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Michael Walle 31d60f5282 mtd: core: provide unique name for nvmem device [ Upstream commit `c048b60d39` ] If there is more than one mtd device which supports OTP, there will be a kernel warning about duplicated sysfs entries and the probing will fail. This is because the nvmem device name is not unique. Make it unique by prepending the name of the mtd. E.g. before the name was "user-otp", now it will be "mtd0-user-otp". For reference the kernel splash is: [ 4.665531] sysfs: cannot create duplicate filename '/bus/nvmem/devices/user-otp' [ 4.673056] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.0-next-20211101+ #1296 [ 4.680565] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT) [ 4.688856] Call trace: [ 4.691303] dump_backtrace+0x0/0x1bc [ 4.694984] show_stack+0x24/0x30 [ 4.698306] dump_stack_lvl+0x68/0x84 [ 4.701980] dump_stack+0x18/0x34 [ 4.705302] sysfs_warn_dup+0x70/0x90 [ 4.708973] sysfs_do_create_link_sd+0x144/0x150 [ 4.713603] sysfs_create_link+0x2c/0x50 [ 4.717535] bus_add_device+0x74/0x120 [ 4.721293] device_add+0x330/0x890 [ 4.724791] device_register+0x2c/0x40 [ 4.728550] nvmem_register+0x240/0x9f0 [ 4.732398] mtd_otp_nvmem_register+0xb0/0x10c [ 4.736854] mtd_device_parse_register+0x28c/0x2b4 [ 4.741659] spi_nor_probe+0x20c/0x2e0 [ 4.745418] spi_mem_probe+0x78/0xbc [ 4.749001] spi_probe+0x90/0xf0 [ 4.752237] really_probe.part.0+0xa4/0x320 .. [ 4.873936] mtd mtd1: Failed to register OTP NVMEM device [ 4.894468] spi-nor: probe of spi0.0 failed with error -17 Fixes: `4b361cfa86` ("mtd: core: add OTP nvmem provider support") Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20211104134843.2642800-1-michael@walle.cc Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-01-27 11:03:26 +01:00
arch	arm64: dts: ti: k3-j7200: Correct the d-cache-sets info	2022-01-27 11:03:25 +01:00
block	bfq: Do not let waker requests skip proper accounting	2022-01-27 11:03:18 +01:00
certs	certs: Add support for using elliptic curve keys for signing modules	2021-08-23 19:55:42 +03:00
crypto	crypto: pcrypt - Delay write to padata->info	2021-11-18 19:16:44 +01:00
Documentation	Input: i8042 - add deferred probe support	2022-01-05 12:42:32 +01:00
drivers	mtd: core: provide unique name for nvmem device	2022-01-27 11:03:26 +01:00
fs	fs: dlm: fix build with CONFIG_IPV6 disabled	2022-01-27 11:03:13 +01:00
include	cgroup: Trace event cgroup id fields should be u64	2022-01-27 11:03:23 +01:00
init	init: make unknown command line param message clearer	2021-11-18 19:17:11 +01:00
ipc	shm: extend forced shm destroy to support objects from several IPC nses	2021-11-25 09:48:42 +01:00
kernel	dma/pool: create dma atomic pool only if dma zone has managed pages	2022-01-27 11:03:00 +01:00
lib	siphash: use _unaligned version by default	2021-12-08 09:04:47 +01:00
LICENSES	LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"	2021-07-15 06:31:24 -06:00
mm	shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode	2022-01-27 11:03:01 +01:00
net	netfilter: bridge: add support for pppoe filtering	2022-01-27 11:03:22 +01:00
samples	ftrace/samples: Add missing prototypes direct functions	2022-01-11 15:35:13 +01:00
scripts	recordmcount.pl: fix typo in s390 mcount regex	2022-01-05 12:42:33 +01:00
security	selinux: initialize proto variable in selinux_ip_postroute_compat()	2022-01-05 12:42:34 +01:00
sound	ALSA: core: Fix SSID quirk lookup for subvendor=0	2022-01-27 11:02:47 +01:00
tools	libbpf: Clean gen_loader's attach kind.	2022-01-27 11:03:24 +01:00
usr	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
virt	KVM: downgrade two BUG_ONs to WARN_ON_ONCE	2021-12-22 09:32:34 +01:00
.clang-format	clang-format: Update with the latest for_each macro list	2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore	.gitignore: ignore only top-level modules.builtin	2021-05-02 00:43:35 +09:00
.mailmap	mailmap: add Andrej Shadura	2021-10-18 20:22:03 -10:00
COPYING
CREDITS	MAINTAINERS: Move Daniel Drake to credits	2021-09-21 08:34:58 +03:00
Kbuild
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	drm fixes for 5.15 final	2021-10-28 12:17:01 -07:00
Makefile	Linux 5.15.16	2022-01-20 09:13:16 +01:00
README

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.