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>

1 files changed, 6 insertions, 6 deletions

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 63af9a7ae512..863629989f02 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -72,10 +72,10 @@ static int __init fpe_setup(char *line)
 __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 @@ EXPORT_SYMBOL(elf_platform);
 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 @@ static void __init setup_processor(void)
 
 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 @@ static int __init early_mem(char *p)
 }
 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 hyp_mode_check(void)
 
 void __init setup_arch(char **cmdline_p)
 {
-        struct machine_desc *mdesc;
+        const struct machine_desc *mdesc;
 
         setup_processor();
         mdesc = setup_machine_fdt(__atags_pointer);