GitHub/mt8127/android_kernel_alcatel_ttab.git
16 years agoV4L/DVB (7137): tuner: return number of instances remaining after hybrid_tuner_releas...
Michael Krufky [Tue, 22 Apr 2008 17:42:00 +0000 (14:42 -0300)]
V4L/DVB (7137): tuner: return number of instances remaining after hybrid_tuner_release_state

Assign the number of instances remaining as the return value of
hybrid_tuner_release_state, in case there is any extra cleanup that
the tuner driver needs to do after an instance has been destroyed.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7136): tda18271: use hybrid_tuner_request_state to manage tuner instances
Michael Krufky [Tue, 22 Apr 2008 17:41:54 +0000 (14:41 -0300)]
V4L/DVB (7136): tda18271: use hybrid_tuner_request_state to manage tuner instances

Convert tda18271 to use the new hybrid_tuner_request_state and
hybrid_tuner_release_state macros to manage state sharing between
hybrid tuner instances.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7135): remove PREFIX from users of tuner_foo printk macros
Michael Krufky [Tue, 22 Apr 2008 17:41:53 +0000 (14:41 -0300)]
V4L/DVB (7135): remove PREFIX from users of tuner_foo printk macros

Store a pointer to the device name in the name field of
struct tuner_i2c_props, so that we can remove the
printk macros defined in tuner-i2c.h

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7134): tuner: create a macro for sharing state between hybrid tuner instances
Michael Krufky [Tue, 22 Apr 2008 17:41:52 +0000 (14:41 -0300)]
V4L/DVB (7134): tuner: create a macro for sharing state between hybrid tuner instances

Create a macro implementing a standard method to share state amongst
multiple instances of a hybrid tuner object.

Also, prepare tuner_foo printk macros for the removal of PREFIX

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7130): tuner: remove emacs c-basic-offset override block
Michael Krufky [Tue, 22 Apr 2008 17:41:52 +0000 (14:41 -0300)]
V4L/DVB (7130): tuner: remove emacs c-basic-offset override block

I'd prefer to leave this here, but official CodingStyle
doesn't care what I think :-/

Remove the emacs format override block to comply with Kernel CodingStyle.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7129): tuner-simple: move device-specific code into three separate functions
Michael Krufky [Tue, 22 Apr 2008 17:41:51 +0000 (14:41 -0300)]
V4L/DVB (7129): tuner-simple: move device-specific code into three separate functions

Move the switch..case blocks with device-specific code from functions
simple_set_tv_freq and simple_set_radio_freq

...into three new functions:
simple_std_setup, simple_post_tune and simple_radio_bandswitch

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7128): tuner: properly handle failed calls to simple_tuner_attach
Michael Krufky [Tue, 22 Apr 2008 17:41:51 +0000 (14:41 -0300)]
V4L/DVB (7128): tuner: properly handle failed calls to simple_tuner_attach

If simple_tuner_attach fails, set t->type to TUNER_ABSENT,
set t->mode_mask to T_UNINITIALIZED, and exit the set_type function.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7127): tuner: remove dependency of tuner-core on tuner-types
Michael Krufky [Tue, 22 Apr 2008 17:41:51 +0000 (14:41 -0300)]
V4L/DVB (7127): tuner: remove dependency of tuner-core on tuner-types

This patch fully removes the dependency of tuner-core on
tuner-types.

There is no longer any need to pass struct tunertype in attach-time
config structure - instead pass the tuner type ID.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7126): tuner: move tuner type ID check to simple_tuner_attach
Michael Krufky [Tue, 22 Apr 2008 17:41:50 +0000 (14:41 -0300)]
V4L/DVB (7126): tuner: move tuner type ID check to simple_tuner_attach

Move tuner type ID check from tuner-core::set_type to simple_tuner_attach.

Since tuner-core forwards all attach requests to tuner-simple as the
default case, unless a specific attach function is specified in
set_type, this change is an appropriate cleanup.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7125): tuner: build tuner-types independently of tuner-core
Michael Krufky [Tue, 22 Apr 2008 17:41:49 +0000 (14:41 -0300)]
V4L/DVB (7125): tuner: build tuner-types independently of tuner-core

tuner-types is needed for tuner-simple, and does not need to be bound
to tuner-core.  Any caller of tuner-simple, including tuner-core, needs
to pass a structure from tuner-types into tuner-simple at attach-time.

Export the two needed symbols from tuner-types for now, so that card-level
drivers can attach tuner-simple for hybrid dvb_frontend devices.  We will
remove this dependency altogether as tuner refactoring phase 3 progresses.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7124): tuner-simple: display frequency in MHz
Michael Krufky [Tue, 22 Apr 2008 17:41:49 +0000 (14:41 -0300)]
V4L/DVB (7124): tuner-simple: display frequency in MHz

fix debug in simple_config_lookup to display frequency in MHz

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7123): tuner-simple: create separate t_params and ranges lookup functions
Michael Krufky [Tue, 22 Apr 2008 17:41:48 +0000 (14:41 -0300)]
V4L/DVB (7123): tuner-simple: create separate t_params and ranges lookup functions

Move some reuseable code out of simple_set_tv_freq into separate functions.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7094): static memory
Douglas Schilling Landgraf [Tue, 22 Apr 2008 17:41:48 +0000 (14:41 -0300)]
V4L/DVB (7094):  static memory

- Static memory is always initialized with 0.
- Replaced in some cases C99 comments for /* */

Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7114): tuner-xc2028.c: make a function static
Adrian Bunk [Tue, 22 Apr 2008 17:41:45 +0000 (14:41 -0300)]
V4L/DVB (7114): tuner-xc2028.c: make a function static

dump_firm_type_and_int_freq() can become static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7107): frontends/xc5000.c: make a struct static
Adrian Bunk [Tue, 22 Apr 2008 17:41:45 +0000 (14:41 -0300)]
V4L/DVB (7107): frontends/xc5000.c: make a struct static

struct XC5000_Standard[] can become static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Reviewed-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7105): ivtv-yuv.c: make 3 functions static
Adrian Bunk [Tue, 22 Apr 2008 17:41:44 +0000 (14:41 -0300)]
V4L/DVB (7105): ivtv-yuv.c: make 3 functions static

This patch makes the following needlessly global functions static:
- ivtv_yuv_next_free()
- ivtv_yuv_setup_frame()
- ivtv_yuv_udma_frame()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoV4L/DVB (7087): tuner-simple: whitespace / comments / codingstyle cleanups
Michael Krufky [Tue, 22 Apr 2008 17:41:44 +0000 (14:41 -0300)]
V4L/DVB (7087): tuner-simple: whitespace / comments / codingstyle cleanups

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
16 years agoslab_err: Pass parameters correctly to slab_bug
Christoph Lameter [Wed, 23 Apr 2008 19:28:01 +0000 (12:28 -0700)]
slab_err: Pass parameters correctly to slab_bug

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Wed, 23 Apr 2008 19:24:19 +0000 (12:24 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  [patch 7/7] vfs: mountinfo: show dominating group id
  [patch 6/7] vfs: mountinfo: add /proc/<pid>/mountinfo
  [patch 5/7] vfs: mountinfo: allow using process root
  [patch 4/7] vfs: mountinfo: add mount peer group ID
  [patch 3/7] vfs: mountinfo: add mount ID
  [patch 2/7] vfs: mountinfo: add seq_file_root()
  [patch 1/7] vfs: mountinfo: add dentry_path()
  [PATCH] remove unused label in xattr.c (noise from ro-bind)

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Wed, 23 Apr 2008 19:23:45 +0000 (12:23 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  iwlwifi: Fix built-in compilation of iwlcore
  net: Unexport move_addr_to_{kernel,user}
  rt2x00: Select LEDS_CLASS.
  iwlwifi: Select LEDS_CLASS.
  leds: Do not guard NEW_LEDS with HAS_IOMEM
  [IPSEC]: Fix catch-22 with algorithm IDs above 31
  time: Export set_normalized_timespec.
  tcp: Make use of before macro in tcp_input.c
  hamradio: Remove unneeded and deprecated cli()/sti() calls in dmascc.c
  [NETNS]: Remove empty ->init callback.
  [DCCP]: Convert do_gettimeofday() to getnstimeofday().
  [NETNS]: Don't initialize err variable twice.
  [NETNS]: The ip6_fib_timer can work with garbage on net namespace stop.
  [IPV4]: Convert do_gettimeofday() to getnstimeofday().
  [IPV4]: Make icmp_sk_init() static.
  [IPV6]: Make struct ip6_prohibit_entry_template static.
  tcp: Trivial fix to correct function name in a comment in net/ipv4/tcp.c
  [NET]: Expose netdevice dev_id through sysfs
  skbuff: fix missing kernel-doc notation
  [ROSE]: Fix soft lockup wrt. rose_node_list_lock

16 years agopnpacpi: fix potential corruption on "pnpacpi: exceeded the max number of IRQ resourc...
Len Brown [Wed, 23 Apr 2008 04:09:13 +0000 (00:09 -0400)]
pnpacpi: fix potential corruption on "pnpacpi: exceeded the max number of IRQ resources 2"

PNP_MAX_IRQ is 2
If a device invokes pnpacpi_parse_allocated_irqresource() 0, 1, or 2 times, we are happy.
The 3rd time, we will fail and print "pnpacpi: exceeded the max number of IRQ resources: 2"
The 4th and subsequent calls (if this ever happened) would silently scribble on
irq_resource[2], which doesn't actualy exist.

Found-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoiwlwifi: Fix built-in compilation of iwlcore
Tomas Winkler [Wed, 23 Apr 2008 10:48:57 +0000 (03:48 -0700)]
iwlwifi: Fix built-in compilation of iwlcore

This patch fixes problem in Makefile that prevented
built-in compilation of iwlcore

Commit that caused this problem: eadd3c4b ("iwlwifi: make Makefile
more concise")

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Yi Zhu <yi.zhu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonet: Unexport move_addr_to_{kernel,user}
Adrian Bunk [Wed, 23 Apr 2008 10:37:49 +0000 (03:37 -0700)]
net: Unexport move_addr_to_{kernel,user}

After the removal of the Solaris binary emulation the exports of
move_addr_to_{kernel,user} are no longer used.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agort2x00: Select LEDS_CLASS.
David S. Miller [Wed, 23 Apr 2008 10:34:50 +0000 (03:34 -0700)]
rt2x00: Select LEDS_CLASS.

Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoiwlwifi: Select LEDS_CLASS.
David S. Miller [Wed, 23 Apr 2008 10:34:31 +0000 (03:34 -0700)]
iwlwifi: Select LEDS_CLASS.

Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoleds: Do not guard NEW_LEDS with HAS_IOMEM
David S. Miller [Wed, 23 Apr 2008 10:33:32 +0000 (03:33 -0700)]
leds: Do not guard NEW_LEDS with HAS_IOMEM

The LEDS infrastructure itself does not require anything
that a platform dependant upon HAS_IOMEM.

The individual drivers do, but they are properly guarded
with the necessary platform dependencies.

One can even imagine a hypervisor based LED driver that
a platform without HAS_IOMEM might have.

Signed-off-by: David S. Miller <davem@davemloft.net>
16 years ago[patch 7/7] vfs: mountinfo: show dominating group id
Miklos Szeredi [Thu, 27 Mar 2008 12:06:26 +0000 (13:06 +0100)]
[patch 7/7] vfs: mountinfo: show dominating group id

Show peer group ID of nearest dominating group that has intersection
with the mount's namespace.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[patch 6/7] vfs: mountinfo: add /proc/<pid>/mountinfo
Ram Pai [Thu, 27 Mar 2008 12:06:25 +0000 (13:06 +0100)]
[patch 6/7] vfs: mountinfo: add /proc/<pid>/mountinfo

[mszeredi@suse.cz] rewrite and split big patch into managable chunks

/proc/mounts in its current form lacks important information:

 - propagation state
 - root of mount for bind mounts
 - the st_dev value used within the filesystem
 - identifier for each mount and it's parent

It also suffers from the following problems:

 - not easily extendable
 - ambiguity of mountpoints within a chrooted environment
 - doesn't distinguish between filesystem dependent and independent options
 - doesn't distinguish between per mount and per super block options

This patch introduces /proc/<pid>/mountinfo which attempts to address
all these deficiencies.

Code shared between /proc/<pid>/mounts and /proc/<pid>/mountinfo is
extracted into separate functions.

Thanks to Al Viro for the help in getting the design right.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[patch 5/7] vfs: mountinfo: allow using process root
Miklos Szeredi [Thu, 27 Mar 2008 12:06:24 +0000 (13:06 +0100)]
[patch 5/7] vfs: mountinfo: allow using process root

Allow /proc/<pid>/mountinfo to use the root of <pid> to calculate
mountpoints.

 - move definition of 'struct proc_mounts' to <linux/mnt_namespace.h>
 - add the process's namespace and root to this structure
 - pass a pointer to 'struct proc_mounts' into seq_operations

In addition the following cleanups are made:

 - use a common open function for /proc/<pid>/{mounts,mountstat}
 - surround namespace.c part of these proc files with #ifdef CONFIG_PROC_FS
 - make the seq_operations structures const

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[patch 4/7] vfs: mountinfo: add mount peer group ID
Miklos Szeredi [Thu, 27 Mar 2008 12:06:23 +0000 (13:06 +0100)]
[patch 4/7] vfs: mountinfo: add mount peer group ID

Add a unique ID to each peer group using the IDR infrastructure.  The
identifiers are reused after the peer group dissolves.

The IDR structures are protected by holding namepspace_sem for write
while allocating or deallocating IDs.

IDs are allocated when a previously unshared vfsmount becomes the
first member of a peer group.  When a new member is added to an
existing group, the ID is copied from one of the old members.

IDs are freed when the last member of a peer group is unshared.

Setting the MNT_SHARED flag on members of a subtree is done as a
separate step, after all the IDs have been allocated.  This way an
allocation failure can be cleaned up easilty, without affecting the
propagation state.

Based on design sketch by Al Viro.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[patch 3/7] vfs: mountinfo: add mount ID
Miklos Szeredi [Wed, 26 Mar 2008 21:11:34 +0000 (22:11 +0100)]
[patch 3/7] vfs: mountinfo: add mount ID

Add a unique ID to each vfsmount using the IDR infrastructure.  The
identifiers are reused after the vfsmount is freed.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[patch 2/7] vfs: mountinfo: add seq_file_root()
Miklos Szeredi [Thu, 27 Mar 2008 12:06:21 +0000 (13:06 +0100)]
[patch 2/7] vfs: mountinfo: add seq_file_root()

Add a new function:

  seq_file_root()

This is similar to seq_path(), but calculates the path relative to the
given root, instead of current->fs->root.  If the path was unreachable
from root, then modify the root parameter to reflect this.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[patch 1/7] vfs: mountinfo: add dentry_path()
Ram Pai [Thu, 27 Mar 2008 12:06:20 +0000 (13:06 +0100)]
[patch 1/7] vfs: mountinfo: add dentry_path()

[mszeredi@suse.cz] split big patch into managable chunks

Add the following functions:

  dentry_path()
  seq_dentry()

These are similar to d_path() and seq_path().  But instead of
calculating the path within a mount namespace, they calculate the path
from the root of the filesystem to a given dentry, ignoring mounts
completely.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[PATCH] remove unused label in xattr.c (noise from ro-bind)
Al Viro [Wed, 23 Apr 2008 04:04:04 +0000 (00:04 -0400)]
[PATCH] remove unused label in xattr.c (noise from ro-bind)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Wed, 23 Apr 2008 01:27:56 +0000 (18:27 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  [PATCH] get rid of __exit_files(), __exit_fs() and __put_fs_struct()
  [PATCH] proc_readfd_common() race fix
  [PATCH] double-free of inode on alloc_file() failure exit in create_write_pipe()
  [PATCH] teach seq_file to discard entries
  [PATCH] umount_tree() will unhash everything itself
  [PATCH] get rid of more nameidata passing in namespace.c
  [PATCH] switch a bunch of LSM hooks from nameidata to path
  [PATCH] lock exclusively in collect_mounts() and drop_collected_mounts()
  [PATCH] move a bunch of declarations to fs/internal.h

16 years agoFix cardbus resource allocation
Linus Torvalds [Wed, 23 Apr 2008 01:16:30 +0000 (18:16 -0700)]
Fix cardbus resource allocation

Commit 884525655d07fdee9245716b998ecdc45cdd8007 ("PCI: clean up resource
alignment management") didn't set the alignment information for the
cardbus window resources, causing their subsequent allocations to fail
miserably with a message like

  yenta_cardbus 0000:15:00.0: device not available because of BAR 7 [100:1ff] collisions
  yenta_cardbus: probe of 0000:15:00.0 failed with error -16

or similar.

This fixes it and clarifies the code a bit too (we used to have to use
the insane PCI bridge alignment logic that put the alignment in the
"start" field, this makes it use the slightly easier-to-understand
size-based alignment, and allows us to set the resource start to zero
until it gets allocated).

Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agobus_remove_device: be more careful about incomplete initialization
Rafael J. Wysocki [Tue, 22 Apr 2008 20:57:50 +0000 (22:57 +0200)]
bus_remove_device: be more careful about incomplete initialization

Prevent bus_remove_device() from crashing if dev->knode_bus has not been
initialized before it's called.

This can happen if the device_add() ended up breaking out early due to
an error, for example.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoRelax check on adding children of suspended devices
Rafael J. Wysocki [Tue, 22 Apr 2008 22:48:23 +0000 (00:48 +0200)]
Relax check on adding children of suspended devices

Do not refuse to actually register children of suspended devices,
but still warn about attempts to do that.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years ago[PATCH] get rid of __exit_files(), __exit_fs() and __put_fs_struct()
Al Viro [Tue, 22 Apr 2008 09:35:42 +0000 (05:35 -0400)]
[PATCH] get rid of __exit_files(), __exit_fs() and __put_fs_struct()

The only reason to have separated __...() for those was to keep them inlined
for local users in exit.c.  Since Alexey removed the inline on those, there's
no reason whatsoever to keep them around; just collapse with normal variants.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[PATCH] proc_readfd_common() race fix
Al Viro [Tue, 22 Apr 2008 05:32:44 +0000 (01:32 -0400)]
[PATCH] proc_readfd_common() race fix

Since we drop the rcu_read_lock inside the loop, we can't assume
that files->fdt will remain unchanged (and not freed) between
iterations.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years ago[PATCH] double-free of inode on alloc_file() failure exit in create_write_pipe()
Al Viro [Tue, 22 Apr 2008 23:51:27 +0000 (19:51 -0400)]
[PATCH] double-free of inode on alloc_file() failure exit in create_write_pipe()

Duh...  Fortunately, the bug is quite recent (post-2.6.25) and, embarrassingly,
mine ;-/

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
16 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Tue, 22 Apr 2008 23:47:54 +0000 (16:47 -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] run drivers/misc/sgi-xp through scripts/checkpatch.pl
  [IA64] run rest drivers/misc/sgi-xp through scripts/Lindent
  [IA64] run some drivers/misc/sgi-xp through scripts/Lindent
  [IA64] move XP and XPC to drivers/misc/sgi-xp
  [IA64] minor irq handler cleanups
  [IA64] simplify notify hooks in mca.c
  [IA64] do notify DIE_MCA_MONARCH_PROCESS for each monarchs
  [IA64] disable interrupts on exit of ia64_trace_syscall

16 years agofs: use loff_t type instead of long long
David Sterba [Tue, 22 Apr 2008 13:09:22 +0000 (15:09 +0200)]
fs: use loff_t type instead of long long

Use offset type consistently.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Tue, 22 Apr 2008 22:15:48 +0000 (15:15 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/selinux-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
  SELinux fixups needed for preemptable RCU from -rt
  SELinux: no BUG_ON(!ss_initialized) in selinux_clone_mnt_opts

16 years ago[IA64] run drivers/misc/sgi-xp through scripts/checkpatch.pl
Dean Nelson [Tue, 22 Apr 2008 19:50:17 +0000 (14:50 -0500)]
[IA64] run drivers/misc/sgi-xp through scripts/checkpatch.pl

Addressed issues raised by scripts/checkpatch.pl. Removed unnecessary curly
braces. Eliminated uses of volatiles and use of kernel_thread() and daemonize().

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] run rest drivers/misc/sgi-xp through scripts/Lindent
Dean Nelson [Tue, 22 Apr 2008 19:48:55 +0000 (14:48 -0500)]
[IA64] run rest drivers/misc/sgi-xp through scripts/Lindent

Ran patches through scripts/Lindent (part 2).

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] run some drivers/misc/sgi-xp through scripts/Lindent
Dean Nelson [Tue, 22 Apr 2008 19:48:01 +0000 (14:48 -0500)]
[IA64] run some drivers/misc/sgi-xp through scripts/Lindent

Ran patches through scripts/Lindent (part 1).

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] move XP and XPC to drivers/misc/sgi-xp
Dean Nelson [Tue, 22 Apr 2008 19:46:56 +0000 (14:46 -0500)]
[IA64] move XP and XPC to drivers/misc/sgi-xp

Move XPC and XPNET from arch/ia64/sn/kernel to drivers/misc/sgi-xp.

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years agoMerge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
Linus Torvalds [Tue, 22 Apr 2008 20:59:30 +0000 (13:59 -0700)]
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: Fix platform driver hotplug/coldplug
  i2c: New driver for the SuperH Mobile I2C bus controller
  i2c/scx200_acb: Don't use 0 as NULL pointer
  i2c-bfin-twi: Fix mismatch in add timer and delete timer
  i2c-bfin-twi: Just let i2c-bfin-twi driver depends on BLACKFIN
  i2c-bfin-twi: Use simpler comment headers and strip out information that is maintained in the scm's log
  i2c-bfin-twi: Cleanup driver descriptions, versions and some module useful information
  i2c-bfin-twi: Add missing pin mux operation
  i2c-bfin-twi: Add platform_resource interface to support multi-port TWI controllers
  i2c-bfin-twi: Add repeat start feature to avoid break of a bundle of i2c master xfer operation
  i2c: Remove trailing whitespaces in busses/Kconfig
  i2c: Replace remaining __FUNCTION__ occurrences
  i2c: Renesas SH7760 I2C master driver
  i2c-dev: Split i2cdev_ioctl
  i2c-ibm_iic: Support building as an of_platform driver
  i2c-ibm_iic: Change the log levels
  i2c: Add platform driver on top of the new pca-algorithm
  i2c-algo-pca: Extend for future drivers
  i2c-algo-pca: Remove trailing whitespaces and unnecessary UTF
  i2c: Remove the algorithm drivers from the config menu

16 years agokernel-doc: fix sched.c missing parameter
Randy Dunlap [Tue, 22 Apr 2008 17:07:22 +0000 (10:07 -0700)]
kernel-doc: fix sched.c missing parameter

Add missing kernel-doc in kernel/sched.c:

Warning(linux-2.6.25-git3//kernel/sched.c:7044): No description found for parameter 'span'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
Linus Torvalds [Tue, 22 Apr 2008 20:44:23 +0000 (13:44 -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: linux/{dlm,dlm_device}.h: cleanup for userspace
  dlm: common max length definitions
  dlm: move plock code from gfs2
  dlm: recover nodes that are removed and re-added
  dlm: save master info after failed no-queue request
  dlm: make dlm_print_rsb() static
  dlm: match signedness between dlm_config_info and cluster_set

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Tue, 22 Apr 2008 20:43:46 +0000 (13:43 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Suppress hidinput for Samsung IR control
  HID: remove 60x GTCO devices from blacklist
  HID: export headers properly
  HID: WiseGroup 866 Dual Joypad needs output reports quirk
  HID: ThrustMaster FF driver is no longer experimental
  HID: Logitech diNovo Mini pad support
  HID: fix race between open() and disconnect() in usbhid
  HID: make hid_input_field and usbhid_modify_dquirk static
  HID: pass numbered reports properly to hidraw
  HID: fix misplaced rdesc quirk
  HID: force feedback driver for Logitech Rumblepad 2
  HID: move wait from hid to usbhid
  HID: make function from dbg_hid
  HID: fix sparse warnings
  HID: only dump report traffic with debug level 2
  HID: patch to add NOGET for DMI/Acomdata
  HID: Sunplus Wireless Desktop needs report descriptor fixup
  HID: quirk for MS Wireless Desktop Receiver (model 1028)
  HID: fixup fullspeed interval on highspeed Afatech DVB-T IR kbd
  HID: fix build failure in hiddev_ioctl with gcc 3.2

16 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Tue, 22 Apr 2008 20:40:47 +0000 (13:40 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-udf-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: (41 commits)
  udf: use crc_itu_t from lib instead of udf_crc
  udf: Fix compilation warnings when UDF debug is on
  udf: Fix bug in VAT mapping code
  udf: Add read-only support for 2.50 UDF media
  udf: Fix handling of multisession media
  udf: Mount filesystem read-only if it has pseudooverwrite partition
  udf: Handle VAT packed inside inode properly
  udf: Allow loading of VAT inode
  udf: Fix detection of VAT version
  udf: Silence warning about accesses beyond end of device
  udf: Improve anchor block detection
  udf: Cleanup anchor block detection.
  udf: Move processing of virtual partitions
  udf: Move filling of partition descriptor info into a separate function
  udf: Improve error recovery on mount
  udf: Cleanup volume descriptor sequence processing
  udf: fix anchor point detection
  udf: Remove declarations of arrays of size UDF_NAME_LEN (256 bytes)
  udf: Remove checking of existence of filename in udf_add_entry()
  udf: Mark udf_process_sequence() as noinline
  ...

16 years agofix brd allocation flags
Petr Tesarik [Tue, 22 Apr 2008 03:36:52 +0000 (05:36 +0200)]
fix brd allocation flags

While looking at the implementation of the Ram backed block device
driver, I stumbled across a write-only local variable, which makes
little sense, so I assume it should actually work like this:

Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoi2c: Fix platform driver hotplug/coldplug
Kay Sievers [Tue, 22 Apr 2008 20:16:49 +0000 (22:16 +0200)]
i2c: Fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform
modalias is prefixed with "platform:". Add MODULE_ALIAS() to the
hotpluggable I2C platform drivers, to allow module auto loading.

[ db: add some more drivers ]

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c: New driver for the SuperH Mobile I2C bus controller
Magnus Damm [Tue, 22 Apr 2008 20:16:49 +0000 (22:16 +0200)]
i2c: New driver for the SuperH Mobile I2C bus controller

This is V5 of the SuperH Mobile I2C Controller Driver. A simple Master
only driver for the I2C block included in processors such as sh7343,
sh7722 and sh7723. Tested on a sh7722 MigoR using a rs5c732b rtc.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c/scx200_acb: Don't use 0 as NULL pointer
Adrian Bunk [Tue, 22 Apr 2008 20:16:48 +0000 (22:16 +0200)]
i2c/scx200_acb: Don't use 0 as NULL pointer

Don't use 0 as NULL pointer.

Spotted by sparse.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-bfin-twi: Fix mismatch in add timer and delete timer
Hans Schillstrom [Tue, 22 Apr 2008 20:16:48 +0000 (22:16 +0200)]
i2c-bfin-twi: Fix mismatch in add timer and delete timer

Move init_completion to just before i2c transfer.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3385

Signed-off-by: Hans Schillstrom <hans.schillstrom@shlsys.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-bfin-twi: Just let i2c-bfin-twi driver depends on BLACKFIN
Bryan Wu [Tue, 22 Apr 2008 20:16:48 +0000 (22:16 +0200)]
i2c-bfin-twi: Just let i2c-bfin-twi driver depends on BLACKFIN

Simply use "depends on BLACKFIN" (which is technically correct) and just
document which machines have the device.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-bfin-twi: Use simpler comment headers and strip out information that is maintaine...
Mike Frysinger [Tue, 22 Apr 2008 20:16:48 +0000 (22:16 +0200)]
i2c-bfin-twi: Use simpler comment headers and strip out information that is maintained in the scm's log

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-bfin-twi: Cleanup driver descriptions, versions and some module useful information
Bryan Wu [Tue, 22 Apr 2008 20:16:48 +0000 (22:16 +0200)]
i2c-bfin-twi: Cleanup driver descriptions, versions and some module useful information

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-bfin-twi: Add missing pin mux operation
Bryan Wu [Tue, 22 Apr 2008 20:16:48 +0000 (22:16 +0200)]
i2c-bfin-twi: Add missing pin mux operation

Blackfin TWI controller hardware pin should be requested from GPIO port controller
Before BF54x, there is no need to do this. But as long as BF54x and BF52x
are supported by this generic driver, the missing pin mux operation should be
added.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-bfin-twi: Add platform_resource interface to support multi-port TWI controllers
Bryan Wu [Tue, 22 Apr 2008 20:16:48 +0000 (22:16 +0200)]
i2c-bfin-twi: Add platform_resource interface to support multi-port TWI controllers

 - Dynamic alloc the resource of TWI driver data according to board information
 - TWI register read/write accessor based on dynamic regs_base
 - Support TWI0/TWI1 for BF54x

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-bfin-twi: Add repeat start feature to avoid break of a bundle of i2c master xfer...
Sonic Zhang [Tue, 22 Apr 2008 20:16:47 +0000 (22:16 +0200)]
i2c-bfin-twi: Add repeat start feature to avoid break of a bundle of i2c master xfer operation

 - Create a new mode TWI_I2C_MODE_REPEAT.
 - No change to smbus operation.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c: Remove trailing whitespaces in busses/Kconfig
Wolfram Sang [Tue, 22 Apr 2008 20:16:47 +0000 (22:16 +0200)]
i2c: Remove trailing whitespaces in busses/Kconfig

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c: Replace remaining __FUNCTION__ occurrences
Harvey Harrison [Tue, 22 Apr 2008 20:16:47 +0000 (22:16 +0200)]
i2c: Replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c: Renesas SH7760 I2C master driver
Manuel Lauss [Tue, 22 Apr 2008 20:16:47 +0000 (22:16 +0200)]
i2c: Renesas SH7760 I2C master driver

Driver for I2C interfaces in master mode on SH7760.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-dev: Split i2cdev_ioctl
Jean Delvare [Tue, 22 Apr 2008 20:16:47 +0000 (22:16 +0200)]
i2c-dev: Split i2cdev_ioctl

Split the handling of the I2C_RDWR and I2C_SMBUS ioctls to their own
functions. This limits the stack usage, saves one level of indentation
and makes the code more readable.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-ibm_iic: Support building as an of_platform driver
Sean MacLennan [Tue, 22 Apr 2008 20:16:47 +0000 (22:16 +0200)]
i2c-ibm_iic: Support building as an of_platform driver

This patch allows the i2c-ibm_iic driver to be built either as an ocp
driver or an of_platform driver. This allows it to run under the powerpc
arch but maintains backward compatibility with the ppc arch.

Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-ibm_iic: Change the log levels
Sean MacLennan [Tue, 22 Apr 2008 20:16:46 +0000 (22:16 +0200)]
i2c-ibm_iic: Change the log levels

Change the log levels based on feedback from linxppc-dev.

Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c: Add platform driver on top of the new pca-algorithm
Wolfram Sang [Tue, 22 Apr 2008 20:16:46 +0000 (22:16 +0200)]
i2c: Add platform driver on top of the new pca-algorithm

Tested on a blackfin.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-algo-pca: Extend for future drivers
Wolfram Sang [Tue, 22 Apr 2008 20:16:46 +0000 (22:16 +0200)]
i2c-algo-pca: Extend for future drivers

The separation between algorithm and adapter was unsharp at places. This was
partly hidden by the fact, that the ISA-driver allowed just one instance and
had all private data in static variables. This patch makes neccessary
preparations to add a platform driver on top of the algorithm, while still
supporting ISA. Note: Due to lack of hardware, the ISA-driver could not be
tested except that it builds.

Concerning the core struct i2c_algo_pca_data:

- A private data field was added, all hardware dependant data may go here.
  Similar to other algorithms, now a pointer to this data is passed to the
  adapter's functions. In order to make as less changes as possible to the
  ISA-driver, it leaves the private data empty and still only uses its static
  variables.

- A "reset_chip" function pointer was added; such a functionality must come
  from the adapter, not the algorithm.

- use a variable "i2c_clock" instead of a function pointer "get_clock",
  allowing for write access to a default in case a wrong value was supplied.

In the algorithm-file:

- move "i2c-pca-algo.h" into "linux/i2c-algo-pca.h"
- now using per_instance timeout values (i2c_adap->timeout)
- error messages specify the device, not only the driver name
- restructure initialization to easily support "i2c_add_numbered_adapter"
- drop "retries" and "own" (i2c address) as they were unused

(The state-machine for I2C-communication was not touched.)

In the ISA-driver:

- adapt to new algorithm

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c-algo-pca: Remove trailing whitespaces and unnecessary UTF
Wolfram Sang [Tue, 22 Apr 2008 20:16:46 +0000 (22:16 +0200)]
i2c-algo-pca: Remove trailing whitespaces and unnecessary UTF

Remove trailing whitespaces to make further patches more readable.  Also remove
an unnecessary UTF-char for simplicity ("us" for microseconds is fine enough).

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years agoi2c: Remove the algorithm drivers from the config menu
Jean Delvare [Tue, 22 Apr 2008 20:16:46 +0000 (22:16 +0200)]
i2c: Remove the algorithm drivers from the config menu

The algorithm drivers are helper drivers that are selected automatically
as needed. There's no point in listing them in the config menu, it can
only confuse users and waste their time.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
16 years ago[IA64] minor irq handler cleanups
Jeff Garzik [Fri, 18 Apr 2008 23:22:58 +0000 (19:22 -0400)]
[IA64] minor irq handler cleanups

- remove unused 'irq' argument from pfm_do_interrupt_handler()

- remove pointless cast to void*

- add KERN_xxx prefix to printk()

- remove braces around singleton C statement

- in tioce_provider.c, start tioce_dma_consistent() and
  tioce_error_intr_handler() function declarations in column 0

This change's main purpose is to prepare for the patchset in
jgarzik/misc-2.6.git#irq-remove, that explores removal of the
never-used 'irq' argument in each interrupt handler.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] simplify notify hooks in mca.c
Hidetoshi Seto [Thu, 17 Apr 2008 08:00:37 +0000 (17:00 +0900)]
[IA64] simplify notify hooks in mca.c

There are many notify_die() and almost all take same style with
ia64_mca_spin().  This patch defines macros and replace them all,
to reduce lines and to improve readability.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] do notify DIE_MCA_MONARCH_PROCESS for each monarchs
Hidetoshi Seto [Thu, 17 Apr 2008 07:59:52 +0000 (16:59 +0900)]
[IA64] do notify DIE_MCA_MONARCH_PROCESS for each monarchs

There are 3 hooks in MCA handler, but this DIE_MCA_MONARCH_PROCESS
event does not notified other than for the first monarch.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years ago[IA64] disable interrupts on exit of ia64_trace_syscall
Hidetoshi Seto [Mon, 21 Apr 2008 21:34:39 +0000 (14:34 -0700)]
[IA64] disable interrupts on exit of ia64_trace_syscall

While testing with CONFIG_VIRT_CPU_ACCOUNTING=y, I found that
I occasionally get very huge system time in some threads.

So I dug the issue and finally noticed that it was caused
because of an interrupt which interrupt in the following window:

> [arch/ia64/kernel/entry.S: (!CONFIG_PREEMPT && CONFIG_VIRT_CPU_ACCOUNTING)]
>
> ENTRY(ia64_leave_syscall)
>    :
> (pUStk) rsm psr.i
>         cmp.eq pLvSys,p0=r0,r0          // pLvSys=1: leave from syscall
> (pUStk) cmp.eq.unc p6,p0=r0,r0          // p6 <- pUStk
> .work_processed_syscall:
>         adds r2=PT(LOADRS)+16,r12
> (pUStk) mov.m r22=ar.itc                        // fetch time at leave
>         adds r18=TI_FLAGS+IA64_TASK_SIZE,r13
>         ;;
> <<< window: from here >>>
> (p6)    ld4 r31=[r18]  // load current_thread_info()->flags
>         ld8 r19=[r2],PT(B6)-PT(LOADRS)
>         adds r3=PT(AR_BSPSTORE)+16,r12
>         ;;
>         mov r16=ar.bsp
>         ld8 r18=[r2],PT(R9)-PT(B6)
> (p6)    and r15=TIF_WORK_MASK,r31  // any work other than TIF_SYSCALL_TRACE?
>         ;;
>         ld8 r23=[r3],PT(R11)-PT(AR_BSPSTORE)
> (p6)    cmp4.ne.unc p6,p0=r15, r0               // any special work pending?
> (p6)    br.cond.spnt .work_pending_syscall
>         ;;
>         ld8 r9=[r2],PT(CR_IPSR)-PT(R9)
>         ld8 r11=[r3],PT(CR_IIP)-PT(R11)
> (pNonSys) break 0 // bug check: we shouldn't be here if pNonSys is TRUE!
>         ;;
>         invala
> <<< window: to here >>>
>         rsm psr.i | psr.ic // turn off interrupts and interruption collection

If pUStk is true, it means we are going to return user mode, hence we fetch
ar.itc to get time at leave from system.
It seems that it is not possible to interrupt the window if pUStk is true,
because interrupts are disabled early.  And also disabling interrupt makes
sense because it is safe for referring current_thread_info()->flags.

However interrupting the window while pUStk is true was possible.
The route was:
ia64_trace_syscall
-> .work_pending_syscall_end
-> .work_processed_syscall
Only in case entering the window from this route, interrupts are enabled
during in the window even if pUStk is true.  I suppose interrupts must be
disabled here anyway if pUStk is true.
I'm not sure but afraid that what kind of bad effect were there, other
than crazy system time which I found.

FYI, there was a commit 6f6d75825dc49b082906b84537b4df28293c2977 that
points out a bug at same point(exit of ia64_trace_syscall) in 2006.
It can be said that there was an another bug.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
16 years agoHID: Suppress hidinput for Samsung IR control
Robert Schedel [Fri, 11 Apr 2008 07:21:48 +0000 (09:21 +0200)]
HID: Suppress hidinput for Samsung IR control

Samsung USB remotes (0419:0001) report six keys via standard HID usage pages
(arrow keys, OK, Power).  Kernel 2.6.25 maps those to input events (in addition
to the hiddev report).  The remaining 43 keys are reported via proprietary HID
report page and therefore by hiddev only.

Applications using hiddev and input device might process the 6 standard keys
twice.  To avoid this, the input device will be suppressed for the Samsung
remote with a quirk entry, forcing to use the hiddev device only.

LIRC already contains the proper support.

Signed-off-by: Robert Schedel <r.schedel@yahoo.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: remove 60x GTCO devices from blacklist
Jiri Kosina [Wed, 9 Apr 2008 08:21:48 +0000 (10:21 +0200)]
HID: remove 60x GTCO devices from blacklist

Jeremy Robertson reports that GTCO engineers made a mistake and we don't
need 0x60x GTCO product ids blacklisted.

This mostly reverts dda3fd35, but leaves PID 0x1007 intact.

Reported-by: Jeremy Roberson <jeremy.roberson@einstruction.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: export headers properly
Mike Frysinger [Tue, 8 Apr 2008 08:20:36 +0000 (10:20 +0200)]
HID: export headers properly

I have people whining about using these headers in userspace, and they have
__KERNEL__ markings which implies they're supposed to be exported.  I also
added the required linux/types.h include to hidraw.h since it uses the __u##
kernel types.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Jiri Kosina <jikos@jikos.cz>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: WiseGroup 866 Dual Joypad needs output reports quirk
Jiri Kosina [Fri, 4 Apr 2008 14:50:12 +0000 (16:50 +0200)]
HID: WiseGroup 866 Dual Joypad needs output reports quirk

WiseGroup Ltd, MP-8866 Dual Joypad needs to skip output reports,
as it contains force-feedback output reports.

Reported-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: ThrustMaster FF driver is no longer experimental
Jiri Kosina [Mon, 31 Mar 2008 23:56:33 +0000 (01:56 +0200)]
HID: ThrustMaster FF driver is no longer experimental

There is no need to keep a few years old ThrustMaster force-feedback
driver as experimental.

HID_FF is currently marked experimental anyway, so this is even redundant.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: Logitech diNovo Mini pad support
Jiri Kosina [Mon, 31 Mar 2008 21:49:22 +0000 (23:49 +0200)]
HID: Logitech diNovo Mini pad support

Logitech diNovo Mini needs DUPLICATE_USAGES quirk.

Reported-by: Tom Horsley <tom.horsley@att.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: fix race between open() and disconnect() in usbhid
Oliver Neukum [Mon, 31 Mar 2008 14:27:30 +0000 (16:27 +0200)]
HID: fix race between open() and disconnect() in usbhid

There is a window:

task A task B
spin_lock_irq(&usbhid->inlock); /* Sync with error handler */
usb_set_intfdata(intf, NULL);
spin_unlock_irq(&usbhid->inlock);
usb_kill_urb(usbhid->urbin);
usb_kill_urb(usbhid->urbout);
usb_kill_urb(usbhid->urbctrl);

del_timer_sync(&usbhid->io_retry);
cancel_work_sync(&usbhid->reset_work);

if (!hid->open++) {
res = usb_autopm_get_interface(usbhid->intf);
if (res < 0) {
hid->open--;
return -EIO;
}
}
if (hid_start_in(hid))

if (hid->claimed & HID_CLAIMED_INPUT)
hidinput_disconnect(hid);

in which an open() to an already disconnected device will submit an URB
to an undead device. In case disconnect() was called by an ioctl, this'll
oops. Fix by introducing a new flag and checking it in hid_start_in().

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: make hid_input_field and usbhid_modify_dquirk static
Adrian Bunk [Sun, 30 Mar 2008 23:53:56 +0000 (01:53 +0200)]
HID: make hid_input_field and usbhid_modify_dquirk static

This patch makes the following needlessly global functions static:
- hid-core.c:hid_input_field()
- usbhid/hid-quirks.c:usbhid_modify_dquirk()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: pass numbered reports properly to hidraw
Jiri Kosina [Fri, 28 Mar 2008 13:11:22 +0000 (14:11 +0100)]
HID: pass numbered reports properly to hidraw

The numbered reports need to be passed properly to hidraw (i.e. with the first
data field indicating the report number), otherwise userspace has no idea
about the identification of the report.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: fix misplaced rdesc quirk
Jiri Kosina [Wed, 2 Apr 2008 09:34:10 +0000 (11:34 +0200)]
HID: fix misplaced rdesc quirk

This moves the misplaced rdesc quirk to the place where it belongs.

Reported-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: force feedback driver for Logitech Rumblepad 2
Anssi Hannula [Mon, 31 Mar 2008 23:51:11 +0000 (01:51 +0200)]
HID: force feedback driver for Logitech Rumblepad 2

Add force feedback support for Logitech Rumblepad 2.

Tested-By: Edgar Simo <bobbens@gmail.com>
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: move wait from hid to usbhid
Jiri Slaby [Wed, 19 Mar 2008 20:55:04 +0000 (21:55 +0100)]
HID: move wait from hid to usbhid

Since only place where this is used is usbhid, move it there.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: make function from dbg_hid
Jiri Slaby [Sun, 9 Mar 2008 15:29:24 +0000 (16:29 +0100)]
HID: make function from dbg_hid

To check paramters even if debug is disabled, convert dbg_hid
to inline function with __attribute__(format) checking.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: fix sparse warnings
Jiri Slaby [Fri, 28 Mar 2008 16:06:41 +0000 (17:06 +0100)]
HID: fix sparse warnings

Fix these sparse warnings:
.../hid/hid-core.c:100:15: warning: incorrect type in assignment (different signedness)
.../hid/hid-core.c:100:15:    expected signed int [usertype] *value
.../hid/hid-core.c:100:15:    got unsigned int *<noident>
        by unsigned -> s32

.../hid/hid-input-quirks.c:336:10: warning: Using plain integer as NULL pointer
        by 0 -> NULL

.../hid/usbhid/hid-core.c:786:46: warning: incorrect type in argument 3 (different signedness)
.../hid/usbhid/hid-core.c:786:46:    expected int *max
.../hid/usbhid/hid-core.c:786:46:    got unsigned int *<noident>
.../hid/usbhid/hid-core.c:787:47: warning: incorrect type in argument 3 (different signedness)
.../hid/usbhid/hid-core.c:787:47:    expected int *max
.../hid/usbhid/hid-core.c:787:47:    got unsigned int *<noident>
.../hid/usbhid/hid-core.c:788:48: warning: incorrect type in argument 3 (different signedness)
.../hid/usbhid/hid-core.c:788:48:    expected int *max
.../hid/usbhid/hid-core.c:788:48:    got unsigned int *<noident>
        by int -> unsigned int

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: only dump report traffic with debug level 2
Anssi Hannula [Sat, 22 Mar 2008 22:50:13 +0000 (23:50 +0100)]
HID: only dump report traffic with debug level 2

Currently using debug=1 with hid module prints out all sent and received
reports to the kernel log, while in many cases we only want to see the
report descriptors and hid-input mappings that are printed when a device
is probed.

Add new level debug=2, and only dump the report traffic with that level.

Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: patch to add NOGET for DMI/Acomdata
Pete Zaitcev [Thu, 20 Mar 2008 09:14:02 +0000 (10:14 +0100)]
HID: patch to add NOGET for DMI/Acomdata

This must be the weirdest failure yet. My external disk stops processing
the storage commands the moment it receives a GET_REPORT. The firmware
does not crash; if I do rmmod hid, then SET-INTERFACE restores normal
operations. Still, I cannot live without the keyboard when I want backup
my files. Adding the NOGET quirk fixes this problem for me.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: Sunplus Wireless Desktop needs report descriptor fixup
Jiri Kosina [Fri, 14 Mar 2008 15:53:07 +0000 (16:53 +0100)]
HID: Sunplus Wireless Desktop needs report descriptor fixup

This device has reports lower logical maximum compared to the real
usages for Zoom+ and Zoom- it emits.

This patch bumps the values in the report descriptor up, and also
adjusts HID_MAX_USAGE accordingly.

Reported-by: Khelben Blackstaff <eye.of.the.8eholder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: quirk for MS Wireless Desktop Receiver (model 1028)
Jim Duchek [Fri, 14 Mar 2008 14:53:49 +0000 (15:53 +0100)]
HID: quirk for MS Wireless Desktop Receiver (model 1028)

Microsoft's wireless desktop receiver (Model 1028) has a bug in the report
descriptor -- namely, in four seperate places it uses USAGE_MIN and _MAX when
it quite obviously doesn't intend to.

In other words, it reports that it has pretty much _everything_ in 'consumer'
and 'generic desktop'.  And then the X evdev driver believes I have a mouse
with 36 absolute axes and a huge pile of keys and buttons, when I in fact,
should have zero.  255/256 in three of the cases, and 0-1024 in another.

This patch fixes the report descriptor of this device before it enters the HID
parser.

Signed-off-by: Jim Duchek <jim.duchek@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: fixup fullspeed interval on highspeed Afatech DVB-T IR kbd
Pekka Sarnila [Thu, 6 Mar 2008 12:23:14 +0000 (13:23 +0100)]
HID: fixup fullspeed interval on highspeed Afatech DVB-T IR kbd

Many vendors highspeed devices give erroneously fullspeed interval value in
endpoint descriptor for interrupt endpoints. This quirk fixes up that by
recalculating the right value for highspeed device.

At the time of hid configuration this quirk calculates which highspeed interval
value gives same interval delay as, or next smaller then, what it would be if
the original value would be interpreted as fullspeed value. In subsequent urbs
that new value is used instead.

Forming the 'hid->name' in usb_hid_config() was moved up to accommodate more
descriptive printk reporting the fixup.

In this patch the quirk is set for one such device: Afatech DVB-T 2 infrared
HID-keyboard. It reports value 16 which means 4,069s in highspeed while
obviously 16ms was intended. In this case quirk calculates new value to be 8
which gives when interpreted as highspeed value 16ms as wanted. The behavior of
the device was verified to be what expected both before and after the patch.

Signed-off-by: Pekka Sarnila <sarnila@adit.fi>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: fix build failure in hiddev_ioctl with gcc 3.2
Jean Delvare [Mon, 3 Mar 2008 10:48:43 +0000 (11:48 +0100)]
HID: fix build failure in hiddev_ioctl with gcc 3.2

Fix build failure in hiddev_ioctl with gcc 3.2:
http://bugzilla.kernel.org/show_bug.cgi?id=10121

The trick is to move the handling of ioctls which need to allocate
memory to separate functions.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years ago[IPSEC]: Fix catch-22 with algorithm IDs above 31
Herbert Xu [Tue, 22 Apr 2008 07:46:42 +0000 (00:46 -0700)]
[IPSEC]: Fix catch-22 with algorithm IDs above 31

As it stands it's impossible to use any authentication algorithms
with an ID above 31 portably.  It just happens to work on x86 but
fails miserably on ppc64.

The reason is that we're using a bit mask to check the algorithm
ID but the mask is only 32 bits wide.

After looking at how this is used in the field, I have concluded
that in the long term we should phase out state matching by IDs
because this is made superfluous by the reqid feature.  For current
applications, the best solution IMHO is to allow all algorithms when
the bit masks are all ~0.

The following patch does exactly that.

This bug was identified by IBM when testing on the ppc64 platform
using the NULL authentication algorithm which has an ID of 251.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoSELinux fixups needed for preemptable RCU from -rt
Paul E. McKenney [Tue, 22 Apr 2008 01:12:33 +0000 (18:12 -0700)]
SELinux fixups needed for preemptable RCU from -rt

The attached patch needs to move from -rt to mainline given preemptable RCU.
This patch fixes SELinux code that implicitly assumes that disabling
preemption prevents an RCU grace period from completing, an assumption that
is valid for Classic RCU, but not necessarily for preemptable RCU.  Explicit
rcu_read_lock() calls are thus added.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>