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authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2020-03-26 16:58:09 +0100
committerJens Axboe <axboe@kernel.dk>2020-03-26 10:28:19 -0600
commitcba97ea18d92f3b9c56816fe9325aeb38a46746f (patch)
tree7b898680b6eb409414c986a554b15daf867424bc /drivers/ata
parent7caa30ea8238aed4f9998d032bfca7a91f6c36cd (diff)
downloadlinux-cba97ea18d92f3b9c56816fe9325aeb38a46746f.tar.bz2
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.c2
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;