linux-kernel - Re: [PATCH v8 13/14] x86/kasan: Logical bit shift for kasan_mem_to

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Message-ID: <aW4XiqW5-P-f0_PI@wieczorr-mobl1.localdomain>
Date: Mon, 19 Jan 2026 11:40:55 +0000
From: Maciej Wieczor-Retman <m.wieczorretman@...me>
To: Andrey Konovalov <andreyknvl@...il.com>
Cc: Maciej Wieczor-Retman <maciej.wieczor-retman@...el.com>, Andrey Ryabinin <ryabinin.a.a@...il.com>, Alexander Potapenko <glider@...gle.com>, Dmitry Vyukov <dvyukov@...gle.com>, Vincenzo Frascino <vincenzo.frascino@....com>, Thomas Gleixner <tglx@...nel.org>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>, Andrew Morton <akpm@...ux-foundation.org>, kasan-dev@...glegroups.com, linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v8 13/14] x86/kasan: Logical bit shift for kasan_mem_to_shadow

On 2026-01-17 at 02:21:31 +0100, Andrey Konovalov wrote:
>On Thu, Jan 15, 2026 at 5:43 PM Maciej Wieczor-Retman
><m.wieczorretman@...me> wrote:
>> +#ifndef arch_kasan_non_canonical_hook
>> +static inline bool arch_kasan_non_canonical_hook(unsigned long addr)
>> +{
>> +       return false;
>> +}
>> +#endif
>
>Let's put this next to kasan_non_canonical_hook declaration.

Just occured to me that, as opposed to to kasan_non_canonical_hook(),
arch_kasan_non_canonical_hook() is only used internally in mm/kasan/report.c so
I should toss it into mm/kasan/kasan.h instead.

-- 
Kind regards
Maciej Wieczór-Retman