libceph: Switch to use %ptSp

Use %ptSp instead of open coded variants to print content of
struct timespec64 in human readable format.

Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251113150217.3030010-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Petr Mladek <pmladek@suse.com>

Author: andy-shev

net/ceph/messenger_v2.c

@@ -1564,8 +1564,7 @@ static int prepare_keepalive2(struct ceph_connection *con)
 	struct timespec64 now;
 
 	ktime_get_real_ts64(&now);
-	dout("%s con %p timestamp %lld.%09ld\n", __func__, con, now.tv_sec,
-	     now.tv_nsec);
+	dout("%s con %p timestamp %ptSp\n", __func__, con, &now);
 
 	ceph_encode_timespec64(ts, &now);
 
@@ -2759,8 +2758,7 @@ static int process_keepalive2_ack(struct ceph_connection *con,
 	ceph_decode_need(&p, end, sizeof(struct ceph_timespec), bad);
 	ceph_decode_timespec64(&con->last_keepalive_ack, p);
 
-	dout("%s con %p timestamp %lld.%09ld\n", __func__, con,
-	     con->last_keepalive_ack.tv_sec, con->last_keepalive_ack.tv_nsec);
+	dout("%s con %p timestamp %ptSp\n", __func__, con, &con->last_keepalive_ack);
 
 	return 0;