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 51BEAC761A6 for ; Mon, 3 Apr 2023 12:18:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231921AbjDCMS4 (ORCPT ); Mon, 3 Apr 2023 08:18:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42554 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232181AbjDCMSe (ORCPT ); Mon, 3 Apr 2023 08:18:34 -0400 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E31CFF08 for ; Mon, 3 Apr 2023 05:18:27 -0700 (PDT) Received: by mail-pl1-x634.google.com with SMTP id kc4so27779446plb.10 for ; Mon, 03 Apr 2023 05:18:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1680524306; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=5eMxTwy2i6Q3rtASj4xrv1k39KS5W1FVy01mpjmZ1Is=; b=WX1M7g6/BTxny5qTEMUbWYRMzbimPbMl1eOieYl3291YLTA4VgICQnmjwl9DDsgGR9 xVU+BhIubA+7DHXgh+APrB+YQz4OtA+SA/gJ8eJUsqAJOwVyQ/IP27YCXU17G2Cm4I1Q R0OT/pKXp1lUolNKD6+QARkejgJ/8AAoYqMIA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680524306; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=5eMxTwy2i6Q3rtASj4xrv1k39KS5W1FVy01mpjmZ1Is=; b=5Vzbk4XzLdDPUkXHihgVH7eGen33Qjx9xjNlh0rfVJD0r2WVycq7ZF27TtdWx39CzU dALvTEfBjXDOf3wdGUFLl49ENhFM2QEfcVZu80mAlREe7fQk8qpD5w4InFqrqm8fScdL ennygLEdwlfkW2Cb7/sWmwbpXBsd0Rnvyaqc/lDLagI9jyz1fPePDbo0vd3l43avFEOr 1QfA7YsUYZZBiK9z21Mtlr8yGf5rOVyYIk0VZ0ytiw+UPhCH7S0lTijn5edgItzC82hy h0QGpG//+Dan5Go4ZZrqc2pCzRI4ouyaXCAfv188bZGkYqk4MFagP1Aj6XnBSyK7zxxK 7M+g== X-Gm-Message-State: AAQBX9eO5PfoDGpiLt9721OqpIsddFJ3zM581AexgTr7++HfuAbsdFcl kuCfdVljXhVyjaXakZWyUxkmVg== X-Google-Smtp-Source: AKy350bFkIXxJH3enT/RpgPVaPMOTQYUJJANjUsucqJt9bphHMK2LLE7VG7x+ri6PKjD8draHIYe1g== X-Received: by 2002:a17:903:280b:b0:19c:65bd:d44b with SMTP id kp11-20020a170903280b00b0019c65bdd44bmr28304892plb.60.1680524306240; Mon, 03 Apr 2023 05:18:26 -0700 (PDT) Received: from google.com (KD124209188001.ppp-bb.dion.ne.jp. [124.209.188.1]) by smtp.gmail.com with ESMTPSA id jl12-20020a170903134c00b0019edb3ae415sm6509017plb.14.2023.04.03.05.18.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Apr 2023 05:18:25 -0700 (PDT) Date: Mon, 3 Apr 2023 21:18:20 +0900 From: Sergey Senozhatsky To: Jaewon Kim Cc: "pmladek@suse.com" , "senozhatsky@chromium.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "jaewon31.kim@gmail.com" , GyeongHwan Hong Subject: Re: [RFC] vsprintf: compile error on %09pK Message-ID: <20230403121820.GD12892@google.com> References: <20230403104617epcms1p383bacbca705c0d7e4fffca6833050e42@epcms1p3> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230403104617epcms1p383bacbca705c0d7e4fffca6833050e42@epcms1p3> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (23/04/03 19:46), Jaewon Kim wrote: > I've just changed %09lx to %09pK on my driver code to hide the address, but I > faced compiler error. The %9pK without 0 worked. > > Is there restriction on %pK which does now allow %0 ? I've wondered whether I > did wrong or it is a printk problem. I don't think this is %pK limitation. %p should not take modification flags. E.g. %3p doesn't make sense, we still should print the entire pointer.