powerpc/kernel: Add __init attribute to eligible functions

Some functions defined in `arch/powerpc/kernel` (and one in `arch/powerpc/
kexec`) are deserving of an `__init` macro attribute. These functions are
only called by other initialization functions and therefore should inherit
the attribute.
Also, change function declarations in header files to include `__init`.

Signed-off-by: Nick Child <nick.child@ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211216220035.605465-2-nick.child@ibm.com

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 75678ff04dd7..4c4a047f691c 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -447,7 +447,7 @@ static int __init early_init_dt_scan_chosen_ppc(unsigned long node,
  */
 
 #ifdef CONFIG_SPARSEMEM
-static bool validate_mem_limit(u64 base, u64 *size)
+static bool __init validate_mem_limit(u64 base, u64 *size)
 {
 	u64 max_mem = 1UL << (MAX_PHYSMEM_BITS);
 
@@ -458,7 +458,7 @@ static bool validate_mem_limit(u64 base, u64 *size)
 	return true;
 }
 #else
-static bool validate_mem_limit(u64 base, u64 *size)
+static bool __init validate_mem_limit(u64 base, u64 *size)
 {
 	return true;
 }