linux-kernel - Re: [PATCH v3 4/6] mm: don't export memory_add_physaddr_to

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Message-ID: <20200709091815.GF781326@linux.ibm.com>
Date:   Thu, 9 Jul 2020 12:18:15 +0300
From:   Mike Rapoport <rppt@...ux.ibm.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Jia He <justin.he@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        David Hildenbrand <david@...hat.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Baoquan He <bhe@...hat.com>,
        Chuhong Yuan <hslester96@...il.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Hocko <mhocko@...e.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-ia64@...r.kernel.org, linux-sh@...r.kernel.org,
        linux-nvdimm@...ts.01.org, linux-mm@...ck.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Kaly Xin <Kaly.Xin@....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 03:11:04AM +0100, Matthew Wilcox wrote:
> 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.

Moreover, I think that patches 1-4 can be merged into one.

-- 
Sincerely yours,
Mike.