Commit 4c0eee50 authored by Colin Ian King's avatar Colin Ian King Committed by Vinod Koul
Browse files

dmaengine: sh: make array ds_lut static 



Don't populate the read-only array ds_lut on the stack but instead it
static. Also makes the object code smaller by 163 bytes:

Before:
   text    data     bss     dec     hex filename
  23508    4796       0   28304    6e90 ./drivers/dma/sh/rz-dmac.o

After:
   text    data     bss     dec     hex filename
  23281    4860       0   28141    6ded ./drivers/dma/sh/rz-dmac.o

(gcc version 11.2.0)

Signed-off-by: default avatarColin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210915112038.12407-1-colin.king@canonical.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 9bf9e0b4

drivers/dma/sh/rz-dmac.c

+1 −1
Original line number Diff line number Diff line
@@ -574,7 +574,7 @@ static void rz_dmac_issue_pending(struct dma_chan *chan) 
static u8 rz_dmac_ds_to_val_mapping(enum dma_slave_buswidth ds)

{

	u8 i;

	const enum dma_slave_buswidth ds_lut[] = {

	static const enum dma_slave_buswidth ds_lut[] = {

		DMA_SLAVE_BUSWIDTH_1_BYTE,

		DMA_SLAVE_BUSWIDTH_2_BYTES,

		DMA_SLAVE_BUSWIDTH_4_BYTES,