Re: [PATCH 2/3] au1200fb: fix DMA API abuse
From: Manuel Lauss
Date: Wed May 15 2019 - 08:06:40 EST
On Thu, May 9, 2019 at 7:39 PM Christoph Hellwig <hch@xxxxxx> wrote:
> Virtual addresses return from dma(m)_alloc_attrs are opaque in what
> backs then, and drivers must not poke into them. Similarly caching
> modes are not supposed to be directly set by the driver. Switch the
> driver to use the generic DMA API mmap helper to avoid these problems.
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> drivers/video/fbdev/au1200fb.c | 19 ++++---------------
> 1 file changed, 4 insertions(+), 15 deletions(-)
Runs fine on my test system.
Tested-by: Manuel Lauss <manuel.lauss@xxxxxxxxx>