netdev - Re: [PATCH v1] treewide, serdev: change receive_buf() return type to size

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Date: Fri, 15 Dec 2023 15:11:53 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Johan Hovold <johan@...nel.org>
Cc: Francesco Dolcini <francesco@...cini.it>,
	Jiri Slaby <jirislaby@...nel.org>, linux-bluetooth@...r.kernel.org,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, greybus-dev@...ts.linaro.org,
	linux-iio@...r.kernel.org, netdev@...r.kernel.org,
	chrome-platform@...ts.linux.dev,
	platform-driver-x86@...r.kernel.org, linux-serial@...r.kernel.org,
	linux-sound@...r.kernel.org,
	Francesco Dolcini <francesco.dolcini@...adex.com>,
	Luiz Augusto von Dentz <luiz.dentz@...il.com>,
	Alex Elder <elder@...nel.org>, Jonathan Cameron <jic23@...nel.org>,
	Lee Jones <lee@...nel.org>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>,
	"David S. Miller" <davem@...emloft.net>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Benson Leung <bleung@...omium.org>,
	Tzung-Bi Shih <tzungbi@...nel.org>, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v1] treewide, serdev: change receive_buf() return type to
 size_t

On Fri, Dec 15, 2023 at 02:36:31PM +0100, Johan Hovold wrote:
> On Thu, Dec 14, 2023 at 06:01:46PM +0100, Francesco Dolcini wrote:
> > From: Francesco Dolcini <francesco.dolcini@...adex.com>
> > 
> > receive_buf() is called from ttyport_receive_buf() that expects values
> > ">= 0" from serdev_controller_receive_buf(), change its return type from
> > ssize_t to size_t.
> > 
> > Suggested-by: Jiri Slaby <jirislaby@...nel.org>
> > Link: https://lore.kernel.org/all/087be419-ec6b-47ad-851a-5e1e3ea5cfcc@kernel.org/
> > Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>
> > ---
> >  drivers/gnss/core.c                        |  6 +++---
> >  drivers/gnss/serial.c                      |  4 ++--
> >  drivers/gnss/sirf.c                        |  6 +++---
> 
> > diff --git a/drivers/gnss/core.c b/drivers/gnss/core.c
> > index 48f2ee0f78c4..9b8a0605ec76 100644
> > --- a/drivers/gnss/core.c
> > +++ b/drivers/gnss/core.c
> > @@ -317,10 +317,10 @@ EXPORT_SYMBOL_GPL(gnss_deregister_device);
> >   *
> >   * Must not be called for a closed device.
> >   */
> > -int gnss_insert_raw(struct gnss_device *gdev, const unsigned char *buf,
> > -				size_t count)
> > +size_t gnss_insert_raw(struct gnss_device *gdev, const unsigned char *buf,
> > +		       size_t count)
> >  {
> > -	int ret;
> > +	size_t ret;
> >  
> >  	ret = kfifo_in(&gdev->read_fifo, buf, count);
> >  
> 
> Why are you changing this function? This is part of the GNSS interface
> and has nothing to do with the rest of this patch.
> 
> Greg, please drop this one again until this has been resolved.

Now dropped, thanks.