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authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2020-03-26 18:58:07 +0300
committerJens Axboe <axboe@kernel.dk>2020-03-26 19:28:19 +0300
commita9b2c120e34bcfe49f837830ee4bfbd2aad4b5c8 (patch)
treeefb535a5b03c9e6c79ced564cbd8a4ff6e93ebee /drivers/ata/Makefile
parent4e168187047bf5d95b66567061007b87c29f7341 (diff)
downloadlinux-a9b2c120e34bcfe49f837830ee4bfbd2aad4b5c8.tar.xz
ata: separate PATA timings code from libata-core.c
Separate PATA timings code from libata-core.c: * add PATA_TIMINGS config option and make corresponding PATA host drivers (and ATA ACPI code) select it * move following PATA timings code to libata-pata-timings.c: - ata_timing_quantize() - ata_timing_merge() - ata_timing_find_mode() - ata_timing_compute() * group above functions together in <linux/libata.h> * include libata-pata-timings.c in the build when PATA_TIMINGS config option is enabled * cover ata_timing_cycle2mode() with CONFIG_ATA_ACPI ifdef (it depends on code from libata-core.c and libata-pata-timings.c while its only user is ATA ACPI) Code size savings on m68k arch using (modified) atari_defconfig: text data bss dec hex filename before: 39688 573 40 40301 9d6d drivers/ata/libata-core.o after: 37820 572 40 38432 9620 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/Makefile')
-rw-r--r--drivers/ata/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index d8cc2e04a6c7..cdaf965fed25 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -127,3 +127,4 @@ libata-$(CONFIG_ATA_SFF) += libata-sff.o
libata-$(CONFIG_SATA_PMP) += libata-pmp.o
libata-$(CONFIG_ATA_ACPI) += libata-acpi.o
libata-$(CONFIG_SATA_ZPODD) += libata-zpodd.o
+libata-$(CONFIG_PATA_TIMINGS) += libata-pata-timings.o