[PATCH 6.6 155/322] net: kcm: fix direct access to bv_len

Greg Kroah-Hartman
2024-02-03T04:13:16Z

From: Mina Almasry <almasrymina@google.com>

[ Upstream commit b15a4cfe100b9acd097d3ae7052448bd1cdc2a3b ]

Minor fix for kcm: code wanting to access the fields inside an skb
frag should use the skb_frag_*() helpers, instead of accessing the
fields directly.

Signed-off-by: Mina Almasry <almasrymina@google.com>
Link: https://lore.kernel.org/r/20240102205959.794513-1-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/kcm/kcmsock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index dd1d8ffd5f59..083376ea237e 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -634,7 +634,7 @@ static int kcm_write_msgs(struct kcm_sock *kcm)

msize = 0;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
- msize += skb_shinfo(skb)->frags[i].bv_len;
+ msize += skb_frag_size(&skb_shinfo(skb)->frags[i]);

iov_iter_bvec(&msg.msg_iter, ITER_SOURCE,
skb_shinfo(skb)->frags, skb_shinfo(skb)->nr_frags,
--
2.43.0