The clock_getres()/clock_get()/clock_set()/timer_set()/timer_get() callbacks in struct k_clock are not year 2038 safe on 32bit systems, and it need convert to safe callbacks which use struct timespec64 or struct itimerspec64.
The clock_gettime()/clock_settime()/clock_getres()/timer_gettime()/ timer_settime() callbacks in struct posix_clock_operations are not year 2038 safe on 32bit systems, and it need convert to year 2038 safe callbacks which use struct timespec64 or struct itimerspec64.
Signed-off-by: Baolin Wang baolin.wang@linaro.org --- drivers/ptp/ptp_clock.c | 22 +++++++--------------- include/linux/posix-clock.h | 10 +++++----- kernel/time/posix-clock.c | 20 ++++++++++---------- 3 files changed, 22 insertions(+), 30 deletions(-)
diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c index 2e481b9..7040f20 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -97,31 +97,25 @@ static s32 scaled_ppm_to_ppb(long ppm)
/* posix clock implementation */
-static int ptp_clock_getres(struct posix_clock *pc, struct timespec *tp) +static int ptp_clock_getres(struct posix_clock *pc, struct timespec64 *tp) { tp->tv_sec = 0; tp->tv_nsec = 1; return 0; }
-static int ptp_clock_settime(struct posix_clock *pc, const struct timespec *tp) +static int ptp_clock_settime(struct posix_clock *pc, const struct timespec64 *tp) { struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); - struct timespec64 ts = timespec_to_timespec64(*tp);
- return ptp->info->settime64(ptp->info, &ts); + return ptp->info->settime64(ptp->info, tp); }
-static int ptp_clock_gettime(struct posix_clock *pc, struct timespec *tp) +static int ptp_clock_gettime(struct posix_clock *pc, struct timespec64 *tp) { struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); - struct timespec64 ts; - int err;
- err = ptp->info->gettime64(ptp->info, &ts); - if (!err) - *tp = timespec64_to_timespec(ts); - return err; + return ptp->info->gettime64(ptp->info, tp); }
static int ptp_clock_adjtime(struct posix_clock *pc, struct timex *tx) @@ -133,8 +127,7 @@ static int ptp_clock_adjtime(struct posix_clock *pc, struct timex *tx) ops = ptp->info;
if (tx->modes & ADJ_SETOFFSET) { - struct timespec ts; - ktime_t kt; + struct timespec64 ts; s64 delta;
ts.tv_sec = tx->time.tv_sec; @@ -146,8 +139,7 @@ static int ptp_clock_adjtime(struct posix_clock *pc, struct timex *tx) if ((unsigned long) ts.tv_nsec >= NSEC_PER_SEC) return -EINVAL;
- kt = timespec_to_ktime(ts); - delta = ktime_to_ns(kt); + delta = timespec64_to_ns(&ts); err = ops->adjtime(ops, delta); } else if (tx->modes & ADJ_FREQUENCY) { s32 ppb = scaled_ppm_to_ppb(tx->freq); diff --git a/include/linux/posix-clock.h b/include/linux/posix-clock.h index 34c4498..83b22ae 100644 --- a/include/linux/posix-clock.h +++ b/include/linux/posix-clock.h @@ -59,23 +59,23 @@ struct posix_clock_operations {
int (*clock_adjtime)(struct posix_clock *pc, struct timex *tx);
- int (*clock_gettime)(struct posix_clock *pc, struct timespec *ts); + int (*clock_gettime)(struct posix_clock *pc, struct timespec64 *ts);
- int (*clock_getres) (struct posix_clock *pc, struct timespec *ts); + int (*clock_getres) (struct posix_clock *pc, struct timespec64 *ts);
int (*clock_settime)(struct posix_clock *pc, - const struct timespec *ts); + const struct timespec64 *ts);
int (*timer_create) (struct posix_clock *pc, struct k_itimer *kit);
int (*timer_delete) (struct posix_clock *pc, struct k_itimer *kit);
void (*timer_gettime)(struct posix_clock *pc, - struct k_itimer *kit, struct itimerspec *tsp); + struct k_itimer *kit, struct itimerspec64 *tsp);
int (*timer_settime)(struct posix_clock *pc, struct k_itimer *kit, int flags, - struct itimerspec *tsp, struct itimerspec *old); + struct itimerspec64 *tsp, struct itimerspec64 *old); /* * Optional character device methods: */ diff --git a/kernel/time/posix-clock.c b/kernel/time/posix-clock.c index ce033c7..e21e4c1 100644 --- a/kernel/time/posix-clock.c +++ b/kernel/time/posix-clock.c @@ -297,7 +297,7 @@ out: return err; }
-static int pc_clock_gettime(clockid_t id, struct timespec *ts) +static int pc_clock_gettime(clockid_t id, struct timespec64 *ts) { struct posix_clock_desc cd; int err; @@ -316,7 +316,7 @@ static int pc_clock_gettime(clockid_t id, struct timespec *ts) return err; }
-static int pc_clock_getres(clockid_t id, struct timespec *ts) +static int pc_clock_getres(clockid_t id, struct timespec64 *ts) { struct posix_clock_desc cd; int err; @@ -335,7 +335,7 @@ static int pc_clock_getres(clockid_t id, struct timespec *ts) return err; }
-static int pc_clock_settime(clockid_t id, const struct timespec *ts) +static int pc_clock_settime(clockid_t id, const struct timespec64 *ts) { struct posix_clock_desc cd; int err; @@ -399,7 +399,7 @@ static int pc_timer_delete(struct k_itimer *kit) return err; }
-static void pc_timer_gettime(struct k_itimer *kit, struct itimerspec *ts) +static void pc_timer_gettime(struct k_itimer *kit, struct itimerspec64 *ts) { clockid_t id = kit->it_clock; struct posix_clock_desc cd; @@ -414,7 +414,7 @@ static void pc_timer_gettime(struct k_itimer *kit, struct itimerspec *ts) }
static int pc_timer_settime(struct k_itimer *kit, int flags, - struct itimerspec *ts, struct itimerspec *old) + struct itimerspec64 *ts, struct itimerspec64 *old) { clockid_t id = kit->it_clock; struct posix_clock_desc cd; @@ -435,12 +435,12 @@ static int pc_timer_settime(struct k_itimer *kit, int flags, }
struct k_clock clock_posix_dynamic = { - .clock_getres = pc_clock_getres, - .clock_set = pc_clock_settime, - .clock_get = pc_clock_gettime, + .clock_getres64 = pc_clock_getres, + .clock_set64 = pc_clock_settime, + .clock_get64 = pc_clock_gettime, .clock_adj = pc_clock_adjtime, .timer_create = pc_timer_create, - .timer_set = pc_timer_settime, + .timer_set64 = pc_timer_settime, .timer_del = pc_timer_delete, - .timer_get = pc_timer_gettime, + .timer_get64 = pc_timer_gettime, };