linux-kernel - Re: [PATCH] rtc: rtctest: Improve support detection

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Date:   Sat, 12 Aug 2017 22:22:06 +0200
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Lukáš Doktor <ldoktor@...hat.com>
Cc:     a.zummo@...ertech.it, john.stultz@...aro.org, tglx@...utronix.de,
        sboyd@...eaurora.org, shuah@...nel.org, linux-rtc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] rtc: rtctest: Improve support detection

Hi,

On 11/08/2017 at 11:14:55 +0200, Lukáš Doktor wrote:
> The rtc-generic and opal-rtc are failing to run this test as they do not
> support all the features. Let's treat the error returns and skip to the
> following test.
> 
> Theoretically the test_DATE should be also adjusted, but as it's enabled
> on demand I think it makes sense to fail in such case.
> 
> Signed-off-by: Lukáš Doktor <ldoktor@...hat.com>
> ---
>  tools/testing/selftests/timers/rtctest.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/timers/rtctest.c b/tools/testing/selftests/timers/rtctest.c
> index f61170f..6344842 100644
> --- a/tools/testing/selftests/timers/rtctest.c
> +++ b/tools/testing/selftests/timers/rtctest.c
> @@ -125,7 +125,7 @@ int main(int argc, char **argv)
>  	/* Turn on update interrupts (one per second) */
>  	retval = ioctl(fd, RTC_UIE_ON, 0);
>  	if (retval == -1) {
> -		if (errno == EINVAL) {
> +		if (errno == EINVAL || errno == EINVAL) {

Well, this needs to be fixed.

>  			fprintf(stderr,
>  				"\n...Update IRQs not supported.\n");
>  			goto test_READ;
> @@ -221,6 +221,11 @@ int main(int argc, char **argv)
>  	/* Read the current alarm settings */
>  	retval = ioctl(fd, RTC_ALM_READ, &rtc_tm);
>  	if (retval == -1) {
> +		if (errno == EINVAL) {
> +			fprintf(stderr,
> +					"\n...EINVAL reading current alarm setting.\n");
> +			goto test_PIE;
> +		}
>  		perror("RTC_ALM_READ ioctl");
>  		exit(errno);
>  	}
> @@ -231,7 +236,7 @@ int main(int argc, char **argv)
>  	/* Enable alarm interrupts */
>  	retval = ioctl(fd, RTC_AIE_ON, 0);
>  	if (retval == -1) {
> -		if (errno == EINVAL) {
> +		if (errno == EINVAL || errno ==EIO) {
>  			fprintf(stderr,
>  				"\n...Alarm IRQs not supported.\n");
>  			goto test_PIE;
> -- 
> 2.9.4
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com