From 2803d02aa7a18f42db0bbcd42210e0e7ccf060ec Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 22 Jan 2026 04:57:17 +0000 Subject: gro: change the BUG_ON() in gro_pull_from_frag0() [ Upstream commit cbe41362be2c27e0237a94a404ae413cec9c2ad9 ] Replace the BUG_ON() which never fired with a DEBUG_NET_WARN_ON_ONCE() $ scripts/bloat-o-meter -t vmlinux.1 vmlinux.2 add/remove: 2/2 grow/shrink: 1/1 up/down: 370/-254 (116) Function old new delta gro_try_pull_from_frag0 - 196 +196 napi_gro_frags 771 929 +158 __pfx_gro_try_pull_from_frag0 - 16 +16 __pfx_gro_pull_from_frag0 16 - -16 dev_gro_receive 1514 1464 -50 gro_pull_from_frag0 188 - -188 Total: Before=22565899, After=22566015, chg +0.00% Signed-off-by: Eric Dumazet Link: https://patch.msgid.link/20260122045720.1221017-3-edumazet@google.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- net/core/gro.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net') diff --git a/net/core/gro.c b/net/core/gro.c index 40aaac4e04f3..ac498c9f82cf 100644 --- a/net/core/gro.c +++ b/net/core/gro.c @@ -416,7 +416,7 @@ static void gro_pull_from_frag0(struct sk_buff *skb, int grow) { struct skb_shared_info *pinfo = skb_shinfo(skb); - BUG_ON(skb->end - skb->tail < grow); + DEBUG_NET_WARN_ON_ONCE(skb->end - skb->tail < grow); memcpy(skb_tail_pointer(skb), NAPI_GRO_CB(skb)->frag0, grow); -- cgit v1.2.3