x86: move dma_supported and dma_set_mask to pci-dma_32.c

This is the way x86_64 does, so this make them equal. They have
to be extern now in the header, and the extern definition is moved to
the common dma-mapping.h header.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 29 deletions

diff --git a/include/asm-x86/dma-mapping_32.h b/include/asm-x86/dma-mapping_32.h
index e60c30a88311..fd7246dddad4 100644
--- a/include/asm-x86/dma-mapping_32.h
+++ b/include/asm-x86/dma-mapping_32.h
@@ -17,35 +17,6 @@ dma_mapping_error(dma_addr_t dma_addr)
 extern int forbid_dac;
 
 static inline int
-dma_supported(struct device *dev, u64 mask)
-{
-        /*
-         * we fall back to GFP_DMA when the mask isn't all 1s,
-         * so we can't guarantee allocations that must be
-         * within a tighter range than GFP_DMA..
-         */
-        if(mask < 0x00ffffff)
-                return 0;
-
-        /* Work around chipset bugs */
-        if (forbid_dac > 0 && mask > 0xffffffffULL)
-                return 0;
-
-        return 1;
-}
-
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-        if(!dev->dma_mask || !dma_supported(dev, mask))
-                return -EIO;
-
-        *dev->dma_mask = mask;
-
-        return 0;
-}
-
-static inline int
 dma_get_cache_alignment(void)
 {
         /* no easy way to get cache size on all x86, so return the