linux/drivers/mtd, branch v5.15

mtd: rawnand: qcom: Update code word value for raw read

2021-09-14T17:36:00Z

From QPIC V2 onwards there is a separate register to read last code word "QPIC_NAND_READ_LOCATION_LAST_CW_n". qcom_nandc_read_cw_raw() is used to read only one code word at a time. If we will configure number of code words to 1 in in QPIC_NAND_DEV0_CFG0 register then QPIC controller thinks its reading the last code word, since from QPIC V2 onwards we are having separate register to read the last code word, we have to configure "QPIC_NAND_READ_LOCATION_LAST_CW_n" register to fetch data from controller buffer to system memory. Fixes: 503ee5aad430 ("mtd: rawnand: qcom: update last code word register") Cc: stable@kernel.org Signed-off-by: Md Sadre Alam Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/1630998357-1359-1-git-send-email-mdalam@codeaurora.org

Merge branch 'akpm' (patches from Andrew)

2021-09-08T19:55:35Z

Merge more updates from Andrew Morton: "147 patches, based on 7d2a07b769330c34b4deabeed939325c77a7ec2f. Subsystems affected by this patch series: mm (memory-hotplug, rmap, ioremap, highmem, cleanups, secretmem, kfence, damon, and vmscan), alpha, percpu, procfs, misc, core-kernel, MAINTAINERS, lib, checkpatch, epoll, init, nilfs2, coredump, fork, pids, criu, kconfig, selftests, ipc, and scripts" * emailed patches from Andrew Morton : (94 commits) scripts: check_extable: fix typo in user error message mm/workingset: correct kernel-doc notations ipc: replace costly bailout check in sysvipc_find_ipc() selftests/memfd: remove unused variable Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH configs: remove the obsolete CONFIG_INPUT_POLLDEV prctl: allow to setup brk for et_dyn executables pid: cleanup the stale comment mentioning pidmap_init(). kernel/fork.c: unexport get_{mm,task}_exe_file coredump: fix memleak in dump_vma_snapshot() fs/coredump.c: log if a core dump is aborted due to changed file permissions nilfs2: use refcount_dec_and_lock() to fix potential UAF nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group nilfs2: fix NULL pointer in nilfs_##name##_attr_release nilfs2: fix memory leak in nilfs_sysfs_create_device_group trap: cleanup trap_init() init: move usermodehelper_enable() to populate_rootfs() ...

mtd/drivers/nand: use HZ macros

2021-09-08T18:50:26Z

HZ unit conversion macros are available in units.h, use them and remove the duplicate definition. Link: https://lkml.kernel.org/r/20210816114732.1834145-10-daniel.lezcano@linaro.org Signed-off-by: Daniel Lezcano Acked-by: Miquel Raynal Reviewed-by: Andy Shevchenko Cc: Chanwoo Choi Cc: Christian Eggers Cc: Guenter Roeck Cc: Jonathan Cameron Cc: Jonathan Cameron Cc: Kyungmin Park Cc: Lars-Peter Clausen Cc: Lukasz Luba Cc: Maxime Coquelin Cc: MyungJoo Ham Cc: Peter Meerwald Cc: "Rafael J. Wysocki" Cc: Zhang Rui Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'mtd/for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

2021-09-05T17:50:12Z

Pull MTD updates from Miquel Raynal: "MTD changes: - blkdevs: - Simplify the refcounting in blktrans_{open, release} - Simplify blktrans_getgeo - Remove blktrans_ref_mutex - Simplify blktrans_dev_get - Use lockdep_assert_held - Don't hold del_mtd_blktrans_dev in blktrans_{open, release} - ftl: - Don't cast away the type when calling add_mtd_blktrans_dev - Don't cast away the type when calling add_mtd_blktrans_dev - Use container_of() rather than cast - Fix use-after-free - Add discard support - Allow use of MTD_RAM for testing purposes - concat: - Check _read, _write callbacks existence before assignment - Judge callback existence based on the master - maps: - Maps: remove dead MTD map driver for PMC-Sierra MSP boards - mtdblock: - Warn if added for a NAND device - Add comment about UBI block devices - Update old JFFS2 mention in Kconfig - partitions: - Redboot: convert to YAML NAND core changes: - Repair Miquel Raynal's email address in MAINTAINERS - Fix a couple of spelling mistakes in Kconfig - bbt: Skip bad blocks when searching for the BBT in NAND - Remove never changed ret variable Raw NAND changes: - cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()' - intel: Fix error handling in probe - omap: Fix kernel doc warning on 'calcuate' typo - gpmc: Fix the ECC bytes vs. OOB bytes equation SPI-NAND core changes: - Properly fill the OOB area. - Fix comment SPI-NAND drivers changes: - macronix: Add Quad support for serial NAND flash" * tag 'mtd/for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (30 commits) mtd: rawnand: cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()' mtd_blkdevs: simplify the refcounting in blktrans_{open, release} mtd_blkdevs: simplify blktrans_getgeo mtd_blkdevs: remove blktrans_ref_mutex mtd_blkdevs: simplify blktrans_dev_get mtd/rfd_ftl: don't cast away the type when calling add_mtd_blktrans_dev mtd/ftl: don't cast away the type when calling add_mtd_blktrans_dev mtd_blkdevs: use lockdep_assert_held mtd_blkdevs: don't hold del_mtd_blktrans_dev in blktrans_{open, release} mtd: rawnand: intel: Fix error handling in probe mtd: mtdconcat: Check _read, _write callbacks existence before assignment mtd: mtdconcat: Judge callback existence based on the master mtd: maps: remove dead MTD map driver for PMC-Sierra MSP boards mtd: rfd_ftl: use container_of() rather than cast mtd: rfd_ftl: fix use-after-free mtd: rfd_ftl: add discard support mtd: rfd_ftl: allow use of MTD_RAM for testing purposes mtdblock: Warn if added for a NAND device mtd: spinand: macronix: Add Quad support for serial NAND flash mtdblock: Add comment about UBI block devices ...

Merge tag 'nand/for-5.15' into mtd/next

2021-09-02T22:04:16Z

NAND core changes: * Repair Miquel Raynal's email address in MAINTAINERS * Fix a couple of spelling mistakes in Kconfig * bbt: Skip bad blocks when searching for the BBT in NAND * Remove never changed ret variable Raw NAND changes: * cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()' * intel: Fix error handling in probe * omap: Fix kernel doc warning on 'calcuate' typo * gpmc: Fix the ECC bytes vs. OOB bytes equation SPI-NAND core changes: * Properly fill the OOB area. * Fix comment SPI-NAND drivers changes: * macronix: Add Quad support for serial NAND flash

mtd: rawnand: cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()'

2021-08-23T08:58:14Z

A successful 'init_rs_non_canonical()' call should be balanced by a corresponding 'free_rs()' call in the error handling path of the probe, as already done in the remove function. Update the error handling path accordingly. Fixes: 8c61b7a7f4d4 ("[MTD] [NAND] Use rslib for CAFÉ ECC") Signed-off-by: Christophe JAILLET Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/fd313d3fb787458bcc73189e349f481133a2cdc9.1629532640.git.christophe.jaillet@wanadoo.fr

mtd_blkdevs: simplify the refcounting in blktrans_{open, release}

2021-08-23T08:01:16Z

Always grab a reference to the mtd_blktrans_dev in ->open instead of just on the first open, and do away with the additional temporary references in ->open and ->release. Signed-off-by: Christoph Hellwig Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20210823073359.705281-9-hch@lst.de

mtd_blkdevs: simplify blktrans_getgeo

2021-08-23T08:01:13Z

No need to grab a mtd_blktrans_dev given that ->open already holds one and ->getgeo can only be called on an open disk. Signed-off-by: Christoph Hellwig Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20210823073359.705281-8-hch@lst.de

mtd_blkdevs: remove blktrans_ref_mutex

2021-08-23T08:01:11Z

blktrans_ref_mutex is not actually needed. The kref is serialized internally, and devnum assignment in add_mtd_blktrans_dev happens before the disk is added and thus any of the block_device_operations methods otherwise using it are called. It is also already serialized by the global mtd_table_mutex. Signed-off-by: Christoph Hellwig Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20210823073359.705281-7-hch@lst.de

mtd_blkdevs: simplify blktrans_dev_get

2021-08-23T08:01:09Z

->private_data is set before the disk is added and never cleared, so don't bother trying to handle a NULL pointer there. Signed-off-by: Christoph Hellwig Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20210823073359.705281-6-hch@lst.de