diff options
| author | Eric Dumazet <edumazet@google.com> | 2026-08-12 08:54:39 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-08-17 10:27:48 -0700 |
| commit | 0c6c32a8c854e570998494b8368d314d526ddbd3 (patch) | |
| tree | cff3777bad39a4f4e9a6342bd8e90bfe79bd570d /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | 21ef2d065ad3f0cfbf2ae51260bf962a9fa2c643 (diff) | |
net: add READ_ONCE()/WRITE_ONCE() annotations for dev->num_tc
Several fast-path and control-path lockless readers access dev->num_tc
(e.g., skb_tx_hash(), netdev_txq_to_tc(), netdev_get_num_tc(), and
qdisc/driver lookups) while concurrent writers update dev->num_tc
during TC setup, device reset, or channel configuration.
Add READ_ONCE() and WRITE_ONCE() annotations to prevent compiler
reordering and load/store tearing when accessing dev->num_tc.
Update inline helpers in netdevice.h (netdev_get_num_tc(),
netdev_set_prio_tc_map(), and netdev_get_sb_channel()) as well as
writers and lockless readers in core networking code and drivers.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260812085440.3917924-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions