23 Oct, 2010
5 commits
-
IRQ and resource[] may not have correct values until
after PCI hotplug setup occurs at pci_enable_device() time.The semantic match that finds this problem is as follows:
//
@@
identifier x;
identifier request ~= "pci_request.*|pci_resource.*";
@@(
* x->irq
|
* x->resource
|
* request(x, ...)
)
...
*pci_enable_device(x)
//Signed-off-by: Kulikov Vasiliy
Acked-by: Michael S. Tsirkin
Signed-off-by: Hans J. Koch
Signed-off-by: Greg Kroah-Hartman -
In theory (although not *yet* in practice), a driver being passed
to platform_driver_probe might have driver.bus set to something
other than platform_bus_type. Locking drv->driver.bus is always
correct.Signed-off-by: Patrick Pannuto
Signed-off-by: Greg Kroah-Hartman -
Having the ddebug_query= boot parameter it makes sense to set up
dynamic debug as soon as possible.I expect sysfs files cannot be set up via an arch_initcall, because
this one is even before fs_initcall. Therefore I splitted the
dynamic_debug_init function into an early one and a later one providing
/sys/../dynamic_debug/control file.Possibly dynamic_debug can be initialized even earlier, not sure whether
this still makes sense then. I picked up arch_initcall as it covers
quite a lot already.Dynamic debug needs to allocate memory, therefore it's not easily possible to
set it up even before the command line gets parsed.
Therefore the boot param query string is stored in a temp string which is
applied when dynamic debug gets set up.This has been tested with ddebug_query="file ec.c +p"
and I could retrieve pr_debug() messages early at boot during ACPI setup:
ACPI: EC: Look up EC in DSDT
ACPI: EC: ---> status = 0x08
ACPI: EC: transaction start
ACPI: EC: interrupt
ACPI: EC: ---> status = 0x08
ACPI: EC: status = 0x00
ACPI: EC: transaction start
ACPI: EC:
Acked-by: jbaron@redhat.com
Acked-by: Pekka Enberg
CC: linux-acpi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman -
Dynamic debug lacks the ability to enable debug messages at boot time.
One could patch initramfs or service startup scripts to write to
/sys/../dynamic_debug/control, but this sucks.This patch makes it possible to pass a query in the same format one can
write to /sys/../dynamic_debug/control via boot param.
When dynamic debug gets initialized, this query will automatically be
applied.Signed-off-by: Thomas Renninger
Acked-by: jbaron@redhat.com
Acked-by: Pekka Enberg
Signed-off-by: Greg Kroah-Hartman -
The parsing and applying of dynamic debug strings is not only useful for
/sys/../dynamic_debug/control write access, but can also be used for
boot parameter parsing.
The boot parameter is introduced in a follow up patch.Signed-off-by: Thomas Renninger
Acked-by: jbaron@redhat.com
Acked-by: Pekka Enberg
Signed-off-by: Greg Kroah-Hartman
21 Oct, 2010
5 commits
-
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
MIPS: O32 compat/N32: Fix to use compat syscall wrappers for AIO syscalls.
MAINTAINERS: Change list for ioc_serial to linux-serial.
SERIAL: ioc3_serial: Return -ENOMEM on memory allocation failure
MIPS: jz4740: Fix Kbuild Platform file.
MIPS: Repair Kbuild make clean breakage. -
If the host is slow in reading data or doesn't read data at all,
blocking write calls not only blocked the program that called write()
but the entire guest itself.To overcome this, let's not block till the host signals it has given
back the virtio ring element we passed it. Instead, send the buffer to
the host and return to userspace. This operation then becomes similar
to how non-blocking writes work, so let's use the existing code for this
path as well.This code change also ensures blocking write calls do get blocked if
there's not enough room in the virtio ring as well as they don't return
-EAGAIN to userspace.Signed-off-by: Amit Shah
Acked-by: Hans de Goede
CC: stable@kernel.org
Signed-off-by: Rusty Russell
Signed-off-by: Linus Torvalds -
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] bsg: fix incorrect device_status value
[SCSI] Fix VPD inquiry page wrapper -
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Fix fs/gs reload oops with invalid ldt
20 Oct, 2010
7 commits
-
[Ralf: Michel's original patch only fixed N32; I replicated the same fix
for O32.]Signed-off-by: Michel Thebeau
Cc: paul.gortmaker@windriver.com
Cc: bruce.ashfield@windriver.com
Signed-off-by: Ralf Baechle -
IOC3 is also being used on SGI MIPS systems but this particular driver is
only being used on IA64 systems so linux-mips made no sense as a list. Pat
also thinks linux-serial@vger.kernel.org is the better list.Signed-off-by: Ralf Baechle
-
In this code, 0 is returned on memory allocation failure, even though other
failures return -ENOMEM or other similar values.A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)//
@@
expression ret;
expression x,e1,e2,e3;
@@ret = 0
... when != ret = e1
*x = \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
return ret;
}
//Signed-off-by: Julia Lawall
To: Pat Gefre
Cc: kernel-janitors@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1704/
Signed-off-by: Ralf Baechle -
The platform specific files should be included via the platform-y
variable.Signed-off-by: David Daney
Cc: Lars-Peter Clausen
Patchwork: https://patchwork.linux-mips.org/patch/1719/
Signed-off-by: Ralf Baechle -
When running make clean, Kbuild doesn't process the .config file, so nothing
generates a platform-y variable. We can get it to descend into the platform
directories by setting $(obj-).The dec Platform file was unconditionally setting platform-, obliterating
its previous contents and preventing some directories from being cleaned.
This is change to an append operation '+=' to allow cavium-octeon to be
cleaned.Signed-off-by: David Daney
Cc: Sam Ravnborg
Patchwork: https://patchwork.linux-mips.org/patch/1718/
Signed-off-by: Ralf Baechle -
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms: avivo cursor workaround applies to evergreen as well -
kvm reloads the host's fs and gs blindly, however the underlying segment
descriptors may be invalid due to the user modifying the ldt after loading
them.Fix by using the safe accessors (loadsegment() and load_gs_index()) instead
of home grown unsafe versions.This is CVE-2010-3698.
KVM-Stable-Tag.
Signed-off-by: Avi Kivity
Signed-off-by: Marcelo Tosatti
19 Oct, 2010
6 commits
-
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
MIPS: Enable ISA_DMA_API config to fix build failure
MIPS: 32-bit: Fix build failure in asm/fcntl.h
MIPS: Remove all generated vmlinuz* files on "make clean"
MIPS: do_sigaltstack() expects userland pointers
MIPS: Fix error values in case of bad_stack
MIPS: Sanitize restart logics
MIPS: secure_computing, syscall audit: syscall number should in r2, not r0.
MIPS: Don't block signals if we'd failed to setup a sigframe -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: evdev - fix EVIOCSABS regression
Input: evdev - fix Ooops in EVIOCGABS/EVIOCSABS -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: ohci: fix TI TSB82AA2 regression since 2.6.35 -
This patch reverts the driver to enabling/disabling the NFC interrupt
mask rather than enabling/disabling the system interrupt. This cleans
up the driver so that it doesn't rely on interrupts being disabled
within the interrupt handler.For i.MX21 we keep the current behaviour, that is calling
enable_irq/disable_irq_nosync to enable/disable interrupts. This patch
is based on earlier work by John Ogness.Signed-off-by: Sascha Hauer
Acked-by: John Ogness
Tested-by: John Ogness
Signed-off-by: David Woodhouse
Signed-off-by: Linus Torvalds -
* 'for-linus/i2c/2636-rc8' of git://git.fluff.org/bjdooks/linux:
i2c-imx: do not allow interruptions when waiting for I2C to complete
i2c-davinci: Fix TX setup for more SoCs -
* fixes:
v4l1: fix 32-bit compat microcode loading translation
De-pessimize rds_page_copy_user
18 Oct, 2010
14 commits
-
Add ISA_DMA_API config item and select it when GENERIC_ISA_DMA enabled.
This fixes build failure on allmodconfig like following:CC sound/isa/es18xx.o
sound/isa/es18xx.c: In function 'snd_es18xx_playback1_prepare':
sound/isa/es18xx.c:501:9: error: implicit declaration of function 'snd_dma_program'
sound/isa/es18xx.c: In function 'snd_es18xx_playback_pointer':
sound/isa/es18xx.c:818:3: error: implicit declaration of function 'snd_dma_pointer'
make[3]: *** [sound/isa/es18xx.o] Error 1
make[2]: *** [sound/isa/es18xx.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2Signed-off-by: Namhyung Kim
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1717/
Signed-off-by: Ralf Baechle -
CC security/integrity/ima/ima_fs.o
In file included from linux/include/linux/fcntl.h:4:0,
from linux/security/integrity/ima/ima_fs.c:18:
linux/arch/mips/include/asm/fcntl.h:63:2: error: expected specifier-qualifier-list before 'off_t'
make[3]: *** [security/integrity/ima/ima_fs.o] Error 1
make[2]: *** [security/integrity/ima/ima_fs.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2Signed-off-by: Namhyung Kim
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1715/
Signed-off-by: Ralf Baechle -
[Ralf: I changed the patch to explicitly list all files to be deleted out
of paranoia.]Signed-off-by: Wu Zhangjin
Patchwork: http://patchwork.linux-mips.org/patch/1590/
Signed-off-by: Ralf Baechle -
o32 compat does the right thing, native and n32 compat do not...
Signed-off-by: Al Viro
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1700/
Signed-off-by: Ralf Baechle -
We want EFAULT, not -
Signed-off-by: Al Viro
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1699/
Signed-off-by: Ralf Baechle -
Put the original syscall number into ->regs[0] when we leave syscall
with error. Use it in restart logics. Everything else will have
it 0 since we pass through SAVE_SOME on all the ways in. Note that
in places like bad_stack and inllegal_syscall we leave it 0 - it's not
restartable.Signed-off-by: Al Viro
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1698/
Signed-off-by: Ralf Baechle -
As it is, audit_syscall_entry() and secure_computing() get the
bogus value (0, in fact)Signed-off-by: Al Viro
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1697/
Signed-off-by: Ralf Baechle -
Signed-off-by: Al Viro
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1696/
Signed-off-by: Ralf Baechle -
448cd16 ("Input: evdev - rearrange ioctl handling") broke EVIOCSABS by
checking for the wrong direction bit.Signed-off-by: Daniel Mack
Reported-by: Sven Neumann
Tested-by: Sven Neumann
Signed-off-by: Dmitry Torokhov -
This fixes a regression introduced by the dynamic allocation of absinfo
for input devices. We need to bail out early for input devices which
don't have absolute axis.[ 929.664303] Pid: 2989, comm: input Not tainted 2.6.36-rc8+ #14 MS-7260/MS-7260
[ 929.664318] EIP: 0060:[] EFLAGS: 00010246 CPU: 0
[ 929.664331] EIP is at evdev_ioctl+0x4f8/0x59f
[ 929.664341] EAX: 00000040 EBX: 00000000 ECX: 00000006 EDX: f45a1efc
[ 929.664355] ESI: 00000000 EDI: f45a1efc EBP: f45a1f24 ESP: f45a1eb8
[ 929.664369] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 929.664402] f470da74 f6a30e78 f462c240 00000018 bfe4a260 00000000 f45b06fc 00000000
[ 929.664429] 000000c4 b769d000 c3544620 f470da74 f45b06fc f45b06fc f45a1f38 c107dd1f
[ 929.664458] f4710b74 000000c4 00000000 00000000 00000000 0000029d 00000a74 f4710b74
[ 929.664500] [] ? handle_mm_fault+0x2be/0x59a
[ 929.664513] [] ? evdev_ioctl+0x0/0x59f
[ 929.664524] [] ? do_vfs_ioctl+0x494/0x4d9
[ 929.664538] [] ? up_read+0x16/0x29
[ 929.664550] [] ? do_page_fault+0x2ff/0x32d
[ 929.664564] [] ? do_sys_open+0xc5/0xcf
[ 929.664575] [] ? sys_ioctl+0x41/0x61
[ 929.664587] [] ? sysenter_do_call+0x12/0x36
[ 929.684570] ---[ end trace 11b83e923bd8f2bb ]---Signed-off-by: Daniel Mack
Signed-off-by: Dmitry Torokhov -
The i2c_imx_trx_complete() function is using
wait_event_interruptible_timeout() to wait for the I2C controller to
signal that it has completed an I2C bus operation. If the process that
causes the I2C operation receives a signal, the wait will be
interrupted, returning an error. It is better to let the I2C operation
finished before handling the signal (i.e. returning into userspace).It is safe to use wait_event_timeout() instead, because the timeout
will allow the process to exit if the I2C bus hangs. It's also better
to allow the I2C operation to finish, because unacknowledged I2C
operations can cause the I2C bus to hang.Signed-off-by: Marc Kleine-Budde
Reviewed-by: Wolfram Sang
Signed-off-by: Ben Dooks -
This patch is an improvement to 4bba0fd8d1c6d405df666e2573e1a1f917098be0
which got to mainline a little early.Sudhakar Rajashekhara explains that at least OMAP-L138 requires MDR mode
settings before DXR for correct behaviour, so load MDR first with
STT cleared and later load again with STT set.Tested on DM355 connected to Techwell TW2836 and Wolfson WM8985
Signed-off-by: Jon Povey
Acked-by: Troy Kisky
Tested-by: Sudhakar Rajashekhara
Acked-by: Kevin Hilman
Signed-off-by: Ben Dooks -
Fixes cursor corruption in certain cases.
Signed-off-by: Alex Deucher
Cc: stable@kernel.org
Signed-off-by: Dave Airlie -
* 'fix/misc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: rawmidi: fix oops (use after free) when unloading a driver module
17 Oct, 2010
2 commits
-
Revert commit 54672386ccf36ffa21d1de8e75624af83f9b0eeb
"firewire: ohci: fix up configuration of TI chips".
It caused massive slow-down and data corruption with a TSB82AA2 based
StarTech EC1394B2 ExpressCard and FireWire 800 harddisks.https://bugs.launchpad.net/ubuntu/+source/linux/+bug/657081
http://thread.gmane.org/gmane.linux.kernel.firewire.user/4013The fact that some card EEPROMs do not program these enhancements may be
related to TSB81BA3 phy chip errata, if not to bugs of TSB82AA2 itself.
We could re-add these configuration steps, but only conditional on a
whitelist of cards on which these enhancements bring a proven positive
effect.Reported-and-tested-by: Eric Shattow
Cc: Clemens Ladisch
Cc: 2.6.35
Signed-off-by: Stefan Richter -
When a driver module is unloaded and the last still open file is a raw
MIDI device, the card and its devices will be actually freed in the
snd_card_file_remove() call when that file is closed. Afterwards, rmidi
and rmidi->card point into freed memory, so the module pointer is likely
to be garbage.
(This was introduced by commit 9a1b64caac82aa02cb74587ffc798e6f42c6170a.)Signed-off-by: Clemens Ladisch
Reported-by: Krzysztof Foltman
Cc: 2.6.30-2.6.35
Signed-off-by: Takashi Iwai
16 Oct, 2010
1 commit
-
Fixes build for me... these are what's tested in byteorder.h...
Signed-off-by: Kyle McMartin
Signed-off-by: Linus Torvalds
