From: Baoquan He <bhe@redhat.com>
To: linux-mm@kvack.org
Cc: ryabinin.a.a@gmail.com, andreyknvl@gmail.com, glider@google.com,
dvyukov@google.com, vincenzo.frascino@arm.com,
akpm@linux-foundation.org, kasan-dev@googlegroups.com,
linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
elver@google.com, sj@kernel.org, lorenzo.stoakes@oracle.com,
snovitoll@gmail.com, christophe.leroy@csgroup.eu,
Baoquan He <bhe@redhat.com>
Subject: [PATCH v4 03/12] mm/kasan/sw_tags: don't initialize kasan if it's disabled
Date: Fri, 28 Nov 2025 11:33:11 +0800 [thread overview]
Message-ID: <20251128033320.1349620-4-bhe@redhat.com> (raw)
In-Reply-To: <20251128033320.1349620-1-bhe@redhat.com>
Signed-off-by: Baoquan He <bhe@redhat.com>
---
mm/kasan/sw_tags.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/kasan/sw_tags.c b/mm/kasan/sw_tags.c
index 6c1caec4261a..58edb68efc09 100644
--- a/mm/kasan/sw_tags.c
+++ b/mm/kasan/sw_tags.c
@@ -40,6 +40,9 @@ void __init kasan_init_sw_tags(void)
{
int cpu;
+ if (kasan_arg_disabled)
+ return;
+
for_each_possible_cpu(cpu)
per_cpu(prng_state, cpu) = (u32)get_cycles();
--
2.41.0
next prev parent reply other threads:[~2025-11-28 3:34 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-28 3:33 [PATCH v4 00/12] mm/kasan: make kasan=on|off work for all three modes Baoquan He
2025-11-28 3:33 ` [PATCH v4 01/12] mm/kasan: add conditional checks in functions to return directly if kasan is disabled Baoquan He
2025-12-04 16:38 ` Andrey Konovalov
2025-12-05 7:20 ` Baoquan He
2025-12-05 15:07 ` Andrey Konovalov
2025-11-28 3:33 ` [PATCH v4 02/12] mm/kasan: move kasan= code to common place Baoquan He
2025-12-04 16:39 ` Andrey Konovalov
2025-11-28 3:33 ` Baoquan He [this message]
2025-12-04 16:40 ` [PATCH v4 03/12] mm/kasan/sw_tags: don't initialize kasan if it's disabled Andrey Konovalov
2025-11-28 3:33 ` [PATCH v4 04/12] arch/arm: " Baoquan He
2025-11-28 3:33 ` [PATCH v4 05/12] arch/arm64: " Baoquan He
2025-11-28 3:33 ` [PATCH v4 06/12] arch/loongarch: " Baoquan He
2025-11-28 3:33 ` [PATCH v4 07/12] arch/powerpc: " Baoquan He
2025-11-28 3:33 ` [PATCH v4 08/12] arch/riscv: " Baoquan He
2025-11-28 3:33 ` [PATCH v4 09/12] arch/x86: " Baoquan He
2025-11-28 3:33 ` [PATCH v4 10/12] arch/xtensa: " Baoquan He
2025-11-28 3:33 ` [PATCH v4 11/12] arch/um: " Baoquan He
2025-12-01 10:56 ` Johannes Berg
2025-12-02 13:13 ` Baoquan He
2025-11-28 3:33 ` [PATCH v4 12/12] mm/kasan: make kasan=on|off take effect for all three modes Baoquan He
2025-11-28 15:50 ` Alexander Potapenko
2025-11-30 2:49 ` Baoquan He
2025-12-04 16:40 ` Andrey Konovalov
2025-12-04 16:38 ` [PATCH v4 00/12] mm/kasan: make kasan=on|off work " Andrey Konovalov
2025-12-05 7:14 ` Baoquan He
2025-12-05 11:03 ` Heiko Carstens
2025-12-05 12:57 ` Baoquan He
2025-12-05 15:07 ` Andrey Konovalov
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