linux-kernel - Re: [PATCH v2] KVM: selftests: Fix build error due to assert in dirty_log

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Date: Wed, 3 Apr 2024 10:07:27 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Raghavendra Rao Ananta <rananta@...gle.com>
Cc: Sasha Levin <sashal@...nel.org>, Paolo Bonzini <pbonzini@...hat.com>, 
	Shuah Khan <shuah@...nel.org>, Peter Xu <peterx@...hat.com>, kvm@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, 
	stable@...r.kernel.org
Subject: Re: [PATCH v2] KVM: selftests: Fix build error due to assert in dirty_log_test

On Wed, Apr 03, 2024, Raghavendra Rao Ananta wrote:
> The commit e5ed6c922537 ("KVM: selftests: Fix a semaphore imbalance in
> the dirty ring logging test") backported the fix from v6.8 to stable
> v6.1. However, since the patch uses 'TEST_ASSERT_EQ()', which doesn't
> exist on v6.1, the following build error is seen:
> 
> dirty_log_test.c:775:2: error: call to undeclared function
> 'TEST_ASSERT_EQ'; ISO C99 and later do not support implicit function
> declarations [-Wimplicit-function-declaration]
>         TEST_ASSERT_EQ(sem_val, 0);
>         ^
> 1 error generated.
> 
> Replace the macro with its equivalent, 'ASSERT_EQ()' to fix the issue.
> 
> Fixes: e5ed6c922537 ("KVM: selftests: Fix a semaphore imbalance in the dirty ring logging test")
> Cc: <stable@...r.kernel.org>
> Signed-off-by: Raghavendra Rao Ananta <rananta@...gle.com>

Just to be super explicit, this is specifically for 6.1.y.

Acked-by: Sean Christopherson <seanjc@...gle.com>

> ---
>  tools/testing/selftests/kvm/dirty_log_test.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
> index ec40a33c29fd..711b9e4d86aa 100644
> --- a/tools/testing/selftests/kvm/dirty_log_test.c
> +++ b/tools/testing/selftests/kvm/dirty_log_test.c
> @@ -772,9 +772,9 @@ static void run_test(enum vm_guest_mode mode, void *arg)
>  	 * verification of all iterations.
>  	 */
>  	sem_getvalue(&sem_vcpu_stop, &sem_val);
> -	TEST_ASSERT_EQ(sem_val, 0);
> +	ASSERT_EQ(sem_val, 0);
>  	sem_getvalue(&sem_vcpu_cont, &sem_val);
> -	TEST_ASSERT_EQ(sem_val, 0);
> +	ASSERT_EQ(sem_val, 0);
>  
>  	pthread_create(&vcpu_thread, NULL, vcpu_worker, vcpu);
>  
> 
> base-commit: e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1
> -- 
> 2.44.0.478.gd926399ef9-goog
>