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Wed, 20 Aug 2025 05:37:03 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (unknown [10.72.112.99]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 2ED4819560B0; Wed, 20 Aug 2025 05:36:54 +0000 (UTC) From: Baoquan He 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, sj@kernel.org, lorenzo.stoakes@oracle.com, elver@google.com, snovitoll@gmail.com, christophe.leroy@csgroup.eu, Baoquan He Subject: [PATCH v3 12/12] mm/kasan: make kasan=on|off take effect for all three modes Date: Wed, 20 Aug 2025 13:34:59 +0800 Message-ID: <20250820053459.164825-13-bhe@redhat.com> In-Reply-To: <20250820053459.164825-1-bhe@redhat.com> References: <20250820053459.164825-1-bhe@redhat.com> MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 6DBCB1A0003 X-Stat-Signature: 4qjugrxonet6uwb71q9t4iybmeofpskh X-HE-Tag: 1755668229-985967 X-HE-Meta: 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 RlRgEwcq MaWDjw/w9cDwHNdtMq77kgNIdeCLg5vxX9MDQJm1XJopURYjxt17ImKOBOr5PJ/KBHmhNOJzOExhfYTPgjv/TZM3uhQHaSn/TT3kz4kKPIyLLC34HHspyZ8AbTDoz8XzM/ju8xY2osUUM120gKbOGkID0Nk8BT5tRZYx8JeheuhCgZcuC/GxxSKZ7L7YmoLur+Q0H0N3OSPuGE+rCJMYfxVhKl33fxRy7ZPf12qHV3nMiMNuia7zXo+Gi5xrjQhZKrwLo+bRnsJ8BiipN2zYe5QWno2X5wrRcpX5R5Q+6v9u9UebTrSuBaylEI/CKdVKfn4kFDNGf76C8Ds10PfSuzdvNxYi62ahyMebTsEeZlVtq5f5bSRONhW/Q9/mKtP9qtV6MkfoAUNRksGoYwTaDXj7Kbw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Now everything is ready, set kasan=off can disable kasan for all three modes. Signed-off-by: Baoquan He --- include/linux/kasan-enabled.h | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/include/linux/kasan-enabled.h b/include/linux/kasan-enabled.h index 32f2d19f599f..21b6233f829c 100644 --- a/include/linux/kasan-enabled.h +++ b/include/linux/kasan-enabled.h @@ -4,34 +4,32 @@ #include +#ifdef CONFIG_KASAN extern bool kasan_arg_disabled; DECLARE_STATIC_KEY_FALSE(kasan_flag_enabled); -#ifdef CONFIG_KASAN_HW_TAGS - static __always_inline bool kasan_enabled(void) { return static_branch_likely(&kasan_flag_enabled); } +#else /* CONFIG_KASAN */ +static inline bool kasan_enabled(void) +{ + return false; +} +#endif +#ifdef CONFIG_KASAN_HW_TAGS static inline bool kasan_hw_tags_enabled(void) { return kasan_enabled(); } - #else /* CONFIG_KASAN_HW_TAGS */ - -static inline bool kasan_enabled(void) -{ - return IS_ENABLED(CONFIG_KASAN); -} - static inline bool kasan_hw_tags_enabled(void) { return false; } - #endif /* CONFIG_KASAN_HW_TAGS */ #endif /* LINUX_KASAN_ENABLED_H */ -- 2.41.0