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Sender: Guenter Roeck <groeck7@gmail.com>
Date: Wed, 21 Feb 2024 05:25:56 -0800
From: Guenter Roeck <linux@roeck-us.net>
To: David Gow <davidgow@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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Subject: Re: [PATCH 4/9] time: test: Fix incorrect format specifier
Message-ID: <64512797-41d5-4a40-81f5-5b17c8b7bccd@roeck-us.net>
References: <20240221092728.1281499-1-davidgow@google.com>
 <20240221092728.1281499-5-davidgow@google.com>
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In-Reply-To: <20240221092728.1281499-5-davidgow@google.com>

On Wed, Feb 21, 2024 at 05:27:17PM +0800, David Gow wrote:
> 'days' is a s64 (from div_s64), and so should use a %lld specifier.
> 
> This was found by extending KUnit's assertion macros to use gcc's
> __printf attribute.
> 
> Fixes: 276010551664 ("time: Improve performance of time64_to_tm()")
> Signed-off-by: David Gow <davidgow@google.com>

Tested-by: Guenter Roeck <linux@roeck-us.net>

> ---
>  kernel/time/time_test.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/time/time_test.c b/kernel/time/time_test.c
> index ca058c8af6ba..3e5d422dd15c 100644
> --- a/kernel/time/time_test.c
> +++ b/kernel/time/time_test.c
> @@ -73,7 +73,7 @@ static void time64_to_tm_test_date_range(struct kunit *test)
>  
>  		days = div_s64(secs, 86400);
>  
> -		#define FAIL_MSG "%05ld/%02d/%02d (%2d) : %ld", \
> +		#define FAIL_MSG "%05ld/%02d/%02d (%2d) : %lld", \
>  			year, month, mdday, yday, days
>  
>  		KUNIT_ASSERT_EQ_MSG(test, year - 1900, result.tm_year, FAIL_MSG);
> -- 
> 2.44.0.rc0.258.g7320e95886-goog
>