Re: [PATCH RESEND v7 2/2] mmc: card: Adding support for sanitize in eMMC 4.5

From: Chris Ball
Date: Thu Jul 19 2012 - 02:46:12 EST

Hi Yaniv,

On Thu, Jun 28 2012, Yaniv Gardi wrote:
> This feature delete the unmap memory region of the eMMC card,
> by writing to a specific register in the EXT_CSD
> unmap region is the memory region that were previously deleted
> (by erase, trim or discard operation)
> Signed-off-by: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>

Did you reply to Chuanxiao's review comments yet? He said:

"So to implement your scenario, how about only add
mmc_blk_issue_sanitize_rq() for REQ_SANITIZE but not touch
mmc_blk_issue_secdiscard_rq()? With your changes in
mmc_blk_issue_secdiscard_rq(), eMMC4.5 device will be failed to operate
secure trim/erase for REQ_SECURE request."



- Chris.
Chris Ball <cjb@xxxxxxxxxx> <>
One Laptop Per Child
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