Nathan Lynch [Sun, 23 Mar 2008 22:51:45 +0000 (09:51 +1100)]
[POWERPC] scanlog_init cleanup and minor fixes
scanlog_init() could use some love.
* properly return -ENODEV if this system doesn't support scan-log-dump
* don't printk if scan-log-dump not present; only older systems have it
* convert from create_proc_entry() to preferred proc_create()
* allocate zeroed data buffer
* fix potential memory leak of ent->data on failed create_proc_entry()
* simplify control flow
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Robert P. J. Day [Sat, 22 Mar 2008 19:05:43 +0000 (06:05 +1100)]
[POWERPC] Move a.out.h to header-y since it doesn't check __KERNEL__
Since a.out.h doesn't check the value of __KERNEL__, there's no point
in unifdef'ing it.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Sat, 22 Mar 2008 00:40:53 +0000 (11:40 +1100)]
[POWERPC] pseries: phyp dump: Inform kdump when phyp-dump is loaded
This adds /sys/kernel/phyp_dump_active so that kdump init scripts may
look for it and take appropriate action if this file is found. This
file is only created when phyp_dump has been registered.
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Sat, 22 Mar 2008 00:38:59 +0000 (11:38 +1100)]
[POWERPC] pseries: phyp dump: Disable phyp-dump through boot-var
This adds a kernel command line option "phyp_dump", which takes a 0/1
value for disabling/ enabling phyp_dump at boot time. Kdump can use
this on cmdline (phyp_dump=0) to disable phyp-dump during boot when
enabling itself. This will ensure only one dumping mechanism is active
at any given time.
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Fri, 21 Mar 2008 23:50:50 +0000 (10:50 +1100)]
[POWERPC] pseries: phyp dump: Add Kconfig file option
Add hypervisor-assisted dump to kernel config.
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Fri, 21 Mar 2008 23:47:04 +0000 (10:47 +1100)]
[POWERPC] pseries: phyp dump: Tracking memory range freed
This tracks the size freed. For now it does a simple rudimentary
calculation of the ranges freed. The idea is to keep it simple at the
external shell script level and send in large chunks for now.
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Fri, 21 Mar 2008 23:45:22 +0000 (10:45 +1100)]
[POWERPC] pseries: phyp dump: Invalidate and print dump areas
This adds routines to
a. invalidate dump
b. calculate region that is reserved and needs to be freed. This is
exported through sysfs interface.
Unregister has been removed for now as it wasn't being used.
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Fri, 21 Mar 2008 23:44:05 +0000 (10:44 +1100)]
[POWERPC] pseries: phyp dump: Debugging print routines
Provide some basic debugging support.
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Fri, 21 Mar 2008 23:43:15 +0000 (10:43 +1100)]
[POWERPC] pseries: phyp dump: Register dump area
Set up the actual dump header, register it with the hypervisor.
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Fri, 21 Mar 2008 23:39:17 +0000 (10:39 +1100)]
[POWERPC] pseries: phyp dump: Use sysfs to release reserved mem
Check to see if there actually is data from a previously
crashed kernel waiting. If so, allow user-space tools to
grab the data (by reading /proc/kcore). When user-space
finishes dumping a section, it must release that memory
by writing to sysfs. For example,
echo "0x40000000 0x10000000" > /sys/kernel/release_region
will release 256MB starting at the 1GB. The released memory
becomes free for general use.
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Fri, 21 Mar 2008 23:37:08 +0000 (10:37 +1100)]
[POWERPC] pseries: phyp dump: Reserve and release memory
Initial patch for reserving memory in early boot, and freeing it
later. If the previous boot had ended with a crash, the reserved
memory would contain a copy of the crashed kernel data.
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Manish Ahuja [Fri, 21 Mar 2008 23:33:10 +0000 (10:33 +1100)]
[POWERPC] pseries: phyp dump: Documentation
Basic documentation for hypervisor-assisted dump.
Signed-off-by: Linas Vepstas <linasvepstas@gmail.com>
Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Roland McGrath [Wed, 19 Mar 2008 21:07:51 +0000 (08:07 +1100)]
[POWERPC] powerpc32: Remove asm-offsets ptrace cruft
These items in asm-offsets.c are not used anywhere. This removes them.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
S.Çağlar Onur [Mon, 17 Mar 2008 09:36:26 +0000 (20:36 +1100)]
[POWERPC] arch/powerpc/platforms/iseries/pci.c: Use time_* macros
The functions time_before, time_before_eq, time_after, and
time_after_eq are more robust for comparing jiffies against other
values.
This implements usage of the time_after() macro, defined at
linux/jiffies.h, which deals with wrapping correctly.
Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tony Breeds [Mon, 17 Mar 2008 05:23:29 +0000 (16:23 +1100)]
[POWERPC] Update wait_state_cycles in the VPA
The hypervisor can look at the value in the wait_state_cycles field of
the VPA for an estimate of how busy dedicated processors are.
Currently, as the kernel never touches this field, we appear to be
100% busy. This records the duration the kernel is in powersave and
passes that to the HV to provide a reasonable indication of
utilisation.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Roland McGrath [Mon, 17 Mar 2008 05:01:20 +0000 (16:01 +1100)]
[POWERPC] Don't touch PT_DTRACE in exec
The PT_DTRACE flag is meaningless and obsolete.
Don't touch it.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Stephen Rothwell [Thu, 13 Mar 2008 05:20:31 +0000 (16:20 +1100)]
[POWERPC] Really export empty_zero_page
It was being protected by CONFIG_PPC32, but we want to export it on
64-bit also. This moves it out of the ifdef.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Wed, 12 Mar 2008 23:43:05 +0000 (10:43 +1100)]
[POWERPC] maple: Enable ipr driver in defconfig
Some machines supported by the maple platform have an Obsidian
controller which can't be used without enabling CONFIG_IPR and the
options on which it depends.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Wed, 12 Mar 2008 23:43:04 +0000 (10:43 +1100)]
[POWERPC] maple: Kill fixup_maple_ide
This function has been a no-op for about 18 months; it's there in
the history should anyone need to resurrect it.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Wed, 12 Mar 2008 23:43:03 +0000 (10:43 +1100)]
[POWERPC] maple: Use platform name in define_machine()
Prevailing practice for define_machine() in powerpc is to use the
platform name when the platform has only one define_machine()
statement, but maple uses "maple_md". This caused me some
head-scratching when writing some new code that uses
machine_is(maple).
Use "maple" instead of "maple_md". There should not be any behavioral
change -- fixup_maple_ide() calls machine_is(maple) but the body of
the function is ifdef'd out.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Marian Balakowicz [Fri, 9 Nov 2007 17:11:43 +0000 (04:11 +1100)]
[POWERPC] Add 'model: ...' line to common show_cpuinfo()
Print out 'model' property of '/' node as a machine name
in generic show_cpuinfo() routine.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 13 Mar 2008 04:26:33 +0000 (15:26 +1100)]
Merge branch 'linux-2.6'
Linus Torvalds [Thu, 13 Mar 2008 00:00:35 +0000 (17:00 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (22 commits)
[POWERPC] Fix large hash table allocation on Cell blades
[POWERPC] Export empty_zero_page
[POWERPC] Fix viodasd driver with scatterlist debug
[POWERPC] Fix arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU
[POWERPC] Fix drivers/macintosh/mediabay.c when !CONFIG_ADB_PMU
[POWERPC] Fix undefined pmu_sys_suspended compilation error
[POWERPC] Fix build of modular drivers/macintosh/apm_emu.c
[POWERPC] Fix sleep on some powerbooks
[POWERPC] Fix bogus test for unassigned PCI resources
[POWERPC] Fix zImage-dtb.initrd build error
[POWERPC] Add __ucmpdi2 for 64-bit comparisons in 32-bit kernels
[POWERPC] spufs: fix rescheduling of non-runnable contexts
[POWERPC] spufs: don't (ab)use SCHED_IDLE
[POWERPC] QE: Make qe_get_firmware_info reentrant
[POWERPC] 83xx: Make 83xx perfmon support selectable
[PPC] 8xx: swap bug-fix
[POWERPC] 85xx: sbc8548 - Fix incorrect PCI-X and PCI interrupt map
[POWERPC] QE: Fix QE firmware uploading limit
[POWERPC] 8xx: Fix wrapper platform for adder875, and combine defconfigs.
[POWERPC] 8xx: fix swap
...
Michael Ellerman [Wed, 12 Mar 2008 07:03:24 +0000 (18:03 +1100)]
[POWERPC] Fix large hash table allocation on Cell blades
My recent hack to allocate the hash table under 1GB on cell was poorly
tested, *cough*. It turns out on blades with large amounts of memory we
fail to allocate the hash table at all. This is because RTAS has been
instantiated just below 768MB, and 0-x MB are used by the kernel,
leaving no areas that are both large enough and also naturally-aligned.
For the cell IOMMU hack the page tables must be under 2GB, so use that
as the limit instead. This has been tested on real hardware and boots
happily.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Theodore Ts'o [Wed, 12 Mar 2008 20:24:31 +0000 (07:24 +1100)]
[POWERPC] Export empty_zero_page
Once again, this time with feeling....
- Ted
>From
c91cfaabc17f8a53807a2f31f067a732e34a1550 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 12 Mar 2008 11:50:39 -0400
Subject: Export empty_zero_page
The empty_zero_page symbol is exported by most other architectures
(s390, ia64, x86, um), and an upcoming ext4 patch needs it because
ZERO_PAGE() references empty_zero_page, and we need it to zero out an
unitialized extents in ext4 files.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Wed, 12 Mar 2008 06:23:56 +0000 (17:23 +1100)]
[POWERPC] Fix viodasd driver with scatterlist debug
The iSeries viodasd drivers does some very strange things with
scatterlists, one of these causing a BUG_ON to trigger when
scatterlist debugging is enabled due to initializing the
scatterlist with memset instead of sg_init_table().
This fixes it by using sg_init_table(). The rest of the stuff
it does to that poor list is still pretty awful but it will work.
I may look into fixing things in a nicer way some other time.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tony Breeds [Tue, 11 Mar 2008 23:48:48 +0000 (10:48 +1100)]
[POWERPC] Fix arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU
When building arch/powerpc/platforms/powermac/pic.c when !CONFIG_ADB_PMU
we get the following warnings:
arch/powerpc/platforms/powermac/pic.c: In function 'pmacpic_find_viaint':
arch/powerpc/platforms/powermac/pic.c:623: warning: label 'not_found' defined but not used
This fixes it.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tony Breeds [Tue, 11 Mar 2008 23:48:48 +0000 (10:48 +1100)]
[POWERPC] Fix drivers/macintosh/mediabay.c when !CONFIG_ADB_PMU
When building drivers/macintosh/mediabay.c if CONFIG_ADB_PMU isn't
defined we get:
drivers/built-in.o: In function `media_bay_step':
mediabay.c:(.text+0x92b84): undefined reference to `pmu_suspend'
mediabay.c:(.text+0x92c08): undefined reference to `pmu_resume'
Create empty place holders in that scenario.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tony Breeds [Tue, 11 Mar 2008 23:48:48 +0000 (10:48 +1100)]
[POWERPC] Fix undefined pmu_sys_suspended compilation error
pmu_sys_suspended is declared extern when:
defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32)
but only defined when:
defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32)
which is wrong. Let's fix that.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Guido Guenther [Sat, 8 Mar 2008 19:20:17 +0000 (06:20 +1100)]
[POWERPC] Fix build of modular drivers/macintosh/apm_emu.c
Currently, if drivers/macintosh/apm_emu is a module and the config
doesn't have CONFIG_SUSPEND we get:
ERROR: "pmu_batteries" [drivers/macintosh/apm_emu.ko] undefined!
ERROR: "pmu_battery_count" [drivers/macintosh/apm_emu.ko] undefined!
ERROR: "pmu_power_flags" [drivers/macintosh/apm_emu.ko] undefined!
on PPC32. The variables aren't wrapped in '#if defined(CONFIG_SUSPEND)'
so we probably shouldn't wrap the exports either. This removes the
CONFIG_SUSPEND part of the export, which fixes compilation on ppc32.
Signed-off-by: Guido Guenther <agx@sigxcpu.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Mon, 3 Mar 2008 06:27:46 +0000 (17:27 +1100)]
[POWERPC] Fix sleep on some powerbooks
The PMU backlight code would kick in during sleep/resume even on
machines that use a different backlight method. This breaks
sleep on some PowerBooks.
This fixes it by adding a flag to indicate whether the backlight
is controlled by the PMU, and testing that before trying to use
the PMU to turn off the backlight during sleep.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Fri, 29 Feb 2008 03:58:03 +0000 (14:58 +1100)]
[POWERPC] Fix bogus test for unassigned PCI resources
A bogus test for unassigned resources that came from our 32-bit
PCI code ended up being "merged" by my previous patch series,
breaking some 64-bit setups where devices have legal resources
ending at 0xffffffff.
This fixes it by completely changing the test. We now test for
res->start == 0, as the generic code expects, and we also only
do so on platforms that don't have the PPC_PCI_PROBE_ONLY flag
set, as there are cases of pSeries and iSeries where it could
be a valid value and those can't reassign devices.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Grant Likely [Thu, 21 Feb 2008 18:57:07 +0000 (05:57 +1100)]
[POWERPC] Fix zImage-dtb.initrd build error
The pattern substitution rules were failing when used with zImage-dtb
targets. If zImage-dtb.initrd was selected, the pattern substitution
would generate "zImage.initrd-dtb" instead of "zImage-dtb.initrd" which
caused the build to fail.
This renames zImage-dtb to dtbImage to avoid the problem entirely.
By not using the zImage prefix then is no potential for namespace
collisions.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 12 Mar 2008 22:39:55 +0000 (09:39 +1100)]
[POWERPC] Add __ucmpdi2 for 64-bit comparisons in 32-bit kernels
Some drivers (such as V4L2) have code that causes gcc to generate
calls to __ucmpdi2 when compiling for 32-bit powerpc, which results
in either a link-time error or a module that can't be loaded, as
we don't currently have a __ucmpdi2. This adds one so these drivers
can be used.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Linus Torvalds [Wed, 12 Mar 2008 20:08:09 +0000 (13:08 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits)
[SCTP]: Fix local_addr deletions during list traversals.
net: fix build with CONFIG_NET=n
[TCP]: Prevent sending past receiver window with TSO (at last skb)
rt2x00: Add new D-Link USB ID
rt2x00: never disable multicast because it disables broadcast too
libertas: fix the 'compare command with itself' properly
drivers/net/Kconfig: fix whitespace for GELIC_WIRELESS entry
[NETFILTER]: nf_queue: don't return error when unregistering a non-existant handler
[NETFILTER]: nfnetlink_queue: fix EPERM when binding/unbinding and instance 0 exists
[NETFILTER]: nfnetlink_log: fix EPERM when binding/unbinding and instance 0 exists
[NETFILTER]: nf_conntrack: replace horrible hack with ksize()
[NETFILTER]: nf_conntrack: add \n to "expectation table full" message
[NETFILTER]: xt_time: fix failure to match on Sundays
[NETFILTER]: nfnetlink_log: fix computation of netlink skb size
[NETFILTER]: nfnetlink_queue: fix computation of allocated size for netlink skb.
[NETFILTER]: nfnetlink: fix ifdef in nfnetlink_compat.h
[NET]: include <linux/types.h> into linux/ethtool.h for __u* typedef
[NET]: Make /proc/net a symlink on /proc/self/net (v3)
RxRPC: fix rxrpc_recvmsg()'s returning of msg_name
net/enc28j60: oops fix
...
Linus Torvalds [Wed, 12 Mar 2008 20:07:12 +0000 (13:07 -0700)]
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
i2c: chips subdirectory is deprecated
i2c: Keep client->driver and client->dev.driver in sync
i2c-amd756: Fix off-by-one
Linus Torvalds [Wed, 12 Mar 2008 20:04:11 +0000 (13:04 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Clocksource: Only install r4k counter as clocksource if present.
[MIPS] Lasat: fix LASAT_CASCADE_IRQ
[MIPS] Delete leftovers of old pcspeaker support.
[MIPS] BCM1480: Init pci controller io_map_base
[MIPS] Yosemite: Fix a few more section reference bugs.
[MIPS] Fix yosemite build error
[MIPS] Fix loads of section missmatches
[MIPS] IP27: Tighten up CPU description to fix warnings.
[MIPS] Fix plat_ioremap for JMR3927
[MIPS] Export __ucmpdi2 to modules.
[MIPS] Fix typo in comment
[MIPS] Use KBUILD_DEFCONFIG
[MIPS] Allow 48Hz to be selected if CONFIG_SYS_SUPPORTS_ARBIT_HZ is set.
[MIPS] Added missing cases for rdhwr emulation
[MIPS] Alchemy: Fix ids in Alchemy db dma device table
Bjorn Helgaas [Tue, 11 Mar 2008 21:24:41 +0000 (15:24 -0600)]
PNP: disable PNP motherboard resources that overlap PCI BARs
Some BIOSes have PNP motherboard devices with resources that
partially overlap PCI BARs. The PNP system driver claims these
motherboard resources, which prevents the normal PCI driver from
requesting them later.
This patch disables the PNP resources that conflict with PCI BARs
so they won't be claimed by the PNP system driver.
Of course, this only works if PCI devices have already been enumerated.
Currently this is the case because PCI devices are discovered before
any PNP init via this path:
acpi_pci_root_init() -> acpi_pci_root_add() -> pci_acpi_scan_root() ->
pci_scan_bus_parented() -> pci_scan_child_bus() -> ...
Avuton Olrich tested this and confirmed that it fixes his ALSA sound
card (see http://lkml.org/lkml/2008/1/27/168).
References:
https://bugzilla.redhat.com/show_bug.cgi?id=280641
https://bugzilla.redhat.com/show_bug.cgi?id=313491
http://lkml.org/lkml/2008/1/9/449
http://thread.gmane.org/gmane.linux.acpi.devel/27312
http://lkml.org/lkml/2008/1/27/168
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bjorn Helgaas [Tue, 11 Mar 2008 21:24:40 +0000 (15:24 -0600)]
PNP: revert Supermicro H8DCE motherboard quirk
There are other systems with similar problems
(http://lkml.org/lkml/2008/1/27/168), so we need a more
generic quirk. Remove the Supermicro-specific one first.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tom Tucker [Tue, 11 Mar 2008 18:31:40 +0000 (14:31 -0400)]
SVCRDMA: Fix erroneous BUG_ON in send_write
The assertion that checks for sge context overflow is
incorrectly hard-coded to 32. This causes a kernel bug
check when using big-data mounts. Changed the BUG_ON to
use the computed value RPCSVC_MAXPAGES.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tom Tucker [Tue, 11 Mar 2008 18:31:39 +0000 (14:31 -0400)]
SVCRDMA: Add xprt refs to fix close/unmount crash
RDMA connection shutdown on an SMP machine can cause a kernel crash due
to the transport close path racing with the I/O tasklet.
Additional transport references were added as follows:
- A reference when on the DTO Q to avoid having the transport
deleted while queued for I/O.
- A reference while there is a QP able to generate events.
- A reference until the DISCONNECTED event is received on the CM ID
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roland McGrath [Wed, 12 Mar 2008 00:13:15 +0000 (17:13 -0700)]
genhd must_check warning fix
Fixes:
block/genhd.c:361: warning: ignoring return value of ‘class_register’, declared with attribute warn_unused_result
Signed-off-by: Roland McGrath <roland@redhat.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Woodhouse [Wed, 12 Mar 2008 16:52:56 +0000 (17:52 +0100)]
Remove <linux/genhd.h> from user-visible headers.
It was all wrapped in '#ifdef CONFIG_BLOCK' anyway, so userspace was
getting nothing useful out of it. And the special #ifndef __KERNEL__
version of 'struct partition' makes me inclined to promote an attitude
of violence...
Stick some comments on some of the #endifs too, while we're at it.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Mundt [Wed, 12 Mar 2008 07:51:31 +0000 (16:51 +0900)]
nommu: Provide is_vmalloc_addr() stub.
Introduced in commit-id
9e2779fa281cfda13ac060753d674bbcaa23367e and
ifdef'ed out for nommu in
8ca3ed87db062201e1fa15b64a9214e193fc3a8a, both
approaches end up breaking the nommu build in different ways. An
impressive feat for a 2-liner.
Current is_vmalloc_addr() users fall in to two camps:
- Determining whether to use vfree()/kfree()
- Whether to do vmlist traversal (only /proc/kcore).
Since we don't support /proc/kcore on nommu, that leaves the
vfree()/kfree() determination use cases. nommu vfree() happens to be a
wrapper to kfree() anyways, so is_vmalloc_addr() can always return 0
and end up with the right behaviour.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ralf Baechle [Wed, 12 Mar 2008 13:58:10 +0000 (13:58 +0000)]
[MIPS] Clocksource: Only install r4k counter as clocksource if present.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Yoichi Yuasa [Wed, 20 Feb 2008 14:11:53 +0000 (23:11 +0900)]
[MIPS] Lasat: fix LASAT_CASCADE_IRQ
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 10 Mar 2008 16:20:00 +0000 (16:20 +0000)]
[MIPS] Delete leftovers of old pcspeaker support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Thomas Bogendoerfer [Sat, 8 Mar 2008 18:51:55 +0000 (19:51 +0100)]
[MIPS] BCM1480: Init pci controller io_map_base
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 10 Mar 2008 12:11:48 +0000 (12:11 +0000)]
[MIPS] Yosemite: Fix a few more section reference bugs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 10 Mar 2008 09:31:50 +0000 (09:31 +0000)]
[MIPS] Fix yosemite build error
<linux/mm.h> didn't pickup the definition of PKMAP_BASE from fixmap.h, ugh.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Sat, 8 Mar 2008 09:56:28 +0000 (09:56 +0000)]
[MIPS] Fix loads of section missmatches
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Sat, 8 Mar 2008 09:44:37 +0000 (09:44 +0000)]
[MIPS] IP27: Tighten up CPU description to fix warnings.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Atsushi Nemoto [Sat, 26 Jan 2008 05:08:02 +0000 (14:08 +0900)]
[MIPS] Fix plat_ioremap for JMR3927
TX39XX's "reserved" segment in CKSEG3 area is 0xff000000-0xfffeffff.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 4 Mar 2008 09:03:09 +0000 (09:03 +0000)]
[MIPS] Export __ucmpdi2 to modules.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Thiemo Seufer [Fri, 29 Feb 2008 00:43:47 +0000 (00:43 +0000)]
[MIPS] Fix typo in comment
We support now other page sizes as well.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Adrian Bunk [Tue, 26 Feb 2008 19:54:54 +0000 (21:54 +0200)]
[MIPS] Use KBUILD_DEFCONFIG
With KBUILD_DEFCONFIG we don't have to ship a second copy of ip22_defconfig.
Signed-off-by: Adrian Bunk <adrian.bunk@movial.fi>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Mon, 25 Feb 2008 16:55:29 +0000 (16:55 +0000)]
[MIPS] Allow 48Hz to be selected if CONFIG_SYS_SUPPORTS_ARBIT_HZ is set.
This allows a 48Hz clock to be selected on Malta and other systems. Note
this not normally a sensible option as it results in rather high latencies
for some kernel stuff.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Chris Dearman [Mon, 8 May 2006 17:02:16 +0000 (18:02 +0100)]
[MIPS] Added missing cases for rdhwr emulation
Some of these are architecturally required for R2 processors so lets try
to be bit closer to the real thing. This also provides access to the
CPU cycle timer, even on multiprocessors. In that aspect its currently
bug compatible to what would happen on a R2-based SMP.
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Wolfgang Ocker [Sun, 10 Feb 2008 19:31:33 +0000 (20:31 +0100)]
[MIPS] Alchemy: Fix ids in Alchemy db dma device table
0 is a valid device id (DSCR_CMD0_UART0_TX), so we can't use it to mark
an empty entry in the device table. Use ~0 instead and search for id ~0
when looking for a free entry.
Signed-off-by: Wolfgang Ocker <weo@reccoware.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jean Delvare [Wed, 12 Mar 2008 13:15:00 +0000 (14:15 +0100)]
i2c: chips subdirectory is deprecated
Let driver authors know that drivers/i2c/chips is usually the wrong place
for new drivers.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Hans Verkuil [Wed, 12 Mar 2008 13:15:00 +0000 (14:15 +0100)]
i2c: Keep client->driver and client->dev.driver in sync
Ensure that client->driver is set to NULL if the probe() returns an
error (this keeps client->driver and client->dev.driver in sync).
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Adrian Bunk [Wed, 12 Mar 2008 13:15:00 +0000 (14:15 +0100)]
i2c-amd756: Fix off-by-one
This patch fixes an off-by-one error spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Paul Mackerras [Wed, 12 Mar 2008 06:13:57 +0000 (17:13 +1100)]
Merge branch 'master' of git://git./linux/kernel/git/jk/spufs into merge
Chidambar 'ilLogict' Zinnoury [Wed, 12 Mar 2008 01:05:02 +0000 (18:05 -0700)]
[SCTP]: Fix local_addr deletions during list traversals.
Since the lists are circular, we need to explicitely tag
the address to be deleted since we might end up freeing
the list head instead. This fixes some interesting SCTP
crashes.
Signed-off-by: Chidambar 'ilLogict' Zinnoury <illogict@online.fr>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Morton [Wed, 12 Mar 2008 01:03:35 +0000 (18:03 -0700)]
net: fix build with CONFIG_NET=n
fs/built-in.o:(.rodata+0x1134): undefined reference to `proc_net_inode_operations'
fs/built-in.o:(.rodata+0x1138): undefined reference to `proc_net_operations'
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Wed, 12 Mar 2008 00:55:27 +0000 (17:55 -0700)]
[TCP]: Prevent sending past receiver window with TSO (at last skb)
With TSO it was possible to send past the receiver window when the skb
to be sent was the last in the write queue while the receiver window
is the limiting factor. One can notice that there's a loophole in the
tcp_mss_split_point that lacked a receiver window check for the
tcp_write_queue_tail() if also cwnd was smaller than the full skb.
Noticed by Thomas Gleixner <tglx@linutronix.de> in form of "Treason
uncloaked! Peer ... shrinks window .... Repaired." messages (the peer
didn't actually shrink its window as the message suggests, we had just
sent something past it without a permission to do so).
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Tested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivo van Doorn [Sun, 9 Mar 2008 21:42:32 +0000 (22:42 +0100)]
rt2x00: Add new D-Link USB ID
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Adam Baker [Sun, 9 Mar 2008 21:40:40 +0000 (22:40 +0100)]
rt2x00: never disable multicast because it disables broadcast too
On rt73 and rt61 disabling reception of multicast packets also disables
broadcast traffic which we never want to do. Therefore we should never
disable multicast.
Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sebastian Siewior [Thu, 6 Mar 2008 09:30:21 +0000 (10:30 +0100)]
libertas: fix the 'compare command with itself' properly
|libertas: Invalid CMD_RESP 8012 to command 50!
The special case got mixed up in
8a96df80b3.
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Thu, 6 Mar 2008 18:08:09 +0000 (13:08 -0500)]
drivers/net/Kconfig: fix whitespace for GELIC_WIRELESS entry
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Linus Torvalds [Tue, 11 Mar 2008 16:47:28 +0000 (09:47 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/x86/linux-2.6-x86
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
x86: remove quicklists
x86: ia32 syscall restart fix
x86: ioremap, remove WARN_ON()
Linus Torvalds [Tue, 11 Mar 2008 16:18:56 +0000 (09:18 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mingo/linux-2.6-sched-devel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel:
keep rd->online and cpu_online_map in sync
Revert "cpu hotplug: adjust root-domain->online span in response to hotplug event"
Linus Torvalds [Tue, 11 Mar 2008 16:14:34 +0000 (09:14 -0700)]
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:
RDMA/iwcm: Don't access a cm_id after dropping reference
IB/iser: Handle iser_device allocation error gracefully
IB/iser: Fix list iteration bug
RDMA/cxgb3: Fix iwch_create_cq() off-by-one error
RDMA/cxgb3: Return correct max_inline_data when creating a QP
IB/fmr_pool: Flush all dirty FMRs from ib_fmr_pool_flush()
Revert "IB/fmr_pool: ib_fmr_pool_flush() should flush all dirty FMRs"
IB/cm: Flush workqueue when removing device
MAINTAINERS: update ipath owner
Thomas Gleixner [Sun, 9 Mar 2008 12:14:37 +0000 (13:14 +0100)]
x86: remove quicklists
quicklists cause a serious memory leak on 32-bit x86,
as documented at:
http://bugzilla.kernel.org/show_bug.cgi?id=9991
the reason is that the quicklist pool is a special-purpose
cache that grows out of proportion. It is not accounted for
anywhere and users have no way to even realize that it's
the quicklists that are causing RAM usage spikes. It was
supposed to be a relatively small pool, but as demonstrated
by KOSAKI Motohiro, they can grow as large as:
Quicklists:
1194304 kB
given how much trouble this code has caused historically,
and given that Andrew objected to its introduction on x86
(years ago), the best option at this point is to remove them.
[ any performance benefits of caching constructed pgds should
be implemented in a more generic way (possibly within the page
allocator), while still allowing constructed pages to be
allocated by other workloads. ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Roland McGrath [Fri, 29 Feb 2008 03:57:07 +0000 (19:57 -0800)]
x86: ia32 syscall restart fix
The code to restart syscalls after signals depends on checking for a
negative orig_ax, and for particular negative -ERESTART* values in ax.
These fields are 64 bits and for a 32-bit task they get zero-extended.
The syscall restart behavior is lost, a regression from a native 32-bit
kernel and from 64-bit tasks' behavior.
This patch fixes the problem by doing sign-extension where it matters.
For orig_ax, the only time the value should be -1 but winds up as
0x0ffffffff is via a 32-bit ptrace call. So the patch changes ptrace to
sign-extend the 32-bit orig_eax value when it's stored; it doesn't
change the checks on orig_ax, though it uses the new current_syscall()
inline to better document the subtle importance of the used of
signedness there.
The ax value is stored a lot of ways and it seems hard to get them all
sign-extended at their origins. So for that, we use the
current_syscall_ret() to sign-extend it only for 32-bit tasks at the
time of the -ERESTART* comparisons.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Tue, 26 Feb 2008 08:30:32 +0000 (09:30 +0100)]
x86: ioremap, remove WARN_ON()
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Gregory Haskins [Mon, 10 Mar 2008 21:59:11 +0000 (17:59 -0400)]
keep rd->online and cpu_online_map in sync
It is possible to allow the root-domain cache of online cpus to
become out of sync with the global cpu_online_map. This is because we
currently trigger removal of cpus too early in the notifier chain.
Other DOWN_PREPARE handlers may in fact run and reconfigure the
root-domain topology, thereby stomping on our own offline handling.
The end result is that rd->online may become out of sync with
cpu_online_map, which results in potential task misrouting.
So change the offline handling to be more tightly coupled with the
global offline process by triggering on CPU_DYING intead of
CPU_DOWN_PREPARE.
Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Gregory Haskins [Mon, 10 Mar 2008 20:52:41 +0000 (16:52 -0400)]
Revert "cpu hotplug: adjust root-domain->online span in response to hotplug event"
This reverts commit
393d94d98b19089ec172566e23557997931b137e.
Lets fix this right.
Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Steve Wise [Tue, 4 Mar 2008 22:44:52 +0000 (16:44 -0600)]
RDMA/iwcm: Don't access a cm_id after dropping reference
cm_work_handler() can access cm_id_priv after it drops its reference
by calling iwch_deref_id(), which might cause it to be freed. The fix
is to look at whether IWCM_F_CALLBACK_DESTROY is set _before_ dropping
the reference. Then if it was set, free the cm_id on this thread.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Arne Redlich [Tue, 4 Mar 2008 12:11:54 +0000 (14:11 +0200)]
IB/iser: Handle iser_device allocation error gracefully
"iser_device" allocation failure is "handled" with a BUG_ON() right
before dereferencing the NULL-pointer - fix this!
Signed-off-by: Arne Redlich <arne.redlich@xiranet.com>
Signed-off-by: Erez Zilber <erezz@voltaire.com>
Arne Redlich [Tue, 4 Mar 2008 12:07:22 +0000 (14:07 +0200)]
IB/iser: Fix list iteration bug
The iteration through the list of "iser_device"s during device
lookup/creation is broken -- it might result in an infinite loop if
more than one HCA is used with iSER. Fix this by using
list_for_each_entry() instead of the open-coded flawed list iteration
code.
Signed-off-by: Arne Redlich <arne.redlich@xiranet.com>
Signed-off-by: Erez Zilber <erezz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Jeremy Kerr [Tue, 11 Mar 2008 01:46:18 +0000 (12:46 +1100)]
[POWERPC] spufs: fix rescheduling of non-runnable contexts
At present, we can hit the BUG_ON in __spu_update_sched_info by reading
the regs file of a context between two calls to spu_run. The
spu_release_saved called by spufs_regs_read() is resulting in the (now
non-runnable) context being placed back on the run queue, so the next
call to spu_run ends up in the bug condition.
This change uses the SPU_SCHED_SPU_RUN flag to only reschedule a context
if it's still in spu_run().
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Linus Torvalds [Tue, 11 Mar 2008 01:45:51 +0000 (18:45 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[libata] Add support for the RB500 PATA CompactFlash
ahci: logical-bitwise and confusion in ahci_save_initial_config()
libata: don't allow sysfs read access to force param
ahci: add the Device IDs for nvidia MCP7B AHCI
libata-sff: handle controllers w/o ctl register
libata: allow LLDs w/o any reset method
ata: replace remaining __FUNCTION__ occurrences
Linus Torvalds [Tue, 11 Mar 2008 01:45:23 +0000 (18:45 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB:Update mailing list information in documentation
USB: fix ehci unlink regressions
USB: new ftdi_sio device id
USB: Remove __KERNEL__ check from non-exported gadget.h.
USB: g_printer.h does not need to be "unifdef"ed.
USB: fsl_usb2_udc: fix broken Kconfig
USB: option: add novatel device ids
USB: usbaudio: handle kcalloc failure
USB: cypress_m8: add UPS Powercom (0d9f:0002)
USB: drivers/usb/storage/sddr55.c: fix uninitialized var warnings
USB: fix usb-serial generic recursive lock
Jeremy Kerr [Tue, 4 Mar 2008 09:17:02 +0000 (20:17 +1100)]
[POWERPC] spufs: don't (ab)use SCHED_IDLE
commit
4ef11014 introduced a usage of SCHED_IDLE to detect when
a context is within spu_run.
Instead of SCHED_IDLE (which has other meaning), add a flag to
sched_flags to tell if a context should be running.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Ingo Molnar [Mon, 10 Mar 2008 17:04:34 +0000 (18:04 +0100)]
fix BIOS PCI config cycle buglet causing ACPI boot regression
I figured out another ACPI related regression today.
randconfig testing triggered an early boot-time hang on a laptop of mine
(32-bit x86, config attached) - the screen was scrolling ACPI AML
exceptions [with no serial port and no early debugging available].
v2.6.24 works fine on that laptop with the same .config, so after a few
hours of bisection (had to restart it 3 times - other regressions
interacted), it honed in on this commit:
|
10270d4838bdc493781f5a1cf2e90e9c34c9142f is first bad commit
|
| Author: Linus Torvalds <torvalds@woody.linux-foundation.org>
| Date: Wed Feb 13 09:56:14 2008 -0800
|
| acpi: fix acpi_os_read_pci_configuration() misuse of raw_pci_read()
reverting this commit ontop of -rc5 gave a correctly booting kernel.
But this commit fixes a real bug so the real question is, why did it
break the bootup?
After quite some head-scratching, the following change stood out:
- pci_id->bus = tu8;
+ pci_id->bus = val;
pci_id->bus is defined as u16:
struct acpi_pci_id {
u16 segment;
u16 bus;
...
and 'tu8' changed from u8 to u32. So previously we'd unconditionally
mask the return value of acpi_os_read_pci_configuration()
(raw_pci_read()) to 8 bits, but now we just trust whatever comes back
from the PCI access routines and only crop it to 16 bits.
But if the high 8 bits of that result contains any noise then we'll
write that into ACPI's PCI ID descriptor and confuse the heck out of the
rest of ACPI.
So lets check the PCI-BIOS code on that theory. We have this codepath
for 8-bit accesses (arch/x86/pci/pcbios.c:pci_bios_read()):
switch (len) {
case 1:
__asm__("lcall *(%%esi); cld\n\t"
"jc 1f\n\t"
"xor %%ah, %%ah\n"
"1:"
: "=c" (*value),
"=a" (result)
: "1" (PCIBIOS_READ_CONFIG_BYTE),
"b" (bx),
"D" ((long)reg),
"S" (&pci_indirect));
Aha! The "=a" output constraint puts the full 32 bits of EAX into
*value. But if the BIOS's routines set any of the high bits to nonzero,
we'll return a value with more set in it than intended.
The other, more common PCI access methods (v1 and v2 PCI reads) clear
out the high bits already, for example pci_conf1_read() does:
switch (len) {
case 1:
*value = inb(0xCFC + (reg & 3));
which explicitly converts the return byte up to 32 bits and zero-extends
it.
So zero-extending the result in the PCI-BIOS read routine fixes the
regression on my laptop. ( It might fix some other long-standing issues
we had with PCI-BIOS during the past decade ... ) Both 8-bit and 16-bit
accesses were buggy.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 11 Mar 2008 01:05:47 +0000 (18:05 -0700)]
Merge git://git./linux/kernel/git/gregkh/pci-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6:
PCI Hotplug: Fix small mem leak in IBM Hot Plug Controller Driver
PCI: rename DECLARE_PCI_DEVICE_TABLE to DEFINE_PCI_DEVICE_TABLE
Linus Torvalds [Tue, 11 Mar 2008 01:04:00 +0000 (18:04 -0700)]
Merge git://git./linux/kernel/git/gregkh/driver-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
drivers: fix dma_get_required_mask
firmware: provide stubs for the FW_LOADER=n case
nozomi: fix initialization and early flow control access
sysdev: fix problem with sysdev_class being re-registered
Linus Torvalds [Tue, 11 Mar 2008 01:03:20 +0000 (18:03 -0700)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest: Do not append space to guests kernel command line
lguest: Revert
1ce70c4fac3c3954bd48c035f448793867592bc0, fix real problem.
lguest: Sanitize the lguest clock.
lguest: fix __get_vm_area usage.
lguest: make sure cpu is initialized before accessing it
Linus Torvalds [Tue, 11 Mar 2008 01:02:59 +0000 (18:02 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
ocfs2: Fix NULL pointer dereferences in o2net
ocfs2/dlm: dlm_thread should not sleep while holding the dlm_spinlock
ocfs2/dlm: Print message showing the recovery master
ocfs2/dlm: Add missing dlm_lockres_put()s
ocfs2/dlm: Add missing dlm_lockres_put()s in migration path
ocfs2/dlm: Add missing dlm_lock_put()s
ocfs2: Fix an endian bug in online resize.
[PATCH] [OCFS2]: constify function pointer tables
ocfs2: Fix endian bug in o2dlm protocol negotiation.
ocfs2: Use dlm_print_one_lock_resource for lock resource print
[PATCH] fs/ocfs2/dlm/dlmdomain.c: fix printk warning
Linus Torvalds [Tue, 11 Mar 2008 01:02:16 +0000 (18:02 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] make watchdog/hpwdt.c:asminline_call() static
[WATCHDOG] Remove volatiles from watchdog device structures
[WATCHDOG] replace remaining __FUNCTION__ occurrences
[WATCHDOG] hpwdt: Use dmi_walk() instead of own copy
[WATCHDOG] Fix return value warning in hpwdt
[WATCHDOG] Fix declaration of struct smbios_entry_point in hpwdt
[WATCHDOG] it8712f_wdt support for 16-bit timeout values, WDIOC_GETSTATUS
Michael Hennerich [Mon, 10 Mar 2008 18:44:04 +0000 (11:44 -0700)]
fbdev: add BF52x EZkit Display driver
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Hennerich [Mon, 10 Mar 2008 18:44:03 +0000 (11:44 -0700)]
BF54x LQ043 Framebuffer driver: Update copyright on previously modified files
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.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>
Bryan Wu [Mon, 10 Mar 2008 18:44:03 +0000 (11:44 -0700)]
BF54x LQ043 Framebuffer driver: fix bug lcd_device_register API breakage
Signed-off-by: Bryan Wu <bryan.wu@analog.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>
Michael Hennerich [Mon, 10 Mar 2008 18:44:02 +0000 (11:44 -0700)]
BF54x LQ043 Framebuffer driver: fix bug NULL for gpio_request label is not allowed
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.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>
Helge Deller [Mon, 10 Mar 2008 18:44:01 +0000 (11:44 -0700)]
stifb: fix crash A1439A CRX (Rattler) graphics card
Fix kernel crash when stifb driver is used with a A1439A CRX (Rattler)
graphics card. (Reference:
http://thread.gmane.org/gmane.linux.ports.hppa/1834)
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Mon, 10 Mar 2008 18:44:00 +0000 (11:44 -0700)]
mbxfb: fix incorrect argument type
Fix wrong pointer type passed into the dev_dbg() function.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: Mike Rapoport <mike@compulab.co.il>
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>
Nick Piggin [Mon, 10 Mar 2008 18:43:59 +0000 (11:43 -0700)]
iov_iter_advance() fix
iov_iter_advance() skips over zero-length iovecs, however it does not properly
terminate at the end of the iovec array. Fix this by checking against
i->count before we skip a zero-length iov.
The bug was reproduced with a test program that continually randomly creates
iovs to writev. The fix was also verified with the same program and also it
could verify that the correct data was contained in the file after each
writev.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Tested-by: "Kevin Coffman" <kwc@citi.umich.edu>
Cc: "Alexey Dobriyan" <adobriyan@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul E. McKenney [Mon, 10 Mar 2008 18:43:57 +0000 (11:43 -0700)]
rcu: move PREEMPT_RCU config option back under PREEMPT
The original preemptible-RCU patch put the choice between classic and
preemptible RCU into kernel/Kconfig.preempt, which resulted in build failures
on machines not supporting CONFIG_PREEMPT. This choice was therefore moved to
init/Kconfig, which worked, but placed the choice between classic and
preemptible RCU at the top level, a very obtuse choice indeed.
This patch changes from the Kconfig "choice" mechanism to a pair of booleans,
only one of which (CONFIG_PREEMPT_RCU) is user-visible, and is located in
kernel/Kconfig.preempt, where one would expect it to be. The other
(CONFIG_CLASSIC_RCU) is in init/Kconfig so that it is available to all
architectures, hopefully avoiding build breakage. Thanks to Roman Zippel for
suggesting this approach.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Dipankar Sarma <dipankar@in.ibm.com>
Cc: Josh Triplett <josh@freedesktop.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Thomas Bogendoerfer [Mon, 10 Mar 2008 18:43:54 +0000 (11:43 -0700)]
i8042: use SGI_HAS_I8042 to select SGI i8042 handlinig
Use SGI_HAS_I8042 to select SGI i8042 handling
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / log