Comments
Patch
@@ -1343,6 +1343,20 @@ static int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
vif_priv->ctx = ctx;
ctx->vif = vif;
+ /*
+ * In SNIFFER device type, the firmware reports the FCS to
+ * the host, rather than snipping it off. Unfortunately,
+ * mac80211 doesn't (yet) provide a per-packet flag for
+ * this, so that we have to set the hardware flag based
+ * on the interfaces added. As the monitor interface can
+ * only be present by itself, and will be removed before
+ * other interfaces are added, this is safe.
+ */
+ if (vif->type == NL80211_IFTYPE_MONITOR)
+ priv->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS;
+ else
+ priv->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS;
+
err = iwl_setup_interface(priv, ctx);
if (!err || reset)
goto out;
This is a note to let you know that I have just added a patch titled iwlwifi: fix monitor mode FCS flag to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ From 14845d29bed8d17aa84cefaca00bcc87bf1edeb3 Mon Sep 17 00:00:00 2001 From: Johannes Berg <johannes.berg@intel.com> Date: Tue, 13 Nov 2012 21:28:44 +0100 Subject: [PATCH] iwlwifi: fix monitor mode FCS flag commit 04baaa27b43d389879237b32f8bd194a94cf1ca7 upstream. When the firmware is in SNIFFER mode, it leaves the FCS at the end of frame. Not telling mac80211 means it won't add the right flag to the radiotap header and that confuses wireshark. Since mac80211 doesn't have a per-packet flag, set the HW flag dynamically. This works as the monitor vif can only be present in the driver by itself. This fixes a regression introduced by my commit 578977264199de9815ace51ade87cec4894cf010 Author: Johannes Berg <johannes.berg@intel.com> Date: Fri May 11 10:53:18 2012 +0200 iwlwifi: support explicit monitor interface Reported-by: MARK PHILLIPS <mark.phillips@virgin.net> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> [ herton: adjust file name to be patched ] Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> --- drivers/net/wireless/iwlwifi/iwl-mac80211.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) -- 1.7.9.5