nfs-utils: Fix C aliasing rules violation in nfs_getrpccaller()

Squelch compiler warnings reported with -Wextra:

In file included from statd.c:24:
../../support/include/rpcmisc.h: In function nfs_getrpccaller_in:
../../support/include/rpcmisc.h:58: warning: dereferencing type-punned
pointer might break strict-aliasing rules
../../support/include/rpcmisc.h: In function nfs_getrpccaller:
../../support/include/rpcmisc.h:63: warning: dereferencing type-punned
pointer might break strict-aliasing rules

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>

diff --git a/support/include/rpcmisc.h b/support/include/rpcmisc.h
index 1b8f411ea8cc847c8bd2c23c1d576a5fbd487790..c5847fa261fd2635a6499ec1323d8a8b5bbf34e2 100644 (file)
--- a/support/include/rpcmisc.h
+++ b/support/include/rpcmisc.h
@@ -60,12 +60,12 @@ extern int  _rpcsvcdirty;
 
 static inline struct sockaddr_in *nfs_getrpccaller_in(SVCXPRT *xprt)
 {
-       return (struct sockaddr_in *)svc_getcaller(xprt);
+       return (struct sockaddr_in *)(char *)svc_getcaller(xprt);
 }
 
 static inline struct sockaddr *nfs_getrpccaller(SVCXPRT *xprt)
 {
-       return (struct sockaddr *)svc_getcaller(xprt);
+       return (struct sockaddr *)(char *)svc_getcaller(xprt);
 }
 
 #endif /* RPCMISC_H */