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Message-ID: <20201106100552.GA2063125@dell>
Date:   Fri, 6 Nov 2020 10:05:52 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, Jiri Slaby <jirislaby@...nel.org>,
        Mike Hudson <Exoray@...s.ca>, linux-serial@...r.kernel.org
Subject: Re: [PATCH 13/36] tty: serial: 8250: 8250_port: Staticify functions
 referenced by pointers

On Fri, 06 Nov 2020, Greg Kroah-Hartman wrote:

> On Wed, Nov 04, 2020 at 07:35:26PM +0000, Lee Jones wrote:
> > Fixes the following W=1 kernel build warning(s):
> > 
> >  drivers/tty/serial/8250/8250_port.c:349:14: warning: no previous prototype for ‘au_serial_in’ [-Wmissing-prototypes]
> >  drivers/tty/serial/8250/8250_port.c:359:6: warning: no previous prototype for ‘au_serial_out’ [-Wmissing-prototypes]
> > 
> > Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Cc: Jiri Slaby <jirislaby@...nel.org>
> > Cc: Mike Hudson <Exoray@...s.ca>
> > Cc: linux-serial@...r.kernel.org
> > Signed-off-by: Lee Jones <lee.jones@...aro.org>
> > ---
> >  drivers/tty/serial/8250/8250_port.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> And now I get build errors of:
> 	ld: drivers/tty/serial/8250/8250_early.o: in function `early_au_setup':
> 	8250_early.c:(.init.text+0x7): undefined reference to `au_serial_in'
> 	ld: 8250_early.c:(.init.text+0xf): undefined reference to `au_serial_out'
> 	make: *** [Makefile:1164: vmlinux] Error 1
> 
> Always test-build your patches, perhaps W=1 was wrong here...

I *always* test build my sets before posting.

/investigating

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