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| author | Pedro Tammela <pctammela@mojatatu.com> | 2023-07-10 23:16:34 -0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-07-12 15:59:33 -0700 |
| commit | 150e33e62c1fa4af5aaab02776b6c3812711d478 (patch) | |
| tree | d2b769621b1ba460aae88201845b2185154ce6b4 /arch/csky/kernel/stacktrace.c | |
| parent | 1e9cb763e9bacf0c932aa948f50dcfca6f519a26 (diff) | |
net/sched: make psched_mtu() RTNL-less safe
Eric Dumazet says[1]:
-------
Speaking of psched_mtu(), I see that net/sched/sch_pie.c is using it
without holding RTNL, so dev->mtu can be changed underneath.
KCSAN could issue a warning.
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Annotate dev->mtu with READ_ONCE() so KCSAN don't issue a warning.
[1] https://lore.kernel.org/all/CANn89iJoJO5VtaJ-2=_d2aOQhb0Xw8iBT_Cxqp2HyuS-zj6azw@mail.gmail.com/
v1 -> v2: Fix commit message
Fixes: d4b36210c2e6 ("net: pkt_sched: PIE AQM scheme")
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230711021634.561598-1-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/csky/kernel/stacktrace.c')
0 files changed, 0 insertions, 0 deletions