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Message-ID: <20250820144738.24250-3-fw@strlen.de>
Date: Wed, 20 Aug 2025 16:47:34 +0200
From: Florian Westphal <fw@...len.de>
To: <netdev@...r.kernel.org>
Cc: Paolo Abeni <pabeni@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	<netfilter-devel@...r.kernel.org>,
	pablo@...filter.org,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: [PATCH net-next 2/6] netfilter: nft_set_pipapo_avx2: Drop the comment regarding protection

From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

The comment claims that the kernel_fpu_begin_mask() below protects
access to the scratch map. This is not true because the access is only
protected by local_bh_disable() above.

Remove the misleading comment.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Signed-off-by: Florian Westphal <fw@...len.de>
---
 net/netfilter/nft_set_pipapo_avx2.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/netfilter/nft_set_pipapo_avx2.c b/net/netfilter/nft_set_pipapo_avx2.c
index 2f090e253caf..fc734a8545b4 100644
--- a/net/netfilter/nft_set_pipapo_avx2.c
+++ b/net/netfilter/nft_set_pipapo_avx2.c
@@ -1171,9 +1171,7 @@ nft_pipapo_avx2_lookup(const struct net *net, const struct nft_set *set,
 
 	m = rcu_dereference(priv->match);
 
-	/* This also protects access to all data related to scratch maps.
-	 *
-	 * Note that we don't need a valid MXCSR state for any of the
+	/* Note that we don't need a valid MXCSR state for any of the
 	 * operations we use here, so pass 0 as mask and spare a LDMXCSR
 	 * instruction.
 	 */
-- 
2.49.1


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