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linux/drivers/nfc
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Francesco Dolcini fed99212ac treewide, serdev: change receive_buf() return type to size_t 
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.

The need for this clean-up was noticed while fixing a warning, see
commit 94d0539425 ("Bluetooth: btnxpuart: fix recv_buf() return value").
Changing the callback prototype to return an unsigned seems the best way
to document the API and ensure that is properly used.

GNSS drivers implementation of serdev receive_buf() callback return
directly the return value of gnss_insert_raw(). gnss_insert_raw()
returns a signed int, however this is not an issue since the value
returned is always positive, because of the kfifo_in() implementation.
gnss_insert_raw() could be changed to return also an unsigned, however
this is not implemented here as request by the GNSS maintainer Johan
Hovold.

Suggested-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/all/087be419-ec6b-47ad-851a-5e1e3ea5cfcc@kernel.org/
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for-iio
Reviewed-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Acked-by: Maximilian Luz <luzmaximilian@gmail.com>  # for platform/surface
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240122180551.34429-1-francesco@dolcini.it
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-01-27 18:13:53 -08:00
..
fdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-22 18:40:38 -07:00
microread nfc: Switch i2c drivers back to use .probe() 2023-05-22 11:41:57 +01:00
nfcmrvl nfc: Switch i2c drivers back to use .probe() 2023-05-22 11:41:57 +01:00
nxp-nci NFC: nxp: add NXP1002 2023-08-30 18:32:24 -07:00
pn533 treewide, serdev: change receive_buf() return type to size_t 2024-01-27 18:13:53 -08:00
pn544 nfc: Switch i2c drivers back to use .probe() 2023-05-22 11:41:57 +01:00
s3fwrn5 treewide, serdev: change receive_buf() return type to size_t 2024-01-27 18:13:53 -08:00
st-nci nfc: Switch i2c drivers back to use .probe() 2023-05-22 11:41:57 +01:00
st21nfca nfc: Switch i2c drivers back to use .probe() 2023-05-22 11:41:57 +01:00
st95hf spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
Kconfig
Makefile
mei_phy.c nfc: mei_phy: constify buffer passed to mei_nfc_send() 2021-07-29 12:28:02 +01:00
mei_phy.h nfc: constify nfc_phy_ops 2021-07-25 09:21:21 +01:00
nfcsim.c nfcsim.c: Fix error checking for debugfs_create_dir 2023-05-26 12:18:35 +01:00
port100.c NFC: port100: fix use-after-free in port100_send_complete 2022-03-09 19:59:34 -08:00
trf7970a.c nfc: trf7970a: mark OF related data as maybe unused 2023-03-15 08:03:54 +00:00
virtual_ncidev.c nfc: virtual_ncidev: Add variable to check if ndev is running 2023-11-22 10:55:48 +00:00