From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:36954 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729547AbeG0LdO (ORCPT ); Fri, 27 Jul 2018 07:33:14 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Anssi Hannula , Michal Simek , Marc Kleine-Budde Subject: [PATCH 4.4 21/23] can: xilinx_can: fix RX overflow interrupt not being enabled Date: Fri, 27 Jul 2018 12:09:22 +0200 Message-Id: <20180727100845.980260753@linuxfoundation.org> In-Reply-To: <20180727100845.054377089@linuxfoundation.org> References: <20180727100845.054377089@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Anssi Hannula commit 83997997252f5d3fc7f04abc24a89600c2b504ab upstream. RX overflow interrupt (RXOFLW) is disabled even though xcan_interrupt() processes it. This means that an RX overflow interrupt will only be processed when another interrupt gets asserted (e.g. for RX/TX). Fix that by enabling the RXOFLW interrupt. Fixes: b1201e44f50b ("can: xilinx CAN controller support") Signed-off-by: Anssi Hannula Cc: Michal Simek Cc: Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/xilinx_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -103,7 +103,7 @@ enum xcan_reg { #define XCAN_INTR_ALL (XCAN_IXR_TXOK_MASK | XCAN_IXR_BSOFF_MASK |\ XCAN_IXR_WKUP_MASK | XCAN_IXR_SLP_MASK | \ XCAN_IXR_RXNEMP_MASK | XCAN_IXR_ERROR_MASK | \ - XCAN_IXR_ARBLST_MASK) + XCAN_IXR_RXOFLW_MASK | XCAN_IXR_ARBLST_MASK) /* CAN register bit shift - XCAN___SHIFT */ #define XCAN_BTR_SJW_SHIFT 7 /* Synchronous jump width */