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Peter Anvin" , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Axel Rasmussen , Yuanchu Xie , Wei Xu , Maciej Wieczor-Retman , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v8 04/14] x86/kasan: Add arch specific kasan functions Message-ID: In-Reply-To: References: <785eb728e2cc897e05ee709d42214172be481ab9.1768233085.git.m.wieczorretman@pm.me> Feedback-ID: 164464600:user:proton X-Pm-Message-ID: 5dbf393033876631cef8bd13fe0e2530c3676625 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Stat-Signature: dcr4osfoh6bri7uu8h7sigx3atp3ch3q X-Rspamd-Queue-Id: 28891180010 X-Rspamd-Server: rspam04 X-HE-Tag: 1768320728-100735 X-HE-Meta: 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 paJJZdio um/isKdOk16Tf1jbOmz7dWGOTaalegVkPeZUXhs0CBmB5gC5zrFeHcOH4dcJut7bAN3NUFIAUY1vDGi9zl6oOb0E+89XFUuLqbvsgv9uZSGGvgylMhtozoh1QfcjN4jQhu8AhG6X3NW+iw+hXj2LiifdRDLX2yzW1ZxLLFXe6Zo3/gDmw6S1VVahlP+QH4n10N6uLDMqgmJU5Avw66sJ+wR3wXjesk9oxcgtOhCP4b7NfZmCq32SdlxG/Xh1Bq+Y2eoN5nij4zyfJJbhIposSFySFySrTaxOMMcXe8FQ58v02XsM= 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 2026-01-13 at 02:21:15 +0100, Andrey Konovalov wrote: >On Mon, Jan 12, 2026 at 6:27=E2=80=AFPM Maciej Wieczor-Retman > wrote: >> >> From: Maciej Wieczor-Retman >> diff --git a/include/linux/kasan-tags.h b/include/linux/kasan-tags.h >> index ad5c11950233..e4f26bec3673 100644 >> --- a/include/linux/kasan-tags.h >> +++ b/include/linux/kasan-tags.h >> @@ -10,6 +10,8 @@ >> #define KASAN_TAG_WIDTH 0 >> #endif >> >> +#define KASAN_TAG_BYTE_MASK ((1UL << KASAN_TAG_WIDTH) - 1) > >How about KASAN_TAG_BITS_MASK? > >When KASAN_TAG_WIDTH =3D=3D 4, the mask does not cover a whole byte. Yes, I suppose that name makes more sense :) --=20 Kind regards Maciej Wiecz=C3=B3r-Retman