On Thu, Jul 20, 2017 at 03:26:24PM -0400, Nate Watterson wrote:

The newly introduced ahci_platform_shutdown() method is called during
system shutdown to disable host controller DMA and interrupts in order
to avoid potentially corrupting or otherwise interfering with a new
kernel being started with kexec.

Signed-off-by: Nate Watterson <redacted>

Applied to libata/for-4.14.

Thanks.

-- 
tejun