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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> |
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| linux | ||
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