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| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2020-03-26 18:58:07 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-03-26 19:28:19 +0300 |
| commit | a9b2c120e34bcfe49f837830ee4bfbd2aad4b5c8 (patch) | |
| tree | efb535a5b03c9e6c79ced564cbd8a4ff6e93ebee /drivers/ata/Makefile | |
| parent | 4e168187047bf5d95b66567061007b87c29f7341 (diff) | |
| download | linux-a9b2c120e34bcfe49f837830ee4bfbd2aad4b5c8.tar.xz | |
ata: separate PATA timings code from libata-core.c
Separate PATA timings code from libata-core.c:
* add PATA_TIMINGS config option and make corresponding PATA
host drivers (and ATA ACPI code) select it
* move following PATA timings code to libata-pata-timings.c:
- ata_timing_quantize()
- ata_timing_merge()
- ata_timing_find_mode()
- ata_timing_compute()
* group above functions together in <linux/libata.h>
* include libata-pata-timings.c in the build when PATA_TIMINGS
config option is enabled
* cover ata_timing_cycle2mode() with CONFIG_ATA_ACPI ifdef (it
depends on code from libata-core.c and libata-pata-timings.c
while its only user is ATA ACPI)
Code size savings on m68k arch using (modified) atari_defconfig:
text data bss dec hex filename
before:
39688 573 40 40301 9d6d drivers/ata/libata-core.o
after:
37820 572 40 38432 9620 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/Makefile')
| -rw-r--r-- | drivers/ata/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index d8cc2e04a6c7..cdaf965fed25 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -127,3 +127,4 @@ libata-$(CONFIG_ATA_SFF) += libata-sff.o libata-$(CONFIG_SATA_PMP) += libata-pmp.o libata-$(CONFIG_ATA_ACPI) += libata-acpi.o libata-$(CONFIG_SATA_ZPODD) += libata-zpodd.o +libata-$(CONFIG_PATA_TIMINGS) += libata-pata-timings.o |