linux-kernel - Re: [PATCH 6/6] kselftest/arm64: Fix check_user

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Date:   Tue, 27 Oct 2020 16:04:30 +0530
From:   Amit Kachhap <amit.kachhap@....com>
To:     Vincenzo Frascino <vincenzo.frascino@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Cc:     Shuah Khan <shuah@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Gabor Kertesz <gabor.kertesz@....com>
Subject: Re: [PATCH 6/6] kselftest/arm64: Fix check_user_mem test



On 10/26/20 5:42 PM, Vincenzo Frascino wrote:
> The check_user_mem test reports the error below because the test
> plan is not declared correctly:
> 
>    # Planned tests != run tests (0 != 4)
> 
> Fix the test adding the correct test plan declaration.

This change looks fine and got missed earlier.
Acked by: Amit Daniel Kachhap <amit.kachhap@....com>

> 
> Fixes: 4dafc08d0ba4 ("kselftest/arm64: Check mte tagged user address in kernel")
> Cc: Shuah Khan <shuah@...nel.org>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will@...nel.org>
> Cc: Gabor Kertesz <gabor.kertesz@....com>
> Cc: Amit Daniel Kachhap <amit.kachhap@....com>
> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
> ---
>   tools/testing/selftests/arm64/mte/check_user_mem.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/tools/testing/selftests/arm64/mte/check_user_mem.c b/tools/testing/selftests/arm64/mte/check_user_mem.c
> index 594e98e76880..4bfa80f2a8c3 100644
> --- a/tools/testing/selftests/arm64/mte/check_user_mem.c
> +++ b/tools/testing/selftests/arm64/mte/check_user_mem.c
> @@ -92,9 +92,13 @@ int main(int argc, char *argv[])
>   	err = mte_default_setup();
>   	if (err)
>   		return err;
> +
>   	/* Register signal handlers */
>   	mte_register_signal(SIGSEGV, mte_default_handler);
>   
> +	/* Set test plan */
> +	ksft_set_plan(4);
> +
>   	evaluate_test(check_usermem_access_fault(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE),
>   		"Check memory access from kernel in sync mode, private mapping and mmap memory\n");
>   	evaluate_test(check_usermem_access_fault(USE_MMAP, MTE_SYNC_ERR, MAP_SHARED),
>