microblaze: board: Remove compilation warning

Variable is used when CONFIG_SYS_FLASH_CHECKSUM is used.

Warning log:
board.c: In function 'board_init':
board.c:101: warning: unused variable 's'

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>

diff --git a/arch/microblaze/lib/board.c b/arch/microblaze/lib/board.c
index 942e18c2c7da4ef00e3214abccc2532578df2207..b5f21d8a39b4b8f033456995b550bc0204764a8f 100644 (file)
--- a/arch/microblaze/lib/board.c
+++ b/arch/microblaze/lib/board.c
@@ -32,6 +32,7 @@
 #include <stdio_dev.h>
 #include <serial.h>
 #include <net.h>
+#include <linux/compiler.h>
 #include <asm/processor.h>
 #include <asm/microblaze_intc.h>
 #include <fdtdec.h>
@@ -91,7 +92,7 @@ void board_init (void)
        gd = (gd_t *) (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
        bd = (bd_t *) (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET \
                                                - GENERATED_BD_INFO_SIZE);
-       char *s;
+       __maybe_unused char *s;
 #if defined(CONFIG_CMD_FLASH)
        ulong flash_size = 0;
 #endif