linux.git/arch/tile/kernel, branch v3.8-rc2

Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2012-12-19T15:55:08+00:00

Pull module update from Rusty Russell:
 "Nothing all that exciting; a new module-from-fd syscall for those who
  want to verify the source of the module (ChromeOS) and/or use standard
  IMA on it or other security hooks."

* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  MODSIGN: Fix kbuild output when using default extra_certificates
  MODSIGN: Avoid using .incbin in C source
  modules: don't hand 0 to vmalloc.
  module: Remove a extra null character at the top of module->strtab.
  ASN.1: Use the ASN1_LONG_TAG and ASN1_INDEFINITE_LENGTH constants
  ASN.1: Define indefinite length marker constant
  moduleparam: use __UNIQUE_ID()
  __UNIQUE_ID()
  MODSIGN: Add modules_sign make target
  powerpc: add finit_module syscall.
  ima: support new kernel module syscall
  add finit_module syscall to asm-generic
  ARM: add finit_module syscall to ARM
  security: introduce kernel_module_from_file hook
  module: add flags arg to sys_finit_module()
  module: add syscall to load module from fd

Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2012-12-18T23:05:30+00:00

Pull tile updates from Chris Metcalf:
 "These are a smattering of minor changes from Tilera and other folks,
  mostly in the ptrace area."

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: set CORE_DUMP_USE_REGSET on tile
  arch/tile: implement arch_ptrace using user_regset on tile
  arch/tile: implement user_regset interface on tile
  arch/tile: clean up tile-specific PTRACE_SETOPTIONS
  arch/tile: provide PT_FLAGS_COMPAT value in pt_regs
  tile/PCI: use for_each_pci_dev to simplify the code
  tilegx: remove __init from pci fixup hook

arch/tile: implement arch_ptrace using user_regset on tile

2012-12-18T19:53:14+00:00

This patch changes arch_ptrace on tile so that it uses user_regset
to implement the PTRACE_GETREGS and PTRACE_SETREGS operations.

Signed-off-by: Simon Marchi 
Signed-off-by: Chris Metcalf

arch/tile: implement user_regset interface on tile

2012-12-18T19:53:06+00:00

This is a basic implementation of user_regset for the tile
architecture. It reuses the basic blocks that were already there.

Signed-off-by: Simon Marchi 
Signed-off-by: Chris Metcalf

compat: generic compat_sys_sched_rr_get_interval() implementation

2012-12-18T01:15:18+00:00

This function is used by sparc, powerpc tile and arm64 for compat support.
 The patch adds a generic implementation with a wrapper for PowerPC to do
the u32->int sign extension.

The reason for a single patch covering powerpc, tile, sparc and arm64 is
to keep it bisectable, otherwise kernel building may fail with mismatched
function declarations.

Signed-off-by: Catalin Marinas 
Acked-by: Chris Metcalf   [for tile]
Acked-by: David S. Miller 
Acked-by: Arnd Bergmann 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Alexander Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

arch/tile: clean up tile-specific PTRACE_SETOPTIONS

2012-12-14T17:56:54+00:00

Use the newer idioms for setting PTRACE_O_xxx and PT_TRACE_xxx flags.
Only set/clear tile-specific flags if the generic routine returns
success, since otherwise we want to avoid setting any flags at all.
Atomically update the ptrace flags with the new values.  Eliminate
the PT_TRACE_MASK_TILE bitmask and just shift PTRACE_O_MASK_TILE.
Add a BUILD_BUG_ON to avoid overlapping with generic bits.

Acked-by: Oleg Nesterov 
Signed-off-by: Chris Metcalf

modules: don't hand 0 to vmalloc.

2012-12-14T02:36:43+00:00

In commit d0a21265dfb5fa8a David Rientjes unified various archs'
module_alloc implementation (including x86) and removed the graduitous
shortcut for size == 0.

Then, in commit de7d2b567d040e3b, Joe Perches added a warning for
zero-length vmallocs, which can happen without kallsyms on modules
with no init sections (eg. zlib_deflate).

Fix this once and for all; the module code has to handle zero length
anyway, so get it right at the caller and remove the now-gratuitous
checks within the arch-specific module_alloc implementations.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42608
Reported-by: Conrad Kostecki 
Cc: David Rientjes 
Cc: Joe Perches 
Signed-off-by: Rusty Russell

arch/tile: provide PT_FLAGS_COMPAT value in pt_regs

2012-12-13T16:34:24+00:00

This flag is set for ptrace GETREGS or PEEKUSER for processes
that are COMPAT, i.e. 32-bit.  This allows things like strace
to easily discover what personality to use, for example.

Acked-by: Oleg Nesterov 
Signed-off-by: Chris Metcalf

tile/PCI: use for_each_pci_dev to simplify the code

2012-12-12T22:22:18+00:00

Use for_each_pci_dev to simplify the code.

Signed-off-by: Wei Yongjun 
Signed-off-by: Chris Metcalf

tilegx: remove __init from pci fixup hook

2012-12-12T22:22:17+00:00

Support having the PCI bus be removed at runtime and rediscovered.
gregkh@linuxfoundation.org argued for removing __init rather
than converting it to __devinit.

Signed-off-by: Chris Metcalf