linux-kernel - Re: [PATCH] staging: android: ion: check for kref overflow

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Message-ID: <4b4e64a4-bf6f-b3d0-4221-2a0d3206a6a9@google.com>
Date:   Fri, 31 Aug 2018 14:31:38 -0700
From:   Daniel Rosenberg <drosen@...gle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     stable@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...roid.com
Subject: Re: [PATCH] staging: android: ion: check for kref overflow



On 08/31/2018 08:56 AM, Greg Kroah-Hartman wrote:
> On Thu, Aug 30, 2018 at 06:36:18PM -0700, Daniel Rosenberg wrote:
>> The sign off was on the 4.4.y version that I cherry-picked this from.
> Ah that wasn't obvious at all.  What is that git commit id?  You need to
> give us a hint as to what is going on when you do that :)
b84ec04bae905901("staging: android: ion: check for kref overflow") in 4.4.y
>> There was a trivial conflict moving it to 4.9, but it did not modify
>> any changed lines, so I hadn't thought that was worth noting on the
>> patch. I apologise if leaving the signed-off-by was incorrect here.
> Why did I only apply this to 4.4 and not 4.9 when the original patch was
> submitted?  That seems odd.
>
> thanks,
>
> greg k-h
I don't know. I had included it in the range of kernel versions it 
should be applied to in the original patch, and noted the minor conflict 
for later kernel versions. You added it in 3.18 and 4.4, and I assumed 
not 4.9 because of the conflict in applying the patch, so I sent this 
version.

b1fa6d8acb50c8e9 ("staging: android: ion: Pull out ion ioctls to a 
separate file") is the patch that causes the minor conflict in applying 
the original patch.
4c23cbff073f3b9b ("staging: android: ion: Remove import interface") is 
the patch that removes the affected code altogether in later kernels 
versions.