From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Marco Elver <elver@google.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
kasan-dev <kasan-dev@googlegroups.com>,
Andrew Morton <akpm@linux-foundation.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Dmitry Vyukov <dvyukov@google.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
Evgenii Stepanov <eugenis@google.com>,
Branislav Rankov <Branislav.Rankov@arm.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Subject: Re: [PATCH 5/5] kasan: Extend KASAN mode kernel parameter
Date: Mon, 4 Oct 2021 17:45:41 +0200 [thread overview]
Message-ID: <3e6a5797-4690-ea54-c14b-75d6ca58e744@arm.com> (raw)
In-Reply-To: <CA+fCnZe-gogW1yMuiHhXmKXTsmfkb+-iWp1Vf9K6ZY9madtxfw@mail.gmail.com>
Hi Andrey,
On 10/3/21 7:16 PM, Andrey Konovalov wrote:
> Hi Vincenzo,
>
> Up till now, the code assumes that not having the async mode enabled
> means that the sync mode is enabled. There are two callers to
> kasan_async_mode_enabled(): lib/test_kasan.c and mm/kasan/report.c.
> Assuming tests support will be added later, at least the second one
> should be adjusted.
>
> Maybe we should rename kasan_async_mode_enabled() to
> kasan_async_fault_possible(), make it return true for both async and
> asymm modes, and use that in mm/kasan/report.c. And also add
> kasan_sync_fault_possible() returning true for sync and asymm, and use
> that in lib/test_kasan.c. (However, it seems that the tests don't work
> with async faults right now.)
>
It is ok by me, I will add the changes you are mentioning in v2.
> Thanks!
--
Regards,
Vincenzo
next prev parent reply other threads:[~2021-10-04 15:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-13 8:14 [PATCH 0/5] arm64: ARMv8.7-A: MTE: Add asymm mode support Vincenzo Frascino
2021-09-13 8:14 ` [PATCH 1/5] kasan: Remove duplicate of kasan_flag_async Vincenzo Frascino
2021-09-20 15:31 ` Catalin Marinas
2021-10-03 17:12 ` Andrey Konovalov
2021-09-13 8:14 ` [PATCH 2/5] arm64: mte: Bitfield definitions for Asymm MTE Vincenzo Frascino
2021-09-20 15:31 ` Catalin Marinas
2021-09-13 8:14 ` [PATCH 3/5] arm64: mte: CPU feature detection " Vincenzo Frascino
2021-09-20 15:31 ` Catalin Marinas
2021-09-20 15:41 ` Suzuki K Poulose
2021-09-13 8:14 ` [PATCH 4/5] arm64: mte: Add asymmetric mode support Vincenzo Frascino
2021-09-20 15:31 ` Catalin Marinas
2021-10-03 17:15 ` Andrey Konovalov
2021-10-04 15:39 ` Vincenzo Frascino
2021-09-13 8:14 ` [PATCH 5/5] kasan: Extend KASAN mode kernel parameter Vincenzo Frascino
2021-09-16 10:43 ` Marco Elver
2021-09-20 7:46 ` Vincenzo Frascino
2021-10-03 17:16 ` Andrey Konovalov
2021-10-04 15:45 ` Vincenzo Frascino [this message]
2021-09-20 15:32 ` Catalin Marinas
2021-09-20 21:29 ` [PATCH 0/5] arm64: ARMv8.7-A: MTE: Add asymm mode support Peter Collingbourne
2021-09-21 7:03 ` Vincenzo Frascino
2021-09-29 15:49 ` Will Deacon
2021-10-04 15:16 ` Vincenzo Frascino
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