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| author | Breno Leitao <leitao@debian.org> | 2024-11-18 14:15:17 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-11-19 06:01:36 +0300 |
| commit | c69c5e10adb903ae2438d4f9c16eccf43d1fcbc1 (patch) | |
| tree | 140b123af80f627f6414393f259937b9f85ea135 /tools/testing/selftests/bpf/prog_tests/sockmap_basic.c | |
| parent | 4262bacb748fdab129dfbe1e93af75119a9c2775 (diff) | |
| download | linux-c69c5e10adb903ae2438d4f9c16eccf43d1fcbc1.tar.xz | |
netpoll: Use rcu_access_pointer() in __netpoll_setup
The ndev->npinfo pointer in __netpoll_setup() is RCU-protected but is being
accessed directly for a NULL check. While no RCU read lock is held in this
context, we should still use proper RCU primitives for consistency and
correctness.
Replace the direct NULL check with rcu_access_pointer(), which is the
appropriate primitive when only checking for NULL without dereferencing
the pointer. This function provides the necessary ordering guarantees
without requiring RCU read-side protection.
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20241118-netpoll_rcu-v1-1-a1888dcb4a02@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/sockmap_basic.c')
0 files changed, 0 insertions, 0 deletions