Fix minor nits found by cppcheck
[./macintosh/windfarm_pm81.c:760]: (style) Redundant condition. It is safe to deallocate a NULL pointer
[./macintosh/windfarm_pm81.c:762]: (style) Redundant condition. It is safe to deallocate a NULL pointer
Signed-off-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Fix minor nits found by cppcheck
[./arch/powerpc/platforms/powermac/low_i2c.c:594]: (style) The scope of the variable chans can be reduced
[./arch/powerpc/platforms/powermac/low_i2c.c:594]: (style) The scope of the variable i can be reduced
[./arch/powerpc/platforms/powermac/low_i2c.c:1260]: (style) Redundant condition. It is safe to deallocate a NULL pointer
Signed-off-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This avoids storing these registers in memory.
CPU6 errata will still use the old way.
Remove some G2 leftover accesses from 2.4
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Only the swap function cares about the ACCESSED bit in
the pte. Do not waste cycles updateting ACCESSED when swap
is not compiled into the kernel.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Only modules will cause ITLB Misses as we always pin
the first 8MB of kernel memory.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This removes a couple of insn's from the TLB Miss
handlers whithout changing functionality.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Instead of referencing mem_map directly, use pfn_to_page. Otherwise
the kernel crashes when trying to start userspace if ARCH_PFN_OFFSET is
non-zero and CONFIG_BOOKE is not defined
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Add support for H_EM_GET_PARMS hcall that will return data
related to power modes from the platform. Export the data
directly to user space for administrative tools to interpret
and use.
cat /proc/powerpc/lparcfg will export power mode data
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Data address breakpoint exceptions are currently handled along with page-faults
which require interrupts to remain in enabled state. Since exception handling
for data breakpoints aren't pre-empt safe, we handle them separately.
Signed-off-by: K.Prasad <prasad@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
BenH: Added to vio_cmo_dev_attrs as well
Provide a modalias entry for VIO devices in sysfs. I believe
this was another initrd generation bugfix for anaconda.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
We can't just clear the user read permission in book3e pte, because
that will also clear supervisor read permission. This surely isn't
desired. Fix the problem by adding the supervisor read back.
BenH: Slightly simplified the ifdef and applied to ppc64 too
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The mpsc serial driver needx to set the port's device tree element
to register properly.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The maple platform failed to load because it's firmware could not take a
link address of 0x4000000. A new platform type with a link address of
0x400000 had to be created for the maple.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This driver seems to be specific to a "Sky CPU" board for which we
don't appear to have upstream support (or not any more). No Kconfig
file in the kernel ever enables it. So remove it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
genirq: Force MSI irq handlers to run with interrupts disabled
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] hpwdt - fix lower timeout limit
[WATCHDOG] iTCO_wdt: TCO Watchdog patch for additional Intel Cougar Point DeviceIDs
[WATCHDOG] doc: Fix use of WDIOC_SETOPTIONS ioctl.
[WATCHDOG] doc: watchdog simple example: don't fail on fsync()
[WATCHDOG] set max63xx driver as ARM only
[WATCHDOG] powerpc: pika_wdt ident cannot be const
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits)
smc91c92_cs: fix the problem of "Unable to find hardware address"
r8169: clean up my printk uglyness
net: Hook up cxgb4 to Kconfig and Makefile
cxgb4: Add main driver file and driver Makefile
cxgb4: Add remaining driver headers and L2T management
cxgb4: Add packet queues and packet DMA code
cxgb4: Add HW and FW support code
cxgb4: Add register, message, and FW definitions
netlabel: Fix several rcu_dereference() calls used without RCU read locks
bonding: fix potential deadlock in bond_uninit()
net: check the length of the socket address passed to connect(2)
stmmac: add documentation for the driver.
stmmac: fix kconfig for crc32 build error
be2net: fix bug in vlan rx path for big endian architecture
be2net: fix flashing on big endian architectures
be2net: fix a bug in flashing the redboot section
bonding: bond_xmit_roundrobin() fix
drivers/net: Add missing unlock
net: gianfar - align BD ring size console messages
net: gianfar - initialize per-queue statistics
...
copy_to_user() returns the number of bytes left to be copied.
This was a typo from: d82ef020cf "proc: pagemap: Hold mmap_sem during
page walk".
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some BIOSes don't configure HPA during boot but do so while resuming.
This causes harddrives to shrink during resume making libata detach
and reattach them. This can be worked around by unlocking HPA if old
size equals native size.
Add ATA_DFLAG_UNLOCK_HPA so that HPA unlocking can be controlled
per-device and update ata_dev_revalidate() such that it sets
ATA_DFLAG_UNLOCK_HPA and fails with -EIO when the above condition is
detected.
This patch fixes the following bug.
https://bugzilla.kernel.org/show_bug.cgi?id=15396
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Oleksandr Yermolenko <yaa.bta@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Crucial said,
Thank you for contacting us. We know that with our M225 line of SSDs
you sometimes need to disable NCQ (native command queuing) to avoid
just the type of errors you're seeing. Our recommendation for the
M225 is to add libata.force=noncq to your Linux kernel boot options,
under the kernel ATA library option.
I have sent your feedback to the engineers working on the C300, and
asked them to please pass it on to the firmware team. I have been
notified that they are in the process of testing and finalizing a
new firmware version, that you can expect to see released around the
end of April. We’ll keep you posted as to when it will be available
for download.
So, turn off NCQ on the drive w/ the current firmware revision.
Reported in the following bug.
https://bugzilla.kernel.org/show_bug.cgi?id=15573
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: lethalwp@scarlet.be
Reported-by: Luke Macken <lmacken@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
On configurations where IRQ line is shared with a different
controller, spurious IRQs may happen continuously. The message was
put there primarily for debugging anyway. Kill it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
[Novell Bug 581103] HP Watchdog driver has arbitrary (wrong) timeout limits.
Fix the lower timeout limit to a more appropriate value.
Signed-off-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@kernel.org>
d binderman
Joakim Tjernlund
Jason Gunthorpe
Vaidyanathan Srinivasan
K.Prasad
Benjamin Herrenschmidt
Corey Minyard
Linus Torvalds
Dan Carpenter
Tejun Heo
Thomas Mingarelli