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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 91474C433E0 for ; Wed, 27 May 2020 12:25:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E1EB20873 for ; Wed, 27 May 2020 12:25:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590582358; bh=CI6ZUH/O6aqTBvIkDI9U0uYsW6TAdMGrPW9I0KuSBzM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=HHhpEgqp4PEX1kXy8ZhJUzmdm3ESx0jKjGxltVx/4Dc0qCYGcxGFBZhavB+Q+BZfD wiyj+ZwWoRk69FZkd+fAa5GUkhTVBjJZy0YeNrqdlw516mrIvD399GezfJf/fdxGtr 744Hhcnr5+tGmXoM44whXZ1a9h/9MKDYQT0SWLzo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729919AbgE0MZ5 (ORCPT ); Wed, 27 May 2020 08:25:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:47488 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725872AbgE0MZ5 (ORCPT ); Wed, 27 May 2020 08:25:57 -0400 Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 47E31207D8; Wed, 27 May 2020 12:25:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590582356; bh=CI6ZUH/O6aqTBvIkDI9U0uYsW6TAdMGrPW9I0KuSBzM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=giXOSsWX1tfeRC3y3wfvOE+KqNzme8wtOZsQnCY1sOb8X/fCmLyEEsU3Tt2k+FOfI GCo257OUf98XszZXQOw2E5xzYd2R8ssR+SMZwhDIT9w5EHCc51xXHQkICKVmdPZHrm 5sDRTzAfjXMOeyOaOjOrnOieRFZ/fg5Q5vO6bt74= From: Will Deacon To: linux-arm-kernel@lists.infradead.org, Anshuman Khandual Cc: catalin.marinas@arm.com, Will Deacon , linux-kernel@vger.kernel.org, Mark Brown , mark.rutland@arm.com, suzuki.poulose@arm.com Subject: Re: [PATCH V3] arm64/cpufeature: Add get_arm64_ftr_reg_nowarn() Date: Wed, 27 May 2020 13:25:49 +0100 Message-Id: <159057996975.77588.7036217455816555869.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <1590573876-19120-1-git-send-email-anshuman.khandual@arm.com> References: <1590573876-19120-1-git-send-email-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 27 May 2020 15:34:36 +0530, Anshuman Khandual wrote: > There is no way to proceed when requested register could not be searched in > arm64_ftr_reg[]. Requesting for a non present register would be an error as > well. Hence lets just WARN_ON() when search fails in get_arm64_ftr_reg() > rather than checking for return value and doing a BUG_ON() instead in some > individual callers. But there are also caller instances that dont error out > when register search fails. Add a new helper get_arm64_ftr_reg_nowarn() for > such cases. Applied to arm64 (for-next/cpufeature), thanks! [1/1] arm64/cpufeature: Add get_arm64_ftr_reg_nowarn() https://git.kernel.org/arm64/c/3577dd37c703 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev