[source] mac80211: disable fq until performance issues have been found and fixed

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=4952469ff9278288d766b28247a17694b1c4faaa

commit 4952469ff9278288d766b28247a17694b1c4faaa
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue Jul 12 12:32:54 2016 +0200

    mac80211: disable fq until performance issues have been found and fixed
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 package/kernel/mac80211/patches/220-fq_disable_hack.patch | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/package/kernel/mac80211/patches/220-fq_disable_hack.patch b/package/kernel/mac80211/patches/220-fq_disable_hack.patch
new file mode 100644
index 0000000..c5721b5
--- /dev/null
+++ b/package/kernel/mac80211/patches/220-fq_disable_hack.patch
@@ -0,0 +1,15 @@
+mac80211 fq has been found to cause a regression in multi-stream TCP
+performance. Disable it until the cause has been found and fixed
+
+--- a/include/net/fq_impl.h
++++ b/include/net/fq_impl.h
+@@ -104,6 +104,9 @@ static struct fq_flow *fq_flow_classify(
+ 
+ 	lockdep_assert_held(&fq->lock);
+ 
++	/* HACK: disable fq for now until TCP issues are fixed */
++	return get_default_func(fq, tin, idx, skb);
++
+ 	hash = skb_get_hash_perturb(skb, fq->perturbation);
+ 	idx = reciprocal_scale(hash, fq->flows_cnt);
+ 	flow = &fq->flows[idx];