]> err.no Git - linux-2.6/log
linux-2.6
18 years ago[POWERPC] Use H_CEDE on non-SMT
Jake Moilanen [Tue, 25 Jul 2006 20:11:47 +0000 (15:11 -0500)]
[POWERPC] Use H_CEDE on non-SMT

On the JS21 systems, they have the SPLPAR hypertas set, but are not SMT
capable.  So, they are not making the H_CEDE call.  This is causing the
hypervisor to have to queue up work for the hdecr, taking an excessive
amount of time in maintenance code, and causing jitter on the box.

Making the H_CEDE call helps alleviate that problem.

Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] force 64bit mode in fwnmi handlers to workaround firmware bugs
Olaf Hering [Wed, 19 Jul 2006 08:34:05 +0000 (10:34 +0200)]
[POWERPC] force 64bit mode in fwnmi handlers to workaround firmware bugs

The firmware of POWER4 and JS20 systems does not switch the cpu to 64bit
mode when the registered system_reset and machine_check handlers get called.
If a 32bit process runs on that cpu at the time of the event, the cpu
remains in 32bit mode. xmon and kdump can not deal with it, the result is
an error like 'Bad kernel stack pointer fff2aad0 at 3200'.
xmon just loses some register info, but booting the kdump kernel usually fails.

Both handlers are not hot paths.  Duplicate the EXCEPTION_PROLOG_PSERIES macro
and add two instructions to switch to 64bit:

 li     r11,5;
 rldimi r10,r11,61,0;

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] PMAC_APM_EMU should depend on ADB_PMU
Danny van Dyk [Tue, 11 Jul 2006 21:25:28 +0000 (22:25 +0100)]
[POWERPC] PMAC_APM_EMU should depend on ADB_PMU

This patch fixes undefined refereneces to pmu_ symbols on 2.6.17.

Signed-Off-By: Danny van Dyk <kugelfang@gentoo.org>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Fix new interrupt code (MPIC detection)
Segher Boessenkool [Sat, 8 Jul 2006 00:37:20 +0000 (02:37 +0200)]
[POWERPC] Fix new interrupt code (MPIC detection)

As the code comment already says, the Maple device-tree is incorrect here;
make the Linux code detect the correct thing, too.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Fix new interrupt code (MPIC endianness)
Segher Boessenkool [Sat, 8 Jul 2006 00:37:23 +0000 (02:37 +0200)]
[POWERPC] Fix new interrupt code (MPIC endianness)

All U3/U4 based systems are big-endian, not all express it in their
device trees.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Add cpufreq support for Xserve G5
Benjamin Herrenschmidt [Mon, 10 Jul 2006 06:44:54 +0000 (16:44 +1000)]
[POWERPC] Add cpufreq support for Xserve G5

The Xserve G5 are capable of frequency switching like other desktop G5s.
This enables it. It also fix a Kconfig issue which prevented from
building the G5 cpufreq support if CONFIG_PMAC_SMU was not set (the
first version of that driver only worked with SMU based macs, but this
isn't the case anymore).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Xserve G5 thermal control fixes
Benjamin Herrenschmidt [Thu, 6 Jul 2006 08:03:06 +0000 (18:03 +1000)]
[POWERPC] Xserve G5 thermal control fixes

The thermal control for the Xserve G5s had a few issues. For one, the
way to program the RPM fans speeds into the FCU is different between it
and the desktop models, which I didn't figure out until recently, and it
was missing a control loop for the slots fan, running it too fast.  Both
of those problems were causing the machine to be much more noisy than
necessary.  This patch also changes the fixed value of the slots fan for
desktop G5s to 40% instead of 50%.  It seems to still have a pretty good
airflow that way and is much less noisy.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Fix mem= handling when the memory limit is > RMO size
Michael Ellerman [Tue, 4 Jul 2006 07:13:23 +0000 (17:13 +1000)]
[POWERPC] Fix mem= handling when the memory limit is > RMO size

There's a bug in my cleaned up mem= handling, if the memory limit is
larger than the RMO size we'll erroneously enlarge the RMO size.

Fix is to only change the RMO size if the memory limit is less than
the current RMO value.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] More offb/bootx fixes
Benjamin Herrenschmidt [Tue, 4 Jul 2006 07:07:18 +0000 (17:07 +1000)]
[POWERPC] More offb/bootx fixes

There were still some issues with offb when BootX doesn't provide a
proper display node, this fixes them.  This also re-instates the
palette hacks that were disabled a couple of kernel versions ago when
I converted to the new OF parsing, and shuffles some functions around
to avoid prototypes.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Fix legacy_serial.c error handling on 32 bits
Benjamin Herrenschmidt [Tue, 4 Jul 2006 04:14:07 +0000 (14:14 +1000)]
[POWERPC] Fix legacy_serial.c error handling on 32 bits

The code in legacy_serial.c wouldn't properly compare OF translation
results against OF_BAD_ADDR as it's using a phys_addr_t which is 32
bits on some 32-bit powerpc platforms. This fixes it by always using
a u64 which is what is returned by the OF parsing routines. It also
makes translation failure harmless for ISA serial ports.  If they
can't translate, we can't use the UART early, but we can still let the
8250 driver use it later on by using IO port accessors.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Fix default clock for udbg_16550
Benjamin Herrenschmidt [Tue, 4 Jul 2006 04:11:23 +0000 (14:11 +1000)]
[POWERPC] Fix default clock for udbg_16550

This patch makes it possible to provide 0 as the clock value for
udbg_16550, making it default to the standard 1.8432Mhz clock

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Fix non-MPIC CHRPs with CONFIG_SMP set
Benjamin Herrenschmidt [Tue, 4 Jul 2006 04:09:36 +0000 (14:09 +1000)]
[POWERPC] Fix non-MPIC CHRPs with CONFIG_SMP set

Pseudo-CHRP machines like Pegasos without an MPIC would crash at boot if
CONFIG_SMP was set because the "smp_ops" pointer was set to MPIC related
ops unconditionally. This patch makes it NULL on machines that don't
support SMP and provides proper default behaviour in the callers when
smp_ops is NULL.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Fix 32 bits warning in prom_init.c
Benjamin Herrenschmidt [Tue, 4 Jul 2006 04:07:42 +0000 (14:07 +1000)]
[POWERPC] Fix 32 bits warning in prom_init.c

A warning is hurting my eyes when building 32 bits kernels

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] Workaround Pegasos incorrect ISA "ranges"
Benjamin Herrenschmidt [Tue, 4 Jul 2006 04:06:29 +0000 (14:06 +1000)]
[POWERPC] Workaround Pegasos incorrect ISA "ranges"

The Pegasos firmware doesn't create a valid "ranges" property for the
ISA bridge, thus causing translation of ISA addresses and IO ports to
fail. This fixes it, thus re-enabling proper early serial console to
work on Pegasos.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[POWERPC] fix up front-LED Kconfig
Johannes Berg [Mon, 3 Jul 2006 12:28:14 +0000 (14:28 +0200)]
[POWERPC] fix up front-LED Kconfig

This patch fixes the front-LED Kconfig issues I introduced while
creating it. Apparently having a dependency isn't enough to have the
select not evaluated or something like that.

The patch also changes the default configuration for pmac32 select the
default for the LED to be the IDE trigger. While I was at it, I
completely updated the defconfig and also added snd-aoa to it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
18 years ago[NET]: Correct dev_alloc_skb kerneldoc
Christoph Hellwig [Mon, 24 Jul 2006 22:31:14 +0000 (15:31 -0700)]
[NET]: Correct dev_alloc_skb kerneldoc

dev_alloc_skb is designated for RX descriptors, not TX.  (Some drivers
use it for the latter anyway, but that's a different story)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[NET]: Remove CONFIG_HAVE_ARCH_DEV_ALLOC_SKB
Christoph Hellwig [Mon, 24 Jul 2006 22:30:28 +0000 (15:30 -0700)]
[NET]: Remove CONFIG_HAVE_ARCH_DEV_ALLOC_SKB

skbuff.h has an #ifndef CONFIG_HAVE_ARCH_DEV_ALLOC_SKB to allow
architectures to reimplement __dev_alloc_skb.  It's not set on any
architecture and now that we have an architecture-overrideable
NET_SKB_PAD there is not point at all to have one either.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[VLAN]: Fix link state propagation
Stefan Rompf [Mon, 24 Jul 2006 20:52:13 +0000 (13:52 -0700)]
[VLAN]: Fix link state propagation

When the queue of the underlying device is stopped at initialization time
or the device is marked "not present", the state will be propagated to the
vlan device and never change. Based on an analysis by Patrick McHardy.

Signed-off-by: Stefan Rompf <stefan@loplof.de>
ACKed-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[IPV6] xfrm6_tunnel: Delete debugging code.
David S. Miller [Mon, 24 Jul 2006 20:49:06 +0000 (13:49 -0700)]
[IPV6] xfrm6_tunnel: Delete debugging code.

It doesn't compile, and it's dubious in several regards:

1) is enabled by non-Kconfig controlled CONFIG_* value
   (noted by Randy Dunlap)
2) XFRM6_TUNNEL_SPI_MAGIC is defined after it's first use
3) the debugging messages print object pointer addresses
   which have no meaning without context

So let's just get rid of it.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[Bluetooth] Enable SCO support for Broadcom HID proxy dongle
Marcel Holtmann [Tue, 18 Jul 2006 16:32:33 +0000 (18:32 +0200)]
[Bluetooth] Enable SCO support for Broadcom HID proxy dongle

The Broadcom dongles with HID proxy support actually support SCO over
HCI if the SCO buffer size values are corrected. So instead of disabling
the SCO support, mark this dongle with the quirk for the Bluetooth core
to correct the wrong buffer size values.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
18 years ago[Bluetooth] Add quirk for another broken RTX Telecom based dongle
Marcel Holtmann [Tue, 18 Jul 2006 16:04:59 +0000 (18:04 +0200)]
[Bluetooth] Add quirk for another broken RTX Telecom based dongle

This patch disables the ISOC transfers for another broken RTX Telecom
based USB dongle. Starting the USB ISOC transfers only ends in a burst
of error messages for invalid SCO packets on connection handle 0.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
18 years ago[Bluetooth] Correct SCO buffer size for Belkin devices
Marcel Holtmann [Tue, 18 Jul 2006 15:47:40 +0000 (17:47 +0200)]
[Bluetooth] Correct SCO buffer size for Belkin devices

The Belkin F8T012 and F8T013 devices are both based on a Bluetooth chip
from Broadcom and their SCO buffer size values are wrong. The Bluetooth
core should correct these values.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
18 years ago[Bluetooth] Correct SCO buffer size for another Broadcom chip
Marcel Holtmann [Fri, 14 Jul 2006 14:01:52 +0000 (16:01 +0200)]
[Bluetooth] Correct SCO buffer size for another Broadcom chip

The SCO buffer size values on IBM/Lenovo ThinkPad laptops with a
Bluetooth chip from Broadcom are wrong. The USB Bluetooth driver
has to set a quirk to correct the SCO buffer size values.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
18 years ago[Bluetooth] Correct RFCOMM channel MTU for broken implementations
Marcel Holtmann [Fri, 14 Jul 2006 09:42:12 +0000 (11:42 +0200)]
[Bluetooth] Correct RFCOMM channel MTU for broken implementations

Some Bluetooth RFCOMM implementations try to negotiate a bigger channel
MTU than we can support for a particular session. The maximum MTU for
a RFCOMM session is limited through the L2CAP layer. So if the other
side proposes a channel MTU that is bigger than the underlying L2CAP
MTU, we should reduce it to the L2CAP MTU of the session minus five
bytes for the RFCOMM headers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
18 years ago[PKT_SCHED]: Fix regression in PSCHED_TADD{,2}.
Guillaume Chazarain [Mon, 24 Jul 2006 06:37:24 +0000 (23:37 -0700)]
[PKT_SCHED]: Fix regression in PSCHED_TADD{,2}.

In PSCHED_TADD and PSCHED_TADD2, if delta is less than tv.tv_usec (so,
less than USEC_PER_SEC too) then tv_res will be smaller than tv. The
affectation "(tv_res).tv_usec = __delta;" is wrong.  The fix is to
revert to the original code before
4ee303dfeac6451b402e3d8512723d3a0f861857 and change the 'if' in
'while'.

[Shuya MAEDA: "while (__delta >= USEC_PER_SEC){ ... }" instead of
"while (__delta > USEC_PER_SEC){ ... }"]

Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[DCCP]: Fix default sequence window size
Ian McDonald [Mon, 24 Jul 2006 06:33:28 +0000 (23:33 -0700)]
[DCCP]: Fix default sequence window size

When using the default sequence window size (100) I got the following in
my logs:

Jun 22 14:24:09 localhost kernel: [ 1492.114775] DCCP: Step 6 failed for
DATA packet, (LSWL(6279674225) <= P.seqno(6279674749) <=
S.SWH(6279674324)) and (P.ackno doesn't exist or LAWL(18798206530) <=
P.ackno(1125899906842620) <= S.AWH(18798206548), sending SYNC...
Jun 22 14:24:09 localhost kernel: [ 1492.115147] DCCP: Step 6 failed for
DATA packet, (LSWL(6279674225) <= P.seqno(6279674750) <=
S.SWH(6279674324)) and (P.ackno doesn't exist or LAWL(18798206530) <=
P.ackno(1125899906842620) <= S.AWH(18798206549), sending SYNC...

I went to alter the default sysctl and it didn't take for new sockets.
Below patch fixes this.

I think the default is too low but it is what the DCCP spec specifies.

As a side effect of this my rx speed using iperf goes from about 2.8 Mbits/sec
to 3.5. This is still far too slow but it is a step in the right direction.

Compile tested only for IPv6 but not particularly complex change.

Signed off by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years agoIB/mthca: Initialize max_cmds before debug code prints it
Roland Dreier [Mon, 24 Jul 2006 16:36:50 +0000 (09:36 -0700)]
IB/mthca: Initialize max_cmds before debug code prints it

Read the max_cmds value from the response to the QUERY_FW command
before printing out the value, so that the real value goes into the
debug output.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/ipoib: Fix packet loss after hardware address update
Michael S. Tsirkin [Wed, 19 Jul 2006 14:44:37 +0000 (17:44 +0300)]
IB/ipoib: Fix packet loss after hardware address update

The neighbour ha field may get updated without destroying the
neighbour.  In this case, the ha field gets out of sync with the
address handle stored in ipoib_neigh->ah, with the result that
the ah field would point to an incorrect path, resulting in all
packets being lost.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/ipoib: Fix oops with ipoib_debug_mcast set
Or Gerlitz [Mon, 24 Jul 2006 07:42:00 +0000 (10:42 +0300)]
IB/ipoib: Fix oops with ipoib_debug_mcast set

Need to set mcast->ah before debug code dereferences it.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/mad: Validate MADs for spec compliance
Sean Hefty [Thu, 20 Jul 2006 08:25:50 +0000 (11:25 +0300)]
IB/mad: Validate MADs for spec compliance

Validate MADs sent by userspace clients for spec compliance with
C13-18.1.1 (prevent duplicate requests and responses sent on the
same port).  Without this, RMPP transactions get aborted because
of duplicate packets.

This patch is similar to that provided by Jack Morgenstein.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/ipath: ipath_skip_sge() can break if num_sge > 1
Ralph Campbell [Tue, 18 Jul 2006 01:21:24 +0000 (18:21 -0700)]
IB/ipath: ipath_skip_sge() can break if num_sge > 1

ipath_skip_sge() doesn't exactly duplicate the side effects of
ipath_copy_sge() if num_sge > 1 since it doesn't decrement ss->num_sge.
This could result in the sg_list being accessed out of bounds.
Since ipath_skip_sge() is almost always called with num_sge == 1,
the original "optimization" is almost never used.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/ipath: Fix ib_ipath driver to work with SRP
Ralph Campbell [Tue, 18 Jul 2006 01:19:54 +0000 (18:19 -0700)]
IB/ipath: Fix ib_ipath driver to work with SRP

I am still working on a proposal to remove the phys_to_virt() calls
in the ib_ipath driver.  In the mean time, this patch allows SRP
to work by fixing the R_Key check and conversion from IB address
to kernel virtual address.  It also returns the correct page size
for FMRs.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/ipath: Fix a data corruption
Ralph Campbell [Tue, 18 Jul 2006 01:18:36 +0000 (18:18 -0700)]
IB/ipath: Fix a data corruption

This patch fixes a problem where certain error packets are passed
to the InfiniBand layer for processing even though the packet
actually was received with an error.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/mthca: Fix SRQ limit event range check
Dotan Barak [Thu, 13 Jul 2006 08:05:49 +0000 (11:05 +0300)]
IB/mthca: Fix SRQ limit event range check

Mem-free HCAs always keep one spare SRQ WQE, so the SRQ limit cannot
be set beyond srq->max - 1.

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/uverbs: Fix lockdep warnings
Roland Dreier [Sun, 23 Jul 2006 22:16:04 +0000 (15:16 -0700)]
IB/uverbs: Fix lockdep warnings

Lockdep warns because uverbs is trying to take uobj->mutex when it
already holds that lock.  This is because there are really multiple
types of uobjs even though all of their locks are initialized in
common code.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years agoIB/uverbs: Fix unlocking in error paths
Michael S. Tsirkin [Mon, 17 Jul 2006 15:20:51 +0000 (18:20 +0300)]
IB/uverbs: Fix unlocking in error paths

ib_uverbs_create_ah() and ib_uverbs_create_srq() did not release the
PD's read lock in their error paths, which lead to deadlock when
destroying the PD.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
18 years ago[PATCH] Cpuset: fix ABBA deadlock with cpu hotplug lock
Paul Jackson [Sun, 23 Jul 2006 18:36:08 +0000 (11:36 -0700)]
[PATCH] Cpuset: fix ABBA deadlock with cpu hotplug lock

Fix ABBA deadlock between lock_cpu_hotplug() and the cpuset
callback_mutex lock.

It only happens on cpu_exclusive cpusets, due to the dynamic
sched domain code trying to take the cpu hotplug lock inside
the cpuset callback_mutex lock.

This bug has apparently been here for several months, but didn't
get hit until the right customer load on a large system.

This fix appears right from inspection, but it will take a few
more days running it on that customers workload to be confident
we nailed it.  We don't have any other reproducible test case.

The cpu_hotplug_lock() tends to cover large runs of code.
The other places that hold both that lock and the cpuset callback
mutex lock always nest the cpuset lock inside the hotplug lock.
This place tries to do the reverse, risking an ABBA deadlock.

This is in the cpuset_rmdir() code, where we:
  * take the callback_mutex lock
  * mark the cpuset CS_REMOVED
  * call update_cpu_domains for cpu_exclusive cpusets
  * in that call, take the cpu_hotplug lock if the
    cpuset is marked for removal.

Thanks to Jack Steiner for identifying this deadlock.

The fix is to tear down the dynamic sched domain before we grab
the cpuset callback_mutex lock.  This way, the two locks are
serialized, with the hotplug lock taken and released before
trying for the cpuset lock.

I suspect that this bug was introduced when I changed the
cpuset locking from one lock to two.  The dynamic sched domain
dependency on cpu_exclusive cpusets and its hotplug hooks were
added to this code earlier, when cpusets had only a single lock.
It may well have been fine then.

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agocpu hotplug: simplify and hopefully fix locking
Linus Torvalds [Sun, 23 Jul 2006 19:12:16 +0000 (12:12 -0700)]
cpu hotplug: simplify and hopefully fix locking

The CPU hotplug locking was quite messy, with a recursive lock to
handle the fact that both the actual up/down sequence wanted to
protect itself from being re-entered, but the callbacks that it
called also tended to want to protect themselves from CPU events.

This splits the lock into two (one to serialize the whole hotplug
sequence, the other to protect against the CPU present bitmaps
changing). The latter still allows recursive usage because some
subsystems (ondemand policy for cpufreq at least) had already gotten
too used to the lax locking, but the locking mistakes are hopefully
now less fundamental, and we now warn about recursive lock usage
when we see it, in the hope that it can be fixed.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[cpufreq] ondemand: make shutdown sequence more robust
Linus Torvalds [Sun, 23 Jul 2006 19:05:00 +0000 (12:05 -0700)]
[cpufreq] ondemand: make shutdown sequence more robust

Shutting down the ondemand policy was fraught with potential
problems, causing issues for SMP suspend (which wants to hot-
unplug) all but the last CPU.

This should fix at least the worst problems (divide-by-zero
and infinite wait for the workqueue to shut down).

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 21 Jul 2006 23:44:45 +0000 (16:44 -0700)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  [TIPC]: Removing useless casts
  [IPV4]: Fix nexthop realm dumping for multipath routes
  [DUMMY]: Avoid an oops when dummy_init_one() failed
  [IFB] After ifb_init_one() failed, i is increased. Decrease
  [NET]: Fix reversed error test in netif_tx_trylock
  [MAINTAINERS]: Mark LAPB as Oprhan.
  [NET]: Conversions from kmalloc+memset to k(z|c)alloc.
  [NET]: sun happymeal, little pci cleanup
  [IrDA]: Use alloc_skb() in IrDA TX path
  [I/OAT]: Remove pci_module_init() from Intel I/OAT DMA engine
  [I/OAT]: net/core/user_dma.c should #include <net/netdma.h>
  [SCTP]: ADDIP: Don't use an address as source until it is ASCONF-ACKed
  [SCTP]: Set chunk->data_accepted only if we are going to accept it.
  [SCTP]: Verify all the paths to a peer via heartbeat before using them.
  [SCTP]: Unhash the endpoint in sctp_endpoint_free().
  [SCTP]: Check for NULL arg to sctp_bucket_destroy().
  [PKT_SCHED] netem: Fix slab corruption with netem (2nd try)
  [WAN]: Converted synclink drivers to use netif_carrier_*()
  [WAN]: Cosmetic changes to N2 and C101 drivers
  [WAN]: Added missing netif_dormant_off() to generic HDLC
  ...

18 years ago[TIPC]: Removing useless casts
Panagiotis Issaris [Fri, 21 Jul 2006 22:52:20 +0000 (15:52 -0700)]
[TIPC]: Removing useless casts

Removing useless casts

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[IPV4]: Fix nexthop realm dumping for multipath routes
Patrick McHardy [Fri, 21 Jul 2006 22:09:55 +0000 (15:09 -0700)]
[IPV4]: Fix nexthop realm dumping for multipath routes

Routing realms exist per nexthop, but are only returned to userspace
for the first nexthop. This is due to the fact that iproute2 only
allows to set the realm for the first nexthop and the kernel refuses
multipath routes where only a single realm is present.

Dump all realms for multipath routes to enable iproute to correctly
display them.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[DUMMY]: Avoid an oops when dummy_init_one() failed
Nicolas Dichtel [Fri, 21 Jul 2006 22:09:07 +0000 (15:09 -0700)]
[DUMMY]: Avoid an oops when dummy_init_one() failed

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[IFB] After ifb_init_one() failed, i is increased. Decrease
Nicolas Dichtel [Fri, 21 Jul 2006 21:56:02 +0000 (14:56 -0700)]
[IFB] After ifb_init_one() failed, i is increased. Decrease

It before entering in the loop for freeing the other ifb devices.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[NET]: Fix reversed error test in netif_tx_trylock
Herbert Xu [Fri, 21 Jul 2006 21:55:38 +0000 (14:55 -0700)]
[NET]: Fix reversed error test in netif_tx_trylock

A non-zero return value indicates success from spin_trylock,
not error.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[MAINTAINERS]: Mark LAPB as Oprhan.
David S. Miller [Fri, 21 Jul 2006 21:55:17 +0000 (14:55 -0700)]
[MAINTAINERS]: Mark LAPB as Oprhan.

Maintainer email not longer exists.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[NET]: Conversions from kmalloc+memset to k(z|c)alloc.
Panagiotis Issaris [Fri, 21 Jul 2006 21:51:30 +0000 (14:51 -0700)]
[NET]: Conversions from kmalloc+memset to k(z|c)alloc.

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[NET]: sun happymeal, little pci cleanup
Jiri Slaby [Fri, 21 Jul 2006 21:51:02 +0000 (14:51 -0700)]
[NET]: sun happymeal, little pci cleanup

Use pci_register_driver instead of pci_module_init. Use PCI_DEVICE macro.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[IrDA]: Use alloc_skb() in IrDA TX path
Samuel Ortiz [Fri, 21 Jul 2006 21:50:41 +0000 (14:50 -0700)]
[IrDA]: Use alloc_skb() in IrDA TX path

As pointed out by Christoph Hellwig, dev_alloc_skb() is not intended to be
used for allocating TX sk_buff. The IrDA stack was exclusively calling
dev_alloc_skb() on the TX path, and this patch fixes that.

Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[I/OAT]: Remove pci_module_init() from Intel I/OAT DMA engine
Henrik Kretzschmar [Fri, 21 Jul 2006 21:50:13 +0000 (14:50 -0700)]
[I/OAT]: Remove pci_module_init() from Intel I/OAT DMA engine

Changes pci_module_init() to pci_register_driver().

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[I/OAT]: net/core/user_dma.c should #include <net/netdma.h>
Adrian Bunk [Fri, 21 Jul 2006 21:49:49 +0000 (14:49 -0700)]
[I/OAT]: net/core/user_dma.c should #include <net/netdma.h>

Every file should #include the headers containing the prototypes for
its global functions.

Especially in cases like this one where gcc can tell us through a
compile error that the prototype was wrong...

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SCTP]: ADDIP: Don't use an address as source until it is ASCONF-ACKed
Sridhar Samudrala [Fri, 21 Jul 2006 21:49:25 +0000 (14:49 -0700)]
[SCTP]: ADDIP: Don't use an address as source until it is ASCONF-ACKed

This implements Rules D1 and D4 of Sec 4.3 in the ADDIP draft.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SCTP]: Set chunk->data_accepted only if we are going to accept it.
Sridhar Samudrala [Fri, 21 Jul 2006 21:49:07 +0000 (14:49 -0700)]
[SCTP]: Set chunk->data_accepted only if we are going to accept it.

Currently there is a code path in sctp_eat_data() where it is possible
to set this flag even when we are dropping this chunk.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SCTP]: Verify all the paths to a peer via heartbeat before using them.
Sridhar Samudrala [Fri, 21 Jul 2006 21:48:50 +0000 (14:48 -0700)]
[SCTP]: Verify all the paths to a peer via heartbeat before using them.

This patch implements Path Initialization procedure as described in
Sec 2.36 of RFC4460.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SCTP]: Unhash the endpoint in sctp_endpoint_free().
Vlad Yasevich [Fri, 21 Jul 2006 21:48:26 +0000 (14:48 -0700)]
[SCTP]: Unhash the endpoint in sctp_endpoint_free().

This prevents a race between the close of a socket and receive of an
incoming packet.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SCTP]: Check for NULL arg to sctp_bucket_destroy().
Sridhar Samudrala [Fri, 21 Jul 2006 21:45:47 +0000 (14:45 -0700)]
[SCTP]: Check for NULL arg to sctp_bucket_destroy().

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[PKT_SCHED] netem: Fix slab corruption with netem (2nd try)
Guillaume Chazarain [Fri, 21 Jul 2006 21:45:25 +0000 (14:45 -0700)]
[PKT_SCHED] netem: Fix slab corruption with netem (2nd try)

CONFIG_DEBUG_SLAB found the following bug:
netem_enqueue() in sch_netem.c gets a pointer inside a slab object:
struct netem_skb_cb *cb = (struct netem_skb_cb *)skb->cb;
But then, the slab object may be freed:
skb = skb_unshare(skb, GFP_ATOMIC)
cb is still pointing inside the freed skb, so here is a patch to
initialize cb later, and make it clear that initializing it sooner
is a bad idea.

[From Stephen Hemminger: leave cb unitialized in order to let gcc
complain in case of use before initialization]

Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[WAN]: Converted synclink drivers to use netif_carrier_*()
Krzysztof Halasa [Fri, 21 Jul 2006 21:44:55 +0000 (14:44 -0700)]
[WAN]: Converted synclink drivers to use netif_carrier_*()

WAN: Converted synclink drivers to use netif_carrier_*() instead
of hdlc_set_carrier().

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[WAN]: Cosmetic changes to N2 and C101 drivers
Krzysztof Halasa [Fri, 21 Jul 2006 21:41:36 +0000 (14:41 -0700)]
[WAN]: Cosmetic changes to N2 and C101 drivers

WAN: Cosmetic changes to N2 and C101 drivers

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[WAN]: Added missing netif_dormant_off() to generic HDLC
Krzysztof Halasa [Fri, 21 Jul 2006 21:41:01 +0000 (14:41 -0700)]
[WAN]: Added missing netif_dormant_off() to generic HDLC

WAN: Fixed a problem with PPP/raw HDLC/X.25 protocols not doing
netif_dormant_off() at startup.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[IPV4]: Get rid of redundant IPCB->opts initialisation
Herbert Xu [Fri, 21 Jul 2006 21:29:53 +0000 (14:29 -0700)]
[IPV4]: Get rid of redundant IPCB->opts initialisation

Now that we always zero the IPCB->opts in ip_rcv, it is no longer
necessary to do so before calling netif_rx for tunneled packets.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC64]: Update defconfig.
David S. Miller [Fri, 21 Jul 2006 21:19:45 +0000 (14:19 -0700)]
[SPARC64]: Update defconfig.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC]: Fix length parameter verification in sys_getdomainname().
David S. Miller [Fri, 21 Jul 2006 21:12:39 +0000 (14:12 -0700)]
[SPARC]: Fix length parameter verification in sys_getdomainname().

Found by scrashme.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SERIAL] sunzilog: Fix instance enumeration.
David S. Miller [Thu, 20 Jul 2006 05:55:08 +0000 (22:55 -0700)]
[SERIAL] sunzilog: Fix instance enumeration.

Just do a linear enumeration so that we handle sun4d systems
correctly.  As a consequence, eliminate the hard coded keyboard and
mouse channel line values, use the CONS_{KEYB,MS} flags instead.

Also, report the keyboard/mouse Zilog channels just like the uart ones
do.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SERIAL] sunzilog: Remove duplicate IRQ registry in zs_probe().
David S. Miller [Thu, 20 Jul 2006 04:04:04 +0000 (21:04 -0700)]
[SERIAL] sunzilog: Remove duplicate IRQ registry in zs_probe().

We do it now in sunzilog_init() after all devices have been
probed.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC]: Get sun4d SMP building again.
Raymond Burns [Tue, 18 Jul 2006 04:57:09 +0000 (21:57 -0700)]
[SPARC]: Get sun4d SMP building again.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC]: Do not call sun4m_irq_rotate on sun4d.
Raymond Burns [Tue, 18 Jul 2006 04:50:55 +0000 (21:50 -0700)]
[SPARC]: Do not call sun4m_irq_rotate on sun4d.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC]: Simplify and correct __cpu_find_by()
David S. Miller [Tue, 18 Jul 2006 04:49:58 +0000 (21:49 -0700)]
[SPARC]: Simplify and correct __cpu_find_by()

By using for_each_node_by_type().

Also, correct a spurioud test in check_cpu_node() on sparc64.
It is only called with nodes that have device_type "cpu".

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC]: Initialize iounit spinlock in iounit_init().
Raymond Burns [Tue, 18 Jul 2006 04:40:27 +0000 (21:40 -0700)]
[SPARC]: Initialize iounit spinlock in iounit_init().

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC]: Fix initialization of sun4d SBUS interrupts.
David S. Miller [Tue, 18 Jul 2006 04:39:09 +0000 (21:39 -0700)]
[SPARC]: Fix initialization of sun4d SBUS interrupts.

1) Explicitly traverse to the root looking for the "sbi".
2) Grab the "board#" property from the sbi's parent and
   verify that this parent is an "io-unit" node.
3) Skip IRQ initialization when device lacks "reg" property.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SERIAL] sunzilog: Register IRQ after all devices have been probed.
David S. Miller [Tue, 18 Jul 2006 04:07:17 +0000 (21:07 -0700)]
[SERIAL] sunzilog: Register IRQ after all devices have been probed.

Otherwise we will deref half-initialized channel pointers
and crash in the interrupt handler.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC] sbus: Make sure sbus nodes are named uniquely.
David S. Miller [Tue, 18 Jul 2006 04:06:15 +0000 (21:06 -0700)]
[SPARC] sbus: Make sure sbus nodes are named uniquely.

Just name them "sbus%d" otherwise on sun4d we try to register
multiple entries named "sbi@0,0" which does not work.

Based upon a report from Raymond Burns.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC]: Fix property name acquisition in prom.c
Bob Breuer [Tue, 18 Jul 2006 00:05:56 +0000 (17:05 -0700)]
[SPARC]: Fix property name acquisition in prom.c

On sparc32 the prom_{first,next}prop() interfaces work
a little differently.  The buffer argument is ignored on
sparc32 and the firmware just returns a raw pointer to
the property name.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SERIAL] sunsab: Get line numbers and table sizing correct.
David S. Miller [Mon, 17 Jul 2006 23:40:26 +0000 (16:40 -0700)]
[SERIAL] sunsab: Get line numbers and table sizing correct.

Table sizing code should look for "se" not "su" nodes.

The chip at the lower address should get the first index.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC64] Fix sunsab ports ordering
Marc Zyngier [Mon, 17 Jul 2006 22:53:32 +0000 (15:53 -0700)]
[SPARC64] Fix sunsab ports ordering

Register second SAB port before the first one, as serial A is wired to
it, and expected to appear as ttyS0.

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC]: Kill prom_getname, unused and not implemented properly.
David S. Miller [Mon, 17 Jul 2006 05:19:40 +0000 (22:19 -0700)]
[SPARC]: Kill prom_getname, unused and not implemented properly.

The m68k port's sun3 asm/oplib.h had a stray reference too, so I
killed that off as well.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC64]: Fix more of_device layer IRQ bugs, and correct PROMREG_MAX.
David S. Miller [Mon, 17 Jul 2006 05:10:44 +0000 (22:10 -0700)]
[SPARC64]: Fix more of_device layer IRQ bugs, and correct PROMREG_MAX.

Sabre and Psycho PCI controllers can have partial interrupt-map
properties, meaning that on-board devices don't match up to any
entries.  Instead, they are fully specified from the beginning and
we should pass them directly to the IRQ translator as-is.

Also, fill in the necessary translator slots for the "graphics"
and "expansion UPA" interrupts on Sabre, Psycho, and SYSIO SBUS.

Increase PROMREG_MAX to 24, as seen on SUNW,ffb devices.

Finally, prevent accidentally writing past the end of the of_device
struct resource[] and irqs[] arrays.  Spit out a log message when
we ignore some entries because there are too many of them.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
Linus Torvalds [Fri, 21 Jul 2006 19:04:53 +0000 (12:04 -0700)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (38 commits)
  [SCSI] More buffer->request_buffer changes
  [SCSI] mptfusion: bump version to 3.04.01
  [SCSI] mptfusion: misc fix's
  [SCSI] mptfusion: firmware download boot fix's
  [SCSI] mptfusion: task abort fix's
  [SCSI] mptfusion: sas nexus loss support
  [SCSI] mptfusion: sas loginfo update
  [SCSI] mptfusion: mptctl panic when loading
  [SCSI] mptfusion: sas enclosures with smart drive
  [SCSI] NCR_D700: misc fixes (section and argument ordering)
  [SCSI] scsi_debug: must_check fixes
  [SCSI] scsi_transport_sas: kill the use of channel
  [SCSI] scsi_transport_sas: add expander backlink
  [SCSI] hide EH backup data outside the scsi_cmnd
  [SCSI] ibmvscsi: handle inactive SCSI target during probe
  [SCSI] ibmvscsi: allocate lpevents for ibmvscsi on iseries
  [SCSI] aic7[9x]xx: Remove last vestiges of reverse_scan
  [SCSI] aha152x: stop poking at saved scsi_cmnd members
  [SCSI] st.c: Improve sense output
  [SCSI] lpfc 8.1.7: Change version number to 8.1.7
  ...

18 years agoMerge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Fri, 21 Jul 2006 19:03:57 +0000 (12:03 -0700)]
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] sysfs_create_xxx return values.
  [S390] .align 4096 statements in head.S
  [S390] get_clock inline assembly.
  [S390] channel measurement interval display.
  [S390] xpram module parameter parsing - take 2.
  [S390] Fix gcc warning about unused return values.

18 years agoMerge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
Linus Torvalds [Fri, 21 Jul 2006 19:03:32 +0000 (12:03 -0700)]
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
  [PATCH] spidernet: rework tx queue handling
  [PATCH] spidernet: bug fix for init code
  [PATCH] sky2: NAPI poll fix
  [NET] ethtool: fix oops by testing correct struct member
  e1000: bump version to 7.1.9-k4
  e1000: fix panic on large frame receive when mtu=default
  e1000: remove CRC bytes from measured packet length
  e1000: Redo netpoll fix to address community concerns

18 years ago[S390] sysfs_create_xxx return values.
Heiko Carstens [Tue, 18 Jul 2006 11:46:58 +0000 (13:46 +0200)]
[S390] sysfs_create_xxx return values.

Take return values of sysfs_create_group & friends into account.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
18 years ago[S390] .align 4096 statements in head.S
Heiko Carstens [Tue, 18 Jul 2006 11:44:57 +0000 (13:44 +0200)]
[S390] .align 4096 statements in head.S

SLES9 binutils don't like .align 4096 statements in head.S. Work around this
by using .org statements.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
18 years ago[PATCH] spidernet: rework tx queue handling
Jens Osterkamp [Thu, 13 Jul 2006 09:54:08 +0000 (11:54 +0200)]
[PATCH] spidernet: rework tx queue handling

With this patch TX queue descriptors are not chained per default any more.
The pointer to next descriptor is set only when next descriptor is prepaired
for transfer. Also the mechanism of checking wether Spider is ready has been
changed: it checks not for CARDOWNED flag in status of previous descriptor
but for a TXDMAENABLED flag in Spider's register.

Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years ago[PATCH] spidernet: bug fix for init code
Jens Osterkamp [Thu, 13 Jul 2006 09:54:23 +0000 (11:54 +0200)]
[PATCH] spidernet: bug fix for init code

We want to intitialize addr instead of data register first.

Signed-off-by: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years ago[PATCH] sky2: NAPI poll fix
Stephen Hemminger [Mon, 17 Jul 2006 13:54:34 +0000 (09:54 -0400)]
[PATCH] sky2: NAPI poll fix

When sky2 driver gets lots of received packets at once, it can get stuck.
The NAPI poll routine gets called back to keep going, but since no IRQ bits
are set it doesn't make progress.

Increase version, since this is serious enough problem that I want to be
able to tell new from old problems.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years agoMerge branch 'upstream-fixes-jgarzik' of git://lost.foo-projects.org/~ahkok/git/netde...
Jeff Garzik [Mon, 17 Jul 2006 17:26:52 +0000 (13:26 -0400)]
Merge branch 'upstream-fixes-jgarzik' of git://lost.foo-projects.org/~ahkok/git/netdev-2.6 into upstream-fixes

18 years ago[NET] ethtool: fix oops by testing correct struct member
Jeff Garzik [Mon, 17 Jul 2006 16:54:40 +0000 (12:54 -0400)]
[NET] ethtool: fix oops by testing correct struct member

Noticed by Willy Tarreau.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years ago[S390] get_clock inline assembly.
Andreas Krebbel [Mon, 17 Jul 2006 14:09:42 +0000 (16:09 +0200)]
[S390] get_clock inline assembly.

Add missing volatile to the get_clock / get_cycles inline assemblies
to avoid that consecutive calls get optimized away.

Signed-off-by: Andreas Krebbel <krebbel1@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
18 years ago[S390] channel measurement interval display.
Cornelia Huck [Mon, 17 Jul 2006 14:09:28 +0000 (16:09 +0200)]
[S390] channel measurement interval display.

Display avg_sample_interval in nanoseconds, like it is documented.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
18 years ago[S390] xpram module parameter parsing - take 2.
Heiko Carstens [Mon, 17 Jul 2006 14:09:23 +0000 (16:09 +0200)]
[S390] xpram module parameter parsing - take 2.

Don't use memparse since the default size modifier is 'k'.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
18 years ago[S390] Fix gcc warning about unused return values.
Heiko Carstens [Mon, 17 Jul 2006 14:09:18 +0000 (16:09 +0200)]
[S390] Fix gcc warning about unused return values.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
18 years ago[libata] ata_piix: correct 'invalid MAP value' typo-caused error
Jeff Garzik [Tue, 11 Jul 2006 19:28:12 +0000 (15:28 -0400)]
[libata] ata_piix: correct 'invalid MAP value' typo-caused error

Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years ago[libata] ata_piix: minor cleanups noticed in prior patch run
Jeff Garzik [Tue, 11 Jul 2006 17:11:17 +0000 (13:11 -0400)]
[libata] ata_piix: minor cleanups noticed in prior patch run

* delete unused PIIX_FLAG_COMBINED*
* port_enable should be u16 rather than u32

Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years ago[libata] ata_piix: attempt to fix ICH8 support
Jeff Garzik [Tue, 11 Jul 2006 15:57:44 +0000 (11:57 -0400)]
[libata] ata_piix: attempt to fix ICH8 support

Take into account the fact that ICH8 changed the register layout of
the MAP and PCS register bits.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years ago[libata] ata_piix: Consolidate PCS register writing
Jeff Garzik [Tue, 11 Jul 2006 15:48:50 +0000 (11:48 -0400)]
[libata] ata_piix: Consolidate PCS register writing

Prior to this patch, the driver would do this for each port:
read 8-bit PCS
write 8-bit PCS
read 8-bit PCS
write 8-bit PCS

In the field, flaky behavior has been observed related to this register.
In particular, these overzealous register writes can cause misdetection
problems.

Update to do the following once (not once per port) at boot:
read 16-bit PCS
if needs changing,
write 16-bit PCS

And thereafter, we only perform a 'read 16-bit PCS' per port.

This should eliminate all PCS writes in many cases, and be more friendly
in the cases where we do need to enable ports.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years ago[PATCH] ata_piix: add host_set private structure
Tejun Heo [Wed, 28 Jun 2006 16:58:28 +0000 (01:58 +0900)]
[PATCH] ata_piix: add host_set private structure

Add host_set private structure piix_host_priv.  Currently the only
field is ->map which used to be stored directly at
host_set->private_data.  This change allows more host_set private
fields to be added.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years agoLinux 2.6.18-rc2 v2.6.18-rc2
Linus Torvalds [Sat, 15 Jul 2006 21:53:08 +0000 (14:53 -0700)]
Linux 2.6.18-rc2

Finishing up for the kernel summit. Ottawa, here I come.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy...
Linus Torvalds [Sat, 15 Jul 2006 21:43:30 +0000 (14:43 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
  JFS: commit_mutex cleanups

18 years ago[PATCH] UML - fix utsname build breakage
Jeff Dike [Fri, 14 Jul 2006 19:52:23 +0000 (15:52 -0400)]
[PATCH] UML - fix utsname build breakage

Some -mm-only material leaked into a patch destined for mainline, and I didn't
notice.

This was the replacement of system_utsname with utsname() that's required by
the uts namespace patch.  This patch reverts those changes (which are correct
in -mm) so that mainline UML builds again.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agoDon't allow chmod() on the /proc/<pid>/ files
Linus Torvalds [Sat, 15 Jul 2006 19:26:45 +0000 (12:26 -0700)]
Don't allow chmod() on the /proc/<pid>/ files

This just turns off chmod() on the /proc/<pid>/ files, since there is no
good reason to allow it, and had we disallowed it originally, the nasty
/proc race exploit wouldn't have been possible.

The other patches already fixed the problem chmod() could cause, so this
is really just some final mop-up..

This particular version is based off a patch by Eugene and Marcel which
had much better naming than my original equivalent one.

Signed-off-by: Eugene Teo <eteo@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>