diff options
| author | Colin Foster <colin.foster@in-advantage.com> | 2022-02-10 07:04:51 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-02-10 11:44:41 -0800 |
| commit | 7fbf6795d127a3b1bb39b0e42579904cf6db1624 (patch) | |
| tree | d0cb98a9fa64a98280eeea6e5c9456ae29900f63 /samples/bpf/map_perf_test_user.c | |
| parent | c4416f5c2eb3ed48dfba265e628a6e52da962f03 (diff) | |
net: mscc: ocelot: fix mutex lock error during ethtool stats read
An ongoing workqueue populates the stats buffer. At the same time, a user
might query the statistics. While writing to the buffer is mutex-locked,
reading from the buffer wasn't. This could lead to buggy reads by ethtool.
This patch fixes the former blamed commit, but the bug was introduced in
the latter.
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Fixes: 1e1caa9735f90 ("ocelot: Clean up stats update deferred work")
Fixes: a556c76adc052 ("net: mscc: Add initial Ocelot switch support")
Reported-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/all/20220210150451.416845-2-colin.foster@in-advantage.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'samples/bpf/map_perf_test_user.c')
0 files changed, 0 insertions, 0 deletions