diff options
| author | Eric Dumazet <edumazet@google.com> | 2023-02-27 11:33:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 15:50:34 +0300 |
| commit | ea13db527988137ef80d4366dfc8af4ffec4fca9 (patch) | |
| tree | db5efb57ab184bb7f738daca7d2f53acbfeaea2a /drivers/tty/vt | |
| parent | a2f09b491bf36d2319a2bcac70a9c6218f006a65 (diff) | |
| download | linux-ea13db527988137ef80d4366dfc8af4ffec4fca9.tar.xz | |
tcp: tcp_check_req() can be called from process context
[ Upstream commit 580f98cc33a260bb8c6a39ae2921b29586b84fdf ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/tty/vt')
0 files changed, 0 insertions, 0 deletions