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xsk: Don't assume metadata is always requested in TX completion

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`compl->tx_timestam != NULL` means that the user has explicitly
requested the metadata via XDP_TX_METADATA+XDP_TX_METADATA_TIMESTAMP.

Fixes: 48eb03dd26 ("xsk: Add TX timestamp and TX checksum offload support")
Reported-by: Daniele Salvatore Albano <d.albano@gmail.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Daniele Salvatore Albano <d.albano@gmail.com>
Link: https://lore.kernel.org/bpf/20240318165427.1403313-1-sdf@google.com
This commit is contained in:
Stanislav Fomichev 2024-03-18 09:54:27 -07:00 committed by Daniel Borkmann
parent 0740b6427e
commit f6e922365f
1 changed files with 2 additions and 0 deletions
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2
include/net/xdp_sock.h
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@ -188,6 +188,8 @@ static inline void xsk_tx_metadata_complete(struct xsk_tx_metadata_compl *compl,
{
if (!compl)
return;
if (!compl->tx_timestamp)
return;
*compl->tx_timestamp = ops->tmo_fill_timestamp(priv);
}