17 Jan, 2012
1 commit
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If there is an architecture-specific random number generator (such as
RDRAND for Intel architectures), use it to initialize /dev/random's
entropy stores. Even in the worst case, if RDRAND is something like
AES(NSA_KEY, counter++), it won't hurt, and it will definitely help
against any other adversaries.Signed-off-by: "Theodore Ts'o"
Link: http://lkml.kernel.org/r/1324589281-31931-1-git-send-email-tytso@mit.edu
Signed-off-by: H. Peter Anvin
30 Dec, 2011
1 commit
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We still don't use rdrand in /dev/random, which just seems stupid. We
accept the *cycle*counter* as a random input, but we don't accept
rdrand? That's just broken.Sure, people can do things in user space (write to /dev/random, use
rdrand in addition to /dev/random themselves etc etc), but that
*still* seems to be a particularly stupid reason for saying "we
shouldn't bother to try to do better in /dev/random".And even if somebody really doesn't trust rdrand as a source of random
bytes, it seems singularly stupid to trust the cycle counter *more*.So I'd suggest the attached patch. I'm not going to even bother
arguing that we should add more bits to the entropy estimate, because
that's not the point - I don't care if /dev/random fills up slowly or
not, I think it's just stupid to not use the bits we can get from
rdrand and mix them into the strong randomness pool.Link: http://lkml.kernel.org/r/CA%2B55aFwn59N1=m651QAyTy-1gO1noGbK18zwKDwvwqnravA84A@mail.gmail.com
Acked-by: "David S. Miller"
Acked-by: "Theodore Ts'o"
Acked-by: Herbert Xu
Cc: Matt Mackall
Cc: Tony Luck
Cc: Eric Dumazet
Signed-off-by: H. Peter Anvin
24 Dec, 2011
1 commit
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* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] omap3isp: Fix crash caused by subdevs now having a pointer to devnodes
23 Dec, 2011
8 commits
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* 'for-linus' of git://neil.brown.name/md:
md/bitmap: It is OK to clear bits during recovery.
md: don't give up looking for spares on first failure-to-add
md/raid5: ensure correct assessment of drives during degraded reshape.
md/linear: fix hot-add of devices to linear arrays. -
commit d0a4bb492772ce5c4bdfba3744a99ed6f6fb238f introduced a
regression which is annoying but fairly harmless.When writing to an array that is undergoing recovery (a spare
in being integrated into the array), writing to the array will
set bits in the bitmap, but they will not be cleared when the
write completes.For bits covering areas that have not been recovered yet this is not a
problem as the recovery will clear the bits. However bits set in
already-recovered region will stay set and never be cleared.
This doesn't risk data integrity. The only negatives are:
- next time there is a crash, more resyncing than necessary will
be done.
- the bitmap doesn't look clean, which is confusing.While an array is recovering we don't want to update the
'events_cleared' setting in the bitmap but we do still want to clear
bits that have very recently been set - providing they were written to
the recovering device.So split those two needs - which previously both depended on 'success'
and always clear the bit of the write went to all devices.Signed-off-by: NeilBrown
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Before performing a recovery we try to remove any spares that
might not be working, then add any that might have become relevant.Currently we abort on the first spare that cannot be added.
This is a false optimisation.
It is conceivable that - depending on rules in the personality - a
subsequent spare might be accepted.
Also the loop does other things like count the available spares and
reset the 'recovery_offset' value.If we abort early these might not happen properly.
So remove the early abort.
In particular if you have an array what is undergoing recovery and
which has extra spares, then the recovery may not restart after as
reboot as the could of 'spares' might end up as zero.Reported-by: Anssi Hannula
Signed-off-by: NeilBrown -
While reshaping a degraded array (as when reshaping a RAID0 by first
converting it to a degraded RAID4) we currently get confused about
which devices are in_sync. In most cases we get it right, but in the
region that is being reshaped we need to treat non-failed devices as
in-sync when we have the data but haven't actually written it out yet.Reported-by: Adam Kwolek
Signed-off-by: NeilBrown -
commit d70ed2e4fafdbef0800e73942482bb075c21578b
broke hot-add to a linear array.
After that commit, metadata if not written to devices until they
have been fully integrated into the array as determined by
saved_raid_disk. That patch arranged to clear that field after
a recovery completed.However for linear arrays, there is no recovery - the integration is
instantaneous. So we need to explicitly clear the saved_raid_disk
field.Signed-off-by: NeilBrown
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* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: Fix usb/isp1760 build on sparc
usb: gadget: epautoconf: do not change number of streams
usb: dwc3: core: fix cached revision on our structure
usb: musb: fix reset issue with full speed device -
* 'upstream-linus' of git://github.com/jgarzik/libata-dev:
pata_of_platform: Add missing CONFIG_OF_IRQ dependency. -
Signed-off-by: David S. Miller
Signed-off-by: Jeff Garzik
22 Dec, 2011
5 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: Add a flow_cache_flush_deferred function
ipv4: reintroduce route cache garbage collector
net: have ipconfig not wait if no dev is available
sctp: Do not account for sizeof(struct sk_buff) in estimated rwnd
asix: new device id
davinci-cpdma: fix locking issue in cpdma_chan_stop
sctp: fix incorrect overflow check on autoclose
r8169: fix Config2 MSIEnable bit setting.
llc: llc_cmsg_rcv was getting called after sk_eat_skb.
net: bpf_jit: fix an off-one bug in x86_64 cond jump target
iwlwifi: update SCD BC table for all SCD queues
Revert "Bluetooth: Revert: Fix L2CAP connection establishment"
Bluetooth: Clear RFCOMM session timer when disconnecting last channel
Bluetooth: Prevent uninitialized data access in L2CAP configuration
iwlwifi: allow to switch to HT40 if not associated
iwlwifi: tx_sync only on PAN context
mwifiex: avoid double list_del in command cancel path
ath9k: fix max phy rate at rate control init
nfc: signedness bug in __nci_request()
iwlwifi: do not set the sequence control bit is not needed -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: Include linux/io.h to jz4740-adc
mfd: Use request_threaded_irq for twl4030-irq instead of irq_set_chained_handler
mfd: Base interrupt for twl4030-irq must be one-shot
mfd: Handle tps65910 clear-mask correctly
mfd: add #ifdef CONFIG_DEBUG_FS guard for ab8500_debug_resources
mfd: Fix twl-core oops while calling twl_i2c_* for unbound driver
mfd: include linux/module.h for ab5500-debugfs
mfd: Update wm8994 active device checks for WM1811
mfd: Set tps6586x bits if new value is different from the old one
mfd: Set da903x bits if new value is different from the old one
mfd: Set adp5520 bits if new value is different from the old one
mfd: Add missed free_irq in da903x_remove -
* 'for-greg' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
usb: gadget: epautoconf: do not change number of streams
usb: dwc3: core: fix cached revision on our structure
usb: musb: fix reset issue with full speed device -
This commit:
commit 8f5d621543cb064d2989fc223d3c2bc61a43981e
Author: Joachim Foerster
Date: Mon Oct 10 18:06:54 2011 +0200usb/isp1760: Let OF bindings depend on general CONFIG_OF instead of PPC_OF .
To be able to use the driver on other OF-aware architectures, too.
And add necessary OF related #includes to fix compilation error.Signed-off-by: Joachim Foerster
Signed-off-by: Greg Kroah-Hartmanenabled the build on all CONFIG_OF architectures, but it cannot do
this.This driver depends upon CONFIG_OF_IRQ but not all CONFIG_OF platforms
support that infrastructure, in particular Sparc does not so the
build fails.Please push a patch like the following to Linus so that this code only
gets built where it actually should.--------------------
usb/isp1760: Add missing CONFIG_OF_IRQ dependency on OF code.Signed-off-by: David S. Miller
Signed-off-by: Greg Kroah-Hartman -
…wireless into for-davem
21 Dec, 2011
20 commits
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* git://git.infradead.org/mtd-2.6:
mtd: plat_ram: call mtd_device_register only if partition data exists
mtd: pxa2xx-flash.c: It used to fall back to provided table.
mtd: gpmi: add missing include 'module.h'
mtd: ndfc: fix typo in structure dereference -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: vub300: fix type of firmware_rom_wait_states module parameter
Revert "mmc: enable runtime PM by default"
mmc: sdhci: remove "state" argument from sdhci_suspend_host -
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
time/clocksource: Fix kernel-doc warnings
rtc: m41t80: Workaround broken alarm functionality
rtc: Expire alarms after the time is set. -
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
oprofile: Fix uninitialized memory access when writing to writing to oprofilefs -
…kernel/git/konrad/xen
* 'stable/for-linus-fixes-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
Revert "xen/pv-on-hvm kexec: add xs_reset_watches to shutdown watches from old kernel" -
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
vmwgfx: Clip cliprects against screen boundaries in present and dirty
vmwgfx: Resend the cursor after legacy modeset
vmwgfx: Do better culling of presents
vmwgfx: Refactor kms code to use vmw_user_lookup_handle helper
vmwgfx: Add helper function to get surface or dmabuf
vmwgfx: Refactor cursor update
vmwgfx: Remove dmabuf check in present ioctl
vmwgfx: Use the revised fifo hw version register when present -
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (31 commits)
Revert "[media] af9015: limit I2C access to keep FW happy"
[media] s5p-fimc: Fix camera input configuration in subdev operations
[media] m5mols: Fix logic in sanity check
[media] ati_remote: switch to single-byte scancodes
[media] V4L: mt9m111: fix uninitialised mutex
[media] V4L: omap1_camera: fix missing include
[media] V4L: mt9t112: use after free in mt9t112_probe()
[media] V4L: soc-camera: fix compiler warnings on 64-bit platforms
[media] s5p_mfc_enc: fix s/H264/H263/ typo
[media] omap_vout: Fix compile error in 3.1
[media] au0828: add missing models 72101, 72201 & 72261 to the model matrix
[media] au0828: add missing USB ID 2040:7213
[media] au0828: add missing USB ID 2040:7260
[media] [trivial] omap24xxcam-dma: Fix logical test
[media] omap_vout: fix crash if no driver for a display
[media] media: video: s5p-tv: fix build break
[media] omap3isp: fix compilation of ispvideo.c
[media] m5mols: Fix set_fmt to return proper pixel format code
[media] s5p-fimc: Use correct fourcc for RGB565 colour format
[media] s5p-fimc: Fail driver probing when sensor configuration is wrong
... -
If the BMC gets reset, it will return 0x80 response errors.
In less than a week
# grep "Error 80 on cmd 22" /var/log/kernel |wc -l
378681In this case, it is probably a good idea to restore the IPMI settings.
Signed-off-by: Corey Minyard
Tested-by: Arkadiusz Miśkiewicz
Reported-by: Arkadiusz Miśkiewicz
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Include linux/io.h to fix below build error:
CC drivers/mfd/jz4740-adc.o
drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_irq_demux':
drivers/mfd/jz4740-adc.c:73: error: implicit declaration of function 'readb'
drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_set_enabled':
drivers/mfd/jz4740-adc.c:110: error: implicit declaration of function 'writeb'
drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_set_config':
drivers/mfd/jz4740-adc.c:146: error: implicit declaration of function 'readl'
drivers/mfd/jz4740-adc.c:151: error: implicit declaration of function 'writel'
drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_probe':
drivers/mfd/jz4740-adc.c:249: error: implicit declaration of function 'ioremap_nocache'
drivers/mfd/jz4740-adc.c:249: warning: assignment makes pointer from integer without a cast
drivers/mfd/jz4740-adc.c:289: warning: passing argument 3 of 'mfd_add_devices' discards qualifiers from pointer target type
include/linux/mfd/core.h:93: note: expected 'struct mfd_cell *' but argument is of type 'const struct mfd_cell *'
drivers/mfd/jz4740-adc.c:299: error: implicit declaration of function 'iounmap'
make[2]: *** [drivers/mfd/jz4740-adc.o] Error 1
make[1]: *** [drivers/mfd] Error 2
make: *** [drivers] Error 2Signed-off-by: Axel Lin
Acked-by: Lars-Peter Clausen
Signed-off-by: Samuel Ortiz -
irq_set_chained_handler sets 'desc->handle_irq'.
However this irq is called by handle_nested_irq from handle_twl4030_pih,
and that uses action->thread_fn.So the handled set with irq_set_chained_handler is never called.
So change to use request_threaded_irq instead - that sets the correct field.
Tested on GTA04 Phoenux.
Signed-off-by: NeilBrown
Tested-by: Felipe Contreras
Signed-off-by: Samuel Ortiz -
As the interrupt source is only cleared by the threaded interrupt
service routine, we need to make the base interrupt IRQF_ONESHOT.
Without this, the first interrupt from the TWL4030 cause the CPU to
enter an infinite loop trying to handle to interrupt but never
clearing it.Signed-off-by: NeilBrown
Tested-by: Felipe Contreras
Signed-off-by: Samuel Ortiz -
The function is not actually cleaing the bitmask.
Signed-off-by: Marcus Folkesson
Signed-off-by: Samuel Ortiz -
Fix below build warning if CONFIG_DEBUG_FS is disabled.
CC drivers/mfd/ab8500-core.o
drivers/mfd/ab8500-core.c:623: warning: 'ab8500_debug_resources' defined but not usedSigned-off-by: Axel Lin
Signed-off-by: Samuel Ortiz -
Check inuse variable before trying to access twl_map to prevent
dereferencing of uninitialized variable.Signed-off-by: Ilya Yanok
Cc: stable@kernel.org
Signed-off-by: Samuel Ortiz -
Include linux/module.h to fix below build error:
CC drivers/mfd/ab5500-debugfs.o
drivers/mfd/ab5500-debugfs.c:571: error: 'THIS_MODULE' undeclared here (not in a function)
make[2]: *** [drivers/mfd/ab5500-debugfs.o] Error 1Signed-off-by: Axel Lin
Acked-by: Linus Walleij
Signed-off-by: Samuel Ortiz -
This didn't go in as part of the original MFD patch for WM1811 due to
cross tree issues.Signed-off-by: Mark Brown
Signed-off-by: Samuel Ortiz -
It does not make sense to write new value only when all the bit_mask
bits are zero.
We need to write new value if the bit mask fields of new value is
not equal to old value.Signed-off-by: Axel Lin
Signed-off-by: Samuel Ortiz -
It does not make sense to write new value only when all the bit_mask
bits are zero.
We need to write new value if the bit mask fields of new value is
not equal to old value.Signed-off-by: Axel Lin
Signed-off-by: Samuel Ortiz -
Current code checks if all the bit_mask bits are all zero is wrong.
We need to write new value if the bit mask fields of new value is
not equal to old value.Signed-off-by: Axel Lin
Acked-by: Michael Hennerich
Signed-off-by: Samuel Ortiz -
Signed-off-by: Axel Lin
Acked-by: Eric Miao
Signed-off-by: Samuel Ortiz
20 Dec, 2011
4 commits
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You didn't mean this to be a bool.
Signed-off-by: Rusty Russell
Acked-by: Tony Olech
Cc:
Signed-off-by: Chris Ball -
When SDIO runtime PM was originally introduced, we immediately faced
two regressions with two different chipsets, and in response decided
not to enable it by default.With the recent work on the 8686 we hoped we found all the gotchas,
so 08da834 did make sense (at least experimentally).Unfortunately we now see that some setups out there still refuse to
work when SDIO runtime PM is enabled by default (see
http://www.spinics.net/lists/linux-mmc/msg11161.html), and obviously
we can't live with these kind of regressions.This reverts commit 08da834a24312157f512224691ad1fddd11c1073.
Signed-off-by: Ohad Ben-Cohen
Cc: Daniel Drake
Signed-off-by: Chris Ball -
Drop the "state" argument from sdhci_suspend_host. Its only user is the
PCI glue; this allows to move all SDHCI glues to use dev_pm_ops instead.Signed-off-by: Manuel Lauss
Acked-by: Adrian Hunter
Signed-off-by: Chris Ball -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/qib: Correct sense on freectxts increment and decrement
RDMA/cma: Verify private data length
IB/mlx4: Fix shutdown crash accessing a non-existent bitmap
