Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751260AbaJTQPk (ORCPT ); Mon, 20 Oct 2014 12:15:40 -0400 Received: from mail-qa0-f46.google.com ([209.85.216.46]:47788 "EHLO mail-qa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750798AbaJTQPi (ORCPT ); Mon, 20 Oct 2014 12:15:38 -0400 MIME-Version: 1.0 In-Reply-To: <20141017014128.GA4513@psi-dev26.jf.intel.com> References: <20141015165957.4063.66741.stgit@bhelgaas-glaptop2.roam.corp.google.com> <20141015170554.4063.62975.stgit@bhelgaas-glaptop2.roam.corp.google.com> <544065E3.4060909@linux.intel.com> <20141017014128.GA4513@psi-dev26.jf.intel.com> From: Bjorn Helgaas Date: Mon, 20 Oct 2014 10:15:17 -0600 Message-ID: Subject: Re: [PATCH v1 02/10] x86, intel-mid: Remove "weak" from function declarations To: David Cohen Cc: sathyanarayanan kuppuswamy , Jason Wessel , Ralf Baechle , Ingo Molnar , John Stultz , Eric Paris , "H. Peter Anvin" , Thomas Gleixner , Andrew Morton , "linux-kernel@vger.kernel.org" , "x86@kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 16, 2014 at 7:41 PM, David Cohen wrote: > Hi Bjorn and Sathya, > > On Thu, Oct 16, 2014 at 05:42:11PM -0700, sathyanarayanan kuppuswamy wrote: >> Hi Bjorn, >> >> On 10/15/2014 04:26 PM, Bjorn Helgaas wrote: >> >[+cc David, Kuppuswamy, x86; sorry, I botched my "stg mail" so you >> >weren't included the first time] >> > >> >On Wed, Oct 15, 2014 at 11:05 AM, Bjorn Helgaas wrote: >> >>For the following interfaces: >> >> >> >> get_penwell_ops() >> >> get_cloverview_ops() >> >> get_tangier_ops() >> >> >> >>there is only one implementation, so they do not need to be marked "weak". >> >> >> >>Remove the "weak" attribute from their declarations. >> >> >> >>Signed-off-by: Bjorn Helgaas >> >>CC: David Cohen >> >>CC: Kuppuswamy Sathyanarayanan >> >>CC: x86@kernel.org >> >>--- >> >> arch/x86/platform/intel-mid/intel_mid_weak_decls.h | 7 +++---- >> >> 1 file changed, 3 insertions(+), 4 deletions(-) >> >> >> >>diff --git a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h >> >>index 46aa25c8ce06..3c1c3866d82b 100644 >> >>--- a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h >> Please remove this file and move the contents to asm/intel-mid.h. I don't know or care enough about intel-mid to do this myself. Right now, I'm just trying to remove unnecessary and incorrect usage of "weak" in header files. > I partially agree :) > > Historically, this file was created because we could not build all intel > mid variants at once. So we have to select only one during compilation > time, which was fixed already. > > But we don't need to expose those functions outside intel-mid's > directory, which means asm/intel-mid.h isn't the best option IMHO. > > If you want, I can send a small re-work instead: we get rid of this > header file completely and simplify a bit what is exposed by > asm/intel-mid.h. Or you can keep this patch and then I send the re-work > on top of it. Anyway I'm fine. It's fine with me if you want to rework this to remove the header completely. When I pointed this out in January [1], you mentioned plans for that. But I think we should merge this patch in the interim to remove the use of "weak" in a header file. If we leave bad examples in the tree, they just proliferate. [1] http://lkml.kernel.org/r/20140128013013.GA31626@psi-dev26.jf.intel.com >> >>+++ b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h >> >>@@ -10,10 +10,9 @@ >> >> */ >> >> >> >> >> >>-/* __attribute__((weak)) makes these declarations overridable */ >> >> /* For every CPU addition a new get__ops interface needs >> >> * to be added. >> >> */ >> >>-extern void *get_penwell_ops(void) __attribute__((weak)); >> >>-extern void *get_cloverview_ops(void) __attribute__((weak)); >> >>-extern void *get_tangier_ops(void) __attribute__((weak)); >> >>+extern void *get_penwell_ops(void); >> >>+extern void *get_cloverview_ops(void); >> >>+extern void *get_tangier_ops(void); >> >> >> >> -- >> Sathyanarayanan Kuppuswamy >> Android kernel developer >> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/