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dmaengine: dw-edma: fix unnecessary stack usage 

Putting large constant data on the stack causes unnecessary overhead
and stack usage:

drivers/dma/dw-edma/dw-edma-v0-debugfs.c:285:6: error: stack frame size of 1376 bytes in function 'dw_edma_v0_debugfs_on' [-Werror,-Wframe-larger-than=]

Mark the variable 'static const' in order for the compiler to move it
into the .rodata section where it does no such harm.

Fixes: 305aebeff8 ("dmaengine: Add Synopsys eDMA IP version 0 debugfs support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Link: https://lore.kernel.org/r/20190722124457.1093886-1-arnd@arndb.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Arnd Bergmann 2019-07-22 14:44:43 +02:00 committed by Vinod Koul
parent 5f9e832c13
commit f0414087a1
1 changed files with 1 additions and 1 deletions
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2
drivers/dma/dw-edma/dw-edma-v0-debugfs.c
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@ -48,7 +48,7 @@ static struct {
} lim[2][EDMA_V0_MAX_NR_CH];
struct debugfs_entries {
char name[24];
const char *name;
dma_addr_t *reg;
};