linux-kernel - Re: [PATCH v1] misc: fastrpc: Reassign memory ownership only for remote heap

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Message-Id: <168390327749.185210.3662822283273466169.b4-ty@linaro.org>
Date:   Fri, 12 May 2023 15:54:37 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     linux-arm-msm@...r.kernel.org,
        Ekansh Gupta <quic_ekangupt@...cinc.com>
Cc:     ekangupt@....qualcomm.com, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org, bkumar@....qualcomm.com,
        fastrpc.upstream@....qualcomm.com, stable <stable@...nel.org>
Subject: Re: [PATCH v1] misc: fastrpc: Reassign memory ownership only for
 remote heap


On Tue, 21 Mar 2023 15:51:40 +0530, Ekansh Gupta wrote:
> The userspace map request for remote heap allocates CMA memory.
> The ownership of this memory needs to be reassigned to proper
> owners to allow access from the protection domain running on
> DSP. This reassigning of ownership is not correct if done for
> any other supported flags.
> 
> When any other flag is requested from userspace, fastrpc is
> trying to reassign the ownership of memory and this reassignment
> is getting skipped for remote heap request which is incorrect.
> Add proper flag check to reassign the memory only if remote heap
> is requested.
> 
> [...]

Applied, thanks!

[1/1] misc: fastrpc: Reassign memory ownership only for remote heap
      commit: 5fad4a6b2d8f05c4823a08465e584f46df798b1f

Best regards,
-- 
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>