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Date:	Mon, 24 Nov 2014 13:32:16 +0200
From:	"Michael S. Tsirkin" <>
Cc:	"David S. Miller" <>,
	Daniel Borkmann <>,
	Eric Dumazet <>,
	Atzm Watanabe <>,
	Hannes Frederic Sowa <>,
	Tom Herbert <>,
Subject: [PATCH] af_packet: fix sparse warning

af_packet produces lots of these:
	net/packet/af_packet.c:384:39: warning: incorrect type in return expression (different modifiers)
	net/packet/af_packet.c:384:39:    expected struct page [pure] *
	net/packet/af_packet.c:384:39:    got struct page *

this seems to be because sparse does not realize that _pure
refers to function, not the returned pointer.

Tweak code slightly to avoid the warning.

Signed-off-by: Michael S. Tsirkin <>
 net/packet/af_packet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index d4a877e..586229a 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -378,7 +378,7 @@ static void unregister_prot_hook(struct sock *sk, bool sync)
 		__unregister_prot_hook(sk, sync);
-static inline __pure struct page *pgv_to_page(void *addr)
+static inline struct page * __pure pgv_to_page(void *addr)
 	if (is_vmalloc_addr(addr))
 		return vmalloc_to_page(addr);
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