From: Maciej Wieczor-Retman <m.wieczorretman@pm.me>
To: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Vlastimil Babka <vbabka@suse.cz>, Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>,
Axel Rasmussen <axelrasmussen@google.com>,
Yuanchu Xie <yuanchu@google.com>, Wei Xu <weixugc@google.com>,
Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>,
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
Date: Tue, 13 Jan 2026 16:12:01 +0000 [thread overview]
Message-ID: <aWZups-lK-J3NwgS@wieczorr-mobl1.localdomain> (raw)
In-Reply-To: <CA+fCnZdTDzruwLA2MdE=+5KQC5VKMEjm49Z5ez-dDO27y4GORw@mail.gmail.com>
On 2026-01-13 at 02:21:15 +0100, Andrey Konovalov wrote:
>On Mon, Jan 12, 2026 at 6:27 PM Maciej Wieczor-Retman
><m.wieczorretman@pm.me> wrote:
>>
>> From: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
>> 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 == 4, the mask does not cover a whole byte.
Yes, I suppose that name makes more sense :)
--
Kind regards
Maciej Wieczór-Retman
next prev parent reply other threads:[~2026-01-13 16:12 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-12 17:26 [PATCH v8 00/14] kasan: x86: arm64: KASAN tag-based mode for x86 Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 01/14] kasan: sw_tags: Use arithmetic shift for shadow computation Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 02/14] kasan: arm64: x86: Make special tags arch specific Maciej Wieczor-Retman
2026-01-13 1:21 ` Andrey Konovalov
2026-01-13 17:32 ` Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 04/14] x86/kasan: Add arch specific kasan functions Maciej Wieczor-Retman
2026-01-13 1:21 ` Andrey Konovalov
2026-01-13 16:12 ` Maciej Wieczor-Retman [this message]
2026-01-12 17:27 ` [PATCH v8 06/14] mm/execmem: Untag addresses in EXECMEM_ROX related pointer arithmetic Maciej Wieczor-Retman
2026-01-12 17:28 ` [PATCH v8 13/14] x86/kasan: Logical bit shift for kasan_mem_to_shadow Maciej Wieczor-Retman
2026-01-13 1:21 ` Andrey Konovalov
2026-01-12 18:29 ` [PATCH v8 00/14] kasan: x86: arm64: KASAN tag-based mode for x86 Andrew Morton
2026-01-12 20:08 ` Maciej Wieczór-Retman
2026-01-12 20:53 ` Andrew Morton
2026-01-13 1:47 ` Andrey Konovalov
2026-01-12 20:27 ` Dave Hansen
2026-01-13 11:47 ` Borislav Petkov
2026-01-13 17:34 ` Andrew Morton
2026-01-13 1:44 ` Andrey Konovalov
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