From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 267C0415F2D; Fri, 7 Aug 2026 15:12:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786115537; cv=none; b=ZVwNMfnOugPmO1chq7/tyW/o6jrvPNWIoZ0CxlekbXao9uvExv8GWH62bWPmUaVc1diDu1RNwq3NACx5V890JPyWE/OtdESBfTUHHHsJru403EdQP4oX3oUCwWBLU1h75sjkHXwp41mHBWuiewwvQ5PGEiZo/vxK/1k28WAFx84= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786115537; c=relaxed/simple; bh=dwl3G85dpkBoGBHF1elWwyTHdrtVuFCMLIMIlId1Hv4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=a1Vyol5ZWWCg9BsLH9FE4EsSccIC1XaQnVMVJEWmNzWpUD6qTEzSdw5qxRe5Ztk8k4iSejn0SpTCFODOn20zR2OcR5zle6rf/ke35ySmJX0OG1aNSCicel3xw/cjz0lG5WYYwO3lHXNiVu3LkdO4G06MFBEu9aES3jdGT1VNz48= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jQvVqxzd; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="jQvVqxzd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D40F01F00A3A; Fri, 7 Aug 2026 15:12:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786115534; bh=yTknyh8JNB7bav6jgohNukVSfRn09ECAhTwD2QsI/sE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=jQvVqxzd6hfhA6YHwfhtzX0NCEcZsDHsaaipW6ZKRnq5IOPpGApnyTYjNLITV5TSN 65Gehr2kTjs+qEAlUw/W3avQNmpjhcjVeKMiQRxnZP4Vst+Sgpec61887ar8L8XDNf I5doGKjCEAdwYHhOCpy7Tp5cJN/sWKQztA9GbAfU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Avi Weiss , Pavel Pisa , stable@kernel.org, Marc Kleine-Budde Subject: [PATCH 6.18 310/396] can: ctucanfd: handle bus error interrupts Date: Fri, 7 Aug 2026 16:37:50 +0200 Message-ID: <20260807143430.956072176@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260807143424.272339768@linuxfoundation.org> References: <20260807143424.272339768@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Avi Weiss commit e74bae899529f49c0f375307983d12e8ecad7d4b upstream. Include REG_INT_STAT_BEI in the top-level error interrupt condition. BEI is enabled when CAN_CTRLMODE_BERR_REPORTING is requested and ctucan_err_interrupt() already handles it. Without checking and clearing BEI in the top-level handler, bus error interrupts are not handled or acknowledged. Fixes: 2dcb8e8782d8 ("can: ctucanfd: add support for CTU CAN FD open-source IP core - bus independent part.") Signed-off-by: Avi Weiss Acked-by: Pavel Pisa Link: https://patch.msgid.link/20260723074403.131575-1-thnkslprpt@gmail.com Cc: stable@kernel.org Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/ctucanfd/ctucanfd_base.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- a/drivers/net/can/ctucanfd/ctucanfd_base.c +++ b/drivers/net/can/ctucanfd/ctucanfd_base.c @@ -1136,8 +1136,12 @@ static irqreturn_t ctucan_interrupt(int /* Error interrupts */ if (FIELD_GET(REG_INT_STAT_EWLI, isr) || FIELD_GET(REG_INT_STAT_FCSI, isr) || - FIELD_GET(REG_INT_STAT_ALI, isr)) { - icr = isr & (REG_INT_STAT_EWLI | REG_INT_STAT_FCSI | REG_INT_STAT_ALI); + FIELD_GET(REG_INT_STAT_ALI, isr) || + FIELD_GET(REG_INT_STAT_BEI, isr)) { + icr = isr & (REG_INT_STAT_EWLI | + REG_INT_STAT_FCSI | + REG_INT_STAT_ALI | + REG_INT_STAT_BEI); ctucan_netdev_dbg(ndev, "some ERR interrupt: clearing 0x%08x\n", icr); ctucan_write32(priv, CTUCANFD_INT_STAT, icr);