On 03/29/2013 07:54 AM, David Woodhouse wrote:
Commit 803739d25c2343da6d2f95eebdcbc08bf67097d4 ("[libata] replace
sata_settings with devslp_timing"), which was also Cc: stable, used a
stack buffer to receive data from ata_read_log_page(), which triggers
the following warning:
ahci 0000:00:1f.2: DMA-API: device driver maps memory fromstack [addr=ffff880140469948]
Fix this by using ap->sector_buf instead of a stack buffer.
Signed-off-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>
Cc: stable@xxxxxxxxxx
applied
I'm somewhat ignorant, but it looks like this is kind of thing is what
ap->sector_buf is *for*, right? And in ata_dev_configure() nobody else
is likely to be using it?
yep
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