ARM: dma-mapping: check DMA mask against available memory

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Some buses have negative offsets, which causes the DMA mask checks to
falsely fail.  Fix this by using the actual amount of memory fitted in
the system.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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Russell King 2013-11-25 21:52:25 +00:00

parent 6ce4eac1f6

commit 11a5aa3256

1 changed files with 7 additions and 2 deletions

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arch/arm/mm/dma-mapping.c

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