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author | Bart Van Assche <bart.vanassche@sandisk.com> | 2017-01-20 13:04:04 -0800 |
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committer | Doug Ledford <dledford@redhat.com> | 2017-01-24 12:23:35 -0500 |
commit | 815dd18788fe0d41899f51b91d0560279cf16b0d (patch) | |
tree | 11d20f38f588ee9b18f3c655e2972c01430ba47c /arch/powerpc/include/asm/dma-mapping.h | |
parent | ca6e8e1031419549f67291ca31b43126f07cecdb (diff) | |
download | op-kernel-dev-815dd18788fe0d41899f51b91d0560279cf16b0d.zip op-kernel-dev-815dd18788fe0d41899f51b91d0560279cf16b0d.tar.gz |
treewide: Consolidate get_dma_ops() implementations
Introduce a new architecture-specific get_arch_dma_ops() function
that takes a struct bus_type * argument. Add get_dma_ops() in
<linux/dma-mapping.h>.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'arch/powerpc/include/asm/dma-mapping.h')
-rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 8275603..181a095 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -78,17 +78,14 @@ extern struct dma_map_ops dma_iommu_ops; #endif extern const struct dma_map_ops dma_direct_ops; -static inline const struct dma_map_ops *get_dma_ops(struct device *dev) +static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) { /* We don't handle the NULL dev case for ISA for now. We could * do it via an out of line call but it is not needed for now. The * only ISA DMA device we support is the floppy and we have a hack * in the floppy driver directly to get a device for us. */ - if (unlikely(dev == NULL)) - return NULL; - - return dev->dma_ops; + return NULL; } /* |