linux-kernel - Re: [PATCH RFT/RFC 01/49] staging: media: Revert "media: zoran: remove deprecated driver"

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Date:   Tue, 22 Sep 2020 06:16:01 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Corentin Labbe <clabbe@...libre.com>
Cc:     gregkh@...uxfoundation.org, laurent.pinchart@...net.be,
        mchehab@...nel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [PATCH RFT/RFC 01/49] staging: media: Revert "media: zoran:
 remove deprecated driver"

> +		fh->buffers.buffer[i].v4l.fbuffer = mem;
> +		fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
> +		fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
> +		for (off = 0; off < fh->buffers.buffer_size;
> +		     off += PAGE_SIZE)
> +			SetPageReserved(virt_to_page(mem + off));

This messing with SetPageReserved needs to go away before we bring
back the driver, even for staging.