On Fri, Jan 20, 2017 at 01:04:03PM -0800, Bart Van Assche wrote:
> Now that all set_dma_ops() implementations are identical (ignoring
> BUG_ON() statements), remove the architecture specific definitions
> and add a definition in <linux/dma-mapping.h>.
>
> Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> Cc: Chris Metcalf <cmetcalf@xxxxxxxxxxxx>
> Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
> Cc: linux-arch@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
> Cc: Paul Mackerras <paulus@xxxxxxxxx>
> Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
Thanks.
> ---
> arch/arm/include/asm/dma-mapping.h | 6 ------
> arch/powerpc/include/asm/dma-mapping.h | 5 -----
> arch/tile/include/asm/dma-mapping.h | 5 -----
> include/linux/dma-mapping.h | 5 +++++
> 4 files changed, 5 insertions(+), 16 deletions(-)
>
> diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
> index 312f4d0564d6..c7432d647e53 100644
> --- a/arch/arm/include/asm/dma-mapping.h
> +++ b/arch/arm/include/asm/dma-mapping.h
> @@ -31,12 +31,6 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
> return __generic_dma_ops(dev);
> }
>
> -static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
> -{
> - BUG_ON(!dev);
> - dev->dma_ops = ops;
> -}
> -
> #define HAVE_ARCH_DMA_SUPPORTED 1
> extern int dma_supported(struct device *dev, u64 mask);
>
> diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
> index 59fbd4abcbf8..8275603ba4d5 100644
> --- a/arch/powerpc/include/asm/dma-mapping.h
> +++ b/arch/powerpc/include/asm/dma-mapping.h
> @@ -91,11 +91,6 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
> return dev->dma_ops;
> }
>
> -static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
> -{
> - dev->dma_ops = ops;
> -}
> -
> /*
> * get_dma_offset()
> *
> diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
> index c0620697eaad..2562995a6ac9 100644
> --- a/arch/tile/include/asm/dma-mapping.h
> +++ b/arch/tile/include/asm/dma-mapping.h
> @@ -59,11 +59,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
>
> static inline void dma_mark_clean(void *addr, size_t size) {}
>
> -static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
> -{
> - dev->dma_ops = ops;
> -}
> -
> static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
> {
> if (!dev->dma_mask)
> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index f1da68b82c63..e97f23e8b2d9 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -164,6 +164,11 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
>
> #ifdef CONFIG_HAS_DMA
> #include <asm/dma-mapping.h>
> +static inline void set_dma_ops(struct device *dev,
> + const struct dma_map_ops *dma_ops)
> +{
> + dev->dma_ops = dma_ops;
> +}
> #else
> /*
> * Define the dma api to allow compilation but not linking of
> --
> 2.11.0
>
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