From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752235AbbKKNs4 (ORCPT ); Wed, 11 Nov 2015 08:48:56 -0500 Received: from www.linutronix.de ([62.245.132.108]:48765 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752111AbbKKNsz (ORCPT ); Wed, 11 Nov 2015 08:48:55 -0500 From: John Ogness To: Benjamin Herrenschmidt Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH] powerpc: set IRQF_NO_THREAD for xmon/cascade handlers Date: Wed, 11 Nov 2015 14:48:50 +0100 Message-ID: <874mgsoddp.fsf@linutronix.de> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001,URIBL_BLOCKED=0.001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The xmon and cascade irq handlers must not run as threads. pmac_pic_lock is already a raw_spinlock, but the irq flag IRQF_NO_THREAD needs to be set as well. Signed-off-by: John Ogness --- arch/powerpc/platforms/powermac/pic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 6f4f8b0..9815463 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -258,13 +258,14 @@ static unsigned int pmac_pic_get_irq(void) #ifdef CONFIG_XMON static struct irqaction xmon_action = { .handler = xmon_irq, - .flags = 0, + .flags = IRQF_NO_THREAD, .name = "NMI - XMON" }; #endif static struct irqaction gatwick_cascade_action = { .handler = gatwick_action, + .flags = IRQF_NO_THREAD, .name = "cascade", }; -- 1.7.10.4