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Subject[PATCH v4 08/27] ata: optimize ata_scsi_rbuf[] size
Date
Currently the maximum required size of the ata_scsi_rbuf[] is
576 bytes in ata_scsiop_inq_89() so modify ATA_SCSI_RBUF_SIZE
define accordingly.

Code size savings on m68k arch using (modified) atari_defconfig:

text data bss dec hex filename
before:
20782 105 4096 24983 6197 drivers/ata/libata-scsi.o
after:
20782 105 576 21463 53d7 drivers/ata/libata-scsi.o

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
drivers/ata/libata-scsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 2a43eef97b87..7bdda82fe886 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -37,7 +37,7 @@
#include "libata.h"
#include "libata-transport.h"

-#define ATA_SCSI_RBUF_SIZE 4096
+#define ATA_SCSI_RBUF_SIZE 576

static DEFINE_SPINLOCK(ata_scsi_rbuf_lock);
static u8 ata_scsi_rbuf[ATA_SCSI_RBUF_SIZE];
--
2.24.1
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