From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761024AbYEFMnx (ORCPT ); Tue, 6 May 2008 08:43:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753850AbYEFMnq (ORCPT ); Tue, 6 May 2008 08:43:46 -0400 Received: from gv-out-0910.google.com ([216.239.58.184]:58023 "EHLO gv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754089AbYEFMnp (ORCPT ); Tue, 6 May 2008 08:43:45 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=fpRaQMONt7qtUscujjmQlnoK9w1fTBXWJBoZY7MJY5kWhGVS8Ir53NqUXT2c/ymTw4UmKzHRAvKmznv2HTBGXVSghsL52QEGSeR4YRLwObY51JzwcSlpK+uiEAUXYipfsh/SO3x5cPmZT13dey0lJkbyQw7VUeUEFDPmKaxd/M8= Message-ID: Date: Tue, 6 May 2008 14:43:43 +0200 From: "Esben Haabendal" To: linux-kernel@vger.kernel.org Subject: IRQ_NOAUTOEN in __set_irq_handler MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Would it be possible to have support for IRQ_NOAUTOEN in __set_irq_handler and thus set_irq_chained_handler? Something like: @@ -582,14 +582,19 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, } desc->handle_irq = handle; desc->name = name; if (handle != handle_bad_irq && is_chained) { - desc->status &= ~IRQ_DISABLED; desc->status |= IRQ_NOREQUEST | IRQ_NOPROBE; - desc->depth = 0; - desc->chip->unmask(irq); + if (!(desc->status & IRQ_NOAUTOEN)) { + desc->depth = 0; + desc->status &= ~IRQ_DISABLED; + desc->chip->unmask(irq); + } else { + /* Undo nested disables: */ + desc->depth = 1; + } } spin_unlock_irqrestore(&desc->lock, flags); } void