https://github.com/torvalds/linux
Revision 90cde5584a34e210850728bebee4c6fb1a7124ba authored by Andre Przywara on 14 September 2015, 16:49:02 UTC, committed by Russell King on 16 September 2015, 22:58:46 UTC
Commit 96231b2686b5: ("ARM: 8419/1: dma-mapping: harmonize definition
of DMA_ERROR_CODE") changed the definition of DMA_ERROR_CODE to use
dma_addr_t, which makes the compiler barf on assigning this to an
"int" variable on ARM with LPAE enabled:
*************
In file included from /src/linux/include/linux/dma-mapping.h:86:0,
from /src/linux/arch/arm/mm/dma-mapping.c:21:
/src/linux/arch/arm/mm/dma-mapping.c: In function '__iommu_create_mapping':
/src/linux/arch/arm/include/asm/dma-mapping.h:16:24: warning:
overflow in implicit constant conversion [-Woverflow]
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
^
/src/linux/arch/arm/mm/dma-mapping.c:1252:15: note: in expansion of
macro DMA_ERROR_CODE'
int i, ret = DMA_ERROR_CODE;
^
*************
Remove the actually unneeded initialization of "ret" in
__iommu_create_mapping() and move the variable declaration inside the
for-loop to make the scope of this variable more clear.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1 parent 12fc730
Tip revision: 90cde5584a34e210850728bebee4c6fb1a7124ba authored by Andre Przywara on 14 September 2015, 16:49:02 UTC
ARM: 8437/1: dma-mapping: fix build warning with new DMA_ERROR_CODE definition
ARM: 8437/1: dma-mapping: fix build warning with new DMA_ERROR_CODE definition
Tip revision: 90cde55
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