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authorJason A. Donenfeld <Jason@zx2c4.com>2022-10-10 05:44:02 +0300
committerJason A. Donenfeld <Jason@zx2c4.com>2022-11-18 04:15:15 +0300
commit8032bf1233a74627ce69b803608e650f3f35971c (patch)
tree1e15cd719358130192c59b8d5a61a0c3c9fbe82c /net/sched
parent7f576b2593a978451416424e75f69ad1e3ae4efe (diff)
downloadlinux-8032bf1233a74627ce69b803608e650f3f35971c.tar.xz
treewide: use get_random_u32_below() instead of deprecated function
This is a simple mechanical transformation done by: @@ expression E; @@ - prandom_u32_max + get_random_u32_below (E) Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs Reviewed-by: SeongJae Park <sj@kernel.org> # for damon Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> # for arm Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for mmc Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/act_gact.c2
-rw-r--r--net/sched/act_sample.c2
-rw-r--r--net/sched/sch_choke.c2
-rw-r--r--net/sched/sch_netem.c4
4 files changed, 5 insertions, 5 deletions
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index 62d682b96b88..be267ffaaba7 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -25,7 +25,7 @@ static struct tc_action_ops act_gact_ops;
static int gact_net_rand(struct tcf_gact *gact)
{
smp_rmb(); /* coupled with smp_wmb() in tcf_gact_init() */
- if (prandom_u32_max(gact->tcfg_pval))
+ if (get_random_u32_below(gact->tcfg_pval))
return gact->tcf_action;
return gact->tcfg_paction;
}
diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c
index 7a25477f5d99..4194480746b0 100644
--- a/net/sched/act_sample.c
+++ b/net/sched/act_sample.c
@@ -168,7 +168,7 @@ static int tcf_sample_act(struct sk_buff *skb, const struct tc_action *a,
psample_group = rcu_dereference_bh(s->psample_group);
/* randomly sample packets according to rate */
- if (psample_group && (prandom_u32_max(s->rate) == 0)) {
+ if (psample_group && (get_random_u32_below(s->rate) == 0)) {
if (!skb_at_tc_ingress(skb)) {
md.in_ifindex = skb->skb_iif;
md.out_ifindex = skb->dev->ifindex;
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index 3ac3e5c80b6f..19c851125901 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -183,7 +183,7 @@ static struct sk_buff *choke_peek_random(const struct choke_sched_data *q,
int retrys = 3;
do {
- *pidx = (q->head + prandom_u32_max(choke_len(q))) & q->tab_mask;
+ *pidx = (q->head + get_random_u32_below(choke_len(q))) & q->tab_mask;
skb = q->tab[*pidx];
if (skb)
return skb;
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index fb00ac40ecb7..6ef3021e1169 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -513,8 +513,8 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
goto finish_segs;
}
- skb->data[prandom_u32_max(skb_headlen(skb))] ^=
- 1<<prandom_u32_max(8);
+ skb->data[get_random_u32_below(skb_headlen(skb))] ^=
+ 1<<get_random_u32_below(8);
}
if (unlikely(sch->q.qlen >= sch->limit)) {