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af_packet: fix sparse warning

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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 <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael S. Tsirkin 2014-11-24 13:32:16 +02:00 committed by David S. Miller
parent 2dd34339ac
commit 6e58040b84
1 changed files with 1 additions and 1 deletions
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2
net/packet/af_packet.c
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@ -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);