linux-kernel - [PATCH] net/core: fix wrong return value in __splice

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Message-ID: <20250723063119.24059-1-hept.hept.hept@gmail.com>
Date: Wed, 23 Jul 2025 14:31:19 +0800
From: Pengtao He <hept.hept.hept@...il.com>
To: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Willem de Bruijn <willemb@...gle.com>,
	Mina Almasry <almasrymina@...gle.com>,
	Jason Xing <kerneljasonxing@...il.com>,
	Michal Luczaj <mhal@...x.co>,
	Eric Biggers <ebiggers@...gle.com>,
	Alexander Lobakin <aleksander.lobakin@...el.com>
Cc: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Pengtao He <hept.hept.hept@...il.com>
Subject: [PATCH] net/core: fix wrong return value in __splice_segment

Return true immediately when the last segment is processed,
without waiting for the next segment.

Signed-off-by: Pengtao He <hept.hept.hept@...il.com>
---
 net/core/skbuff.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ee0274417948..cc3339ab829a 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3114,6 +3114,9 @@ static bool __splice_segment(struct page *page, unsigned int poff,
 		*len -= flen;
 	} while (*len && plen);
 
+	if (!*len)
+		return true;
+
 	return false;
 }
 
-- 
2.49.0