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ata: optimize ata_scsi_rbuf[] size

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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

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2020-03-26 16:58:03 +01:00 committed by Jens Axboe
parent 8ba5a45c99
commit c8fa4f8e22
1 changed files with 1 additions and 1 deletions
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2
drivers/ata/libata-scsi.c
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@ -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];