diff options
Diffstat (limited to 'package/mac80211/patches/306-pending-rt2x00-zero-out-rx_status.patch')
| -rw-r--r-- | package/mac80211/patches/306-pending-rt2x00-zero-out-rx_status.patch | 54 |
1 files changed, 54 insertions, 0 deletions
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 new file mode 100644 index 000000000..1580337ad --- /dev/null +++ b/package/mac80211/patches/306-pending-rt2x00-zero-out-rx_status.patch @@ -0,0 +1,54 @@ +From 84b435b38a84c9a7e8ba33e8d02d2f967f847ce1 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 + +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. + +The rt2x00 driver from the compat-wireless-2012-12-01 +tarball caused the following warning: + + WARNING: at + /devel/ramips/build_dir/target-mipsel_r2_uClibc-0.9.33.2/linux-ramips_rt305x/ + compat-wireless-2012-12-01/net/mac80211/rx.c:115 ieee80211_rx_irqsafe+0x274/0xbcc + [mac80211]() + Modules linked in: dwc_otg ledtrig_usbdev nf_nat_irc + nf_nat_ftp nf_conntrack_irc nf_conntrack_ftp ipt_MASQUERADE + iptable_nat nf_nat pppoe xt_conntrack xt_CT xt_NOTRACK iptable_raw + xt_state nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack pppox + ipt_REJECT xt_TCPMSS xt_comment xt_multiport xt_mac xt_limit + iptable_mangle iptable_filter ip_tables xt_tcpudp x_tables ppp_async + ppp_generic slhc rt2800pci(O) rt2800lib(O) rt2x00soc(O) rt2x00pci(O) + rt2x00lib(O) mac80211(O) usbcore usb_common nls_base crc_itu_t + crc_ccitt eeprom_93cx6 cfg80211(O) compat(O) arc4 aes_generic + crypto_blkcipher cryptomgr aead crypto_hash crypto_algapi leds_gpio + button_hotplug(O) gpio_keys_polled input_polldev input_core + Call Trace: + [<801e96b4>] dump_stack+0x8/0x34 + [<80010a9c>] warn_slowpath_common+0x78/0xa4 + [<80010ae0>] warn_slowpath_null+0x18/0x24 + [<80a9710c>] ieee80211_rx_irqsafe+0x274/0xbcc [mac80211] + +The patch ensures that each field gets initialized with +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(+) + +--- a/drivers/net/wireless/rt2x00/rt2x00dev.c ++++ b/drivers/net/wireless/rt2x00/rt2x00dev.c +@@ -685,6 +685,8 @@ void rt2x00lib_rxdone(struct queue_entry + * to mac80211. + */ + rx_status = IEEE80211_SKB_RXCB(entry->skb); ++ memset(rx_status, 0, sizeof(*rx_status)); ++ + rx_status->mactime = rxdesc.timestamp; + rx_status->band = rt2x00dev->curr_band; + rx_status->freq = rt2x00dev->curr_freq; |