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=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 0B0A5C433DB for ; Tue, 2 Feb 2021 10:10:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE86764F55 for ; Tue, 2 Feb 2021 10:10:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229870AbhBBKKQ (ORCPT ); Tue, 2 Feb 2021 05:10:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56426 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229883AbhBBKKF (ORCPT ); Tue, 2 Feb 2021 05:10:05 -0500 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA393C0613D6; Tue, 2 Feb 2021 02:09:25 -0800 (PST) Received: by mail-pl1-x62b.google.com with SMTP id b8so12181506plh.12; Tue, 02 Feb 2021 02:09:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=FYeJLFgukpjjaiX0ohZ3jkdwwwc8rHopLauzuSIyIdw=; b=tV+v78ppPBh5j1qozvGytXqYRH3YTJdedkA+I8BKPM/+ZtmYvrTzBWbeVfXbArKUSM iN4DyO4rLEKMayZ/QM19bmkFz6e2qX/7WaBp+PIDYEig7nWtknkexxzua6XvFhgpHqne lMEJZfTOQk7alc33ttk1hifGy5+zTtIrFKaHTSf6mg9Tfz5AO0tqYi4erZkvNM02mM7F 34qhUEHyyimt6uvazTjZyHv98SSh3Jyu5L4GyjX35aHc1AQuPb7R2MgE/5cvZaUS1c2/ oW/pTvabA1T2TAr4fqG1xQ9yyF5eenOs5p6igNbRJQAuRb/uXxQJoOvzreh2AVCzW5ld 4Zkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=FYeJLFgukpjjaiX0ohZ3jkdwwwc8rHopLauzuSIyIdw=; b=bOIzmPHvRpzgmS1MmP9MuyPEs2lHHMSPd5xHbplR/n2Nkuoow4i8P7LrCQQXSCeBS1 QvNEFeKzRbFhC6uC12aL5DJtv1XUUVGpZ3pvo/aD+YB1GW3KheCp70vakvw2UOeHTMI8 m8zvpgXyhpfjg2go7ZtNRWUnja84KPvwMWfX/ntL59ar6A4MAFRRmifjg1194UOWYQmZ TO48u5iO/2tHoiwEbDQXds+4SPq4RhWUov2Rj9DXUTOGwebtl3a2Xj91Do65PGYJXQRA LoThXRCR0PF8rrB4Aqhe2LXlpB/duLiDGceGSBlArcWt9GyXEKNwjokHvvnIeobRMGPY mYaA== X-Gm-Message-State: AOAM530B6XEA5phDOS5fsxDvc4l8ytxSDmE/WxwxWGcs/xP4Q7NFpd1R RdRQ8vWY/zKTKkDk7GCE5dqcHAMlQE5jlw== X-Google-Smtp-Source: ABdhPJzOiwWh5mPPYa1i19XPG4Fp5MvPpEcfOWz0ooMRC2HOki3phGTorM9UmMcRGoRVm4K5OTM51w== X-Received: by 2002:a17:90a:d02:: with SMTP id t2mr3397288pja.130.1612260565335; Tue, 02 Feb 2021 02:09:25 -0800 (PST) Received: from localhost ([2409:10:2e40:5100:6e29:95ff:fe2d:8f34]) by smtp.gmail.com with ESMTPSA id l2sm21403893pga.65.2021.02.02.02.09.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Feb 2021 02:09:24 -0800 (PST) Date: Tue, 2 Feb 2021 19:09:21 +0900 From: Sergey Senozhatsky To: Masahiro Yamada Cc: linux-kernel@vger.kernel.org, Petr Mladek , Sergey Senozhatsky , Steven Rostedt , John Ogness , Andy Shevchenko , Ard Biesheuvel , Borislav Petkov , Darren Hart , Dimitri Sivanich , Greg Kroah-Hartman , "H. Peter Anvin" , Ingo Molnar , Jiri Slaby , Mike Travis , Peter Jones , Russ Anderson , Steve Wahl , Thomas Gleixner , dri-devel@lists.freedesktop.org, linux-efi@vger.kernel.org, linux-fbdev@vger.kernel.org, platform-driver-x86@vger.kernel.org, x86@kernel.org Subject: Re: [PATCH 1/3] printk: use CONFIG_CONSOLE_LOGLEVEL_* directly Message-ID: References: <20210202070218.856847-1-masahiroy@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210202070218.856847-1-masahiroy@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org On (21/02/02 16:02), Masahiro Yamada wrote: > > CONSOLE_LOGLEVEL_DEFAULT is nothing more than a shorthand of > CONFIG_CONSOLE_LOGLEVEL_DEFAULT. > > When you change CONFIG_CONSOLE_LOGLEVEL_DEFAULT from Kconfig, almost > all objects are rebuilt because CONFIG_CONSOLE_LOGLEVEL_DEFAULT is > used in , which is included from most of source files. > > In fact, there are only 4 users of CONSOLE_LOGLEVEL_DEFAULT: > > arch/x86/platform/uv/uv_nmi.c > drivers/firmware/efi/libstub/efi-stub-helper.c > drivers/tty/sysrq.c > kernel/printk/printk.c > > So, when you change CONFIG_CONSOLE_LOGLEVEL_DEFAULT and rebuild the > kernel, it is enough to recompile those 4 files. Do you change CONFIG_CONSOLE_LOGLEVEL_DEFAULT so often that it becomes a problem? -ss