diff options
| author | Keita Morisaki <kmta1236@gmail.com> | 2026-03-07 14:16:19 +0900 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-09 18:49:38 -0700 |
| commit | 8ca8eb05767395cd2fd0db12e052ca0bc5d1597c (patch) | |
| tree | cdb35e6c247bb9dde45878af41bfa4014749c59d | |
| parent | 2ed4b46b4fc77749cb0f8dd31a01441b82c8dbaa (diff) | |
| download | linux-8ca8eb05767395cd2fd0db12e052ca0bc5d1597c.tar.gz linux-8ca8eb05767395cd2fd0db12e052ca0bc5d1597c.zip | |
tcp: remove unused hash_size from struct tcp_out_options
hash_size is declared but never read. The MD5 path always uses a
fixed size of 16, and the TCP-AO path uses tcp_ao_maclen().
This closes a 7-byte hole and reduces the struct size from 96 to
88 bytes.
Suggested-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Keita Morisaki <kmta1236@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260307051619.51685-1-kmta1236@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/ipv4/tcp_output.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index f0ebcc7e2871..4377b3673da9 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -441,7 +441,6 @@ struct tcp_out_options { u8 ws; /* window scale, 0 to disable */ u8 num_accecn_fields:7, /* number of AccECN fields needed */ use_synack_ecn_bytes:1; /* Use synack_ecn_bytes or not */ - u8 hash_size; /* bytes in hash_location */ __u8 *hash_location; /* temporary pointer, overloaded */ __u32 tsval, tsecr; /* need to include OPTION_TS */ struct tcp_fastopen_cookie *fastopen_cookie; /* Fast open cookie */ |