linux.git/net/nfc/netlink.c, branch v3.9

NFC: Initial Secure Element API

2013-01-09T23:51:54+00:00

Each NFC adapter can have several links to different secure elements and
that property needs to be exported by the drivers.
A secure element link can be enabled and disabled, and card emulation will
be handled by the currently active one. Otherwise card emulation will be
host implemented.

Signed-off-by: Samuel Ortiz

NFC: Extend netlink interface for LTO, RW, and MIUX parameters support

2012-10-28T23:25:11+00:00

NFC_CMD_LLC_GET_PARAMS: request LTO, RW, and MIUX parameters for a device

NFC_CMD_LLC_SET_PARAMS: set one or more of LTO, RW, and MIUX parameters for
a device. LTO must be set before the link is up otherwise -EINPROGRESS is
returned. RW and MIUX can be set at anytime and will be passed in subsequent
CONNECT and CC messages. If one of the passed parameters is wrong none is
set and -EINVAL is returned.

Signed-off-by: Thierry Escande 
Signed-off-by: Samuel Ortiz

NFC: Fix some code style and whitespace issues

2012-10-26T16:26:52+00:00

Signed-off-by: Szymon Janc 
Signed-off-by: Samuel Ortiz

NFC: Add NFC_ATTR_RF_MODE when sending device netlink properties

2012-10-26T16:26:48+00:00

This is useful when getting devices to know if they're in target or
initiator mode.

Signed-off-by: Thierry Escande 
Signed-off-by: Samuel Ortiz

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

2012-09-28T15:11:16+00:00

Conflicts:
	net/nfc/netlink.c

Signed-off-by: John W. Linville

NFC: Fix sleeping in invalid context when netlink socket is closed

2012-09-27T08:52:17+00:00

netlink_register_notifier requires notify functions to not sleep.
nfc_stop_poll locks device mutex and must not be called from notifier.
Create workqueue that will handle this for all devices.

BUG: sleeping function called from invalid context at kernel/mutex.c:269
in_atomic(): 0, irqs_disabled(): 0, pid: 4497, name: neard
1 lock held by neard/4497:
Pid: 4497, comm: neard Not tainted 3.5.0-999-nfc+ #5
Call Trace:
[] __might_sleep+0x145/0x200
[] mutex_lock_nested+0x2e/0x50
[] nfc_stop_poll+0x39/0xb0
[] nfc_genl_rcv_nl_event+0x77/0xc0
[] notifier_call_chain+0x5c/0x120
[] __atomic_notifier_call_chain+0x86/0x140
[] ? notifier_call_chain+0x120/0x120
[] ? skb_dequeue+0x67/0x90
[] atomic_notifier_call_chain+0x16/0x20
[] netlink_release+0x24a/0x280
[] sock_release+0x28/0xa0
[] sock_close+0x17/0x30
[] __fput+0xcc/0x250
[] ____fput+0xe/0x10
[] task_work_run+0x69/0x90
[] do_notify_resume+0x81/0xd0
[] int_signal+0x12/0x17

Signed-off-by: Szymon Janc 
Signed-off-by: Samuel Ortiz

netlink: Rename pid to portid to avoid confusion

2012-09-10T19:30:41+00:00

It is a frequent mistake to confuse the netlink port identifier with a
process identifier.  Try to reduce this confusion by renaming fields
that hold port identifiers portid instead of pid.

I have carefully avoided changing the structures exported to
userspace to avoid changing the userspace API.

I have successfully built an allyesconfig kernel with this change.

Signed-off-by: "Eric W. Biederman" 
Acked-by: Stephen Hemminger 
Signed-off-by: David S. Miller

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

2012-07-12T17:44:50+00:00

NFC: Do not return EBUSY when stopping a poll that's already stopped

2012-07-09T20:42:21+00:00

We check for the polling flag before checking if the netlink PID caller
match.

Signed-off-by: Samuel Ortiz

net: Use NLMSG_DEFAULT_SIZE in combination with nlmsg_new()

2012-06-29T00:56:43+00:00

Using NLMSG_GOODSIZE results in multiple pages being used as
nlmsg_new() will automatically add the size of the netlink
header to the payload thus exceeding the page limit.

NLMSG_DEFAULT_SIZE takes this into account.

Signed-off-by: Thomas Graf 
Cc: Jiri Pirko 
Cc: Dmitry Eremin-Solenikov 
Cc: Sergey Lapin 
Cc: Johannes Berg 
Cc: Lauro Ramos Venancio 
Cc: Aloisio Almeida Jr 
Cc: Samuel Ortiz 
Reviewed-by: Jiri Pirko 
Signed-off-by: David S. Miller