[PATCH v2 2/2] MIPS: Add writable-applies-readable policy with pgrot

[Bibo Mao]

On Linux system, writable applies readable privilege in most
architectures, this patch adds this policy on MIPS platform
where hardware rixi is supported.

Signed-off-by: Bibo Mao <maob...@loongson.cn>
---
 arch/mips/mm/cache.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index f814e43..dae0617 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -160,7 +160,7 @@ static inline void setup_protection_map(void)
        if (cpu_has_rixi) {
                protection_map[0]  = __pgprot(__PC | __PP | __NX | __NR);
                protection_map[1]  = __pgprot(__PC | __PP | __NX | ___R);
-               protection_map[2]  = __pgprot(__PC | __PP | __NX | __NR);
+               protection_map[2]  = __pgprot(__PC | __PP | __NX | ___R);
                protection_map[3]  = __pgprot(__PC | __PP | __NX | ___R);
                protection_map[4]  = __pgprot(__PC | __PP | ___R);
                protection_map[5]  = __pgprot(__PC | __PP | ___R);
@@ -169,7 +169,7 @@ static inline void setup_protection_map(void)
 
                protection_map[8]  = __pgprot(__PC | __PP | __NX | __NR);
                protection_map[9]  = __pgprot(__PC | __PP | __NX | ___R);
-               protection_map[10] = __pgprot(__PC | __PP | __NX | ___W | __NR);
+               protection_map[10] = __pgprot(__PC | __PP | __NX | ___W | ___R);
                protection_map[11] = __pgprot(__PC | __PP | __NX | ___W | ___R);
                protection_map[12] = __pgprot(__PC | __PP | ___R);
                protection_map[13] = __pgprot(__PC | __PP | ___R);
-- 
1.8.3.1