Re: [PATCH] kselftest/alsa: Fix -Wformat compiler warnings

[Takashi Iwai <tiwai@suse.de>]

On Fri, 24 Mar 2023 10:28:06 +0100,
Alexander Heinrich wrote:
> 
> I noticed some -Wformat compiler warnings in pcm-test.c while building
> kselftest, fix them by using the same types for format specifier and arguments.
> 
> Signed-off-by: Alexander Heinrich <hallo@alexanderheinrich.de>

Those variables (rates, channels, etc) should be rather int instead of
long, as these are not 64bit parameters on 32bit archs.
On top of that, the whole '%l' prefix and cast should be dropped.

The only concern is the string to int conversion, and this should be
checked carefully, but other than that, it must be straightforward.

Care to work on that way?


thanks,

Takashi

> ---
>  tools/testing/selftests/alsa/pcm-test.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/tools/testing/selftests/alsa/pcm-test.c b/tools/testing/selftests/alsa/pcm-test.c
> index 58b525a4a32c..44fc5f826ab5 100644
> --- a/tools/testing/selftests/alsa/pcm-test.c
> +++ b/tools/testing/selftests/alsa/pcm-test.c
> @@ -371,7 +371,7 @@ static void test_pcm_time(struct pcm_data *data, enum test_class class,
>  		goto __close;
>  	}
>  	if (rrate != rate) {
> -		snprintf(msg, sizeof(msg), "rate mismatch %ld != %ld", rate, rrate);
> +		snprintf(msg, sizeof(msg), "rate mismatch %ld != %d", rate, rrate);
>  		goto __close;
>  	}
>  	rperiod_size = period_size;
> @@ -437,24 +437,24 @@ static void test_pcm_time(struct pcm_data *data, enum test_class class,
>  			frames = snd_pcm_writei(handle, samples, rate);
>  			if (frames < 0) {
>  				snprintf(msg, sizeof(msg),
> -					 "Write failed: expected %d, wrote %li", rate, frames);
> +					 "Write failed: expected %ld, wrote %li", rate, frames);
>  				goto __close;
>  			}
>  			if (frames < rate) {
>  				snprintf(msg, sizeof(msg),
> -					 "expected %d, wrote %li", rate, frames);
> +					 "expected %ld, wrote %li", rate, frames);
>  				goto __close;
>  			}
>  		} else {
>  			frames = snd_pcm_readi(handle, samples, rate);
>  			if (frames < 0) {
>  				snprintf(msg, sizeof(msg),
> -					 "expected %d, wrote %li", rate, frames);
> +					 "expected %ld, wrote %li", rate, frames);
>  				goto __close;
>  			}
>  			if (frames < rate) {
>  				snprintf(msg, sizeof(msg),
> -					 "expected %d, wrote %li", rate, frames);
> +					 "expected %ld, wrote %li", rate, frames);
>  				goto __close;
>  			}
>  		}
> -- 
> 2.34.1
>