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[NET]: Add some acquires/releases sparse annotations.

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Add __acquires() and __releases() annotations to suppress some sparse
warnings.

example of warnings :

net/ipv4/udp.c:1555:14: warning: context imbalance in 'udp_seq_start' - wrong
count at exit
net/ipv4/udp.c:1571:13: warning: context imbalance in 'udp_seq_stop' -
unexpected unlock

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2008-01-01 21:58:02 -08:00
committed by David S. Miller
parent b950dfcf50
commit 9a429c4983
16 changed files with 36 additions and 0 deletions
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net/core/dev.c
+2
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@@ -2368,6 +2368,7 @@ static int dev_ifconf(struct net *net, char __user *arg)
* in detail.
*/
void *dev_seq_start(struct seq_file *seq, loff_t *pos)
__acquires(dev_base_lock)
{
struct net *net = seq_file_net(seq);
loff_t off;
@@ -2394,6 +2395,7 @@ void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
}
void dev_seq_stop(struct seq_file *seq, void *v)
__releases(dev_base_lock)
{
read_unlock(&dev_base_lock);
}