Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/net/fq_impl.h b/include/net/fq_impl.h
index be7c0fa..38a9a3d 100644
--- a/include/net/fq_impl.h
+++ b/include/net/fq_impl.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2016 Qualcomm Atheros, Inc
*
- * GPL v2
- *
* Based on net/sched/sch_fq_codel.c
*/
#ifndef __NET_SCHED_FQ_IMPL_H
@@ -107,21 +106,23 @@
return skb;
}
+static u32 fq_flow_idx(struct fq *fq, struct sk_buff *skb)
+{
+ u32 hash = skb_get_hash_perturb(skb, &fq->perturbation);
+
+ return reciprocal_scale(hash, fq->flows_cnt);
+}
+
static struct fq_flow *fq_flow_classify(struct fq *fq,
- struct fq_tin *tin,
+ struct fq_tin *tin, u32 idx,
struct sk_buff *skb,
fq_flow_get_default_t get_default_func)
{
struct fq_flow *flow;
- u32 hash;
- u32 idx;
lockdep_assert_held(&fq->lock);
- hash = skb_get_hash_perturb(skb, fq->perturbation);
- idx = reciprocal_scale(hash, fq->flows_cnt);
flow = &fq->flows[idx];
-
if (flow->tin && flow->tin != tin) {
flow = get_default_func(fq, tin, idx, skb);
tin->collisions++;
@@ -153,7 +154,7 @@
}
static void fq_tin_enqueue(struct fq *fq,
- struct fq_tin *tin,
+ struct fq_tin *tin, u32 idx,
struct sk_buff *skb,
fq_skb_free_t free_func,
fq_flow_get_default_t get_default_func)
@@ -163,7 +164,7 @@
lockdep_assert_held(&fq->lock);
- flow = fq_flow_classify(fq, tin, skb, get_default_func);
+ flow = fq_flow_classify(fq, tin, idx, skb, get_default_func);
flow->tin = tin;
flow->backlog += skb->len;
@@ -307,12 +308,12 @@
INIT_LIST_HEAD(&fq->backlogs);
spin_lock_init(&fq->lock);
fq->flows_cnt = max_t(u32, flows_cnt, 1);
- fq->perturbation = prandom_u32();
+ get_random_bytes(&fq->perturbation, sizeof(fq->perturbation));
fq->quantum = 300;
fq->limit = 8192;
fq->memory_limit = 16 << 20; /* 16 MBytes */
- fq->flows = kcalloc(fq->flows_cnt, sizeof(fq->flows[0]), GFP_KERNEL);
+ fq->flows = kvcalloc(fq->flows_cnt, sizeof(fq->flows[0]), GFP_KERNEL);
if (!fq->flows)
return -ENOMEM;
@@ -330,7 +331,7 @@
for (i = 0; i < fq->flows_cnt; i++)
fq_flow_reset(fq, &fq->flows[i], free_func);
- kfree(fq->flows);
+ kvfree(fq->flows);
fq->flows = NULL;
}