[INET]: Use BUILD_BUG_ON in inet_timewait_sock.c checks
Make the INET_TWDR_TWKILL_SLOTS vs sizeof(twdr->thread_slots)
check nicer.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index a60b99e..d43e787 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -194,16 +194,14 @@
EXPORT_SYMBOL_GPL(inet_twdr_hangman);
-extern void twkill_slots_invalid(void);
-
void inet_twdr_twkill_work(struct work_struct *work)
{
struct inet_timewait_death_row *twdr =
container_of(work, struct inet_timewait_death_row, twkill_work);
int i;
- if ((INET_TWDR_TWKILL_SLOTS - 1) > (sizeof(twdr->thread_slots) * 8))
- twkill_slots_invalid();
+ BUILD_BUG_ON((INET_TWDR_TWKILL_SLOTS - 1) >
+ (sizeof(twdr->thread_slots) * 8));
while (twdr->thread_slots) {
spin_lock_bh(&twdr->death_lock);