netdev - Re: [PATCH 08/10] of: of_net: Demote non-conforming kernel-doc header

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Date:   Fri, 12 Mar 2021 15:18:09 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     linux-kernel@...r.kernel.org,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 08/10] of: of_net: Demote non-conforming kernel-doc header

On Fri, 12 Mar 2021, Andrew Lunn wrote:

> On Fri, Mar 12, 2021 at 11:07:56AM +0000, Lee Jones wrote:
> > Fixes the following W=1 kernel build warning(s):
> > 
> >  drivers/of/of_net.c:104: warning: Function parameter or member 'np' not described in 'of_get_mac_address'
> >  drivers/of/of_net.c:104: warning: expecting prototype for mac(). Prototype was for of_get_mac_address() instead
> > 
> > Cc: Andrew Lunn <andrew@...n.ch>
> > Cc: Heiner Kallweit <hkallweit1@...il.com>
> > Cc: Russell King <linux@...linux.org.uk>
> > Cc: Rob Herring <robh+dt@...nel.org>
> > Cc: Frank Rowand <frowand.list@...il.com>
> > Cc: netdev@...r.kernel.org
> > Cc: devicetree@...r.kernel.org
> > Signed-off-by: Lee Jones <lee.jones@...aro.org>
> > ---
> >  drivers/of/of_net.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c
> > index 6e411821583e4..9b41a343e88ab 100644
> > --- a/drivers/of/of_net.c
> > +++ b/drivers/of/of_net.c
> > @@ -78,7 +78,7 @@ static const void *of_get_mac_addr_nvmem(struct device_node *np)
> >  	return mac;
> >  }
> >  
> > -/**
> > +/*
> >   * Search the device tree for the best MAC address to use.  'mac-address' is
> >   * checked first, because that is supposed to contain to "most recent" MAC
> >   * address. If that isn't set, then 'local-mac-address' is checked next,
> 
> Hi Lee
> 
> of_get_mac_address() is a pretty important API function. So it would
> be better to add the missing header to make this valid kdoc.

Pretty important, yes.  Referenced/documented, no. :)

  `git grep kernel-doc:: | grep drivers/of`

> /**
>  * of_get_mac_address - Get MAC address from device tree
>  * @np: Pointer to the device_node of the interface
>  *
> 
>  Andrew

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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