Skip to content

L
linux-davinci
Switch branch/tag
  1. 26 Nov, 2008 3 commits
    • Kay Sievers's avatar
      parisc: struct device - replace bus_id with dev_name(), dev_set_name() · 90f67130
      Kay Sievers authored 
      (I did not compile or test it, please let me know, or help fixing
 it, if something is wrong with the conversion)

This patch is part of a larger patch series which will remove
the "char bus_id[20]" name string from struct device. The device
name is managed in the kobject anyway, and without any size
limitation, and just needlessly copied into "struct device".

To set and read the device name dev_name(dev) and dev_set_name(dev)
must be used. If your code uses static kobjects, which it shouldn't
do, "const char *init_name" can be used to statically provide the
name the registered device should have. At registration time, the
init_name field is cleared, to enforce the use of dev_name(dev) to
access the device name at a later time.

We need to get rid of all occurrences of bus_id in the entire tree
to be able to enable the new interface. Please apply this patch,
and possibly convert any remaining remaining occurrences of bus_id.

We want to submit a patch to -next, which will remove bus_id from
"struct device", to find the remaining pieces to convert, and finally
switch over to the new api, which will remove the 20 bytes array
and does no longer have a size limitation.

Thanks,
Kay

Cc: Matthew Wilcox <matthew@wil.cx>
Cc: linux-parisc@vger.kernel.org
Acked-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: default avatarKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: default avatarKyle McMartin <kyle@mcmartin.ca>
      90f67130
    • Helge Deller's avatar
      parisc: fix kernel crash when unwinding a userspace process · 7a3f5134
      Helge Deller authored 
      Any user on existing parisc 32- and 64bit-kernels can easily crash
the kernel and as such enforce a DSO.
A simple testcase is available here:
        http://gsyprf10.external.hp.com/~deller/crash.tgz

The problem is introduced by the fact, that the handle_interruption()
crash handler calls the show_regs() function, which in turn tries to
unwind the stack by calling parisc_show_stack().  Since the stack contains
userspace addresses, a try to unwind the stack is dangerous and useless
and leads to the crash.

The fix is trivial: For userspace processes
a) avoid to unwind the stack, and
b) avoid to resolve userspace addresses to kernel symbol names.

While touching this code, I converted print_symbol() to %pS
printk formats and made parisc_show_stack() static.

An initial patch for this was written by Kyle McMartin back in August:
http://marc.info/?l=linux-parisc&m=121805168830283&w=2

Compile and run-tested with a 64bit parisc kernel.
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: <stable@kernel.org>		[2.6.25.x, 2.6.26.x, 2.6.27.x, earlier...]
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarKyle McMartin <kyle@mcmartin.ca>
      7a3f5134
    • Geert Uytterhoeven's avatar
      parisc: __kernel_time_t is always long · 9860d1b0
      Geert Uytterhoeven authored 
      __kernel_time_t is always long on PA-RISC, irrespective of CONFIG_64BIT,
hence move it out of the #ifdef CONFIG_64BIT / #else / #endif block.
Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: default avatarKyle McMartin <kyle@mcmartin.ca>
      9860d1b0
  3. 21 Nov, 2008 1 commit
    • Linus Torvalds's avatar
      Merge master.kernel.org:/home/rmk/linux-2.6-arm · ed313489
      Linus Torvalds authored 
      * master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5330/1: mach-pxa: Fixup reset for systems using reboot=cold or other strings
  [ARM] pxa: fix incorrect PCMCIA PSKTSEL pin configuration for spitz
  [ARM] pxa: fix I2C controller device being registered twice on Akita
  pxafb: only initialize the smart panel thread when dealing with a smartpanel
  pxafb: introduce LCD_TYPE_MASK and use it.
      ed313489
  5. 20 Nov, 2008 36 commits