ARM: fix PAGE_KERNEL

PAGE_KERNEL should not be executable; any area marked executable can be prefetched into the instruction cache. We don't want vmalloc areas to be read in this way. Signed-off-by: Russell King <[email protected]>
rtvt123 · Dec 24, 2009 · 6dc995a · 6dc995a
1 parent 52e8bfd
commit 6dc995a
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
@@ -453,8 +453,7 @@ static void __init build_mem_type_table(void)
 
 	pgprot_user   = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | user_pgprot);
 	pgprot_kernel = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG |
-				 L_PTE_DIRTY | L_PTE_WRITE |
-				 L_PTE_EXEC | kern_pgprot);
+				 L_PTE_DIRTY | L_PTE_WRITE | kern_pgprot);
 
 	mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
 	mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;