No sense manually doing the alignment dance, there's a macro for that.
Once the optimal alignment stuff is added, this could
probably turn into something like this (in core.h):

static inline u32 mmc_align_data_size(struct mmc_card *card, u32 sz)
{
	return ALIGN(sz, card->align_sz);
}

Signed-off-by: Andres Salomon <dilinger@debian.org>
---
 drivers/mmc/core/core.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 3ee5b8c..e306061 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -315,9 +315,7 @@ unsigned int mmc_align_data_size(struct mmc_card *card, unsigned int sz)
 	 * the core about its problems yet, so for now we just 32-bit
 	 * align the size.
 	 */
-	sz = ((sz + 3) / 4) * 4;
-
-	return sz;
+	return ALIGN(sz, 4);
 }
 EXPORT_SYMBOL(mmc_align_data_size);
 
-- 
1.5.5.3
--
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