[PATCH 2/7] logic_pio: Constify fwnode_handle

From: Rob Herring (Arm)
Date: Thu Oct 10 2024 - 12:28:31 EST


The fwnode_handle passed into find_io_range_by_fwnode() and
logic_pio_trans_hwaddr() are not modified, so make them const.

Signed-off-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
---
Please ack and I'll take with the rest of the series.
---
include/linux/logic_pio.h | 6 +++---
lib/logic_pio.c | 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/logic_pio.h b/include/linux/logic_pio.h
index babf4e3c28ba..8f1a9408302f 100644
--- a/include/linux/logic_pio.h
+++ b/include/linux/logic_pio.h
@@ -17,7 +17,7 @@ enum {

struct logic_pio_hwaddr {
struct list_head list;
- struct fwnode_handle *fwnode;
+ const struct fwnode_handle *fwnode;
resource_size_t hw_start;
resource_size_t io_start;
resource_size_t size; /* range size populated */
@@ -110,8 +110,8 @@ void logic_outsl(unsigned long addr, const void *buffer, unsigned int count);
#endif /* CONFIG_INDIRECT_PIO */
#define MMIO_UPPER_LIMIT (IO_SPACE_LIMIT - PIO_INDIRECT_SIZE)

-struct logic_pio_hwaddr *find_io_range_by_fwnode(struct fwnode_handle *fwnode);
-unsigned long logic_pio_trans_hwaddr(struct fwnode_handle *fwnode,
+struct logic_pio_hwaddr *find_io_range_by_fwnode(const struct fwnode_handle *fwnode);
+unsigned long logic_pio_trans_hwaddr(const struct fwnode_handle *fwnode,
resource_size_t hw_addr, resource_size_t size);
int logic_pio_register_range(struct logic_pio_hwaddr *newrange);
void logic_pio_unregister_range(struct logic_pio_hwaddr *range);
diff --git a/lib/logic_pio.c b/lib/logic_pio.c
index 2ea564a40064..e29496a38d06 100644
--- a/lib/logic_pio.c
+++ b/lib/logic_pio.c
@@ -122,7 +122,7 @@ void logic_pio_unregister_range(struct logic_pio_hwaddr *range)
*
* Traverse the io_range_list to find the registered node for @fwnode.
*/
-struct logic_pio_hwaddr *find_io_range_by_fwnode(struct fwnode_handle *fwnode)
+struct logic_pio_hwaddr *find_io_range_by_fwnode(const struct fwnode_handle *fwnode)
{
struct logic_pio_hwaddr *range, *found_range = NULL;

@@ -186,7 +186,7 @@ resource_size_t logic_pio_to_hwaddr(unsigned long pio)
*
* Returns Logical PIO value if successful, ~0UL otherwise
*/
-unsigned long logic_pio_trans_hwaddr(struct fwnode_handle *fwnode,
+unsigned long logic_pio_trans_hwaddr(const struct fwnode_handle *fwnode,
resource_size_t addr, resource_size_t size)
{
struct logic_pio_hwaddr *range;

--
2.45.2