[PATCH 15/19] sunrpc: don't warn for unused variable 'buf'
From: arnd@arndb.de (Arnd Bergmann)
Date: 2013-01-25 22:49:04
Also in:
linux-nfs, lkml, netdev
Subsystem:
kernel nfsd, sunrpc, and lockd servers, networking [general], nfs, sunrpc, and lockd clients, the rest · Maintainers:
Chuck Lever, Jeff Layton, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Trond Myklebust, Anna Schumaker, Linus Torvalds
When RPC_DEBUG is unset, the dprintk() macro does nothing, causing the 'buf' variable in svc_printk to become unused. Marking it as __maybe_unused avoids a harmless gcc warning. Without this patch, building at91_dt_defconfig results in: net/sunrpc/svc.c: In function 'svc_printk': net/sunrpc/svc.c:1051:7: warning: unused variable 'buf' [-Wunused-variable] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: "J. Bruce Fields" <redacted> Cc: Trond Myklebust <redacted> Cc: linux-nfs at vger.kernel.org Cc: netdev at vger.kernel.org --- net/sunrpc/svc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index dbf12ac..b1f5223 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c@@ -1047,7 +1047,7 @@ void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) { struct va_format vaf; va_list args; - char buf[RPC_MAX_ADDRBUFLEN]; + char buf[RPC_MAX_ADDRBUFLEN] __maybe_unused; va_start(args, fmt);
--
1.8.0