From 84b3da1498943840005d7d5652caf4fe6fd333e6 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 3 May 2013 15:31:58 +0100 Subject: [PATCH] dmaengine: ste_dma40: Remove home-brew MAX() macro The current implementation of the DMA40's local MAX() macro evaluates its arguments more times than is necessary and it not type checked. This patch strips replaces it with a new, more efficient constant. Cc: Dan Williams Cc: Per Forlin Cc: Rabin Vincent Acked-by: Vinod Koul Reported-by: Harvey Harrison Signed-off-by: Lee Jones Signed-off-by: Linus Walleij --- drivers/dma/ste_dma40.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 63495f6a36f9..367ef15a3cd8 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -53,8 +53,6 @@ #define D40_ALLOC_PHY (1 << 30) #define D40_ALLOC_LOG_FREE 0 -#define MAX(a, b) (((a) < (b)) ? (b) : (a)) - /* Reserved event lines for memcpy only. */ #define DB8500_DMA_MEMCPY_EV_0 51 #define DB8500_DMA_MEMCPY_EV_1 56 @@ -216,6 +214,9 @@ static u32 d40_backup_regs_chan[] = { D40_CHAN_REG_SDLNK, }; +#define BACKUP_REGS_SZ_MAX ((BACKUP_REGS_SZ_V4A > BACKUP_REGS_SZ_V4B) ? \ + BACKUP_REGS_SZ_V4A : BACKUP_REGS_SZ_V4B) + /** * struct d40_interrupt_lookup - lookup table for interrupt handler * @@ -579,7 +580,7 @@ struct d40_base { resource_size_t lcpa_size; struct kmem_cache *desc_slab; u32 reg_val_backup[BACKUP_REGS_SZ]; - u32 reg_val_backup_v4[MAX(BACKUP_REGS_SZ_V4A, BACKUP_REGS_SZ_V4B)]; + u32 reg_val_backup_v4[BACKUP_REGS_SZ_MAX]; u32 *reg_val_backup_chan; u16 gcc_pwr_off_mask; bool initialized; -- 2.30.2