[PATCH] powerpc/64s: Make mmu_hash_ops __ro_after_init

[Michael Ellerman]

The mmu_hash_ops are only assigned to during boot, so mark them
__ro_after_init to prevent any further modification.

Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
---
 arch/powerpc/mm/book3s64/hash_utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c
index 01c3b4b65241..845fb7ef0ad3 100644
--- a/arch/powerpc/mm/book3s64/hash_utils.c
+++ b/arch/powerpc/mm/book3s64/hash_utils.c
@@ -125,7 +125,7 @@ int mmu_ci_restrictions;
 #endif
 static u8 *linear_map_hash_slots;
 static unsigned long linear_map_hash_count;
-struct mmu_hash_ops mmu_hash_ops;
+struct mmu_hash_ops mmu_hash_ops __ro_after_init;
 EXPORT_SYMBOL(mmu_hash_ops);
 
 /*
-- 
2.46.0