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Filename Latest commit message Latest commit date
Christophe Kerello dc1c6e6099 mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer
[ Upstream commit 513c40e59d5a414ab763a9c84797534b5e8c208d ]

Avoid below overlapping mappings by using a contiguous
non-cacheable buffer.

[    4.077708] DMA-API: stm32_fmc2_nfc 48810000.nand-controller: cacheline tracking EEXIST,
overlapping mappings aren't supported
[    4.089103] WARNING: CPU: 1 PID: 44 at kernel/dma/debug.c:568 add_dma_entry+0x23c/0x300
[    4.097071] Modules linked in:
[    4.100101] CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 6.1.82 #1
[    4.106346] Hardware name: STMicroelectronics STM32MP257F VALID1 SNOR / MB1704 (LPDDR4 Power discrete) + MB1703 + MB1708 (SNOR MB1730) (DT)
[    4.118824] Workqueue: events_unbound deferred_probe_work_func
[    4.124674] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    4.131624] pc : add_dma_entry+0x23c/0x300
[    4.135658] lr : add_dma_entry+0x23c/0x300
[    4.139792] sp : ffff800009dbb490
[    4.143016] x29: ffff800009dbb4a0 x28: 0000000004008022 x27: ffff8000098a6000
[    4.150174] x26: 0000000000000000 x25: ffff8000099e7000 x24: ffff8000099e7de8
[    4.157231] x23: 00000000ffffffff x22: 0000000000000000 x21: ffff8000098a6a20
[    4.164388] x20: ffff000080964180 x19: ffff800009819ba0 x18: 0000000000000006
[    4.171545] x17: 6361727420656e69 x16: 6c6568636163203a x15: 72656c6c6f72746e
[    4.178602] x14: 6f632d646e616e2e x13: ffff800009832f58 x12: 00000000000004ec
[    4.185759] x11: 00000000000001a4 x10: ffff80000988af58 x9 : ffff800009832f58
[    4.192916] x8 : 00000000ffffefff x7 : ffff80000988af58 x6 : 80000000fffff000
[    4.199972] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000
[    4.207128] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000812d2c40
[    4.214185] Call trace:
[    4.216605]  add_dma_entry+0x23c/0x300
[    4.220338]  debug_dma_map_sg+0x198/0x350
[    4.224373]  __dma_map_sg_attrs+0xa0/0x110
[    4.228411]  dma_map_sg_attrs+0x10/0x2c
[    4.232247]  stm32_fmc2_nfc_xfer.isra.0+0x1c8/0x3fc
[    4.237088]  stm32_fmc2_nfc_seq_read_page+0xc8/0x174
[    4.242127]  nand_read_oob+0x1d4/0x8e0
[    4.245861]  mtd_read_oob_std+0x58/0x84
[    4.249596]  mtd_read_oob+0x90/0x150
[    4.253231]  mtd_read+0x68/0xac

Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Cc: stable@vger.kernel.org
Fixes: 2cd457f328 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
[ adapted variable name from nfc to fmc2 throughout the patch ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-10-02 13:34:28 +02:00
arch KVM: x86: Take irqfds.lock when adding/deleting IRQ bypass producer 2025-09-09 18:44:00 +02:00
block block: fix 'kmem_cache of name 'bio-108' already exists' 2025-04-10 14:29:37 +02:00
certs
crypto crypto: algif_hash - fix double free in hash_accept 2025-06-04 14:32:35 +02:00
Documentation Documentation: ACPI: Fix parent device references 2025-08-28 16:21:23 +02:00
drivers mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer 2025-10-02 13:34:28 +02:00
fs fuse: prevent overflow in copy_file_range return value 2025-10-02 13:34:28 +02:00
include net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. 2025-10-02 13:34:27 +02:00
init bpfilter: match bit size of bpfilter_umh to that of the kernel 2025-07-17 18:24:51 +02:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:02:52 +01:00
kernel cpufreq/sched: Explicitly synchronize limits_changed flag handling 2025-09-09 18:44:00 +02:00
lib lib: test_objagg: Set error message in check_expect_hints_stats() 2025-07-17 18:24:56 +02:00
LICENSES
mm mm/khugepaged: fix the address passed to notifier on testing young 2025-10-02 13:34:28 +02:00
net tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. 2025-10-02 13:34:27 +02:00
samples samples: mei: Fix building on musl libc 2025-08-28 16:21:19 +02:00
scripts randstruct: gcc-plugin: Fix attribute addition 2025-09-09 18:44:01 +02:00
security securityfs: don't pin dentries twice, once is enough... 2025-08-28 16:21:24 +02:00
sound ALSA: hda/hdmi: Add pin fix for another HP EliteDesk 800 G4 model 2025-09-09 18:44:01 +02:00
tools act_mirred: use the backlog for nested calls to mirred ingress 2025-08-28 16:21:36 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-07-17 18:24:51 +02:00
virt KVM: arm64: Ignore PMCNTENSET_EL0 while checking for overflow status 2024-12-19 18:05:04 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS platform: Add Surface platform directory 2025-06-27 11:02:56 +01:00
Makefile Linux 5.4.299 2025-09-09 18:44:02 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.