linux-toradex.git/lib, branch T20_LinuxImageV2.0Beta1_20121218

lib: devres: add convenience function to remap a resource

2012-04-05T16:12:15+00:00

Almost every platform_driver does the three steps get_resource,
request_mem_region, ioremap. This does not only lead to a lot of code
duplication, but also a huge number of similar error strings and
inconsistent error codes on failure. So, introduce a helper function
which simplifies remapping a resource and make it hard to do something
wrong and add documentation for it.

Signed-off-by: Wolfram Sang 
Acked-by: Grant Likely 
Acked-by: Tejun Heo 
Signed-off-by: Greg Kroah-Hartman 
(cherry picked from mainline commit
	72f8c0bfa0de64c68ee59f40eb9b2683bffffbb0)

Change-Id: I600c5200104e234d42ca396e50853133b3ab4b1f
Signed-off-by: Laxman Dewangan 
Reviewed-on: http://git-master/r/94533
Reviewed-by: Automatic_Commit_Validation_User

lib: genalloc: Add API to allocate at specified addr.

2012-01-20T00:15:08+00:00

Add API to allocate at specified alloc address.

Change-Id: I188e5430220c050026c6a3e17a586012d9a9fa04
Signed-off-by: Krishna Reddy 
Reviewed-on: http://git-master/r/74468
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Stephen Warren

Allow CONFIG_STACKTRACE to be enabled by itself.

2011-12-01T05:38:21+00:00

This allows us to get a kernel stacktrace for a thread though /proc.
Also enable it by default.

Change-Id: If8c21cd02feaf9863f4841ace524fa30c7328d49
Signed-off-by: Arve Hjønnevåg

netlink: validate NLA_MSECS length

2011-11-11T17:44:43+00:00

commit c30bc94758ae2a38a5eb31767c1985c0aae0950b upstream.

L2TP for example uses NLA_MSECS like this:
policy:
        [L2TP_ATTR_RECV_TIMEOUT]        = { .type = NLA_MSECS, },
code:
        if (info->attrs[L2TP_ATTR_RECV_TIMEOUT])
                cfg.reorder_timeout = nla_get_msecs(info->attrs[L2TP_ATTR_RECV_TIMEOUT]);

As nla_get_msecs() is essentially nla_get_u64() plus the
conversion to a HZ-based value, this will not properly
reject attributes from userspace that aren't long enough
and might overrun the message.

Add NLA_MSECS to the attribute minlen array to check the
size properly.

Cc: Thomas Graf 
Signed-off-by: Johannes Berg 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

kobj_uevent: Ignore if some listeners cannot handle message

2011-11-11T17:42:50+00:00

commit ebf4127cd677e9781b450e44dfaaa1cc595efcaa upstream.

kobject_uevent() uses a multicast socket and should ignore
if one of listeners cannot handle messages or nobody is
listening at all.

Easily reproducible when a process in system is cloned
with CLONE_NEWNET flag.

(See also http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/5256)

Signed-off-by: Milan Broz 
Acked-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

XZ: Fix incorrect XZ_BUF_ERROR

2011-09-21T20:39:59+00:00

xz_dec_run() could incorrectly return XZ_BUF_ERROR if all of the
following was true:

 - The caller knows how many bytes of output to expect and only provides
   that much output space.

 - When the last output bytes are decoded, the caller-provided input
   buffer ends right before the LZMA2 end of payload marker.  So LZMA2
   won't provide more output anymore, but it won't know it yet and thus
   won't return XZ_STREAM_END yet.

 - A BCJ filter is in use and it hasn't left any unfiltered bytes in the
   temp buffer.  This can happen with any BCJ filter, but in practice
   it's more likely with filters other than the x86 BCJ.

This fixes  where
Squashfs thinks that a valid file system is corrupt.

This also fixes a similar bug in single-call mode where the uncompressed
size of a block using BCJ + LZMA2 was 0 bytes and caller provided no
output space.  Many empty .xz files don't contain any blocks and thus
don't trigger this bug.

This also tweaks a closely related detail: xz_dec_bcj_run() could call
xz_dec_lzma2_run() to decode into temp buffer when it was known to be
useless.  This was harmless although it wasted a minuscule number of CPU
cycles.

Signed-off-by: Lasse Collin 
Cc: stable 
Signed-off-by: Linus Torvalds

lib/sha1.c: quiet sparse noise about symbol not declared

2011-09-13T23:09:41+00:00

Include  to pickup the declarations for sha_transform
and sha_init to quite the sparse noise:

  warning: symbol 'sha_transform' was not declared. Should it be static?
  warning: symbol 'sha_init' was not declared. Should it be static?

Signed-off-by: H Hartley Sweeten 
Acked-by: Mandeep Singh Baines 
Signed-off-by: Linus Torvalds

bitops: Move find_next_bit.o from lib-y to obj-y

2011-08-30T17:12:05+00:00

If there are no builtin users of find_next_bit_le() and
find_next_zero_bit_le(), these functions are not present in the kernel
image, causing m68k allmodconfig to fail with:

  ERROR: "find_next_zero_bit_le" [fs/ufs/ufs.ko] undefined!
  ERROR: "find_next_bit_le" [fs/udf/udf.ko] undefined!
  ...

This started to happen after commit 171d809df189 ("m68k: merge mmu and
non-mmu bitops.h"), as m68k had its own inline versions before.

commit 63e424c84429 ("arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,
BIT_LE, LAST_BIT}") added find_last_bit.o to obj-y (so it's always
included), but find_next_bit.o to lib-y (so it gets removed by the
linker if there are no builtin users).

Signed-off-by: Geert Uytterhoeven 
Cc: Akinobu Mita 
Cc: Greg Ungerer 
Cc: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2011-08-07T05:12:37+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: Compute protocol sequence numbers and fragment IDs using MD5.
  crypto: Move md5_transform to lib/md5.c

crypto: Move md5_transform to lib/md5.c

2011-08-07T01:32:45+00:00

We are going to use this for TCP/IP sequence number and fragment ID
generation.

Signed-off-by: David S. Miller