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    libata: move link onlineness check out of softreset methods · 45db2f6c
    Tejun Heo 提交于
    Currently, SATA softresets should do link onlineness check before
    actually performing SRST protocol but it doesn't really belong to
    softreset.
    
    This patch moves onlineness check in softreset to ata_eh_reset() and
    ata_eh_followup_srst_needed() to clean up code and help future sata_mv
    changes which need clear separation between SCR and TF accesses.
    
    sata_fsl is peculiar in that its softreset really isn't softreset but
    combination of hardreset and softreset.  This patch adds dummy private
    ->prereset to keep the current behavior but the driver really should
    implement separate hard and soft resets and return -EAGAIN from
    hardreset if it should be follwed by softreset.
    Signed-off-by: NTejun Heo <htejun@gmail.com>
    Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
    45db2f6c
libata-core.c 157.4 KB