From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 07CBFC282DD for ; Thu, 23 May 2019 19:34:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 98C052133D for ; Thu, 23 May 2019 19:34:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558640083; bh=DR2Hg/fRrmYxcQi0/v7BdYlawFDvUxGS549mG4XxQ/k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=DGJVxfIGqNbiF7nZw5cZrXjqk1ibFj0xH1YjryZ/1hohbFGunZrGTgseMOv8DF1I1 o1Bm6pkE4L+B7pHhfJowF20QalPElv6y1C0TwUw6A+hvVS+CEFA3KIGMVx+LKdivY3 RpKa6Yi04Gja4o8529jph5dLidtvAXE2WEnvmvfA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391267AbfEWT1h (ORCPT ); Thu, 23 May 2019 15:27:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:39822 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391602AbfEWT1b (ORCPT ); Thu, 23 May 2019 15:27:31 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 77A5120879; Thu, 23 May 2019 19:27:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558639651; bh=DR2Hg/fRrmYxcQi0/v7BdYlawFDvUxGS549mG4XxQ/k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i4z6KDybygXaEolqAabH1d7fFTQWCPytBWOywPZjkNKmMOGssWecx9XoAvOtQb2wb LnQZNUSSlkrhj+cnvb6BOICrIh4FnZuPCTdn+Q9J5r2TAQ+byMprBxkqgYCl+1CkAL oBoU4I95Z5M8WJwHCLfFefkRC4PRfJXZDKuJqsfA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Helge Deller Subject: [PATCH 5.1 028/122] parisc: Skip registering LED when running in QEMU Date: Thu, 23 May 2019 21:05:50 +0200 Message-Id: <20190523181708.591066325@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190523181705.091418060@linuxfoundation.org> References: <20190523181705.091418060@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Helge Deller commit b438749044356dd1329c45e9b5a9377b6ea13eb2 upstream. No need to spend CPU cycles when we run on QEMU. Signed-off-by: Helge Deller CC: stable@vger.kernel.org # v4.9+ Signed-off-by: Greg Kroah-Hartman --- drivers/parisc/led.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/parisc/led.c +++ b/drivers/parisc/led.c @@ -568,6 +568,9 @@ int __init register_led_driver(int model break; case DISPLAY_MODEL_LASI: + /* Skip to register LED in QEMU */ + if (running_on_qemu) + return 1; LED_DATA_REG = data_reg; led_func_ptr = led_LASI_driver; printk(KERN_INFO "LED display at %lx registered\n", LED_DATA_REG);