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Date: Tue, 9 Apr 2024 16:46:40 -0700
From: Kees Cook <keescook@...omium.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Sean Christopherson <seanjc@...gle.com>, Shuah Khan <shuah@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	linux-kselftest@...r.kernel.org, llvm@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests: kselftest_harness: Print empty string, not
 empty fmt on PASS/FAIL

On Tue, Apr 09, 2024 at 04:09:20PM -0700, Jakub Kicinski wrote:
> On Tue,  9 Apr 2024 15:42:56 -0700 Sean Christopherson wrote:
> > -	ksft_test_result_code(t->exit_code, test_name,
> > -			      diagnostic ? "%s" : "", diagnostic);
> > +	ksft_test_result_code(t->exit_code, test_name, "%s", diagnostic);
> 
> Have you tested that to make sure it doesn't change the output?
> 
> .. warning: ^^ leading question ;)

Probably should be just this, without changing the NULL init?

	ksft_test_result_code(t->exit_code, test_name, "%s",
			      diagnostic ?: "");

-- 
Kees Cook

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