Arnd Bergmann [Thu, 6 Aug 2009 13:09:28 +0000 (15:09 +0200)]
tty: handle VT specific compat ioctls in vt driver
The VT specific compat_ioctl handlers are the only ones
in common code that require the BKL. Moving them into
the vt driver lets us remove the BKL from the other handlers
and cleans up the code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Joe Peterson [Wed, 9 Sep 2009 21:03:47 +0000 (15:03 -0600)]
n_tty: move echoctl check and clean up logic
Check L_ECHOCTL before insertting a character in the echo buffer
(rather than as the buffer is processed), to be more consistent with
when all other L_ flags are checked. Also cleaned up the related logic.
Note that this and the previous patch ("n_tty: honor opost flag for echoes")
were verified together by the reporters of the bug that patch addresses
(http://bugs.linuxbase.org/show_bug.cgi?id=2692), and the test now passes.
Signed-off-by: Joe Peterson <joe@skyrush.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Joe Peterson [Wed, 9 Sep 2009 21:03:13 +0000 (15:03 -0600)]
n_tty: honor opost flag for echoes
Fixes the following bug:
http://bugs.linuxbase.org/show_bug.cgi?id=2692
Causes processing of echoed characters (output from the echo buffer) to
honor the O_OPOST flag, which is consistent with the old behavior.
Note that this and the next patch ("n_tty: move echoctl check and
clean up logic") were verified together by the bug reporters, and
the test now passes.
Signed-off-by: Joe Peterson <joe@skyrush.com>
Cc: Linux Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:33 +0000 (13:13 -0700)]
tty: USB serial termios bits
Various drivers have hacks to mangle termios structures. This stems from
the fact there is no nice setup hook for configuring the termios settings
when the port is created
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Deepak Saxena [Sat, 19 Sep 2009 20:13:33 +0000 (13:13 -0700)]
Set proper console speed on resume if console suspend is disabled
Commit
b5b82df6, from May 2007, breaks no_console_suspend on the OLPC
XO laptop. Basically what happens is that upon returning from resume,
serial8250_resume_port() will reconfigure the port for high speed
mode and all console output will be garbled, making debug of the
resume path painful. This patch modifies uart_resume_port() to
reset the port to the state it was in before we suspended.
Original patch by Marcelo Tosatti
Second patch by Deepak then reworked by Alan to fit with the tty changes
before it got submitted. Also fixed the console path to set c_i/ospeed as
some drivers require the termios fields are valid
Signed-off-by: Deepak Saxena <dsaxena@laptop.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:33 +0000 (13:13 -0700)]
serial: introduce tty krefs
Initially just use the helper and thus krefs when we set and clear the
port values.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Alan Cox [Sat, 19 Sep 2009 20:13:32 +0000 (13:13 -0700)]
serial: kill USF_CLOSING_* definitions
The serial layer for some reason uses different defines for the special
case close delays and then conditionally switches to/from the normal ones
in the ioctls.
Remove this rather pointless abstraction
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:32 +0000 (13:13 -0700)]
serial: move port users helper
This little helper is now tty_port specific and useful generally so move it
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:31 +0000 (13:13 -0700)]
serial: move delta_msr_wait into the tty_port
This is used by various drivers not just serial and can be extracted
as commonality
Signed-off-by: Alan Cox <alan@linux.intel.com>
Alan Cox [Sat, 19 Sep 2009 20:13:31 +0000 (13:13 -0700)]
serial: replace the state mutex with the tty port mutex
They cover essentially the same stuff and we can therefore fold it into the
tty_port one.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:30 +0000 (13:13 -0700)]
serial: kill off uif_t
This typedef is now extinct
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:30 +0000 (13:13 -0700)]
serial: move the flags into the tty_port field
Fortunately the serial layer was designed to use the same flag values but
with different names. It has its own SUSPENDED flag which is a free slot in
the ASYNC flags so we allocate it in the ASYNC flags instead.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:29 +0000 (13:13 -0700)]
serial: move count into the tty_port version
Remove more stuff from the serial special case code
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:29 +0000 (13:13 -0700)]
serial: use tty_port pointers in the core code
Extract out a lot of the x.port. uses and also show up where there are
things left to be isolated that prevent use using the port helpers in the
serial layer at this point
Signed-off-by: Alan Cox <alan@linux.intel.com>
Alan Cox [Sat, 19 Sep 2009 20:13:28 +0000 (13:13 -0700)]
serial: Fold closing_* fields into the tty_port ones
Remove some more serial specific use
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:28 +0000 (13:13 -0700)]
serial: kill off uart_info
We moved this into uart_state, now move the fields out of the separate
structure and kill it off.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:27 +0000 (13:13 -0700)]
isicom: split the open method for the isicom device
Again moving towards being able to add a common open method
Signed-off-by: Alan Cox <alan@linux.intel.com>
Alan Cox [Sat, 19 Sep 2009 20:13:26 +0000 (13:13 -0700)]
tty: USB does not need the filp argument in the drivers
And indeed none of them use it. Clean this up as it will make moving to a
standard open method rather easier.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:26 +0000 (13:13 -0700)]
vt: add an activate and lock
X and other graphical interfaces need to be able to flip to a console
and lock it into graphics mode without races.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:25 +0000 (13:13 -0700)]
vt: move kernel stuff out of vt.h
We have vt_kern.h for this
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:25 +0000 (13:13 -0700)]
vt: remove power stuff from kernel/power
In the past someone gratuitiously borrowed chunks of kernel internal vt
code and dumped them in kernel/power. They have all sorts of deep relations
with the vt code so put them in the vt tree instead
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:24 +0000 (13:13 -0700)]
vt: add an event interface
This is needed and requested in various forms for ConsoleKit, screenblank
handling and the like so do the job with a single interface. Also build the
interface so that unlike VT_WAITACTIVE and friends it won't miss events.
FIXME: Should this be a waitactive ioctl or a new device file you can poll
and read events from. We need the code anyway to fix up the existing broken
wait for console switch logic but the ConsoleKit people would prefer the
new device to the ioctl we have here
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:24 +0000 (13:13 -0700)]
tty: USB can now use the shutdown method for kref based freeing of ports
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:24 +0000 (13:13 -0700)]
tty: remove dtr/rts use from the driver open methods
These are handled by the tty_port core code which will raise and lower the
carrier correctly in tty_wait_until_ready
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:23 +0000 (13:13 -0700)]
tty: USB hangup is racy
The USB layer uses tty_hangup to deal with unplugs of the physical hardware
(analogous to loss of carrier) and then frees the resources. However the
tty_hangup is asynchronous. As the hangup can sleep we can use tty_vhangup
which is the non async version to avoid freeing resources too early.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:23 +0000 (13:13 -0700)]
cdc_acm: Fix to use modern speed interfaces
This changed in 2006 so its about time the ACM driver caught up
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:22 +0000 (13:13 -0700)]
tty: make the kref destructor occur asynchronously
We want to be able to sleep in the destructor for USB at least. It isn't a
hot path so just pushing it to a work queue doesn't really cause any
difficulty.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:22 +0000 (13:13 -0700)]
cyclades: use the full port_close function
Convert cyclades to use the full tty_port_close helper
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:22 +0000 (13:13 -0700)]
tty: riscom8 kref and tty_port_close
We need to kref this driver in order to use port_close
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:21 +0000 (13:13 -0700)]
isicom: Split the close hardware bits out
Start to extract and build a model for a common tty_port_close()
Signed-off-by: Alan Cox <alan@linux.intel.com>
Alan Cox [Sat, 19 Sep 2009 20:13:21 +0000 (13:13 -0700)]
mxser: Split close ready for a standard tty_port_close method
Prepare for the tty_port_close function by splitting out methods
Signed-off-by: Alan Cox <alan@linux.intel.com>
Alan Cox [Sat, 19 Sep 2009 20:13:21 +0000 (13:13 -0700)]
riscom8: split open and close methods up
Moving towards a tty_port method for open/close
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:20 +0000 (13:13 -0700)]
tty: Add a full port_close function
Now we are extracting out methods for shutdown and the like we can add a
proper tty_port_close method that knows all the innards of the tty closing
process and hides the lot from the caller.
At some point in the future this will be paired with a similar open()
helper and the drivers can stick to hardware management.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anton Vorontsov [Sat, 19 Sep 2009 20:13:20 +0000 (13:13 -0700)]
8250: Now honours baud rate lower bounds
A platform clock drives 8250 ports in most SOC systems, the clock
might run at high frequencies, and so it's not always possible to
downscale uart clock to a desired value.
Currently the 8250 uart driver accepts not supported baud rates, and
what is worse, it is doing this silently, and then passes not accepted
values to a new termios, so userspace has no chance to catch this kind
of errors (userspace verifies that settings were accepted by reading
back and comparing the settings).
This patch fixes the issue by passing minimum baud rate to the
uart_get_baud_rate() call, the call should take care of all bounds,
so userspace should now report:
# stty -F /dev/ttyS0 speed 300
115200
stty: /dev/ttyS0: unable to perform all requested operations
p.s. uart_get_baud_rate() falls back to 9600, which still might be too
low for some 10 GHz platforms, but that's a separate issue, and
we can wait with fixing this till we find such a platform.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Vikram Pandita [Sat, 19 Sep 2009 20:13:19 +0000 (13:13 -0700)]
serial: 8250: add IRQ trigger support
There is currently no provision for passing IRQ trigger flags for
serial IRQs with triggering requirements (such as GPIO IRQs)
This patch adds irqflags to plat_serial8250_port that can be passed
from board file to reqest_irq() of 8250 driver
Changes are backward compatible with boards passing UPF_SHARE_IRQ flag
Tested on Zoom2 board that has IRQF_TRIGGER_RISING requirement for 8250 irq
[Moved new flag to end to fix bugs in the original with the old_serial array
-- Alan]
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:19 +0000 (13:13 -0700)]
mos7840: remove old dead modem logic
The modem ioctls are not routed via the ioctl method so kill the old dead
code. The correct code is also already present and hooked in.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:19 +0000 (13:13 -0700)]
tty: Fix a typo noted in passing
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kees Schoenmakers [Sat, 19 Sep 2009 20:13:18 +0000 (13:13 -0700)]
tty: usb_serial_mos7720: Fix get_lsr_info
I made a correction for get_lsr_info, now it returns some meaningful
information. I tested it with two simultaneous simplex modem channels.
it is attached
Signed-off-by: Kees Schoenmakers <k.schoenmakers@sigmae.nl>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kees Schoenmakers [Sat, 19 Sep 2009 20:13:18 +0000 (13:13 -0700)]
MOS7720 has no tiocmget method
Fix the tiocmget/mset handling on the mos7720 USB serial port.
[Minor space reformatting for coding style - Alan]
Signed-off-by: Kees Schoenmakers <k.schoenmakers@sigmae.nl>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:17 +0000 (13:13 -0700)]
kfifo: Use "const" definitions
Currently kfifo cannot be used by parts of the kernel that use "const"
properly as kfifo itself does not use const for passed data blocks which
are indeed const.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sat, 19 Sep 2009 20:13:17 +0000 (13:13 -0700)]
slip: Clean up create and destroy
The network layer now has a destructor we can hook to clean up the slip
devices array. That needs us to initiate unregister events in the right
places which with the current tty layer we can do, and with network
refcounting is safe to do.
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:17 +0000 (13:13 -0700)]
cyclades: remove more duplicated code
Remove duplicated code from cy_set_line_char. There were 2 if
branches with same contents except flags.
Branch only for the flags computation and use them in the only copy
of the code.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:16 +0000 (13:13 -0700)]
cyclades: introduce cyy_readb/writeb
Add helpers for io operations, so that we can eliminate huge
amount of supporting code. It is now centralized in those
helpers and used values are precomputed in the init phase.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:16 +0000 (13:13 -0700)]
cyclades: tiocm cleanup
- save one indent level by inverting !fw_loaded condition
- read rs_status on Z and write it after we change all the flags,
don't do that separately
- remove Y inverted rts/dtr branching, precompute registers and use
them
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:15 +0000 (13:13 -0700)]
cyclades: ioctls cleanup
- add a cy_ prefix to functions with changed prototypes
- cy_get_serial_info: initialize serial_struct by initializer,
save a memset
- inline simple functions (get_mon_info, {s,g}et_default_threshold,
{s,g}et_default_timeout) directly in the ioctl handler
- add a cy_cflags_changed helper to not copy its code by
wait_event_interruptible
- remove some ret_val = 0 assignments, it's preset to 0
- TIOCGICOUNT: don't do many put_user's, do one copy_to_user
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:15 +0000 (13:13 -0700)]
cyclades: merge cy_startup tails
There is a duplicated code for Y and Z in cy_startup, merge the paths.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:15 +0000 (13:13 -0700)]
cyclades: use dtr_rts helpers
For Z cards, use tty helpers for dtr_rts.
If we did the same for Y cards, it will cause a deadlock, because
cyy_dtr_rts takes a lock which we already hold.
Instead, we introduce a Y helper expecting card lock to be held.
It may then be called with set/clear masks from other places.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:14 +0000 (13:13 -0700)]
cyclades: sleep instead busy-wait
Avoid long busy loops (5 ms) which may be replaced by sleeps.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:14 +0000 (13:13 -0700)]
cyclades: overall cleanup
- remove changelog from the file. we don't care about ancient
history
- update copyright year
- update version
- constify some stuff
- empty lines removal
- unused variables and macros removal
- remove some asm/ includes, they are sucked by linux/ variants
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:13 +0000 (13:13 -0700)]
cyclades: close cleanup
Use new tty helpers for close, which allows much code removal.
The only real change is locking. card_lock for protecting was
used inappropriately (just to have a critical section, no matter
which lock is used), so the change to port->lock is fine.
Remove also useless debug printks while being there.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:13 +0000 (13:13 -0700)]
cyclades: switch to tty_port_hangup
Do not duplicate common tty_port_hangup code. Use it instead.
Also do not unset ASYNC_NORMAL_ACTIVE and wake up from the
tty_hangup() caller. It makes no sense since we don't check that
flag in sleepers. tty_port_hangup() performed later will do the
right job.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:13 +0000 (13:13 -0700)]
cyclades: avoid addresses recomputation
Don't fetch firmware address and recompute channel control on each
port access. Precompute the values on init and use them later all
the time.
The same for board control.
This simplify code and improves readability.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:12 +0000 (13:13 -0700)]
cyclades: remove block_til_ready
Use a tty_port common instead. This saves lots of .text and makes the
code a lot more readable.
This involves separation of a dtr_rts handling, next patches will use
that to not duplicate the code all over the place.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Sat, 19 Sep 2009 20:13:12 +0000 (13:13 -0700)]
cyclades: add tty refcounting
While this is not problem for Y card handlers (they are protected
by card_lock), Z handlers and other functions may dereference NULL
at any point after hangup/close. Even if (tty == NULL) was already
performed in the handler.
Note that it's not an issue for Y cards just for now. After
switching to tty_port_close_* et al. this will be a problem. So
add refcounting to them all.
Also proc .show doesn't take a tty reference and it should (along
with a ldisc one).
While at it and changing prototypes (adding tty param), prepend
cy_ to functions which don't have it yet.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Roel Kluin [Fri, 14 Aug 2009 12:02:34 +0000 (14:02 +0200)]
tty: icom: bit and/or confusion?
Previously, if any bit other than CMD_SND_BREAK was set, CMD_SND_BREAK
was not unset.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jaswinder Singh Rajput [Thu, 13 Aug 2009 08:26:20 +0000 (13:56 +0530)]
tty: includecheck fix: drivers/char, vt.c
fix the following 'make includecheck' warning:
drivers/char/vt.c: linux/device.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Mon, 3 Aug 2009 23:01:28 +0000 (16:01 -0700)]
tty-ldisc: get rid of tty_ldisc_try_get() helper function
Now that the /proc/tty/ldiscs handling doesn't play games with 'struct
ldisc' any more, the only remaining user of 'tty_ldisc_try_get()' is
'tty_ldisc_get()' (note the lack of 'try').
And we're actually much better off folding the logic directly into that
file, since the 'try' part was always about trying to get the ldisc
operations, not the ldisc itself: and making that explicit inside of
'tty_ldisc_get()' clarifies the whole semantics.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>,
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Mon, 3 Aug 2009 23:00:15 +0000 (16:00 -0700)]
tty-ldisc: make /proc/tty/ldiscs use ldisc_ops instead of ldiscs
The /proc/tty/ldiscs file is totally and utterly un-interested in the
"struct tty_ldisc" structures, and only cares about the underlying ldisc
operations.
So don't make it create a dummy 'struct ldisc' only to get a pointer to
the operations, and then destroy it. Instead, we split up the function
'tty_ldisc_try_get()', and create a 'get_ldops()' helper that just looks
up the ldisc operations based on the ldisc number.
That makes the code simpler to read (smaller and more well-defined
helper functions), and allows the /proc functions to avoid creating that
useless dummy only to immediately free it again.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Wolfram Sang [Sat, 1 Aug 2009 13:28:35 +0000 (15:28 +0200)]
tty: serial/pcmcia: add ID for Advantech card
Add ID as reported in:
http://lists.infradead.org/pipermail/linux-pcmcia/2009-May/006127.html
Reported-by: Kenneth Moorman <KMoorman@transy.edu>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Frysinger [Thu, 6 Aug 2009 22:20:05 +0000 (15:20 -0700)]
serial: bfin_5xx: fix building as module when early printk is enabled
Since early printk only makes sense/works when the serial driver is built
into the kernel, disable the option for this driver when it is going to be
built as a module. Otherwise we get build failures due to the ifdef
handling.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tilman Schmidt [Fri, 7 Aug 2009 03:33:33 +0000 (20:33 -0700)]
tty: gigaset: really fix chars_in_buffer
The tty_operation chars_in_buffer() is not allowed to return a negative
value to signal an error. Corrects the problem flagged by commit
23198fda7182969b619613a555f8645fdc3dc334, "tty: fix chars_in_buffers".
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Fri, 18 Sep 2009 21:05:47 +0000 (14:05 -0700)]
Merge branch 'x86-platform-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (38 commits)
x86: Move get/set_wallclock to x86_platform_ops
x86: platform: Fix section annotations
x86: apic namespace cleanup
x86: Distangle ioapic and i8259
x86: Add Moorestown early detection
x86: Add hardware_subarch ID for Moorestown
x86: Add early platform detection
x86: Move tsc_init to late_time_init
x86: Move tsc_calibration to x86_init_ops
x86: Replace the now identical time_32/64.c by time.c
x86: time_32/64.c unify profile_pc
x86: Move calibrate_cpu to tsc.c
x86: Make timer setup and global variables the same in time_32/64.c
x86: Remove mca bus ifdef from timer interrupt
x86: Simplify timer_ack magic in time_32.c
x86: Prepare unification of time_32/64.c
x86: Remove do_timer hook
x86: Add timer_init to x86_init_ops
x86: Move percpu clockevents setup to x86_init_ops
x86: Move xen_post_allocator_init into xen_pagetable_setup_done
...
Fix up conflicts in arch/x86/include/asm/io_apic.h
Geoffrey Thomas [Fri, 18 Sep 2009 19:52:09 +0000 (15:52 -0400)]
sparc: Clean up linker script using new linker script macros.
Signed-off-by: Geoffrey Thomas <geofft@ksplice.com>
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nelson Elhage [Fri, 18 Sep 2009 19:52:08 +0000 (15:52 -0400)]
frv: clean up linker script using new linker script macros.
This is largely a straightforward conversion. The patch results in
fewer output sections, and some data being reordered, but should have
no functional impact.
Also, note that this patch moves some data (namely, init_task and
cacheline-aligned) inside [_sdata,_edata].
Because frv already builds using -ffunction-sections -fdata-sections,
we can't use BSS_SECTION or RW_DATA_SECTION yet, since they do not
currently include the required .bss.* and .data.* sections.
Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nelson Elhage [Fri, 18 Sep 2009 19:52:07 +0000 (15:52 -0400)]
frv: remove unused .altinstructions code
It appears that frv copied the .altinstructions definitions in its linker
script from x86. Since frv doesn't put anything in those sections, this
is just dead code.
Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 18 Sep 2009 17:56:26 +0000 (10:56 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (64 commits)
ext4: Update documentation about quota mount options
ext4: replace MAX_DEFRAG_SIZE with EXT_MAX_BLOCK
ext4: Fix the alloc on close after a truncate hueristic
ext4: Add a tracepoint for ext4_alloc_da_blocks()
ext4: store EXT4_EXT_MIGRATE in i_state instead of i_flags
ext4: limit block allocations for indirect-block files to < 2^32
ext4: Fix different block exchange issue in EXT4_IOC_MOVE_EXT
ext4: Add null extent check to ext_get_path
ext4: Replace BUG_ON() with ext4_error() in move_extents.c
ext4: Replace get_ext_path macro with an inline funciton
ext4: Fix include/trace/events/ext4.h to work with Systemtap
ext4: Fix initalization of s_flex_groups
ext4: Always set dx_node's fake_dirent explicitly.
ext4: Fix async commit mode to be safe by using a barrier
ext4: Don't update superblock write time when filesystem is read-only
ext4: Clarify the locking details in mballoc
ext4: check for need init flag in ext4_mb_load_buddy
ext4: move ext4_mb_init_group() function earlier in the mballoc.c
ext4: Make non-journal fsync work properly
ext4: Assure that metadata blocks are written during fsync in no journal mode
...
Alexey Dobriyan [Fri, 18 Sep 2009 19:55:55 +0000 (23:55 +0400)]
headers: taskstats_kern.h trim
Remove net/genetlink.h inclusion, now sched.c won't be recompiled
because of some networking changes.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Johannes Weiner [Fri, 18 Sep 2009 02:26:53 +0000 (19:26 -0700)]
kernel-doc: allow multi-line declaration purpose descriptions
Allow the short description after symbol name and dash in a kernel-doc
comment to span multiple lines, e.g. like this:
/**
* unmap_mapping_range - unmap the portion of all mmaps in the
* specified address_space corresponding to the specified
* page range in the underlying file.
* @mapping: the address space containing mmaps to be unmapped.
* ...
*/
The short description ends with a parameter description, an empty line
or the end of the comment block.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jianjun Kong [Fri, 18 Sep 2009 02:26:26 +0000 (19:26 -0700)]
mm: Fix problem of parameter in note
'current' is a pointer, so the right form is 'down_write(¤t->mm->mmap_sem)'.
Signed-off-by: Jianjun Kong <jianjun@zeuux.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Fri, 18 Sep 2009 02:26:04 +0000 (19:26 -0700)]
kref: double kref_put() in my_data_handler()
The kref_put() already occurs after the out label
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 18 Sep 2009 16:47:25 +0000 (09:47 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] sizeof cleanup
[WATCHDOG] wdt_pci: fix printk and variable type
[WATCHDOG] wdt_pci - use pci_request_region
[WATCHDOG] ar7_wdt: Fix error handling during probe.
[WATCHDOG] ar7_wdt: convert to become a platform driver
[WATCHDOG] fix book E watchdog to take WDIOC_SETTIMEOUT arg in seconds
[WATCHDOG] davinci: use clock framework for timer frequency
[WATCHDOG] Use DIV_ROUND_UP() macro in the coh901327 WDT
[WATCHDOG] Add support for WM831x watchdog
[WATCHDOG] Add watchdog driver for NUC900
[WATCHDOG] add SBC-FITPC2 watchdog driver
Linus Torvalds [Fri, 18 Sep 2009 16:45:08 +0000 (09:45 -0700)]
Merge branch 'for-linus' of git://gitserver.sunplusct.com/linux-2.6-score
* 'for-linus' of git://gitserver.sunplusct.com/linux-2.6-score: (22 commits)
score: add TIF_NOTIFY_RESUME define in asm/thread_info.h
score: make init_thread_union align to THREAD_SIZE
score: update files according to review comments.
score: add old syscall support
score: add MEMORY_START and MEMORY_SIZE define, to make the code clear
score: update inconsistent declare after .c was changed
score: remove unused code, add include files in .c
score: clean up mm/init.c
score: make irq.h definitions local
score: cleanups: dead code, 0 as pointer, shadowed variables
score: fix function prototypes
score: add address space annotations
score: add missing #includes
score: move save arg5 and arg6 instruction in front of enable_irq
score: add prototypes for wrapped syscalls
score: remove init_mm
score: add generic sys_call_table
score: remove __{put,get}_user_unknown
score: unset __ARCH_WANT_IPC_PARSE_VERSION
score: update files according to review comments
...
Linus Torvalds [Fri, 18 Sep 2009 16:43:09 +0000 (09:43 -0700)]
Merge git://git./linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits)
sh: mach-ecovec24: Add user debug switch support
sh: Kill off unused se_skipped in alignment trap notification code.
sh: Wire up HAVE_SYSCALL_TRACEPOINTS.
video: sh_mobile_lcdcfb: use both register sets for display panning
video: sh_mobile_lcdcfb: implement display panning
sh: Fix up sh7705 flush_dcache_page() build.
sh: kfr2r09: document the PLL/FLL <-> RF relationship.
sh: mach-ecovec24: need asm/clock.h.
sh: mach-ecovec24: deassert usb irq on boot.
sh: Add KEYSC support for EcoVec24
sh: add kycr2_delay for sh_keysc
sh: cpufreq: Include CPU id in info messages.
sh: multi-evt support for SH-X3 proto CPU.
sh: clkfwk: remove bogus set_bus_parent() from SH7709.
sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300)
sh: Add EcoVec24 romImage defconfig
sh: USB disable process is needed if romImage boot for EcoVec24
sh: EcoVec24: add HIZA setting for LED
sh: EcoVec24: write MAC address in boot
sh: Add romImage support for EcoVec24
...
Linus Torvalds [Fri, 18 Sep 2009 16:33:07 +0000 (09:33 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Clean up linker script using standard macros.
[IA64] Use standard macros for page-aligned data.
[IA64] Use .ref.text, not .text.init for start_ap.
[IA64] sgi-xp: fix printk format warnings
[IA64] ioc4_serial: fix printk format warnings
[IA64] mbcs: fix printk format warnings
[IA64] pci_br, fix infinite loop in find_free_ate()
[IA64] kdump: Short path to freeze CPUs
[IA64] kdump: Try INIT regardless of
[IA64] kdump: Mask INIT first in panic-kdump path
[IA64] kdump: Don't return APs to SAL from kdump
[IA64] kexec: Unregister MCA handler before kexec
[IA64] kexec: Make INIT safe while transition to
[IA64] kdump: Mask MCA/INIT on frozen cpus
Fix up conflict in arch/ia64/kernel/vmlinux.lds.S as per Tony's
suggestion.
Linus Torvalds [Fri, 18 Sep 2009 16:23:03 +0000 (09:23 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mszeredi/fuse
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: add fusectl interface to max_background
fuse: limit user-specified values of max background requests
fuse: use drop_nlink() instead of direct nlink manipulation
fuse: document protocol version negotiation
fuse: make the number of max background requests and congestion threshold tunable
Linus Torvalds [Fri, 18 Sep 2009 16:22:36 +0000 (09:22 -0700)]
Merge branch 'for-next' of git://git./linux/kernel/git/sameo/mfd-2.6
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (55 commits)
regulator: Voltage count for AB3100
mfd: Convert WM8350 to use request_threaded_irq()
mfd: Update MAINTAINERS patterns for WM831x
mfd: Fix twl4030-power warnings
regulator: AB3100 support
rtc: AB3100 RTC support
mfd: Fix ab3100-otp build failure
mfd: OMAP: Board-specifc twl4030 DPS scripts for RX51 board
mfd: Print warning for twl4030 out-of-order script loading
mfd: Add support for TWL4030/5030 dynamic power switching
mfd: AB3100 OTP readout
regulator: Add Freescale MC13783 driver
mfd: Add Freescale MC13783 driver
mfd: AB3100 disable irq nosync
mfd: AB3100 alter default setting
mfd: AB3100 propagate error
mfd: AB3100 accessor function cleanups
rtc: Add support for RTCs on Wolfson WM831x devices
regulator: get pcap data from the parent device
input: PCAP2 misc input driver
...
Jan Kara [Fri, 18 Sep 2009 16:22:29 +0000 (12:22 -0400)]
ext4: Update documentation about quota mount options
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Linus Torvalds [Fri, 18 Sep 2009 16:20:37 +0000 (09:20 -0700)]
Merge branch 'davinci-for-linus' of git://git./linux/kernel/git/khilman/linux-davinci
* 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: (62 commits)
DaVinci: DM646x - platform changes for vpif capture and display drivers
davinci: DM355 - platform changes for vpfe capture
davinci: DM644x platform changes for vpfe capture
davinci: audio: move tlv320aic33 i2c setup into board files
DaVinci: EDMA: Adding 2 new APIs for allocating/freeing PARAMs
DaVinci: DM365: Adding entries for DM365 IRQ's
DaVinci: DM355: Adding PINMUX entries for DM355 Display
davinci: Handle pinmux conflict between mmc/sd and nor flash
davinci: Add NOR flash support for da850/omap-l138
davinci: Add NAND flash support for DA850/OMAP-L138
davinci: Add MMC/SD support for da850/omap-l138
davinci: Add platform support for da850/omap-l138 GLCD
davinci: Macro to convert GPIO signal to GPIO pin number
davinci: Audio support for DA850/OMAP-L138 EVM
davinci: Audio support for DA830 EVM
davinci: Correct the number of GPIO pins for da850/omap-l138
davinci: Configure MDIO pins for EMAC
DaVinci: DM365: Add Support for new Revision of silicon
DaVinci: DM365: Fix Compilation issue due to PINMUX entry
DaVinci: EDMA: Updating default queue handling
...
Linus Torvalds [Fri, 18 Sep 2009 16:19:26 +0000 (09:19 -0700)]
Merge branch 'omap-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (47 commits)
OMAP clock: use debugfs_remove_recursive() for rewinding
OMAP2/3/4 core: create omap_device layer
OMAP: omap_hwmod: call omap_hwmod init at boot; create interconnects
OMAP2/3/4: create omap_hwmod layer
OMAP2/3 board-*.c files: read bootloader configuration earlier
OMAP2/3/4 PRCM: add module IDLEST wait code
OMAP2/3 PM: create the OMAP PM interface and add a default OMAP PM no-op layer
OMAP3 clock: remove superfluous calls to omap2_init_clk_clkdm
OMAP clock: associate MPU clocks with the mpu_clkdm
OMAP3 clock: Fixed processing of bootarg 'mpurate'
OMAP: SDRC: Add several new register definitions
OMAP: powerdomain: Fix overflow when doing powerdomain deps lookups.
OMAP: PM: Added suspend target state control to debugfs for OMAP3
OMAP: PM debug: Add PRCM register dump support
OMAP: PM debug: make powerdomains use PM-debug counters
OMAP: PM: Add pm-debug counters
OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each.
OMAP: PM: Hook into PM counters
OMAP: PM counter infrastructure.
OMAP3: PM: fix lockdep warning caused by omap3_pm_init
...
Linus Torvalds [Fri, 18 Sep 2009 16:19:10 +0000 (09:19 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/teigland/dlm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
dlm: use kernel_sendpage
dlm: fix connection close handling
dlm: fix double-release of socket in error exit path
Linus Torvalds [Fri, 18 Sep 2009 16:18:52 +0000 (09:18 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
ext3: Flush disk caches on fsync when needed
ext3: Add locking to ext3_do_update_inode
ext3: Fix possible deadlock between ext3_truncate() and ext3_get_blocks()
jbd: Annotate transaction start also for journal_restart()
jbd: Journal block numbers can ever be only 32-bit use unsigned int for them
ext3: Update MAINTAINERS for ext3 and JBD
JBD: round commit timer up to avoid uncommitted transaction
Linus Torvalds [Fri, 18 Sep 2009 16:16:57 +0000 (09:16 -0700)]
Merge branch 'next' of git://git./linux/kernel/git/davej/cpufreq
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Fix NULL ptr regression in powernow-k8
[CPUFREQ] Create a blacklist for processors that should not load the acpi-cpufreq module.
[CPUFREQ] Powernow-k8: Enable more than 2 low P-states
[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call (second call site)
[CPUFREQ] ondemand - Use global sysfs dir for tuning settings
[CPUFREQ] Introduce global, not per core: /sys/devices/system/cpu/cpufreq
[CPUFREQ] Bail out of cpufreq_add_dev if the link for a managed CPU got created
[CPUFREQ] Factor out policy setting from cpufreq_add_dev
[CPUFREQ] Factor out interface creation from cpufreq_add_dev
[CPUFREQ] Factor out symlink creation from cpufreq_add_dev
[CPUFREQ] cleanup up -ENOMEM handling in cpufreq_add_dev
[CPUFREQ] Reduce scope of cpu_sys_dev in cpufreq_add_dev
[CPUFREQ] update Doc for cpuinfo_cur_freq and scaling_cur_freq
Linus Torvalds [Fri, 18 Sep 2009 16:15:24 +0000 (09:15 -0700)]
Merge branch 'timers-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (34 commits)
time: Prevent 32 bit overflow with set_normalized_timespec()
clocksource: Delay clocksource down rating to late boot
clocksource: clocksource_select must be called with mutex locked
clocksource: Resolve cpu hotplug dead lock with TSC unstable, fix crash
timers: Drop a function prototype
clocksource: Resolve cpu hotplug dead lock with TSC unstable
timer.c: Fix S/390 comments
timekeeping: Fix invalid getboottime() value
timekeeping: Fix up read_persistent_clock() breakage on sh
timekeeping: Increase granularity of read_persistent_clock(), build fix
time: Introduce CLOCK_REALTIME_COARSE
x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown
clocksource: Avoid clocksource watchdog circular locking dependency
clocksource: Protect the watchdog rating changes with clocksource_mutex
clocksource: Call clocksource_change_rating() outside of watchdog_lock
timekeeping: Introduce read_boot_clock
timekeeping: Increase granularity of read_persistent_clock()
timekeeping: Update clocksource with stop_machine
timekeeping: Add timekeeper read_clock helper functions
timekeeping: Move NTP adjusted clock multiplier to struct timekeeper
...
Fix trivial conflict due to MIPS lemote -> loongson renaming.
Linus Torvalds [Fri, 18 Sep 2009 14:05:58 +0000 (07:05 -0700)]
pty_write: don't do a tty_wakeup() when the buffers are full
Commit
ac89a9174 ("pty: don't limit the writes to 'pty_space()' inside
'pty_write()'") removed the pty_space() checking, in order to let the
regular tty buffer code limit the buffering itself.
That was all good, but as a subtle side effect it meant that we'd be
doing a tty_wakeup() even in the case where the buffers were all filled
up, and didn't actually make any progress on the write.
Which sounds innocuous, but it interacts very badly with the ppp_async
code, which has an infinite loop in ppp_async_push() that tries to push
out data to the tty. When we call tty_wakeup(), that loop ends up
thinking that progress was made (see the subtle interactions between
XMIT_WAKEUP and 'tty_stuffed' for details). End result: one unhappy ppp
user.
Fixed by noticing when tty_insert_flip_string() didn't actually do
anything, and then not doing any more processing (including, very much
not calling tty_wakeup()).
Bisected-and-tested-by: Peter Volkov <pva@gentoo.org>
Cc: stable@kernel.org (2.6.31)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wim Van Sebroeck [Wed, 2 Sep 2009 09:10:07 +0000 (09:10 +0000)]
[WATCHDOG] sizeof cleanup
Use sizeof(*) instead of sizeof * (See Codingstyle documentation).
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Randy Dunlap [Fri, 7 Aug 2009 22:02:00 +0000 (15:02 -0700)]
[WATCHDOG] wdt_pci: fix printk and variable type
Fix printk format warning:
drivers/watchdog/wdt_pci.c:652: warning: format '%04x' expects type 'unsigned int', but argument 2 has type 'resource_size_t'
and then use resource_size_t for the "io" variable as well
so that it won't be truncated.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Wim Van Sebroeck [Thu, 6 Aug 2009 18:57:49 +0000 (18:57 +0000)]
[WATCHDOG] wdt_pci - use pci_request_region
Use pci_request_region instead of request_region for this pci_driver.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Wim Van Sebroeck [Mon, 31 Aug 2009 13:49:14 +0000 (13:49 +0000)]
[WATCHDOG] ar7_wdt: Fix error handling during probe.
Fix error handling in the probe function.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Tested-by: Florian Fainelli <florian@openwrt.org>
Florian Fainelli [Tue, 21 Jul 2009 10:11:32 +0000 (12:11 +0200)]
[WATCHDOG] ar7_wdt: convert to become a platform driver
This patch converts the ar7_wdt driver to become
a platform driver. The AR7 SoC specific identification
and base register calculation is performed by the board
code, therefore we no longer need to have access to
ar7_chip_id. We also remove the reboot notifier code to
use the platform shutdown method as Wim suggested.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Chris Friesen [Wed, 12 Aug 2009 18:02:46 +0000 (12:02 -0600)]
[WATCHDOG] fix book E watchdog to take WDIOC_SETTIMEOUT arg in seconds
The WDIOC_SETTIMEOUT argument is supposed to be a "seconds" value.
However, the book E wdt currently treats it as a "period" which is
interpreted in a board-specific way.
This patch allows the user to pass in a "seconds" value and the driver
will set the smallest timeout that is at least as large as specified
by the user. It's been tested on e500 hardware and works as
expected.
The patch only modifies the CONFIG_FSL_BOOKE case, the CONFIG_4xx case
is left unmodified as I don't have any hardware to test it on.
Signed-off-by: Chris Friesen <cfriesen@nortel.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Kevin Hilman [Wed, 11 Feb 2009 04:30:37 +0000 (20:30 -0800)]
[WATCHDOG] davinci: use clock framework for timer frequency
Remove use of CLOCK_TICK_RATE in favor of using clock framework
for getting timer frequency.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Linus Walleij [Sun, 9 Aug 2009 22:04:35 +0000 (00:04 +0200)]
[WATCHDOG] Use DIV_ROUND_UP() macro in the coh901327 WDT
I saw Julia Lawalls various commits fixing up the use of rounding
macros and since my already submitted patch was not caught in this
I took it upon myself to fix it up for this driver as well.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Mark Brown [Mon, 27 Jul 2009 13:46:12 +0000 (14:46 +0100)]
[WATCHDOG] Add support for WM831x watchdog
The WM831x series of devices provide a watchdog with configurable
behaviour on timer expiry.
Currently this driver support refreshes via a register or GPIO line and
autonomous refreshes from a hardware source (eg, a clock).
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Wan ZongShun [Mon, 17 Aug 2009 10:00:01 +0000 (18:00 +0800)]
[WATCHDOG] Add watchdog driver for NUC900
Add watchdog device driver for the Nuvoton NUC900 series SoCs.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Denis Turischev [Tue, 21 Jul 2009 10:13:29 +0000 (13:13 +0300)]
[WATCHDOG] add SBC-FITPC2 watchdog driver
Add support for watchdog found on SBC-FITPC2 board.
Signed-off-by: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linus Torvalds [Fri, 18 Sep 2009 04:07:08 +0000 (21:07 -0700)]
Merge branch 'x86-mce-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (21 commits)
x86, mce: Fix compilation with !CONFIG_DEBUG_FS in mce-severity.c
x86, mce: CE in last bank prevents panic by unknown MCE
x86, mce: Fake panic support for MCE testing
x86, mce: Move debugfs mce dir creating to mce.c
x86, mce: Support specifying raise mode for software MCE injection
x86, mce: Support specifying context for software mce injection
x86, mce: fix reporting of Thermal Monitoring mechanism enabled
x86, mce: remove never executed code
x86, mce: add missing __cpuinit tags
x86, mce: fix "mce" boot option handling for CONFIG_X86_NEW_MCE
x86, mce: don't log boot MCEs on Pentium M (model == 13) CPUs
x86: mce: Lower maximum number of banks to architecture limit
x86: mce: macros to compute banks MSRs
x86: mce: Move per bank data in a single datastructure
x86: mce: Move code in mce.c
x86: mce: Rename CONFIG_X86_NEW_MCE to CONFIG_X86_MCE
x86: mce: Remove old i386 machine check code
x86: mce: Update X86_MCE description in x86/Kconfig
x86: mce: Make CONFIG_X86_ANCIENT_MCE dependent on CONFIG_X86_MCE
x86, mce: use atomic_inc_return() instead of add by 1
...
Manually fixed up trivial conflicts:
Documentation/feature-removal-schedule.txt
arch/x86/kernel/cpu/mcheck/mce.c
Linus Torvalds [Fri, 18 Sep 2009 04:00:02 +0000 (21:00 -0700)]
Merge branch 'sched-core-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits)
sched: Fix SD_POWERSAVING_BALANCE|SD_PREFER_LOCAL vs SD_WAKE_AFFINE
sched: Stop buddies from hogging the system
sched: Add new wakeup preemption mode: WAKEUP_RUNNING
sched: Fix TASK_WAKING & loadaverage breakage
sched: Disable wakeup balancing
sched: Rename flags to wake_flags
sched: Clean up the load_idx selection in select_task_rq_fair
sched: Optimize cgroup vs wakeup a bit
sched: x86: Name old_perf in a unique way
sched: Implement a gentler fair-sleepers feature
sched: Add SD_PREFER_LOCAL
sched: Add a few SYNC hint knobs to play with
sched: Fix sync wakeups again
sched: Add WF_FORK
sched: Rename sync arguments
sched: Rename select_task_rq() argument
sched: Feature to disable APERF/MPERF cpu_power
x86: sched: Provide arch implementations using aperf/mperf
x86: Add generic aperf/mperf code
x86: Move APERF/MPERF into a X86_FEATURE
...
Fix up trivial conflict in arch/x86/include/asm/processor.h due to
nearby addition of amd_get_nb_id() declaration from the EDAC merge.
Linus Torvalds [Fri, 18 Sep 2009 03:58:11 +0000 (20:58 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, pat: don't use rb-tree based lookup in reserve_memtype()
x86: Increase MIN_GAP to include randomized stack
Linus Torvalds [Fri, 18 Sep 2009 03:56:37 +0000 (20:56 -0700)]
Merge branch 'tracing-core-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (44 commits)
vsnprintf: remove duplicate comment of vsnprintf
softirq: add BLOCK_IOPOLL to softirq_to_name
oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP
tracing: switch function prints from %pf to %ps
vsprintf: add %ps that is the same as %pS but is like %pf
tracing: Fix minor bugs for __unregister_ftrace_function_probe
tracing: remove notrace from __kprobes annotation
tracing: optimize global_trace_clock cachelines
MAINTAINERS: Update tracing tree details
ftrace: document function and function graph implementation
tracing: make testing syscall events a separate configuration
tracing: remove some unused macros
ftrace: add compile-time check on F_printk()
tracing: fix F_printk() typos
tracing: have TRACE_EVENT macro use __flags to not shadow parameter
tracing: add static to generated TRACE_EVENT functions
ring-buffer: typecast cmpxchg to fix PowerPC warning
tracing: add filter event logic to special, mmiotrace and boot tracers
tracing: remove trace_event_types.h
tracing: use the new trace_entries.h to create format files
...
Linus Torvalds [Fri, 18 Sep 2009 03:54:49 +0000 (20:54 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: Add pata_atp867x driver for Artop/Acard ATP867X controllers
pata_amd: do not filter out valid modes in nv_mode_filter
sata_promise: update reset code
sata_promise: disable hotplug on 1st gen chips
libata: fix spurious WARN_ON_ONCE() on port freeze
ahci: restore pci_intx() handling
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