[PATCH v5 05/15] mm/kasan/sw_tags: don't initialize kasan if it's disabled
From: Baoquan He <hidden>
Date: 2026-02-25 08:15:36
Also in:
linux-arm-kernel, linux-mm, linux-riscv, linux-s390, linux-um, lkml, loongarch
Subsystem:
kasan, memory management, the rest · Maintainers:
Andrey Ryabinin, Andrew Morton, Linus Torvalds
Here, kasan is disabled if specified 'kasan=off' in kernel cmdline. Signed-off-by: Baoquan He <redacted> --- mm/kasan/sw_tags.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/mm/kasan/sw_tags.c b/mm/kasan/sw_tags.c
index 6c1caec4261a..7757b69b1c86 100644
--- a/mm/kasan/sw_tags.c
+++ b/mm/kasan/sw_tags.c@@ -40,6 +40,10 @@ void __init kasan_init_sw_tags(void) { int cpu; + /* If KASAN is disabled via command line, don't initialize it. */ + if (kasan_arg_disabled) + return; + for_each_possible_cpu(cpu) per_cpu(prng_state, cpu) = (u32)get_cycles();
--
2.52.0