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fore200e: devirtualize dma alloc calls

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There is no need for an indirection before calling the dma alloc
routines now that we store a struct device in struct fore200e.

Also remove the pointless GFP_ATOMIC for the sbus case, and fix the
up the error handling by removing the 0 dma_addr test - some iommus
can return 0 as a perfectly valid bus address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig
2018-10-09 16:57:18 +02:00
committed by David S. Miller
parent f3fadcb564
commit 1335d6fd65
2 changed files with 45 additions and 85 deletions
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drivers/atm/fore200e.h
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@@ -805,8 +805,6 @@ typedef struct fore200e_bus {
int status_alignment; /* status words DMA alignment requirement */
u32 (*read)(volatile u32 __iomem *);
void (*write)(u32, volatile u32 __iomem *);
int (*dma_chunk_alloc)(struct fore200e*, struct chunk*, int, int, int);
void (*dma_chunk_free)(struct fore200e*, struct chunk*);
int (*configure)(struct fore200e*);
int (*map)(struct fore200e*);
void (*reset)(struct fore200e*);