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dma: of: Remove check on always true condition

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Both of_dma_nbcells field of the of_dma_controller and the args_count field of
the dma_spec are initialized by parsing the #dma-cells attribute of their device
tree node. So if the device tree nodes of a DMA controller and the dma_spec
match this means that of_dma_nbcells and args_count will also match. So the
second test in the of_dma_find_controller loop is redundant because given the
first test yields true the second test will also yield true. So we can safely
remove the test whether of_dma_nbcells matches args_count. Since this was the
last user of the of_dma_nbcells field we can remove it altogether.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Lars-Peter Clausen
2013-04-22 10:33:33 +02:00
committed by Vinod Koul
parent ff0e0f4f56
commit 8552bb4f16
2 changed files with 1 additions and 14 deletions
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1
include/linux/of_dma.h
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@@ -21,7 +21,6 @@ struct device_node;
struct of_dma {
struct list_head of_dma_controllers;
struct device_node *of_node;
int of_dma_nbcells;
struct dma_chan *(*of_dma_xlate)
(struct of_phandle_args *, struct of_dma *);
void *of_dma_data;