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of/fdt: Make fdt blob input parameters of unflatten functions const

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Operations to unflatten fdt blobs never modify the input blobs, hence
make them const. Now we no longer need to cast arbitrary const data to
"void *" when calling of_fdt_unflatten_tree().

Signed-off-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Rob Herring <[email protected]>
This commit is contained in:
Geert Uytterhoeven 2015-05-13 16:33:56 +02:00 • committed by Rob Herring
commit 3b1a2c9721
2 changed files with 4 additions and 4 deletions
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6
drivers/of/fdt.c
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@ -168,7 +168,7 @@ static void *unflatten_dt_alloc(void **mem, unsigned long size,
* @dad: Parent struct device_node
* @fpsize: Size of the node path up at the current depth.
*/
static void * unflatten_dt_node(void *blob,
static void * unflatten_dt_node(const void *blob,
void *mem,
int *poffset,
struct device_node *dad,
@ -378,7 +378,7 @@ static void * unflatten_dt_node(void *blob,
* @dt_alloc: An allocator that provides a virtual address to memory
* for the resulting tree
*/
static void __unflatten_device_tree(void *blob,
static void __unflatten_device_tree(const void *blob,
struct device_node **mynodes,
void * (*dt_alloc)(u64 size, u64 align))
{
@ -441,7 +441,7 @@ static void *kernel_tree_alloc(u64 size, u64 align)
* pointers of the nodes so the normal device-tree walking functions
* can be used.
*/
void of_fdt_unflatten_tree(unsigned long *blob,
void of_fdt_unflatten_tree(const unsigned long *blob,
struct device_node **mynodes)
{
__unflatten_device_tree(blob, mynodes, &kernel_tree_alloc);