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[PATCH 33/44] openrisc: remove arch-specific dma_supported implementation

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  [PATCH 33/44] openrisc: remove arch-specific dma_supported implementation Christoph Hellwig <hch@lst.de> - 2017-06-08 15:40 +0200
    Re: [PATCH 33/44] openrisc: remove arch-specific dma_supported implementation Geert Uytterhoeven <geert@linux-m68k.org> - 2017-06-09 14:30 +0200
      Re: [PATCH 33/44] openrisc: remove arch-specific dma_supported         implementation Christoph Hellwig <hch@lst.de> - 2017-06-16 10:40 +0200

#1661179 — [PATCH 33/44] openrisc: remove arch-specific dma_supported implementation

This implementation is simply bogus - hexagon only has a simple
direct mapped DMA implementation and thus doesn't care about the
address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/openrisc/include/asm/dma-mapping.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index a4ea139c2ef9..f41bd3cb76d9 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -33,11 +33,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &or1k_dma_map_ops;
 }
 
-#define HAVE_ARCH_DMA_SUPPORTED 1
-static inline int dma_supported(struct device *dev, u64 dma_mask)
-{
-	/* Support 32 bit DMA mask exclusively */
-	return dma_mask == DMA_BIT_MASK(32);
-}
-
 #endif	/* __ASM_OPENRISC_DMA_MAPPING_H */
-- 
2.11.0

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#1662371

Hi Christoph,

On Thu, Jun 8, 2017 at 3:25 PM, Christoph Hellwig <hch@lst.de> wrote:
> This implementation is simply bogus - hexagon only has a simple

openrisc?

> direct mapped DMA implementation and thus doesn't care about the
> address.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/openrisc/include/asm/dma-mapping.h | 7 -------

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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#1667523 — Re: [PATCH 33/44] openrisc: remove arch-specific dma_supported implementation

On Fri, Jun 09, 2017 at 02:20:42PM +0200, Geert Uytterhoeven wrote:
> Hi Christoph,
> 
> On Thu, Jun 8, 2017 at 3:25 PM, Christoph Hellwig <hch@lst.de> wrote:
> > This implementation is simply bogus - hexagon only has a simple
> 
> openrisc?

Yeah.

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