Commit 46351921 authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Alexandre Belloni
Browse files

rtc: test: Emit the seconds-since-1970 value instead of days-since-1970 



This is easier to handle because you can just consult date(1) to convert
between a seconds-since-1970 value and a date string:

	$ date --utc -d @3661
	Thu Jan  1 01:01:01 AM UTC 1970

	$ date -d "Jan 1 12:00:00 AM UTC 1900" +%s
	-2208988800

The intended side effect is that this prepares the test for dates before
1970. The division of a negative value by 86400 doesn't result in the
desired days-since-1970 value as e.g. secs=-82739 should map to days=-1.

Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: default avatarAlexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-3-2b2f7e3f9349@baylibre.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent fe9f5f96

drivers/rtc/lib_test.c

+1 −4
Original line number Diff line number Diff line
@@ -46,16 +46,13 @@ static void rtc_time64_to_tm_test_date_range(struct kunit *test, int years) 


	struct rtc_time result;

	time64_t secs;

	s64 days;



	for (secs = 0; secs <= total_secs; secs += 86400) {



		rtc_time64_to_tm(secs, &result);



		days = div_s64(secs, 86400);



		#define FAIL_MSG "%d/%02d/%02d (%2d) : %lld", \

			year, month, mday, yday, days

			year, month, mday, yday, secs



		KUNIT_ASSERT_EQ_MSG(test, year - 1900, result.tm_year, FAIL_MSG);

		KUNIT_ASSERT_EQ_MSG(test, month - 1, result.tm_mon, FAIL_MSG);