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Subject[PATCH AUTOSEL 5.5 444/542] powerpc/ptdump: Fix W+X verification call in mark_rodata_ro()
Date
From: Christophe Leroy <christophe.leroy@c-s.fr>

[ Upstream commit e26ad936dd89d79f66c2b567f700e0c2a7103070 ]

ptdump_check_wx() also have to be called when pages are mapped
by blocks.

Fixes: 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/37517da8310f4457f28921a4edb88fb21d27b62a.1578989531.git.christophe.leroy@c-s.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/mm/pgtable_32.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 73b84166d06a6..5fb90edd865e6 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -218,6 +218,7 @@ void mark_rodata_ro(void)

if (v_block_mapped((unsigned long)_sinittext)) {
mmu_mark_rodata_ro();
+ ptdump_check_wx();
return;
}

--
2.20.1
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