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| author | Arnd Bergmann <arnd@arndb.de> | 2019-04-17 22:51:48 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-19 14:07:40 -0700 |
| commit | c7cbdbf29f488a19982cd9f4a109887f18028bbb (patch) | |
| tree | 74b39321c14b93411eda0939683dc9b8b713717b /net/ieee802154 | |
| parent | 1ab839281cf72476988901a2606378d76530f99c (diff) | |
| download | linux-c7cbdbf29f488a19982cd9f4a109887f18028bbb.tar.gz linux-c7cbdbf29f488a19982cd9f4a109887f18028bbb.tar.bz2 linux-c7cbdbf29f488a19982cd9f4a109887f18028bbb.zip | |
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>
Diffstat (limited to 'net/ieee802154')
| -rw-r--r-- | net/ieee802154/socket.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index bc6b912603f1..ce2dfb997537 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -164,10 +164,6 @@ static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd, struct sock *sk = sock->sk; switch (cmd) { - case SIOCGSTAMP: - return sock_get_timestamp(sk, (struct timeval __user *)arg); - case SIOCGSTAMPNS: - return sock_get_timestampns(sk, (struct timespec __user *)arg); case SIOCGIFADDR: case SIOCSIFADDR: return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg, @@ -426,6 +422,7 @@ static const struct proto_ops ieee802154_raw_ops = { .getname = sock_no_getname, .poll = datagram_poll, .ioctl = ieee802154_sock_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_common_setsockopt, @@ -988,6 +985,7 @@ static const struct proto_ops ieee802154_dgram_ops = { .getname = sock_no_getname, .poll = datagram_poll, .ioctl = ieee802154_sock_ioctl, + .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_common_setsockopt, |