firefly-linux-kernel-4.4.55.git
16 years ago[POWERPC] Implement 'make bootwrapper_install'
David Woodhouse [Mon, 3 Dec 2007 02:56:58 +0000 (13:56 +1100)]
[POWERPC] Implement 'make bootwrapper_install'

This adds a 'bootwrapper_install' make target for the powerpc
architecture, which installs the wrapper script, intermediate object
files and device-tree sources for later use.

This will then allow bootable zImages to be created other than in the
context of a kernel build.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Allow for bootwrapper utilities being in different directory to objects
David Woodhouse [Mon, 3 Dec 2007 02:52:05 +0000 (13:52 +1100)]
[POWERPC] Allow for bootwrapper utilities being in different directory to objects

It's possible that the executables which are built as helpers for the
bootwrapper stuff might end up in a different place to the intermediate
object files. Handle that.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Find device-tree source file in default directory
David Woodhouse [Mon, 3 Dec 2007 02:49:24 +0000 (13:49 +1100)]
[POWERPC] Find device-tree source file in default directory

If a .dts file is given to the bootwrapper script without a full path
name, look in a sensible place for it.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Create otheros.bld next to specified output file, not in $object directory
David Woodhouse [Mon, 3 Dec 2007 02:48:03 +0000 (13:48 +1100)]
[POWERPC] Create otheros.bld next to specified output file, not in $object directory

The bootwrapper script currently generates an 'otheros.bld' file in
addition to the file specified by the -o option, when asked to build a
wrapper for PS3.

It should do that in the same directory as the output, not the directory
where the wrapper objects are kept (which might potentially not be
writable when the script runs).

Arguably, the 'otheros.bld' ought to be created with the filename
specified as the -o argument. But that's a more intrusive change.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] CELLEB: Fix possible NULL pointer dereference
Cyrill Gorcunov [Thu, 29 Nov 2007 07:44:18 +0000 (18:44 +1100)]
[POWERPC] CELLEB: Fix possible NULL pointer dereference

This adds checking for NULL returned value from of_get_property to
prevent possible NULL pointer dereference in the case when expected
properties are not present.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Clean out asm/of_{platform, device}.h from sysdev/
Jon Loeliger [Tue, 13 Nov 2007 17:13:09 +0000 (04:13 +1100)]
[POWERPC] Clean out asm/of_{platform, device}.h from sysdev/

Convert #include of asm/of_{platform, device}.h into
linux/of_{platform,device}.h for remaining arch/powerpc files.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Clean out asm/of_{platform, device}.h
Jon Loeliger [Tue, 13 Nov 2007 17:13:03 +0000 (04:13 +1100)]
[POWERPC] Clean out asm/of_{platform, device}.h

Convert #include of asm/of_{platform, device}.h into
linux/of_{platform,device}.h for a few scattered platforms.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agoMerge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/pasem...
Paul Mackerras [Wed, 5 Dec 2007 05:13:25 +0000 (16:13 +1100)]
Merge branch 'for-2.6.25' of git://git./linux/kernel/git/olof/pasemi into for-2.6.25

16 years ago[POWERPC] pasemi: Fix module information for gpio-mdio
Olof Johansson [Mon, 3 Dec 2007 04:35:25 +0000 (22:35 -0600)]
[POWERPC] pasemi: Fix module information for gpio-mdio

Fix up the module information for gpio-mdio, it wouldn't load
because of lacking license, and wouldn't auto-load because of missing
MODULE_DEVICE_TABLE.

Signed-off-by: Olof Johansson <olof@lixom.net>
16 years ago[POWERPC] Add missing spaces in printk formats in arch/ppc
joe@perches.com [Tue, 20 Nov 2007 01:47:56 +0000 (12:47 +1100)]
[POWERPC] Add missing spaces in printk formats in arch/ppc

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Add missing spaces in printk formats
joe@perches.com [Tue, 20 Nov 2007 01:47:55 +0000 (12:47 +1100)]
[POWERPC] Add missing spaces in printk formats

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Remove redundant declaration of hose_list
Stephen Rothwell [Mon, 19 Nov 2007 06:17:07 +0000 (17:17 +1100)]
[POWERPC] Remove redundant declaration of hose_list

It is already declared in ppc-pci.h which is included.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] iSeries: Fix sparse warnings in setup.c
Stephen Rothwell [Mon, 19 Nov 2007 06:10:57 +0000 (17:10 +1100)]
[POWERPC] iSeries: Fix sparse warnings in setup.c

arch/powerpc/platforms/iseries/setup.c:111:27: warning: constant 0x100000000 is so big it is long
arch/powerpc/platforms/iseries/setup.c:113:23: warning: constant 0x100000000 is so big it is long
arch/powerpc/platforms/iseries/setup.c:117:27: warning: constant 0x000fffffffffffff is so big it is long
arch/powerpc/platforms/iseries/setup.c:127:28: warning: constant 0x100000000 is so big it is long
arch/powerpc/platforms/iseries/setup.c:129:24: warning: constant 0x100000000 is so big it is long
arch/powerpc/platforms/iseries/setup.c:233:5: warning: constant 0x000fffffffffffff is so big it is long
arch/powerpc/platforms/iseries/setup.c:235:5: warning: constant 0x000fffffffffffff is so big it is long
arch/powerpc/platforms/iseries/setup.c:319:6: warning: symbol 'mschunks_alloc' was not declared. Should it be static?
arch/powerpc/platforms/iseries/setup.c:661:6: warning: symbol 'iSeries_early_setup' was not declared. Should it be static?

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] iSeries: Declare iSeries_pci_final_fixup in pci.h
Stephen Rothwell [Mon, 19 Nov 2007 06:06:56 +0000 (17:06 +1100)]
[POWERPC] iSeries: Declare iSeries_pci_final_fixup in pci.h

Fixes sparse warning:
arch/powerpc/platforms/iseries/pci.c:169:13: warning: symbol 'iSeries_pci_final_fixup' was not declared. Should it be static?

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] iSeries: Mark two functions __init
Stephen Rothwell [Mon, 19 Nov 2007 06:03:59 +0000 (17:03 +1100)]
[POWERPC] iSeries: Mark two functions __init

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Make global_phb_number static
Stephen Rothwell [Mon, 19 Nov 2007 05:56:15 +0000 (16:56 +1100)]
[POWERPC] Make global_phb_number static

since it's not used outside of arch/powerpc/kernel/pci-common.c.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Add xmon function to dump 44x TLB
Benjamin Herrenschmidt [Fri, 16 Nov 2007 07:23:33 +0000 (18:23 +1100)]
[POWERPC] Add xmon function to dump 44x TLB

This adds a function to xmon to dump the content of the 44x processor
TLB with a little bit of decoding (but not much).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] EEH: Report errors as soon as possible
Linas Vepstas [Thu, 15 Nov 2007 18:58:36 +0000 (05:58 +1100)]
[POWERPC] EEH: Report errors as soon as possible

Do not wait for the pci slot status before reporting an error
to the device driver. Some systems may take many seconds to
report the slot status, and this can confuse unsuspecting
device drivers.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] EEH: Be careful when identifying "empty" slots.
Linas Vepstas [Thu, 15 Nov 2007 18:57:27 +0000 (05:57 +1100)]
[POWERPC] EEH: Be careful when identifying "empty" slots.

If an "empty" slot is failing, make sure its a permanent failure;
else process the error normally.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] EEH: Work with device endpoint, always
Linas Vepstas [Thu, 15 Nov 2007 18:56:23 +0000 (05:56 +1100)]
[POWERPC] EEH: Work with device endpoint, always

Perform all error checking at the "partitonable endpoint"
of the device.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] PMU: Remove dead code
Johannes Berg [Tue, 13 Nov 2007 19:08:32 +0000 (06:08 +1100)]
[POWERPC] PMU: Remove dead code

Some code in via-pmu.c is never compiled because of "compile options"
within the file.  Remove the code completely.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] PMU: Don't lock_kernel()
Johannes Berg [Tue, 13 Nov 2007 19:07:56 +0000 (06:07 +1100)]
[POWERPC] PMU: Don't lock_kernel()

I see nothing that this lock_kernel() actually protects against,
so remove it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] powermac: Fix warning in time.c
Johannes Berg [Tue, 13 Nov 2007 18:17:20 +0000 (05:17 +1100)]
[POWERPC] powermac: Fix warning in time.c

arch/powerpc/platforms/powermac/time.c:88: warning: 'to_rtc_time' defined but not used

This fixes the warning by making the relevant code depend on the
users.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Remove prod_processor()
Nathan Lynch [Mon, 12 Nov 2007 22:51:16 +0000 (09:51 +1100)]
[POWERPC] Remove prod_processor()

prod_processor() is unused, and that's a good thing, since it does not
supply the required proc id parameter to H_PROD.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Cleanup SMT thread handling
Benjamin Herrenschmidt [Thu, 25 Oct 2007 05:27:44 +0000 (15:27 +1000)]
[POWERPC] Cleanup SMT thread handling

This cleans up the SMT thread handling, removing some hard coded
assumptions and providing a set of helpers to convert between linux
cpu numbers, thread numbers and cores.

This implementation requires the number of threads per core to be a
power of 2 and identical on all cores in the system, but it's an
implementation detail, not an API requirement and so this limitation
can be lifted in the future if anybody ever needs it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] Remove xmon from ml300 and ml403 defconfig in arch/ppc
Grant Likely [Tue, 20 Nov 2007 06:08:49 +0000 (17:08 +1100)]
[POWERPC] Remove xmon from ml300 and ml403 defconfig in arch/ppc

xmon is broken under arch/ppc so remove it from the defconfig.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years agoRevert "[POWERPC] Fix RTAS os-term usage on kernel panic"
Paul Mackerras [Sun, 2 Dec 2007 22:30:04 +0000 (09:30 +1100)]
Revert "[POWERPC] Fix RTAS os-term usage on kernel panic"

This reverts commit a2b51812a4dc5db09ab4d4638d4d8ed456e2457e.

It turns out that this change caused some machines to fail to come
back up when being rebooted, and generated an error in the hypervisor
error log on some machines.  The platform architecture (PAPR) is a
little unclear on exactly when the RTAS ibm,os-term function should be
called.  Until that is clarified I'm reverting this commit.

Signed-off-by: Paul Mackerras <paulus@samba.org>
16 years ago[POWERPC] pasemi: Move cpus to hold loop before restart
Olof Johansson [Wed, 7 Nov 2007 15:31:06 +0000 (09:31 -0600)]
[POWERPC] pasemi: Move cpus to hold loop before restart

Use smp_send_stop() to move all cpus besides the one executing reboot
into a hold loop, to keep them from being in powersavings mode at the
time of reboot.

Signed-off-by: Olof Johansson <olof@lixom.net>
16 years ago[POWERPC] pasemi: Don't enter powersaving states from elevated astates
Olof Johansson [Wed, 7 Nov 2007 15:26:06 +0000 (09:26 -0600)]
[POWERPC] pasemi: Don't enter powersaving states from elevated astates

When the PWRficient cpus are entered into powersavings states, the
astate is automatically dropped down to 0. While we still restore it
when we come out of idle, it can still cause some weird effects with
respect to performance (especially since it takes a while to ramp up to
higher astates).

So, to avoid this, don't enter power savings when the cpufreq driver
(or user) has set higher astates than 0.

The restore is still required, since there's a chance the astate has
been raised from the other cpu while the idling one was asleep.

Signed-off-by: Olof Johansson <olof@lixom.net>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Sat, 1 Dec 2007 04:07:54 +0000 (20:07 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/ehca: Fix static rate if path faster than link
  IPoIB: Fix oops if xmit is called when priv->broadcast is NULL

16 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Sat, 1 Dec 2007 01:07:38 +0000 (17:07 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Fix build.
  [MIPS] Fix use of smp_processor_id() in preemptible code.

16 years ago[MIPS] Fix build.
Ralf Baechle [Wed, 28 Nov 2007 15:07:42 +0000 (15:07 +0000)]
[MIPS] Fix build.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years ago[MIPS] Fix use of smp_processor_id() in preemptible code.
Pavel Kiryukhin [Tue, 27 Nov 2007 16:20:47 +0000 (19:20 +0300)]
[MIPS] Fix use of smp_processor_id() in preemptible code.

Freeing prom memory: 956kb freed
Freeing firmware memory: 978944k freed
Freeing unused kernel memory: 180k freed
BUG: using smp_processor_id() in preemptible [00000000] code: swapper/1
caller is r4k_dma_cache_wback_inv+0x144/0x2a0
Call Trace:
 [<80117af8>] r4k_dma_cache_wback_inv+0x144/0x2a0
 [<802e4b84>] debug_smp_processor_id+0xd4/0xf0
 [<802e4b7c>] debug_smp_processor_id+0xcc/0xf0
...
CONFIG_DEBUG_PREEMPT is enabled.
--
Bug cause is blast_dcache_range() in preemptible code [in
r4k_dma_cache_wback_inv()].
blast_dcache_range() is constructed via __BUILD_BLAST_CACHE_RANGE that
uses cpu_dcache_line_size(). It uses current_cpu_data that use
smp_processor_id() in turn. In case of CONFIG_DEBUG_PREEMPT
smp_processor_id emits BUG if we are executing with preemption
enabled.

Cpu options of cpu0 are assumed to be the superset of all processors.

Can I make the same assumptions for cache line size  and fix this
issue the following way:

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
16 years agoIB/ehca: Fix static rate if path faster than link
Joachim Fenkes [Sat, 1 Dec 2007 00:19:41 +0000 (16:19 -0800)]
IB/ehca: Fix static rate if path faster than link

The formula would yield -1 if the path is faster than the link, which
is wrong in a bad way (max throttling).  Clamp to 0, which is the
correct value.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoMerge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Fri, 30 Nov 2007 16:11:18 +0000 (08:11 -0800)]
Merge branch 'for-linus' of /home/rmk/linux-2.6-arm

* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 4680/1: parentheses around NR_IRQS definition
  [ARM] 4679/1: AT91: Change maintainer email address
  [ARM] 4675/1: pxa: fix mfp address definition error for pxa320
  [ARM] 4674/1: pxa: increase LCD PCLK drive strength to fast 2mA for PXA300/PXA310
  [ARM] 4673/1: pxa: add missing IRQ_SSP4 definitions for PXA3xx
  [ARM] 4672/1: pxa: fix DRCMR(n) to support PXA27x and later processors
  [ARM] 4665/1: fix __und_usr wrt accessing the undefined insn in user space
  [ARM] 4659/1: remove possibilities for spurious false negative with __kuser_cmpxchg
  [ARM] 4661/1: fix do_undefinstr wrt the enabling of IRQs
  [ARM] uengine: fix memset size error
  [ARM] 4648/1: i.MX/MX1 ensure more complete AITC initialization
  [ARM] 4611/2: AT91: Fix GPIO buttons pins on SAM9261-EK.
  [ARM] 4650/1: AT91: New-style init of I2C, support for i2c-gpio
  [ARM] 4604/2: AT91: Master clock divistor on SAM9
  [ARM] 4662/1: Fix PXA serial driver compilation if SERIAL_PXA_CONSOLE is disabled
  [ARM] PXA ssp: unlock when ssp tries to close an invalid port
  [ARM] 4654/1: pxa: update default MFP register value
  [ARM] 4653/1: pxa: fix a gpio typo in mfp-pxa320.h
  [ARM] 4652/1: pxa: fix a typo of pxa27x usb host clk definition
  [ARM] 4651/1: pxa: add PXA3xx specific IRQ definitions

16 years agoFix kmem_cache_free performance regression in slab
Matthew Wilcox [Thu, 29 Nov 2007 19:05:13 +0000 (12:05 -0700)]
Fix kmem_cache_free performance regression in slab

The database performance group have found that half the cycles spent
in kmem_cache_free are spent in this one call to BUG_ON.  Moving it
into the CONFIG_SLAB_DEBUG-only function cache_free_debugcheck() is a
performance win of almost 0.5% on their particular benchmark.

The call was added as part of commit ddc2e812d592457747c4367fb73edcaa8e1e49ff
with the comment that "overhead should be minimal".  It may have been
minimal at the time, but it isn't now.

[ Quoth Pekka Enberg: "I don't think the BUG_ON per se caused the
  performance regression but rather the virt_to_head_page() changes to
  virt_to_cache() that were added later." ]

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: Pekka J Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years ago[POWERPC] pasemi: Broaden specific references to 1682M
Olof Johansson [Mon, 5 Nov 2007 02:57:45 +0000 (20:57 -0600)]
[POWERPC] pasemi: Broaden specific references to 1682M

There will be more product numbers in the future than just PA6T-1682M,
but they will share much of the features. Remove some of the explicit
references and compatibility checks with 1682M, and replace most of them
with the more generic term "PWRficient".

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Michael Buesch <mb@bu3sch.de>
Acked-by: Doug Thompson <dougthompson@xmission.com>
16 years ago[POWERPC] pasemi: clean up mdio_gpio a bit
Olof Johansson [Sun, 4 Nov 2007 21:44:15 +0000 (15:44 -0600)]
[POWERPC] pasemi: clean up mdio_gpio a bit

Misc cleanups of mdio_gpio:
* Better error handling/unrolling in case of init/alloc failures
* Go through child nodes and get their interrupts instead of using
  hardcoded values
* Remap the GPIO registers at module load/driver init instead of during probe
* Coding style and other misc cleanups

Signed-off-by: Olof Johansson <olof@lixom.net>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux...
Linus Torvalds [Fri, 30 Nov 2007 00:25:29 +0000 (16:25 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/hpa/linux-2.6-x86setup

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup:
  x86 setup: don't recalculate ss:esp unless really necessary

16 years agoMerge branches 'at91-fixes' and 'pxa-fixes'
Russell King [Thu, 29 Nov 2007 20:57:19 +0000 (20:57 +0000)]
Merge branches 'at91-fixes' and 'pxa-fixes'

16 years ago[ARM] 4680/1: parentheses around NR_IRQS definition
Roel Kluin [Thu, 29 Nov 2007 13:25:21 +0000 (14:25 +0100)]
[ARM] 4680/1: parentheses around NR_IRQS definition

If NR_IRQS is defined as a sum without surrounding parentheses, this may
lead to problems when used in multiplications. This may lead to problems
in:
arch/ia64/sn/kernel/irq.c:516
arch/x86/kernel/io_apic_32.c:693, 694, 699, 700
fs/proc/proc_misc.c:464

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] 4679/1: AT91: Change maintainer email address
Andrew Victor [Thu, 29 Nov 2007 07:11:54 +0000 (08:11 +0100)]
[ARM] 4679/1: AT91: Change maintainer email address

Change email address of AT91 maintainer.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] 4675/1: pxa: fix mfp address definition error for pxa320
eric miao [Tue, 27 Nov 2007 02:14:09 +0000 (03:14 +0100)]
[ARM] 4675/1: pxa: fix mfp address definition error for pxa320

Signed-off-by: bridge wu <bridge.wu@marvell.com>
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] 4674/1: pxa: increase LCD PCLK drive strength to fast 2mA for PXA300/PXA310
eric miao [Tue, 27 Nov 2007 02:13:31 +0000 (03:13 +0100)]
[ARM] 4674/1: pxa: increase LCD PCLK drive strength to fast 2mA for PXA300/PXA310

Some platforms (e.g. Littleton) requires LCD PCLK drive strength to be
higher than default to cope with the fast PCLK frequency.

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] 4673/1: pxa: add missing IRQ_SSP4 definitions for PXA3xx
eric miao [Tue, 27 Nov 2007 02:12:52 +0000 (03:12 +0100)]
[ARM] 4673/1: pxa: add missing IRQ_SSP4 definitions for PXA3xx

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years ago[ARM] 4672/1: pxa: fix DRCMR(n) to support PXA27x and later processors
eric miao [Tue, 27 Nov 2007 02:12:19 +0000 (03:12 +0100)]
[ARM] 4672/1: pxa: fix DRCMR(n) to support PXA27x and later processors

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
Linus Torvalds [Thu, 29 Nov 2007 18:32:19 +0000 (10:32 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  sdio_uart: fix sign of paramter status in sdio_uart_receive_chars()

16 years agosdio_uart: fix sign of paramter status in sdio_uart_receive_chars()
Andre Haupt [Wed, 21 Nov 2007 11:33:45 +0000 (12:33 +0100)]
sdio_uart: fix sign of paramter status in sdio_uart_receive_chars()

This also fixes a sparse warning about different signedness.
Only compile tested, because i do not have the hardware.

Signed-off-by: Andre Haupt <andre@bitwigglers.org>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
16 years agox86/paravirt: revert exports to restore old behaviour
Jeremy Fitzhardinge [Thu, 29 Nov 2007 00:22:11 +0000 (16:22 -0800)]
x86/paravirt: revert exports to restore old behaviour

Subdividing the paravirt_ops structure caused a regression in certain
non-GPL modules which try to use mmu_ops and cpu_ops.  This restores the
old behaviour, and makes it consistent with the non-CONFIG_PARAVIRT case.

Takashi Iwai <tiwai@suse.de> adds:
> I took at this problem (as I have an nvidia card on one of my
> workstations), and found out that the following suffer from
> EXPORT_SYMBOL_GPL changes:
>
> * local_disable_irq(), local_irq_save*(), etc.
> * MSR-related macros like rdmsr(), wrmsr(), read_cr0(), etc.
>   wbinvd(), too.
> * pmd_val(), pgd_val(), etc are all involved with pv_mm_ops.
>   pmd_large() and pmd_bad() is also indirectly involved.
>   __flush_tlb() and friends suffer, too.

Christoph Hellwig objects to this patch on the grounds that modules
shouldn't be using these operations anyway.  I don't think this is a
particularly good reason to reject the patch, for several reasons:

1. These operations are still available to modules when not using
   CONFIG_PARAVIRT, since they are implicitly exported as inline
   functions via the kernel headers.  Exporting the same functionality as
   GPL-only symbols just adds a gratuitious difference between
   CONFIG_PARAVIRT and non-CONFIG_PARAVIRT configurations.  If we really
   think these operations are not for module use (or non-GPL module use),
   then we should solve the problem in a general way.

2. It's a regression from previous kernels, which would work these
   modules even with CONFIG_PARAVIRT enabled.

3. The operations in question seem pretty reasonable for modules to
   use.  The control registers/MSRs can be accessed directly anyway, so there's
   no benefit in preventing modules from using standard interfaces.  And it seems
   reasonable to allow a graphics driver to create its own mappings if it wants.

Therefore, I think this patch should go in for 2.6.24.  If people
really think that these operations should not be available to modules,
then we can address that separately.

Signed-off-by: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
Cc: Tobias Powalowski <t.powa@gmx.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agolguest: prevent VISWS or VOYAGER randconfigs
Randy Dunlap [Thu, 29 Nov 2007 00:22:09 +0000 (16:22 -0800)]
lguest: prevent VISWS or VOYAGER randconfigs

Keep lguest from being enabled on VISWS or VOYAGER configs, just as is
already done for VMI and XEN.  Otherwise randconfigs with VISWS and LGUEST
have this problem:

In file included from arch/x86/kernel/setup_32.c:61:
include/asm-x86/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefined
In file included from include/asm/msr.h:80,
                 from include/asm/processor_32.h:17,
                 from include/asm/processor.h:2,
                 from include/asm/thread_info_32.h:16,
                 from include/asm/thread_info.h:2,
                 from include/linux/thread_info.h:21,
                 from include/linux/preempt.h:9,
                 from include/linux/spinlock.h:49,
                 from include/linux/seqlock.h:29,
                 from include/linux/time.h:8,
                 from include/linux/timex.h:57,
                 from include/linux/sched.h:53,
                 from arch/x86/kernel/setup_32.c:24:
include/asm/paravirt.h:458:1: warning: this is the location of the previous definition

(and of course, this happens because kconfig does not follow dependencies
when [evil] select is used...)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoACPI: avoid references to impossible processors.
Christoph Lameter [Thu, 29 Nov 2007 00:22:08 +0000 (16:22 -0800)]
ACPI: avoid references to impossible processors.

ACPI uses NR_CPUS in various loops and in some it accesses per cpu data of
processors that are not present(!) and that will never be present.

The pointers to per cpu data are typically not initialized for processors
that are not present.  So we seem to be reading something here from offset
0 in memory.

Make ACPI use nr_cpu_ids instead. That stops at the end of the possible
processors.

Convert one loop to NR_CPUS to use the cpu_possible map instead.  That way
ranges of processor that can never be brought online are skipped during the
loop.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agotty: add the new termios2 ioctls to the compatible list.
Heiko Carstens [Thu, 29 Nov 2007 00:22:07 +0000 (16:22 -0800)]
tty: add the new termios2 ioctls to the compatible list.

Make them depend on TCGETS2.  If that one is implemented the rest should be
there as well.

Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agowait_task_stopped(): pass correct exit_code to wait_noreap_copyout()
Scott James Remnant [Thu, 29 Nov 2007 00:22:07 +0000 (16:22 -0800)]
wait_task_stopped(): pass correct exit_code to wait_noreap_copyout()

In wait_task_stopped() exit_code already contains the right value for the
si_status member of siginfo, and this is simply set in the non WNOWAIT
case.

If you call waitid() with a stopped or traced process, you'll get the signal
in siginfo.si_status as expected -- however if you call waitid(WNOWAIT) at the
same time, you'll get the signal << 8 | 0x7f

Pass it unchanged to wait_noreap_copyout(); we would only need to shift it
and add 0x7f if we were returning it in the user status field and that
isn't used for any function that permits WNOWAIT.

Signed-off-by: Scott James Remnant <scott@ubuntu.com>
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoadd Mike Christie to MAINTAINERS
Mike Christie [Thu, 29 Nov 2007 00:22:06 +0000 (16:22 -0800)]
add Mike Christie to MAINTAINERS

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFRV: arrange things such that BRA can reach from the trap table
David Howells [Thu, 29 Nov 2007 00:22:05 +0000 (16:22 -0800)]
FRV: arrange things such that BRA can reach from the trap table

Arrange the sections in the FRV arch so that a BRA instruction with a
16-bit displacement can always reach from the trap table to entry.S,
tlb-miss.S and break.S.

The problem otherwise is that the linker can insert sufficient code between
the slots in the trap table and the targets of the branch instructions in
those slots that the displacement field in the instruction isn't
sufficiently large.  This is because the branch targets were in the .text
section along with most of the other code in the kernel.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFRV: fix the extern declaration of kallsyms_num_syms
David Howells [Thu, 29 Nov 2007 00:22:04 +0000 (16:22 -0800)]
FRV: fix the extern declaration of kallsyms_num_syms

Fix the extern declaration of kallsyms_num_syms to indicate that the symbol
does not reside in the small-data storage space, and so may not be accessed
relative to the small data base register.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoRTC: convert mutex to bitfield
Jiri Kosina [Thu, 29 Nov 2007 00:22:03 +0000 (16:22 -0800)]
RTC: convert mutex to bitfield

RTC code is using mutex to assure exclusive access to /dev/rtc.  This is
however wrong usage, as it leaves the mutex locked when returning into
userspace, which is unacceptable.

Convert rtc->char_lock into bit operation.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofuse: fix attribute caching after rename
Miklos Szeredi [Thu, 29 Nov 2007 00:22:03 +0000 (16:22 -0800)]
fuse: fix attribute caching after rename

Invalidate attributes on rename, since some filesystems may update
st_ctime.  Reported by Szabolcs Szakacsits

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofuse: fix uninitialized field in fuse_inode
John Muir [Thu, 29 Nov 2007 00:22:02 +0000 (16:22 -0800)]
fuse: fix uninitialized field in fuse_inode

I found problems accessing (executing) previously existing files, until
I did chmod on them (or setattr).

If the fi->attr_version is not initialized, then it could be
larger than fc->attr_version until a setattr is executed, and as a
result the inode attributes would never be set.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofuse: fix FUSE_FILE_OPS sending
Miklos Szeredi [Thu, 29 Nov 2007 00:22:01 +0000 (16:22 -0800)]
fuse: fix FUSE_FILE_OPS sending

FUSE_FILE_OPS is meant to signal that the kernel will send the open file to to
the userspace filesystem for operations on open files, so that sillyrenaming
unlinked files becomes unnecessary.

However this needs VFS changes, which won't make it into 2.6.24.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofuse: pass open flags to read and write
Miklos Szeredi [Thu, 29 Nov 2007 00:22:00 +0000 (16:22 -0800)]
fuse: pass open flags to read and write

Some open flags (O_APPEND, O_DIRECT) can be changed with fcntl(F_SETFL, ...)
after open, but fuse currently only sends the flags to userspace in open.

To make it possible to correcly handle changing flags, send the
current value to userspace in each read and write.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofuse: cleanup: add fuse_get_attr_version()
Miklos Szeredi [Thu, 29 Nov 2007 00:21:59 +0000 (16:21 -0800)]
fuse: cleanup: add fuse_get_attr_version()

Extract repeated code into helper function, as suggested by Akpm.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofuse: fix reading past EOF
Miklos Szeredi [Thu, 29 Nov 2007 00:21:59 +0000 (16:21 -0800)]
fuse: fix reading past EOF

Currently reading a fuse file will stop at cached i_size and return
EOF, even though the file might have grown since the attributes were
last updated.

So detect if trying to read past EOF, and refresh the attributes
before continuing with the read.

Thanks to mpb for the report.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomemory hotplug x86_64: fix section mismatch in init_memory_mapping()
KAMEZAWA Hiroyuki [Thu, 29 Nov 2007 00:21:58 +0000 (16:21 -0800)]
memory hotplug x86_64: fix section mismatch in init_memory_mapping()

Changes __meminit to __init_refok.

WARNING: vmlinux.o(.text+0x1d07c): Section mismatch: reference to
.init.text:find_e820_area (between 'init_memory_mapping' and 'arch_add_memory')

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomemory hotplug fix: fix section mismatch in vmammap_allock_block()
KAMEZAWA Hiroyuki [Thu, 29 Nov 2007 00:21:57 +0000 (16:21 -0800)]
memory hotplug fix: fix section mismatch in vmammap_allock_block()

Fixes section mismatch below.

WARNING: vmlinux.o(.text+0x946b5): Section mismatch: reference to .init.text:'
__alloc_bootmem_node (between 'vmemmap_alloc_block' and 'vmemmap_pgd_populate')

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agox86_64 EFI boot support: EFI boot document
Huang, Ying [Thu, 29 Nov 2007 00:21:56 +0000 (16:21 -0800)]
x86_64 EFI boot support: EFI boot document

This patch adds document for EFI x86_64 boot support.  The setup and operation
guide of EFI based system is documented in Documentation/x86_64/uefi.txt.

Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agox86_64 EFI boot support: EFI frame buffer driver
Huang, Ying [Thu, 29 Nov 2007 00:21:55 +0000 (16:21 -0800)]
x86_64 EFI boot support: EFI frame buffer driver

This patch adds Graphics Output Protocol support to the kernel.  UEFI2.0 spec
deprecates Universal Graphics Adapter (UGA) protocol and only Graphics Output
Protocol (GOP) is produced.  Therefore, the boot loader needs to query the
UEFI firmware with appropriate Output Protocol and pass the video information
to the kernel.  As a result of GOP protocol, an EFI framebuffer driver is
needed for displaying console messages.  The patch adds a EFI framebuffer
driver.  The EFI frame buffer driver in this patch is based on the Intel Mac
framebuffer driver.

The ELILO bootloader takes care of passing the video information as
appropriate for EFI firmware.

The framebuffer driver has been tested in i386 kernel and x86_64 kernel on EFI
platform.

Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agorevert "keyspan: init termios properly"
Andrew Morton [Thu, 29 Nov 2007 00:21:54 +0000 (16:21 -0800)]
revert "keyspan: init termios properly"

Revert 7eea436433b7b18045f272562e256976f593f7c0.

Lucy said:

  This patch will work with the 19HS but WILL BREAK all other Keyspan
  adapters.  It will take me a few days to get to looking at a correct fix but
  that keyspan_send_setup(port, 1) (and the '1' is the important part) must
  happen once when the port is first opened.  The cflag can just be set to
  whatever the normal default is for your serial environment.

So revert this again pending the proper fix.

Cc: Borislav Petkov <bbpetkov@yahoo.de>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Lucy McCoy <lucy@keyspan.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoimacfb: remove reference to otherwise-unused, non-existent screen_info.imacpm_seg
Andrew Morton [Thu, 29 Nov 2007 00:21:52 +0000 (16:21 -0800)]
imacfb: remove reference to otherwise-unused, non-existent screen_info.imacpm_seg

Cc: Edgar Hucek <hostmaster@ed-soft.at>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoleak in do_ubd_request
Miklos Szeredi [Thu, 29 Nov 2007 00:21:52 +0000 (16:21 -0800)]
leak in do_ubd_request

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agouml: fix !NO_HZ busy-loop
Jeff Dike [Thu, 29 Nov 2007 00:21:51 +0000 (16:21 -0800)]
uml: fix !NO_HZ busy-loop

With NO_HZ disabled, the UML idle loop effectively becomes a busy loop, as
it will sleep for no time.

The cause was forgetting to restart the tick after waking up from sleep.
It was disabled before sleeping, and the remaining time used as the
interval to sleep.  So, the tick needs to be restarted when nanosleep
finishes.

This is done by introducing after_sleep_interval, which is empty in the
NO_HZ case, but which sets the tick starting in the !NO_HZ case.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoisdn: bootup crash fix
Ingo Molnar [Thu, 29 Nov 2007 00:21:50 +0000 (16:21 -0800)]
isdn: bootup crash fix

got this HiSax bootup crash on a "make randconfig" bzImage bootup:

 Calling initcall 0xc0bb1320: HiSax_init+0x0/0x380()
 HiSax: Linux Driver for passive ISDN cards
 HiSax: Version 3.5 (kernel)
 HiSax: Layer1 Revision 2.46.2.5
 HiSax: Layer2 Revision 2.30.2.4
 HiSax: TeiMgr Revision 2.20.2.3
 HiSax: Layer3 Revision 2.22.2.3
 HiSax: LinkLayer Revision 2.59.2.4
 HiSax: Total 1 card defined
 HiSax: Card 1 Protocol EDSS1 Id=HiSax (0)
 HiSax: HFC-S driver Rev. 1.10.2.4
 HFCS: defined at 0x500 IRQ 5 HZ 250
 Teles 16.3c: IRQ 5 count 0
 HFCS: resetting card
 Teles 16.3c: IRQ 5 count 0
 Teles 16.3c: IRQ(5) getting no interrupts during init 1
 HFCS: resetting card
 ------------[ cut here ]------------
 kernel BUG at include/linux/timer.h:145!
 invalid opcode: 0000 [#1] PREEMPT DEBUG_PAGEALLOC
 Modules linked in:

 Pid: 1, comm: swapper Not tainted (2.6.24-rc3 #2045)
 EIP: 0060:[<c063afbf>] EFLAGS: 00010286 CPU: 0
 EIP is at hfcs_card_msg+0x15f/0x180
 EAX: c0cf2e5c EBX: 000000f2 ECX: 00000000 EDX: ffff1193
 ESI: f76e8000 EDI: f76e8000 EBP: f7c23ec4 ESP: f7c23eac
  DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
 Process swapper (pid: 1, ti=f7c22000 task=f7c0e000 task.ti=f7c22000)
 Stack: 00000000 f7c23ec4 c011703b 00000002 f76e8000 00000000 f7c23ef8 c060c3e5
        c0a7c9c0 c0a315dc 00000005 00000001 00000000 f7c23f34 00000000 c0b5c9c0
        f7c23f34 00000000 c0f5a8e0 f7c23f80 c0bb154f 00000000 00000001 c0a9b5b9
 Call Trace:
  [<c010339a>] show_trace_log_lvl+0x1a/0x40
  [<c0103469>] show_stack_log_lvl+0xa9/0xe0
  [<c010355f>] show_registers+0xbf/0x200
  [<c01037a4>] die+0x104/0x220
  [<c0103943>] do_trap+0x83/0xc0
  [<c0103ca8>] do_invalid_op+0x88/0xa0
  [<c083621a>] error_code+0x6a/0x70
  [<c060c3e5>] checkcard+0x4a5/0x620
  [<c0bb154f>] HiSax_init+0x22f/0x380
  [<c0b867b7>] kernel_init+0x97/0x2a0
  [<c0102f87>] kernel_thread_helper+0x7/0x20
  =======================
 Code: e8 43 ae ff 8b 57 3c 85 d2 0f 84 ef fe ff ff b8 a0 99 ad c0 b9 02 00 00 00 e8 ce 11 ae ff 83 c4 0c b8 00 00 00 00 5b 5e 5f c9 c3 <0f> 0b eb fe 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
 EIP: [<c063afbf>] hfcs_card_msg+0x15f/0x180 SS:ESP 0068:f7c23eac
 Kernel panic - not syncing: Attempted to kill init!

The box has no HiSax card installed.

the reason for the crash is add_timer() done on an already running
timer. This happens because for some reason CARD_INIT is called twice.

this patch works this problem around by using mod_timer() - this gets
a booting system - but it would be nice to figure out why CARD_INIT
is done twice.

the ISDN config section (generated via make randconfig) is this:

#
# ISDN feature submodules
#
# CONFIG_ISDN_DRV_LOOP is not set
CONFIG_ISDN_DIVERSION=y

#
# ISDN4Linux hardware drivers
#

#
# Passive cards
#
CONFIG_ISDN_DRV_HISAX=y

#
# D-channel protocol features
#
CONFIG_HISAX_EURO=y
CONFIG_DE_AOC=y
# CONFIG_HISAX_NO_SENDCOMPLETE is not set
# CONFIG_HISAX_NO_LLC is not set
# CONFIG_HISAX_NO_KEYPAD is not set
CONFIG_HISAX_1TR6=y
CONFIG_HISAX_NI1=y
CONFIG_HISAX_MAX_CARDS=8

#
# HiSax supported cards
#
CONFIG_HISAX_16_0=y
# CONFIG_HISAX_16_3 is not set
# CONFIG_HISAX_TELESPCI is not set
CONFIG_HISAX_S0BOX=y
# CONFIG_HISAX_AVM_A1 is not set
CONFIG_HISAX_FRITZPCI=y
CONFIG_HISAX_AVM_A1_PCMCIA=y
CONFIG_HISAX_ELSA=y
CONFIG_HISAX_IX1MICROR2=y
CONFIG_HISAX_DIEHLDIVA=y
# CONFIG_HISAX_ASUSCOM is not set
# CONFIG_HISAX_TELEINT is not set
CONFIG_HISAX_HFCS=y
# CONFIG_HISAX_SEDLBAUER is not set
CONFIG_HISAX_SPORTSTER=y
# CONFIG_HISAX_MIC is not set
# CONFIG_HISAX_NETJET is not set
# CONFIG_HISAX_NETJET_U is not set
# CONFIG_HISAX_NICCY is not set
# CONFIG_HISAX_ISURF is not set
# CONFIG_HISAX_HSTSAPHIR is not set
# CONFIG_HISAX_BKM_A4T is not set
# CONFIG_HISAX_SCT_QUADRO is not set
# CONFIG_HISAX_GAZEL is not set
# CONFIG_HISAX_HFC_PCI is not set
# CONFIG_HISAX_W6692 is not set
# CONFIG_HISAX_HFC_SX is not set
# CONFIG_HISAX_DEBUG is not set

#
# HiSax PCMCIA card service modules
#

#
# HiSax sub driver modules
#
CONFIG_HISAX_ST5481=y
CONFIG_HISAX_HFCUSB=y
# CONFIG_HISAX_HFC4S8S is not set
CONFIG_HISAX_FRITZ_PCIPNP=y
CONFIG_HISAX_HDLC=y

#
# Active cards
#
CONFIG_ISDN_DRV_ICN=m
CONFIG_ISDN_DRV_PCBIT=m
CONFIG_ISDN_DRV_SC=y
# CONFIG_ISDN_DRV_ACT2000 is not set
CONFIG_HYSDN=m
# CONFIG_ISDN_DRV_GIGASET is not set
# CONFIG_ISDN_CAPI is not set
CONFIG_PHONE=y
CONFIG_PHONE_IXJ=m

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Kai Germaschewski <kai@germaschewski.name>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofile capabilities: don't prevent signaling setuid root programs
Serge E. Hallyn [Thu, 29 Nov 2007 00:21:47 +0000 (16:21 -0800)]
file capabilities: don't prevent signaling setuid root programs

An unprivileged process must be able to kill a setuid root program started
by the same user.  This is legacy behavior needed for instance for xinit to
kill X when the window manager exits.

When an unprivileged user runs a setuid root program in !SECURE_NOROOT
mode, fP, fI, and fE are set full on, so pP' and pE' are full on.  Then
cap_task_kill() prevents the user from signaling the setuid root task.
This is a change in behavior compared to when
!CONFIG_SECURITY_FILE_CAPABILITIES.

This patch introduces a special check into cap_task_kill() just to check
whether a non-root user is signaling a setuid root program started by the
same user.  If so, then signal is allowed.

Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: Andrew Morgan <morgan@kernel.org>
Cc: Stephen Smalley <sds@epoch.ncsc.mil>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: James Morris <jmorris@namei.org>
Cc: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agohexdump: don't print bytes with bit 7 set
Randy Dunlap [Thu, 29 Nov 2007 00:21:46 +0000 (16:21 -0800)]
hexdump: don't print bytes with bit 7 set

As Herbert Xu pointed out, bytes (chars) with bit 7 (0x80) set are true
with isprint() but they may not be isascii() but be Unicode instead, so
don't try to print them in hex dumps.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofix up ext2_fs.h for userspace after reservations backport
Tobias Poschwatta [Thu, 29 Nov 2007 00:21:45 +0000 (16:21 -0800)]
fix up ext2_fs.h for userspace after reservations backport

In commit a686cd898bd999fd026a51e90fb0a3410d258ddb:

 "Val's cross-port of the ext3 reservations code into ext2."

include/linux/ext2_fs.h got a new function whose return value is only
defined if __KERNEL__ is defined. Putting #ifdef __KERNEL__ around the
function seems to help, patch below.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoIP22ZILOG: fix lockup and sysrq
Thomas Bogendoerfer [Thu, 29 Nov 2007 00:21:44 +0000 (16:21 -0800)]
IP22ZILOG: fix lockup and sysrq

 - fix lockup when switching from early console to real console
 - make sysrq reliable
 - fix panic, if sysrq is issued before console is opened

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agodmaengine: correct invalid assumptions in the Kconfig text
Haavard Skinnemoen [Thu, 29 Nov 2007 00:21:43 +0000 (16:21 -0800)]
dmaengine: correct invalid assumptions in the Kconfig text

This patch corrects recently changed (and now invalid) Kconfig descriptions
for the DMA engine framework:

 - Non-Intel(R) hardware also has DMA engines;
 - DMA is used for more than memcpy and RAID offloading.

In fact, on most platforms memcpy and RAID aren't factors, and DMA
exists so that peripherals can transfer data to/from memory while
the CPU does other work.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoatmel_lcdfb: LCDC startup fix
Anti Sullin [Thu, 29 Nov 2007 00:21:40 +0000 (16:21 -0800)]
atmel_lcdfb: LCDC startup fix

This patch adds an additional loop, that delays turning off the DMA
until the LCDC core has been turned off. This prevents the picture
to be shifted some random length when the kernel re-initializes
the LCDC.

Without this patch, the LCDC keeps running for some small time after the
PWRCON:LCD_PWR has been cleared ; the FIFO suffers an underrun and on
re-starting the LCDC the FIFO data stays shifted.

This behavior has been seen and fixed on AT91SAM9261-EK and two custom
AT91SAM9261 boards, all of them having different LCD panels.

Thanks a lot to Anti Sullin for submitting this patch (long
time ago).

Signed-off-by: Anti Sullin <anti.sullin@artecdesign.ee>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoThe namespaces compatibility list doc
Pavel Emelyanov [Thu, 29 Nov 2007 00:21:39 +0000 (16:21 -0800)]
The namespaces compatibility list doc

People discuss how the namespaces are working/going-to-work together.

Ted Ts'o proposed to create some document that describes what problems user
may have when he/she creates some new namespace, but keeps others shared.
I liked this idea, so here's the initial version of such a document with
the problems I currently have in mind and can describe somewhat audibly -
the "namespaces compatibility list".

The Documentation/namespaces/ directory is about to contain more docs about
the namespaces stuff.

Thanks to Cedirc for notes and spell checks on the doc, to Daniel for
additional info about IPC and User namespaces interaction and to Randy, who
alluded me to using a spell checker before sending the documentation :)

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Daniel Lezcano <dlezcano@fr.ibm.com>
Cc: Theodore Tso <tytso@mit.edu>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoIsolate the UTS namespace's domainname and hostname back
Pavel Emelyanov [Thu, 29 Nov 2007 00:21:38 +0000 (16:21 -0800)]
Isolate the UTS namespace's domainname and hostname back

Commit 7d69a1f4a72b18876c99c697692b78339d491568 ("remove CONFIG_UTS_NS
and CONFIG_IPC_NS") by Cedric Le Goater accidentally removed the code
that prevented the uts->hostname and uts->domainname values from being
overwritten from another namespace.

In other words, setting hostname/domainname via sysfs (echo xxx >
/proc/sys/kernel/(host|domain)name) cased the new value to be set in
init UTS namespace only.

Return the isolation back.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Cedric Le Goater <clg@fr.ibm.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMFD: SM501 debug typo fix
Ben Dooks [Thu, 29 Nov 2007 00:21:37 +0000 (16:21 -0800)]
MFD: SM501 debug typo fix

Remove errnoeous x character from dev_dbg() call that stops the driver
compiling under debug.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agodrivers/pnp/resource.c: Add missing pci_dev_put
Julia Lawall [Thu, 29 Nov 2007 00:21:36 +0000 (16:21 -0800)]
drivers/pnp/resource.c: Add missing pci_dev_put

There should be a pci_dev_put when breaking out of a loop that iterates
over calls to pci_get_device and similar functions.

This was fixed using the following semantic patch.

// <smpl>
@@
identifier d;
type T;
expression e;
iterator for_each_pci_dev;
@@

T *d;
...
for_each_pci_dev(d)
   {... when != pci_dev_put(d)
        when != e = d
(
    return d;
|
+  pci_dev_put(d);
?  return ...;
)
...}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Greg KH <greg@kroah.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofb_ddc: fix DDC lines quirk
Jean Delvare [Thu, 29 Nov 2007 00:21:35 +0000 (16:21 -0800)]
fb_ddc: fix DDC lines quirk

The code in fb_ddc_read() is said to be based on the implementation of the
radeon driver:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=fc5891c8a3ba284f13994d7bc1f1bfa8283982de

However, comparing the old radeon driver code with the new fb_ddc code
reveals some differences.  Most notably, the I2C bus lines are held at the
end of the function, while the original code was releasing them (as the
comment above correctly says.)

There are a few other differences, which appear to be responsible for read
failures on my system.  While tracing low-level I2C code in i2c-algo-bit, I
noticed that the initial attempt to read the EDID always failed.  It takes
one retry for the read to succeed.  As we are about to remove this
automatic retry property from i2c-algo-bit, reading the EDID would really
fail.

As a summary, the I2C lines quirk which is supposedly needed to read EDID
on some older monitors is currently breaking the (first) read on all other
monitors (and might not even work with older ones - did anyone try since
October 2006?)

After applying the patch below, which makes the code in fb_ddc_read()
really similar to what the radeon driver used to have, the first EDID read
succeeds again.

On top of that, as it appears that this code has been broken for one year
now and nobody seems to have complained, I'm curious if it makes sense to
keep this quirk in place.  It makes the code more complex and slower just
for the sake of monitors which I guess nobody uses anymore.  Can't we just
get rid of it?

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Roger Leigh <rleigh@whinlatter.ukfsn.org>
Tested-by: Michael Buesch <mb@bu3sch.de>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agom68k: zorro7xx needs <asm/amigahw.h>
Geert Uytterhoeven [Thu, 29 Nov 2007 00:21:33 +0000 (16:21 -0800)]
m68k: zorro7xx needs <asm/amigahw.h>

m68k: zorro7xx needs <asm/amigahw.h> if !CONFIG_AMIGA_PCMCIA

Reported by Ingo Juergensmann <ij@2007.bluespice.org>

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFix <linux/kd.h> usage in userspace
David Woodhouse [Thu, 29 Nov 2007 00:21:32 +0000 (16:21 -0800)]
Fix <linux/kd.h> usage in userspace

For reasons unclear to me, glibc's <sys/kd.h> deliberately defeats the
attempt we make in <linux/kd.h> to include <linux/types.h>

For now, change the one instance of __u32 to 'unsigned int' instead
because it's breaking userspace. We should probably also remove our
inclusion of <linux/types.h>, since we don't use it -- but that's not a
change to make in -rc.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoipc: lost unlock and fput in mqueue.c on error path
Pavel Emelyanov [Thu, 29 Nov 2007 00:21:31 +0000 (16:21 -0800)]
ipc: lost unlock and fput in mqueue.c on error path

The error path in sys_mq_getsetattr() after the call to
audit_mq_getsetattr() is wrong - the info->lock is not unlocked and the
struct file *filp is not put.

Fix them both.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Pierre Peiffer <pierre.peiffer@bull.net>
Cc: Nadia Derbey <Nadia.Derbey@bull.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agospi: S3C2410: add bus number to SPI GPIO driver
David Brownell [Thu, 29 Nov 2007 00:21:30 +0000 (16:21 -0800)]
spi: S3C2410: add bus number to SPI GPIO driver

Allow passing a bus number through the platform data for the S3C2410 SPI
GPIO driver.   This is needed to support multiple SPI busses.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoS3C24XX: ensure we only configure valid GPIOs
Ben Dooks [Thu, 29 Nov 2007 00:21:29 +0000 (16:21 -0800)]
S3C24XX: ensure we only configure valid GPIOs

If we specify an GPIO which cannot be used for the purpose, then assume
that the GPIO is not to be used and do not try and configure it.  This can
be the case where the SPI bus is TX only.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agotermios: document callback more clearly
Alan Cox [Thu, 29 Nov 2007 00:21:28 +0000 (16:21 -0800)]
termios: document callback more clearly

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoTPM: fix TIS device driver locality request
Marcel Selhorst [Thu, 29 Nov 2007 00:21:27 +0000 (16:21 -0800)]
TPM: fix TIS device driver locality request

During the initialization of the TPM TIS driver, the necessary locality has
to be requested earlier in the init-process.  Depending on the used TPM
chip, this leads to wrong information.  For example: Lenovo X61s with Atmel
TPM:

tpm_tis 00:0a: 1.2 TPM (device-id 0xFFFF, rev-id 255)

But correct is:

tpm_tis 00:0c: 1.2 TPM (device-id 0x3203, rev-id 9)

This short patch fixes this issue.

Signed-off-by: Marcel Selhorst <tpm@selhorst.net>
Cc: Kylene Jo Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoproc: remove races from proc_id_readdir()
Eric W. Biederman [Thu, 29 Nov 2007 00:21:26 +0000 (16:21 -0800)]
proc: remove races from proc_id_readdir()

Oleg noticed that the call of task_pid_nr_ns() in proc_pid_readdir
is racy with respect to tasks exiting.

After a bit of examination it also appears that the call itself
is completely unnecessary.

So to fix the problem this patch modifies next_tgid() to return
both a tgid and the task struct in question.

A structure is introduced to return these values because it is
slightly cleaner and easier to optimize, and the resulting code
is a little shorter.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agowait_task_stopped(): don't use task_pid_nr_ns() lockless
Oleg Nesterov [Thu, 29 Nov 2007 00:21:24 +0000 (16:21 -0800)]
wait_task_stopped(): don't use task_pid_nr_ns() lockless

wait_task_stopped(WNOWAIT) does task_pid_nr_ns() without tasklist/rcu lock,
we can read an already freed memory.  Use the cached pid_t value.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Looks-good-to: Roland McGrath <roland@redhat.com>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoproc: fix NULL ->i_fop oops
Alexey Dobriyan [Thu, 29 Nov 2007 00:21:23 +0000 (16:21 -0800)]
proc: fix NULL ->i_fop oops

proc_kill_inodes() can clear ->i_fop in the middle of vfs_readdir resulting in
NULL dereference during "file->f_op->readdir(file, buf, filler)".

The solution is to remove proc_kill_inodes() completely:

a) we don't have tricky modules implementing their tricky readdir hooks which
   could keeping this revoke from hell.

b) In a situation when module is gone but PDE still alive, standard
   readdir will return only "." and "..", because pde->next was cleared by
   remove_proc_entry().

c) the race proc_kill_inode() destined to prevent is not completely
   fixed, just race window made smaller, because vfs_readdir() is run
   without sb_lock held and without file_list_lock held.  Effectively,
   ->i_fop is cleared at random moment, which can't fix properly anything.

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000018
printing eip: c1061205 *pdpt = 0000000005b22001 *pde = 0000000000000000
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: foo af_packet ipv6 cpufreq_ondemand loop serio_raw sr_mod k8temp cdrom hwmon amd_rng
Pid: 2033, comm: find Not tainted (2.6.24-rc1-b1d08ac064268d0ae2281e98bf5e82627e0f0c56 #2)
EIP: 0060:[<c1061205>] EFLAGS: 00010246 CPU: 0
EIP is at vfs_readdir+0x47/0x74
EAX: c6b6a780 EBX: 00000000 ECX: c1061040 EDX: c5decf94
ESI: c6b6a780 EDI: fffffffe EBP: c9797c54 ESP: c5decf78
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process find (pid: 2033, ti=c5dec000 task=c64bba90 task.ti=c5dec000)
Stack: c5decf94 c1061040 fffffff7 0805ffbc 00000000 c6b6a780 c1061295 0805ffbc
       00000000 00000400 00000000 00000004 0805ffbc 4588eff4 c5dec000 c10026ba
       00000004 0805ffbc 00000400 0805ffbc 4588eff4 bfdc6c70 000000dc 0000007b
Call Trace:
 [<c1061040>] filldir64+0x0/0xc5
 [<c1061295>] sys_getdents64+0x63/0xa5
 [<c10026ba>] sysenter_past_esp+0x5f/0x85
 =======================
Code: 49 83 78 18 00 74 43 8d 6b 74 bf fe ff ff ff 89 e8 e8 b8 c0 12 00 f6 83 2c 01 00 00 10 75 22 8b 5e 10 8b 4c 24 04 89 f0 8b 14 24 <ff> 53 18 f6 46 1a 04 89 c7 75 0b 8b 56 0c 8b 46 08 e8 c8 66 00
EIP: [<c1061205>] vfs_readdir+0x47/0x74 SS:ESP 0068:c5decf78

hch: "Nice, getting rid of this is a very good step formwards.
      Unfortunately we have another copy of this junk in
      security/selinux/selinuxfs.c:sel_remove_entries() which would need the
      same treatment."

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Acked-by: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoPNP: increase the maximum number of resources
Zhao Yakui [Thu, 29 Nov 2007 00:21:21 +0000 (16:21 -0800)]
PNP: increase the maximum number of resources

On some systems the number of resources(IO,MEM) returnedy by PNP device is
greater than the PNP constant, for example motherboard devices.  It brings
that some resources can't be reserved and resource confilicts.  This will
cause PCI resources are assigned wrongly in some systems, and cause hang.
This is a regression since we deleted ACPI motherboard driver and use PNP
system driver.

[akpm@linux-foundation.org: fix text and coding-style a bit]
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoxen: mask _PAGE_PCD from ptes
Jeremy Fitzhardinge [Thu, 29 Nov 2007 00:21:20 +0000 (16:21 -0800)]
xen: mask _PAGE_PCD from ptes

_PAGE_PCD maps a page with caching disabled, which is typically used for
mapping harware registers.  Xen never allows it to be set on a mapping, and
unprivileged guests never need it since they can't see the real underlying
hardware.  However, some uncached mappings are made early when probing the
(non-existent) APIC, and its OK to mask off the PCD flag in these cases.

This became necessary because Xen started checking for this bit, rather
than silently masking it off.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoUML: build fix
WANG Cong [Thu, 29 Nov 2007 00:21:16 +0000 (16:21 -0800)]
UML: build fix

include/asm-um/arch points to the non-existed include/asm-i386 directory.

Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Jeff Dike <jdike@karaya.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFix boot problem with iSeries lacking hugepage support
Mel Gorman [Thu, 29 Nov 2007 00:21:13 +0000 (16:21 -0800)]
Fix boot problem with iSeries lacking hugepage support

Ordinarily the size of a pageblock is determined at compile-time based on the
hugepage size. On PPC64, the hugepage size is determined at runtime based on
what is supported by the machine. With legacy machines such as iSeries that
do not support hugepages, HPAGE_SHIFT is 0. This results in pageblock_order
being set to -PAGE_SHIFT and a crash results shortly afterwards.

This patch adds a function to select a sensible value for pageblock order by
default when HUGETLB_PAGE_SIZE_VARIABLE is set. It checks that HPAGE_SHIFT
is a sensible value before using the hugepage size; if it is not MAX_ORDER-1
is used.

This is a fix for 2.6.24.

Credit goes to Stephen Rothwell for identifying the bug and testing candidate
patches.  Additional credit goes to Andy Whitcroft for spotting a problem
with respects to IA-64 before releasing. Additional credit to David Gibson
for testing with the libhugetlbfs test suite.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agops3fb: video memory size cleanups
Geert Uytterhoeven [Thu, 29 Nov 2007 00:21:11 +0000 (16:21 -0800)]
ps3fb: video memory size cleanups

- Limit video memory size to avoid crossing a 256 MiB boundary in IOIF space.
- Pass the actual amount of video memory used to lv1_gpu_memory_allocate().

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agops3: prefix all ps3-specific kernel modules with `ps3-'
Geert Uytterhoeven [Thu, 29 Nov 2007 00:21:11 +0000 (16:21 -0800)]
ps3: prefix all ps3-specific kernel modules with `ps3-'

- vuart.ko -> ps3-vuart.ko
- sys-manager.ko -> ps3-sys-manager.ko

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoatmel_spi: label GPIOs better
David Brownell [Thu, 29 Nov 2007 00:21:10 +0000 (16:21 -0800)]
atmel_spi: label GPIOs better

Make the atmel_spi driver label GPIOs according to the device for which
they're acting as a chipselect.  This way the debugfs dump of gpio state is
more informative.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>