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From: Florian Westphal <fw@strlen.de>
To: <netdev@vger.kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>,
	<netfilter-devel@vger.kernel.org>,
	pablo@netfilter.org
Subject: [PATCH net 06/10] include: uapi: netfilter_bridge.h: Cover for musl libc
Date: Tue, 17 Feb 2026 17:32:29 +0100	[thread overview]
Message-ID: <20260217163233.31455-7-fw@strlen.de> (raw)
In-Reply-To: <20260217163233.31455-1-fw@strlen.de>

From: Phil Sutter <phil@nwl.cc>

Musl defines its own struct ethhdr and thus defines __UAPI_DEF_ETHHDR to
zero. To avoid struct redefinition errors, user space is therefore
supposed to include netinet/if_ether.h before (or instead of)
linux/if_ether.h. To relieve them from this burden, include the libc
header here if not building for kernel space.

Reported-by: Alyssa Ross <hi@alyssa.is>
Suggested-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
---
 include/uapi/linux/netfilter_bridge.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/uapi/linux/netfilter_bridge.h b/include/uapi/linux/netfilter_bridge.h
index f6e8d1e05c97..758de72b2764 100644
--- a/include/uapi/linux/netfilter_bridge.h
+++ b/include/uapi/linux/netfilter_bridge.h
@@ -5,6 +5,10 @@
 /* bridge-specific defines for netfilter. 
  */
 
+#ifndef __KERNEL__
+#include <netinet/if_ether.h>	/* for __UAPI_DEF_ETHHDR if defined */
+#endif
+
 #include <linux/in.h>
 #include <linux/netfilter.h>
 #include <linux/if_ether.h>
-- 
2.52.0


  parent reply	other threads:[~2026-02-17 16:33 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-17 16:32 [PATCH net 00/10] netfilter: updates for net Florian Westphal
2026-02-17 16:32 ` [PATCH net 01/10] netfilter: annotate NAT helper hook pointers with __rcu Florian Westphal
2026-02-19  1:20   ` patchwork-bot+netdevbpf
2026-02-17 16:32 ` [PATCH net 02/10] netfilter: nft_counter: serialize reset with spinlock Florian Westphal
2026-02-17 16:32 ` [PATCH net 03/10] netfilter: nft_quota: use atomic64_xchg for reset Florian Westphal
2026-02-17 16:32 ` [PATCH net 04/10] netfilter: nf_tables: revert commit_mutex usage in reset path Florian Westphal
2026-02-17 16:32 ` [PATCH net 05/10] netfilter: nf_conntrack_h323: don't pass uninitialised l3num value Florian Westphal
2026-02-17 16:32 ` Florian Westphal [this message]
2026-02-17 16:32 ` [PATCH net 07/10] ipvs: skip ipv6 extension headers for csum checks Florian Westphal
2026-02-17 16:32 ` [PATCH net 08/10] ipvs: do not keep dest_dst if dev is going down Florian Westphal
2026-02-17 16:32 ` [PATCH net 09/10] net: remove WARN_ON_ONCE when accessing forward path array Florian Westphal
2026-02-17 16:32 ` [PATCH net 10/10] netfilter: nf_tables: fix use-after-free in nf_tables_addchain() Florian Westphal

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