Re: [PATCH] ata: Clean up hard coded array size calculation.

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Thiago Farina wrote:
Use ARRAY_SIZE macro of kernel api instead.

Signed-off-by: Thiago Farina <tfransosi@xxxxxxxxx>
---
 drivers/ata/sata_mv.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 6f5093b..a8a7be0 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -2217,7 +2217,7 @@ static unsigned int mv_qc_issue_fis(struct ata_queued_cmd *qc)
 	int err = 0;
ata_tf_to_fis(&qc->tf, link->pmp, 1, (void *)fis);
-	err = mv_send_fis(ap, fis, sizeof(fis) / sizeof(fis[0]));
+	err = mv_send_fis(ap, fis, ARRAY_SIZE(fis));
 	if (err)
 		return err;
..

What's the point of this ?

There is no "hardcoded array size" there to begin with,
and using that silly macro obscures the actual calculation.

So now, instead of being able to verify correctness at a glance,
I have to go off and research some silly macro and verify that
it does the right thing.

Kind of like all of those "typedef structs" that are abhored around here.

-ml
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