From patchwork Mon Sep 16 18:57:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 13805749 X-Patchwork-Delegate: kuba@kernel.org Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5829B2628C; Mon, 16 Sep 2024 18:57:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726513061; cv=none; b=Sscud5lJdkure2ad2yUYHCtdUDfBM8H1oNo2V8zqgzXxrP8Ty3CRUOjY25Lt4y/iFtD/7HJGnsVr0V8dsKzb5fJHHSZxd6tWOX0GqvK4O6zg5LgcwX+HLCZYehaw71QmgDmb/UR5TdTIz39wqxtNwiOCCh7Ywz0GwFIZ1ndzfco= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726513061; c=relaxed/simple; bh=Acz1KDzvC3yGxPaMfyzhFHnrbE2hmHZcdquVdNRdSdc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=L4ryfo0AvfjJqSYnVHPPbOmsS9IU9gT//XW8M3UT8G+G7JlE7ONZOzn2LIgjUuSHpoLyp3ykVc/VimmLHsRvI1JBC8jdSzj2BZxgsUolhwagNccPr8OlHIZ8KqJWCA9wa4MR2pz0Uli6oZ0qhhV9+VEwMCud/IRnRCR0i/WZhCw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=MZnn4ipV; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=0Ne+l08m; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="MZnn4ipV"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="0Ne+l08m" From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1726513057; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=uCmN/cZCPzCftbZp8I+nP+HMZCAR3HVMPzJ6bFU94XI=; b=MZnn4ipV7Q5r5blo2CqdYGgJBHFKN2DpLKekZMzZW5qs8vN/OS2MrV9iy55W9TMTgTGzGn RVUyRKCdT5vuAoLEnKP0TWLw0WykH7L/aG0YZfQYBl+yCthv0q/76lQQCY+J6lVyj/RYZn tm83EFoyFLH1zxC9MdVfIf19eh/IjTh9T6B4E95lOvPzC61/xB3hG4ZCd/QwM2+1pUUV6O tS4EVeQVXCHxQ1l65rHP8vcTy6UBxgnWps7YP/lUbPhNGAqJZ4E1ojwT7k8t3fXC0PLgc7 nYEF4A6uat9pv6kLTzWKO37hvLwUBftmexyHssgVWSNsO6iC99HOCi5HEMT7ng== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1726513057; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=uCmN/cZCPzCftbZp8I+nP+HMZCAR3HVMPzJ6bFU94XI=; b=0Ne+l08mxA4rujqSaP8wr0JJtpD7J1nFZrH14AGm18+P+l1dGusWpwuc7Sq/1pTTJwT1Y0 bER9pMq4wmyqb7BA== Date: Mon, 16 Sep 2024 20:57:13 +0200 Subject: [PATCH net v2] net: ipv6: select DST_CACHE from IPV6_RPL_LWTUNNEL Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240916-ipv6_rpl_lwtunnel-dst_cache-v2-1-e36be2c3a437@linutronix.de> X-B4-Tracking: v=1; b=H4sIAIh/6GYC/42NWw6DIBBFt2LmuzSCr9qv7qMxxsJQJyFgAKmNc e8lrqCf59zk3B0CesIA92IHj4kCOZtBXAqQ82TfyEhlBlGKuux5y2hJ7egXM5pPXK1Fw1SIo5z kjEyIpuV9d9NVoyEXFo+atrP+BIsRhixnCtH57/mY+Dn9FU+ccSarWjWqe02drh6G7Bq9s7RdF cJwHMcPODuCW88AAAA= To: "David S. Miller" , David Ahern , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexander Aring Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Thomas_W?= =?utf-8?q?ei=C3=9Fschuh?= , Simon Horman X-Developer-Signature: v=1; a=ed25519-sha256; t=1726513057; l=1527; i=thomas.weissschuh@linutronix.de; s=20240209; h=from:subject:message-id; bh=Acz1KDzvC3yGxPaMfyzhFHnrbE2hmHZcdquVdNRdSdc=; b=vbR78kapKhOE21VGUPvp/TfXRpOF1XT6E3ujb6uefg5kh0VBL/y0WgtZBobSbFUEapnSay0ea GEM4YWTfuhSBPUUcV3T/kHQRu+rntjyto+aN76rpzdIHyK4Yl4MYlaS X-Developer-Key: i=thomas.weissschuh@linutronix.de; a=ed25519; pk=pfvxvpFUDJV2h2nY0FidLUml22uGLSjByFbM6aqQQws= X-Patchwork-Delegate: kuba@kernel.org The rpl sr tunnel code contains calls to dst_cache_*() which are only present when the dst cache is built. Select DST_CACHE to build the dst cache, similar to other kconfig options in the same file. Compiling the rpl sr tunnel without DST_CACHE will lead to linker errors. Fixes: a7a29f9c361f ("net: ipv6: add rpl sr tunnel") Signed-off-by: Thomas Weißschuh Reviewed-by: Simon Horman Tested-by: Simon Horman # build-tested --- Changes in v2: - Fix Signed-off-by - Remove Cc stable as per net/ rules - Add Simons tags - Expand commit message a bit - Link to v1: https://lore.kernel.org/r/20240916-ipv6_rpl_lwtunnel-dst_cache-v1-1-c34d5d7ba7f3@linutronix.de --- This is currently affecting the s390 defconfig. In my opinion this patch should also be backported to stable. --- net/ipv6/Kconfig | 1 + 1 file changed, 1 insertion(+) --- base-commit: ad060dbbcfcfcba624ef1a75e1d71365a98b86d8 change-id: 20240916-ipv6_rpl_lwtunnel-dst_cache-22561978f35f Best regards, diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig index 08d4b7132d4c..1c9c686d9522 100644 --- a/net/ipv6/Kconfig +++ b/net/ipv6/Kconfig @@ -323,6 +323,7 @@ config IPV6_RPL_LWTUNNEL bool "IPv6: RPL Source Routing Header support" depends on IPV6 select LWTUNNEL + select DST_CACHE help Support for RFC6554 RPL Source Routing Header using the lightweight tunnels mechanism.