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[209.132.180.67]) by mx.google.com with ESMTP id z23-v6si1801989pll.4.2018.02.21.06.59.14; Wed, 21 Feb 2018 06:59:30 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=lRVtyfaX; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938073AbeBUO6T (ORCPT + 99 others); Wed, 21 Feb 2018 09:58:19 -0500 Received: from mail-qt0-f177.google.com ([209.85.216.177]:44801 "EHLO mail-qt0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932826AbeBUO6S (ORCPT ); Wed, 21 Feb 2018 09:58:18 -0500 Received: by mail-qt0-f177.google.com with SMTP id g60so2210883qtd.11 for ; Wed, 21 Feb 2018 06:58:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=e8ZwNmO9sBdjhvGtucnAZIZbgwwG6DgQmgoew2qAv84=; b=lRVtyfaXC79jg2nsC+NzPO2EOCWV77F65yv5j9suYREK6btpfLZulfIcRR7XUaLDHe iNsYqeuRdG5XH21IYSe2CKCqafg+i/+LM7faZajzpiOLN4uAUGqRju+fJX5IEsdjs4xB 2DqnRC/JLZuVg+eFTRV+CshkuToiMqv9nHclEw7uHFXk5oOOCBatuSMsXITpvms4nMTz 7oBQ4T2pXuyxu0+vGf/wDvGoYHDAfp9W5aijB4/e2Bptp7LNhyxfkDshv7alfclj5t26 dJ6BWKCChyon2Ee75FjEaE6N9mSkymGDmfPrjVa7Y1LinvJqZ/tVfZnK/zTcExa4rM7J WJVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=e8ZwNmO9sBdjhvGtucnAZIZbgwwG6DgQmgoew2qAv84=; b=SitMW6q/jK2+uINl4hLCydFdsEN4QNEWYH+T8BKf5C6i/LA2oDY24q3o2NFsB0lsGI uaNCh8iS7wLVpf0JxdhISOmB5sDSiFefAb61chxtuOmH8bLBBH3J4+M/Zc+mfhJgv7Jq acHsn8dFVMvsndLjq2oCswe8SRG+wcENJCKMAUS26Khshnl5qRpdc2HeUyP5tvDUuezH fPqX9rUyDcqhTkVarau54e7V06JVFpUBGX0Au5FYsrwwWL15qvTeNTfUm/nV5IV9Gk0L WN6P8g5NXpbUypovc51AOi2MVykV+DbgEqiaFtG1jOixbzqxzY55+Y662jwOAkEFI8Kx c93A== X-Gm-Message-State: APf1xPCxn5WIrhNd35scGkNN+4zFlyn9prR3a0dvkuLN4v+ZefueO5qg ZqSYo050EsS24Oakb3+zWEYjqWSsfPe7hfGCyEk= X-Received: by 10.200.18.3 with SMTP id x3mr5670478qti.40.1519225097443; Wed, 21 Feb 2018 06:58:17 -0800 (PST) MIME-Version: 1.0 Received: by 10.12.195.80 with HTTP; Wed, 21 Feb 2018 06:58:16 -0800 (PST) In-Reply-To: <20180220225425.40682-1-bbellevi@uci.edu> References: <20180220225425.40682-1-bbellevi@uci.edu> From: Andy Shevchenko Date: Wed, 21 Feb 2018 16:58:16 +0200 Message-ID: Subject: Re: [PATCH] floppy: Don't print kernel addresses to log in show_floppy To: Brian Belleville Cc: Jiri Kosina , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 21, 2018 at 12:54 AM, Brian Belleville wrote: > Outputting kernel addresses will reveal the locations of kernel code > and data. Change the cases in show_floppy that print > fd_timer.work.func and fd_timeout.work.func to use the %pf format > specifier, which will print the symbol name, like what is done for the > other function pointers printed by show_floppy. No longer output the > value of cont. The variable cont is a pointer that can hold the > address of kernel global variables. Perhaps you missed %px introduction and hashing pointers otherwise. OTOH I don't give a crap about floppy. -- With Best Regards, Andy Shevchenko