net: spelling fixes

Spelling errors caught by codespell.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/filter.c

@@ -531,7 +531,7 @@ do_pass:
 			*insn = BPF_LDX_MEM(BPF_W, BPF_REG_A, BPF_REG_CTX, fp->k);
 			break;
 
-		/* Unkown instruction. */
+		/* Unknown instruction. */
 		default:
 			goto err;
 		}

net/core/pktgen.c

@@ -97,7 +97,7 @@
  * New xmit() return, do_div and misc clean up by Stephen Hemminger
  * <shemminger@osdl.org> 040923
  *
- * Randy Dunlap fixed u64 printk compiler waring
+ * Randy Dunlap fixed u64 printk compiler warning
  *
  * Remove FCS from BW calculation.  Lennert Buytenhek <buytenh@wantstofly.org>
  * New time handling. Lennert Buytenhek <buytenh@wantstofly.org> 041213

net/ipv4/devinet.c

@@ -1186,7 +1186,7 @@ __be32 inet_select_addr(const struct net_device *dev, __be32 dst, int scope)
 no_in_dev:
 
 	/* Not loopback addresses on loopback should be preferred
-	   in this case. It is importnat that lo is the first interface
+	   in this case. It is important that lo is the first interface
 	   in dev_base list.
 	 */
 	for_each_netdev_rcu(net, dev) {