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=-0.7 required=3.0 tests=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 406F8C3A5A6 for ; Sun, 22 Sep 2019 22:17:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0F13020869 for ; Sun, 22 Sep 2019 22:17:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mDdKYe/K" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728519AbfIVWRf (ORCPT ); Sun, 22 Sep 2019 18:17:35 -0400 Received: from mail-io1-f51.google.com ([209.85.166.51]:39550 "EHLO mail-io1-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727485AbfIVWRe (ORCPT ); Sun, 22 Sep 2019 18:17:34 -0400 Received: by mail-io1-f51.google.com with SMTP id a1so28919628ioc.6 for ; Sun, 22 Sep 2019 15:17:34 -0700 (PDT) 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=dqobuf/BrOxXasMTwIqqq7pm/XDIEuujQtxgD/0IH0Y=; b=mDdKYe/K6r01mq7wWY7gpR/AdV/FAvCCoi/st/yOqa0vAAJ3+dGgdr6H9E3evIwqUD +4OLPi2tNmePOzPY+kpKnR+/WCv0euqbp8HnvnksX0TSn9X//ojOllbYWEzurdvbgIOe +kJ7nA6Bznu7idRywo0PNJXnHcrdJVq8Papb9Dmjf4gSzX/RzQVYtPECxyd+6U2aVmAI nzLjFfQ+ZlDHzrtbDhnSSGZIqwj57hbyjhOcdvHkWo6RrFpvTed0LjCTDd0Jl2ono75s 2CpBb4UJZKyW9lstbMfypcqxIkJzxgX4vMhO1UzV4FeBpUpNsLXBkmrEGDrkPvnNGhSt mvyQ== 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=dqobuf/BrOxXasMTwIqqq7pm/XDIEuujQtxgD/0IH0Y=; b=Gjq54IPibENHz2OPsCFd/T2vtIxPLmHa7fML/M3DphnWEtModB8PF5gZj64d/Mc9XF OIi1ezF9o6z9iZWyTcLpoQZ9ZaKhMoAXFhKyYNe240pQ//fZlj/flNzbs10DmR73EpnX Cnl5bSU3is4w5pqhqBv4o/MdRRuuVD7D2t7wbKL2ofx5G22lQV4oHkalFTZIRuRRmo1G f+aYqh8c7xRgiTWYWdXK9zvjv5E0UL0q/uZh15bV1qzSTv1GbUo7g+yNjeVbF3dpU00j LH9WoA1qIxqZJ5MCV2cKwWPm+0LDd901lCacsbgNr1DB6Hw9nxwiYeZhAc61YL5eACUZ FUYg== X-Gm-Message-State: APjAAAV9V7VFG71SKcCDX2mMKSScorVcCjedA1j+ltu0COGOO5eS1sKF b9TE5WL20ZM5iF89pxVjcL82UgJPeoSjutrn4nYI8FYk X-Google-Smtp-Source: APXvYqzf8lsZl42VwKFAzwFMLnvhOG3agalEKDiLFNKAjQPS+KF7wQgF9cKhQ5bNDL3zOWRD3mkHVE5FsEHahfFvI2g= X-Received: by 2002:a6b:4902:: with SMTP id u2mr7974033iob.301.1569190653997; Sun, 22 Sep 2019 15:17:33 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ac0:9c85:0:0:0:0:0 with HTTP; Sun, 22 Sep 2019 15:17:33 -0700 (PDT) In-Reply-To: <20190921044510.GA990793@kroah.com> References: <20190917120258.GB489142@kroah.com> <20190918054744.GA1830105@kroah.com> <20190921044510.GA990793@kroah.com> From: JH Date: Mon, 23 Sep 2019 08:17:33 +1000 Message-ID: Subject: Re: Failed to connect to 4G modem To: Greg KH Cc: linux-usb@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hi Greg, On 9/21/19, Greg KH wrote: > You should never have to update any userspace code or library if the > kernel is updated as we guarantee backwards compatibility. If we did > break something, please let us know and we will work very hard to fix > it. > > This is a guarantee we made back in 2007 or so, and have been sticking > to it since. > > There is no "major" upgrade issue here, the kernel does a new release > every 3 months and changes the number, showing it is "newer" than the > previous one. > > Hope this helps, That demystified the kernel version many people misinterpreted, so I can tell my colleagues we are ensured there would be no libraries changes upgrading 5.3 to 5.4 LTS. Thank you so much. Kind regards, - jupiter > greg k-h >