linux/net/can
Arnd Bergmann c7cbdbf29f net: rework SIOCGSTAMP ioctl handling
The SIOCGSTAMP/SIOCGSTAMPNS ioctl commands are implemented by many
socket protocol handlers, and all of those end up calling the same
sock_get_timestamp()/sock_get_timestampns() helper functions, which
results in a lot of duplicate code.

With the introduction of 64-bit time_t on 32-bit architectures, this
gets worse, as we then need four different ioctl commands in each
socket protocol implementation.

To simplify that, let's add a new .gettstamp() operation in
struct proto_ops, and move ioctl implementation into the common
sock_ioctl()/compat_sock_ioctl_trans() functions that these all go
through.

We can reuse the sock_get_timestamp() implementation, but generalize
it so it can deal with both native and compat mode, as well as
timeval and timespec structures.

Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/lkml/CAK8P3a038aDQQotzua_QtKGhq8O9n+rdiz2=WDCp82ys8eUT+A@mail.gmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-19 14:07:40 -07:00
..
af_can.c net: rework SIOCGSTAMP ioctl handling 2019-04-19 14:07:40 -07:00
af_can.h can: af_can: give struct holding the CAN per device receive lists a sensible name 2018-01-05 11:12:08 +01:00
bcm.c net: rework SIOCGSTAMP ioctl handling 2019-04-19 14:07:40 -07:00
gw.c can: gw: ensure DLC boundaries after CAN frame modification 2019-01-07 05:17:51 -08:00
Kconfig can: migrate documentation to restructured text 2018-01-26 10:46:44 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
proc.c proc: introduce proc_create_net_single 2018-05-16 07:24:30 +02:00
raw.c net: rework SIOCGSTAMP ioctl handling 2019-04-19 14:07:40 -07:00