linux-kernel - [PATCH net-next] net: openvswitch: Use struct

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Message-Id: <e7746fbbd62371d286081d5266e88bbe8d3fe9f0.1683388991.git.christophe.jaillet@wanadoo.fr>
Date:   Sat,  6 May 2023 18:04:16 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Pravin B Shelar <pshelar@....org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        netdev@...r.kernel.org, dev@...nvswitch.org
Subject: [PATCH net-next] net: openvswitch: Use struct_size()

Use struct_size() instead of hand writing it.
This is less verbose and more informative.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
It will also help scripts when __counted_by macro will be added.
See [1].

[1]: https://lore.kernel.org/all/6453f739.170a0220.62695.7785@mx.google.com/
---
 net/openvswitch/meter.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c
index f2698d2316df..c4ebf810e4b1 100644
--- a/net/openvswitch/meter.c
+++ b/net/openvswitch/meter.c
@@ -69,9 +69,7 @@ static struct dp_meter_instance *dp_meter_instance_alloc(const u32 size)
 {
 	struct dp_meter_instance *ti;
 
-	ti = kvzalloc(sizeof(*ti) +
-		      sizeof(struct dp_meter *) * size,
-		      GFP_KERNEL);
+	ti = kvzalloc(struct_size(ti, dp_meters, size), GFP_KERNEL);
 	if (!ti)
 		return NULL;
 
-- 
2.34.1