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| author |   Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2020-03-26 16:58:10 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-03-26 10:28:19 -0600 |
| commit | 4c9029e7d00f31923bcecbaab6a12ba52017924e (patch) | |
| tree | 6010ae02826371b47b7bef0505bf7660e6523b51 /include/linux/libata.h | |
| parent | ata: let compiler optimize out ata_dev_config_ncq() on non-SATA hosts (diff) | |
| download | linux-dev-4c9029e7d00f31923bcecbaab6a12ba52017924e.tar.xz linux-dev-4c9029e7d00f31923bcecbaab6a12ba52017924e.zip | |
ata: let compiler optimize out ata_eh_set_lpm() on non-SATA hosts
Add !IS_ENABLED(CONFIG_SATA_HOST) to ata_eh_set_lpm() to allow
compiler to optimize out the function for non-SATA configs (for
PATA hosts "ap && !ap->ops->set_lpm" condition is always true so
it's sufficient for the function to return zero).
Code size savings on m68k arch using (modified) atari_defconfig:
text data bss dec hex filename
before:
17353 18 0 17371 43db drivers/ata/libata-eh.o
after:
16607 18 0 16625 40f1 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 'include/linux/libata.h')
0 files changed, 0 insertions, 0 deletions