Commit Graph

288 Commits

Author SHA1 Message Date
Sam Ravnborg
cfb2a494bb m68k: fix recursive dependency in Kconfig
We had a recursive dependency between MMU_MOTOROLA and MMU_SUN3
Fix it by dropping the unused dependencies on MMU_MOTOROLA.

MMU_MOTOROLA is set to y only using select so any dependencies
are anyway ignored.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
2009-01-02 20:43:20 +01:00
Al Viro
18d8fda7c3 take init_fs to saner place
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31 18:07:42 -05:00
Finn Thain
646819e862 m68k: fix trigraph ignored warning in setox.S
Fix the warning: trigraph ??/ ignored, use -trigraphs to enable
caused by the recent removal of -traditional option.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2008-12-28 20:00:05 +01:00
Finn Thain
746e8d3b22 m68k: mac baboon interrupt enable/disable
No-one seems to know how to mask individual baboon interrupts, so we just 
mask the umbrella IRQ. This will work as long as only the IDE driver uses 
the baboon chip (it can't deadlock). Use mac_enable_irq/mac_disable_irq 
rather than enable_irq/disable_irq because the latter routines count the 
depth of nested calls which triggers a warning and call trace because 
IRQ_NUBUS_C is enabled twice in a row (once when the baboon handler is 
registered, and once when the IDE IRQ is registered).

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2008-12-28 20:00:04 +01:00
Finn Thain
429dbf53bc m68k: machw.h cleanup
Remove some more cruft from machw.h and drop the #include where it isn't
needed.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2008-12-28 20:00:03 +01:00
Finn Thain
4a973592d6 m68k: Mac via cleanup and commentry
No behavioural changes, just cleanups and better documentation.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2008-12-28 20:00:01 +01:00
Finn Thain
40f7f9c1c2 m68k: Reinstate mac rtc
Reinstate the Mac hardware clock for CUDA ADB and Mac II ADB models.
It doesn't work properly on Mac IIsi ADB and PMU ADB yet, so leave them 
out.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2008-12-28 20:00:00 +01:00
Geert Uytterhoeven
ae4e1434a0 m68k: Update defconfigs for 2.6.28-rc7
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2008-12-02 20:58:26 +01:00
Geert Uytterhoeven
27123cbc26 m68k: Fix off-by-one in m68k_setup_user_interrupt()
commit 69961c3752 ("[PATCH] m68k/Atari:
Interrupt updates") added a BUG_ON() with an incorrect upper bound
comparison, which causes an early crash on VME boards, where IRQ_USER is
8, cnt is 192 and NR_IRQS is 200.

Reported-by: Stephen N Chivers <schivers@csc.com.au>
Tested-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-15 11:36:06 -08:00
Alexey Dobriyan
4c150f6c30 proc: move /proc/stram to m68k-specific code
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-23 14:25:35 +04:00
Alexey Dobriyan
813dcf7a6e proc: move /proc/hardware to m68k-specific code
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-23 14:24:03 +04:00
Huang Weiyi
d12a6f7f91 arch/m68k/bvme6000/rtc.c: remove duplicated include
Removed duplicated include file <linux/smp_lock.h> in
arch/m68k/bvme6000/rtc.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:34 -07:00
Matt Helsley
dc52ddc0e6 container freezer: implement freezer cgroup subsystem
This patch implements a new freezer subsystem in the control groups
framework.  It provides a way to stop and resume execution of all tasks in
a cgroup by writing in the cgroup filesystem.

The freezer subsystem in the container filesystem defines a file named
freezer.state.  Writing "FROZEN" to the state file will freeze all tasks
in the cgroup.  Subsequently writing "RUNNING" will unfreeze the tasks in
the cgroup.  Reading will return the current state.

* Examples of usage :

   # mkdir /containers/freezer
   # mount -t cgroup -ofreezer freezer  /containers
   # mkdir /containers/0
   # echo $some_pid > /containers/0/tasks

to get status of the freezer subsystem :

   # cat /containers/0/freezer.state
   RUNNING

to freeze all tasks in the container :

   # echo FROZEN > /containers/0/freezer.state
   # cat /containers/0/freezer.state
   FREEZING
   # cat /containers/0/freezer.state
   FROZEN

to unfreeze all tasks in the container :

   # echo RUNNING > /containers/0/freezer.state
   # cat /containers/0/freezer.state
   RUNNING

This is the basic mechanism which should do the right thing for user space
task in a simple scenario.

It's important to note that freezing can be incomplete.  In that case we
return EBUSY.  This means that some tasks in the cgroup are busy doing
something that prevents us from completely freezing the cgroup at this
time.  After EBUSY, the cgroup will remain partially frozen -- reflected
by freezer.state reporting "FREEZING" when read.  The state will remain
"FREEZING" until one of these things happens:

	1) Userspace cancels the freezing operation by writing "RUNNING" to
		the freezer.state file
	2) Userspace retries the freezing operation by writing "FROZEN" to
		the freezer.state file (writing "FREEZING" is not legal
		and returns EIO)
	3) The tasks that blocked the cgroup from entering the "FROZEN"
		state disappear from the cgroup's set of tasks.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: export thaw_process]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Tested-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:34 -07:00
Julia Lawall
79aa79bac9 arch/m68k/mm/kmap.c: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,l;
position p1,p2;
expression *ptr != NULL;
@@

(
if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S
|
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
..
if (x == NULL) S
)
<... when != x
     when != if (...) { <+...x...+> }
x->f = E
..>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:27 -07:00
Geert Uytterhoeven
da9870e477 m68k: init_irq_proc depends on CONFIG_PROC_FS
If CONFIG_PROC_FS is not set, I get:

| arch/m68k/kernel/ints.c:433: error: redefinition of 'init_irq_proc'
| include/linux/interrupt.h:438: error: previous definition of 'init_irq_proc' was here

This was introduced by commit 6168a702ab
("Declare init_irq_proc before we use it."), which replaced the #ifdef
protection of the init_irq_proc() call by a static inline dummy if
CONFIG_PROC_FS is not set.

Make init_irq_proc() depend on CONFIG_PROC_FS to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:27 -07:00
Adrian Bunk
2171a19a24 m68k: remove the dead PCI code
This patch removes the no longer used m68k PCI code.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:27 -07:00
Adrian Bunk
29c8a24672 m68k: Remove the broken Hades support
This patch removes the Hades support that was marked as BROKEN 5 years ago.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:27 -07:00
Geert Uytterhoeven
dec6d14da8 m68k: Add missing dma_sync_single_range_for_{cpu,device}()
| include/linux/ssb/ssb.h: In function 'ssb_dma_sync_single_range_for_cpu':
| include/linux/ssb/ssb.h:517: error: implicit declaration of function 'dma_sync_single_range_for_cpu'
| include/linux/ssb/ssb.h: In function 'ssb_dma_sync_single_range_for_device':
| include/linux/ssb/ssb.h:538: error: implicit declaration of function 'dma_sync_single_range_for_device'

Add the missing dma_sync_single_range_for_{cpu,device}(), and remove the
`inline' for the non-static function dma_sync_single_for_device().

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:27 -07:00
Geert Uytterhoeven
7ae4833af0 m68k: Define rtc_lock on Atari
The nvram and rtc-cmos drivers use the spinlock rtc_lock to protect against
concurrent accesses to the CMOS memory. As m68k doesn't support SMP or preempt
yet, the spinlock calls tend to get optimized away, but not for all
configurations, causing in some rare cases:

| ERROR: "rtc_lock" [drivers/rtc/rtc-cmos.ko] undefined!
| ERROR: "rtc_lock" [drivers/char/nvram.ko] undefined!

Add the spinlock to the Atari core code to avoid this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:27 -07:00
Geert Uytterhoeven
3e24fc947c m68k: Remove unused atari_kbd_translate()
If CONFIG_VT=n, I get:

| arch/m68k/atari/built-in.o: In function `atari_kbd_translate':
| arch/m68k/atari/atakeyb.c:640: undefined reference to `shift_state'

Just remove atari_kbd_translate(), as it's unused.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:26 -07:00
Geert Uytterhoeven
39d2d99d98 m68k: Modular Amiga keyboard needs key_maps
| ERROR: "key_maps" [drivers/input/keyboard/amikbd.ko] undefined!

Export key_maps in the Amiga core code, as its defined in an autogenerated
file (drivers/char/defkeymap.c)

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:26 -07:00
Geert Uytterhoeven
8c68383edf m68k: Reverse platform MMU logic so Sun 3 is last
Currently Sun 3 support is the first platform option, as the Sun 3 MMU is
incompatible with standard Motorola MMUs. However, this means that
`allmodconfig' enables support for Sun 3, and thus disables support for all
other platforms.

Reverse the logic and move Sun 3 last, so `allmodconfig' enables all
platforms except for Sun 3, increasing compile-coverage.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:26 -07:00
Roman Zippel
08a3db94f2 m68k: Add NOTES to init data so its discarded at boot
Add .note.gnu.build-id to init data so it's discarded at boot.

[Andreas Schwab] Use NOTES macro

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:26 -07:00
Roman Zippel
68abceef10 m68k: Put .bss at the end of the data section
Put .bss at the end of the data section

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:26 -07:00
Geert Uytterhoeven
8fbbae6573 m68k: Use new printk() extension %pS to print symbols
This changes the oops and backtrace code to use the new `%pS' printk()
extension to print out symbols rather than manually calling print_symbol.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:26 -07:00
Adrian Bunk
5b1d5f953b m68k: use bcd2bin/bin2bcd
This patch changes m68k to use the new bcd2bin/bin2bcd functions instead
of the obsolete BCD_TO_BIN/BIN_TO_BCD/BCD2BIN/BIN2BCD macros.

It also remove local bcd2bin/bin2bcd implementations
in favor of the global ones.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14 10:23:26 -07:00
David Woodhouse
e758936e02 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	include/asm-x86/statfs.h
2008-10-13 17:13:56 +01:00
Geert Uytterhoeven
9e7222c835 m68k: Update defconfigs for 2.6.27-rc6
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-09-10 14:15:29 -07:00
David Woodhouse
e17c6d5616 Introduce HAVE_AOUT symbol to remove hard-coded arch list for BINFMT_AOUT
HAVE_AOUT doesn't quite do the same thing as the recently removed
ARCH_SUPPORTS_AOUT config option. That was set even on platforms where
binfmt_aout isn't supported, although it's not entirely clear why.

So it's best just to introduce a new symbol, handled consistently with
other similar HAVE_xxx symbols; with a simple 'select' in the arch Kconfig.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-06 19:30:22 +01:00
David Woodhouse
6b213e1bc2 Remove redundant CONFIG_ARCH_SUPPORTS_AOUT
We don't need this any more; arguably we never really did.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-06 19:30:20 +01:00
Michael Schmitz
1136cf1106 m68k: atari_keyb_init operator precedence fix
Fix operator precedence bug in atari_keyb_init, which caused a failure on CT60

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-09-02 10:57:52 -07:00
Geert Uytterhoeven
0e7d5bb848 m68k{,nommu}: Wire up new system calls
Wire up for m68k{,nommu} the system calls that were added in the last merge
window:

 - 4006553b06 ("flag parameters: inotify_init")
 - ed8cae8ba0 ("flag parameters: pipe")
 - 336dd1f70f ("flag parameters: dup2")
 - a0998b50c3 ("flag parameters: epoll_create")
 - 9fe5ad9c8c ("flag parameters add-on: remove
						 epoll_create size param")
 - b087498eb5 ("flag parameters: eventfd")
 - 9deb27baed ("flag parameters: signalfd")

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-11 10:37:34 -07:00
Adrian Bunk
0e25f71061 remove unneeded #include <linux/ide.h>'s
This patch remove unneeded #include <linux/ide.h>'s.

It also adds a required #include <linux/interrupt.h> that was previously 
implicitely pulled by ide.h

Signed-off-by: Adrian Bunk <bunk@kernel.org>
[bart: revert change to tests/lkdtm.c (spotted by Stephen Rothwell)]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-05 18:17:00 +02:00
Johannes Weiner
969eefb516 m68k: use generic show_mem()
Remove arch-specific show_mem() in favor of the generic version.

This also removes the following redundant information display:

	- free pages, printed by show_free_areas()
	- pages in swapcache, printed by show_swap_cache_info()

where show_mem() calls show_free_areas(), which calls
show_swap_cache_info().

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-26 12:00:11 -07:00
Andrea Righi
27ac792ca0 PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures
On 32-bit architectures PAGE_ALIGN() truncates 64-bit values to the 32-bit
boundary. For example:

	u64 val = PAGE_ALIGN(size);

always returns a value < 4GB even if size is greater than 4GB.

The problem resides in PAGE_MASK definition (from include/asm-x86/page.h for
example):

#define PAGE_SHIFT      12
#define PAGE_SIZE       (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK       (~(PAGE_SIZE-1))
...
#define PAGE_ALIGN(addr)       (((addr)+PAGE_SIZE-1)&PAGE_MASK)

The "~" is performed on a 32-bit value, so everything in "and" with
PAGE_MASK greater than 4GB will be truncated to the 32-bit boundary.
Using the ALIGN() macro seems to be the right way, because it uses
typeof(addr) for the mask.

Also move the PAGE_ALIGN() definitions out of include/asm-*/page.h in
include/linux/mm.h.

See also lkml discussion: http://lkml.org/lkml/2008/6/11/237

[akpm@linux-foundation.org: fix drivers/media/video/uvc/uvc_queue.c]
[akpm@linux-foundation.org: fix v850]
[akpm@linux-foundation.org: fix powerpc]
[akpm@linux-foundation.org: fix arm]
[akpm@linux-foundation.org: fix mips]
[akpm@linux-foundation.org: fix drivers/media/video/pvrusb2/pvrusb2-dvb.c]
[akpm@linux-foundation.org: fix drivers/mtd/maps/uclinux.c]
[akpm@linux-foundation.org: fix powerpc]
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:21 -07:00
Johannes Weiner
9109fb7b35 mm: drop unneeded pgdat argument from free_area_init_node()
free_area_init_node() gets passed in the node id as well as the node
descriptor.  This is redundant as the function can trivially get the node
descriptor itself by means of NODE_DATA() and the node's id.

I checked all the users and NODE_DATA() seems to be usable everywhere
from where this function is called.

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:16 -07:00
Johannes Weiner
b61bfa3c46 mm: move bootmem descriptors definition to a single place
There are a lot of places that define either a single bootmem descriptor or an
array of them.  Use only one central array with MAX_NUMNODES items instead.

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:14 -07:00
Julia Lawall
93026e217b arch/m68k/mm/sun3mmu.c: Eliminate NULL test and memset after alloc_bootmem
As noted by Akinobu Mita in patch b1fceac2b9,
alloc_bootmem and related functions never return NULL and always return a
zeroed region of memory.  Thus a NULL test or memset after calls to these
functions is unnecessary.

This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression E;
statement S;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
.. when != E
(
- BUG_ON (E == NULL);
|
- if (E == NULL) S
)

@@
expression E,E1;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
.. when != E
- memset(E,0,E1);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:40 -07:00
Julia Lawall
7b6b948fc0 arch/m68k/mm/motorola.c: Eliminate NULL test and memset after alloc_bootmem
As noted by Akinobu Mita in patch b1fceac2b9,
alloc_bootmem and related functions never return NULL and always return a
zeroed region of memory.  Thus a NULL test or memset after calls to these
functions is unnecessary.

This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression E;
statement S;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
.. when != E
(
- BUG_ON (E == NULL);
|
- if (E == NULL) S
)

@@
expression E,E1;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
.. when != E
- memset(E,0,E1);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:40 -07:00
Adrian Bunk
7ccaee5cad m68k/Atari: remove the dead ATARI_SCC{,_DMA} options
It seems the driver was removed back in kernel 2.3 but the options were
forgotten.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:40 -07:00
Adrian Bunk
62bc654e79 m68k/Mac: remove the unused ADB_KEYBOARD option
When the driver was removed back in 2002 the option was forgotten.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:40 -07:00
Geert Uytterhoeven
635c0a2174 m68k/apollo: Add missing call to apollo_parse_bootinfo()
Add the missing call to apollo_parse_bootinfo(), which had been lost from a
big Apollo support patch by Peter De Schrijver in 1999.

Thanks to Adrian Bunk for noticing!

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:40 -07:00
Adrian Bunk
07b8125949 m68k/sun3/: possible cleanups
This patch contains the following possible cleanups:
- make the following needlessly global code static:
  - config.c: sun3_bootmem_alloc()
  - config.c: sun3_sched_init()
  - dvma.c: dvma_page()
  - idprom.c: struct Sun_Machines[]
  - mmu_emu.c: struct ctx_alloc[]
  - sun3dvma.c: iommu_use[]
  - sun3ints.c: led_pattern[]
- remove the unused sbus.c

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:39 -07:00
Adrian Bunk
22deb527ce m68k/q40/config.c: make functions static
This patch makes the following needlessly global functions static:
- q40_reset()
- q40_halt()
- q40_disable_irqs()
- q40_gettimeoffset()
- q40_hwclk()
- q40_get_ss()
- q40_set_clock_mmss()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:39 -07:00
Adrian Bunk
8dfbdf4aba m68k/mac/: possible cleanups
This patch contains the following possible cleanups:
- make the following needlessly global code (always) static:
  - baboon.c: struct baboon
  - baboon.c: baboon_irq()
  - config.c: mac_orig_videoaddr
  - config.c: mac_identify()
  - config.c: mac_report_hardware()
  - config.c: mac_debug_console_write()
  - config.c: mac_sccb_console_write()
  - config.c: mac_scca_console_write()
  - config.c: mac_init_scc_port()
  - oss.c: oss_irq()
  - oss.c: oss_nubus_irq()
  - psc.c: psc_debug_dump()
  - psc.c: psc_dma_die_die_die()
  - via.c: rbv_clear
- remove the unused bootparse.c
- #if 0 the following unused functions:
  - config.c: mac_debugging_short()
  - config.c: mac_debugging_long()
- remove the following unused code:
  - config.c: mac_bisize
  - config.c: mac_env
  - config.c: mac_SCC_init_done
  - config.c: mac_SCC_reset_done
  - config.c: mac_init_scca_port()
  - config.c: mac_init_sccb_port()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:39 -07:00
Adrian Bunk
5575d0a3c9 m68k/atari/debug.c: possible cleanups
This patch contains the following possible cleanups:
- make the following needlessly global functions (always) static:
  - atari_mfp_console_write()
  - atari_scc_console_write()
  - atari_midi_console_write()
  - atari_init_mfp_port()
  - atari_init_scc_port()
  - atari_init_midi_port()
- #if 0 the following unused functions:
  - atari_mfp_console_wait_key()
  - atari_scc_console_wait_key()
  - atari_midi_console_wait_key()
- remove the following unused variables:
  - atari_MFP_init_done
  - atari_SCC_init_done

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:39 -07:00
Adrian Bunk
0795dbcc4c m68k/amiga/: possible cleanups
This patch contains the following possible cleanups:
- amiints.c: add a proper prototype for amiga_init_IRQ() in
             include/asm-m68k/amigaints.h
- make the following needlessly global code static:
  - config.c: amiga_model
  - config.c: amiga_psfreq
  - config.c: amiga_serial_console_write()
- #if 0 the following unused functions:
  - config.c: amiga_serial_puts()
  - config.c: amiga_serial_console_wait_key()
  - config.c: amiga_serial_gets()
- remove the following unused variable:
  - config.c: amiga_masterclock

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:39 -07:00
Adrian Bunk
8468afc039 export amiga_vblank
This patch fixes the following build error:

<--  snip  -->

..
  Building modules, stage 2.
  MODPOST 1203 modules
ERROR: "amiga_vblank" [drivers/video/amifb.ko] undefined!
..
make[2]: *** [__modpost] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:39 -07:00
Adrian Bunk
d33b4432e6 m68k: remove AP1000 code
Unless I miss something that's code for a sparc machine even the sparc
code no longer supports that got copied to m68k when these files were
copied.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:38 -07:00
Adrian Bunk
b739912efc m68k: make multi_defconfig the default defconfig
It seems to match the intention behind multi_defconfig to make it the
default defconfig.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:24:38 -07:00