From: Pavel Emelyanov Date: Sun, 11 Nov 2007 05:48:54 +0000 (-0800) Subject: [INET]: Cleanup the xfrm4_tunnel_(un)register X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=358352b8b83c67ecf75f6d7bc3e2d64bf0cf506a;p=openwrt%2Fstaging%2Fblogic.git [INET]: Cleanup the xfrm4_tunnel_(un)register Both check for the family to select an appropriate tunnel list. Consolidate this check and make the for() loop more readable. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller --- diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c index d619d2e83f5d..978b3fd61e65 100644 --- a/net/ipv4/tunnel4.c +++ b/net/ipv4/tunnel4.c @@ -17,6 +17,11 @@ static struct xfrm_tunnel *tunnel4_handlers; static struct xfrm_tunnel *tunnel64_handlers; static DEFINE_MUTEX(tunnel4_mutex); +static inline struct xfrm_tunnel **fam_handlers(unsigned short family) +{ + return (family == AF_INET) ? &tunnel4_handlers : &tunnel64_handlers; +} + int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family) { struct xfrm_tunnel **pprev; @@ -25,8 +30,7 @@ int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family) mutex_lock(&tunnel4_mutex); - for (pprev = (family == AF_INET) ? &tunnel4_handlers : &tunnel64_handlers; - *pprev; pprev = &(*pprev)->next) { + for (pprev = fam_handlers(family); *pprev; pprev = &(*pprev)->next) { if ((*pprev)->priority > priority) break; if ((*pprev)->priority == priority) @@ -53,8 +57,7 @@ int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family) mutex_lock(&tunnel4_mutex); - for (pprev = (family == AF_INET) ? &tunnel4_handlers : &tunnel64_handlers; - *pprev; pprev = &(*pprev)->next) { + for (pprev = fam_handlers(family); *pprev; pprev = &(*pprev)->next) { if (*pprev == handler) { *pprev = handler->next; ret = 0;