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Diffstat (limited to 'arch/powerpc/mm/ptdump/ptdump.c')
-rw-r--r--arch/powerpc/mm/ptdump/ptdump.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c
index 2f9ddc29c535..206156255247 100644
--- a/arch/powerpc/mm/ptdump/ptdump.c
+++ b/arch/powerpc/mm/ptdump/ptdump.c
@@ -24,6 +24,8 @@
#include <asm/page.h>
#include <asm/pgalloc.h>
+#include <mm/mmu_decl.h>
+
#include "ptdump.h"
/*
@@ -173,10 +175,12 @@ static void dump_addr(struct pg_state *st, unsigned long addr)
static void note_prot_wx(struct pg_state *st, unsigned long addr)
{
+ pte_t pte = __pte(st->current_flags);
+
if (!IS_ENABLED(CONFIG_PPC_DEBUG_WX) || !st->check_wx)
return;
- if (!((st->current_flags & pgprot_val(PAGE_KERNEL_X)) == pgprot_val(PAGE_KERNEL_X)))
+ if (!pte_write(pte) || !pte_exec(pte))
return;
WARN_ONCE(1, "powerpc/mm: Found insecure W+X mapping at address %p/%pS\n",