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| author |   Colin Ian King <colin.king@canonical.com> | 2017-09-19 09:39:52 +0100 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2017-09-19 11:53:11 -0700 |
| commit | e94f7914fa8731cc64260c0a3a0b7b9957523730 (patch) | |
| tree | a0edf48c133f53895e1806e31840221132350ceb /drivers/ata | |
| parent | ata: pata_artop: remove redundant initialization of pio (diff) | |
| download | linux-dev-e94f7914fa8731cc64260c0a3a0b7b9957523730.tar.xz linux-dev-e94f7914fa8731cc64260c0a3a0b7b9957523730.zip | |
libata: make static arrays const, reduces object code size
Don't populate const arrayis on the stack, instead make them static.
Makes the object code smaller by over 260 bytes:
Before:
text data bss dec hex filename
64864 5948 4128 74940 124bc drivers/ata/libata-scsi.o
After:
text data bss dec hex filename
64183 6364 4128 74675 123b3 drivers/ata/libata-scsi.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 673e72f438eb..66be961c93a4 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -2146,7 +2146,7 @@ static void ata_scsi_rbuf_fill(struct ata_scsi_args *args, */ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf) { - const u8 versions[] = { + static const u8 versions[] = { 0x00, 0x60, /* SAM-3 (no version claimed) */ @@ -2156,7 +2156,7 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf) 0x03, 0x00 /* SPC-3 (no version claimed) */ }; - const u8 versions_zbc[] = { + static const u8 versions_zbc[] = { 0x00, 0xA0, /* SAM-5 (no version claimed) */ @@ -2228,7 +2228,7 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf) static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf) { int num_pages; - const u8 pages[] = { + static const u8 pages[] = { 0x00, /* page 0x00, this page */ 0x80, /* page 0x80, unit serial no page */ 0x83, /* page 0x83, device ident page */ @@ -2259,7 +2259,7 @@ static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf) */ static unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf) { - const u8 hdr[] = { + static const u8 hdr[] = { 0, 0x80, /* this page code */ 0, @@ -2581,7 +2581,7 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf) { struct ata_device *dev = args->dev; u8 *scsicmd = args->cmd->cmnd, *p = rbuf; - const u8 sat_blk_desc[] = { + static const u8 sat_blk_desc[] = { 0, 0, 0, 0, /* number of blocks: sat unspecified */ 0, 0, 0x2, 0x0 /* block length: 512 bytes */ |