[IPV6] NDISC: Sparse: Use different variable name for local use.

Fix the following sparse warnings:
| net/ipv6/ndisc.c:1300:21: warning: symbol 'opt' shadows an earlier one
| net/ipv6/ndisc.c:1078:7: originally declared here

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index bdfc4ea61941..0d33a7d32125 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1297,11 +1297,11 @@ skip_defrtr:
         }
 
         if (ndopts.nd_useropts) {
-                struct nd_opt_hdr *opt;
-                for (opt = ndopts.nd_useropts;
-                     opt;
-                     opt = ndisc_next_useropt(opt, ndopts.nd_useropts_end)) {
-                                ndisc_ra_useropt(skb, opt);
+                struct nd_opt_hdr *p;
+                for (p = ndopts.nd_useropts;
+                     p;
+                     p = ndisc_next_useropt(p, ndopts.nd_useropts_end)) {
+                        ndisc_ra_useropt(skb, p);
                 }
         }