linux.git/drivers/char/synclink.c, branch master Linux kernel source tree tty: move a number of tty drivers from drivers/char/ to drivers/tty/ 2011-02-23T00:14:56+00:00 Greg Kroah-Hartman gregkh@suse.de 2011-02-23T00:14:56+00:00 a6afd9f3e819de4795fcd356e5bfad446e4323f2 As planned by Arnd Bergmann, this moves the following drivers from drivers/char/ to drivers/tty/ as that's where they really belong: amiserial nozomi synclink rocket cyclades moxa mxser isicom bfin_jtag_comm Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
As planned by Arnd Bergmann, this moves the following drivers from
drivers/char/ to drivers/tty/ as that's where they really belong:
	amiserial
	nozomi
	synclink
	rocket
	cyclades
	moxa
	mxser
	isicom
	bfin_jtag_comm

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
tty: now phase out the ioctl file pointer for good 2011-02-17T19:59:56+00:00 Alan Cox alan@linux.intel.com 2011-02-14T16:27:22+00:00 6caa76b7786891b42b66a0e61e2c2fff2c884620 Only oddities here are a couple of drivers that bogusly called the ldisc helpers instead of returning -ENOIOCTLCMD. Fix the bug and the rest goes away. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
Only oddities here are a couple of drivers that bogusly called the ldisc
helpers instead of returning -ENOIOCTLCMD. Fix the bug and the rest goes
away.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
tiocmset: kill the file pointer argument 2011-02-17T19:52:43+00:00 Alan Cox alan@linux.intel.com 2011-02-14T16:26:50+00:00 20b9d17715017ae4dd4ec87fabc36d33b9de708e Doing tiocmget was such fun we should do tiocmset as well for the same reasons Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
Doing tiocmget was such fun we should do tiocmset as well for the same
reasons

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
tiocmget: kill off the passing of the struct file 2011-02-17T19:47:33+00:00 Alan Cox alan@linux.intel.com 2011-02-14T16:26:14+00:00 60b33c133ca0b7c0b6072c87234b63fee6e80558 We don't actually need this and it causes problems for internal use of this functionality. Currently there is a single use of the FILE * pointer. That is the serial core which uses it to check tty_hung_up_p. However if that is true then IO_ERROR is also already set so the check may be removed. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
We don't actually need this and it causes problems for internal use of
this functionality. Currently there is a single use of the FILE * pointer.
That is the serial core which uses it to check tty_hung_up_p. However if
that is true then IO_ERROR is also already set so the check may be removed.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
tty: icount changeover for other main devices 2010-10-22T17:20:05+00:00 Alan Cox alan@linux.intel.com 2010-09-16T17:21:52+00:00 0587102cf9f427c185bfdeb2cef41e13ee0264b1 Again basically cut and paste Convert the main driver set to use the hooks for GICOUNT Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
Again basically cut and paste

Convert the main driver set to use the hooks for GICOUNT

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
tty: release BTM while sleeping in block_til_ready 2010-08-10T20:47:44+00:00 Arnd Bergmann arnd@arndb.de 2010-06-01T20:53:10+00:00 e142a31da34b42458e10026b554e66127739cf23 Most tty drivers may block while opening a device. Since this possibly depends on another thread closing it first and both threads may need the BTM, we need to release it here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
Most tty drivers may block while opening a device.
Since this possibly depends on another thread
closing it first and both threads may need the BTM,
we need to release it here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
synclink: kill the big kernel lock 2010-08-10T20:47:40+00:00 Alan Cox alan@linux.intel.com 2010-06-01T20:52:46+00:00 f602501d90e0da28c8e6f5e4569b8bf5d40a9d9c We don't need it while waiting and we can lock the ioctls using the port mutex. While at it eliminate use of the hangup mutex and switch to the port mutex. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
We don't need it while waiting and we can lock the ioctls using the port
mutex. While at it eliminate use of the hangup mutex and switch to the port
mutex.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Char: synclink, remove unnecessary checks 2010-03-02T22:43:16+00:00 Jiri Slaby jslaby@suse.cz 2010-01-10T11:30:16+00:00 ca1cce49c2778439d00bbf516f70386f3d3b71e5 Stanse found a potential null dereference in mgsl_put_char and mgsl_write. There is a check for tty being NULL, but it is dereferenced earlier. Actually, tty cannot be NULL in .write and .put_char, so remove the tests. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
Stanse found a potential null dereference in mgsl_put_char and
mgsl_write. There is a check for tty being NULL, but it is
dereferenced earlier.

Actually, tty cannot be NULL in .write and .put_char, so remove
the tests.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hdlc: convert to netdev_tx_t 2009-09-01T08:13:31+00:00 Stephen Hemminger shemminger@vyatta.com 2009-08-31T19:50:48+00:00 4c5d502d8b2db8947c44dc44bdc67dbe55cce2b9 Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
headers: smp_lock.h redux 2009-07-12T19:22:34+00:00 Alexey Dobriyan adobriyan@gmail.com 2009-07-11T18:08:37+00:00 405f55712dfe464b3240d7816cc4fe4174831be2 * Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>