From: Uwe Kleine-König Date: Mon, 28 Apr 2025 10:06:49 +0000 (+0200) Subject: rtc: test: Emit the seconds-since-1970 value instead of days-since-1970 X-Git-Tag: v6.16-rc1~41^2~3 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=46351921cbe11403a4fcab00e76fa03d99a7aef2;p=thirdparty%2Flinux.git 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: Uwe Kleine-König Signed-off-by: Alexandre Mergnat Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-3-2b2f7e3f9349@baylibre.com Signed-off-by: Alexandre Belloni --- diff --git a/drivers/rtc/lib_test.c b/drivers/rtc/lib_test.c index c30c759662e39..c0faddc04c9bb 100644 --- a/drivers/rtc/lib_test.c +++ b/drivers/rtc/lib_test.c @@ -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);