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@xxxxxx> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx> --- drivers/ata/libata-core.c | 2 ++ 1 file changed, 2 insertions(+) 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; -- 2.24.1