linux-kernel - linux-next: build failure after merge of the net-next tree

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Message-ID: <aXeka0KYBnrkwUcF@sirena.org.uk>
Date: Mon, 26 Jan 2026 17:29:15 +0000
From: Mark Brown <broonie@...nel.org>
To: David Miller <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Networking <netdev@...r.kernel.org>
Cc: Eric Dumazet <edumazet@...gle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the net-next tree

Hi all,

After merging the net-next tree, today's linux-next build (arm64
defconfig) failed like this:

/tmp/next/build/net/core/sysctl_net_core.c: In function 'proc_do_rss_key':
/tmp/next/build/net/core/sysctl_net_core.c:333:23: error: implicit declaration of function 'hex_byte_pack' [-Wimplicit-function-declaration]
  333 |                 pos = hex_byte_pack(pos, netdev_rss_key[i]);
      |                       ^~~~~~~~~~~~~
/tmp/next/build/net/core/sysctl_net_core.c:333:21: error: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
  333 |                 pos = hex_byte_pack(pos, netdev_rss_key[i]);
      |                     ^

Caused by commit

   37b0ea8fef56c (net: expand NETDEV_RSS_KEY_LEN to 256 bytes)

I have used the tree from 20260123 instead.

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