ktls: Fix comments & whitespace issues with c0e4090e3d

Address some last minute review feedback on c0e4090e3d
by fixing spacing around comments, and clarifying that the
newly added destroy_task is not related to tls 1.0.
No functional change intended.

Pointed out by: jhb
Sponsored by: Netflix

sys/kern/uipc_ktls.c

@@ -1478,6 +1478,7 @@ ktls_set_tx_mode(struct socket *so, int mode)
 		/* Don't allow enabling ifnet ktls multiple times */
 		if (tp->t_nic_ktls_xmit)
 			return (EALREADY);
+
 		/*
 		 * Don't enable ifnet ktls if we disabled it due to an
 		 * excessive retransmission rate
@@ -1850,7 +1851,6 @@ ktls_destroy(struct ktls_session *tls)
 			 * know that we don't hold the inp rlock, and
 			 * can safely take the wlock
 			 */
-
 			if (curthread->td_rw_rlocks == 0) {
 				INP_WLOCK(inp);
 			} else {
@@ -3335,6 +3335,7 @@ ktls_disable_ifnet(void *arg)
 		SOCK_UNLOCK(so);
 		return;
 	}
+
 	/*
 	 * note that t_nic_ktls_xmit_dis is never cleared; disabling
 	 * ifnet can only be done once per connection, so we never want

sys/sys/ktls.h

@@ -201,6 +201,8 @@ struct ktls_session {
 	/* Only used for TLS 1.0. */
 	uint64_t next_seqno;
 	STAILQ_HEAD(, mbuf) pending_records;
+
+	/* Used to destroy any kTLS session */
 	struct task destroy_task;
 } __aligned(CACHE_LINE_SIZE);