iwlwifi: mvm: drop too short packets silently

There's little value in this warning, we get a warning here
if firmware passes us a short packet, particularly in monitor
mode.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219132536.305d12cf51ac.I2e4e6874113b1e5d8ee467b8a2d90820cc6ddde9@changeidSigned-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c

@@ -176,18 +176,8 @@ static int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
 	 */
 	hdrlen += crypt_len;
 
-	if (WARN_ONCE(headlen < hdrlen,
-		      "invalid packet lengths (hdrlen=%d, len=%d, crypt_len=%d)\n",
-		      hdrlen, len, crypt_len)) {
-		/*
-		 * We warn and trace because we want to be able to see
-		 * it in trace-cmd as well.
-		 */
-		IWL_DEBUG_RX(mvm,
-			     "invalid packet lengths (hdrlen=%d, len=%d, crypt_len=%d)\n",
-			     hdrlen, len, crypt_len);
+	if (unlikely(headlen < hdrlen))
 		return -EINVAL;
-	}
 
 	skb_put_data(skb, hdr, hdrlen);
 	skb_put_data(skb, (u8 *)hdr + hdrlen + pad_len, headlen - hdrlen);