IPv6: remove trivial nested _bh suffix

Don't need to disable bottom half it is already down in the
previous lock. Move some blank lines to group locking in same
context.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 10 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index b0e1430b64f1..764ad37ca070 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2802,14 +2802,14 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
         read_lock_bh(&idev->lock);
         if (ifp->dead)
                 goto out;
-        spin_lock_bh(&ifp->lock);
 
+        spin_lock(&ifp->lock);
         if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
             idev->cnf.accept_dad < 1 ||
             !(ifp->flags&IFA_F_TENTATIVE) ||
             ifp->flags & IFA_F_NODAD) {
                 ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|IFA_F_DADFAILED);
-                spin_unlock_bh(&ifp->lock);
+                spin_unlock(&ifp->lock);
                 read_unlock_bh(&idev->lock);
 
                 addrconf_dad_completed(ifp);
@@ -2817,7 +2817,7 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
         }
 
         if (!(idev->if_flags & IF_READY)) {
-                spin_unlock_bh(&ifp->lock);
+                spin_unlock(&ifp->lock);
                 read_unlock_bh(&idev->lock);
                 /*
                  * If the device is not ready:
@@ -2837,7 +2837,7 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
                 ip6_ins_rt(ifp->rt);
 
         addrconf_dad_kick(ifp);
-        spin_unlock_bh(&ifp->lock);
+        spin_unlock(&ifp->lock);
 out:
         read_unlock_bh(&idev->lock);
 }
@@ -2853,14 +2853,15 @@ static void addrconf_dad_timer(unsigned long data)
                 read_unlock_bh(&idev->lock);
                 goto out;
         }
-        spin_lock_bh(&ifp->lock);
+
+        spin_lock(&ifp->lock);
         if (ifp->probes == 0) {
                 /*
                  * DAD was successful
                  */
 
                 ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|IFA_F_DADFAILED);
-                spin_unlock_bh(&ifp->lock);
+                spin_unlock(&ifp->lock);
                 read_unlock_bh(&idev->lock);
 
                 addrconf_dad_completed(ifp);
@@ -2870,7 +2871,7 @@ static void addrconf_dad_timer(unsigned long data)
 
         ifp->probes--;
         addrconf_mod_timer(ifp, AC_DAD, ifp->idev->nd_parms->retrans_time);
-        spin_unlock_bh(&ifp->lock);
+        spin_unlock(&ifp->lock);
         read_unlock_bh(&idev->lock);
 
         /* send a neighbour solicitation for our addr */
@@ -2918,12 +2919,12 @@ static void addrconf_dad_run(struct inet6_dev *idev) {
 
         read_lock_bh(&idev->lock);
         for (ifp = idev->addr_list; ifp; ifp = ifp->if_next) {
-                spin_lock_bh(&ifp->lock);
+                spin_lock(&ifp->lock);
                 if (!(ifp->flags & IFA_F_TENTATIVE)) {
-                        spin_unlock_bh(&ifp->lock);
+                        spin_unlock(&ifp->lock);
                         continue;
                 }
-                spin_unlock_bh(&ifp->lock);
+                spin_unlock(&ifp->lock);
                 addrconf_dad_kick(ifp);
         }
         read_unlock_bh(&idev->lock);