linux-kernel - Re: [PATCH 4.19 36/54] tee: add tee_shm_alloc_kernel

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Message-ID: <YRT+ZLYEFcmyFrig@kroah.com>
Date:   Thu, 12 Aug 2021 12:56:36 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Tyler Hicks <tyhicks@...ux.microsoft.com>
Cc:     Pavel Machek <pavel@...x.de>, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org, Sumit Garg <sumit.garg@...aro.org>,
        Jens Wiklander <jens.wiklander@...aro.org>
Subject: Re: [PATCH 4.19 36/54] tee: add tee_shm_alloc_kernel_buf()

On Wed, Aug 11, 2021 at 08:34:27AM -0500, Tyler Hicks wrote:
> On 2021-08-11 09:24:34, Pavel Machek wrote:
> > Hi!
> > 
> > > commit dc7019b7d0e188d4093b34bd0747ed0d668c63bf upstream.
> > > 
> > > Adds a new function tee_shm_alloc_kernel_buf() to allocate shared memory
> > > from a kernel driver. This function can later be made more lightweight
> > > by unnecessary dma-buf export.
> > 
> > 5.10 contains follow-up patches actually using the export, but 4.19
> > does not. I believe it should be dropped from 4.19.
> 
> That's correct. Those follow-up patches that made use of this function
> were only needed back to 5.4.

Now dropped, thanks.

greg k-h