clock_adjtime
.clock_adjtime = ptp_clock_adjtime,
int (*clock_adjtime)(struct posix_clock *pc, struct __kernel_timex *tx);
COND_SYSCALL(clock_adjtime);
if (cd.clk->ops.clock_adjtime)
err = cd.clk->ops.clock_adjtime(cd.clk, tx);
SYSCALL_DEFINE2(clock_adjtime, const clockid_t, which_clock,
if (clock_adjtime(clkid, &tx)) {
if (clock_adjtime(clkid, &tx) < 0) {
if (clock_adjtime(clkid, &tx) < 0) {
ret = clock_adjtime(CLOCK_REALTIME, &tmx);
ret = clock_adjtime(CLOCK_REALTIME, &tmx);