firewire: mark some structs const
Instances of struct file_operations and struct fw_card_driver can be
qualified as "const". Ditto with struct fw_descriptor.data, struct
fw_device_id, and predefined instances of struct fw_address_region,
at least in the current implementation.
Data qualified as const is placed into the .rodata section which won't
be mixed with dirty data.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
index affd420..a72f502 100644
--- a/drivers/firewire/fw-transaction.c
+++ b/drivers/firewire/fw-transaction.c
@@ -331,15 +331,15 @@
static DEFINE_SPINLOCK(address_handler_lock);
static LIST_HEAD(address_handler_list);
-struct fw_address_region fw_low_memory_region =
+const struct fw_address_region fw_low_memory_region =
{ 0x000000000000ull, 0x000100000000ull };
-struct fw_address_region fw_high_memory_region =
+const struct fw_address_region fw_high_memory_region =
{ 0x000100000000ull, 0xffffe0000000ull };
-struct fw_address_region fw_private_region =
+const struct fw_address_region fw_private_region =
{ 0xffffe0000000ull, 0xfffff0000000ull };
-struct fw_address_region fw_csr_region =
+const struct fw_address_region fw_csr_region =
{ 0xfffff0000000ULL, 0xfffff0000800ull };
-struct fw_address_region fw_unit_space_region =
+const struct fw_address_region fw_unit_space_region =
{ 0xfffff0000900ull, 0x1000000000000ull };
EXPORT_SYMBOL(fw_low_memory_region);
@@ -358,7 +358,7 @@
int
fw_core_add_address_handler(struct fw_address_handler *handler,
- struct fw_address_region *region)
+ const struct fw_address_region *region)
{
struct fw_address_handler *other;
unsigned long flags;
@@ -684,7 +684,7 @@
MODULE_DESCRIPTION("Core IEEE1394 transaction logic");
MODULE_LICENSE("GPL");
-static u32 vendor_textual_descriptor_data[] = {
+static const u32 vendor_textual_descriptor_data[] = {
/* textual descriptor leaf () */
0x00080000,
0x00000000,