aboutsummaryrefslogtreecommitdiff
path: root/tools/perf/scripts/python/check-perf-trace.py
diff options
context:
space:
mode:
authorYueHaibing <[email protected]>2019-03-07 16:26:36 -0800
committerLinus Torvalds <[email protected]>2019-03-07 18:31:59 -0800
commit4169680e9f7cdbf893f8885611b3235aeda94224 (patch)
tree872f4d1ec79495af4f8d0739b78b4a69c1ba80ca /tools/perf/scripts/python/check-perf-trace.py
parentc461aed3a423dda442aad38047c3f2bb0f9e2012 (diff)
kernel/panic.c: taint: fix debugfs_simple_attr.cocci warnings
Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE for debugfs files. Semantic patch information: Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file() imposes some significant overhead as compared to DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe(). Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci The _unsafe() part suggests that some of them "safeness responsibilities" are now panic.c responsibilities. The patch is OK since panic's clear_warn_once_fops struct file_operations is safe against removal, so we don't have to use otherwise necessary debugfs_file_get()/debugfs_file_put(). [[email protected]: changelog addition] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: YueHaibing <[email protected]> Reviewed-by: Sergey Senozhatsky <[email protected]> Cc: Kees Cook <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Steven Rostedt (VMware) <[email protected]> Cc: Petr Mladek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions