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2020-09-30mtd: rawnand: Use the ECC framework user input parsing bitsMiquel Raynal1-72/+70
Many helpers are generic to all NAND chips, they should not be raw-NAND specific, so use the generic ones. To avoid moving all the raw NAND core "history" into the generic NAND layer, we keep a part of this parsing in the raw NAND core to ensure backward compatibility. Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-30mtd: rawnand: Use the ECC framework nand_ecc_is_strong_enough() helperMiquel Raynal1-38/+1
Plus, the new helper has a more "english" name. Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-30mtd: rawnand: Use the ECC framework OOB layoutsMiquel Raynal8-173/+19
No need to have our own in the raw NAND core. Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-30mtd: hyperbus: hbmc-am654: Add DMA support for readsVignesh Raghavendra1-1/+125
AM654 HyperBus controller provides MMIO interface to read data from flash. So add DMA memcpy support for reading data over MMIO interface. This provides 5x improvement in throughput and reduces CPU usage as well. Signed-off-by: Vignesh Raghavendra <[email protected]> Reviewed-by: Peter Ujfalusi <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-09-30mtd: hyperbus: hbmc-am654: Drop pm_runtime* calls from probeVignesh Raghavendra1-14/+2
Recent genpd changes for K3 platform ensure device is ON before driver probe is called. Therefore, drop redundant pm_runtime_* calls from driver to simplify the code. Signed-off-by: Vignesh Raghavendra <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-09-30mtd: hyperbus: hbmc-am654: Fix direct mapping setup flash accessVignesh Raghavendra1-2/+2
Setting up of direct mapping should be done with flash node's IO address space and not with controller's IO region. Fixes: b6fe8bc67d2d3 ("mtd: hyperbus: move direct mapping setup to AM654 HBMC driver") Signed-off-by: Vignesh Raghavendra <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-09-29mtd: spi-nor: winbond: Add support for w25q64jwmIkjoon Jang1-0/+9
Add support Winbond w25q{64,128,256}jwm which are identical to existing w25q32jwm except for their sizes. This was tested with w25q64jwm, basic erase/write/readback and lock/unlock both lower/upper blocks were okay. Signed-off-by: [email protected] <[email protected]> Signed-off-by: Xingyu Wu <[email protected]> Signed-off-by: ST Lin <[email protected]> Tested-by: Nicolas Boichat <[email protected]> Signed-off-by: Ikjoon Jang <[email protected]> Signed-off-by: Vignesh Raghavendra <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-09-29mtd: spi-nor: intel-spi: Add support for Intel Alder Lake-S SPI serial flashMika Westerberg1-0/+1
Intel Alder Lake-S has the same SPI serial flash controller as Cannon Lake. Add Alder Lake-S PCI ID to the driver list of supported devices. Signed-off-by: Mika Westerberg <[email protected]> Signed-off-by: Vignesh Raghavendra <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-09-29mtd: spi-nor: macronix: Add SECT_4K to mx25l12805dRobert Marko1-1/+1
According to the mx25l12805d datasheet it supports using 4K or 64K sectors. So lets add the SECT_4K to enable 4K sector usage. Datasheet: https://www.mxic.com.tw/Lists/Datasheet/Attachments/7321/MX25L12805D,%203V,%20128Mb,%20v1.2.pdf Cc: Luka Perkov <[email protected]> Signed-off-by: Robert Marko <[email protected]> Signed-off-by: Vignesh Raghavendra <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-09-29mtd: spi-nor: Prefer asynchronous probeDouglas Anderson1-0/+1
On my system the spi_nor_probe() took ~6 ms at bootup. That's not a lot, but every little bit adds up to a slow bootup. While we can get this out of the boot path by making it a module, there are times where it is convenient (or even required) for this to be builtin the kernel. Let's set that we prefer async probe so that we don't block other drivers from probing while we are probing. This is a tiny little change that is almost guaranteed to be safe for anything that is able to run as a module, which SPI_NOR is. Specifically modules are already probed asynchronously. Also: since other things in the system may have enabled asynchronous probe the system may already be doing other things during our probe. There is a small possibility that some other driver that was a client of SPI_NOR didn't handle -EPROBE_DEFER and was relying on probe ordering and only worked when the SPI_NOR and the SPI bus were builtin. In that case the other driver has a bug that's waiting to hit and the other driver should be fixed. Signed-off-by: Douglas Anderson <[email protected]> Signed-off-by: Vignesh Raghavendra <[email protected]> Link: https://lore.kernel.org/r/20200902160002.1.I658d1c0db9adfeb9a59bc55e96a19e192c959e55@changeid
2020-09-28mtd: rawnand: Make use of the ECC frameworkMiquel Raynal2-0/+2
Just enable the ECC framework with raw NAND so that we can drop, one by one, all the unnecessary/redundant definitions. Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-28mtd: rawnand: Use nanddev_get/set_ecc_requirements() when relevantMiquel Raynal16-86/+144
Instead of accessing ->strength/step_size directly. Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-28mtd: spinand: Use nanddev_get_ecc_conf() when relevantMiquel Raynal3-9/+10
Instead of accessing ->strength/step_size directly. Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-28mtd: rawnand: Use the new ECC engine type enumerationMiquel Raynal50-181/+207
Mechanical switch from the legacy "mode" enumeration to the new "engine type" enumeration in drivers and board files. The device tree parsing is also updated to return the new enumeration from the old strings. Signed-off-by: Miquel Raynal <[email protected]> Reviewed-by: Boris Brezillon <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-28mtd: rawnand: Separate the ECC engine type and the ECC byte placementMiquel Raynal7-45/+64
The use of "syndrome" placement should not be encoded in the ECC engine mode/type. Create a "placement" field in NAND chip and change all occurrences of the NAND_ECC_HW_SYNDROME enumeration to be just NAND_ECC_HW and possibly a placement entry like NAND_ECC_PLACEMENT_INTERLEAVED. Signed-off-by: Miquel Raynal <[email protected]> Reviewed-by: Boris Brezillon <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-24bdi: initialize ->ra_pages and ->io_pages in bdi_initChristoph Hellwig1-0/+2
Set up a readahead size by default, as very few users have a good reason to change it. This means code, ecryptfs, and orangefs now set up the values while they were previously missing it, while ubifs, mtd and vboxsf manually set it to 0 to avoid readahead. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Jan Kara <[email protected]> Acked-by: David Sterba <[email protected]> [btrfs] Acked-by: Richard Weinberger <[email protected]> [ubifs, mtd] Signed-off-by: Jens Axboe <[email protected]>
2020-09-17ubi: check kthread_should_stop() after the setting of task stateZhihao Cheng1-0/+13
A detach hung is possible when a race occurs between the detach process and the ubi background thread. The following sequences outline the race: ubi thread: if (list_empty(&ubi->works)... ubi detach: set_bit(KTHREAD_SHOULD_STOP, &kthread->flags) => by kthread_stop() wake_up_process() => ubi thread is still running, so 0 is returned ubi thread: set_current_state(TASK_INTERRUPTIBLE) schedule() => ubi thread will never be scheduled again ubi detach: wait_for_completion() => hung task! To fix that, we need to check kthread_should_stop() after we set the task state, so the ubi thread will either see the stop bit and exit or the task state is reset to runnable such that it isn't scheduled out indefinitely. Signed-off-by: Zhihao Cheng <[email protected]> Cc: <[email protected]> Fixes: 801c135ce73d5df1ca ("UBI: Unsorted Block Images") Reported-by: [email protected] Signed-off-by: Richard Weinberger <[email protected]>
2020-09-15mtd: spear_smi: use for_each_child_of_node() macroQinglang Miao1-2/+2
Use for_each_child_of_node() macro instead of open coding it. Signed-off-by: Qinglang Miao <[email protected]> Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-14Revert "mtd: spi-nor: Add capability to disable flash quad mode"Yicong Yang2-41/+24
As the only user has been removed in previous patch, let's revert this one together. This reverts commit be192209d5a33c912caa4a05d6f92b89328d8db8. Reported-by: Matthias Weisser <[email protected]> Suggested-by: Vignesh Raghavendra <[email protected]> Signed-off-by: Yicong Yang <[email protected]> Signed-off-by: Vignesh Raghavendra <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-09-14Revert "mtd: spi-nor: Disable the flash quad mode in spi_nor_restore()"Yicong Yang1-2/+0
Previous patch intends to restore the flash's QE bit when removed/shutdown, but may have some problems and break the flash: - for those originally in Quad mode, this patch will clear the QE bit when unloaded the flash, which is incorrect. - even with above problem solved, it may still break the flash as some flash's QE bit is non-volatile and lots of set/reset will wear out the bit. - the restore method cannot be proved to be valid as if a hard reset or accident crash happened, the spi_nor_restore() won't be performed the the QE bit will not be restored as we expected to. So let's revert it to fix this. The discussion can be found at [1]. This reverts commit cc59e6bb6cd69d3347c06ccce088c5c6052e041e. [1] https://lore.kernel.org/linux-mtd/CAO8h3eFLVLRmw7u+rurKsg7=Nh2q-HVq-HgVXig8gf5Dffk8MA@mail.gmail.com/ Reported-by: Matthias Weisser <[email protected]> Suggested-by: Vignesh Raghavendra <[email protected]> Signed-off-by: Yicong Yang <[email protected]> Signed-off-by: Vignesh Raghavendra <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-09-11mtd: mtdconcat: map: remove redundant assignment to variable 'size'Colin Ian King1-1/+0
Variable 'size' is being assigned the value zero that will never be read. The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-07mtd: mtdoops: Don't write panic data twiceMark Tomlinson1-5/+6
If calling mtdoops_write, don't also schedule work to be done later. Although this appears to not be causing an issue, possibly because the scheduled work will never get done, it is confusing. Fixes: 016c1291ce70 ("mtd: mtdoops: do not use mtd->panic_write directly") Signed-off-by: Mark Tomlinson <[email protected]> Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-02mtd: nand: Introduce the ECC engine frameworkMiquel Raynal3-0/+494
Create a generic ECC engine framework. This is a base to instantiate ECC engine objects. If we really want to be generic, bindings must evolve, so here is the new logic. The following three properties are mutually exclusive: - The nand-no-ecc-engine boolean property is set and there is no ECC engine to retrieve. - The nand-use-soft-ecc-engine boolean property is set and the core will force using the use of software correction. - There is a nand-ecc-engine property pointing at a node which will act as ECC engine. It the later case, the property may reference: - The NAND chip node itself (for the on-die ECC case). - The parent node if the NAND controller embeds an ECC engine. - Any other node being an external ECC controller as well. Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-02mtd: mtdconcat: map through panic write handlerMatt Weber1-0/+44
Allows a mtdconcat's subdevice->_panic_write to be used for capturing a mtdoops dump. Note: The ->_panic_write is mapped through from the first chip that is part of the concat virtual device. Signed-off-by: Matthew Weber <[email protected]> [[email protected]: return err, not void] Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-09-01mtd: rawnand: oxnas: cleanup/simplify codePavel Machek1-2/+1
Simplify oxnas_nand_probe. Signed-off-by: Pavel Machek (CIP) <[email protected]> Acked-by: Neil Armstrong <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2020-08-27mtd: lpddr: fix excessive stack usage with clangArnd Bergmann1-16/+19
Building lpddr2_nvm with clang can result in a giant stack usage in one function: drivers/mtd/lpddr/lpddr2_nvm.c:399:12: error: stack frame size of 1144 bytes in function 'lpddr2_nvm_probe' [-Werror,-Wframe-larger-than=] The problem is that clang decides to build a copy of the mtd_info structure on the stack and then do a memcpy() into the actual version. It shouldn't really do it that way, but it's not strictly a bug either. As a workaround, use a static const version of the structure to assign most of the members upfront and then only set the few members that require runtime knowledge at probe time. Fixes: 96ba9dd65788 ("mtd: lpddr: add driver for LPDDR2-NVM PCM memories") Signed-off-by: Arnd Bergmann <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Acked-by: Miquel Raynal <[email protected]> Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-08-27mtd: Avoid comma separated statementsJoe Perches1-2/+8
Use semicolons and braces. Signed-off-by: Joe Perches <[email protected]> Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/ae92f4c0507c470d9461886410dc7030192f9014.1598331149.git.joe@perches.com
2020-08-27mtd: maps: physmap: Retain mtd-name property from dtsChris Packham1-1/+2
In physmap_flash_of_init() the maps[].name can be populated based on the optional 'linux,mtd-name' property in the dts. Make sure this is retained when filling in the rest of the map[] data. Signed-off-by: Chris Packham <[email protected]> Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-08-27mtd: lpddr: Move function print_drs_error to lpddr_cmds.cGustavo A. R. Silva1-0/+28
Function print_drs_error is only used in drivers/mtd/lpddr/lpddr_cmds.c so, better to move it there. Also, notice that there's no need for inline as the function is used once. Lastly, fix the following checkpatch warning: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' +static void print_drs_error(unsigned dsr) Suggested-by: Joe Perches <[email protected]> Signed-off-by: Gustavo A. R. Silva <[email protected]> Reviewed-by: Miquel Raynal <[email protected]> Signed-off-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/linux-mtd/e0063cbd65f3b47be1db34efc494ea3047634d88.1588016644.git.gustavo@embeddedor.com
2020-08-27mtd: mtdcore: Convert to DEFINE_SHOW_ATTRIBUTEYongqiang Liu1-24/+4
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code. Signed-off-by: Yongqiang Liu <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2020-08-27mtd: nand: Add a NAND page I/O request typeMiquel Raynal1-2/+2
Use an enum to differentiate the type of I/O (reading or writing a page). Also update the request iterator. Signed-off-by: Miquel Raynal <[email protected]> Reviewed-by: Boris Brezillon <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-08-27mtd: rawnand: Rename the ECC algorithm enumeration itemsMiquel Raynal27-62/+62
NAND_ECC_ is not a meaningful prefix, use NAND_ECC_ALGO_ instead. Signed-off-by: Miquel Raynal <[email protected]> Reviewed-by: Boris Brezillon <[email protected]> Link: https://lore.kernel.org/linux-mtd/[email protected]
2020-08-10Merge tag 'for-linus-5.9-rc1' of ↵Linus Torvalds2-1/+7
git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs Pull JFFS2, UBI and UBIFS updates from Richard Weinberger: "JFFS2: - Fix for a corner case while mounting - Fix for an use-after-free issue UBI: - Fix for a memory load while attaching - Don't produce an anchor PEB with fastmap being disabled UBIFS: - Fix for orphan inode logic - Spelling fixes - New mount option to specify filesystem version" * tag 'for-linus-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: jffs2: fix UAF problem jffs2: fix jffs2 mounting failure ubifs: Fix wrong orphan node deletion in ubifs_jnl_update|rename ubi: fastmap: Free fastmap next anchor peb during detach ubi: fastmap: Don't produce the initial next anchor PEB when fastmap is disabled ubifs: misc.h: delete a duplicated word ubifs: add option to specify version for new file systems
2020-08-09Merge tag 'mtd/for-5.9' of ↵Linus Torvalds51-792/+1104
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull mtd updates from Miquel Raynal: "MTD core changes: - Spelling - http to https updates NAND core changes: - Drop useless 'depends on' in Kconfig - Add an extra level in the Kconfig hierarchy - Trivial spellings - Dynamic allocation of the interface configurations - Dropping the default ONFI timing mode - Various cleanup (types, structures, naming, comments) - Hide the chip->data_interface indirection - Add the generic rb-gpios property - Add the ->choose_interface_config() hook - Introduce nand_choose_best_sdr_timings() - Use default values for tPROG_max and tBERS_max - Avoid redefining tR_max and tCCS_min - Add a helper to find the closest ONFI mode - bcm63xx MTD parsers: simplify CFE detection Raw NAND controller drivers changes: - fsl-upm: Deprecation of specific DT properties - fsl_upm: Driver rework and cleanup in favor of ->exec_op() - Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use - brcmnand: ECC error handling on EDU transfers - brcmnand: Don't default to EDU transfers - qcom: Set BAM mode only if not set already - qcom: Avoid write to unavailable register - gpio: Driver rework in favor of ->exec_op() - tango: ->exec_op() conversion - mtk: ->exec_op() conversion Raw NAND chip drivers changes: - toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4, TC58NVG0S3E, and TC58TEG5DCLTA00 - hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC SPI NOR core changes: - Disable Quad Mode in spi_nor_restore(). - Don't abort BFPT parsing when QER reserved value is used. - Add support/update capabilities for few flashes. - Drop s70fl01gs flash: it does not support RDSR(05h) which is critical for erase/write. - Merge the SPIMEM DTR bits in spi-nor/next to avoid conflicts during the release cycle. SPI NOR controller drivers changes: - Move the cadence-quadspi driver to spi-mem. The series was taken through the SPI tree. Merge it also in spi-nor/next to avoid conflicts during the release cycle. - intel-spi: - Add new PCI IDs. - Ignore the Write Disable command, the controller doesn't support it. - Fix performance regression" * tag 'mtd/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (79 commits) MTD: pfow.h: drop a duplicated word MTD: mtd-abi.h: drop a duplicated word mtd: rawnand: omap_elm: Replace HTTP links with HTTPS ones mtd: Replace HTTP links with HTTPS ones mtd: hyperbus: Replace HTTP links with HTTPS ones mtd: revert "spi-nor: intel: provide a range for poll_timout" mtd: spi-nor: update read capabilities for w25q64 and s25fl064k mtd: spi-nor: micron: Add SPI_NOR_DUAL_READ flag on mt25qu02g mtd: spi-nor: macronix: Add support for mx66u2g45g mtd: spi-nor: intel-spi: Simulate WRDI command mtd: spi-nor: Disable the flash quad mode in spi_nor_restore() mtd: spi-nor: Add capability to disable flash quad mode mtd: spi-nor: spansion: Remove s70fl01gs from flash_info mtd: spi-nor: sfdp: do not make invalid quad enable fatal dt-bindings: mtd: fsl-upm-nand: Deprecate chip-delay and fsl, upm-wait-flags mtd: rawnand: stm32_fmc2: get resources from parent node mtd: rawnand: stm32_fmc2: use regmap APIs memory: stm32-fmc2-ebi: add STM32 FMC2 EBI controller driver dt-bindings: memory-controller: add STM32 FMC2 EBI controller documentation dt-bindings: mtd: update STM32 FMC2 NAND controller documentation ...
2020-08-07Merge branch 'work.misc' of ↵Linus Torvalds2-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs updates from Al Viro: "No common topic whatsoever in those, sorry" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: define inode flags using bit numbers iov_iter: Move unnecessary inclusion of crypto/hash.h dlmfs: clean up dlmfs_file_{read,write}() a bit
2020-08-07Merge tag 'nand/for-5.9' of ↵Richard Weinberger36-604/+865
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next Core changes: * Drop useless 'depends on' in Kconfig * Add an extra level in the Kconfig hierarchy * Trivial spellings * Dynamic allocation of the interface configurations * Dropping the default ONFI timing mode * Various cleanup (types, structures, naming, comments) * Hide the chip->data_interface indirection * Add the generic rb-gpios property * Add the ->choose_interface_config() hook * Introduce nand_choose_best_sdr_timings() * Use default values for tPROG_max and tBERS_max * Avoid redefining tR_max and tCCS_min * Add a helper to find the closest ONFI mode * bcm63xx MTD parsers: simplify CFE detection Raw NAND controller drivers changes: * fsl-upm: Deprecation of specific DT properties * fsl_upm: Driver rework and cleanup in favor of ->exec_op() * Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use * brcmnand: ECC error handling on EDU transfers * brcmnand: Don't default to EDU transfers * qcom: Set BAM mode only if not set already * qcom: Avoid write to unavailable register * gpio: Driver rework in favor of ->exec_op() * tango: ->exec_op() conversion * mtk: ->exec_op() conversion Raw NAND chip drivers changes: * toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4 * toshiba: Implement ->choose_interface_config() for TC58NVG0S3E * toshiba: Implement ->choose_interface_config() for TC58TEG5DCLTA00 * hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC
2020-08-04Merge tag 'uninit-macro-v5.9-rc1' of ↵Linus Torvalds4-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull uninitialized_var() macro removal from Kees Cook: "This is long overdue, and has hidden too many bugs over the years. The series has several "by hand" fixes, and then a trivial treewide replacement. - Clean up non-trivial uses of uninitialized_var() - Update documentation and checkpatch for uninitialized_var() removal - Treewide removal of uninitialized_var()" * tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: compiler: Remove uninitialized_var() macro treewide: Remove uninitialized_var() usage checkpatch: Remove awareness of uninitialized_var() macro mm/debug_vm_pgtable: Remove uninitialized_var() usage f2fs: Eliminate usage of uninitialized_var() macro media: sur40: Remove uninitialized_var() usage KVM: PPC: Book3S PR: Remove uninitialized_var() usage clk: spear: Remove uninitialized_var() usage clk: st: Remove uninitialized_var() usage spi: davinci: Remove uninitialized_var() usage ide: Remove uninitialized_var() usage rtlwifi: rtl8192cu: Remove uninitialized_var() usage b43: Remove uninitialized_var() usage drbd: Remove uninitialized_var() usage x86/mm/numa: Remove uninitialized_var() usage docs: deprecated.rst: Add uninitialized_var()
2020-08-03Merge tag 'spi-v5.9' of ↵Linus Torvalds3-1552/+0
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "A fairly quiet release for SPI, nothing really going on in the core although there's been quite a bit of driver related activity. This includes the addition of some shared code in drivers/memory for the Renesas RPC-IF which is used by a newly added SPI driver, the memory subsystem doesn't seem to have a fixed maintainer at the minute and this seemed like the most sensible way to get that hardware supported. - Quite a few cleanups and optimizations for the Altera, Qualcomm GENI, sun6i and lantiq drivers. - Several more GPIO descriptor conversions. - Move the Cadence QuadSPI driver from drivers/mtd to drivers/spi. - New support for Mediatek MT8192 and Renesas RPC-IF, R8A7742 and R8A774e1" * tag 'spi-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (119 commits) dt-bindings: lpspi: New property in document DT bindings for LPSPI spi: lpspi: fix using CS discontinuously on i.MX8DXLEVK spi: lpspi: remove unused fsl_lpspi->chipselect spi: lpspi: Fix kernel warning dump when probe fail after calling spi_register spi: rockchip: Fix error in SPI slave pio read spi: rockchip: Support 64-location deep FIFOs spi: rockchip: Config spi rx dma burst size depend on xfer length spi: spi-topcliff-pch: drop call to wakeup-disable spi: spidev: Align buffers for DMA spi: correct kernel-doc inconsistency spi: sun4i: update max transfer size reported spi: imx: enable runtime pm support spi: update bindings for MT8192 SoC spi: mediatek: add spi support for mt8192 IC spi: Add bindings for Lightning Mountain SoC spi: lantiq: Add support to Lightning Mountain SoC spi: lantiq: Move interrupt configuration to SoC specific data structure spi: lantiq: Add fifo size bit mask in SoC specific data structure spi: lantiq: Add support to acknowledge interrupt spi: lantiq: Move interrupt control register offesets to SoC specific data structure ...
2020-08-02ubi: fastmap: Free fastmap next anchor peb during detachZhihao Cheng1-0/+5
ubi_wl_entry related with the fm_next_anchor PEB is not freed during detach, which causes a memory leak. Don't forget to release fm_next_anchor PEB while detaching ubi from mtd when CONFIG_MTD_UBI_FASTMAP is enabled. Signed-off-by: Zhihao Cheng <[email protected]> Fixes: 4b68bf9a69d22d ("ubi: Select fastmap anchor PEBs considering...") Signed-off-by: Richard Weinberger <[email protected]>
2020-08-02ubi: fastmap: Don't produce the initial next anchor PEB when fastmap is disabledZhihao Cheng1-1/+2
Following process triggers a memleak caused by forgetting to release the initial next anchor PEB (CONFIG_MTD_UBI_FASTMAP is disabled): 1. attach -> __erase_worker -> produce the initial next anchor PEB 2. detach -> ubi_fastmap_close (Do nothing, it should have released the initial next anchor PEB) Don't produce the initial next anchor PEB in __erase_worker() when fastmap is disabled. Signed-off-by: Zhihao Cheng <[email protected]> Suggested-by: Sascha Hauer <[email protected]> Fixes: f9c34bb529975fe ("ubi: Fix producing anchor PEBs") Reported-by: [email protected] Signed-off-by: Richard Weinberger <[email protected]>
2020-08-02mtd: rawnand: omap_elm: Replace HTTP links with HTTPS onesAlexander A. Klimov1-1/+1
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2020-08-02mtd: Replace HTTP links with HTTPS onesAlexander A. Klimov3-3/+3
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2020-08-02mtd: hyperbus: Replace HTTP links with HTTPS onesAlexander A. Klimov2-2/+2
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2020-08-02Merge tag 'spi-nor/for-5.9' of ↵Richard Weinberger12-1584/+71
https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next SPI NOR core changes: - Disable Quad Mode in spi_nor_restore(). - Don't abort BFPT parsing when QER reserved value is used. - Add support/update capabilities for few flashes. - Drop s70fl01gs flash: it does not support RDSR(05h) which is critical for erase/write. - Merge the SPIMEM DTR bits in spi-nor/next to avoid conflicts during the release cycle. SPI NOR controller drivers changes: - Move the cadence-quadspi driver to spi-mem. The series was taken through the SPI tree. Merge it also in spi-nor/next to avoid conflicts during the release cycle. - intel-spi: - Add new PCI IDs. - Ignore the Write Disable command, the controller doesn't support it. - Fix performance regression.
2020-07-29Merge remote-tracking branch 'spi/for-5.9' into spi-nextMark Brown3-1552/+0
2020-07-28mtd: revert "spi-nor: intel: provide a range for poll_timout"Luis Alberto Herrera1-2/+2
This change reverts aba3a882a178: "mtd: spi-nor: intel: provide a range for poll_timout". That change introduces a performance regression when reading sequentially from flash. Logging calls to intel_spi_read without this change we get: Start MTD read [ 20.045527] intel_spi_read(from=1800000, len=400000) [ 20.045527] intel_spi_read(from=1800000, len=400000) [ 282.199274] intel_spi_read(from=1c00000, len=400000) [ 282.199274] intel_spi_read(from=1c00000, len=400000) [ 544.351528] intel_spi_read(from=2000000, len=400000) [ 544.351528] intel_spi_read(from=2000000, len=400000) End MTD read With this change: Start MTD read [ 21.942922] intel_spi_read(from=1c00000, len=400000) [ 21.942922] intel_spi_read(from=1c00000, len=400000) [ 23.784058] intel_spi_read(from=2000000, len=400000) [ 23.784058] intel_spi_read(from=2000000, len=400000) [ 25.625006] intel_spi_read(from=2400000, len=400000) [ 25.625006] intel_spi_read(from=2400000, len=400000) End MTD read Signed-off-by: Luis Alberto Herrera <[email protected]> Tested-by: Alexander Sverdlin <[email protected]> Acked-by: Mika Westerberg <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Tudor Ambarus <[email protected]>
2020-07-27mtd: spi-nor: update read capabilities for w25q64 and s25fl064kRayagonda Kokatanur2-2/+4
Both w25q64 and s25fl064k nor flash support QUAD and DUAL read command, hence update the same in flash_info table. This is tested on Broadcom Stingray SoC (bcm958742t). s25fl064k and w25q64 share the same JEDEC ID. The search alg will return the first hit, so s25fl064k even for the winbond parts. We should differentiate between these flashes, but it's not in the scope of this patch. Related discussion at: Link: https://lore.kernel.org/patchwork/patch/628090/ Signed-off-by: Rayagonda Kokatanur <[email protected]> Link: https://lore.kernel.org/r/[email protected] [[email protected]: Update commit message and indicate that s25fl064k and w25q64 share the same JEDEC ID] Signed-off-by: Tudor Ambarus <[email protected]>
2020-07-27mtd: spi-nor: micron: Add SPI_NOR_DUAL_READ flag on mt25qu02gDavid Clear1-2/+2
The Micron mt25qu02g supports both x2 and x4 transactions. Add the SPI_NOR_DUAL_READ flag to its spi_nor_ids[] table entry. Tested on Pensando SoC hardware with a cadence quadspi controller via drivers/spi/spi-cadence-quadspi.c, in x2 mode at 50MHz. - random data write, erase, read - verified erase operations - random data write, read/compare - verified write/read operations Signed-off-by: David Clear <[email protected]> Acked-by: Shannon Nelson <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Tudor Ambarus <[email protected]>
2020-07-27mtd: spi-nor: macronix: Add support for mx66u2g45gDavid Clear1-0/+3
The Macronix mx66u2g45g is a 1.8V, 2Gbit (256MB) device that supports x1, x2, or x4 operation. Tested on Pensando SoC hardware with a cadence quadspi controller via drivers/spi/spi-cadence-quadspi.c, in x2 mode at 50MHz. - random data write, erase, read - verified erase operations - random data write, read/compare - verified write/read operations Signed-off-by: David Clear <[email protected]> Acked-by: Shannon Nelson <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Tudor Ambarus <[email protected]>
2020-07-27mtd: spi-nor: intel-spi: Simulate WRDI commandAlexander Sverdlin1-0/+9
After spi_nor_write_disable() return code checks were introduced in the spi-nor front end intel-spi backend stopped to work because WRDI was never supported and always failed. Just pretend it was sucessful and ignore the command itself. HW sequencer shall do the right thing automatically, while with SW sequencer we cannot do it anyway, because the only tool we had was preopcode and it makes no sense for WRDI. Fixes: bce679e5ae3a ("mtd: spi-nor: Check for errors after each Register Operation") Signed-off-by: Alexander Sverdlin <[email protected]> Reviewed-by: Mika Westerberg <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Tudor Ambarus <[email protected]>
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