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mmc: Fix warning if debug() is not used 

If debug() is not used, then the whole content of debug(...) will
be removed by the preprocessor, which will result in the following
warning. This patch adds __maybe_unused annotation to fix this.

drivers/mmc/mmc.c: In function ‘mmc_init’:
drivers/mmc/mmc.c:1685:11: warning: variable ‘start’ set but not used [-Wunused-but-set-variable]
  unsigned start;

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Marek Vasut 2016-12-01 02:06:32 +01:00 committed by Jaehoon Chung
parent cd3d48807d
commit ce9eca9438
1 changed files with 1 additions and 1 deletions
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drivers/mmc/mmc.c
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@ -1708,7 +1708,7 @@ static int mmc_complete_init(struct mmc *mmc)
int mmc_init(struct mmc *mmc)
{
int err = 0;
unsigned start;
__maybe_unused unsigned start;
#ifdef CONFIG_DM_MMC
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc->dev);