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Date:   Wed, 26 Feb 2020 16:14:47 +0800
From:   Baoquan He <bhe@redhat.com>
To:     Alastair D'Silva <alastair@au1.ibm.com>
Cc:     alastair@d-silva.org,
        "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
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        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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        Dave Jiang <dave.jiang@intel.com>,
        Ira Weiny <ira.weiny@intel.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
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Subject: Re: [PATCH v3 04/27] ocxl: Remove unnecessary externs
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 <20200221032720.33893-5-alastair@au1.ibm.com>
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On 02/21/20 at 02:26pm, Alastair D'Silva wrote:
> From: Alastair D'Silva <alastair@d-silva.org>
> 
> Function declarations don't need externs, remove the existing ones
> so they are consistent with newer code
> 
> Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
> ---
>  arch/powerpc/include/asm/pnv-ocxl.h | 32 ++++++++++++++---------------
>  include/misc/ocxl.h                 |  6 +++---
>  2 files changed, 18 insertions(+), 20 deletions(-)
> 
> diff --git a/arch/powerpc/include/asm/pnv-ocxl.h b/arch/powerpc/include/asm/pnv-ocxl.h
> index 0b2a6707e555..b23c99bc0c84 100644
> --- a/arch/powerpc/include/asm/pnv-ocxl.h
> +++ b/arch/powerpc/include/asm/pnv-ocxl.h
> @@ -9,29 +9,27 @@
>  #define PNV_OCXL_TL_BITS_PER_RATE       4
>  #define PNV_OCXL_TL_RATE_BUF_SIZE       ((PNV_OCXL_TL_MAX_TEMPLATE+1) * PNV_OCXL_TL_BITS_PER_RATE / 8)
>  
> -extern int pnv_ocxl_get_actag(struct pci_dev *dev, u16 *base, u16 *enabled,
> -			u16 *supported);

It works w or w/o extern when declare functions. Searching 'extern'
under include can find so many functions with 'extern' adding. Do we
have a explicit standard if we should add or remove 'exter' in function
declaration?

I have no objection to this patch, just want to make clear so that I can
handle it w/o confusion.

Thanks
Baoquan