linux-kernel - [PATCH] netfilter: ipvs: Use the bitmap API to allocate bitmaps

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Message-Id: <420d8b70560e8711726ff639f0a55364e212ff26.1656962678.git.christophe.jaillet@wanadoo.fr>
Date:   Mon,  4 Jul 2022 21:24:46 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Simon Horman <horms@...ge.net.au>, Julian Anastasov <ja@....bg>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        "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, lvs-devel@...r.kernel.org,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org
Subject: [PATCH] netfilter: ipvs: Use the bitmap API to allocate bitmaps

Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 net/netfilter/ipvs/ip_vs_mh.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_mh.c b/net/netfilter/ipvs/ip_vs_mh.c
index da0280cec506..e3d7f5c879ce 100644
--- a/net/netfilter/ipvs/ip_vs_mh.c
+++ b/net/netfilter/ipvs/ip_vs_mh.c
@@ -174,8 +174,7 @@ static int ip_vs_mh_populate(struct ip_vs_mh_state *s,
 		return 0;
 	}
 
-	table = kcalloc(BITS_TO_LONGS(IP_VS_MH_TAB_SIZE),
-			sizeof(unsigned long), GFP_KERNEL);
+	table = bitmap_zalloc(IP_VS_MH_TAB_SIZE, GFP_KERNEL);
 	if (!table)
 		return -ENOMEM;
 
@@ -227,7 +226,7 @@ static int ip_vs_mh_populate(struct ip_vs_mh_state *s,
 	}
 
 out:
-	kfree(table);
+	bitmap_free(table);
 	return 0;
 }
 
-- 
2.34.1