From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E5ACA7; Thu, 14 Dec 2023 09:39:48 -0800 (PST) Received: from francesco-nb.int.toradex.com (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id BD29721454; Thu, 14 Dec 2023 18:39:45 +0100 (CET) Date: Thu, 14 Dec 2023 18:39:44 +0100 From: Francesco Dolcini To: Greg Kroah-Hartman , Jiri Slaby Cc: Francesco Dolcini , linux-bluetooth@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, greybus-dev@lists.linaro.org, linux-iio@vger.kernel.org, netdev@vger.kernel.org, chrome-platform@lists.linux.dev, platform-driver-x86@vger.kernel.org, linux-serial@vger.kernel.org, linux-sound@vger.kernel.org, Francesco Dolcini , Luiz Augusto von Dentz , Johan Hovold , Alex Elder , Jonathan Cameron , Lee Jones , Jakub Kicinski , Paolo Abeni , Eric Dumazet , "David S. Miller" , Krzysztof Kozlowski , Hans de Goede , Ilpo =?iso-8859-1?Q?J=E4rvinen?= , Benson Leung , Tzung-Bi Shih , Rob Herring Subject: Re: [PATCH v1] treewide, serdev: change receive_buf() return type to size_t Message-ID: References: <20231214170146.641783-1-francesco@dolcini.it> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231214170146.641783-1-francesco@dolcini.it> On Thu, Dec 14, 2023 at 06:01:46PM +0100, Francesco Dolcini wrote: > From: Francesco Dolcini > > 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 > Link: https://lore.kernel.org/all/087be419-ec6b-47ad-851a-5e1e3ea5cfcc@kernel.org/ > Signed-off-by: Francesco Dolcini > --- > hello, > patch is based on current linux next. > > It has an obvious problem, it touches files from multiple subsystem in a single > patch that is complicated to review and eventually merge, just splitting this > would however not work, it will break bisectability and the build. > > I am looking for advise on the best way to move forward. > > I see the following options: > - keep it as it is > - break it down with a patch with each subsystem, and squash before applying > from a single (tty?) subsystem > - go for a multi stage approach, defining a new callback, move to it and in > the end remove the original one, likewise it was done for i2c lately whoops. I just noticed Greg applied commit 475fc6e2de6f ("tty: serdev: convert to u8 and size_t") that touch the exact same files without much of an issue. Probably the "keep it as it is" is just the way to go. > > --- > drivers/bluetooth/btmtkuart.c | 4 ++-- > drivers/bluetooth/btnxpuart.c | 4 ++-- > drivers/bluetooth/hci_serdev.c | 4 ++-- > drivers/gnss/core.c | 6 +++--- > drivers/gnss/serial.c | 4 ++-- > drivers/gnss/sirf.c | 6 +++--- > drivers/greybus/gb-beagleplay.c | 6 +++--- > drivers/iio/chemical/pms7003.c | 4 ++-- > drivers/iio/chemical/scd30_serial.c | 4 ++-- > drivers/iio/chemical/sps30_serial.c | 4 ++-- > drivers/iio/imu/bno055/bno055_ser_core.c | 4 ++-- > drivers/mfd/rave-sp.c | 4 ++-- > drivers/net/ethernet/qualcomm/qca_uart.c | 2 +- > drivers/nfc/pn533/uart.c | 4 ++-- > drivers/nfc/s3fwrn5/uart.c | 4 ++-- > drivers/platform/chrome/cros_ec_uart.c | 4 ++-- > drivers/platform/surface/aggregator/core.c | 4 ++-- > drivers/tty/serdev/serdev-ttyport.c | 10 ++++------ > include/linux/gnss.h | 4 ++-- > include/linux/serdev.h | 8 ++++---- > sound/drivers/serial-generic.c | 4 ++-- > 21 files changed, 48 insertions(+), 50 deletions(-)