From: Larry Finger Date: Tue, 24 Feb 2015 15:23:01 +0000 (-0600) Subject: rtlwifi: Improve handling of IPv6 packets X-Git-Tag: v3.19.4~26 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=200f5a5c688f410b599805ff0f08c54aeffd3156;p=thirdparty%2Fkernel%2Fstable.git rtlwifi: Improve handling of IPv6 packets commit c8f0345586694a33f828bc6b177fb21eb1702325 upstream. Routine rtl_is_special_data() is supposed to identify packets that need to use a low bit rate so that the probability of successful transmission is high. The current version has a bug that causes all IPv6 packets to be labelled as special, with a corresponding low rate of transmission. A complete fix will be quite intrusive, but until that is available, all IPv6 packets are identified as regular. This patch also removes a magic number. Reported-and-tested-by: Alan Fisher Signed-off-by: Larry Finger Cc: Alan Fisher Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index 40b6d1d006d7a..af2486965782d 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -1314,8 +1314,11 @@ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) } return true; - } else if (0x86DD == ether_type) { - return true; + } else if (ETH_P_IPV6 == ether_type) { + /* TODO: Handle any IPv6 cases that need special handling. + * For now, always return false + */ + goto end; } end: