mac80211: update rt2x00 rx_status patch

[librecmc/librecmc.git] / package / mac80211 / patches / 306-pending-rt2x00-zero-out-rx_status.patch

diff --git a/package/mac80211/patches/306-pending-rt2x00-zero-out-rx_status.patch b/package/mac80211/patches/306-pending-rt2x00-zero-out-rx_status.patch
index 1580337adcdd67f8b2986c7bacda93d34331ac38..884b9428020b3fa176b4609f1fa5bb1f3f8d0169 100644 (file)
--- a/package/mac80211/patches/306-pending-rt2x00-zero-out-rx_status.patch
+++ b/package/mac80211/patches/306-pending-rt2x00-zero-out-rx_status.patch
@@ -1,12 +1,13 @@
-From 84b435b38a84c9a7e8ba33e8d02d2f967f847ce1 Mon Sep 17 00:00:00 2001
+From e922d683ca8001ce9a6272d6ab12d74e72c36521 Mon Sep 17 00:00:00 2001
 From: Gabor Juhos <juhosg@openwrt.org>
 Date: Tue, 11 Dec 2012 14:15:53 +0100
-Subject: [PATCH 1/3] rt2x00: zero-out rx_status
+Subject: [PATCH v2] rt2x00: zero-out rx_status
 
 In commit 'mac80211: support radiotap vendor namespace RX data'
-new fields were added to 'struct ieee80211_rx_status'.
-The rt2x00 driver does not initializes those fields and
-this can cause unexpected behaviour.
+new fields were added to 'struct ieee80211_rx_status' and those
+fileds must be zeroed. However the rt2x00 driver stores driver
+specific data in the cb array of the rx skbs, so the fields
+might contain garbage and this can cause unexpected behaviour.
 
 The rt2x00 driver from the compat-wireless-2012-12-01
 tarball caused the following warning:
@@ -38,15 +39,25 @@ zeroes.
 Cc: <users@rt2x00.serialmonkey.com>
 Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
 ---
- drivers/net/wireless/rt2x00/rt2x00dev.c |    2 ++
- 1 file changed, 2 insertions(+)
+v2:
+  - update the commit message and add a comment to the code
+  - drop the ath5k and p54 patches
+---
+ drivers/net/wireless/rt2x00/rt2x00dev.c |    8 ++++++++
+ 1 file changed, 8 insertions(+)
 
 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c
 +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
-@@ -685,6 +685,8 @@ void rt2x00lib_rxdone(struct queue_entry
+@@ -685,6 +685,14 @@ void rt2x00lib_rxdone(struct queue_entry
         * to mac80211.
         */
        rx_status = IEEE80211_SKB_RXCB(entry->skb);
++
++      /* Ensure that all fields of rx_status are initialized
++       * properly. The skb->cb array was used for driver
++       * specific informations, so rx_status might contain
++       * garbage.
++       */
 +      memset(rx_status, 0, sizeof(*rx_status));
 +
        rx_status->mactime = rxdesc.timestamp;