From 49fd6f907f4623fa029a24b21f667b99594438bd Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Tue, 8 Oct 2024 08:36:18 +0900 Subject: [PATCH] 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: Nobuhiro Iwamatsu Acked-by: Maciej W. Rozycki Link: https://lore.kernel.org/r/20241007233618.1442937-1-nobuhiro1.iwamatsu@toshiba.co.jp Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-mc146818-lib.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c index 651bf3c279c7..dbd2d5835f00 100644 --- a/drivers/rtc/rtc-mc146818-lib.c +++ b/drivers/rtc/rtc-mc146818-lib.c @@ -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; }