From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
Will Deacon <will@kernel.org>, Dmitry Vyukov <dvyukov@google.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
Marco Elver <elver@google.com>,
Evgenii Stepanov <eugenis@google.com>,
Branislav Rankov <Branislav.Rankov@arm.com>,
Andrey Konovalov <andreyknvl@google.com>
Subject: Re: [PATCH v5 3/6] kasan: Add report for async mode
Date: Fri, 22 Jan 2021 13:38:38 +0000 [thread overview]
Message-ID: <7a04c826-6351-7a28-867c-fe415aae8aae@arm.com> (raw)
In-Reply-To: <6ccde9db-98cd-5a56-b93d-0b79f4df56a7@arm.com>
On 1/22/21 1:27 PM, Vincenzo Frascino wrote:
>> It looks like the original kasan_report() prototype is declared in two
>> places (second one in mm/kasan/kasan.h). I'd remove the latter and try
>> to have a consistent approach for kasan_report() and
>> kasan_report_async().
>>
> Ok, I will remove it.
I just realized that the internal interface exposes the kasan_report() interface
for the GENERIC KASAN implementation. If I remove it that does not work anymore:
/data1/Projects/LinuxKernel/linux-mte/mm/kasan/common.c: In function
‘__kasan_check_byte’:
/data1/Projects/LinuxKernel/linux-mte/mm/kasan/common.c:503:17: error: implicit
declaration of function ‘kasan_report’ [-Werror=implicit-function-declaration]
503 | kasan_report((unsigned long)address, 1, false, ip);
| ^~~~~~~~~~~~
/data1/Projects/LinuxKernel/linux-mte/mm/kasan/generic.c: In function
‘check_region_inline’:
/data1/Projects/LinuxKernel/linux-mte/mm/kasan/generic.c:170:25: error: implicit
declaration of function ‘kasan_report’ [-Werror=implicit-function-declaration]
170 | return !kasan_report(addr, size, write, ret_ip);
| ^~~~~~~~~~~~
/data1/Projects/LinuxKernel/linux-mte/mm/kasan/report_generic.c: In function
‘__asan_report_load1_noabort’:
/data1/Projects/LinuxKernel/linux-mte/mm/kasan/report_generic.c:295:9: error:
implicit declaration of function ‘kasan_report’
[-Werror=implicit-function-declaration]
295 | kasan_report(addr, size, false, _RET_IP_); \
| ^~~~~~~~~~~~
/data1/Projects/LinuxKernel/linux-mte/mm/kasan/report_generic.c:306:1: note: in
expansion of macro ‘DEFINE_ASAN_REPORT_LOAD’
306 | DEFINE_ASAN_REPORT_LOAD(1);
To do that cleanly few things need to be shuffled around, Andrey or I can take
care of it but if you agree we shall look into this after -rc1.
Thanks!
--
Regards,
Vincenzo
next prev parent reply other threads:[~2021-01-22 13:36 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-21 16:39 [PATCH v5 0/6] arm64: ARMv8.5-A: MTE: Add async mode support Vincenzo Frascino
2021-01-21 16:39 ` [PATCH v5 1/6] arm64: mte: Add asynchronous " Vincenzo Frascino
2021-01-21 16:39 ` [PATCH v5 2/6] kasan: Add KASAN mode kernel parameter Vincenzo Frascino
2021-01-21 17:34 ` Andrey Konovalov
2021-01-22 11:25 ` Vincenzo Frascino
2021-01-21 16:39 ` [PATCH v5 3/6] kasan: Add report for async mode Vincenzo Frascino
2021-01-21 17:36 ` Andrey Konovalov
2021-01-22 2:45 ` kernel test robot
2021-01-22 2:46 ` kernel test robot
2021-01-22 13:19 ` Catalin Marinas
2021-01-22 13:27 ` Vincenzo Frascino
2021-01-22 13:38 ` Vincenzo Frascino [this message]
2021-01-21 16:39 ` [PATCH v5 4/6] arm64: mte: Enable async tag check fault Vincenzo Frascino
2021-01-21 17:38 ` Andrey Konovalov
2021-01-22 11:24 ` Vincenzo Frascino
2021-01-22 11:58 ` Catalin Marinas
2021-01-21 16:39 ` [PATCH v5 5/6] arm64: mte: Expose execution mode Vincenzo Frascino
2021-01-21 17:41 ` Andrey Konovalov
2021-01-21 16:39 ` [PATCH v5 6/6] kasan: Forbid kunit tests when async mode is enabled Vincenzo Frascino
2021-01-21 17:40 ` Andrey Konovalov
2021-01-22 11:26 ` Vincenzo Frascino
2021-01-22 12:00 ` Catalin Marinas
2021-01-22 4:04 ` kernel test robot
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