[PATCH] ARM: mmu: fix <unknown> mapping print

Sascha Hauer s.hauer at pengutronix.de
Fri Aug 29 06:11:42 PDT 2025


Mask out the ARCH_MAP_FLAG_PAGEWISE bit in map_type_tostr(). Otherwise
mapping types with this bit set end up being <unknown>.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/cpu/mmu-common.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/cpu/mmu-common.c b/arch/arm/cpu/mmu-common.c
index 46982b00b7..033ba01ea4 100644
--- a/arch/arm/cpu/mmu-common.c
+++ b/arch/arm/cpu/mmu-common.c
@@ -18,6 +18,8 @@
 
 const char *map_type_tostr(maptype_t map_type)
 {
+	map_type &= ~ARCH_MAP_FLAG_PAGEWISE;
+
 	switch (map_type) {
 	case ARCH_MAP_CACHED_RWX:	return "RWX";
 	case ARCH_MAP_CACHED_RO:	return "RO";
-- 
2.47.2




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