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| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2020-03-26 16:58:08 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-03-26 17:28:19 +0100 |
| commit | 7caa30ea8238aed4f9998d032bfca7a91f6c36cd (patch) | |
| tree | 41ae5357d381782936c57b67613534153a4d35c2 /drivers/ata/libata-core.c | |
| parent | ata: separate PATA timings code from libata-core.c (diff) | |
| download | linux-7caa30ea8238aed4f9998d032bfca7a91f6c36cd.tar.xz linux-7caa30ea8238aed4f9998d032bfca7a91f6c36cd.zip | |
ata: add CONFIG_SATA_HOST=n version of ata_ncq_enabled()
When CONFIG_SATA_HOST=n there are no NCQ capable host drivers
built so it is safe to hardwire ata_ncq_enabled() to always
return zero.
Code size savings on m68k arch using (modified) atari_defconfig:
text data bss dec hex filename
before:
37820 572 40 38432 9620 drivers/ata/libata-core.o
21040 105 576 21721 54d9 drivers/ata/libata-scsi.o
17405 18 0 17423 440f drivers/ata/libata-eh.o
after:
37582 572 40 38194 9532 drivers/ata/libata-core.o
20702 105 576 21383 5387 drivers/ata/libata-scsi.o
17353 18 0 17371 43db drivers/ata/libata-eh.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/libata-core.c')
0 files changed, 0 insertions, 0 deletions