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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 588C8C77B78 for ; Tue, 2 May 2023 20:18:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229641AbjEBUS3 (ORCPT ); Tue, 2 May 2023 16:18:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229676AbjEBUS1 (ORCPT ); Tue, 2 May 2023 16:18:27 -0400 Received: from out-36.mta1.migadu.com (out-36.mta1.migadu.com [IPv6:2001:41d0:203:375::24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 603D5212A for ; Tue, 2 May 2023 13:18:17 -0700 (PDT) Date: Tue, 2 May 2023 16:18:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1683058694; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WhFW8Rae+PmqA9NsRu2fCLYsKzvllBF+D9enxFH2HZY=; b=hgtKk0MnzVAurVmwiCvBDIjIIIVHKWBblkqx4zQl8oTajKe75PQAIg3RUCa1kKrviBzNrJ GpiBkz7WRGs9kn6obwH3r112ivVqUTFRAFMnA9VjU9p6KvcxDCeLXwzxjYCGsLWrMrxgoJ DNMXVf2QpiAVCACDPy3H7fKlw3VRMxw= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Kent Overstreet To: Petr =?utf-8?B?VGVzYcWZw61r?= Cc: Suren Baghdasaryan , akpm@linux-foundation.org, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, roman.gushchin@linux.dev, mgorman@suse.de, dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com, corbet@lwn.net, void@manifault.com, peterz@infradead.org, juri.lelli@redhat.com, ldufour@linux.ibm.com, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com, david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org, masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org, tj@kernel.org, muchun.song@linux.dev, rppt@kernel.org, paulmck@kernel.org, pasha.tatashin@soleen.com, yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com, hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org, ndesaulniers@google.com, gregkh@linuxfoundation.org, ebiggers@google.com, ytcoode@gmail.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, bristot@redhat.com, vschneid@redhat.com, cl@linux.com, penberg@kernel.org, iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com, elver@google.com, dvyukov@google.com, shakeelb@google.com, songmuchun@bytedance.com, jbaron@akamai.com, rientjes@google.com, minchan@google.com, kaleshsingh@google.com, kernel-team@android.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, kasan-dev@googlegroups.com, cgroups@vger.kernel.org Subject: Re: [PATCH 19/40] change alloc_pages name in dma_map_ops to avoid name conflicts Message-ID: References: <20230501165450.15352-1-surenb@google.com> <20230501165450.15352-20-surenb@google.com> <20230502175052.43814202@meshulam.tesarici.cz> <20230502220909.3f55ae41@meshulam.tesarici.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20230502220909.3f55ae41@meshulam.tesarici.cz> X-Migadu-Flow: FLOW_OUT Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Tue, May 02, 2023 at 10:09:09PM +0200, Petr Tesařík wrote: > Ah, right, I admit I did not quite understand why this change is > needed. However, this is exactly what I don't like about preprocessor > macros. Each macro effectively adds a new keyword to the language. > > I believe everything can be solved with inline functions. What exactly > does not work if you rename alloc_pages() to e.g. alloc_pages_caller() > and then add an alloc_pages() inline function which calls > alloc_pages_caller() with _RET_IP_ as a parameter? Perhaps you should spend a little more time reading the patchset and learning how the code works before commenting.