dma: Make the 'mask' parameter of __dma_request_channel const

[deliverable/linux.git] / drivers / dma / dmaengine.c

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index b2728d6ba2fdea97774d904bcd04f58d12187772..d07ef7dc04ec1f6a391eaf3ee553373264a72e86 100644 (file)
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -174,7 +174,8 @@ static struct class dma_devclass = {
 #define dma_device_satisfies_mask(device, mask) \
        __dma_device_satisfies_mask((device), &(mask))
 static int
-__dma_device_satisfies_mask(struct dma_device *device, dma_cap_mask_t *want)
+__dma_device_satisfies_mask(struct dma_device *device,
+                           const dma_cap_mask_t *want)
 {
        dma_cap_mask_t has;
 
@@ -463,7 +464,8 @@ static void dma_channel_rebalance(void)
                }
 }
 
-static struct dma_chan *private_candidate(dma_cap_mask_t *mask, struct dma_device *dev,
+static struct dma_chan *private_candidate(const dma_cap_mask_t *mask,
+                                         struct dma_device *dev,
                                          dma_filter_fn fn, void *fn_param)
 {
        struct dma_chan *chan;
@@ -505,7 +507,8 @@ static struct dma_chan *private_candidate(dma_cap_mask_t *mask, struct dma_devic
  * @fn: optional callback to disposition available channels
  * @fn_param: opaque parameter to pass to dma_filter_fn
  */
-struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, void *fn_param)
+struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
+                                      dma_filter_fn fn, void *fn_param)
 {
        struct dma_device *device, *_d;
        struct dma_chan *chan = NULL;