[PATCH 6/9] nfsd: fix empty-body warning in nfs4state.c

[Randy Dunlap]

Fix gcc empty-body warning when -Wextra is used:

../fs/nfsd/nfs4state.c:3898:3: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body]

Signed-off-by: Randy Dunlap <rdunlap at infradead.org>
Cc: Linus Torvalds <torvalds at linux-foundation.org>
Cc: Andrew Morton <akpm at linux-foundation.org>
Cc: "J. Bruce Fields" <bfields at fieldses.org>
Cc: Chuck Lever <chuck.lever at oracle.com>
Cc: linux-nfs at vger.kernel.org
---
 fs/nfsd/nfs4state.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- linux-next-20200417.orig/fs/nfsd/nfs4state.c
+++ linux-next-20200417/fs/nfsd/nfs4state.c
@@ -34,6 +34,7 @@
 
 #include <linux/file.h>
 #include <linux/fs.h>
+#include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/namei.h>
 #include <linux/swap.h>
@@ -3895,7 +3896,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp
 		copy_clid(new, conf);
 		gen_confirm(new, nn);
 	} else /* case 4 (new client) or cases 2, 3 (client reboot): */
-		;
+		do_empty();
 	new->cl_minorversion = 0;
 	gen_callback(new, setclid, rqstp);
 	add_to_unconfirmed(new);