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| author | Eric Dumazet <edumazet@google.com> | 2023-11-09 17:48:59 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-28 16:46:33 +0000 |
| commit | 9b22b6cce4d4632a5d731f8b70440fc8a2aac21d (patch) | |
| tree | 793ddaa2838458b87393f7e44fc0848f0885a1c2 /scripts/gcc-plugins/randomize_layout_plugin.c | |
| parent | 3a10f5f4702fa57f97c8ae7b04b3e719debe6394 (diff) | |
ptp: annotate data-race around q->head and q->tail
[ Upstream commit 73bde5a3294853947252cd9092a3517c7cb0cd2d ]
As I was working on a syzbot report, I found that KCSAN would
probably complain that reading q->head or q->tail without
barriers could lead to invalid results.
Add corresponding READ_ONCE() and WRITE_ONCE() to avoid
load-store tearing.
Fixes: d94ba80ebbea ("ptp: Added a brand new class driver for ptp clocks.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/20231109174859.3995880-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/gcc-plugins/randomize_layout_plugin.c')
0 files changed, 0 insertions, 0 deletions