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| author | Eric Dumazet <edumazet@google.com> | 2023-02-27 09:33:36 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-02-27 20:59:29 +0100 |
| commit | 580f98cc33a260bb8c6a39ae2921b29586b84fdf (patch) | |
| tree | ef2eab5f3e3a3cd60992ce51a8b8abff49e60ab9 /tools/perf/Documentation | |
| parent | net: phy: c45: fix network interface initialization failures on xtensa, arm:c... (diff) | |
| download | linux-580f98cc33a260bb8c6a39ae2921b29586b84fdf.tar.xz linux-580f98cc33a260bb8c6a39ae2921b29586b84fdf.zip | |
tcp: tcp_check_req() can be called from process context
This is a follow up of commit 0a375c822497 ("tcp: tcp_rtx_synack()
can be called from process context").
Frederick Lawler reported another "__this_cpu_add() in preemptible"
warning caused by the same reason.
In my former patch I took care of tcp_rtx_synack()
but forgot that tcp_check_req() also contained some SNMP updates.
Note that some parts of tcp_check_req() always run in BH context,
I added a comment to clarify this.
Fixes: 8336886f786f ("tcp: TCP Fast Open Server - support TFO listeners")
Link: https://lore.kernel.org/netdev/8cd33923-a21d-397c-e46b-2a068c287b03@cloudflare.com/T/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Frederick Lawler <fred@cloudflare.com>
Tested-by: Frederick Lawler <fred@cloudflare.com>
Link: https://lore.kernel.org/r/20230227083336.4153089-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/Documentation')
0 files changed, 0 insertions, 0 deletions