From 8008f6995d0c0cf22e7b4d60e95fe14085c10f35 Mon Sep 17 00:00:00 2001 From: Sang-Heon Jeon Date: Wed, 1 Jul 2026 00:04:09 +0900 Subject: [PATCH] riscv: remove unreachable invalid range check in kasan_init() 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 Reviewed-by: Charlie Jenkins Tested-by: Charlie Jenkins Reviewed-by: Andrey Ryabinin Link: https://patch.msgid.link/20260630150413.1718632-5-ekffu200098@gmail.com Signed-off-by: Mike Rapoport (Microsoft) --- arch/riscv/mm/kasan_init.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c index c4a2a9e5586e..1f3aa9611187 100644 --- a/arch/riscv/mm/kasan_init.c +++ b/arch/riscv/mm/kasan_init.c @@ -512,9 +512,6 @@ void __init kasan_init(void) void *start = (void *)__va(p_start); void *end = (void *)__va(p_end); - if (start >= end) - break; - kasan_populate(kasan_mem_to_shadow(start), kasan_mem_to_shadow(end)); }