From: Heinrich Schuchardt Date: Fri, 31 May 2019 20:08:45 +0000 (+0200) Subject: efi_loader: handling of daylight saving time X-Git-Tag: v2019.07-rc4~12^2~5 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=38b9a79c6366a0e4c98b0a6f33f268fc0d3ba4ce;p=oweals%2Fu-boot.git efi_loader: handling of daylight saving time If SetTime() is meant to set daylight saving time it will be called with Time.Daylight == EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT. Return 0 from GetTime() if time is not in daylight because we cannot determine if we are in a time zone with daylight saving time. Signed-off-by: Heinrich Schuchardt --- diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c index 2082d1304f..98ab4de03d 100644 --- a/lib/efi_loader/efi_runtime.c +++ b/lib/efi_loader/efi_runtime.c @@ -195,9 +195,9 @@ static efi_status_t EFIAPI efi_get_time_boottime( time->hour = tm.tm_hour; time->minute = tm.tm_min; time->second = tm.tm_sec; - time->daylight = EFI_TIME_ADJUST_DAYLIGHT; - if (tm.tm_isdst > 0) - time->daylight |= EFI_TIME_IN_DAYLIGHT; + if (tm.tm_isdst) + time->daylight = + EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT; time->timezone = EFI_UNSPECIFIED_TIMEZONE; if (capabilities) { @@ -276,7 +276,8 @@ static efi_status_t EFIAPI efi_set_time_boottime(struct efi_time *time) tm.tm_hour = time->hour; tm.tm_min = time->minute; tm.tm_sec = time->second; - tm.tm_isdst = time->daylight == EFI_TIME_IN_DAYLIGHT; + tm.tm_isdst = time->daylight == + (EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT); /* Calculate day of week */ rtc_calc_weekday(&tm);