Eric Lee / smarc-fsl-linux-kernel

27 Mar, 2020

1 commit

  • a9b2c120e   ata: separate PATA timings code from libata-core.c ... Browse Code ยป

    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

    * 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
    Signed-off-by: Bartlomiej Zolnierkiewicz
    Signed-off-by: Jens Axboe

    Bartlomiej Zolnierkiewicz