elog: calculate year correctly in timestamp

This CL uses a 16-bit value (instead of an 8-bit value) for the year.
This is needed because the function internally does a "year % 100", so
the year should not be truncated to 8-bit before applying the modulo.

This fixes a regression introduced in commit e929a75.

BUG=b:200538760
TEST=deployed coreboot. Manually verified that year is correct using
     "elogtool list"
TEST=test_that -b $BOARD $DUT firmware_EventLog

Change-Id: I17578ff99af5b31b216ac53c22e53b1b70df5084
Signed-off-by: Ricardo Quesada <ricardoq@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57816
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Ricardo Quesada 2021-09-21 13:55:53 -07:00 committed by Patrick Georgi
parent 10f2faacea
commit 425fdeb2f9
2 changed files with 2 additions and 2 deletions

View File

@ -50,7 +50,7 @@ const void *event_get_data(const struct event_header *event)
/* Populate timestamp in event header with given time. */
void elog_fill_timestamp(struct event_header *event, uint8_t sec, uint8_t min,
uint8_t hour, uint8_t mday, uint8_t mon, uint8_t year)
uint8_t hour, uint8_t mday, uint8_t mon, uint16_t year)
{
event->second = bin2bcd(sec);
event->minute = bin2bcd(min);

View File

@ -318,7 +318,7 @@ enum cb_err elog_verify_header(const struct elog_header *header);
const struct event_header *elog_get_next_event(const struct event_header *event);
const void *event_get_data(const struct event_header *event);
void elog_fill_timestamp(struct event_header *event, uint8_t sec, uint8_t min,
uint8_t hour, uint8_t mday, uint8_t mon, uint8_t year);
uint8_t hour, uint8_t mday, uint8_t mon, uint16_t year);
/* Update the checksum at the last byte. */
void elog_update_checksum(struct event_header *event, uint8_t checksum);
/* Simple byte checksum for events. */