From: Marek Vasut <marex@denx.de>
Date: Sat, 30 Apr 2016 22:35:54 +0000 (+0200)
Subject: cmd: disk: Fix unused variable warning
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=04681cb3a4d2ef5351f94132e325fb8841d37961;p=u-boot.git

cmd: disk: Fix unused variable warning

If serial support is not compiled into U-Boot, which may be the case
for some SPL builds, the following warning will be generated in disk.c:

cmd/disk.c: In function 'common_diskboot':
cmd/disk.c:16:6: warning: variable 'dev' set but not used [-Wunused-but-set-variable]
  int dev, part;
      ^
The warning is a result of printf() calls being optimized away, and
thus the whole dev variable becomes indeed unused. Mark the variable
as __maybe_unused .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
---

diff --git a/cmd/disk.c b/cmd/disk.c
index fcc4123127..92de3af8a5 100644
--- a/cmd/disk.c
+++ b/cmd/disk.c
@@ -13,7 +13,8 @@
 int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
 		    char *const argv[])
 {
-	int dev, part;
+	__maybe_unused int dev;
+	int part;
 	ulong addr = CONFIG_SYS_LOAD_ADDR;
 	ulong cnt;
 	disk_partition_t info;