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| author | Eric Dumazet <edumazet@google.com> | 2024-12-03 17:36:17 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-12-04 19:20:52 -0800 |
| commit | 5204ccbfa22358f95afd031a3f337e6d9a74baea (patch) | |
| tree | 2efa2809a56854b7428a89644c723f0ceb4ad06a /net/ipv4 | |
| parent | Merge branch 'net-add-negotiation-of-in-band-capabilities' (diff) | |
| download | linux-5204ccbfa22358f95afd031a3f337e6d9a74baea.tar.gz linux-5204ccbfa22358f95afd031a3f337e6d9a74baea.zip | |
inet: add indirect call wrapper for getfrag() calls
UDP send path suffers from one indirect call to ip_generic_getfrag()
We can use INDIRECT_CALL_1() to avoid it.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Brian Vazquez <brianvv@google.com>
Link: https://patch.msgid.link/20241203173617.2595451-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_output.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 0065b1996c94..a59204a8d850 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1169,7 +1169,10 @@ alloc_new_skb: /* [!] NOTE: copy will be negative if pagedlen>0 * because then the equation reduces to -fraggap. */ - if (copy > 0 && getfrag(from, data + transhdrlen, offset, copy, fraggap, skb) < 0) { + if (copy > 0 && + INDIRECT_CALL_1(getfrag, ip_generic_getfrag, + from, data + transhdrlen, offset, + copy, fraggap, skb) < 0) { err = -EFAULT; kfree_skb(skb); goto error; @@ -1213,8 +1216,9 @@ alloc_new_skb: unsigned int off; off = skb->len; - if (getfrag(from, skb_put(skb, copy), - offset, copy, off, skb) < 0) { + if (INDIRECT_CALL_1(getfrag, ip_generic_getfrag, + from, skb_put(skb, copy), + offset, copy, off, skb) < 0) { __skb_trim(skb, off); err = -EFAULT; goto error; @@ -1252,7 +1256,8 @@ alloc_new_skb: get_page(pfrag->page); } copy = min_t(int, copy, pfrag->size - pfrag->offset); - if (getfrag(from, + if (INDIRECT_CALL_1(getfrag, ip_generic_getfrag, + from, page_address(pfrag->page) + pfrag->offset, offset, copy, skb->len, skb) < 0) goto error_efault; |