From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754116AbcIBWpi (ORCPT ); Fri, 2 Sep 2016 18:45:38 -0400 Received: from quartz.orcorp.ca ([184.70.90.242]:56500 "EHLO quartz.orcorp.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753246AbcIBWph (ORCPT ); Fri, 2 Sep 2016 18:45:37 -0400 Date: Fri, 2 Sep 2016 16:45:31 -0600 From: Jason Gunthorpe To: Jarkko Sakkinen Cc: Peter Huewe , Marcel Selhorst , "moderated list:TPM DEVICE DRIVER" , open list Subject: Re: [PATCH] tpm: move struct tpm_class_ops to drivers/char/tpm/tpm.h Message-ID: <20160902224531.GC1897@obsidianresearch.com> References: <1472852886-7640-1-git-send-email-jarkko.sakkinen@linux.intel.com> <20160902221122.GA1897@obsidianresearch.com> <20160902223522.GA27454@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160902223522.GA27454@intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Broken-Reverse-DNS: no host name found for IP address 10.0.0.151 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Sep 03, 2016 at 01:35:22AM +0300, Jarkko Sakkinen wrote: > On Fri, Sep 02, 2016 at 04:11:22PM -0600, Jason Gunthorpe wrote: > > On Sat, Sep 03, 2016 at 12:48:03AM +0300, Jarkko Sakkinen wrote: > > > The struct tpm_class_ops is not used outside the TPM driver. Thus, > > > it can be safely move to drivers/char/tpm/tpm.h. > > > > No, this is the wrong direction. > > > > The goal is to make things more like other subsystems, so we should be > > moving struct tpm_chip into the public header, and that requires ops > > to be in the public header. > > > > This is why I put ops here in the first place. > > I'm OK with it as long as you explain why this is necessary. I see no > use for them outside the TPM subsystem. That is because the users out side the subsystem are Doing it Wrong. eg this: extern int tpm_is_tpm2(u32 chip_num); Should be: extern int tpm_is_tpm2(struct tpm_chip *chip); And same for all other examples. The 'chip_num' thing is bonkers. Jason