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[PARISC] Make DMA routines more stubby

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We were pretending to use the GENERIC_ISA_DMA routines, but never
selected that symbol.  Since ISA DMA is known to not work right now,
just remove the attempts to acquire the dma_spin_lock to fix compile
warnings.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This commit is contained in:
Matthew Wilcox 2006-09-20 20:36:42 -06:00 committed by Matthew Wilcox
parent f312094556
commit 99b6e9be71
1 changed files with 1 additions and 6 deletions
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7
include/asm-parisc/dma.h
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@ -72,18 +72,13 @@
#define DMA2_MASK_ALL_REG 0xDE /* all-channels mask (w) */ #define DMA2_MASK_ALL_REG 0xDE /* all-channels mask (w) */
#define DMA2_EXT_MODE_REG (0x400 | DMA2_MODE_REG) #define DMA2_EXT_MODE_REG (0x400 | DMA2_MODE_REG)
extern spinlock_t dma_spin_lock;
static __inline__ unsigned long claim_dma_lock(void) static __inline__ unsigned long claim_dma_lock(void)
{ {
unsigned long flags; return 0;
spin_lock_irqsave(&dma_spin_lock, flags);
return flags;
} }
static __inline__ void release_dma_lock(unsigned long flags) static __inline__ void release_dma_lock(unsigned long flags)
{ {
spin_unlock_irqrestore(&dma_spin_lock, flags);
} }