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[14/15] wifi: iwlwifi: mvm: log dropped packets due to MIC error

Message ID 20240129211905.41b0abbf1fd2.Ib6ec6a48ec7bebe769d1e1c1df96380a758a0975@changeid (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series wifi: iwlwifi: updates - 2024-01-29 | expand

Commit Message

Korenblit, Miriam Rachel Jan. 29, 2024, 7:22 p.m. UTC 
From: Daniel Gabay <daniel.gabay@intel.com>

When we drop frames due to MIC error we want to have something
printed in the logger (this won't be printed by default).

Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 451af501c7a1..67062fe40152 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -401,8 +401,11 @@  static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	case IWL_RX_MPDU_STATUS_SEC_GCM:
 		BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN);
 		/* alg is CCM: check MIC only */
-		if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))
+		if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) {
+			IWL_DEBUG_DROP(mvm,
+				       "Dropping packet, bad MIC (CCM/GCM)\n");
 			return -1;
+		}
 
 		stats->flag |= RX_FLAG_DECRYPTED | RX_FLAG_MIC_STRIPPED;
 		*crypt_len = IEEE80211_CCMP_HDR_LEN;