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authorEric Dumazet <edumazet@google.com>2023-02-27 09:33:36 +0100
committerJakub Kicinski <kuba@kernel.org>2023-02-27 20:59:29 +0100
commit580f98cc33a260bb8c6a39ae2921b29586b84fdf (patch)
treeef2eab5f3e3a3cd60992ce51a8b8abff49e60ab9 /tools/perf/tests/perf-record.c
parentnet: phy: c45: fix network interface initialization failures on xtensa, arm:c... (diff)
downloadlinux-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/tests/perf-record.c')
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