xsk: Skip polling event check for unbound socket

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[ Upstream commit e4d008d49a ]

In xsk_poll(), checking available events and setting mask bits should
be executed only when a socket has been bound. Setting mask bits for
unbound socket is meaningless.

Currently, it checks events even when xsk_check_common() failed.
To prevent this, we move goto location (skip_tx) after that checking.

Fixes: 1596dae2f1 ("xsk: check IFF_UP earlier in Tx path")
Signed-off-by: Yewon Choi <woni9911@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20231201061048.GA1510@libra05
Signed-off-by: Sasha Levin <sashal@kernel.org>

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This commit is contained in:

Yewon Choi 2023-12-01 15:10:52 +09:00 • committed by Greg Kroah-Hartman

parent ed7e211b67

commit 2c0cbb97b1

1 changed files with 2 additions and 3 deletions

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net/xdp/xsk.c

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