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socket: SOCK_DEBUG type checking

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Use the inline trick (same as pr_debug) to get checking of debug
statements even if no code is generated.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2008-03-21 15:54:53 -07:00 committed by David S. Miller
parent 28518fc170
commit 4cd9029d25
1 changed files with 5 additions and 1 deletions
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6
include/net/sock.h
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@ -70,7 +70,11 @@
#define SOCK_DEBUG(sk, msg...) do { if ((sk) && sock_flag((sk), SOCK_DBG)) \
printk(KERN_DEBUG msg); } while (0)
#else
#define SOCK_DEBUG(sk, msg...) do { } while (0)
/* Validate arguments and do nothing */
static void inline int __attribute__ ((format (printf, 2, 3)))
SOCK_DEBUG(struct sock *sk, const char *msg, ...)
{
}
#endif
/* This is the per-socket lock. The spinlock provides a synchronization