linux-kernel - Re: linux-next: build warning for a long time

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Message-ID: <ade1016b-cbd2-45a2-a4ea-aef96d21288e@gmail.com>
Date: Fri, 11 Oct 2024 15:38:57 +0900
From: Akira Yokosawa <akiyks@...il.com>
To: greg@...ah.com
Cc: corbet@....net, linux-kernel@...r.kernel.org, linux-next@...r.kernel.org,
 sfr@...b.auug.org.au
Subject: Re: linux-next: build warning for a long time

> On Fri, Oct 11, 2024 at 05:24:42PM +1100, Stephen Rothwell wrote:
>> Hi all,
>> 
>> From before the git era, an htmldocs build (if we had such a thing back
>> then) would complain like this:
>> 
>> Documentation/driver-api/usb/usb:164: drivers/usb/core/message.c:968: WARNING: Duplicate C declaration, also defined at driver-api/usb/gadget:804.
>> Declaration is '.. c:function:: int usb_string (struct usb_device *dev, int index, char *buf, size_t size)'.
>> 
>> I assume it is confused because we have documented both a function and a
>> data type called "usb_string".  The former in drivers/usb/core/message.c
>> and the latter in include/linux/usb/gadget.h.
>> 
>> There are about 46 references to the function and 105 to the struct.
>> We could rename the function to usb_string_utf8 ...
> 
> But usb strings are not in utf8 format :)
> 
> As C can handle this just fine, odds are sphinx should also be able to
> handle this?
> 
> thanks,
> 
> greg k-h