Author: adrian
Date: Sun Jun  4 21:14:23 2017
New Revision: 319582
URL: https://svnweb.freebsd.org/changeset/base/319582

Log:
  [iwm] Ignore IWM_DEBUG_LOG_MSG notifications.
  
  * Firmware versions 21 and 22 generate some IWM_DEBUG_LOG_MSG notifications,
    which seem to be harmless. Avoid spamming the system log with
    "frame ... UNHANDLED (this should not happen)" messages.
  
  Obtained from:        dragonflybsd.git 
dda889ac57d8e5b46bb1b1ecf53c17a18481c7c8

Modified:
  head/sys/dev/iwm/if_iwm.c

Modified: head/sys/dev/iwm/if_iwm.c
==============================================================================
--- head/sys/dev/iwm/if_iwm.c   Sun Jun  4 21:13:13 2017        (r319581)
+++ head/sys/dev/iwm/if_iwm.c   Sun Jun  4 21:14:23 2017        (r319582)
@@ -5190,7 +5190,7 @@ iwm_handle_rxb(struct iwm_softc *sc, struct mbuf *m)
                    "rx packet qid=%d idx=%d type=%x\n",
                    qid & ~0x80, pkt->hdr.idx, code);
 
-               len = le32toh(pkt->len_n_flags) & IWM_FH_RSCSR_FRAME_SIZE_MSK;
+               len = iwm_rx_packet_len(pkt);
                len += sizeof(uint32_t); /* account for status word */
                nextoff = offset + roundup2(len, IWM_FH_RSCSR_FRAME_ALIGN);
 
@@ -5428,6 +5428,13 @@ iwm_handle_rxb(struct iwm_softc *sc, struct mbuf *m)
                            notif->status, notif->action);
                        break;
                }
+
+               /*
+                * Firmware versions 21 and 22 generate some DEBUG_LOG_MSG
+                * messages. Just ignore them for now.
+                */
+               case IWM_DEBUG_LOG_MSG:
+                       break;
 
                case IWM_MCAST_FILTER_CMD:
                        break;
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