[BACK]Return to if_ethersubr.c CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / sys / net

Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.

Diff for /src/sys/net/if_ethersubr.c between version 1.250 and 1.251

version 1.250, 2017/12/09 10:51:30 version 1.251, 2018/01/15 07:59:48
Line 1553  ether_multicast_sysctl(SYSCTLFN_ARGS)
Line 1553  ether_multicast_sysctl(SYSCTLFN_ARGS)
   
         /*          /*
          * ec->ec_lock is a spin mutex so we cannot call sysctl_copyout, which           * ec->ec_lock is a spin mutex so we cannot call sysctl_copyout, which
          * is sleepable, with holding it. Copy data to a local buffer first           * is sleepable, while holding it. Copy data to a local buffer first
          * with holding it and then call sysctl_copyout without holding it.           * with the lock taken and then call sysctl_copyout without holding it.
          */           */
 retry:  retry:
         multicnt = ec->ec_multicnt;          multicnt = ec->ec_multicnt;
   
           if (multicnt == 0) {
                   if_put(ifp, &psref);
                   *oldlenp = 0;
                   goto out;
           }
   
         addrs = kmem_alloc(sizeof(*addrs) * multicnt, KM_SLEEP);          addrs = kmem_alloc(sizeof(*addrs) * multicnt, KM_SLEEP);
   
         ETHER_LOCK(ec);          ETHER_LOCK(ec);
         if (multicnt < ec->ec_multicnt) {          if (multicnt != ec->ec_multicnt) {
                 /* The number of multicast addresses have increased */                  /* The number of multicast addresses has changed */
                 ETHER_UNLOCK(ec);                  ETHER_UNLOCK(ec);
                 kmem_free(addrs, sizeof(*addrs) * multicnt);                  kmem_free(addrs, sizeof(*addrs) * multicnt);
                 goto retry;                  goto retry;
Legend:
Removed from v.1.250  
changed lines
  Added in v.1.251
CVSweb <webmaster@jp.NetBSD.org>