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Filename Latest commit message Latest commit date
Suzuki K Poulose 5511c0c309 coresight: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute 
While running the linux-next with CONFIG_DEBUG_LOCKS_ALLOC enabled,
I get the following splat.

 BUG: key ffffcb5636929298 has not been registered!
 ------------[ cut here ]------------
 DEBUG_LOCKS_WARN_ON(1)
 WARNING: CPU: 1 PID: 53 at kernel/locking/lockdep.c:3669 lockdep_init_map+0x164/0x1f0
 CPU: 1 PID: 53 Comm: kworker/1:1 Tainted: G        W         5.2.0-next-20190712-00015-g00ad4634222e-dirty #603
 Workqueue: events amba_deferred_retry_func
 pstate: 60c00005 (nZCv daif +PAN +UAO)
 pc : lockdep_init_map+0x164/0x1f0
 lr : lockdep_init_map+0x164/0x1f0

 [ trimmed ]

 Call trace:
  lockdep_init_map+0x164/0x1f0
  __kernfs_create_file+0x9c/0x158
  sysfs_add_file_mode_ns+0xa8/0x1d0
  sysfs_add_file_to_group+0x88/0xd8
  etm_perf_add_symlink_sink+0xcc/0x138
  coresight_register+0x110/0x280
  tmc_probe+0x160/0x420

 [ trimmed ]

 ---[ end trace ab4cc669615ba1b0 ]---

Fix this by initialising the dynamically allocated attribute properly.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: bb8e370bdc ("coresight: perf: Add "sinks" group to PMU directory")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
[Fixed a typograhic error in the changelog]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190801172323.18359-2-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-01 20:51:34 +02:00
arch SPDX fixes for 5.3-rc2 2019-07-28 10:00:06 -07:00
block for-linus-20190726-2 2019-07-26 19:20:34 -07:00
certs
crypto
Documentation USB fixes for 5.3-rc2 2019-07-28 09:52:35 -07:00
drivers coresight: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute 2019-08-01 20:51:34 +02:00
fs SPDX fixes for 5.3-rc2 2019-07-28 10:00:06 -07:00
include TTY fixes for 5.3-rc2 2019-07-28 10:18:33 -07:00
init
ipc
kernel Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-27 21:22:33 -07:00
lib test_firmware: fix a memory leak bug 2019-07-25 14:39:52 +02:00
LICENSES
mm mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() 2019-07-22 10:18:30 +02:00
net tcp: be more careful in tcp_fragment() 2019-07-21 20:41:24 -07:00
samples treewide: remove SPDX "WITH Linux-syscall-note" from kernel-space headers again 2019-07-25 11:05:10 +02:00
scripts Kbuild fixes for v5.3 2019-07-28 10:35:04 -07:00
security meminit fix 2019-07-28 12:33:15 -07:00
sound sound fixes for 5.3-rc2 2019-07-26 10:23:45 -07:00
tools Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-27 21:17:56 -07:00
usr kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test 2019-07-23 10:45:46 +02:00
virt Documentation: move Documentation/virtual to Documentation/virt 2019-07-24 10:52:11 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore .gitignore: Add compilation database file 2019-07-27 12:18:19 +09:00
.mailmap MAINTAINERS: Update my email address 2019-07-22 14:57:50 +01:00
COPYING
CREDITS Remove references to dead website. 2019-07-19 12:22:04 -07:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Move linux-fpga tree to new location 2019-07-30 18:32:00 +02:00
Makefile Linux 5.3-rc2 2019-07-28 12:47:02 -07:00
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.