From 9f975356f7b17f2923a66b2f8bd505287ab4359c Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Mon, 6 Dec 2010 18:24:32 -0500
Subject: [PATCH] [IA64] Add DMA_ERROR_CODE define.

This piggybacks on git commit 8fd524b355daef0945692227e726fb444cebcd4f
("x86: Kill bad_dma_address variable") wherein we use now the
dma_map_ops->mapping_error to check for errors and the standard
check is against DMA_ERROR_CODE. Introduce it to the IA64 world.

CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 arch/ia64/include/asm/dma-mapping.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index a2e7368a0150..4336d080b241 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -12,6 +12,8 @@
 
 #define ARCH_HAS_DMA_GET_REQUIRED_MASK
 
+#define DMA_ERROR_CODE 0
+
 extern struct dma_map_ops *dma_ops;
 extern struct ia64_machine_vector ia64_mv;
 extern void set_iommu_machvec(void);
-- 
2.34.1