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| author |   Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2020-03-26 16:58:09 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-03-26 10:28:19 -0600 |
| commit | cba97ea18d92f3b9c56816fe9325aeb38a46746f (patch) | |
| tree | 7b898680b6eb409414c986a554b15daf867424bc /drivers/ata | |
| parent | ata: add CONFIG_SATA_HOST=n version of ata_ncq_enabled() (diff) | |
| download | linux-dev-cba97ea18d92f3b9c56816fe9325aeb38a46746f.tar.xz linux-dev-cba97ea18d92f3b9c56816fe9325aeb38a46746f.zip | |
ata: let compiler optimize out ata_dev_config_ncq() on non-SATA hosts
Add !IS_ENABLED(CONFIG_SATA_HOST) to ata_dev_config_ncq() to allow
compiler to optimize out the function for non-SATA configs.
Code size savings on m68k arch using (modified) atari_defconfig:
text data bss dec hex filename
before:
37582 572 40 38194 9532 drivers/ata/libata-core.o
after:
36462 572 40 37074 90d2 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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 0a56968e2e98..dcdb7fb46dbd 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2287,6 +2287,8 @@ static int ata_dev_config_ncq(struct ata_device *dev, desc[0] = '\0'; return 0; } + if (!IS_ENABLED(CONFIG_SATA_HOST)) + return 0; if (dev->horkage & ATA_HORKAGE_NONCQ) { snprintf(desc, desc_sz, "NCQ (not used)"); return 0; |