linux-kernel - Re: [PATCH] selftests: kvm: Fix -Wformat warnings

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Message-ID: <2af4a102-f7ef-29bf-15a5-4b355e6d9be0@kernel.org>
Date:   Tue, 16 Oct 2018 08:50:28 -0600
From:   Shuah Khan <shuah@...nel.org>
To:     Andrea Parri <andrea.parri@...rulasolutions.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Shuah Khan <shuah@...nel.org>
Subject: Re: [PATCH] selftests: kvm: Fix -Wformat warnings

On 10/16/2018 08:13 AM, Andrea Parri wrote:
> Fixes the following warnings:
> 
> dirty_log_test.c: In function ‘help’:
> dirty_log_test.c:216:9: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘int’ [-Wformat=]
>   printf(" -i: specify iteration counts (default: %"PRIu64")\n",
>          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from include/test_util.h:18:0,
>                  from dirty_log_test.c:16:
> /usr/include/inttypes.h:105:34: note: format string is defined here
>  # define PRIu64  __PRI64_PREFIX "u"
> dirty_log_test.c:218:9: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘int’ [-Wformat=]
>   printf(" -I: specify interval in ms (default: %"PRIu64" ms)\n",
>          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from include/test_util.h:18:0,
>                  from dirty_log_test.c:16:
> /usr/include/inttypes.h:105:34: note: format string is defined here
>  # define PRIu64  __PRI64_PREFIX "u"
> 
> Signed-off-by: Andrea Parri <andrea.parri@...rulasolutions.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 0c2cdc105f968..a9c4b5e21d7e7 100644
> --- a/tools/testing/selftests/kvm/dirty_log_test.c
> +++ b/tools/testing/selftests/kvm/dirty_log_test.c
> @@ -31,9 +31,9 @@
>  /* How many pages to dirty for each guest loop */
>  #define  TEST_PAGES_PER_LOOP            1024
>  /* How many host loops to run (one KVM_GET_DIRTY_LOG for each loop) */
> -#define  TEST_HOST_LOOP_N               32
> +#define  TEST_HOST_LOOP_N               32UL
>  /* Interval for each host loop (ms) */
> -#define  TEST_HOST_LOOP_INTERVAL        10
> +#define  TEST_HOST_LOOP_INTERVAL        10UL
>  
>  /*
>   * Guest variables.  We use these variables to share data between host
> 

Thanks for the patch. Applied to linux-kselftest next for 4.20-rc1

thanks,
-- Shuah