linux-kernel - Re: [PATCH] staging: android: ion: Zero CMA allocated memory

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Message-ID: <20180120080008.GA20172@kroah.com>
Date:   Sat, 20 Jan 2018 09:00:08 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Liam Mark <lmark@...eaurora.org>
Cc:     Laura Abbott <labbott@...hat.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        linaro-mm-sig@...ts.linaro.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: android: ion: Zero CMA allocated memory

On Fri, Jan 19, 2018 at 11:16:47AM -0800, Liam Mark wrote:
> Since the CMA API is now used directly the allocated memory is no longer
> automatically zeroed.
> 
> Explicitly zero CMA allocated memory to ensure that no data is exposed
> to userspace.

How far back does this patch need to be ported?  What is the git commit
id that caused this change to be needed?  Please add it as a "Fixes:"
tag to the patch.

> 
> Change-Id: I08e143707a0d31610821a7f16826c262bf3c1999

I'm guessing you didn't run scripts/checkpatch.pl on this patch :(

Please fix up and resend.

thanks,

greg k-h