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| author |   Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2020-03-26 16:58:03 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-03-26 10:28:18 -0600 |
| commit | c8fa4f8e22d1308179dfe17abb00d3aebbcb7410 (patch) | |
| tree | d457f71f76eacf06f2f86389c51b9162424f7a6a /drivers/ata | |
| parent | ata: optimize struct ata_force_param size (diff) | |
| download | wireguard-linux-c8fa4f8e22d1308179dfe17abb00d3aebbcb7410.tar.xz wireguard-linux-c8fa4f8e22d1308179dfe17abb00d3aebbcb7410.zip | |
ata: optimize ata_scsi_rbuf[] size
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>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 0912acb82b80..c2b8428dfb94 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]; |