linux-stable.git/arch/m68k, branch linux-3.3.y

m68k/mac: Add missing platform check before registering platform devices

2012-04-13T16:13:52+00:00

commit 6cfeba53911d6d2f17ebbd1246893557d5ff5aeb upstream.

On multi-platform kernels, the Mac platform devices should be registered
when running on Mac only. Else it may crash later.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

m68k: Do not set global share for non-kernel shared pages

2012-02-07T01:25:57+00:00

If the SG bit is set in MMUTR the page is accessible for all
userspace processes (ignoring the ASID). So a process might randomly
access a page from a different process which had a shared page
(from shared memory) in its context.

Signed-off-by: Alexander Stein 
Signed-off-by: Greg Ungerer

m68k: Add shared bit to Coldfire kernel page entries

2012-02-07T01:04:00+00:00

We had problems accessing our NOR flash trough mtd. The system always got
stuck at attaching UBI using ubiattach if booted from NFS or after mounting
squashfs as rootfs directly from NOR flash.
After some testing of the new changes introduced from v3.2-rc1 to v3.2-rc7
we had to apply the following patch to get mtd working again.

[gerg: The problem was ultimately caused by allocated kernel pages not having
the shared (SG) bit set. Without the SG bit set the MMU will look for page
matches incorporating the ASID as well. Things like module regions allocated
using vmalloc would fault when other processes run. ]

Signed-off-by: Alexander Stein 
Signed-off-by: Greg Ungerer

m68knommu: fix syscall tracing stuck process

2012-02-07T01:03:53+00:00

The return path from an exception was checking too many bits in the
thread_info->flags, and getting stuck calling do_signal(). There was
no work to do, we should only be checking the low 8 bits (as per comments
and definitions in arch/m68k/include/asm/thread_info.h).

This fixes the stuck process problem when using strace.

Signed-off-by: Greg Ungerer

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

2012-01-26T20:43:57+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Fix assembler constraint to prevent overeager gcc optimisation
  mac_esp: rename irq
  mac_scsi: dont enable mac_scsi irq before requesting it
  macfb: fix black and white modes
  m68k/irq: Remove obsolete IRQ_FLG_* definitions

Fix up trivial conflict in arch/m68k/kernel/process_mm.c as per Geert.

m68k: Fix assembler constraint to prevent overeager gcc optimisation

2012-01-22T13:50:20+00:00

Passing the address of a variable as an operand to an asm statement
doesn't mark the value of this variable as used, so gcc may optimize its
initialisation away.  Fix this by using the "m" constraint instead.

Signed-off-by: Andreas Schwab 
Signed-off-by: Geert Uytterhoeven 
Cc: stable@vger.kernel.org

m68k/irq: Remove obsolete IRQ_FLG_* definitions

2012-01-22T13:50:02+00:00

The m68k core irq code stopped honoring these flags during the irq
restructuring in 2006.

Signed-off-by: Geert Uytterhoeven

treewide: convert uses of ATTRIB_NORETURN to __noreturn

2012-01-13T04:13:03+00:00

Use the more commonly used __noreturn instead of ATTRIB_NORETURN.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Joe Perches 
Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Cc: Haavard Skinnemoen 
Cc: Hans-Christian Egtvedt 
Cc: Tony Luck 
Cc: Fenghua Yu 
Acked-by: Geert Uytterhoeven 
Acked-by: Ralf Baechle 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Cc: Chris Metcalf 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

treewide: remove useless NORET_TYPE macro and uses

2012-01-13T04:13:03+00:00

It's a very old and now unused prototype marking so just delete it.

Neaten panic pointer argument style to keep checkpatch quiet.

Signed-off-by: Joe Perches 
Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Cc: Haavard Skinnemoen 
Cc: Hans-Christian Egtvedt 
Cc: Tony Luck 
Cc: Fenghua Yu 
Acked-by: Geert Uytterhoeven 
Acked-by: Ralf Baechle 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Cc: Chris Metcalf 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cpu: Register a generic CPU device on architectures that currently do not

2012-01-11T23:50:11+00:00

frv, h8300, m68k, microblaze, openrisc, score, um and xtensa currently
do not register a CPU device.  Add the config option GENERIC_CPU_DEVICES
which causes a generic CPU device to be registered for each present CPU,
and make all these architectures select it.

Richard Weinberger  covered UML and suggested using
per_cpu.

Signed-off-by: Ben Hutchings 
Signed-off-by: Linus Torvalds