From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:50657 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932077AbbLGMQy (ORCPT ); Mon, 7 Dec 2015 07:16:54 -0500 Subject: Patch "net: mvneta: Fix CPU_MAP registers initialisation" has been added to the 4.2-stable tree To: maxime.ripard@free-electrons.com, davem@davemloft.net, gregkh@linuxfoundation.org, gregory.clement@free-electrons.com Cc: , From: Date: Mon, 07 Dec 2015 00:15:14 -0800 Message-ID: <1449476114227145@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled net: mvneta: Fix CPU_MAP registers initialisation to the 4.2-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: net-mvneta-fix-cpu_map-registers-initialisation.patch and it can be found in the queue-4.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 2502d0ef272da7058ef303b849a2c8dc324c2e2e Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 25 Sep 2015 18:09:35 +0200 Subject: net: mvneta: Fix CPU_MAP registers initialisation From: Maxime Ripard commit 2502d0ef272da7058ef303b849a2c8dc324c2e2e upstream. The CPU_MAP register is duplicated for each CPUs at different addresses, each instance being at a different address. However, the code so far was using CONFIG_NR_CPUS to initialise the CPU_MAP registers for each registers, while the SoCs embed at most 4 CPUs. This is especially an issue with multi_v7_defconfig, where CONFIG_NR_CPUS is currently set to 16, resulting in writes to registers that are not CPU_MAP. Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit") Signed-off-by: Maxime Ripard Signed-off-by: Gregory CLEMENT Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/marvell/mvneta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -949,7 +949,7 @@ static void mvneta_defaults_set(struct m /* Set CPU queue access map - all CPUs have access to all RX * queues and to all TX queues */ - for (cpu = 0; cpu < CONFIG_NR_CPUS; cpu++) + for_each_present_cpu(cpu) mvreg_write(pp, MVNETA_CPU_MAP(cpu), (MVNETA_CPU_RXQ_ACCESS_ALL_MASK | MVNETA_CPU_TXQ_ACCESS_ALL_MASK)); Patches currently in stable-queue which might be from maxime.ripard@free-electrons.com are queue-4.2/net-mvneta-fix-cpu_map-registers-initialisation.patch queue-4.2/arm-dts-sun6i-hummingbird-fix-vdd-cpu-and-vdd-gpu.patch