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Sun, 30 Nov 2025 02:49:22 +0000 (UTC) Date: Sun, 30 Nov 2025 10:49:18 +0800 From: Baoquan He To: Alexander Potapenko Cc: linux-mm@kvack.org, ryabinin.a.a@gmail.com, andreyknvl@gmail.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 Subject: Re: [PATCH v4 12/12] mm/kasan: make kasan=on|off take effect for all three modes Message-ID: References: <20251128033320.1349620-1-bhe@redhat.com> <20251128033320.1349620-13-bhe@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 9AA1D180002 X-Stat-Signature: n84xarmrmeprirwmg7uhksyz3g8g8a7m X-Rspam-User: X-HE-Tag: 1764470976-370416 X-HE-Meta: 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 ux1mGLIf cd7bCBKcg2iEEHJIxHLzuP/XD1JKFU90eL12VKKwyGusdg5SE4h243DZWNyPJkJuRspiOcmyrr5O3tK+bcIPR79hzGn3TKp9nIEvfs2W3Mz6ET9KI0Z1WVkzQP3W6w8b0Wmt+83VWls83XzHNMVnVsyxK/5UinPvFDsmQ/Q+UkV5fe1JvhKC/botgTuqAtjdNRUB/GAgBk3+798S4slFUSMxsDAh1I4TnwQJ1tNamXi905dtBNoErELnA8ElAh36yzLC4HSUQzxMPU5ryxvuTypzvpov3acXF8IOvHLDgIOPbI1gXkrqMHEdfpIsGDICXyMd6yed9B9CSobgknSVN/KKmqG/4KRlHWoKl27FOgvAHCfQsHIvZnARE1YBTAay+wkkbFhL2utebk+Q1Cnvvq2DYTrcH85Rrj4+jZRUgnqNPo+M/dWtmMqW5iqY5CQvRZzt6tSOfR69MyDCRl0226ffDPQ== 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: On 11/28/25 at 04:50pm, Alexander Potapenko wrote: > > @@ -30,7 +30,7 @@ static inline void kasan_enable(void) > > /* For architectures that can enable KASAN early, use compile-time check. */ > I think the behavior of kasan_enabled() is inconsistent with this comment now. You are right, that line should be removed. Thanks for careful checking. > > static __always_inline bool kasan_enabled(void) > > { > > - return IS_ENABLED(CONFIG_KASAN); > > + return false; > > } >