From mboxrd@z Thu Jan  1 00:00:00 1970
From: Justin He <Justin.He@arm.com>
Date: Thu, 09 Jul 2020 02:16:47 +0000
Subject: RE: [PATCH v3 4/6] mm: don't export memory_add_physaddr_to_nid in arch specific directory
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To: Matthew Wilcox <willy@infradead.org>
Cc: Rich Felker <dalias@libc.org>, "linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>, David Hildenbrand <david@redhat.com>, Peter Zijlstra <peterz@infradead.org>, Catalin Marinas <Catalin.Marinas@arm.com>, Dave Hansen <dave.hansen@linux.intel.com>, "linux-mm@kvack.org" <linux-mm@kvack.org>, Michal Hocko <mhocko@suse.com>, "H. Peter Anvin" <hpa@zytor.com>, Will Deacon <will@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Dave Jiang <dave.jiang@intel.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, "linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>, "linux-sh@vger.kernel.org" <linux-sh@vger.kernel.org>, Vishal Verma <vishal.l.verma@intel.com>, Masahiro Yamada <masahiroy@kernel.org>, "x86@kernel.org" <x86@kernel.org>, Mike Rapoport <rppt@linux.ibm.com>, Kaly Xin <Kaly.Xin@arm.com>, Ingo Molnar <mingo@redhat.com>, Fenghua Yu <fenghua.yu@intel.com>, Chuhong Yuan <hslester96@gmail.com>, Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>, Jonathan Cameron <Jonathan.Cameron@huawei.com>, Dan Williams <dan.j.williams@intel.com>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, Tony Luck <tony.luck@intel.com>, Baoquan He <bhe@redhat.com>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Andrew Morton <akpm@linux-foundation.org>, Logan Gunthorpe <logang@deltatee.com>

Hi Matthew

> -----Original Message-----
> From: Matthew Wilcox <willy@infradead.org>
> Sent: Thursday, July 9, 2020 10:11 AM
> To: Justin He <Justin.He@arm.com>
> Cc: Catalin Marinas <Catalin.Marinas@arm.com>; Will Deacon
> <will@kernel.org>; Tony Luck <tony.luck@intel.com>; Fenghua Yu
> <fenghua.yu@intel.com>; Yoshinori Sato <ysato@users.sourceforge.jp>; Rich
> Felker <dalias@libc.org>; Dave Hansen <dave.hansen@linux.intel.com>; Andy
> Lutomirski <luto@kernel.org>; Peter Zijlstra <peterz@infradead.org>;
> Thomas Gleixner <tglx@linutronix.de>; Ingo Molnar <mingo@redhat.com>;
> Borislav Petkov <bp@alien8.de>; David Hildenbrand <david@redhat.com>;
> x86@kernel.org; H. Peter Anvin <hpa@zytor.com>; Dan Williams
> <dan.j.williams@intel.com>; Vishal Verma <vishal.l.verma@intel.com>; Dave
> Jiang <dave.jiang@intel.com>; Andrew Morton <akpm@linux-foundation.org>;
> Baoquan He <bhe@redhat.com>; Chuhong Yuan <hslester96@gmail.com>; Mike
> Rapoport <rppt@linux.ibm.com>; Logan Gunthorpe <logang@deltatee.com>;
> Masahiro Yamada <masahiroy@kernel.org>; Michal Hocko <mhocko@suse.com>;
> linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org; linux-
> ia64@vger.kernel.org; linux-sh@vger.kernel.org; linux-nvdimm@lists.01.org;
> linux-mm@kvack.org; Jonathan Cameron <Jonathan.Cameron@huawei.com>; Kaly
> Xin <Kaly.Xin@arm.com>
> Subject: Re: [PATCH v3 4/6] mm: don't export memory_add_physaddr_to_nid in
> arch specific directory
> 
> On Thu, Jul 09, 2020 at 10:06:27AM +0800, Jia He wrote:
> > After a general version of __weak memory_add_physaddr_to_nid implemented
> > and exported , it is no use exporting twice in arch directory even if
> > e,g, ia64/x86 have their specific version.
> >
> > This is to suppress the modpost warning:
> > WARNING: modpost: vmlinux: 'memory_add_physaddr_to_nid' exported twice.
> > Previous export was in vmlinux
> 
> It's bad form to introduce a warning and then send a follow-up patch to
> fix the warning.  Just fold this patch into patch 1/6.
Thanks, will do

Cheers,
Justin He