[PATCH v3 2/8] LoongArch: remove unreachable invalid range check in kasan_init()
From: Sang-Heon Jeon
Date: Tue Jun 30 2026 - 11:05:57 EST
kasan_init() populates the linear mapping shadow with for_each_mem_range()
and breaks the loop when start >= end. for_each_mem_range() never returns
an invalid range, so start < end always.
Therefore the start >= end check is unreachable, so remove it.
No functional change.
Signed-off-by: Sang-Heon Jeon <ekffu200098@xxxxxxxxx>
Reviewed-by: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
---
arch/loongarch/mm/kasan_init.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/loongarch/mm/kasan_init.c b/arch/loongarch/mm/kasan_init.c
index 0fc02ca06457..92ca0ba86406 100644
--- a/arch/loongarch/mm/kasan_init.c
+++ b/arch/loongarch/mm/kasan_init.c
@@ -305,9 +305,6 @@ void __init kasan_init(void)
void *start = (void *)phys_to_virt(pa_start);
void *end = (void *)phys_to_virt(pa_end);
- if (start >= end)
- break;
-
kasan_map_populate((unsigned long)mem_to_shadow(start),
(unsigned long)mem_to_shadow(end), NUMA_NO_NODE);
}
--
2.43.0