Received: by 2002:a25:ca44:0:0:0:0:0 with SMTP id a65csp1093868ybg; Wed, 29 Jul 2020 05:49:25 -0700 (PDT) X-Google-Smtp-Source: ABdhPJw54zdrp1lSJnZpa7UEhjPsd3Y6afPadpUvf3WuXrU40vAI11A9zOavTG6Jd1ZlitCitIHa X-Received: by 2002:aa7:d809:: with SMTP id v9mr18103973edq.94.1596026965410; Wed, 29 Jul 2020 05:49:25 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1596026965; cv=none; d=google.com; s=arc-20160816; b=b4eSLd+SRnF/4o0jd3rafJv0yTdmNPLUBz2gQfWjW16u/GIQk/JPQ8JZ0Uwh7nxygb t6sJKsTfar+Ui5hypEXFwxQBGAjL41//YqtGE3ILHZlpD575IeuOWpCr/OH+IFtF+yE2 8/RCunax6LikjgyS8kBk81sOvFTSwvyDEAxbONv29tZk48Z3/70Jrd6eej7veRYwD0G4 TBwgg8GdZTJDCZ7I8shFd5R0F3Nl8mt/2ZkCwwXEiztmF/SFMV9IcK3p35Bjdt5mE0wx USmIAkuU4S5LFU1U50p8tqF+QxvaGbZoDX5fmznRi5bi7p6h6XhOLofRbnopznhplAj7 U10A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=yYkMg9oo+eIA5xPDTODwyrduO9h1EYb6IRxHzdvCDzM=; b=MhwLzzjI6PiwLVQ+1DVtQhJOO7ri4vrMyhVz437e1ZsndH9G7bsbD/7yWDBOOwPQg2 ip/CVyqcw9fk9teyGI+bpVNPhgLsf7NfFCKNW8LdsQivBu2IIDoMNbdte0vjC11srxUW tvo11VFiMBl06HjGfI53AFzUfL/UAQKnso9HS5fG0tAwmIHjmCNGFIcSw0/7vqILBmnC 91PFCTOdA8x+GS2jknr7sJRr98bZvNSRyHAC4uO6xo6mQ9Xb6EVNigXWfYaPmGcT2V4s 7LU08H0dEid265qD1YETgQd8ALyngj/R/nGGTpnl7ZCcCCtK/j/GfTd5TWt8W4YC0zkT Bu6Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=merlin.20170209 header.b=BxoZM5q3; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id t21si1194665eds.460.2020.07.29.05.49.02; Wed, 29 Jul 2020 05:49:25 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=merlin.20170209 header.b=BxoZM5q3; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726872AbgG2MsK (ORCPT + 99 others); Wed, 29 Jul 2020 08:48:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726353AbgG2MsK (ORCPT ); Wed, 29 Jul 2020 08:48:10 -0400 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04FE3C061794; Wed, 29 Jul 2020 05:48:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=yYkMg9oo+eIA5xPDTODwyrduO9h1EYb6IRxHzdvCDzM=; b=BxoZM5q3nVMman3md9NIGIcJj+ gDcrN6pf7bPrP5mIR61HwNxBP7+WN01L+Yam0o2fgbhmyfpEb7mZmQQqBrIL0aogqE+WxlNDfe/I9 AJBdjlX+Yy2jXpTT2UZIBGof8kkmz48pmeKF2hMFcwZ1/H19C/eEZRBIlzuGg0y1qjzm0a4lm1INA 7dS58u2kVhqbynAHp36mhcmW03HOjbc4Zf3HUrsY0KtIK/eWEDgfHhCWe5m3zxgPZmpIgkNg6ZLHX aYafkV1wwcjb+pkoiQSqIr3hiVudsA49yqenwv9osKXgrOqmpnxO44PqgbY1/Uh99qXSzbLSAcgz7 mApOt57w==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1k0lUo-0000os-Do; Wed, 29 Jul 2020 12:47:46 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 993E030411F; Wed, 29 Jul 2020 14:47:44 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 7682F203D06A4; Wed, 29 Jul 2020 14:47:44 +0200 (CEST) Date: Wed, 29 Jul 2020 14:47:44 +0200 From: peterz@infradead.org To: Herbert Xu Cc: Stephen Rothwell , Petr Mladek , Linux Next Mailing List , Linux Kernel Mailing List , Sergey Senozhatsky , Andy Shevchenko , "Steven Rostedt (VMware)" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, Waiman Long Subject: Re: [PATCH 0/2] locking/qspinlock: Break qspinlock_types.h header loop Message-ID: <20200729124744.GC2638@hirez.programming.kicks-ass.net> References: <20200729210311.425d0e9b@canb.auug.org.au> <20200729114757.GA19388@gondor.apana.org.au> <20200729122807.GA7047@gondor.apana.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200729122807.GA7047@gondor.apana.org.au> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 29, 2020 at 10:28:07PM +1000, Herbert Xu wrote: > This miniseries breaks a header loop involving qspinlock_types.h. > The issue is that qspinlock_types.h includes atomic.h, which then > eventually includes kernel.h which could lead back to the original > file via spinlock_types.h. How did you run into this, I haven't seen any build failures due to this. > The first patch moves ATOMIC_INIT into linux/types.h while the second > patch actuallys breaks the loop by no longer including atomic.h > in qspinlock_types.h. Anyway, the patches look sane enough, I'll go stick them in tip/locking/core or somesuch.