kernel/linux.git/include/linux/spi, branch master

spi: fix resource leaks on device setup failure

2026-04-22T14:10:22+00:00

Johan Hovold says: Make sure to call controller cleanup() if spi_setup() fails while registering a device to avoid leaking any resources allocated by setup().

spi: fix controller cleanup() documentation

2026-04-22T14:10:18+00:00

The controller cleanup() callback is no longer called when releasing a device, but rather when deregistering it (and on registration failures). Fixes: c7299fea6769 ("spi: Fix spi device unregister flow") Cc: Saravana Kannan Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260410154907.129248-3-johan@kernel.org Signed-off-by: Mark Brown

spi: Fix the error description in the `ptp_sts_word_post` comment

2026-04-21T15:02:45+00:00

Based on the comment information, the description within the `ptp_sts_word_post` section should be changed to "See @ptp_sts_word_pre". Signed-off-by: Dewei Meng Link: https://patch.msgid.link/20260421025808.6572-1-mengdewei@cqsoftware.com.cn Signed-off-by: Mark Brown

spi: spi-mem: Add a packed command operation

2026-04-11T10:53:54+00:00

Instead of repeating the command opcode twice, some flash devices try to pack command and address bits. In this case, the second opcode byte being sent (LSB) is free to be used. The input data must be ANDed to only provide the relevant bits. Signed-off-by: Miquel Raynal Link: https://patch.msgid.link/20260410-winbond-6-19-rc1-oddr-v1-2-2ac4827a3868@bootlin.com Signed-off-by: Mark Brown

Add Renesas RZ/G3L RSPI support

2026-04-08T14:57:55+00:00

Biju says: This patch series adds binding and driver support for RSPI IP found on the RZ/G3L SoC. The RSPI is compatible with RZ/V2H RSPI, but has 2 clocks compared to 3 on RZ/V2H. Link: https://patch.msgid.link/20260408085418.18770-1-biju.das.jz@bp.renesas.com

spi: use generic driver_override infrastructure

2026-03-24T15:00:08+00:00

When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1] Also note that we do not enable the driver_override feature of struct bus_type, as SPI - in contrast to most other buses - passes "" to sysfs_emit() when the driver_override pointer is NULL. Thus, printing "\n" instead of "(null)\n". Link: https://lore.kernel.org/driver-core/DGRGTIRHA62X.3RY09D9SOK77P@kernel.org/ [1] Reported-by: Gui-Dong Han Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220789 Fixes: 5039563e7c25 ("spi: Add driver_override SPI device attribute") Signed-off-by: Danilo Krummrich Link: https://patch.msgid.link/20260324005919.2408620-12-dakr@kernel.org Signed-off-by: Mark Brown

spi: spi-mem: clean up kernel-doc in spi-mem.h

2026-03-01T16:08:12+00:00

Eliminate all kernel-doc warnings in spi-mem.h: - add missing struct member descriptions - don't use "struct" for function descrptions Warning: include/linux/spi/spi-mem.h:202 struct member 'cmd' not described in 'spi_mem_op' Warning: include/linux/spi/spi-mem.h:202 struct member 'addr' not described in 'spi_mem_op' Warning: include/linux/spi/spi-mem.h:202 struct member 'dummy' not described in 'spi_mem_op' Warning: include/linux/spi/spi-mem.h:202 struct member 'data' not described in 'spi_mem_op' Warning: include/linux/spi/spi-mem.h:286 Incorrect use of kernel-doc format: * struct spi_mem_get_drvdata() - get driver private data attached to a SPI mem Warning: include/linux/spi/spi-mem.h:298 Incorrect use of kernel-doc format: * struct spi_controller_mem_ops - SPI memory operations Warning: include/linux/spi/spi-mem.h:362 expecting prototype for struct spi_mem_set_drvdata. Prototype was for struct spi_controller_mem_ops instead Signed-off-by: Randy Dunlap Link: https://patch.msgid.link/20260301014743.3133167-1-rdunlap@infradead.org Signed-off-by: Mark Brown

spi: add devm_spi_new_ancillary_device()

2026-02-24T17:41:42+00:00

Add a devres-managed version of spi_new_ancillary_device() that automatically unregisters the ancillary SPI device when the parent device is removed. This follows the same devm_add_action_or_reset() pattern used by the other managed SPI functions (devm_spi_optimize_message, devm_spi_register_controller, etc.) and eliminates the need for drivers to open-code their own devm cleanup callbacks for ancillary devices. Acked-by: Nuno Sá Signed-off-by: Antoniu Miclaus Link: https://patch.msgid.link/20260223162110.156746-3-antoniu.miclaus@analog.com Signed-off-by: Mark Brown

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

Merge tag 'mtd/for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

2026-02-13T23:06:58+00:00

Pull MTD updates from Miquel Raynal: "MTD: - prioritize ofpart in physmap-core probing - conversions to scoped for each OF child loops Bindings: - The bulk of the changes consists of binding fixes/updates to restrict the use of undefined properties, which was mostly ineffective in the current form because of the nesting of partition nodes and the lack of compatible strings - YAML conversions and the addition of a dma-coherent property in the cdns,hp-nfc driver SPI NAND: - support for octal DTR modes (8D-8D-8D) - support for Foresee F35SQB002G chips And small misc fixes" * tag 'mtd/for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (65 commits) mtd: spi-nor: hisi-sfc: fix refcounting bug in hisi_spi_nor_register_all() mtd: spinand: fix NULL pointer dereference in spinand_support_vendor_ops() mtd: rawnand: pl353: Add message about ECC mode mtd: rawnand: pl353: Fix software ECC support mtd: spinand: winbond: Remove unneeded semicolon dt-bindings: mtd: cdns,hp-nfc: Add dma-coherent property mtd: spinand: Disable continuous read during probe mtd: spinand: add Foresee F35SQB002G flash support mtd: spinand: winbond: W35N octal DTR support mtd: spinand: Add octal DTR support mtd: spinand: Warn if using SSDR-only vendor commands in a non SSDR mode mtd: spinand: Give the bus interface to the configuration helper mtd: spinand: Propagate the bus interface across core helpers mtd: spinand: Add support for setting a bus interface mtd: spinand: Gather all the bus interface steps in one single function mtd: spinand: winbond: Configure the IO mode after the dummy cycles mtd: spinand: winbond: Rename IO_MODE register macro mtd: spinand: winbond: Fix style mtd: spinand: winbond: Register W35N vendor specific operation mtd: spinand: winbond: Register W25N vendor specific operation ...