linux-stable.git/drivers, branch v3.8.2

efivarfs: guid part of filenames are case-insensitive

2013-03-03T22:03:40+00:00

commit da27a24383b2b10bf6ebd0db29b325548aafecb4 upstream.

It makes no sense to treat the following filenames as unique,

	VarName-abcdefab-abcd-abcd-abcd-abcdefabcdef
	VarName-ABCDEFAB-ABCD-ABCD-ABCD-ABCDEFABCDEF
	VarName-ABcDEfAB-ABcD-ABcD-ABcD-ABcDEfABcDEf
	VarName-aBcDEfAB-aBcD-aBcD-aBcD-aBcDEfaBcDEf
	... etc ...

since the guid will be converted into a binary representation, which
has no case.

Roll our own dentry operations so that we can treat the variable name
part of filenames ("VarName" in the above example) as case-sensitive,
but the guid portion as case-insensitive. That way, efivarfs will
refuse to create the above files if any one already exists.

Reported-by: Lingzhu Xiang 
Cc: Matthew Garrett 
Cc: Jeremy Kerr 
Cc: Al Viro 
Signed-off-by: Matt Fleming 
Signed-off-by: Greg Kroah-Hartman

efivarfs: Validate filenames much more aggressively

2013-03-03T22:03:40+00:00

commit 47f531e8ba3bc3901a0c493f4252826c41dea1a1 upstream.

The only thing that efivarfs does to enforce a valid filename is
ensure that the name isn't too short. We need to strongly sanitise any
filenames, not least because variable creation is delayed until
efivarfs_file_write(), which means we can't rely on the firmware to
inform us of an invalid name, because if the file is never written to
we'll never know it's invalid.

Perform a couple of steps before agreeing to create a new file,

  * hex_to_bin() returns a value indicating whether or not it was able
    to convert its arguments to a binary representation - we should
    check it.

  * Ensure that the GUID portion of the filename is the correct length
    and format.

  * The variable name portion of the filename needs to be at least one
    character in size.

Reported-by: Lingzhu Xiang 
Cc: Matthew Garrett 
Cc: Jeremy Kerr 
Cc: Al Viro 
Signed-off-by: Matt Fleming 
Signed-off-by: Greg Kroah-Hartman

ACPI: Overriding ACPI tables via initrd only works with an initrd and on X86

2013-03-03T22:03:39+00:00

commit 565d956a7e191e95d81f515196951715f2616e6b upstream.

Reflect this dependency in Kconfig, to prevent build failures.

Shorten the config description as suggested by Borislav Petkov.

Finding a suitable memory area to store the modified table(s) has been
taken over from arch/x86/kernel/setup.c and makes use of max_low_pfn_mapped:
memblock_find_in_range(0, max_low_pfn_mapped,...)
This one is X86 specific. It may not be hard to extend this functionality
for other ACPI aware architectures if there is need for.

For now make this feature only available for X86 to avoid build failures on
IA64, compare with:
https://bugzilla.kernel.org/show_bug.cgi?id=54091

Signed-off-by: Thomas Renninger 
Link: http://lkml.kernel.org/r/1361538742-67599-3-git-send-email-trenn@suse.de
Signed-off-by: H. Peter Anvin 
Signed-off-by: Greg Kroah-Hartman

usb hid quirks for Masterkit MA901 usb radio

2013-03-03T22:03:39+00:00

commit 0322bd3980b3ebf7dde8474e22614cb443d6479a upstream.

Don't let Masterkit MA901 USB radio be handled by usb hid drivers.
This device will be handled by radio-ma901.c driver.

Signed-off-by: Alexey Klimov 
Acked-by: Hans Verkuil 
Acked-by: Jiri Kosina 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

ahci: Add Device IDs for Intel Wellsburg PCH

2013-03-03T22:03:39+00:00

commit 151743fd8dfb02956c5184b5f4f0f42677eb75bc upstream.

This patch adds the AHCI-mode SATA Device IDs for the Intel Wellsburg PCH

Signed-off-by: James Ralston 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

ahci: AHCI-mode SATA patch for Intel Avoton DeviceIDs

2013-03-03T22:03:39+00:00

commit 29e674dd5c8e781589f09c3ee139c80f6da274e4 upstream.

This patch adds the AHCI and RAID-mode SATA DeviceIDs for the Intel Avoton SOC.

Signed-off-by: Seth Heasley 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

ata_piix: Add Device IDs for Intel Wellsburg PCH

2013-03-03T22:03:39+00:00

commit 3aee8bc52c415aba8148f144e5e5359b0fd75dd1 upstream.

This patch adds the IDE-mode SATA Device IDs for the Intel Wellsburg PCH

Signed-off-by: James Ralston 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

ata_piix: IDE-mode SATA patch for Intel Avoton DeviceIDs

2013-03-03T22:03:39+00:00

commit aaa515277db9585eeb4fdeb4637b9f9df50a1dd9 upstream.

This patch adds the IDE-mode SATA DeviceIDs for the Intel Avoton SOC.

Signed-off-by: Seth Heasley 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

staging: comedi: check s->async for poll(), read() and write()

2013-03-03T22:03:39+00:00

commit cc400e185c07c15a42d2635995f422de5b94b696 upstream.

Some low-level comedi drivers (incorrectly) point `dev->read_subdev` or
`dev->write_subdev` to a subdevice that does not support asynchronous
commands.  Comedi's poll(), read() and write() file operation handlers
assume these subdevices do support asynchronous commands.  In
particular, they assume `s->async` is valid (where `s` points to the
read or write subdevice), which it won't be if it has been set
incorrectly.  This can lead to a NULL pointer dereference.

Check `s->async` is non-NULL in `comedi_poll()`, `comedi_read()` and
`comedi_write()` to avoid the bug.

Signed-off-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman

ACPI: Add DMI entry for Sony VGN-FW41E_H

2013-03-03T22:03:39+00:00

commit 66f2fda93b67fa744d406e6dcf443f67bac204b6 upstream.

This patch adds a quirk to allow the Sony VGN-FW41E_H to suspend/resume
properly.

References: http://bugs.launchpad.net/bugs/1113547
Signed-off-by: Joseph Salisbury 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Greg Kroah-Hartman