Commit 49fd6f90 authored by Nobuhiro Iwamatsu's avatar Nobuhiro Iwamatsu Committed by Alexandre Belloni
Browse files

rtc: rtc-mc146818-lib: Use is_leap_year instead of calculate leap years 



The is_leap_year() for determining leap year is provided in rtc lib.
This uses is_leap_year() instead of its own leap year determination
routine.

Signed-off-by: default avatarNobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: default avatarMaciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/20241007233618.1442937-1-nobuhiro1.iwamatsu@toshiba.co.jp


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent b6cd7ade

drivers/rtc/rtc-mc146818-lib.c

+2 −4
Original line number Diff line number Diff line
@@ -216,7 +216,7 @@ int mc146818_set_time(struct rtc_time *time) 
	unsigned char save_control, save_freq_select;

	unsigned int yrs;

#ifdef CONFIG_MACH_DECSTATION

	unsigned int real_yrs, leap_yr;

	unsigned int real_yrs;

#endif

	unsigned char century = 0;
@@ -232,8 +232,6 @@ int mc146818_set_time(struct rtc_time *time) 


#ifdef CONFIG_MACH_DECSTATION

	real_yrs = yrs;

	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||

			!((yrs + 1900) % 400));

	yrs = 72;



	/*
@@ -241,7 +239,7 @@ int mc146818_set_time(struct rtc_time *time) 
	 * for non-leap years, so that Feb, 29th is handled

	 * correctly.

	 */

	if (!leap_yr && mon < 3) {

	if (!is_leap_year(real_yrs + 1900) && mon < 3) {

		real_yrs--;

		yrs = 73;

	}