# Re: \[PATCH 7/7\] x86: remove the x86\_dma\_fallback\_dev hack

- From: Thomas Gleixner \<hidden\>
- Date: 2019-03-23 11:29:14 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2019/03/5547755
- Thread: https://ratatoskr.run/linux-doc/2019/03/5545246/t.md

```text
On Thu, 21 Mar 2019, Christoph Hellwig wrote:

Please change the subject to:

 x86/dma: Remove the .... hack

> Now that we removed support for the NULL device argument in the DMA API,
> there is no need to cater for that in the x86 code.

> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/x86/include/asm/dma-mapping.h | 10 ----------
>  arch/x86/kernel/amd_gart_64.c      |  6 ------
>  arch/x86/kernel/pci-dma.c          | 20 --------------------
>  kernel/dma/mapping.c               |  7 -------
>  4 files changed, 43 deletions(-)

Feel free to route that through your DMA tree.

Reviewed-by: Thomas Gleixner <redacted>
```