Tetsuo Handa [Mon, 21 Jun 2010 02:14:39 +0000 (11:14 +0900)]
TOMOYO: Use common code for domain transition control.
Use common code for "initialize_domain"/"no_initialize_domain"/"keep_domain"/
"no_keep_domain" keywords.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Mon, 21 Jun 2010 00:58:53 +0000 (09:58 +0900)]
TOMOYO: Remove alias keyword.
Some programs behave differently depending on argv[0] passed to execve().
TOMOYO has "alias" keyword in order to allow administrators to define different
domains if requested pathname passed to execve() is a symlink. But "alias"
keyword is incomplete because this keyword assumes that requested pathname and
argv[0] are identical. Thus, remove "alias" keyword (by this patch) and add
syntax for checking argv[0] (by future patches).
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 17 Jun 2010 07:55:58 +0000 (16:55 +0900)]
TOMOYO: Merge path_group and number_group.
Use common code for "path_group" and "number_group".
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 17 Jun 2010 07:54:33 +0000 (16:54 +0900)]
TOMOYO: Aggregate reader functions.
Now lists are accessible via array index. Aggregate reader functions using index.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 17 Jun 2010 07:53:24 +0000 (16:53 +0900)]
TOMOYO: Use array of "struct list_head".
Assign list id and make the lists as array of "struct list_head".
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 17 Jun 2010 07:52:29 +0000 (16:52 +0900)]
TOMOYO: Merge tomoyo_path_group and tomoyo_number_group
"struct tomoyo_path_group" and "struct tomoyo_number_group" are identical.
Rename tomoyo_path_group/tomoyo_number_group to tomoyo_group and
tomoyo_path_group_member to tomoyo_path_group and
tomoyo_number_group_member to tomoyo_unmber_group.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Paul Moore [Thu, 22 Apr 2010 18:46:19 +0000 (14:46 -0400)]
selinux: Use current_security() when possible
There were a number of places using the following code pattern:
struct cred *cred = current_cred();
struct task_security_struct *tsec = cred->security;
... which were simplified to the following:
struct task_security_struct *tsec = current_security();
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Paul Moore [Thu, 22 Apr 2010 18:46:19 +0000 (14:46 -0400)]
selinux: Convert socket related access controls to use socket labels
At present, the socket related access controls use a mix of inode and
socket labels; while there should be no practical difference (they
_should_ always be the same), it makes the code more confusing. This
patch attempts to convert all of the socket related access control
points (with the exception of some of the inode/fd based controls) to
use the socket's own label. In the process, I also converted the
socket_has_perm() function to take a 'sock' argument instead of a
'socket' since that was adding a bit more overhead in some cases.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Paul Moore [Thu, 22 Apr 2010 18:46:18 +0000 (14:46 -0400)]
selinux: Shuffle the sk_security_struct alloc and free routines
The sk_alloc_security() and sk_free_security() functions were only being
called by the selinux_sk_alloc_security() and selinux_sk_free_security()
functions so we just move the guts of the alloc/free routines to the
callers and eliminate a layer of indirection.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Paul Moore [Thu, 22 Apr 2010 18:46:18 +0000 (14:46 -0400)]
selinux: Consolidate sockcreate_sid logic
Consolidate the basic sockcreate_sid logic into a single helper function
which allows us to do some cleanups in the related code.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Paul Moore [Thu, 22 Apr 2010 18:46:18 +0000 (14:46 -0400)]
selinux: Set the peer label correctly on connected UNIX domain sockets
Correct a problem where we weren't setting the peer label correctly on
the client end of a pair of connected UNIX sockets.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:31:50 +0000 (16:31 +0900)]
TOMOYO: Pass "struct list_head" rather than "void *".
Pass "struct list_head" to tomoyo_add_to_gc() and bring
list_del_rcu() to tomoyo_add_to_gc().
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:29:59 +0000 (16:29 +0900)]
TOMOYO: Make read function to void.
Read functions do not fail. Make them from int to void.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:28:21 +0000 (16:28 +0900)]
TOMOYO: Merge functions.
Embed tomoyo_path_number_perm2() into tomoyo_path_number_perm().
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:26:38 +0000 (16:26 +0900)]
TOMOYO: Remove wrapper function for reading keyword.
Keyword strings are read-only. We can directly access them to reduce code size.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:24:58 +0000 (16:24 +0900)]
TOMOYO: Loosen parameter check for mount operation.
If invalid combination of mount flags are given, it will be rejected later.
Thus, no need for TOMOYO to reject invalid combination of mount flags.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:23:55 +0000 (16:23 +0900)]
TOMOYO: Rename symbols.
Use shorter name in order to make it easier to fix 80 columns limit.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:22:51 +0000 (16:22 +0900)]
TOMOYO: Use callback for permission check.
We can use callback function since parameters are passed via
"const struct tomoyo_request_info".
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:21:36 +0000 (16:21 +0900)]
TOMOYO: Pass parameters via structure.
To make it possible to use callback function, pass parameters via
"struct tomoyo_request_info".
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 16 Jun 2010 07:20:24 +0000 (16:20 +0900)]
TOMOYO: Use common code for open and mkdir etc.
tomoyo_file_perm() and tomoyo_path_permission() are similar.
We can embed tomoyo_file_perm() into tomoyo_path_permission().
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Eric Paris [Fri, 11 Jun 2010 16:37:05 +0000 (12:37 -0400)]
SELinux: seperate range transition rules to a seperate function
Move the range transition rule to a separate function, range_read(), rather
than doing it all in policydb_read()
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Tue, 15 Jun 2010 01:10:37 +0000 (10:10 +0900)]
TOMOYO: Use common code for garbage collection.
Use common code for elements using "struct list_head" + "bool" structure.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Tue, 15 Jun 2010 00:23:26 +0000 (09:23 +0900)]
TOMOYO: Use callback for updating entries.
Use common code for elements using "struct list_head" + "bool" structure.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Tue, 15 Jun 2010 00:22:42 +0000 (09:22 +0900)]
TOMOYO: Use common structure for list element.
Use common "struct list_head" + "bool" structure.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Sat, 12 Jun 2010 11:46:22 +0000 (20:46 +0900)]
TOMOYO: Use callback for updating entries.
Use common "struct list_head" + "bool" + "u8" structure and
use common code for elements using that structure.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
David Howells [Fri, 11 Jun 2010 16:31:10 +0000 (17:31 +0100)]
KEYS: Make /proc/keys check to see if a key is possessed before security check
Make /proc/keys check to see if the calling process possesses each key before
performing the security check. The possession check can be skipped if the key
doesn't have the possessor-view permission bit set.
This causes the keys a process possesses to show up in /proc/keys, even if they
don't have matching user/group/other view permissions.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
David Howells [Fri, 11 Jun 2010 16:31:05 +0000 (17:31 +0100)]
KEYS: Authorise keyctl_set_timeout() on a key if we have its authorisation key
Authorise a process to perform keyctl_set_timeout() on an uninstantiated key if
that process has the authorisation key for it.
This allows the instantiator to set the timeout on a key it is instantiating -
provided it does it before instantiating the key.
For instance, the test upcall script provided with the keyutils package could
be modified to set the expiry to an hour hence before instantiating the key:
[/usr/share/keyutils/request-key-debug.sh]
if [ "$3" != "neg" ]
then
+ keyctl timeout $1 3600
keyctl instantiate $1 "Debug $3" $4 || exit 1
else
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 3 Jun 2010 11:38:44 +0000 (20:38 +0900)]
TOMOYO: Update profile structure.
This patch allows users to change access control mode for per-operation basis.
This feature comes from non LSM version of TOMOYO which is designed for
permitting users to use SELinux and TOMOYO at the same time.
SELinux does not care filename in a directory whereas TOMOYO does. Change of
filename can change how the file is used. For example, renaming index.txt to
.htaccess will change how the file is used. Thus, letting SELinux to enforce
read()/write()/mmap() etc. restriction and letting TOMOYO to enforce rename()
restriction is an example usage of this feature.
What is unfortunate for me is that currently LSM does not allow users to use
SELinux and LSM version of TOMOYO at the same time...
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 3 Jun 2010 11:38:03 +0000 (20:38 +0900)]
TOMOYO: Add pathname aggregation support.
This patch allows users to aggregate programs which provide similar
functionality (e.g. /usr/bin/vi and /usr/bin/emacs ).
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 3 Jun 2010 11:37:26 +0000 (20:37 +0900)]
TOMOYO: Allow wildcard for execute permission.
Some applications create and execute programs dynamically. We need to accept
wildcard for execute permission because such programs contain random suffix
in their filenames. This patch loosens up regulation of string parameters.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 3 Jun 2010 11:36:43 +0000 (20:36 +0900)]
TOMOYO: Support longer pathname.
Allow pathnames longer than 4000 bytes.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Thu, 3 Jun 2010 11:35:53 +0000 (20:35 +0900)]
TOMOYO: Several fixes for TOMOYO's management programs.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Wed, 2 Jun 2010 04:24:43 +0000 (13:24 +0900)]
LSM: Remove unused arguments from security_path_truncate().
When commit
be6d3e56a6b9b3a4ee44a0685e39e595073c6f0d "introduce new LSM hooks
where vfsmount is available." was proposed, regarding security_path_truncate(),
only "struct file *" argument (which AppArmor wanted to use) was removed.
But length and time_attrs arguments are not used by TOMOYO nor AppArmor.
Thus, let's remove these arguments.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: James Morris <jmorris@namei.org>
Dan Carpenter [Tue, 1 Jun 2010 07:14:04 +0000 (09:14 +0200)]
smack: opt_dentry is never null in in smack_d_instantiate()
This patch removes some unneeded code for if opt_dentry is null because
that can never happen.
The function dereferences "opt_dentry" earlier when it checks
"if (opt_dentry->d_parent == opt_dentry) {". That code was added in
2008.
This function called from security_d_instantiate(). I checked all the
places which call security_d_instantiate() and dentry is always non-null.
I also checked the selinux version of this hook and there is a comment
which says that dentry should be non-null if called from
d_instantiate().
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Mon, 17 May 2010 01:12:46 +0000 (10:12 +0900)]
TOMOYO: Split files into some pieces.
security/tomoyo/common.c became too large to read.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Mon, 17 May 2010 01:11:36 +0000 (10:11 +0900)]
TOMOYO: Add interactive enforcing mode.
Since the behavior of the system is restricted by policy, we may need to update
policy when you update packages.
We need to update policy in the following cases.
* The pathname of files has changed.
* The dependency of files has changed.
* The access permissions required has increased.
The ideal way to update policy is to rebuild from the scratch using learning
mode. But it is not desirable to change from enforcing mode to other mode if
the system has once entered in production state. Suppose MAC could support
per-application enforcing mode, the MAC becomes useless if an application that
is not running in enforcing mode was cracked. For example, the whole system
becomes vulnerable if only HTTP server application is running in learning mode
to rebuild policy for the application. So, in TOMOYO Linux, updating policy is
done while the system is running in enforcing mode.
This patch implements "interactive enforcing mode" which allows administrators
to judge whether to accept policy violation in enforcing mode or not.
A demo movie is available at http://www.youtube.com/watch?v=b9q1Jo25LPA .
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Mon, 17 May 2010 01:10:31 +0000 (10:10 +0900)]
TOMOYO: Add mount restriction.
mount(2) has three string and one numeric parameters.
Split mount restriction code from security/tomoyo/file.c .
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Mon, 17 May 2010 01:09:15 +0000 (10:09 +0900)]
TOMOYO: Split file access control functions by type of parameters.
Check numeric parameters for operations that deal them
(e.g. chmod/chown/ioctl).
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Mon, 17 May 2010 01:08:05 +0000 (10:08 +0900)]
TOMOYO: Use structure for passing common arguments.
Use "struct tomoyo_request_info" instead of passing individual arguments.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Tetsuo Handa [Mon, 17 May 2010 01:06:58 +0000 (10:06 +0900)]
TOMOYO: Add numeric values grouping support.
This patch adds numeric values grouping support, which is useful for grouping
numeric values such as file's UID, DAC's mode, ioctl()'s cmd number.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Paul E. McKenney [Tue, 18 May 2010 19:11:25 +0000 (12:11 -0700)]
selinux: remove all rcu head initializations
Remove all rcu head inits. We don't care about the RCU head state before passing
it to call_rcu() anyway. Only leave the "on_stack" variants so debugobjects can
keep track of objects on stack.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Reviewed-by: James Morris <jmorris@namei.org>
Cc: Eric Paris <eparis@parisplace.org>
Signed-off-by: James Morris <jmorris@namei.org>
Linus Torvalds [Sun, 1 Aug 2010 22:11:14 +0000 (15:11 -0700)]
Linux 2.6.35
Trond Myklebust [Sun, 1 Aug 2010 17:40:40 +0000 (13:40 -0400)]
NFS: Fix a typo in include/linux/nfs_fs.h
nfs_commit_inode() needs to be defined irrespectively of whether or not
we are supporting NFSv3 and NFSv4.
Allow the compiler to optimise away code in the NFSv2-only case by
converting it into an inlined stub function.
Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 31 Jul 2010 02:02:51 +0000 (19:02 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
cyber2000fb: fix console in truecolor modes
cyber2000fb: fix machine hang on module load
SA1111: Eliminate use after free
ARM: Fix Versatile/Realview/VExpress MMC card detection sense
ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_vipt
ARM: Add barriers to io{read,write}{8,16,32} accessors as well
ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLE
ARM: 6272/1: Convert L2x0 to use the IO relaxed operations
ARM: 6271/1: Introduce *_relaxed() I/O accessors
ARM: 6275/1: ux500: don't use writeb() in uncompress.h
ARM: 6270/1: clean files in arch/arm/boot/compressed/
ARM: Fix csum_partial_copy_from_user()
Linus Torvalds [Sat, 31 Jul 2010 02:02:21 +0000 (19:02 -0700)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
NFS: Ensure that writepage respects the nonblock flag
NFS: kswapd must not block in nfs_release_page
nfs: include space for the NUL in root path
Linus Torvalds [Sat, 31 Jul 2010 02:01:11 +0000 (19:01 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/edid: Fix the HDTV hack sync adjustment
drm/radeon/kms: fix radeon mid power profile reporting
Hugh Dickins [Fri, 30 Jul 2010 17:58:26 +0000 (10:58 -0700)]
mm: fix ia64 crash when gcore reads gate area
Debian's ia64 autobuilders have been seeing kernel freeze or reboot
when running the gdb testsuite (Debian bug 588574): dannf bisected to
2.6.32
62eede62dafb4a6633eae7ffbeb34c60dba5e7b1 "mm: ZERO_PAGE without
PTE_SPECIAL"; and reproduced it with gdb's gcore on a simple target.
I'd missed updating the gate_vma handling in __get_user_pages(): that
happens to use vm_normal_page() (nowadays failing on the zero page),
yet reported success even when it failed to get a page - boom when
access_process_vm() tried to copy that to its intermediate buffer.
Fix this, resisting cleanups: in particular, leave it for now reporting
success when not asked to get any pages - very probably safe to change,
but let's not risk it without testing exposure.
Why did ia64 crash with 16kB pages, but succeed with 64kB pages?
Because setup_gate() pads each 64kB of its gate area with zero pages.
Reported-by: Andreas Barth <aba@not.so.argh.org>
Bisected-by: dann frazier <dannf@debian.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Tested-by: dann frazier <dannf@dannf.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 30 Jul 2010 14:25:19 +0000 (15:25 +0100)]
CIFS: Remove __exit mark from cifs_exit_dns_resolver()
Remove the __exit mark from cifs_exit_dns_resolver() as it's called by the
module init routine in case of error, and so may have been discarded during
linkage.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ondrej Zary [Thu, 29 Jul 2010 20:40:54 +0000 (22:40 +0200)]
cyber2000fb: fix console in truecolor modes
Return value was not set to 0 in setcolreg() with truecolor modes. This causes
fb_set_cmap() to abort after first color, resulting in blank palette - and
blank console in 24bpp and 32bpp modes.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Ondrej Zary [Thu, 29 Jul 2010 20:32:20 +0000 (22:32 +0200)]
cyber2000fb: fix machine hang on module load
I was testing two CyberPro 2000 based PCI cards on x86 and the machine always
hanged completely when the cyber2000fb module was loaded. It seems that the
card hangs when some registers are accessed too quickly after writing RAMDAC
control register. With this patch, both card work.
Add delay after RAMDAC control register write to prevent hangs on module load.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Julia Lawall [Fri, 30 Jul 2010 15:17:28 +0000 (17:17 +0200)]
SA1111: Eliminate use after free
__sa1111_remove always frees its argument, so the subsequent reference to
sachip->saved_state represents a use after free. __sa1111_remove does not
appear to use the saved_state field, so the patch simply frees it first.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression E,E2;
@@
__sa1111_remove(E)
...
(
E = E2
|
* E
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 29 Jul 2010 14:58:59 +0000 (15:58 +0100)]
ARM: Fix Versatile/Realview/VExpress MMC card detection sense
The MMC card detection sense has become really confused with negations
at various levels, leading to some platforms not detecting inserted
cards. Fix this by converting everything to positive logic throughout,
thereby getting rid of these negations.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Gary King [Thu, 29 Jul 2010 16:37:20 +0000 (17:37 +0100)]
ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_vipt
smp_processor_id() must not be called from a preemptible context (this
is checked by CONFIG_DEBUG_PREEMPT). kmap_high_l1_vipt() was doing so.
This lead to a problem where the wrong per_cpu kmap_high_l1_vipt_depth
could be incremented, causing a BUG_ON(*depth <= 0); in
kunmap_high_l1_vipt().
The solution is to move the call to smp_processor_id() after the call
to preempt_disable().
Originally by: Andrew Howe <ahowe@nvidia.com>
Signed-off-by: Gary King <gking@nvidia.com>
Acked-by: Nicolas Pitre <nico.as.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Trond Myklebust [Fri, 30 Jul 2010 19:31:57 +0000 (15:31 -0400)]
NFS: Ensure that writepage respects the nonblock flag
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Trond Myklebust [Fri, 30 Jul 2010 19:31:54 +0000 (15:31 -0400)]
NFS: kswapd must not block in nfs_release_page
See https://bugzilla.kernel.org/show_bug.cgi?id=16056
If other processes are blocked waiting for kswapd to free up some memory so
that they can make progress, then we cannot allow kswapd to block on those
processes.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Dan Carpenter [Tue, 13 Jul 2010 11:34:59 +0000 (13:34 +0200)]
nfs: include space for the NUL in root path
In root_nfs_name() it does the following:
if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) {
printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
return -1;
}
sprintf(nfs_export_path, buf, cp);
In the original code if (strlen(buf) + strlen(cp) == NFS_MAXPATHLEN)
then the sprintf() would lead to an overflow. Generally the rest of the
code assumes that the path can have NFS_MAXPATHLEN (1024) characters and
a NUL terminator so the fix is to add space to the nfs_export_path[]
buffer.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Linus Torvalds [Thu, 29 Jul 2010 22:23:28 +0000 (15:23 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] etr: fix clock synchronization race
[S390] Fix IRQ tracing in case of PER
Linus Torvalds [Thu, 29 Jul 2010 22:21:44 +0000 (15:21 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: update MAINTAINERS entry
Linus Torvalds [Thu, 29 Jul 2010 22:21:07 +0000 (15:21 -0700)]
Merge branch 'fix/hda' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Add a PC-beep workaround for ASUS P5-V
ALSA: hda - Assume PC-beep as default for Realtek
ALSA: hda - Don't register beep input device when no beep is available
ALSA: hda - Fix pin-detection of Nvidia HDMI
David Howells [Thu, 29 Jul 2010 11:45:55 +0000 (12:45 +0100)]
CRED: Fix __task_cred()'s lockdep check and banner comment
Fix __task_cred()'s lockdep check by removing the following validation
condition:
lockdep_tasklist_lock_is_held()
as commit_creds() does not take the tasklist_lock, and nor do most of the
functions that call it, so this check is pointless and it can prevent
detection of the RCU lock not being held if the tasklist_lock is held.
Instead, add the following validation condition:
task->exit_state >= 0
to permit the access if the target task is dead and therefore unable to change
its own credentials.
Fix __task_cred()'s comment to:
(1) discard the bit that says that the caller must prevent the target task
from being deleted. That shouldn't need saying.
(2) Add a comment indicating the result of __task_cred() should not be passed
directly to get_cred(), but rather than get_task_cred() should be used
instead.
Also put a note into the documentation to enforce this point there too.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 29 Jul 2010 11:45:49 +0000 (12:45 +0100)]
CRED: Fix get_task_cred() and task_state() to not resurrect dead credentials
It's possible for get_task_cred() as it currently stands to 'corrupt' a set of
credentials by incrementing their usage count after their replacement by the
task being accessed.
What happens is that get_task_cred() can race with commit_creds():
TASK_1 TASK_2 RCU_CLEANER
-->get_task_cred(TASK_2)
rcu_read_lock()
__cred = __task_cred(TASK_2)
-->commit_creds()
old_cred = TASK_2->real_cred
TASK_2->real_cred = ...
put_cred(old_cred)
call_rcu(old_cred)
[__cred->usage == 0]
get_cred(__cred)
[__cred->usage == 1]
rcu_read_unlock()
-->put_cred_rcu()
[__cred->usage == 1]
panic()
However, since a tasks credentials are generally not changed very often, we can
reasonably make use of a loop involving reading the creds pointer and using
atomic_inc_not_zero() to attempt to increment it if it hasn't already hit zero.
If successful, we can safely return the credentials in the knowledge that, even
if the task we're accessing has released them, they haven't gone to the RCU
cleanup code.
We then change task_state() in procfs to use get_task_cred() rather than
calling get_cred() on the result of __task_cred(), as that suffers from the
same problem.
Without this change, a BUG_ON in __put_cred() or in put_cred_rcu() can be
tripped when it is noticed that the usage count is not zero as it ought to be,
for example:
kernel BUG at kernel/cred.c:168!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/kernel/mm/ksm/run
CPU 0
Pid: 2436, comm: master Not tainted 2.6.33.3-85.fc13.x86_64 #1 0HR330/OptiPlex
745
RIP: 0010:[<
ffffffff81069881>] [<
ffffffff81069881>] __put_cred+0xc/0x45
RSP: 0018:
ffff88019e7e9eb8 EFLAGS:
00010202
RAX:
0000000000000001 RBX:
ffff880161514480 RCX:
00000000ffffffff
RDX:
00000000ffffffff RSI:
ffff880140c690c0 RDI:
ffff880140c690c0
RBP:
ffff88019e7e9eb8 R08:
00000000000000d0 R09:
0000000000000000
R10:
0000000000000001 R11:
0000000000000040 R12:
ffff880140c690c0
R13:
ffff88019e77aea0 R14:
00007fff336b0a5c R15:
0000000000000001
FS:
00007f12f50d97c0(0000) GS:
ffff880007400000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
00007f8f461bc000 CR3:
00000001b26ce000 CR4:
00000000000006f0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Process master (pid: 2436, threadinfo
ffff88019e7e8000, task
ffff88019e77aea0)
Stack:
ffff88019e7e9ec8 ffffffff810698cd ffff88019e7e9ef8 ffffffff81069b45
<0>
ffff880161514180 ffff880161514480 ffff880161514180 0000000000000000
<0>
ffff88019e7e9f28 ffffffff8106aace 0000000000000001 0000000000000246
Call Trace:
[<
ffffffff810698cd>] put_cred+0x13/0x15
[<
ffffffff81069b45>] commit_creds+0x16b/0x175
[<
ffffffff8106aace>] set_current_groups+0x47/0x4e
[<
ffffffff8106ac89>] sys_setgroups+0xf6/0x105
[<
ffffffff81009b02>] system_call_fastpath+0x16/0x1b
Code: 48 8d 71 ff e8 7e 4e 15 00 85 c0 78 0b 8b 75 ec 48 89 df e8 ef 4a 15 00
48 83 c4 18 5b c9 c3 55 8b 07 8b 07 48 89 e5 85 c0 74 04 <0f> 0b eb fe 65 48 8b
04 25 00 cc 00 00 48 3b b8 58 04 00 00 75
RIP [<
ffffffff81069881>] __put_cred+0xc/0x45
RSP <
ffff88019e7e9eb8>
---[ end trace
df391256a100ebdd ]---
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wim Van Sebroeck [Thu, 29 Jul 2010 18:02:51 +0000 (18:02 +0000)]
watchdog: update MAINTAINERS entry
Add Mailing-list and website to watchdog MAINTAINERS entry.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Takashi Iwai [Thu, 29 Jul 2010 13:30:02 +0000 (15:30 +0200)]
ALSA: hda - Add a PC-beep workaround for ASUS P5-V
ASUS P5-V provides a SSID that unexpectedly matches with the value
compilant with Realtek's specification. Thus the driver interprets
it badly, resulting in non-working PC beep.
This patch adds a white-list for such a case; a white-list of known
devices with working PC beep.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Russell King [Thu, 29 Jul 2010 10:38:05 +0000 (11:38 +0100)]
ARM: Add barriers to io{read,write}{8,16,32} accessors as well
The ioread/iowrite accessors also need barriers as they're used in
place of readl/writel et.al. in portable drivers. Create __iormb()
and __iowmb() which are conditionally defined to be barriers dependent
on ARM_DMA_MEM_BUFFERABLE, and always use these macros in the accessors.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:01:55 +0000 (22:01 +0100)]
ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLE
When the coherent DMA buffers are mapped as Normal Non-cacheable
(ARM_DMA_MEM_BUFFERABLE enabled), buffer accesses are no longer ordered
with Device memory accesses causing failures in device drivers that do
not use the mandatory memory barriers before starting a DMA transfer.
LKML discussions led to the conclusion that such barriers have to be
added to the I/O accessors:
http://thread.gmane.org/gmane.linux.kernel/683509/focus=686153
http://thread.gmane.org/gmane.linux.ide/46414
http://thread.gmane.org/gmane.linux.kernel.cross-arch/5250
This patch introduces a wmb() barrier to the write*() I/O accessors to
handle the situations where Normal Non-cacheable writes are still in the
processor (or L2 cache controller) write buffer before a DMA transfer
command is issued. For the read*() accessors, a rmb() is introduced
after the I/O to avoid speculative loads where the driver polls for a
DMA transfer ready bit.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:01:25 +0000 (22:01 +0100)]
ARM: 6272/1: Convert L2x0 to use the IO relaxed operations
This patch is in preparation for a subsequent patch which adds barriers
to the I/O accessors. Since the mandatory barriers may do an L2 cache
sync, this patch avoids a recursive call into l2x0_cache_sync() via the
write*() accessors and wmb() and a call into l2x0_cache_sync() with the
l2x0_lock held.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:00:54 +0000 (22:00 +0100)]
ARM: 6271/1: Introduce *_relaxed() I/O accessors
This patch introduces readl*_relaxed()/write*_relaxed() as the main I/O
accessors (when __mem_pci is defined). The standard read*()/write*()
macros are now based on the relaxed accessors.
This patch is in preparation for a subsequent patch which adds barriers
to the I/O accessors.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rabin Vincent [Thu, 29 Jul 2010 11:13:18 +0000 (12:13 +0100)]
ARM: 6275/1: ux500: don't use writeb() in uncompress.h
Don't use writeb() in uncompress.h, to avoid the following build errors
when the "Add barriers to the I/O accessors" series is applied. Use
__raw_writeb() instead.
arch/arm/boot/compressed/misc.o: In function `putc':
arch/arm/mach-ux500/include/mach/uncompress.h:41:
undefined reference to `outer_cache'
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Magnus Damm [Wed, 28 Jul 2010 04:46:21 +0000 (05:46 +0100)]
ARM: 6270/1: clean files in arch/arm/boot/compressed/
Update the compressed boot Makefile for ARM to
remove files during clean.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Adam Jackson [Tue, 27 Jul 2010 21:40:32 +0000 (07:40 +1000)]
drm/edid: Fix the HDTV hack sync adjustment
We're adjusting horizontal timings only here, moving vsync was just a
slavish translation of a typo in the X server.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel J Blueman [Wed, 28 Jul 2010 11:25:58 +0000 (12:25 +0100)]
drm/radeon/kms: fix radeon mid power profile reporting
Fix incorrectly reporting 'default' power profile, when it is set to 'mid'.
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Thu, 29 Jul 2010 03:01:26 +0000 (20:01 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
x86,kgdb: Fix hw breakpoint regression
Linus Torvalds [Thu, 29 Jul 2010 03:00:42 +0000 (20:00 -0700)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] ibmvscsi: Fix oops when an interrupt is pending during probe
[SCSI] zfcp: Update status read mempool
[SCSI] zfcp: Do not wait for SBALs on stopped queue
[SCSI] zfcp: Fix check whether unchained ct_els is possible
[SCSI] ipr: fix resource path display and formatting
Linus Torvalds [Thu, 29 Jul 2010 02:59:55 +0000 (19:59 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
davinci: da850/omap-l138 evm: account for DEFDCDC{2,3} being tied high
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
wm8350-regulator: fix wm8350_register_regulator error handling
ab3100: fix off-by-one value range checking for voltage selector
Andre Osterhues [Tue, 13 Jul 2010 20:59:17 +0000 (15:59 -0500)]
ecryptfs: Bugfix for error related to ecryptfs_hash_buckets
The function ecryptfs_uid_hash wrongly assumes that the
second parameter to hash_long() is the number of hash
buckets instead of the number of hash bits.
This patch fixes that and renames the variable
ecryptfs_hash_buckets to ecryptfs_hash_bits to make it
clearer.
Fixes: CVE-2010-2492
Signed-off-by: Andre Osterhues <aosterhues@escrypt.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jason Wessel [Thu, 29 Jul 2010 00:10:30 +0000 (19:10 -0500)]
x86,kgdb: Fix hw breakpoint regression
HW breakpoints events stopped working correctly with kgdb
as a result of commit:
018cbffe6819f6f8db20a0a3acd9bab9bfd667e4
(Merge commit 'v2.6.33' into perf/core).
The regression occurred because the behavior changed for setting
NOTIFY_STOP as the return value to the die notifier if the breakpoint
was known to the HW breakpoint API. Because kgdb is using the HW
breakpoint API to register HW breakpoints slots, it must also now
implement the overflow_handler call back else kgdb does not get to see
the events from the die notifier.
The kgdb_ll_trap function will be changed to be general purpose code
which can allow an easy way to implement the hw_breakpoint API
overflow call back.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Dongdong Deng <dongdong.deng@windriver.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Linus Torvalds [Wed, 28 Jul 2010 18:10:53 +0000 (11:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: use complete_all and wake_up_all
ceph: Correct obvious typo of Kconfig variable "CRYPTO_AES"
ceph: fix dentry lease release
ceph: fix leak of dentry in ceph_init_dentry() error path
ceph: fix pg_mapping leak on pg_temp updates
ceph: fix d_release dop for snapdir, snapped dentries
ceph: avoid dcache readdir for snapdir
Steven Whitehouse [Wed, 28 Jul 2010 16:56:23 +0000 (17:56 +0100)]
GFS2: Use kmalloc when possible for ->readdir()
If we don't need a huge amount of memory in ->readdir() then
we can use kmalloc rather than vmalloc to allocate it. This
should cut down on the greater overheads associated with
vmalloc for smaller directories.
We may be able to eliminate vmalloc entirely at some stage,
but this is easy to do right away.
Also using GFP_NOFS to avoid any issues wrt to deleting inodes
while under a glock, and suggestion from Linus to factor out
the alloc/dealloc.
I've given this a test with a variety of different sized
directories and it seems to work ok.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Takashi Iwai [Wed, 28 Jul 2010 15:43:36 +0000 (17:43 +0200)]
ALSA: hda - Assume PC-beep as default for Realtek
Enable PC-beep as default for hardwares that aren't compliant with the
SSID value Realtek requires. In such a case, better to enable the beep
to avoid a regression.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Wed, 28 Jul 2010 15:37:16 +0000 (17:37 +0200)]
ALSA: hda - Don't register beep input device when no beep is available
We check now the availability of PC beep and skip the build of beep
mixers, but the driver still registers the input device. This should
be checked as well.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Sekhar Nori [Mon, 12 Jul 2010 12:26:21 +0000 (17:56 +0530)]
davinci: da850/omap-l138 evm: account for DEFDCDC{2,3} being tied high
Per the da850/omap-l138 Beta EVM SOM schematic, the
DEFDCDC2 and
DEFDCDC3 lines are tied high. This leads to a 3.3V IO and 1.2V CVDD
voltage.
Pass the right platform data to the TPS6507x driver so it can operate
on the DEFDCDC{2,3}_HIGH register to read and change voltage levels.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Anuj Aggarwal [Mon, 12 Jul 2010 12:24:06 +0000 (17:54 +0530)]
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Takashi Iwai [Wed, 28 Jul 2010 12:21:55 +0000 (14:21 +0200)]
ALSA: hda - Fix pin-detection of Nvidia HDMI
The behavior of Nvidia HDMI codec regarding the pin-detection unsol events
is based on the old HD-audio spec, i.e. PD bit indicates only the update
and doesn't show the current state. Since the current code assumes the
new behavior, the pin-detection doesn't work relialby with these h/w.
This patch adds a flag for indicating the old spec, and fixes the issue
by checking the pin-detection explicitly for such hardware.
Tested-by: Wei Ni <wni@nvidia.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Torvalds [Tue, 27 Jul 2010 21:32:59 +0000 (14:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: Pass the correct end of buffer to p9stat_read
Jon Povey [Tue, 27 Jul 2010 20:18:06 +0000 (13:18 -0700)]
gpio: fix spurious printk when freeing a gpio
When freeing a gpio that has not been exported, gpio_unexport() prints a
debug message when it should just fall through silently.
Example spurious message:
gpio_unexport: gpio0 status -22
Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Uwe Kleine-K?nig <u.kleine-koenig@pengutronix.de>
Cc: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Anton Vorontsov [Tue, 27 Jul 2010 20:18:05 +0000 (13:18 -0700)]
edac: mpc85xx: fix coldplug/hotplug module autoloading
The MPC85xx EDAC driver is missing module device aliases, so the driver
won't load automatically on boot. This patch fixes the issue by adding
proper MODULE_DEVICE_TABLE() macros.
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Dave Jiang <djiang@mvista.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rudolf Marek [Tue, 27 Jul 2010 20:18:02 +0000 (13:18 -0700)]
drivers/rtc/rtc-rx8581.c: fix setdatetime
Fix the logic while writing new date/time to the chip. The driver
incorrectly wrote back register values to different registers and even
with wrong mask. The patch adds clearing of the VLF register, which
should be cleared if all date/time values are set.
Signed-off-by: Rudolf Marek <rudolf.marek@sysgo.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: Martyn Welch <martyn.welch@gefanuc.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jason Baron [Tue, 27 Jul 2010 20:18:01 +0000 (13:18 -0700)]
dynamic debug: move ddebug_remove_module() down into free_module()
The command
echo "file ec.c +p" >/sys/kernel/debug/dynamic_debug/control
causes an oops.
Move the call to ddebug_remove_module() down into free_module(). In this
way it should be called from all error paths. Currently, we are missing
the remove if the module init routine fails.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Reported-by: Thomas Renninger <trenn@suse.de>
Tested-by: Thomas Renninger <trenn@suse.de>
Cc: <stable@kernel.org> [2.6.32+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yehuda Sadeh [Tue, 27 Jul 2010 20:11:08 +0000 (13:11 -0700)]
ceph: use complete_all and wake_up_all
This fixes an issue triggered by running concurrent syncs. One of the syncs
would go through while the other would just hang indefinitely. In any case, we
never actually want to wake a single waiter, so the *_all functions should
be used.
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
Latchesar Ionkov [Mon, 19 Jul 2010 20:40:03 +0000 (15:40 -0500)]
9p: Pass the correct end of buffer to p9stat_read
Pass the correct end of the buffer to p9stat_read.
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Martin Schwidefsky [Tue, 27 Jul 2010 17:29:38 +0000 (19:29 +0200)]
[S390] etr: fix clock synchronization race
The etr events switch-to-local and sync-check disable the synchronous clock
and schedule a work queue that tries to get the clock back into sync.
If another switch-to-local or sync-check event occurs while the work queue
function etr_work_fn still runs the eacr.es bit and the clock_sync_word can
become inconsistent because check_sync_clock only uses the clock_sync_word
to determine if the clock is in sync or not. The second pass of the
etr_work_fn will reset the eacr.es bit but will leave the clock_sync_word
intact. Fix this race by moving the reset of the eacr.es bit into the
switch-to-local and sync-check functions and by checking the eacr.es bit
as well to decide if the clock needs to be synced.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Tue, 27 Jul 2010 17:29:37 +0000 (19:29 +0200)]
[S390] Fix IRQ tracing in case of PER
In case user space is single stepped (PER) the program check handler
claims too early that IRQs are enabled on the return path.
Subsequent checks will notice that the IRQ mask in the PSW and
what lockdep thinks the IRQ mask should be do not correlate and
therefore will print a warning to the console and disable lockdep.
Fix this by doing all the work within the correct context.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Anton Blanchard [Tue, 13 Jul 2010 04:59:29 +0000 (14:59 +1000)]
[SCSI] ibmvscsi: Fix oops when an interrupt is pending during probe
A driver needs to be ready to take an interrupt as soon as it registers
an interrupt handler. I noticed the following oops when testing kdump:
ipr: IBM Power RAID SCSI Device Driver version: 2.5.0 (February 11, 2010)
ibmvscsi
30000002: SRP_VERSION: 16.a
ibmvscsi
30000002: SRP_VERSION: 16.a
Unable to handle kernel paging request for data at address 0x00000000
...
pc:
c000000004085e34: .tasklet_action+0xf4/0x1dc
...
c000000004086fe4 .__do_softirq+0x16c/0x2c0
c00000000403138c .call_do_softirq+0x14/0x24
c00000000400ee14 .do_softirq+0xa0/0x104
c00000000408690c .irq_exit+0x70/0xd0
c00000000400f190 .do_IRQ+0x214/0x2a8
c000000004004804 hardware_interrupt_entry+0x1c/0x98
--- Exception: 501 (Hardware Interrupt) at
c00000000400c544 .raw_local_irq_restore+0x48/0x54
c00000000465d2a8 ._raw_spin_unlock_irqrestore+0x74/0xa0
c0000000040e7f00 .__setup_irq+0x2ec/0x3f0
c0000000040e8198 .request_threaded_irq+0x194/0x22c
c00000000446d854 .rpavscsi_init_crq_queue+0x284/0x3f0
c00000000446c764 .ibmvscsi_probe+0x688/0x710
c00000000402903c .vio_bus_probe+0x37c/0x3e4
c000000004403f10 .driver_probe_device+0xec/0x1b8
c000000004404088 .__driver_attach+0xac/0xf4
c000000004403184 .bus_for_each_dev+0x98/0x104
c000000004403c98 .driver_attach+0x40/0x60
c0000000044026f0 .bus_add_driver+0x154/0x324
c0000000044045d0 .driver_register+0xe8/0x1ac
c00000000402b2a8 .vio_register_driver+0x54/0x74
c000000004933ea4 .ibmvscsi_module_init+0x80/0xc0
c000000004009834 .do_one_initcall+0x98/0x1d8
c0000000049005b4 .kernel_init+0x27c/0x33c
c000000004031550 .kernel_thread+0x54/0x70
srp_task needs to be setup before request_irq. The patch below fixes the oops.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Linus Torvalds [Tue, 27 Jul 2010 16:23:39 +0000 (09:23 -0700)]
Merge branch 'urgent' of git://git./linux/kernel/git/paulus/perf
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/perf:
perf, powerpc: Use perf_sample_data_init() for the FSL code
Linus Torvalds [Tue, 27 Jul 2010 16:22:55 +0000 (09:22 -0700)]
Merge git://git.infradead.org/users/cbou/battery-2.6.35
* git://git.infradead.org/users/cbou/battery-2.6.35:
ds2782_battery: Rename get_current to fix build failure / name conflict
Linus Torvalds [Tue, 27 Jul 2010 16:21:00 +0000 (09:21 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
s2io: fixing DBG_PRINT() macro
ath9k: fix dma direction for map/unmap in ath_rx_tasklet
net: dev_forward_skb should call nf_reset
net sched: fix race in mirred device removal
tun: avoid BUG, dump packet on GSO errors
bonding: set device in RLB ARP packet handler
wimax/i2400m: Add PID & VID for Intel WiMAX 6250
ipv6: Don't add routes to ipv6 disabled interfaces.
net: Fix skb_copy_expand() handling of ->csum_start
net: Fix corruption of skb csum field in pskb_expand_head() of net/core/skbuff.c
macvtap: Limit packet queue length
ixgbe/igb: catch invalid VF settings
bnx2x: Advance a module version
bnx2x: Protect statistics ramrod and sequence number
bnx2x: Protect a SM state change
wireless: use netif_rx_ni in ieee80211_send_layer2_update
Peter Zijlstra [Fri, 9 Jul 2010 08:21:21 +0000 (10:21 +0200)]
perf, powerpc: Use perf_sample_data_init() for the FSL code
We should use perf_sample_data_init() to initialize struct
perf_sample_data. As explained in the description of commit
dc1d628a
("perf: Provide generic perf_sample_data initialization"), it is
possible for userspace to get the kernel to dereference data.raw,
so if it is not initialized, that means that unprivileged userspace
can possibly oops the kernel. Using perf_sample_data_init makes sure
it gets initialized to NULL.
This conversion should have been included in commit
dc1d628a, but it
got missed.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Axel Lin [Mon, 26 Jul 2010 02:41:58 +0000 (10:41 +0800)]
wm8350-regulator: fix wm8350_register_regulator error handling
In the case of platform_device_add() fail, we should call
platform_device_put() instead of platform_device_del()
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Axel Lin [Mon, 26 Jul 2010 07:34:14 +0000 (15:34 +0800)]
ab3100: fix off-by-one value range checking for voltage selector
We use voltage selector as an array index for typ_voltages.
Thus the valid range for voltage selector should be 0..voltages_len-1.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Linus Torvalds [Mon, 26 Jul 2010 23:02:07 +0000 (16:02 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Do not try to disable hpet if it hasn't been initialized before
x86, i8259: Only register sysdev if we have a real 8259 PIC
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / log