4-fs error (device pmem1p2): ext4_get_journal_inode:4634: comm mount: inode #0: comm mount: iget: illegal inode # ------------[ cut here ]------------ generic_make_request: Trying to write to read-only block-device pmem1p2 (partno 2) WARNING: CPU: 107 PID: 115347 at block/blk-core.c:788 generic_make_request_checks+0x6b4/0x7d0 ... To avoid this, commit the error info in the superblock only if the block device is writable. Reported-by: Ritesh Harjani <riteshh@linux.ibm.com> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/4b6e774d-cc00-3469-7abb-108eb151071a@sandeen.net Signed-off-by: Theodore Ts'o <tytso@mit.edu>
generated by cgit (git 2.34.1) at 2025-09-22 00:15:09 +0000