Author: landonf
Date: Tue Feb 13 20:07:40 2018
New Revision: 329241
URL: https://svnweb.freebsd.org/changeset/base/329241

Log:
  bwn(4): Conditionalize "RX decryption attempted" message on a new
  BWN_DEBUG_HWCRYPTO debug flag.
  
  The MAC will attempt decryption (and set BWN_RX_MAC_DEC) even if a key has
  not been supplied to the hardware; this is expected behavior, and there's
  no need to spam users' console with this debugging printf.

Modified:
  head/sys/dev/bwn/if_bwn.c
  head/sys/dev/bwn/if_bwn_debug.h

Modified: head/sys/dev/bwn/if_bwn.c
==============================================================================
--- head/sys/dev/bwn/if_bwn.c   Tue Feb 13 19:28:02 2018        (r329240)
+++ head/sys/dev/bwn/if_bwn.c   Tue Feb 13 20:07:40 2018        (r329241)
@@ -5983,7 +5983,6 @@ bwn_rxeof(struct bwn_mac *mac, struct mbuf *m, const v
        int padding, rate, rssi = 0, noise = 0, type;
        uint16_t phytype, phystat0, phystat3, chanstat;
        unsigned char *mp = mtod(m, unsigned char *);
-       static int rx_mac_dec_rpt = 0;
 
        BWN_ASSERT_LOCKED(sc);
 
@@ -6032,11 +6031,12 @@ bwn_rxeof(struct bwn_mac *mac, struct mbuf *m, const v
        }
        wh = mtod(m, struct ieee80211_frame_min *);
 
-       if (macstat & BWN_RX_MAC_DEC && rx_mac_dec_rpt++ < 50)
-               device_printf(sc->sc_dev,
+       if (macstat & BWN_RX_MAC_DEC) {
+               DPRINTF(sc, BWN_DEBUG_HWCRYPTO,
                    "RX decryption attempted (old %d keyidx %#x)\n",
                    BWN_ISOLDFMT(mac),
                    (macstat & BWN_RX_MAC_KEYIDX) >> BWN_RX_MAC_KEYIDX_SHIFT);
+       }
 
        if (phystat0 & BWN_RX_PHYST0_OFDM)
                rate = bwn_plcp_get_ofdmrate(mac, plcp,

Modified: head/sys/dev/bwn/if_bwn_debug.h
==============================================================================
--- head/sys/dev/bwn/if_bwn_debug.h     Tue Feb 13 19:28:02 2018        
(r329240)
+++ head/sys/dev/bwn/if_bwn_debug.h     Tue Feb 13 20:07:40 2018        
(r329241)
@@ -53,6 +53,7 @@ enum {
        BWN_DEBUG_XMIT_POWER    = 0x00020000,
        BWN_DEBUG_PHY           = 0x00040000,
        BWN_DEBUG_EEPROM        = 0x00080000,
+       BWN_DEBUG_HWCRYPTO      = 0x00100000,   /* HW crypto */
        BWN_DEBUG_FATAL         = 0x80000000,   /* fatal errors */
        BWN_DEBUG_ANY           = 0xffffffff
 };
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