When HAS_DMA, and also need use generic implementation, HAVE_DMA_ATTR
must be enabled, or can not pass compiling with allmodconfig, the
related error:
CC [M] drivers/ata/libata-core.o
drivers/ata/libata-core.c: In function 'ata_sg_clean':
drivers/ata/libata-core.c:4598:3: error: implicit declaration of function
'dma_unmap_sg' [-Werror=implicit-function-declaration]
drivers/ata/libata-core.c: In function 'ata_sg_setup':
drivers/ata/libata-core.c:4708:2: error: implicit declaration of function
'dma_map_sg' [-Werror=implicit-function-declaration]
"linux/dma-mapping.h" will include "asm/dma-mapping.h", so need remove
"linux/dma-mapping.h" from "asm/dma-mapping.h",
Signed-off-by: Chen Gang <gang.chen.5...@gmail.com>
---
arch/hexagon/Kconfig | 1 +
arch/hexagon/include/asm/dma-mapping.h | 1 -
2 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 09df260..fbc5c78 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -28,6 +28,7 @@ config HEXAGON
select GENERIC_CLOCKEVENTS_BROADCAST
select MODULES_USE_ELF_RELA
select GENERIC_CPU_DEVICES
+ select HAVE_DMA_ATTRS
---help---
Qualcomm Hexagon is a processor architecture designed for high
performance and low power across a wide variety of applications.
diff --git a/arch/hexagon/include/asm/dma-mapping.h
b/arch/hexagon/include/asm/dma-mapping.h
index 85e9935..1696542 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -25,7 +25,6 @@
#include <linux/cache.h>
#include <linux/mm.h>
#include <linux/scatterlist.h>
-#include <linux/dma-mapping.h>
#include <linux/dma-debug.h>
#include <linux/dma-attrs.h>
#include <asm/io.h>
--
1.7.7.6
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