ARM: constify machine_desc structure uses
struct machine_desc records are defined everywhere as a 'const'
structure, but unfortuantely it loses its const-ness through the use of
linker magic - the symbols which surround the section are not declared
const so it becomes possible not to use 'const' for pointers to these
const structures.
Let's fix this oversight - all pointers to these structures should be
marked const too.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 63af9a7a..8636299 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -72,10 +72,10 @@
__setup("fpe=", fpe_setup);
#endif
-extern void paging_init(struct machine_desc *desc);
+extern void paging_init(const struct machine_desc *desc);
extern void sanity_check_meminfo(void);
extern enum reboot_mode reboot_mode;
-extern void setup_dma_zone(struct machine_desc *desc);
+extern void setup_dma_zone(const struct machine_desc *desc);
unsigned int processor_id;
EXPORT_SYMBOL(processor_id);
@@ -139,7 +139,7 @@
static const char *cpu_name;
static const char *machine_name;
static char __initdata cmd_line[COMMAND_LINE_SIZE];
-struct machine_desc *machine_desc __initdata;
+const struct machine_desc *machine_desc __initdata;
static union { char c[4]; unsigned long l; } endian_test __initdata = { { 'l', '?', '?', 'b' } };
#define ENDIANNESS ((char)endian_test.l)
@@ -607,7 +607,7 @@
void __init dump_machine_table(void)
{
- struct machine_desc *p;
+ const struct machine_desc *p;
early_print("Available machine support:\n\nID (hex)\tNAME\n");
for_each_machine_desc(p)
@@ -694,7 +694,7 @@
}
early_param("mem", early_mem);
-static void __init request_standard_resources(struct machine_desc *mdesc)
+static void __init request_standard_resources(const struct machine_desc *mdesc)
{
struct memblock_region *region;
struct resource *res;
@@ -850,7 +850,7 @@
void __init setup_arch(char **cmdline_p)
{
- struct machine_desc *mdesc;
+ const struct machine_desc *mdesc;
setup_processor();
mdesc = setup_machine_fdt(__atags_pointer);
