Benjamin Herrenschmidt [Thu, 18 Dec 2008 19:13:32 +0000 (19:13 +0000)]
powerpc/mm: Introduce MMU features
We're soon running out of CPU features and I need to add some new
ones for various MMU related bits, so this patch separates the MMU
features from the CPU features. I moved over the 32-bit MMU related
ones, added base features for MMU type families, but didn't move
over any 64-bit only feature yet.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Thu, 18 Dec 2008 19:13:29 +0000 (19:13 +0000)]
powerpc/mm: Rework context management for CPUs with no hash table
This reworks the context management code used by 4xx,8xx and
freescale BookE. It adds support for SMP by implementing a
concept of stale context map to lazily flush the TLB on
processors where a context may have been invalidated. This
also contains the ground work for generalizing such lazy TLB
flushing by just picking up a new PID and marking the old one
stale. This will be implemented later.
This is a first implementation that uses a global spinlock.
Ideally, we should try to get at least the fast path (context ID
already assigned) lockless or limited to a per context lock,
but for now this will do.
I tried to keep the UP case reasonably simple to avoid adding
too much overhead to 8xx which does a lot of context stealing
since it effectively has only 16 PIDs available.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Thu, 18 Dec 2008 19:13:24 +0000 (19:13 +0000)]
powerpc/mm: Split mmu_context handling
This splits the mmu_context handling between 32-bit hash based
processors, 64-bit hash based processors and everybody else. This is
preliminary work for adding SMP support for BookE processors.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Thu, 18 Dec 2008 19:13:22 +0000 (19:13 +0000)]
powerpc/4xx: Extended DCR support v2
This adds supports to the "extended" DCR addressing via the indirect
mfdcrx/mtdcrx instructions supported by some 4xx cores (440H6 and
later).
I enabled the feature for now only on AMCC 460 chips.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Brian King [Thu, 18 Dec 2008 11:13:49 +0000 (11:13 +0000)]
powerpc: Add reboot notifier to Collaborative Memory Manager
When running Active Memory Sharing, pages can get marked as
"loaned" with the hypervisor by the CMM driver. This state gets
cleared by the system firmware when rebooting the partition.
When using kexec to boot a new kernel, this state never gets
cleared and the hypervisor and CMM driver can get out of sync
with respect to the number of pages currently marked "loaned".
Fix this by adding a reboot notifier to the CMM driver to deflate
the balloon and mark all pages as active.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Brian King [Thu, 18 Dec 2008 11:13:46 +0000 (11:13 +0000)]
powerpc: Disable Collaborative Memory Manager for kdump
When running Active Memory Sharing, the Collaborative Memory Manager
(CMM) may mark some pages as "loaned" with the hypervisor.
Periodically, the CMM will query the hypervisor for a loan request,
which is a single signed value. When kexec'ing into a kdump kernel,
the CMM driver in the kdump kernel is not aware of the pages the
previous kernel had marked as "loaned", so the hypervisor and the CMM
driver are out of sync. This results in the CMM driver getting a
negative loan request, which can then get treated as a large unsigned
value and can cause kdump to hang due to the CMM driver inflating too
large. Since there really is no clean way for the CMM driver in the
kdump kernel to clean this up, simply disable CMM in the kdump kernel.
This fixes hangs we were seeing doing kdump with AMS.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Stephen Rothwell [Tue, 16 Dec 2008 20:16:49 +0000 (20:16 +0000)]
powerpc/iseries: viodasd needs to depend on CONFIG_BLOCK
Otherwise you get lot of errors like these:
drivers/block/viodasd.c:72: error: dereferencing pointer to incomplete type
drivers/block/viodasd.c: In function 'viodasd_open':
drivers/block/viodasd.c:135: error: dereferencing pointer to incomplete type
drivers/block/viodasd.c: In function 'viodasd_release':
drivers/block/viodasd.c:184: error: dereferencing pointer to incomplete type
drivers/block/viodasd.c: In function 'viodasd_getgeo':
drivers/block/viodasd.c:209: error: dereferencing pointer to incomplete type
drivers/block/viodasd.c:214: error: implicit declaration of function 'get_capacity'
drivers/block/viodasd.c: At top level:
drivers/block/viodasd.c:222: error: variable 'viodasd_fops' has initializer but incomplete type
drivers/block/viodasd.c:223: error: unknown field 'owner' specified in initializer
Discovered by a randconfig build.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Hendrik Brueckner [Tue, 16 Dec 2008 00:09:38 +0000 (00:09 +0000)]
hvc_console: Escape magic sysrq key
The ctrl-o (^O) is a common control key used by several applications,
such as vim, but hvc_console uses ^O as the magic-sysrq key. This
commit allows users to send ^O to applications by pressing ^O twice
in succession.
To implement this, this commit introduces a check if ^O is pressed
again if the sysrq_pressed variable is already set. In this case,
clear sysrq_pressed state and flip the ^O character to the tty. (The
old behavior has always set "sysrq_pressed" if ^O has been entered,
and it has not flipped the ^O character to the tty.)
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tony Breeds [Mon, 15 Dec 2008 18:34:43 +0000 (18:34 +0000)]
powerpc: Pass a valid token to rtas_call() in phyp-dump code
ibm_configure_kernel_dump is passed as the token to rtas_call() is
never initialised. This sets it to something sane.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Acked-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Manish Ahuja <mahujam@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tony Breeds [Mon, 15 Dec 2008 18:17:48 +0000 (18:17 +0000)]
powerpc: Protect against NULL pointer deref in phyp-dump code
print_dump_header() will be called at least once with a NULL pointer in
a normal boot sequence. If DEBUG is defined then we will dereference
the pointer and crash. Add a quick fix to exit early in the NULL pointer
case.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Acked-by: Manish Ahuja <mahujam@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
David Howells [Thu, 11 Dec 2008 02:53:54 +0000 (02:53 +0000)]
powerpc: Rename struct vm_region to avoid conflict with NOMMU
Rename PowerPC's struct vm_region so that I can introduce my own
global version for NOMMU. It's feasible that the PowerPC version may
wish to use my global one instead.
The NOMMU vm_region struct defines areas of the physical memory map
that are under mmap. This may include chunks of RAM or regions of
memory mapped devices, such as flash. It is also used to retain
copies of file content so that shareable private memory mappings of
files can be made. As such, it may be compatible with what is
described in the banner comment for PowerPC's vm_region struct.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Wed, 10 Dec 2008 14:46:06 +0000 (14:46 +0000)]
powerpc: Convert sysfs cache code to of_find_next_cache_node()
Using the common code means that more complete cache information will
provided in sysfs on platforms that don't use the l2-cache property
convention.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Wed, 10 Dec 2008 20:16:07 +0000 (20:16 +0000)]
powerpc: Convert cpu_to_l2cache() to of_find_next_cache_node()
The smp code uses cache information to populate cpu_core_map; change
it to use common code for cache lookup.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Wed, 10 Dec 2008 14:46:04 +0000 (14:46 +0000)]
powerpc: Add of_find_next_cache_node()
We have more than one piece of code that looks up cache nodes manually
using the "l2-cache" property. Add a common helper routine which does
this and handles ePAPR's "next-level-cache" property as well as
powermac.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Vorontsov [Fri, 5 Dec 2008 08:15:54 +0000 (08:15 +0000)]
of/gpio: Implement of_gpio_count()
This function is used to count how many GPIOs are specified for
a device node.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Vorontsov [Fri, 5 Dec 2008 08:15:46 +0000 (08:15 +0000)]
of: of_parse_phandles_with_args() learns to differentiate 'hole' cells
Given this list (contains three gpio specifiers, one of which is a hole):
gpios = <&phandle1 1 2 3
0 /* a hole */
&phandle2 4 5 6>;
of_parse_phandles_with_args() would report -ENOENT for the `hole'
specifier item, the same error value is used to report the end of the
list, for example.
Sometimes we want to differentiate holes from real errors -- for
example when we want to count all the [syntax correct] specifiers.
With this patch of_parse_phandles_with_args() will report -EEXITS when
somebody requested to parse a hole.
Also, make the out_{node,args} arguments optional, when counting we
don't really need the out values.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Vorontsov [Fri, 5 Dec 2008 08:15:39 +0000 (08:15 +0000)]
of: Minor simplification for the of_parse_phandles_with_args()
By using 'list++' in the beginning we can simplify the code a
little bit.
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 18 Dec 2008 00:06:12 +0000 (11:06 +1100)]
Merge branch 'linux-2.6' into next
Linus Torvalds [Wed, 17 Dec 2008 23:05:26 +0000 (15:05 -0800)]
Merge branch 'i2c-fixes' of git://aeryn.fluff.org.uk/bjdooks/linux
* 'i2c-fixes' of git://aeryn.fluff.org.uk/bjdooks/linux:
i2c-s3c2410: fix check for being in suspend.
i2c-cpm: Detect and report NAK right away instead of timing out
Linus Torvalds [Wed, 17 Dec 2008 23:01:23 +0000 (15:01 -0800)]
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: Add JBD2 compat feature bit.
ocfs2: Always update xattr search when creating bucket.
Linus Torvalds [Wed, 17 Dec 2008 23:01:06 +0000 (15:01 -0800)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: pl2303: add id for Hewlett-Packard LD220-HP POS pole display
USB: set correct configuration in probe of ti_usb_3410_5052
USB: add 5372:2303 to pl2303
USB: skip Set-Interface(0) if already in altsetting 0
USB: fix comment about endianness of descriptors
USB: Documentation/usb/gadget_serial.txt: update to match driver use_acm behaviour
usbmon: drop bogus 0t from usbmon.txt
USB: gadget: fix rndis working at high speed
USB: ftdi_sio: Adding Ewert Energy System's CANdapter PID
USB: tty: SprogII DCC controller identifiers
usb-storage: update unusual_devs entry for Nokia 5310
USB: Unusual devs patch for Nokia 3500c
USB: storage: unusual_devs.h: Nokia 3109c addition
USB: fix problem with usbtmc driver not loading properly
Linus Torvalds [Wed, 17 Dec 2008 23:00:54 +0000 (15:00 -0800)]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
STAGING: Move staging drivers back to staging-specific menu
driver core: add newlines to debugging enabled/disabled messages
xilinx_hwicap: remove improper wording in license statement
driver core: fix using 'ret' variable in unregister_dynamic_debug_module
Jeff Layton [Wed, 17 Dec 2008 11:31:53 +0000 (06:31 -0500)]
cifs: fix buffer overrun in parse_DFS_referrals
While testing a kernel with memory poisoning enabled, I saw some warnings
about the redzone getting clobbered when chasing DFS referrals. The
buffer allocation for the unicode converted version of the searchName is
too small and needs to take null termination into account.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 17 Dec 2008 22:58:56 +0000 (14:58 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/galak/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc:
powerpc: Fix corruption error in rh_alloc_fixed()
powerpc/fsl-booke: Fix the miss interrupt restore
Dmitry Baryshkov [Thu, 27 Nov 2008 21:01:28 +0000 (00:01 +0300)]
STAGING: Move staging drivers back to staging-specific menu
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Marcel Holtmann [Sun, 30 Nov 2008 13:01:26 +0000 (14:01 +0100)]
driver core: add newlines to debugging enabled/disabled messages
Both messages are missing the newline and thus dmesg output gets
scrambled.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Sun, 7 Dec 2008 05:10:51 +0000 (21:10 -0800)]
xilinx_hwicap: remove improper wording in license statement
GPLv2 doesn't allow additional restrictions to be imposed on any
code, so this wording needs to be removed from these files.
Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johann Felix Soden [Thu, 30 Oct 2008 21:44:39 +0000 (22:44 +0100)]
driver core: fix using 'ret' variable in unregister_dynamic_debug_module
The 'ret' variable is assigned, but not used in the return statement. Fix this.
Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Acked-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Provencher [Tue, 16 Dec 2008 20:30:14 +0000 (14:30 -0600)]
USB: pl2303: add id for Hewlett-Packard LD220-HP POS pole display
Add id for the Hewlett-Packard LD220-HP POS pole display.
Bus 002 Device 002: ID 03f0:3524 Hewlett-Packard
Signed-off-by: Mike Provencher <mike.provencher@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Tue, 16 Dec 2008 11:25:55 +0000 (12:25 +0100)]
USB: set correct configuration in probe of ti_usb_3410_5052
This driver transfers firmware. It may just as well set the correct
configuration.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Matthew Arnold [Sat, 13 Dec 2008 11:42:53 +0000 (22:42 +1100)]
USB: add 5372:2303 to pl2303
This patch adds the "Superial" USB-Serial converter to pl2303 so that it
is detected, by the correct driver. Adds the relevant vendor:product
(5372:2303) to the device tables in pl2303.c & pl2303.h. The patch has
been tested against 2.6.24-22-generic.
Signed-off-by: Matthew D Arnold <matthew.arnold-1@uts.edu.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Mon, 1 Dec 2008 15:24:41 +0000 (10:24 -0500)]
USB: skip Set-Interface(0) if already in altsetting 0
When a driver unbinds from an interface, usbcore always sends a
Set-Interface request to reinstall altsetting 0. Unforunately, quite
a few devices have buggy firmware that crashes when it receives this
request.
To avoid such problems, this patch (as1180) arranges to send the
Set-Interface request only when the interface is not already in
altsetting 0.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Phil Endecott [Mon, 1 Dec 2008 15:22:33 +0000 (10:22 -0500)]
USB: fix comment about endianness of descriptors
This patch fixes a comment and clarifies the documentation about the
endianness of descriptors. The current policy is that descriptors will
be little-endian at the API even on big-endian systems; however the
/proc/bus/usb API predates this policy and presents descriptors with
some multibyte fields byte-swapped.
Signed-off-by: Phil Endecott <usb_endian_patch@chezphil.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Peter Korsgaard [Thu, 4 Dec 2008 15:30:53 +0000 (16:30 +0100)]
USB: Documentation/usb/gadget_serial.txt: update to match driver use_acm behaviour
Commit
7bb5ea54 (usb gadget serial: use composite gadget framework)
changed the default for the use_acm parameter from 0 to 1.
Update the documentation to match.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcev [Thu, 4 Dec 2008 23:17:00 +0000 (16:17 -0700)]
usbmon: drop bogus 0t from usbmon.txt
The example is incorrect: there is no 0t socket (the '1t' format has no
bus number in it). Also, correct the broken sentence for USB Tag.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Tue, 25 Nov 2008 07:11:03 +0000 (23:11 -0800)]
USB: gadget: fix rndis working at high speed
Fix a bug specific to highspeed mode in the recently updated RNDIS
support: it wasn't setting up the high speed notification endpoint,
which prevented high speed RNDIS links from working.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Tested-by: Anand Gadiyar <gadiyar@ti.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andrew Ewert [Thu, 4 Dec 2008 15:09:59 +0000 (09:09 -0600)]
USB: ftdi_sio: Adding Ewert Energy System's CANdapter PID
The following patch adds in the USB PID for Ewert Energy System's CANdapter
device (CANBUS to USB-Serial which uses the FTDI 245R chipset) to the ftdi_sio
device driver.
The patch was tested successfully on Linux kernel 2.6.27 under Ubuntu.
Relevant output from /proc/bus/usb/devices (With patch installed):
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0403 ProdID=9f80 Rev= 6.00
S: Manufacturer=Ewert Energy Systems
S: Product=CANdapter
S: SerialNumber=A6RGB3Z3
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 90mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=ftdi_sio
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
Signed-off-by: Andrew Ewert <andrew@ewertenergy.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Sun, 7 Dec 2008 07:46:04 +0000 (23:46 -0800)]
USB: tty: SprogII DCC controller identifiers
Someone on rmweb reminded me this had been overlooked from ages ago..
Add the identifiers for the Sprog II USB. This is a DCC control interface
using the FTDI-SIO hardware: http://www.sprog-dcc.co.uk/. People have been
using it with insmod options for ages, this just puts it into the driver
data.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Mon, 1 Dec 2008 15:23:43 +0000 (10:23 -0500)]
usb-storage: update unusual_devs entry for Nokia 5310
This patch (as1179) updates the unusual_devs entry for Nokia's 5310
phone to include a more recent firmware revision.
This fixes Bugzilla #12099.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Robson Roberto Souza Peixoto <robsonpeixoto@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ozan Sener [Mon, 8 Dec 2008 17:15:45 +0000 (19:15 +0200)]
USB: Unusual devs patch for Nokia 3500c
T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0421 ProdID=0060 Rev= 5.51
S: Manufacturer=Nokia
S: Product=Nokia 3500c
S: SerialNumber=
357687010280751
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
From: Ozan Sener <themgzzy@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
CSÉCSY László [Tue, 9 Dec 2008 22:39:14 +0000 (23:39 +0100)]
USB: storage: unusual_devs.h: Nokia 3109c addition
2.6.26(.x, cannot remember) could handle the microSD card in my Nokia
3109c attached via USB as mass storage, 2.6.27(.x, up to and included
2.6.27.8) cannot. Please find the attached patch which fixes this
regression, and a copy of /proc/bus/usb/devices with my phone plugged in
running with this patch on Frugalware.
T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0421 ProdID=0063 Rev= 6.01
S: Manufacturer=Nokia
S: Product=Nokia 3109c
S: SerialNumber=
359561013742570
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
From: CSÉCSY László <boobaa@frugalware.org>
Cc: Phil Dibowitz <phil@ipom.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Thu, 4 Dec 2008 00:33:09 +0000 (16:33 -0800)]
USB: fix problem with usbtmc driver not loading properly
The usbtmc driver forgot to export its device table to userspace.
Without this, it is never loaded properly when such a device is seen by
the system.
Cc: Marcel Janssen <marcel.janssen@admesy.nl>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Guillaume Knispel [Tue, 9 Dec 2008 14:28:34 +0000 (15:28 +0100)]
powerpc: Fix corruption error in rh_alloc_fixed()
There is an error in rh_alloc_fixed() of the Remote Heap code:
If there is at least one free block blk won't be NULL at the end of the
search loop, so -ENOMEM won't be returned and the else branch of
"if (bs == s || be == e)" will be taken, corrupting the management
structures.
Signed-off-by: Guillaume Knispel <gknispel@proformatique.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Dave Liu [Wed, 17 Dec 2008 10:24:15 +0000 (18:24 +0800)]
powerpc/fsl-booke: Fix the miss interrupt restore
The commit
e5e774d8833de1a0037be2384efccadf16935675
powerpc/fsl-booke: Fix problem with _tlbil_va being interrupted
introduce one issue. that casue the problem like this:
Kernel BUG at
c00b19fc [verbose debug info unavailable]
Oops: Exception in kernel mode, sig: 5 [#1]
MPC8572 DS
Modules linked in:
NIP:
c00b19fc LR:
c00b1c34 CTR:
c0064e88
REGS:
ef02b7b0 TRAP: 0700 Not tainted (
2.6.28-rc8-00057-g1bda712)
MSR:
00021000 <ME> CR:
44048028 XER:
20000000
TASK =
ef02c000[1] 'init' THREAD:
ef02a000
GPR00:
00000001 ef02b860 ef02c000 eec201a0 c0dec2c0 00000000 000078a1 00000400
GPR08:
c00b4e40 000078a1 c048ec00 a1780000 44048028 ecd26917 00000001 ef02b948
GPR16:
ffffffea 0000020c 00000000 00000000 00000003 0000000a 00000000 000078a1
GPR24:
eec201a0 00000000 ed849000 00000400 ef02b95c 00000001 ef02b978 ef02b984
NIP [
c00b19fc] __find_get_block+0x24/0x238
LR [
c00b1c34] __getblk+0x24/0x2a0
Call Trace:
[
ef02b860] [
c017b768] generic_make_request+0x290/0x328 (unreliable)
[
ef02b8b0] [
c00b1c34] __getblk+0x24/0x2a0
[
ef02b910] [
c00b4ae4] __bread+0x14/0xf8
[
ef02b920] [
c00fc228] ext2_get_branch+0xf0/0x138
[
ef02b940] [
c00fcc88] ext2_get_block+0xb8/0x828
[
ef02ba00] [
c00bbdc8] do_mpage_readpage+0x188/0x808
[
ef02bac0] [
c00bc5b4] mpage_readpages+0xec/0x144
[
ef02bb50] [
c00fba38] ext2_readpages+0x24/0x34
[
ef02bb60] [
c006ade0] __do_page_cache_readahead+0x150/0x230
[
ef02bbb0] [
c0064bdc] filemap_fault+0x31c/0x3e0
[
ef02bbf0] [
c00728b8] __do_fault+0x60/0x5b0
[
ef02bc50] [
c0011e0c] do_page_fault+0x2d8/0x4c4
[
ef02bd10] [
c000ed90] handle_page_fault+0xc/0x80
[
ef02bdd0] [
c00c7adc] set_brk+0x74/0x9c
[
ef02bdf0] [
c00c9274] load_elf_binary+0x70c/0x1180
[
ef02be70] [
c00945f0] search_binary_handler+0xa8/0x274
[
ef02bea0] [
c0095818] do_execve+0x19c/0x1d4
[
ef02bed0] [
c000766c] sys_execve+0x58/0x84
[
ef02bef0] [
c000e950] ret_from_syscall+0x0/0x3c
[
ef02bfb0] [
c009c6fc] sys_dup+0x24/0x6c
[
ef02bfc0] [
c0001e04] init_post+0xb0/0xf0
[
ef02bfd0] [
c046c1ac] kernel_init+0xcc/0xf4
[
ef02bff0] [
c000e6d0] kernel_thread+0x4c/0x68
Instruction dump:
4bffffa4 813f000c 4bffffac 9421ffb0 7c0802a6 7d800026 90010054 bf210034
91810030 7c0000a6 68008000 54008ffe <
0f000000>
3d20c04e 3b29ffb8 38000008
The issue was the beqlr returns early but we haven't reenabled interrupts.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Joel Becker [Wed, 17 Dec 2008 02:10:18 +0000 (18:10 -0800)]
ocfs2: Add JBD2 compat feature bit.
Define the OCFS2_FEATURE_COMPAT_JBD2 bit in the filesystem header.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Paul Mackerras [Wed, 17 Dec 2008 00:01:43 +0000 (11:01 +1100)]
Merge branch 'next' of /linux/kernel/git/jwboyer/powerpc-4xx into next
Tao Ma [Fri, 5 Dec 2008 01:14:10 +0000 (09:14 +0800)]
ocfs2: Always update xattr search when creating bucket.
When we create xattr bucket during the process of xattr set, we always
need to update the ocfs2_xattr_search since even if the bucket size is
the same as block size, the offset will change because of the removal
of the ocfs2_xattr_block header.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Ben Dooks [Fri, 31 Oct 2008 16:10:22 +0000 (16:10 +0000)]
i2c-s3c2410: fix check for being in suspend.
As noted by Julia Lawall <julia@diku.dk>, we can never
trigger the check for being in suspend due to the result
of !readl(i2c->regs + S3C2410_IICCON) & S3C2410_IICCON_IRQEN
always being 0.
Add suspend/resume hooks to stop i2c transactions happening
until the driver has been resumed.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Mike Ditto [Tue, 16 Dec 2008 20:17:09 +0000 (20:17 +0000)]
i2c-cpm: Detect and report NAK right away instead of timing out
Make the driver report an ENXIO error immediately upon NAK instead of
waiting for another interrupt and getting a timeout.
When reading from a device that is not present or declines to respond
to, e.g., a non-existent register address, CPM immediately reports a
NAK condition in the TxBD, but the driver kept waiting until a timeout,
which takes 1 second and causes an ugly console error message.
Signed-off-by: Mike Ditto <mditto@consentry.com>
Acked-by: Jochen Friedrich <jochen@scram.de>
[ben-linux@fluff.org: reordered description text]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Linus Torvalds [Tue, 16 Dec 2008 17:49:10 +0000 (09:49 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
ieee1394: add quirk fix for Freecom HDD
Linus Torvalds [Tue, 16 Dec 2008 17:48:53 +0000 (09:48 -0800)]
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:
pata_hpt366: no ATAPI DMA
pata_hpt366: fix cable detection,
libata: fix Seagate NCQ+FLUSH blacklist
Linus Torvalds [Tue, 16 Dec 2008 17:47:58 +0000 (09:47 -0800)]
Merge branch 'sh/for-2.6.28' of git://git./linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Disable GENERIC_HARDIRQS_NO__DO_IRQ for unconverted platforms.
sh: maple: Do not pass SLAB_POISON to kmem_cache_create()
Linus Torvalds [Tue, 16 Dec 2008 17:47:43 +0000 (09:47 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc/cell/axon-msi: Fix MSI after kexec
powerpc: Fix bootmem reservation on uninitialized node
powerpc: Check for valid hugepage size in hugetlb_get_unmapped_area
KOSAKI Motohiro [Tue, 16 Dec 2008 07:06:43 +0000 (16:06 +0900)]
mm: Don't touch uninitialized variable in do_pages_stat_array()
Commit
80bba1290ab5122c60cdb73332b26d288dc8aedd removed one necessary
variable initialization. As a result following warning happened:
CC mm/migrate.o
mm/migrate.c: In function 'sys_move_pages':
mm/migrate.c:1001: warning: 'err' may be used uninitialized in this function
More unfortunately, if find_vma() failed, kernel read uninitialized
memory.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
CC: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo [Tue, 9 Dec 2008 08:14:04 +0000 (17:14 +0900)]
pata_hpt366: no ATAPI DMA
IDE hpt366 driver doesn't allow DMA for ATAPI devices and MWDMA2 on
ATAPI device locks up pata_hpt366. Follow the suit.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Tue, 9 Dec 2008 08:13:19 +0000 (17:13 +0900)]
pata_hpt366: fix cable detection,
pata_hpt366 is strange in that its two channels occupy two PCI
functions and both are primary channels and bit1 of PCI configuration
register 0x5A indicates cable for both channels.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Thu, 11 Dec 2008 04:42:42 +0000 (13:42 +0900)]
libata: fix Seagate NCQ+FLUSH blacklist
Due to miscommunication, P/N was mistaken as firmware revision
strings. Update it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Paul Mundt [Mon, 8 Dec 2008 02:45:37 +0000 (11:45 +0900)]
sh: Disable GENERIC_HARDIRQS_NO__DO_IRQ for unconverted platforms.
Presently limited to Cayman, Dreamcast, Microdev, and SystemH 7751.
Re-enable it for everyone once these have been fixed up.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Matt Fleming [Tue, 16 Dec 2008 00:15:31 +0000 (09:15 +0900)]
sh: maple: Do not pass SLAB_POISON to kmem_cache_create()
SLAB_POISON is not a valid flag for kmem_create_cache() unless
CONFIG_DEBUG_SLAB is set, so remove it from the flags argument.
Acked-by: Adrian McMenamin <adrian@newgolddream.dyndns.info>
Signed-off-by: Matt Fleming <mjf@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Kay Sievers [Thu, 4 Dec 2008 18:01:52 +0000 (10:01 -0800)]
rapidio: struct device - replace bus_id with dev_name(), dev_set_name()
Cc: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Kay Sievers [Thu, 4 Dec 2008 18:02:56 +0000 (10:02 -0800)]
powerpc: struct device - replace bus_id with dev_name(), dev_set_name()
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Sun, 14 Dec 2008 19:44:51 +0000 (19:44 +0000)]
powerpc/mm: Remove flush_HPTE()
The function flush_HPTE() is used in only one place, the implementation
of DEBUG_PAGEALLOC on ppc32.
It's actually a dup of flush_tlb_page() though it's -slightly- more
efficient on hash based processors. We remove it and replace it by
a direct call to the hash flush code on those processors and to
flush_tlb_page() for everybody else.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Sun, 14 Dec 2008 19:44:39 +0000 (19:44 +0000)]
powerpc/mm: Rename tlb_32.c and tlb_64.c to tlb_hash32.c and tlb_hash64.c
This renames the files to clarify the fact that they are used by
the hash based family of CPUs (the 603 being an exception in that
family but is still handled by that code).
This paves the way for the new tlb_nohash.c coming via a subsequent
commit.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Sun, 14 Dec 2008 19:44:24 +0000 (19:44 +0000)]
powerpc/mm: Add local_flush_tlb_mm() to SW loaded TLB implementations
This adds a local_flush_tlb_mm() call as a pre-requisite for some
SMP work for BookE processors.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Sun, 14 Dec 2008 19:44:13 +0000 (19:44 +0000)]
powerpc: Fix asm EMIT_BUG_ENTRY with !CONFIG_BUG
Instead of not defining it at all, this defines the macro as
being empty, thus avoiding ifdef's in call sites when CONFIG_BUG
is not set.
Also removes an extra whitespace in the existing definition.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
FUJITA Tomonori [Sat, 13 Dec 2008 17:44:59 +0000 (17:44 +0000)]
powerpc: Remove dead BIO_VMERGE_BOUNDARY definition
The block layer dropped the virtual merge feature
(
b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5). BIO_VMERGE_BOUNDARY
definition is meaningless now (For POWER, BIO_VMERGE_BOUNDARY has been
meaningless for a long time since POWER disables the virtual merge
feature).
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Josh Boyer [Thu, 11 Dec 2008 09:46:44 +0000 (09:46 +0000)]
powerpc: Introduce ppc_pci_flags accessors
Currently there are a number of platforms that open code access to
the ppc_pci_flags global variable. However, that variable is not
present if CONFIG_PCI is not set, which can lead to a build break.
This introduces a number of accessor functions that are defined
to be empty in the case of CONFIG_PCI being disabled. The
various platform files in the kernel are updated to use these.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Thu, 11 Dec 2008 09:14:25 +0000 (09:14 +0000)]
powerpc/pseries: Check for GIQ indicator before calling set-indicator
Since "Factor out cpu joining/unjoining the GIQ"
(
b4963255ad5a426f04a0bb15c4315fa4bb40cde9) the WARN_ON in
xics_set_cpu_giq() is being triggered during boot on JS20 because the
GIQ indicator is not available on that platform. While the warning is
harmless and the system runs normally, it's nicer to check for the
existence of the indicator before trying to manipulate it.
Implement rtas_indicator_present(), which searches the
/rtas/rtas-indicators property for the given indicator token, and use
this function in xics_set_cpu_giq().
Also use a WARN statement in xics_set_cpu_giq to get better
information on failure.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Wed, 10 Dec 2008 14:28:42 +0000 (14:28 +0000)]
powerpc/powermac: Use set_hard_smp_processor_id() instead of smp_hw_index
The hard_smp_processor_id functions are the appropriate interfaces for
managing physical CPU ids.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nathan Lynch [Wed, 10 Dec 2008 14:28:41 +0000 (14:28 +0000)]
powerpc: Move smp_hw_index to 32-bit code
smp_hw_index isn't used on 64-bit, so move it from smp.c to
setup_32.c.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Vorontsov [Tue, 9 Dec 2008 09:47:29 +0000 (09:47 +0000)]
powerpc: Remove `have_of' global variable
The `have_of' variable is a relic from the arch/ppc time, it isn't
useful nowadays.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Becky Bruce [Thu, 4 Dec 2008 08:12:40 +0000 (08:12 +0000)]
powerpc: Fix !CONFIG_PPC_NEED_DMA_SYNC_OPS build warning
Change #define stubs of dma_sync ops to be empty static inlines
to avoid build warning.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geert Uytterhoeven [Wed, 3 Dec 2008 13:52:21 +0000 (13:52 +0000)]
powerpc/ps3: Add sub-match id modalias support
commit
059e4938f8b060b10c4352e6c45739473bc73267 ("powerpc/ps3: Add a sub-match
id to ps3_system_bus") forgot to update the module alias support:
- Add the sub-match ids to the module aliases, so udev can distinguish
between different types of sub-devices.
- Rename PS3_MODULE_ALIAS_GRAPHICS to PS3_MODULE_ALIAS_GPU_FB, as ps3fb
binds to the "FB" sub-device.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geoff Levand [Wed, 3 Dec 2008 13:52:15 +0000 (13:52 +0000)]
powerpc/ps3: Quiet dmesg output
Change the debug message in dma_sb_region_create() from
pr_info() to DBG() to quiet the dmesg output.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geoff Levand [Wed, 3 Dec 2008 13:52:05 +0000 (13:52 +0000)]
powerpc: Fix typo in pgtable-ppc64.h
Fix a minor comment typo in pgtable-ppc64.h.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nicolas Palix [Tue, 2 Dec 2008 03:34:46 +0000 (03:34 +0000)]
powerpc/chrp: Add missing of_node_put in pci.c
of_node_put is needed before discarding a value received from
of_find_node_by_name, eg in error handling code or when the device
node is no longer used.
The semantic match that catches the bug is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression struct device_node *n;
position p1, p2;
statement S1,S2;
expression E,E1;
expression *ptr != NULL;
@@
(
if (!(n@p1 = of_find_node_by_name(...))) S1
|
n@p1 = of_find_node_by_name(...)
)
<... when != of_node_put(n)
when != if (...) { <+... of_node_put(n) ...+> }
when != true !n || ...
when != n = E
when != E = n
if (!n || ...) S2
...>
(
return \(0\|<+...n...+>\|ptr\);
|
return@p2 ...;
|
n = E1
|
E1 = n
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
print "* file: %s of_find_node_by_name %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>
Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 16 Dec 2008 03:38:58 +0000 (14:38 +1100)]
Merge branch 'merge' into next
Arnd Bergmann [Fri, 12 Dec 2008 09:19:50 +0000 (09:19 +0000)]
powerpc/cell/axon-msi: Fix MSI after kexec
Commit
d015fe995 'powerpc/cell/axon-msi: Retry on missing interrupt'
has turned a rare failure to kexec on QS22 into a reproducible
error, which we have now analysed.
The problem is that after a kexec, the MSIC hardware still points
into the middle of the old ring buffer. We set up the ring buffer
during reboot, but not the offset into it. On older kernels, this
would cause a storm of thousands of spurious interrupts after a
kexec, which would most of the time get dropped silently.
With the new code, we time out on each interrupt, waiting for
it to become valid. If more interrupts come in that we time
out on, this goes on indefinitely, which eventually leads to
a hard crash.
The solution in this commit is to read the current offset from
the MSIC when reinitializing it. This now works correctly, as
expected.
Reported-by: Dirk Herrendoerfer <d.herrendoerfer@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Dave Hansen [Thu, 11 Dec 2008 08:36:06 +0000 (08:36 +0000)]
powerpc: Fix bootmem reservation on uninitialized node
careful_allocation() was calling into the bootmem allocator for
nodes which had not been fully initialized and caused a previous
bug: http://patchwork.ozlabs.org/patch/10528/ So, I merged a
few broken out loops in do_init_bootmem() to fix it. That changed
the code ordering.
I think this bug is triggered by having reserved areas for a node
which are spanned by another node's contents. In the
mark_reserved_regions_for_nid() code, we attempt to reserve the
area for a node before we have allocated the NODE_DATA() for that
nid. We do this since I reordered that loop. I suck.
This is causing crashes at bootup on some systems, as reported
by Jon Tollefson.
This may only present on some systems that have 16GB pages
reserved. But, it can probably happen on any system that is
trying to reserve large swaths of memory that happen to span other
nodes' contents.
This commit ensures that we do not touch bootmem for any node which
has not been initialized, and also removes a compile warning about
an unused variable.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Brian King [Thu, 4 Dec 2008 04:07:54 +0000 (04:07 +0000)]
powerpc: Check for valid hugepage size in hugetlb_get_unmapped_area
It looks like most of the hugetlb code is doing the correct thing if
hugepages are not supported, but the mmap code is not. If we get into
the mmap code when hugepages are not supported, such as in an LPAR
which is running Active Memory Sharing, we can oops the kernel. This
fixes the oops being seen in this path.
oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=1024 NUMA pSeries
Modules linked in: nfs(N) lockd(N) nfs_acl(N) sunrpc(N) ipv6(N) fuse(N) loop(N)
dm_mod(N) sg(N) ibmveth(N) sd_mod(N) crc_t10dif(N) ibmvscsic(N)
scsi_transport_srp(N) scsi_tgt(N) scsi_mod(N)
Supported: No
NIP:
c000000000038d60 LR:
c00000000003945c CTR:
c0000000000393f0
REGS:
c000000077e7b830 TRAP: 0300 Tainted: G
(2.6.27.5-bz50170-2-ppc64)
MSR:
8000000000009032 <EE,ME,IR,DR> CR:
44000448 XER:
20000001
DAR:
c000002000af90a8, DSISR:
0000000040000000
TASK =
c00000007c1b8600[4019] 'hugemmap01' THREAD:
c000000077e78000 CPU: 6
GPR00:
0000001fffffffe0 c000000077e7bab0 c0000000009a4e78 0000000000000000
GPR04:
0000000000010000 0000000000000001 00000000ffffffff 0000000000000001
GPR08:
0000000000000000 c000000000af90c8 0000000000000001 0000000000000000
GPR12:
000000000000003f c000000000a73880 0000000000000000 0000000000000000
GPR16:
0000000000000000 0000000000000000 0000000000000000 0000000000010000
GPR20:
0000000000000000 0000000000000003 0000000000010000 0000000000000001
GPR24:
0000000000000003 0000000000000000 0000000000000001 ffffffffffffffb5
GPR28:
c000000077ca2e80 0000000000000000 c00000000092af78 0000000000010000
NIP [
c000000000038d60] .slice_get_unmapped_area+0x6c/0x4e0
LR [
c00000000003945c] .hugetlb_get_unmapped_area+0x6c/0x80
Call Trace:
[
c000000077e7bbc0] [
c00000000003945c] .hugetlb_get_unmapped_area+0x6c/0x80
[
c000000077e7bc30] [
c000000000107e30] .get_unmapped_area+0x64/0xd8
[
c000000077e7bcb0] [
c00000000010b140] .do_mmap_pgoff+0x140/0x420
[
c000000077e7bd80] [
c00000000000bf5c] .sys_mmap+0xc4/0x140
[
c000000077e7be30] [
c0000000000086b4] syscall_exit+0x0/0x40
Instruction dump:
fac1ffb0 fae1ffb8 fb01ffc0 fb21ffc8 fb41ffd0 fb61ffd8 fb81ffe0 fbc1fff0
fbe1fff8 f821fef1 f8c10158 f8e10160 <
7d49002e>
f9010168 e92d01b0 eb4902b0
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Linus Torvalds [Tue, 16 Dec 2008 00:31:05 +0000 (16:31 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5348/1: fix documentation wrt location of the alignment trap interface
[ARM] Ensure linux/hardirqs.h is included where required
[ARM] fix kernel-doc syntax
[ARM] arch/arm/common/sa1111.c: Correct error handling code
[ARM] 5341/2: there is no copy_page on nommu ARM
Linus Torvalds [Tue, 16 Dec 2008 00:30:22 +0000 (16:30 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
Phonet: keep TX queue disabled when the device is off
SCHED: netem: Correct documentation comment in code.
netfilter: update rwlock initialization for nat_table
netlabel: Compiler warning and NULL pointer dereference fix
e1000e: fix double release of mutex
IA64: HP_SIMETH needs to depend upon NET
netpoll: fix race on poll_list resulting in garbage entry
ipv6: silence log messages for locally generated multicast
sungem: improve ethtool output with internal pcs and serdes
tcp: tcp_vegas cong avoid fix
sungem: Make PCS PHY support partially work again.
Rusty Russell [Mon, 15 Dec 2008 08:34:35 +0000 (19:04 +1030)]
Define smp_call_function_many for UP
Otherwise those using it in transition patches (eg. kvm) can't compile
with CONFIG_SMP=n:
arch/x86/kvm/../../../virt/kvm/kvm_main.c: In function 'make_all_cpus_request':
arch/x86/kvm/../../../virt/kvm/kvm_main.c:380: error: implicit declaration of function 'smp_call_function_many'
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Menage [Mon, 15 Dec 2008 21:54:22 +0000 (13:54 -0800)]
cgroups: fix a race between rmdir and remount
When a cgroup is removed, it's unlinked from its parent's children list,
but not actually freed until the last dentry on it is released (at which
point cgrp->root->number_of_cgroups is decremented).
Currently rebind_subsystems checks for the top cgroup's child list being
empty in order to rebind subsystems into or out of a hierarchy - this can
result in the set of subsystems bound to a hierarchy being
removed-but-not-freed cgroup.
The simplest fix for this is to forbid remounts that change the set of
subsystems on a hierarchy that has removed-but-not-freed cgroups. This
bug can be reproduced via:
mkdir /mnt/cg
mount -t cgroup -o ns,freezer cgroup /mnt/cg
mkdir /mnt/cg/foo
sleep 1h < /mnt/cg/foo &
rmdir /mnt/cg/foo
mount -t cgroup -o remount,ns,devices,freezer cgroup /mnt/cg
kill $!
Though the above will cause oops in -mm only but not mainline, but the bug
can cause memory leak in mainline (and even oops)
Signed-off-by: Paul Menage <menage@google.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Frederik Deweerdt [Mon, 15 Dec 2008 21:54:19 +0000 (13:54 -0800)]
ACPI toshiba: only register rfkill if bt is enabled
Part of the rfkill initialization was done whenever BT was on or not. The
following patch checks for BT presence before registering the rfkill to
the input layer. Some minor cleanups (> 80 char lines) were also added in
the process.
On Tue, Oct 28, 2008 at 10:10:37PM +0300, Andrey Borzenkov wrote:
[...]
> [ 66.633036] toshiba_acpi: Toshiba Laptop ACPI Extras version 0.19
> [ 66.633054] toshiba_acpi: HCI method: \_SB_.VALD.GHCI
> [ 66.637764] input: Toshiba RFKill Switch as /devices/virtual/input/input3
[...]
> [ 113.920753] ------------[ cut here ]------------
> [ 113.920828] kernel BUG at /home/bor/src/linux-git/net/rfkill/rfkill.c:347!
> [ 113.920845] invalid opcode: 0000 [#1]
> [ 113.920877] last sysfs file: /sys/devices/pci0000:00/0000:00:04.0/host0/target0:0:0/0:0:0:0/block/sda/size
> [ 113.920900] Dumping ftrace buffer:
> [ 113.920919] (ftrace buffer empty)
> [ 113.920933] Modules linked in: af_packet irnet ppp_generic slhc ircomm_tty ircomm binfmt_misc loop dm_mirror dm_region_hash dm_log dm_round_robin dm_multipath dm_mod alim15x3 ide_core nvram toshiba cryptomgr aead crypto_blkcipher michael_mic crypto_algapi orinoco_cs orinoco hermes_dld hermes pcmcia firmware_class snd_ali5451 snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device smsc_ircc2 snd_pcm_oss snd_pcm rtc_cmos irda snd_timer snd_mixer_oss rtc_core snd crc_ccitt yenta_socket rtc_lib rsrc_nonstatic i2c_ali1535 pcmcia_core pcspkr psmouse soundcore i2c_core evdev sr_mod snd_page_alloc alim1535_wdt cdrom fan sg video output toshiba_acpi rfkill thermal backlight ali_agp processor ac button input_polldev battery agpgart ohci_hcd usbcore reiserfs pata_ali libata sd_mod scsi_mod [last unloaded: scsi_wait_scan]
> [ 113.921765]
> [ 113.921785] Pid: 3272, comm: ipolldevd Not tainted (2.6.28-rc2-1avb #3) PORTEGE 4000
> [ 113.921801] EIP: 0060:[<
dfaa4683>] EFLAGS:
00010246 CPU: 0
> [ 113.921854] EIP is at rfkill_force_state+0x53/0x90 [rfkill]
> [ 113.921870] EAX:
00000000 EBX:
00000000 ECX:
00000003 EDX:
00000000
> [ 113.921885] ESI:
00000000 EDI:
ddd50300 EBP:
d8d7af40 ESP:
d8d7af24
> [ 113.921900] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
> [ 113.921918] Process ipolldevd (pid: 3272, ti=
d8d7a000 task=
d8d93c90 task.ti=
d8d7a000)
> [ 113.921933] Stack:
> [ 113.921945]
d8d7af38 00000246 dfb029d8 dfb029c0 dfb029d8 dfb029c0 ddd50300 d8d7af5c
> [ 113.922014]
dfb018e2 01000246 01000000 ddd50300 ddd50314 ddabb8a0 d8d7af68 dfb381c1
> [ 113.922098]
00000000 d8d7afa4 c012ec0a 00000000 00000002 00000000 c012eba8 ddabb8c0
> [ 113.922240] Call Trace:
> [ 113.922240] [<
dfb018e2>] ? bt_poll_rfkill+0x5c/0x82 [toshiba_acpi]
> [ 113.922240] [<
dfb381c1>] ? input_polled_device_work+0x11/0x40 [input_polldev]
> [ 113.922240] [<
c012ec0a>] ? run_workqueue+0xea/0x1f0
> [ 113.922240] [<
c012eba8>] ? run_workqueue+0x88/0x1f0
> [ 113.922240] [<
dfb381b0>] ? input_polled_device_work+0x0/0x40 [input_polldev]
> [ 113.922240] [<
c012f047>] ? worker_thread+0x87/0xf0
> [ 113.922240] [<
c0132b00>] ? autoremove_wake_function+0x0/0x50
> [ 113.922240] [<
c012efc0>] ? worker_thread+0x0/0xf0
> [ 113.922240] [<
c013280f>] ? kthread+0x3f/0x80
> [ 113.922240] [<
c01327d0>] ? kthread+0x0/0x80
> [ 113.922240] [<
c01040d7>] ? kernel_thread_helper+0x7/0x10
> [ 113.922240] Code: 43 54 89 73 54 39 c6 74 11 89 d9 ba 01 00 00 00 b8 40 68 aa df e8 3e 35 69 e0 89 f8 e8 77 fd 85 e0 31 c0 83 c4 10 5b 5e 5f 5d c3 <0f> 0b eb fe 89 f6 8d bc 27 00 00 00 00 be f4 4d aa df bb 5f 01
> [ 113.922240] EIP: [<
dfaa4683>] rfkill_force_state+0x53/0x90 [rfkill] SS:ESP 0068:
d8d7af24
> [ 113.924700] ---[ end trace
0e404eb40cadd5f0 ]---
Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Tested-by: Andrey Borzenkov <arvidjaar@mail.ru>
Acked-by: Len Brown <len.brown@intel.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Acked-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Halcrow [Mon, 15 Dec 2008 21:54:17 +0000 (13:54 -0800)]
eCryptfs: Update maintainers
Tyler Hicks and Dustin Kirkland are now the primary contact points for
eCryptfs issues that may arise from this point forward.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Acked-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Acked-by: Dustin Kirkland <kirkland@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Catalin Marinas [Mon, 15 Dec 2008 21:54:16 +0000 (13:54 -0800)]
slob: do not pass the SLAB flags as GFP in kmem_cache_create()
The kmem_cache_create() function in the slob allocator passes the SLAB
flags as GFP flags to the slob_alloc() function. The patch changes this
call to pass GFP_KERNEL as the other allocators seem to do.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Mon, 15 Dec 2008 21:54:14 +0000 (13:54 -0800)]
pcmcia: blackfin: fix bug - add missing ; to MODULE macro
Cc: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kumar Gala [Sat, 13 Dec 2008 23:41:41 +0000 (17:41 -0600)]
powerpc/85xx: Fix compile issues with mpc8572ds.dts
Fix the localbus reg & range properties to respect that the top
level #address-cells and #size-cells = 2. The original commit
(
c64ef80b517680f1e228b2ee55e3ce7cd94c7fe0) did not do that.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Benjamin Herrenschmidt [Fri, 12 Dec 2008 06:33:25 +0000 (17:33 +1100)]
powerpc: Fix bogus cache flushing on all 40x and BookE processors v2
We were missing the CPU_FTR_NOEXECUTE bit in our cputable for all
these processors. The result is that update_mmu_cache() would flush
the cache for all pages mapped to userspace which is totally
unnecessary on those processors since we already handle flushing
on execute in the page fault path.
This should provide a nice speed up ;-)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Nicolas Pitre [Mon, 15 Dec 2008 02:09:15 +0000 (03:09 +0100)]
[ARM] 5348/1: fix documentation wrt location of the alignment trap interface
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 14 Dec 2008 18:01:44 +0000 (18:01 +0000)]
[ARM] Ensure linux/hardirqs.h is included where required
... for the removal of it from asm-generic/local.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rémi Denis-Courmont [Mon, 15 Dec 2008 08:53:57 +0000 (00:53 -0800)]
Phonet: keep TX queue disabled when the device is off
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Dangaard Brouer [Mon, 15 Dec 2008 08:39:17 +0000 (00:39 -0800)]
SCHED: netem: Correct documentation comment in code.
The netem simulator is no longer limited by Linux timer resolution HZ.
Not since Patrick McHardy changed the QoS system to use hrtimer.
Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steven Rostedt [Mon, 15 Dec 2008 08:19:14 +0000 (00:19 -0800)]
netfilter: update rwlock initialization for nat_table
The commit
e099a173573ce1ba171092aee7bb3c72ea686e59
(netfilter: netns nat: per-netns NAT table) renamed the
nat_table from __nat_table to nat_table without updating the
__RW_LOCK_UNLOCKED(__nat_table.lock).
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 15 Dec 2008 00:25:19 +0000 (16:25 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/galak/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc:
powerpc/fsl-booke: Fix problem with _tlbil_va being interrupted
Zachary Amsden [Sat, 13 Dec 2008 20:36:58 +0000 (12:36 -0800)]
x86 Fix VMI crash on boot in 2.6.28-rc8
VMI initialiation can relocate the fixmap, causing early_ioremap to
malfunction if it is initialized before the relocation. To fix this,
VMI activation is split into two phases; the detection, which must
happen before setting up ioremap, and the activation, which must happen
after parsing early boot parameters.
This fixes a crash on boot when VMI is enabled under VMware.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 14 Dec 2008 23:46:01 +0000 (15:46 -0800)]
Revert "sched_clock: prevent scd->clock from moving backwards"
This reverts commit
5b7dba4ff834259a5623e03a565748704a8fe449, which
caused a regression in hibernate, reported by and bisected by Fabio
Comolli.
This revert fixes
http://bugzilla.kernel.org/show_bug.cgi?id=12155
http://bugzilla.kernel.org/show_bug.cgi?id=12149
Bisected-by: Fabio Comolli <fabio.comolli@gmail.com>
Requested-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Mon, 1 Dec 2008 22:15:37 +0000 (14:15 -0800)]
[ARM] fix kernel-doc syntax
Fix kernel-doc notation to use correct syntax. Even though this should be
moved to where the function is actually implemented...
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Julia Lawall [Sat, 13 Dec 2008 15:37:59 +0000 (16:37 +0100)]
[ARM] arch/arm/common/sa1111.c: Correct error handling code
If it is reasonable to apply PTR_ERR to the result of calling clk_get, then
that result should first be tested with IS_ERR, not with !.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
expression E,E1;
@@
if (
- E == NULL
+ IS_ERR(E)
) { <+... when != E = E1
PTR_ERR(E)
...+> }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>