linux-kernel - [PATCH net-next] net/sched: Remove redundant memset(0) call in reset

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Message-ID: <20250811164039.43250-1-thorsten.blum@linux.dev>
Date: Mon, 11 Aug 2025 18:40:38 +0200
From: Thorsten Blum <thorsten.blum@...ux.dev>
To: Jamal Hadi Salim <jhs@...atatu.com>,
	Cong Wang <xiyou.wangcong@...il.com>,
	Jiri Pirko <jiri@...nulli.us>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>
Cc: Thorsten Blum <thorsten.blum@...ux.dev>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next] net/sched: Remove redundant memset(0) call in reset_policy()

The call to nla_strscpy() already zero-pads the tail of the destination
buffer which makes the additional memset(0) call redundant. Remove it.

Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
---
 net/sched/act_simple.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index f3abe0545989..8e69a919b4fe 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -72,7 +72,6 @@ static int reset_policy(struct tc_action *a, const struct nlattr *defdata,
 	d = to_defact(a);
 	spin_lock_bh(&d->tcf_lock);
 	goto_ch = tcf_action_set_ctrlact(a, p->action, goto_ch);
-	memset(d->tcfd_defdata, 0, SIMP_MAX_DATA);
 	nla_strscpy(d->tcfd_defdata, defdata, SIMP_MAX_DATA);
 	spin_unlock_bh(&d->tcf_lock);
 	if (goto_ch)
-- 
2.50.1