From nobody Thu Oct 9 04:15:09 2025 Received: from mail-0301.mail-europe.com (mail-0301.mail-europe.com [188.165.51.139]) (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 937E9284B25 for ; Fri, 20 Jun 2025 10:00:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=188.165.51.139 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750413629; cv=none; b=jqmvKYqD39KKdCYDyKzPigiHf5zzWIM6p75C5w2oXKtk2n969W2uiwq2uXYHID9vj/0GZoIyIBJAkFG5yMJkM+PEj4KhbtL8zYs08CNO7/EqsGP8+WMdpxtWUdmyEDLBdDCrM7gpMmxAqgQ54mhXljJUsRkF9jDlTQOf5rmD9lw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750413629; c=relaxed/simple; bh=Qh0eD56oexLNcnFsB7QSFehrHbHv1+nlKA8RT+W0iFU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=aqTPGpPtymGfEOT7xXrIFjzJcwd+nNCNO097SWglLRYVBHw2BFn45r8S9qEneHBgMEtIUoTQvWIR5tf5TZ8gK19AahI1j39aF2F5VO9Zw1qgw1mby8MUHtk6BGnMHqedANdnmn5YdCao/h+eLI2FUjElBB3bfBWRftC+GCEnuhA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=geanix.com; spf=pass smtp.mailfrom=geanix.com; dkim=pass (2048-bit key) header.d=geanix.com header.i=@geanix.com header.b=LqzfNiej; arc=none smtp.client-ip=188.165.51.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=geanix.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=geanix.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=geanix.com header.i=@geanix.com header.b="LqzfNiej" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=geanix.com; s=protonmail; t=1750413608; x=1750672808; bh=JRde0elAJvrisH+EQ4PUJFqG0VzLpDnXSpexrfj9oto=; h=From:Date:Subject:Message-Id:To:Cc:From:To:Cc:Date:Subject: Reply-To:Feedback-ID:Message-ID:BIMI-Selector:List-Unsubscribe: List-Unsubscribe-Post; b=LqzfNiejijEGbtNsFio1k8cHAhcJZF8Z2mhpSXfjw9UQD9mBlKHU/vbSkixCUQ0xz ibpYtxodon3ROWj7ef1QtEMn2pnGqnZ9T8Ixnag9fZGbb+IJKSNsrOulrjSWD76GfB vPNrngBztZQqGTyvgfoiL+Cuj05oM22ZLJ0W7aRlP1nI6NCq0W10JRnwD2yniDlbth lTx5E2IG2MYphZ4Z5/zam/o5Z1ykPJKpTlnhUCTuzox+TPuuaq4eVJ23+2zG5ArB+z U2fIoQznrnOKB3kf2UEXpUdpipQnzrttoW9MWGFDZ6slxMLfcQjbP35Fho/PmBK4G/ 4LU2aFP88P0sw== X-Pm-Submission-Id: 4bNtJ74Mnwz1DDr8 From: Sean Nyekjaer Date: Fri, 20 Jun 2025 12:00:01 +0200 Subject: [PATCH] can: m_can: apply rate-limiting to lost msg in rx Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250620-mcan_ratelimit-v1-1-e747ee30f71f@geanix.com> X-B4-Tracking: v=1; b=H4sIACAxVWgC/x3MTQqAIBBA4avIrBNU6MeuEhFiYw2khUYE4t2Tl t/ivQwJI2GCkWWI+FCiM1TIhoHdTdiQ01oNSqhWdEpwb01YornxIE83xx6l0+vgjLZQoyuio/c fTnMpHz+PyQ1gAAAA X-Change-ID: 20250620-mcan_ratelimit-e7e1f9d8fa9c To: Chandrasekar Ramakrishnan , Marc Kleine-Budde , Vincent Mailhol , Fengguang Wu , Varka Bhadram , Dong Aisheng Cc: linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, Sean Nyekjaer X-Mailer: b4 0.14.2 Wrap the "msg lost in rxf0" error in m_can_handle_lost_msg() with a call to net_ratelimit() to prevent flooding the kernel log with repeated error messages. Fixes: e0d1f4816f2a ("can: m_can: add Bosch M_CAN controller support") Signed-off-by: Sean Nyekjaer Reviewed-by: Vincent Mailhol --- drivers/net/can/m_can/m_can.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 6c656bfdb3235e1f5d6405c49b07b821ddacc1b9..b0638d23879cf4257b8f4555d11= 23f45f9595ad7 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -665,7 +665,8 @@ static int m_can_handle_lost_msg(struct net_device *dev) struct can_frame *frame; u32 timestamp =3D 0; =20 - netdev_err(dev, "msg lost in rxf0\n"); + if (net_ratelimit()) + netdev_err(dev, "msg lost in rxf0\n"); =20 stats->rx_errors++; stats->rx_over_errors++; --- base-commit: db22720545207f734aaa9d9f71637bfc8b0155e0 change-id: 20250620-mcan_ratelimit-e7e1f9d8fa9c Best regards, --=20 Sean Nyekjaer