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| author |   Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2020-03-26 16:58:02 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-03-26 10:28:18 -0600 |
| commit | 8ba5a45c998cdbfb565fb7670782407c3e4a25ba (patch) | |
| tree | c6dd359a2cc071a121386332996ba710ef456f7c /drivers/ata | |
| parent | ata: use COMMAND_LINE_SIZE for ata_force_param_buf[] size (diff) | |
| download | linux-dev-8ba5a45c998cdbfb565fb7670782407c3e4a25ba.tar.xz linux-dev-8ba5a45c998cdbfb565fb7670782407c3e4a25ba.zip | |
ata: optimize struct ata_force_param size
Optimize struct ata_force_param size by:
- using u8 for cbl and spd_limit fields
- using u16 for lflags field
Code size savings on m68k arch using (modified) atari_defconfig:
text data bss dec hex filename
before:
41064 573 40 41677 a2cd drivers/ata/libata-core.o
after:
40654 573 40 41267 a133 drivers/ata/libata-core.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-core.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index a9a8762448aa..a835d2bf243e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -90,12 +90,12 @@ atomic_t ata_print_id = ATOMIC_INIT(0); struct ata_force_param { const char *name; - unsigned int cbl; - int spd_limit; + u8 cbl; + u8 spd_limit; unsigned long xfer_mask; unsigned int horkage_on; unsigned int horkage_off; - unsigned int lflags; + u16 lflags; }; struct ata_force_ent { |