starfire: Fix dma_addr_t size test for MIPS

Commit 56543af "starfire: use BUILD_BUG_ON for netdrv_addr_t" revealed that the preprocessor condition used to find the size of dma_addr_t yielded the wrong result for some architectures and configurations. This was kluged for 64-bit PowerPC in commit 3e502e6 by adding yet another case to the condition. However, 64-bit MIPS configurations are not detected reliably either.

This should be fixed by using CONFIG_ARCH_DMA_ADDR_T_64BIT, but that isn't yet defined everywhere it should be.

---
The MIPS conditions are changed to match those Tomonori specified for CONFIG_ARCH_DMA_ADDR_T_64BIT.

Please change the condition to defined(CONFIG_ARCH_DMA_ADDR_T_64BIT) in net-next-2.6. I leave it up to you to decide when to make that change. (Simply applying a patch to net-next-2.6 now will result in a later merge conflict and breakage for those two architectures.)

Ben.

 drivers/net/starfire.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

index 4adf124..a4f2bd5 100644
@@ -148,7 +148,7 @@ static int full_duplex[MAX_UNITS] = {0, };
  * This SUCKS.
  * We need a much better method to determine if dma_addr_t is 64-bit.
  */
-#if (defined(__i386__) && defined(CONFIG_HIGHMEM64G)) || defined(__x86_64__) || defined (__ia64__) || defined(__alpha__) || defined(__mips64__) || (defined(__mips__) && defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR)) || (defined(__powerpc64__) || defined(CONFIG_PHYS_64BIT))
+#if (defined(__i386__) && defined(CONFIG_HIGHMEM64G)) || defined(__x86_64__) || defined (__ia64__) || defined(__alpha__) || (defined(CONFIG_MIPS) && ((defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR)) || defined(CONFIG_64BIT))) || (defined(__powerpc64__) || defined(CONFIG_PHYS_64BIT))
 /* 64-bit dma_addr_t */
 #define ADDR_64BITS	/* This chip uses 64 bit addresses. */
 #define netdrv_addr_t __le64

1.7.2.3

From: Ben Hutchings <[email protected]>
Date: Wed, 29 Dec 2010 14:26:17 +0000

Applied to net-2.6, thanks.

The thing to do here is to make this change after the next merge window takes in Fujita's patch definiting ARCH_DMA_ADDR_T_64BIT from the -mm set.