From e7d2b510165fff6bedc9cca88c071ad846850c74 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Fri, 23 Sep 2022 17:39:04 +0100
Subject: net: shrink struct ubuf_info

We can benefit from a smaller struct ubuf_info, so leave only mandatory
fields and let users to decide how they want to extend it. Convert
MSG_ZEROCOPY to struct ubuf_info_msgzc and remove duplicated fields.
This reduces the size from 48 bytes to just 16.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 net/ipv6/ip6_output.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'net/ipv6/ip6_output.c')

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index a60176e913a8..e19507614f64 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1567,7 +1567,7 @@ emsgsize:
 				paged = true;
 				zc = true;
 			} else {
-				uarg->zerocopy = 0;
+				uarg_to_msgzc(uarg)->zerocopy = 0;
 				skb_zcopy_set(skb, uarg, &extra_uref);
 			}
 		}
-- 
cgit