[klibc] [PATCH] nfsmount: defeat dummypmap compiler warning

[Greg Thelen]

Without this patch gcc 4.6 warns:
KLIBCCC usr/kinit/nfsmount/dummypmap.o
usr/kinit/nfsmount/dummypmap.c: In function 'dummy_portmap':
usr/kinit/nfsmount/dummypmap.c:191:13: warning: array subscript is below array bounds [-Warray-bounds]

Signed-off-by: Greg Thelen <gthelen at google.com>
---
 usr/kinit/nfsmount/dummypmap.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/usr/kinit/nfsmount/dummypmap.c b/usr/kinit/nfsmount/dummypmap.c
index 7c5b6bc..7c4da35 100644
--- a/usr/kinit/nfsmount/dummypmap.c
+++ b/usr/kinit/nfsmount/dummypmap.c
@@ -150,7 +150,7 @@ static int dummy_portmap(int sock, FILE *portmap_file)
 	int pktlen, addrlen;
 	unsigned char pkt[65536];	/* Max UDP packet size */
 	/* RPC UDP packets do not include TCP fragment size */
-	struct rpc_call *rpc = (struct rpc_call *) &pkt[-4];
+	struct rpc_call *rpc = (struct rpc_call *)((uintptr_t)pkt - 4);
 	struct rpc_auth *cred;
 	struct rpc_auth *vrf;
 	struct portmap_args *args;
-- 
1.7.3.1