Commit Graph

4428 Commits

Author SHA1 Message Date
Arnd Bergmann
64ba3dc314 tty: never hold BTM while getting tty_mutex
tty_mutex is never taken with the BTM held, except for
two corner cases that are worked around here.
We give up the BTM before calling tty_release() in the
error path of tty_open().
Similarly, we reorder the locking in ptmx_open()
to get tty_mutex before the BTM.

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>
2010-08-10 13:47:43 -07:00
Arnd Bergmann
ec79d6056d tty: replace BKL with a new tty_lock
As a preparation for replacing the big kernel lock
in the TTY layer, wrap all the callers in new
macros tty_lock, tty_lock_nested and tty_unlock.

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>
2010-08-10 13:47:43 -07:00
Alan Cox
8ce73264b7 tty: Move the vt_tty field from the vc_data into the standard tty_port
This takes all the tty references through the expected interface points so
we can refcount them.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:42 -07:00
Alan Cox
ff917ba4f1 tty: Make vt's have a tty_port
The vt layer isn't safely handling reference counts to tty object on the input
side. Add a tty port structure to the vt layer in order to implement this using
the standard helpers.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:41 -07:00
Alan Cox
e33ac1c10b vc: Locking clean up
The virtual console layer uses the BKL for various things that don't really
need it. Clean them out.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:41 -07:00
Alan Cox
a360fae67b synclink: reworking locking a bit
Use the port mutex and port lock to fix the various races. The locking
still isn't totally consistent but its better than before. Wants switching
to the port helpers.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:41 -07:00
Alan Cox
7479db0701 specialix: Kill the BKL
Use the port mutex instead

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
Alan Cox
7cc34fd028 epca: Kill the big kernel lock
The lock is no longer needed for wait until sent paths so this can go

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
Alan Cox
25c3cdf80c cyclades: Kill off BKL usage
Use the port mutext for config setting, the rest is locked sufficiently
anyway that the BKL makes no odds.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
Alan Cox
f602501d90 synclink: kill the big kernel lock
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>
2010-08-10 13:47:40 -07:00
Alan Cox
417b6e0e14 rocket: kill BKL
We can use the port mutex for this and also for the hangup path so removing
the problematic use of the hangup mutex in this driver. Fix up the locking
on the various port flags while we are at it.

Ultimately this driver needs to be using tty_port_ helpers which would sort
this out far better.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
Alan Cox
ec82db129e isicom: kill off the BKL
As with the others we can use the port mutex to get the needed locking
properties and fix the race with open.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
Alan Cox
bf936f92a7 riscom8: kill use of lock_kernel
The riscom8 board uses lock_kernel to protect bits of the port setting
ioctl logic. We can use the port mutex for this as the logic is internal
and will also lock set versus open (a locking property that has been lost
somewhere along the way)

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
Alan Cox
8a1e803d01 istallion: use bit ops for the board flags
This lets us avoid problems with races on the flag changes

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
Alan Cox
b4eda9cb48 stallion: prune lock_kernel calls
Remove unneeded tty layer lock kernel bits. Relock the needed bits using the
port mutex. The istallion still has brd state races but those are not new
or introduced by the removal of the lock_kernel logic.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
Jesse Barnes
8fd4bd2235 vt/console: try harder to print output when panicing
Jesse's initial patch commit said:

"At panic time (i.e.  when oops_in_progress is set) we should try a bit
harder to update the screen and make sure output gets to the VT, since
some drivers are capable of flipping back to it.

So make sure we try to unblank and update the display if called from a
panic context."

I've enhanced this to add a flag to the vc that console layer can set to
indicate they want this behaviour to occur.  This also adds support to
fbcon for that flag and adds an fb flag for drivers to indicate they want
to use the support.  It enables this for KMS drivers.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: James Simmons <jsimmons@infradead.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:40 -07:00
hyc@symas.com
26df6d1340 tty: Add EXTPROC support for LINEMODE
This patch is against the 2.6.34 source.

Paraphrased from the 1989 BSD patch by David Borman @ cray.com:

     These are the changes needed for the kernel to support
     LINEMODE in the server.

     There is a new bit in the termios local flag word, EXTPROC.
     When this bit is set, several aspects of the terminal driver
     are disabled.  Input line editing, character echo, and mapping
     of signals are all disabled.  This allows the telnetd to turn
     off these functions when in linemode, but still keep track of
     what state the user wants the terminal to be in.

     New ioctl:
         TIOCSIG         Generate a signal to processes in the
                         current process group of the pty.

     There is a new mode for packet driver, the TIOCPKT_IOCTL bit.
     When packet mode is turned on in the pty, and the EXTPROC bit
     is set, then whenever the state of the pty is changed, the
     next read on the master side of the pty will have the TIOCPKT_IOCTL
     bit set.  This allows the process on the server side of the pty
     to know when the state of the terminal has changed; it can then
     issue the appropriate ioctl to retrieve the new state.

Since the original BSD patches accompanied the source code for telnet
I've left that reference here, but obviously the feature is useful for
any remote terminal protocol, including ssh.

The corresponding feature has existed in the BSD tty driver since 1989.
For historical reference, a good copy of the relevant files can be found
here:

http://anonsvn.mit.edu/viewvc/krb5/trunk/src/appl/telnet/?pathrev=17741

Signed-off-by: Howard Chu <hyc@symas.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:39 -07:00
Andy Shevchenko
74c807ce3d vt: clean up the code - use kernel library
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:38 -07:00
Andrea Gelmini
ea5d023615 n_gsm.c: removed duplicated #includes
drivers/char/n_gsm.c: linux/timer.h is included more than once.

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 13:47:38 -07:00
Linus Torvalds
f6cec0ae58 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (59 commits)
  igbvf.txt: Add igbvf Documentation
  igb.txt: Add igb documentation
  e100/e1000*/igb*/ixgb*: Add missing read memory barrier
  ixgbe: fix build error with FCOE_CONFIG without DCB_CONFIG
  netxen: protect tx timeout recovery by rtnl lock
  isdn: gigaset: use after free
  isdn: gigaset: add missing unlock
  solos-pci: Fix race condition in tasklet RX handling
  pkt_sched: Fix sch_sfq vs tcf_bind_filter oops
  net: disable preemption before call smp_processor_id()
  tcp: no md5sig option size check bug
  iwlwifi: fix locking assertions
  iwlwifi: fix TX tracer
  isdn: fix information leak
  net: Fix napi_gro_frags vs netpoll path
  usbnet: remove noisy and hardly useful printk
  rtl8180: avoid potential NULL deref in rtl8180_beacon_work
  ath9k: Remove myself from the MAINTAINERS list
  libertas: scan before assocation if no BSSID was given
  libertas: fix association with some APs by using extended rates
  ...
2010-08-09 21:05:52 -07:00
qiaochong
9e0ba741aa drivers/char/vt.c:vc_do_resize(): local var `end' should be unsigned long
According include/linux/console_struct.h,vc_scr_end is unsigned long.

struct vc_data {
    unsigned short  vc_num;         /* Console number */
    unsigned int    vc_cols;        /* [#] Console size */
    unsigned int    vc_rows;
    unsigned int    vc_size_row;        /* Bytes per row */
    unsigned int    vc_scan_lines;      /* # of scan lines */
    unsigned long   vc_origin;      /* [!] Start of real screen */
    unsigned long   vc_scr_end;     /* [!] End of real screen */
    unsigned long   vc_visible_origin;  /* [!] Top of visible window */
    unsigned int    vc_top, vc_bottom;  /* Scrolling region */
    const struct consw *vc_sw;
    unsigned short  *vc_screenbuf;
...
}

Signed-off-by: qiaochong <qiaochong@loongson.cn>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 20:45:11 -07:00
qiaochong
02f0777a0d drivers/char/vt.c: fix vc->vc_origin on take_over_console()
kernel will die on some platform when switch from vga mode to framebuffer
mode.  The reason of this bug is that bind_con_driver reset vc->vc_origin
to (unsigned long)vc->vc_screenbuf.

On vgacon vc->vc_origin is not releated to vc->vc_screenbuf,if set
vc->vc_origin to vc->vc_screenbuf,kernel will die on vc_do_resize.

static int vc_do_resize(struct tty_struct *tty, struct tty_struct *real_tty,
        struct vc_data *vc, unsigned int cols, unsigned int lines)
{
    unsigned long old_origin, new_origin, new_scr_end, rlth, rrem, err = 0;
    unsigned int old_cols, old_rows, old_row_size, old_screen_size;
    unsigned int new_cols, new_rows, new_row_size, new_screen_size;
    unsigned int end, user;
...
        end = (old_rows > new_rows) ? old_origin +
            (old_row_size * new_rows) :
            vc->vc_scr_end;

...
/*
here for a test from vgacon to framebuffer:
old_origin=0x810814a0,end=0xb00b8fa0,vc->vc_origin=0x810814a0
the code bellow will copy memory from 0x810814a0 to 0xb00b8fa0,
this will cover kernel code,kernel died here.
*/

    while (old_origin < end) {

        scr_memcpyw((unsigned short *) new_origin,
                (unsigned short *) old_origin, rlth);
        if (rrem)
            scr_memsetw((void *)(new_origin + rlth),
                    vc->vc_video_erase_char, rrem);
        old_origin += old_row_size;
        new_origin += new_row_size;
    }

...
}

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: qiaochong <qiaochong@loongson.cn>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 20:45:11 -07:00
Akinobu Mita
b329becfc7 char: add WARN_ON() in misc_deregister()
misc_deregister() returns an error only when it attempts to unregister
the device that is not registered. This is the driver's bug.

Most of the drivers don't check the return value of misc_deregister().
(It is not bad thing because most of kernel *_unregister() API always
succeed and do not return value)

So it is better to indicate the error by WARN_ON() in misc_deregister().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 20:45:06 -07:00
Yinghai Lu
d9e1b6c450 ipmi: fix ACPI detection with regspacing
After the commit that changed ipmi_si detecting sequence from SMBIOS/ACPI
to ACPI/SMBIOS,

| commit 754d453185
| Author: Matthew Garrett <mjg@redhat.com>
| Date:   Wed May 26 14:43:47 2010 -0700
|
|    ipmi: change device discovery order
|
|    The ipmi spec provides an ordering for si discovery.  Change the driver to
|    match, with the exception of preferring smbios to SPMI as HPs (at least)
|    contain accurate information in the former but not the latter.

ipmi_si can not be initialized.

[  138.799739] calling  init_ipmi_devintf+0x0/0x109 @ 1
[  138.805050] ipmi device interface
[  138.818131] initcall init_ipmi_devintf+0x0/0x109 returned 0 after 12797 usecs
[  138.822998] calling  init_ipmi_si+0x0/0xa90 @ 1
[  138.840276] IPMI System Interface driver.
[  138.846137] ipmi_si: probing via ACPI
[  138.849225] ipmi_si 00:09: [io  0x0ca2] regsize 1 spacing 1 irq 0
[  138.864438] ipmi_si: Adding ACPI-specified kcs state machine
[  138.870893] ipmi_si: probing via SMBIOS
[  138.880945] ipmi_si: Adding SMBIOS-specified kcs state machineipmi_si: duplicate interface
[  138.896511] ipmi_si: probing via SPMI
[  138.899861] ipmi_si: Adding SPMI-specified kcs state machineipmi_si: duplicate interface
[  138.917095] ipmi_si: Trying ACPI-specified kcs state machine at i/o address 0xca2, slave address 0x0, irq 0
[  138.928658] ipmi_si: Interface detection failed
[  138.953411] initcall init_ipmi_si+0x0/0xa90 returned 0 after 110847 usecs

in smbios has
DMI/SMBIOS
Handle 0x00C5, DMI type 38, 18 bytes
IPMI Device Information
        Interface Type: KCS (Keyboard Control Style)
        Specification Version: 2.0
        I2C Slave Address: 0x00
        NV Storage Device: Not Present
        Base Address: 0x0000000000000CA2 (I/O)
        Register Spacing: 32-bit Boundaries
in DSDT has
                    Device (BMC)
                    {

                        Name (_HID, EisaId ("IPI0001"))
                        Method (_STA, 0, NotSerialized)
                        {
                            If (LEqual (OSN, Zero))
                            {
                                Return (Zero)
                            }

                            Return (0x0F)
                        }

                        Name (_STR, Unicode ("IPMI_KCS"))
                        Name (_UID, Zero)
                        Name (_CRS, ResourceTemplate ()
                        {
                            IO (Decode16,
                                0x0CA2,             // Range Minimum
                                0x0CA2,             // Range Maximum
                                0x00,               // Alignment
                                0x01,               // Length
                                )
                            IO (Decode16,
                                0x0CA6,             // Range Minimum
                                0x0CA6,             // Range Maximum
                                0x00,               // Alignment
                                0x01,               // Length
                                )
                        })
                        Method (_IFT, 0, NotSerialized)
                        {
                            Return (One)
                        }

                        Method (_SRV, 0, NotSerialized)
                        {
                            Return (0x0200)
                        }
                    }

so the reg spacing should be 4 instead of 1.

Try to calculate regspacing for this kind of system.

Observed on a Sun Fire X4800.  Other OSes work and pass certification.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Matthew Garrett <mjg@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Myron Stowe <myron.stowe@hp.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-09 20:44:53 -07:00
Linus Torvalds
45d7f32c7a Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: check kmalloc() result
  arch/tile: catch up on various minor cleanups.
  arch/tile: avoid erroneous error return for PTRACE_POKEUSR.
  tile: set ARCH_KMALLOC_MINALIGN
  tile: remove homegrown L1_CACHE_ALIGN macro
  arch/tile: Miscellaneous cleanup changes.
  arch/tile: Split the icache flush code off to a generic <arch> header.
  arch/tile: Fix bug in support for atomic64_xx() ops.
  arch/tile: Shrink the tile-opcode files considerably.
  arch/tile: Add driver to enable access to the user dynamic network.
  arch/tile: Enable more sophisticated IRQ model for 32-bit chips.
  Move list types from <linux/list.h> to <linux/types.h>.
  Add wait4() back to the set of <asm-generic/unistd.h> syscalls.
  Revert adding some arch-specific signal syscalls to <linux/syscalls.h>.
  arch/tile: Do not use GFP_KERNEL for dma_alloc_coherent(). Feedback from fujita.tomonori@lab.ntt.co.jp.
  arch/tile: core support for Tilera 32-bit chips.
  Fix up the "generic" unistd.h ABI to be more useful.
2010-08-08 10:10:11 -07:00
Linus Torvalds
1685e633b3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
  pcmcia: avoid buffer overflow in pcmcia_setup_isa_irq
  pcmcia: do not request windows if you don't need to
  pcmcia: insert PCMCIA device resources into resource tree
  pcmcia: export resource information to sysfs
  pcmcia: use struct resource for PCMCIA devices, part 2
  pcmcia: remove memreq_t
  pcmcia: move local definitions out of include/pcmcia/cs.h
  pcmcia: do not use io_req_t when calling pcmcia_request_io()
  pcmcia: do not use io_req_t after call to pcmcia_request_io()
  pcmcia: use struct resource for PCMCIA devices
  pcmcia: clean up cs.h
  pcmcia: use pcmica_{read,write}_config_byte
  pcmcia: remove cs_types.h
  pcmcia: remove unused flag, simplify headers
  pcmcia: remove obsolete CS_EVENT_ definitions
  pcmcia: split up central event handler
  pcmcia: simplify event callback
  pcmcia: remove obsolete ioctl

Conflicts in:
 - drivers/staging/comedi/drivers/*
 - drivers/staging/wlags49_h2/wl_cs.c
due to dev_info_t and whitespace changes
2010-08-06 12:25:06 -07:00
David Howells
31d1d48e19 Fix init ordering of /dev/console vs callers of modprobe
Make /dev/console get initialised before any initialisation routine that
invokes modprobe because if modprobe fails, it's going to want to open
/dev/console, presumably to write an error message to.

The problem with that is that if the /dev/console driver is not yet
initialised, the chardev handler will call request_module() to invoke
modprobe, which will fail, because we never compile /dev/console as a
module.

This will lead to a modprobe loop, showing the following in the kernel
log:

	request_module: runaway loop modprobe char-major-5-1
	request_module: runaway loop modprobe char-major-5-1
	request_module: runaway loop modprobe char-major-5-1
	request_module: runaway loop modprobe char-major-5-1
	request_module: runaway loop modprobe char-major-5-1

This can happen, for example, when the built in md5 module can't find
the built in cryptomgr module (because the latter fails to initialise).
The md5 module comes before the call to tty_init(), presumably because
'crypto' comes before 'drivers' alphabetically.

Fix this by calling tty_init() from chrdev_init().

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-06 09:17:02 -07:00
Chris Metcalf
ab11b48740 Merge branch 'master' into for-linus 2010-08-06 10:37:02 -04:00
Linus Torvalds
fc1caf6eaf Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (204 commits)
  agp: intel-agp: do not use PCI resources before pci_enable_device()
  agp: efficeon-agp: do not use PCI resources before pci_enable_device()
  drm: kill BKL from common code
  drm/kms: Simplify setup of the initial I2C encoder config.
  drm,io-mapping: Specify slot to use for atomic mappings
  drm/radeon/kms: only expose underscan on avivo chips
  drm/radeon: add new pci ids
  drm: Cleanup after failing to create master->unique and dev->name
  drm/radeon: tone down overchatty acpi debug messages.
  drm/radeon/kms: enable underscan option for digital connectors
  drm/radeon/kms: fix calculation of h/v scaling factors
  drm/radeon/kms/igp: sideport is AMD only
  drm/radeon/kms: handle the case of no active displays properly in the bandwidth code
  drm: move ttm global code to core drm
  drm/i915: Clear the Ironlake dithering flags when the pipe doesn't want it.
  drm/radeon/kms: make sure HPD is set to NONE on analog-only connectors
  drm/radeon/kms: make sure rio_mem is valid before unmapping it
  drm/agp/i915: trim stolen space to 32M
  drm/i915: Unset cursor if out-of-bounds upon mode change (v4)
  drm/i915: Unreference object not handle on creation
  ...
2010-08-05 16:02:01 -07:00
Linus Torvalds
9779714c8a Merge branch 'kms-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'kms-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  kgdb,docs: Update the kgdb docs to include kms
  drm_fb_helper: Preserve capability to use atomic kms
  i915: when kgdb is active display compression should be off
  drm/i915: use new fb debug hooks
  drm: add KGDB/KDB support
  fb: add hooks to handle KDB enter/exit
  kgdboc: Add call backs to allow kernel mode switching
  vt,console,kdb: automatically set kdb LINES variable
  vt,console,kdb: implement atomic console enter/leave functions
2010-08-05 16:00:44 -07:00
Linus Torvalds
03c0c29aff Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (63 commits)
  of/platform: Register of_platform_drivers with an "of:" prefix
  of/address: Clean up function declarations
  of/spi: call of_register_spi_devices() from spi core code
  of: Provide default of_node_to_nid() implementation.
  of/device: Make of_device_make_bus_id() usable by other code.
  of/irq: Fix endian issues in parsing interrupt specifiers
  of: Fix phandle endian issues
  of/flattree: fix of_flat_dt_is_compatible() to match the full compatible string
  of: remove of_default_bus_ids
  of: make of_find_device_by_node generic
  microblaze: remove references to of_device and to_of_device
  sparc: remove references to of_device and to_of_device
  powerpc: remove references to of_device and to_of_device
  of/device: Replace of_device with platform_device in includes and core code
  of/device: Protect against binding of_platform_drivers to non-OF devices
  of: remove asm/of_device.h
  of: remove asm/of_platform.h
  of/platform: remove all of_bus_type and of_platform_bus_type references
  of: Merge of_platform_bus_type with platform_bus_type
  drivercore/of: Add OF style matching to platform bus
  ...

Fix up trivial conflicts in arch/microblaze/kernel/Makefile due to just
some obj-y removals by the devicetree branch, while the microblaze
updates added a new file.
2010-08-05 15:57:35 -07:00
Linus Torvalds
cdd854bc42 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (79 commits)
  powerpc/8xx: Add support for the MPC8xx based boards from TQC
  powerpc/85xx: Introduce support for the Freescale P1022DS reference board
  powerpc/85xx: Adding DTS for the STx GP3-SSA MPC8555 board
  powerpc/85xx: Change deprecated binding for 85xx-based boards
  powerpc/tqm85xx: add a quirk for ti1520 PCMCIA bridge
  powerpc/tqm85xx: update PCI interrupt-map attribute
  powerpc/mpc8308rdb: support for MPC8308RDB board from Freescale
  powerpc/fsl_pci: add quirk for mpc8308 pcie bridge
  powerpc/85xx: Cleanup QE initialization for MPC85xxMDS boards
  powerpc/85xx: Fix booting for P1021MDS boards
  powerpc/85xx: Fix SWIOTLB initalization for MPC85xxMDS boards
  powerpc/85xx: kexec for SMP 85xx BookE systems
  powerpc/5200/i2c: improve i2c bus error recovery
  of/xilinxfb: update tft compatible versions
  powerpc/fsl-diu-fb: Support setting display mode using EDID
  powerpc/5121: doc/dts-bindings: update doc of FSL DIU bindings
  powerpc/5121: shared DIU framebuffer support
  powerpc/5121: move fsl-diu-fb.h to include/linux
  powerpc/5121: fsl-diu-fb: fix issue with re-enabling DIU area descriptor
  powerpc/512x: add clock structure for Video-IN (VIU) unit
  ...
2010-08-05 09:03:46 -07:00
Jason Wessel
81d4450732 vt,console,kdb: automatically set kdb LINES variable
The kernel console interface stores the number of lines it is
configured to use. The kdb debugger can greatly benefit by knowing how
many lines there are on the console for the pager functionality
without having the end user compile in the setting or have to
repeatedly change it at run time.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: David Airlie <airlied@linux.ie>
CC: Andrew Morton <akpm@linux-foundation.org>
2010-08-05 09:22:30 -05:00
Jesse Barnes
b45cfba4e9 vt,console,kdb: implement atomic console enter/leave functions
These functions allow the kernel debugger to save and restore the
state of the system console.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
CC: David Airlie <airlied@linux.ie>
CC: Andrew Morton <akpm@linux-foundation.org>
2010-08-05 09:22:30 -05:00
stephen hemminger
d7100da026 ppp: make channel_ops const
The PPP channel ops structure should be const.
Cleanup the declarations to use standard C99 format.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04 21:53:17 -07:00
Kulikov Vasiliy
96576a9e1a agp: intel-agp: do not use PCI resources before pci_enable_device()
IRQ and resource[] may not have correct values until
after PCI hotplug setup occurs at pci_enable_device() time.

The semantic match that finds this problem is as follows:

// <smpl>
@@
identifier x;
identifier request ~= "pci_request.*|pci_resource.*";
@@

(
* x->irq
|
* x->resource
|
* request(x, ...)
)
 ...
*pci_enable_device(x)
// </smpl>

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-05 12:28:25 +10:00
Kulikov Vasiliy
46cfc58a77 agp: efficeon-agp: do not use PCI resources before pci_enable_device()
IRQ and resource[] may not have correct values until
after PCI hotplug setup occurs at pci_enable_device() time.

The semantic match that finds this problem is as follows:

// <smpl>
@@
identifier x;
identifier request ~= "pci_request.*|pci_resource.*";
@@

(
* x->irq
|
* x->resource
|
* request(x, ...)
)
 ...
*pci_enable_device(x)
// </smpl>

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-05 12:28:21 +10:00
Linus Torvalds
3cfc2c42c1 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (48 commits)
  Documentation: update broken web addresses.
  fix comment typo "choosed" -> "chosen"
  hostap:hostap_hw.c Fix typo in comment
  Fix spelling contorller -> controller in comments
  Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault
  fs/Kconfig: Fix typo Userpace -> Userspace
  Removing dead MACH_U300_BS26
  drivers/infiniband: Remove unnecessary casts of private_data
  fs/ocfs2: Remove unnecessary casts of private_data
  libfc: use ARRAY_SIZE
  scsi: bfa: use ARRAY_SIZE
  drm: i915: use ARRAY_SIZE
  drm: drm_edid: use ARRAY_SIZE
  synclink: use ARRAY_SIZE
  block: cciss: use ARRAY_SIZE
  comment typo fixes: charater => character
  fix comment typos concerning "challenge"
  arm: plat-spear: fix typo in kerneldoc
  reiserfs: typo comment fix
  update email address
  ...
2010-08-04 15:31:02 -07:00
Linus Torvalds
b7c8e55db7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (39 commits)
  random: Reorder struct entropy_store to remove padding on 64bits
  padata: update API documentation
  padata: Remove padata_get_cpumask
  crypto: pcrypt - Update pcrypt cpumask according to the padata cpumask notifier
  crypto: pcrypt - Rename pcrypt_instance
  padata: Pass the padata cpumasks to the cpumask_change_notifier chain
  padata: Rearrange set_cpumask functions
  padata: Rename padata_alloc functions
  crypto: pcrypt - Dont calulate a callback cpu on empty callback cpumask
  padata: Check for valid cpumasks
  padata: Allocate cpumask dependend recources in any case
  padata: Fix cpu index counting
  crypto: geode_aes - Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used)
  pcrypt: Added sysfs interface to pcrypt
  padata: Added sysfs primitives to padata subsystem
  padata: Make two separate cpumasks
  padata: update documentation
  padata: simplify serialization mechanism
  padata: make padata_do_parallel to return zero on success
  padata: Handle empty padata cpumasks
  ...
2010-08-04 15:23:14 -07:00
Linus Torvalds
fe445c6e2c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
  Input: adp5588-keypad - fix NULL dereference in adp5588_gpio_add()
  Input: cy8ctmg110 - capacitive touchscreen support
  Input: keyboard - also match braille-only keyboards
  Input: adp5588-keys - export unused GPIO pins
  Input: xpad - add product ID for Hori Fighting Stick EX2
  Input: adxl34x - fix leak and use after free
  Input: samsung-keypad - Add samsung keypad driver
  Input: i8042 - reset keyboard controller wehen resuming from S2R
  Input: synaptics - set min/max for finger width
  Input: synaptics - only report width on hardware that supports it
  Input: evdev - signal that device is writable in evdev_poll()
  Input: mousedev - signal that device is writable in mousedev_poll()
  Input: change input handlers to use bool when possible
  Input: document the MT event slot protocol
  Input: introduce MT event slots
  Input: usbtouchscreen - implement reset_resume
  Input: usbtouchscreen - implement runtime power management
  Input: usbtouchscreen - implement basic suspend/resume
  Input: Add ATMEL QT602240 touchscreen driver
  Input: fix signedness warning in input_set_keycode()
  ...
2010-08-04 10:41:52 -07:00
Jiri Kosina
d790d4d583 Merge branch 'master' into for-next 2010-08-04 15:14:38 +02:00
Benjamin Herrenschmidt
412a4ac5e9 Merge commit 'gcl/next' into next 2010-08-04 10:26:03 +10:00
Dominik Brodowski
0ca724d37a pcmcia: use struct resource for PCMCIA devices, part 2
Use struct resource * also for iomem resources.

CC: linux-mtd@lists.infradead.org
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-08-03 09:04:16 +02:00
Dominik Brodowski
b5cb259e7f pcmcia: remove memreq_t
Page already had to be set to 0; Offset can easily be passed as
parameter to pcmcia_map_mem_page.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: linux-bluetooth@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-08-03 09:04:14 +02:00
Dominik Brodowski
90abdc3b97 pcmcia: do not use io_req_t when calling pcmcia_request_io()
Instead of io_req_t, drivers are now requested to fill out
struct pcmcia_device *p_dev->resource[0,1] for up to two ioport
ranges. After a call to pcmcia_request_io(), the ports found there
are reserved, after calling pcmcia_request_configuration(), they may
be used.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Michael Buesch <mb@bu3sch.de>
Acked-by: Marcel Holtmann <marcel@holtmann.org> (for drivers/bluetooth/)
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-08-03 09:04:11 +02:00
Dominik Brodowski
9a017a9103 pcmcia: do not use io_req_t after call to pcmcia_request_io()
After pcmcia_request_io(), do not make use of the values stored in
io_req_t, but instead use those found in struct pcmcia_device->resource[].

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
Acked-by: Marcel Holtmann <marcel@holtmann.org> (for drivers/bluetooth/)
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-08-03 09:03:59 +02:00
Dmitry Torokhov
d01d0756f7 Merge branch 'next' into for-linus 2010-08-02 18:35:17 -07:00
Jesse Barnes
d1d6ca73ef drm/agp/i915: trim stolen space to 32M
Some BIOSes will claim a large chunk of stolen space.  Unless we
reclaim it, our aperture for remapping buffer objects will be
constrained.  So clamp the stolen space to 32M and ignore the rest.

Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15469 among others.

Adding the ignored stolen memory back into the general pool using the
memory hotplug code is left as an exercise for the reader.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Simon Farnsworth <simon.farnsworth@onelan.com>
Tested-by: Artem S. Tashkinov <t.artem@mailcity.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-08-01 19:58:57 -07:00
Chris Wilson
831cd44535 agp/intel: Destroy the scatterlist on allocation failure
A side-effect of being able to use custom page allocations with the
sg_table is that it cannot reap the partially constructed scatterlist if
fails to allocate a page. So we need to call sg_free_table() ourselves
if sg_alloc_table() fails.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-08-01 19:35:14 -07:00
Eric Anholt
2bd34f6ca8 Merge remote branch 'origin/master' into drm-intel-next
This resolves the conflict in the EDP code, which has been rather
popular to hack on recently.

Conflicts:
	drivers/gpu/drm/i915/intel_dp.c
2010-08-01 19:34:47 -07:00