Arnaud Ebalard [Tue, 1 Jun 2010 21:35:01 +0000 (21:35 +0000)]
ipv6: Refactor update of IPv6 flowi destination address for srcrt (RH) option
There are more than a dozen occurrences of following code in the
IPv6 stack:
if (opt && opt->srcrt) {
struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt;
ipv6_addr_copy(&final, &fl.fl6_dst);
ipv6_addr_copy(&fl.fl6_dst, rt0->addr);
final_p = &final;
}
Replace those with a helper. Note that the helper overrides final_p
in all cases. This is ok as final_p was previously initialized to
NULL when declared.
Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Finn Thain [Wed, 2 Jun 2010 14:06:34 +0000 (07:06 -0700)]
mac8390: raise error logging priority
Log error conditions using KERN_ERR priority.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wu Fengguang [Sun, 30 May 2010 17:19:53 +0000 (17:19 +0000)]
ipconfig: send host-name in DHCP requests
Normally dhclient can be configured to send the "host-name" option
in DHCP requests to update the client's DNS record. However for an
NFSROOT system, dhclient shall never be called (which may change the
IP addr and therefore lose your root NFS mount connection).
So enable updating the DNS record with kernel parameter
ip=::::$HOST_NAME::dhcp
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Scott McMillan [Wed, 2 Jun 2010 12:53:56 +0000 (05:53 -0700)]
packet_mmap: expose hw packet timestamps to network packet capture utilities
This patch adds a setting, PACKET_TIMESTAMP, to specify the packet
timestamp source that is exported to capture utilities like tcpdump by
packet_mmap.
PACKET_TIMESTAMP accepts the same integer bit field as
SO_TIMESTAMPING. However, only the SOF_TIMESTAMPING_SYS_HARDWARE and
SOF_TIMESTAMPING_RAW_HARDWARE values are currently recognized by
PACKET_TIMESTAMP. SOF_TIMESTAMPING_SYS_HARDWARE takes precedence over
SOF_TIMESTAMPING_RAW_HARDWARE if both bits are set.
If PACKET_TIMESTAMP is not set, a software timestamp generated inside
the networking stack is used (the behavior before this setting was
added).
Signed-off-by: Scott McMillan <scott.a.mcmillan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prarit Bhargava [Wed, 2 Jun 2010 12:51:19 +0000 (05:51 -0700)]
vxge: Fix checkstack warning in vxge_probe()
Linux 2.6.33 reports this checkstack warning:
drivers/net/vxge/vxge-main.c: In function 'vxge_probe':
drivers/net/vxge/vxge-main.c:4409: warning: the frame size of 1028 bytes is larger than 1024 bytes
This warning does not occur in the latest linux-2.6 or linux-next, however,
when I do a 'make -j32 CONFIG_FRAME_WARN=512' instead of 1024 I see
drivers/net/vxge/vxge-main.c: In function ‘vxge_probe’:
drivers/net/vxge/vxge-main.c:4423: warning: the frame size of 1024 bytes is larger than 512 bytes
This patch moves the large vxge_config struct off the stack.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 1 Jun 2010 06:51:19 +0000 (06:51 +0000)]
net: CONFIG_NET_NS reduction
Use read_pnet() and write_pnet() to reduce number of ifdef CONFIG_NET_NS
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Tue, 1 Jun 2010 06:05:46 +0000 (06:05 +0000)]
ppp: eliminate shadowed variable name
Sparse complains about shadowed declaration of skb. So use other
name.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Finn Thain [Tue, 1 Jun 2010 02:18:32 +0000 (02:18 +0000)]
mac8390: propagate error code from request_irq
Use the request_irq() error code as the return value for mac8390_open().
EAGAIN doesn't make sense for Nubus slot IRQs. Only this driver can claim
this IRQ (until the NIC is removed, which means everything is powered
down).
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Mon, 31 May 2010 21:09:33 +0000 (21:09 +0000)]
caif: add newlines after declarations in caif_serial.c
I added newlines after the declarations in caif_serial.c. This is
normal kernel style, although I can't see anywhere it's documented.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Mon, 31 May 2010 21:08:55 +0000 (21:08 +0000)]
caif: remove unneeded variable from caif_net_open()
We don't use the "ser" variable so I've removed it.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 2 Jun 2010 12:09:29 +0000 (05:09 -0700)]
net: add additional lock to qdisc to increase throughput
When many cpus compete for sending frames on a given qdisc, the qdisc
spinlock suffers from very high contention.
The cpu owning __QDISC_STATE_RUNNING bit has same priority to acquire
the lock, and cannot dequeue packets fast enough, since it must wait for
this lock for each dequeued packet.
One solution to this problem is to force all cpus spinning on a second
lock before trying to get the main lock, when/if they see
__QDISC_STATE_RUNNING already set.
The owning cpu then compete with at most one other cpu for the main
lock, allowing for higher dequeueing rate.
Based on a previous patch from Alexander Duyck. I added the heuristic to
avoid the atomic in fast path, and put the new lock far away from the
cache line used by the dequeue worker. Also try to release the busylock
lock as late as possible.
Tests with following script gave a boost from ~50.000 pps to ~600.000
pps on a dual quad core machine (E5450 @3.00GHz), tg3 driver.
(A single netperf flow can reach ~800.000 pps on this platform)
for j in `seq 0 3`; do
for i in `seq 0 7`; do
netperf -H 192.168.0.1 -t UDP_STREAM -l 60 -N -T $i -- -m 6 &
done
done
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Wed, 19 May 2010 03:26:39 +0000 (03:26 +0000)]
bonding: optimize tlb_get_least_loaded_slave
In the worst case, when the first loop breaks an the end of the slave list,
the slave list is iterated through twice. This patch reduces this
function only to one loop. Also makes it simpler.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Wed, 19 May 2010 01:17:41 +0000 (01:17 +0000)]
bonding: remove unused original_flags struct slave member
This is stored but never restored. So remove this as it is useless.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Wed, 19 May 2010 01:14:29 +0000 (01:14 +0000)]
bonding: move dev_addr cpy to bond_enslave
Move the code that copies slave's mac address in case that's the first slave into
bond_enslave. Ifenslave app does this also but that's not a problem. This is
something that should be done in bond_enslave, and it shound not matter from
where is it called.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wolfram Sang [Wed, 2 Jun 2010 10:45:22 +0000 (03:45 -0700)]
net/mpc52xx_phy: Various code cleanups
- don't free bus->irq (obsoleted by
ca816d98170942371535b3e862813b0aba9b7d90)
- don't dispose irqs (should be done in of_mdiobus_register())
- use fec-pointer consistently in transfer()
- use resource_size()
- cosmetic fixes
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Tue, 18 May 2010 05:46:39 +0000 (05:46 +0000)]
bonding: make bonding_store_slaves simpler
This patch makes bonding_store_slaves function nicer and easier to understand.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Tue, 18 May 2010 05:44:53 +0000 (05:44 +0000)]
bonding: remove redundant checks from bonding_store_slaves V2
(it's actually the same as v1)
Remove checks that duplicates similar checks in bond_enslave.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Tue, 18 May 2010 05:42:40 +0000 (05:42 +0000)]
bonding: move slave MTU handling from sysfs V2
V1->V2: corrected res/ret use
For some reason, MTU handling (storing, and restoring) is taking place in
bond_sysfs. The correct place for this code is in bond_enslave, bond_release.
So move it there.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Mon, 17 May 2010 03:49:54 +0000 (03:49 +0000)]
bonding: remove unused variable "found"
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 2 Jun 2010 10:24:13 +0000 (03:24 -0700)]
net: QDISC_STATE_RUNNING dont need atomic bit ops
__QDISC_STATE_RUNNING is always changed while qdisc lock is held.
We can avoid two atomic operations in xmit path, if we move this bit in
a new __state container.
Location of this __state container is carefully chosen so that fast path
only dirties one qdisc cache line.
THROTTLED bit could later be moved into this __state location too, to
avoid dirtying first qdisc cache line.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 2 Jun 2010 10:23:51 +0000 (03:23 -0700)]
net: Define accessors to manipulate QDISC_STATE_RUNNING
Define three helpers to manipulate QDISC_STATE_RUNNIG flag, that a
second patch will move on another location.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Anirban Chakraborty [Tue, 1 Jun 2010 11:33:09 +0000 (11:33 +0000)]
qlcnic: NIC Partitioning - Add non privileged mode support
Added support for NIC functions that work in non privileged mode where these
functions are privileged to do IO only, the control operations are handled via
privileged functions.
Bumped up version number to 5.0.3.
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Anirban Chakraborty [Tue, 1 Jun 2010 11:28:51 +0000 (11:28 +0000)]
qlcnic: NIC Partitioning - Add basic infrastructure support
Following changes have been added to enable the adapter to work in
NIC partitioning mode where multiple PCI functions of an adapter port can
be configured to work as NIC functions. The first function that is enumerated on
the PCI bus assumes the role of management function which, besides being able
to do all the NIC functionality, can configure other NIC partitions. Other NIC
functions can be configured as privileged or non privileged functions.
Privileged function can not configure other NIC functions but can do all the
NIC functionality including any firmware initialization, chip reset etc. Non
privileged functions can do only basic IO. For chip reset etc, it depends on the
privilege or management function.
1. Added code to determine PCI function number independent of kernel API.
2. Added Driver - FW version 2.0 support.
3. Changed producer and consumer register offset calculation.
4. Added management and privileged operation modes for npar functions. A module
parameter has been added to control it.
5. Added support for configuring the eswitch in the adapter.
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Tue, 1 Jun 2010 11:32:43 +0000 (11:32 +0000)]
sfc: Get port number from CS_PORT_NUM, not PCI function number
A single shared memory region used to communicate with firmware is
mapped into both PCI PFs of the SFC9020 and SFL9021. Drivers must be
able to identify which port they are addressing in order to use the
correct sub-region. Currently we use the PCI function number, but the
PCI address may be virtualised. Use the CS_PORT_NUM register field
defined for just this purpose.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Tue, 1 Jun 2010 11:21:05 +0000 (11:21 +0000)]
sfc: Only count bad packets in rx_errors
rx_errors is defined as 'bad packets received', but we are currently
including various overflow errors as well.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:20:53 +0000 (11:20 +0000)]
sfc: Allow shared pages to be recycled
Insert a structure at the start of the shared page that
tracks the dma mapping refcnt. DMA into the next cache
line of the (shared) page (plus EFX_PAGE_IP_ALIGN).
When recycling a page, check the page refcnt. If the
page is otherwise unused, then resurrect the other
receive buffer that previously referenced the page.
Be careful not to overflow the receive ring, since we
can now resurrect n receive buffers in a row.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:20:34 +0000 (11:20 +0000)]
sfc: Recycle discarded rx buffers back onto the queue
The cut-through design of the receive path means that packets that
fail to match the appropriate MAC filter are not discarded at the MAC
but are flagged in the completion event as 'to be discarded'. On
networks with heavy multicast traffic, this can account for a
significant proportion of received packets, so it is worthwhile to
recycle the buffer immediately in this case rather than freeing it
and then reallocating it shortly after.
The only complication here is dealing with a page shared
between two receive buffers. In that case, we need to be
careful to free the dma mapping when both buffers have
been free'd by the kernel. This means that we can only
recycle such a page if both receive buffers are discarded.
Unfortunately, in an environment with 1500mtu,
rx_alloc_method=PAGE, and a mixture of discarded and
not-discarded frames hitting the same receive queue,
buffer recycling won't always be possible.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:33:17 +0000 (11:33 +0000)]
sfc: Support only two rx buffers per page
- Pull the loop handling into efx_init_rx_buffers_(skb|page)
- Remove rx_queue->buf_page, and associated clean up code
- Remove unmap_addr, since unmap_addr is trivially calculable
This will allow us to recycle discarded buffers directly
from efx_rx_packet(), since will never be in the middle of
splitting a page.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:19:39 +0000 (11:19 +0000)]
sfc: Remove efx_rx_queue::add_lock
Ensure that efx_fast_push_rx_descriptors() must only run
from efx_process_channel() [NAPI], or when napi_disable()
has been executed.
Reimplement the slow fill by sending an event to the
channel, so that NAPI runs, and hanging the subsequent
fast fill off the event handler. Replace the sfc_refill
workqueue and delayed work items with a timer. We do
not need to stop this timer in efx_flush_all() because
it's safe to send the event always; receiving it will
be delayed until NAPI is restarted.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:19:09 +0000 (11:19 +0000)]
sfc: Allow DRV_GEN events to be used outside of selftests
Formerly, efx_test_eventq_irq() assumed it was the only user of
driver generated events. Allow it to interoperate with other users.
We can create more than 16 channels, so align event codes with
a multiple of 256 not 16.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:18:28 +0000 (11:18 +0000)]
sfc: Wait for the link to stay up before running loopback selftest
It's been observed that some phys (such as the qt2025c) can
do down-up-down-up transitions, presumably as pcs block lock
settles down.
The loopback selftest will start sending data immediately
after the link comes up. Work around this by waiting for
the link state to stay up for two consecutive polls, rather
than one.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:18:08 +0000 (11:18 +0000)]
sfc: Synchronise link_advertising and wanted_fc on Siena
All of the ethtool code paths keep them in sync, but we need
to ensure they are sync'd at start of day. Matches the sft9001
driver.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:17:51 +0000 (11:17 +0000)]
sfc: Workaround flush failures on Falcon B0
Under certain conditions a PHY may backpressure Falcon B0
in such a way that flushes timeout. In normal circumstances
the phy poller would fix the PHY, and the flush could complete.
But efx_nic_flush_queues() is always called after efx_stop_all(),
so the poller has been stopped. Even if this weren't the case,
how long would we have to wait for the poller to fix this? And
several callers of efx_nic_flush_queues() are about to reset
the device anyway - so we don't need to do anything.
Work around this bug by scheduling a reset. Ensure that the
MAC is never rewired back into the datapath before the reset
runs (we already ignore all rx events anyway).
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Hodgson [Tue, 1 Jun 2010 11:17:24 +0000 (11:17 +0000)]
sfc: Reschedule any resets scheduled inside efx_pm_freeze()
efx_pm_freeze() sets efx->state = STATE_FINI, which means
efx_reset_work() will abort any scheduled resets.
efx_pm_thaw() should reschedule efx_reset_work() again,
since a freeze/thaw will not have reset the hardware.
This bug was spotted by inspection - there is no real world example of
this happening.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Tue, 1 Jun 2010 11:17:06 +0000 (11:17 +0000)]
sfc: Rename struct efx_mcdi_phy_cfg to efx_mcdi_phy_data
Most of its members are constant capabilities, not configuration. The
new name is also consistent with the name of the pointer to it in
struct efx_nic and the names of structures used by other PHY drivers.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jie Yang [Tue, 1 Jun 2010 07:28:12 +0000 (00:28 -0700)]
atl1c: Add AR8151 v2 support and change L0s/L1 routine
Add AR8151 v2.0 Gigabit 1000 support
Change jumbo frame size to 6K
Update L0s/L1 rountine
when link speed is 100M or 1G, set L1 link timer to 4 for l1d_2 and l2c_b2
set L1 link timer to 7 for l2c_b, set L1 link timer to 0xF for others.
Update atl1c_suspend routine
just refactory the function, add atl1c_phy_power_saving routine,
when Wake On Lan enable, this func will be called to save power,
it will reautoneg PHY to 10/100M speed depend on the link
partners link capability.
Update atl1c_configure_des_ring
do not use l2c_b default SRAM configuration.
Signed-off-by: Jie Yang <Jie.Yang@atheros.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 1 Jun 2010 07:26:58 +0000 (00:26 -0700)]
ipv6: get rid of ipip6_prl_lock
As noticed by Julia Lawall, ipip6_tunnel_add_prl() incorrectly calls
kzallloc(..., GFP_KERNEL) while a spinlock is held. She provided
a patch to use GFP_ATOMIC instead.
One possibility would be to convert this spinlock to a mutex, or
preallocate the thing before taking the lock.
After RCU conversion, it appears we dont need this lock, since
caller already holds RTNL
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Richard Cochran [Tue, 1 Jun 2010 07:16:53 +0000 (00:16 -0700)]
ixp4xx: Support the all multicast flag on the NPE devices.
This patch adds support for the IFF_ALLMULTI flag. Previously only the
IFF_PROMISC flag was supported.
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-By: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Mon, 31 May 2010 17:23:22 +0000 (17:23 +0000)]
net/ipv6/mcast.c: Remove unnecessary kmalloc casts
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Mon, 31 May 2010 17:23:21 +0000 (17:23 +0000)]
net/ipv4/igmp.c: Remove unnecessary kmalloc casts
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Mon, 31 May 2010 17:23:13 +0000 (17:23 +0000)]
drivers/net/tulip/eeprom.c: Remove unnecessary kmalloc casts
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Mon, 31 May 2010 17:23:12 +0000 (17:23 +0000)]
drivers/net/gianfar.c: Remove unnecessary kmalloc casts
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Sun, 30 May 2010 23:34:14 +0000 (23:34 +0000)]
be2net: replace udelay() with schedule_timeout() in mbox polling
As mbox polling is done only in process context, it is better to
use schedule_timeout() instead of udelay().
Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Sun, 30 May 2010 23:33:45 +0000 (23:33 +0000)]
be2net: cleanup in case of error in be_open()
This patch adds cleanup code (things like unregistering irq,
disabling napi etc) to be_open() when an error occurs inside the
routine.
Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steven Walter [Mon, 31 May 2010 12:34:43 +0000 (12:34 +0000)]
tulip: implement wake-on-lan support
Based on a patch from http://simon.baatz.info/wol-support-for-an983b/
Tested to resume from suspend by magic packet.
Signed-off-by: Steven Walter <stevenrwalter@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steven Walter [Mon, 31 May 2010 17:11:53 +0000 (17:11 +0000)]
tulip: explicity set to D0 power state during init
During the first suspend the chip would refuse to enter D3. Subsequent
suspends worked okay. During resume the chip is commanded into D0.
Doing so during initialization fixes the initial suspend.
Signed-off-by: Steven Walter <stevenrwalter@gmail.com>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Mon, 31 May 2010 09:19:04 +0000 (09:19 +0000)]
r6040: bump version to 0.26 and date to 30 May 2010
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Mon, 31 May 2010 09:18:57 +0000 (09:18 +0000)]
r6040: implement phylib
This patch adds support for using phylib and adds the required mdiobus driver
stubs. This allows for less code to be present in the driver and removes
the PHY status specific timer which is now handled by phylib directly.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Mack [Mon, 31 May 2010 07:35:13 +0000 (00:35 -0700)]
drivers/net/arcnet/capmode.c: clean up code
- shuffle around functions to get rid of forward declarations
- fix some CodingStyle and indentation issues
- last but not least, get rid of the following CONFIG_MODULE=n warning:
drivers/net/arcnet/capmode.c:52: warning: ‘capmode_proto’ defined but not used
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 31 May 2010 07:28:35 +0000 (00:28 -0700)]
net: Fix NETDEV_NOTIFY_PEERS to not conflict with NETDEV_BONDING_DESLAVE.
Signed-off-by: David S. Miller <davem@davemloft.net>
Junchang Wang [Sun, 30 May 2010 02:26:07 +0000 (02:26 +0000)]
r8169: remove unnecessary cast of readl()'s return value
readl() returns a 32-bit integer on all platforms.
There is no need to cast its return value.
Signed-off-by: Junchang Wang <junchangwang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Junchang Wang [Sun, 30 May 2010 02:22:14 +0000 (02:22 +0000)]
8139too: remove unnecessary cast of ioread32()'s return value
ioread32() returns a 32-bit integer on all platforms.
There is no need to cast its return value.
Signed-off-by: Junchang Wang <junchangwang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
chas williams - CONTRACTOR [Sat, 29 May 2010 09:05:33 +0000 (09:05 +0000)]
atm: [he] rewrite buffer handling in receive path
Instead of a fixed list of buffers, use the buffer pool correctly and
keep track of the outstanding buffer indexes using a fixed table.
Resolves reported HBUF_ERR's -- failures due to lack of receive buffers.
Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
chas williams - CONTRACTOR [Sat, 29 May 2010 09:04:59 +0000 (09:04 +0000)]
atm: [he] remove small buffer allocation/handling code
Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
chas williams - CONTRACTOR [Sat, 29 May 2010 09:04:25 +0000 (09:04 +0000)]
atm: [nicstar] remove virt_to_bus() and support 64-bit platforms
Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
chas williams - CONTRACTOR [Sat, 29 May 2010 09:03:44 +0000 (09:03 +0000)]
atm: [nicstar] reformatted with Lindent
Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eli Cohen [Wed, 26 May 2010 19:56:24 +0000 (19:56 +0000)]
mlx4_en: use net_device dev_id to indicate port number
Today, there are no means to know which port of a hardware device a netdev
interface uses. struct net_device conatins a field, dev_id, that can be used
for that. Use this field to save the port number in ConnectX that is being used
by the net device; port numbers are zero based.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 26 May 2010 00:09:43 +0000 (00:09 +0000)]
xen: netfront: explicitly generate arp_notify event after migration.
Use newly introduced netif_notify_peers() method to ensure a gratuitous ARP is
generated after a migration.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: xen-devel@lists.xensource.com
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 26 May 2010 00:09:42 +0000 (00:09 +0000)]
arp_notify: allow drivers to explicitly request a notification event.
Currently such notifications are only generated when the device comes up or the
address changes. However one use case for these notifications is to enable
faster network recovery after a virtual machine migration (by causing switches
to relearn their MAC tables). A migration appears to the network stack as a
temporary loss of carrier and therefore does not trigger either of the current
conditions. Rather than adding carrier up as a trigger (which can cause issues
when interfaces a flapping) simply add an interface which the driver can use
to explicitly trigger the notification.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 26 May 2010 00:09:41 +0000 (00:09 +0000)]
arp_notify: document that a gratuitous ARP request is sent when this option is enabled
This option causes a gratuitous ARP request, not a reply as the documentation
currently suggests.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Mon, 24 May 2010 06:29:34 +0000 (06:29 +0000)]
caif: cleanup: remove duplicate checks
"phyinfo" can never be null here because we assigned it an address, so I
removed both the assert and the second check inside the if statement. I
removed the "phyinfo->phy_layer != NULL" check as well because that was
asserted earlier.
Walter Harms suggested I move the "phyinfo->phy_ref_count++;" outside
the if condition for readability, so I have done that.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Sat, 22 May 2010 10:43:42 +0000 (10:43 +0000)]
caif: remove unneeded null check in caif_connect()
We already dereferenced uaddr towards the start of the function when we
checked that "uaddr->sa_family != AF_CAIF". Both the check here and the
earlier check were added in
bece7b2398d0: "caif: Rewritten socket
implementation". Before that patch, we assumed that we recieved a valid
pointer for uaddr, and based on that, I have removed this check.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Fri, 21 May 2010 22:26:42 +0000 (22:26 +0000)]
drivers/isdn: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Fri, 21 May 2010 22:26:04 +0000 (22:26 +0000)]
drivers/net/wan: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Fri, 21 May 2010 22:25:19 +0000 (22:25 +0000)]
net/dccp: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Fri, 21 May 2010 22:20:26 +0000 (22:20 +0000)]
drivers/net/wan: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Fri, 21 May 2010 22:20:10 +0000 (22:20 +0000)]
drivers/net/cxgb3: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Fri, 21 May 2010 22:18:59 +0000 (22:18 +0000)]
drivers/net: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julia Lawall [Fri, 21 May 2010 22:18:34 +0000 (22:18 +0000)]
net/can: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
<+... when != goto l1;
- -ENOMEM
+ PTR_ERR(to)
...+>
}
- if (copy_from_user(to, from, size) != 0) {
- <+... when != goto l2;
- -EFAULT
- ...+>
- }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 17 May 2010 20:40:51 +0000 (20:40 +0000)]
tcp: tcp_md5_hash_skb_data() frag_list handling
tcp_md5_hash_skb_data() should handle skb->frag_list, and eventually
recurse.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 19 May 2010 23:16:03 +0000 (23:16 +0000)]
net: remove zap_completion_queue
netpoll does an interesting work in zap_completion_queue(), but this was
before we did skb orphaning before delivering packets to device.
It now makes sense to add a test in dev_kfree_skb_irq() to not queue a
skb if already orphaned, and to remove netpoll zap_completion_queue() as
a bonus.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 19 May 2010 22:07:23 +0000 (22:07 +0000)]
net: Use __this_cpu_inc() in fast path
This patch saves 224 bytes of text on my machine.
__this_cpu_inc() generates a single instruction, using no scratch
registers :
65 ff 04 25 a8 30 01 00 incl %gs:0x130a8
instead of :
48 c7 c2 80 30 01 00 mov $0x13080,%rdx
65 48 8b 04 25 88 ea 00 00 mov %gs:0xea88,%rax
83 44 10 28 01 addl $0x1,0x28(%rax,%rdx,1)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rami Rosen [Tue, 25 May 2010 10:00:46 +0000 (10:00 +0000)]
cleanup: remove MIN_FRAG_SIZE definition.
- This patch removes MIN_FRAG_SIZE definition in
drivers/net/ppp_generic.c as it is unneeded.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 31 May 2010 07:10:35 +0000 (00:10 -0700)]
Merge branch 'master' of /linux/kernel/git/davem/net-2.6
Linus Torvalds [Sun, 30 May 2010 20:21:02 +0000 (13:21 -0700)]
Linux 2.6.35-rc1
.. and thus endeth the merge window.
Linus Torvalds [Sun, 30 May 2010 19:46:17 +0000 (12:46 -0700)]
Merge branch 'slub/urgent' of git://git./linux/kernel/git/penberg/slab-2.6
* 'slub/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
SLUB: Allow full duplication of kmalloc array for 390
slub: move kmem_cache_node into it's own cacheline
Linus Torvalds [Sun, 30 May 2010 19:35:15 +0000 (12:35 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
mutex: Fix optimistic spinning vs. BKL
Linus Torvalds [Sun, 30 May 2010 19:35:01 +0000 (12:35 -0700)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf tui: Fix last use_browser problem related to .perfconfig
perf symbols: Add the build id cache to the vmlinux path
perf tui: Reset use_browser if stdout is not a tty
ring-buffer: Move zeroing out excess in page to ring buffer code
ring-buffer: Reset "real_end" when page is filled
Linus Torvalds [Sun, 30 May 2010 17:08:03 +0000 (10:08 -0700)]
ia64: revert __node_random addition
This partially reverts commit
4ec37de89d8c758ee8115e0e64b3f994910789ee
("[IA64] Fix build breakage"), since the commit that made it necessary
got reverted earlier (see commit
35926ff5fba8, 'Revert "cpusets:
randomize node rotor used in cpuset_mem_spread_node()"')
Even if we ever re-introduce this, there is no reason to make
__node_random be some architecture-specific function.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 30 May 2010 16:16:14 +0000 (09:16 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mszeredi/fuse
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
mm: export generic_pipe_buf_*() to modules
fuse: support splice() reading from fuse device
fuse: allow splice to move pages
mm: export remove_from_page_cache() to modules
mm: export lru_cache_add_*() to modules
fuse: support splice() writing to fuse device
fuse: get page reference for readpages
fuse: use get_user_pages_fast()
fuse: remove unneeded variable
Linus Torvalds [Sun, 30 May 2010 16:13:43 +0000 (09:13 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/rostedt/linux-2.6-kconfig
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig:
kconfig: Hide error output in find command in streamline_config.pl
kconfig: Fix typo in comment in streamline_config.pl
kconfig: Make a variable local in streamline_config.pl
Linus Torvalds [Sun, 30 May 2010 16:13:08 +0000 (09:13 -0700)]
Merge branch 'for-next' of git://git./linux/kernel/git/sameo/mfd-2.6
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (47 commits)
mfd: Rename twl5031 sih modules
mfd: Storage class for timberdale should be before const qualifier
mfd: Remove unneeded and dangerous clearing of clientdata
mfd: New AB8500 driver
gpio: Fix inverted rdc321x gpio data out registers
mfd: Change rdc321x resources flags to IORESOURCE_IO
mfd: Move pcf50633 irq related functions to its own file.
mfd: Use threaded irq for pcf50633
mfd: pcf50633-adc: Fix potential race in pcf50633_adc_sync_read
mfd: Fix pcf50633 bitfield logic in interrupt handler
gpio: rdc321x needs to select MFD_CORE
mfd: Use menuconfig for quicker config editing
ARM: AB3550 board configuration and irq for U300
mfd: AB3550 core driver
mfd: AB3100 register access change to abx500 API
mfd: Renamed ab3100.h to abx500.h
gpio: Add TC35892 GPIO driver
mfd: Add Toshiba's TC35892 MFD core
mfd: Delay to mask tsc irq in max8925
mfd: Remove incorrect wm8350 kfree
...
Linus Torvalds [Sun, 30 May 2010 16:12:43 +0000 (09:12 -0700)]
Merge branch 'next' of git://git./linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
DMAENGINE: DMA40 U8500 platform configuration
DMA: PL330: Add dma api driver
Linus Torvalds [Sun, 30 May 2010 16:12:16 +0000 (09:12 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/qib: Remove DCA support until feature is finished
IB/qib: Use a single txselect module parameter for serdes tuning
IB/qib: Don't rely on (undefined) order of function parameter evaluation
IB/ucm: Use memdup_user()
IB/qib: Fix undefined symbol error when CONFIG_PCI_MSI=n
Linus Torvalds [Sun, 30 May 2010 16:11:11 +0000 (09:11 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
quota: Convert quota statistics to generic percpu_counter
ext3 uses rb_node = NULL; to zero rb_root.
quota: Fixup dquot_transfer
reiserfs: Fix resuming of quotas on remount read-write
pohmelfs: Remove dead quota code
ufs: Remove dead quota code
udf: Remove dead quota code
quota: rename default quotactl methods to dquot_
quota: explicitly set ->dq_op and ->s_qcop
quota: drop remount argument to ->quota_on and ->quota_off
quota: move unmount handling into the filesystem
quota: kill the vfs_dq_off and vfs_dq_quota_on_remount wrappers
quota: move remount handling into the filesystem
ocfs2: Fix use after free on remount read-only
Fix up conflicts in fs/ext4/super.c and fs/ufs/file.c
Linus Torvalds [Sun, 30 May 2010 16:06:13 +0000 (09:06 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, cpufeature: Unbreak compile with gcc 3.x
x86, pat: Fix memory leak in free_memtype
x86, k8: Fix section mismatch for powernowk8_exit()
lib/atomic64_test: fix missing include of linux/kernel.h
x86: remove last traces of quicklist usage
x86, setup: Phoenix BIOS fixup is needed on Dell Inspiron Mini 1012
x86: "nosmp" command line option should force the system into UP mode
arch/x86/pci: use kasprintf
x86, apic: ack all pending irqs when crashed/on kexec
Rafael J. Wysocki [Thu, 27 May 2010 20:16:22 +0000 (22:16 +0200)]
CPU: Avoid using unititialized error variable in disable_nonboot_cpus()
If there's only one CPU online when disable_nonboot_cpus() is called,
the error variable will not be initialized and that may lead to
erroneous behavior. Fix this issue by initializing error in
disable_nonboot_cpus() as appropriate.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Fri, 28 May 2010 22:08:08 +0000 (15:08 -0700)]
rapidio: fix new kernel-doc warnings
Fix a bunch of new rapidio kernel-doc warnings:
Warning(include/linux/rio.h:123): No description found for parameter 'comp_tag'
Warning(include/linux/rio.h:123): No description found for parameter 'phys_efptr'
Warning(include/linux/rio.h:123): No description found for parameter 'em_efptr'
Warning(include/linux/rio.h:123): No description found for parameter 'pwcback'
Warning(include/linux/rio.h:247): No description found for parameter 'set_domain'
Warning(include/linux/rio.h:247): No description found for parameter 'get_domain'
Warning(drivers/rapidio/rio-scan.c:1133): No description found for parameter 'rdev'
Warning(drivers/rapidio/rio-scan.c:1133): Excess function parameter 'port' description in 'rio_init_em'
Warning(drivers/rapidio/rio.c:349): No description found for parameter 'rdev'
Warning(drivers/rapidio/rio.c:349): Excess function parameter 'mport' description in 'rio_request_inb_pwrite'
Warning(drivers/rapidio/rio.c:393): No description found for parameter 'port'
Warning(drivers/rapidio/rio.c:393): No description found for parameter 'local'
Warning(drivers/rapidio/rio.c:393): No description found for parameter 'destid'
Warning(drivers/rapidio/rio.c:393): No description found for parameter 'hopcount'
Warning(drivers/rapidio/rio.c:393): Excess function parameter 'rdev' description in 'rio_mport_get_physefb'
Warning(drivers/rapidio/rio.c:845): Excess function parameter 'local' description in 'rio_std_route_clr_table'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 30 May 2010 16:02:02 +0000 (09:02 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/kyle/parisc-2.6
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic
parisc: Remove unnecessary macros from entry.S
parisc: LWS fixes for syscall.S
parisc: Delete unnecessary nop's in entry.S
parisc: Avoid interruption in critical region in entry.S
parisc: invoke oom-killer from page fault
parisc: clear floating point exception flag on SIGFPE signal
parisc: Use of align_frame provides stack frame.
Linus Torvalds [Sun, 30 May 2010 16:00:03 +0000 (09:00 -0700)]
Revert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"
This reverts commit
0ac0c0d0f837c499afd02a802f9cf52d3027fa3b, which
caused cross-architecture build problems for all the wrong reasons.
IA64 already added its own version of __node_random(), but the fact is,
there is nothing architectural about the function, and the original
commit was just badly done. Revert it, since no fix is forthcoming.
Requested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 30 May 2010 15:56:39 +0000 (08:56 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: clean up on forwarded aborted mds request
ceph: fix leak of osd authorizer
ceph: close out mds, osd connections before stopping auth
ceph: make lease code DN specific
fs/ceph: Use ERR_CAST
ceph: renew auth tickets before they expire
ceph: do not resend mon requests on auth ticket renewal
ceph: removed duplicated #includes
ceph: avoid possible null dereference
ceph: make mds requests killable, not interruptible
sched: add wait_for_completion_killable_timeout
Christoph Lameter [Thu, 27 May 2010 14:17:17 +0000 (09:17 -0500)]
SLUB: Allow full duplication of kmalloc array for 390
Commit
756dee75872a2a764b478e18076360b8a4ec9045 ("SLUB: Get rid of dynamic DMA
kmalloc cache allocation") makes S390 run out of kmalloc caches. Increase the
number of kmalloc caches to a safe size.
Cc: <stable@kernel.org> [ .33 and .34 ]
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
John David Anglin [Sun, 11 Apr 2010 16:36:14 +0000 (16:36 +0000)]
parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic
Based on the generic implementation of kmap_atomic and kunmap_atomic,
we should call pagefault_disable and pagefault_enable in our PA8000
implementation.
The define for kmap_atomic_prot was also missing, and I updated
kmap_atomic_pfn to use the generic implementation because of the
change to kmap_atomic.
I believe that this change is needed to fix the fork copy-on-write
bug.
Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
John David Anglin [Sun, 11 Apr 2010 17:03:54 +0000 (17:03 +0000)]
parisc: Remove unnecessary macros from entry.S
The EXTR, DEP and DEPI macros are unnecessary. There are PA 1.X
pneumonics available with the same functionality, and the DEP and DEPI
macros conflict with assembler pneumonics.
Tested on a variety of 32 and 64-bit systems.
Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
John David Anglin [Sun, 11 Apr 2010 17:26:34 +0000 (17:26 +0000)]
parisc: LWS fixes for syscall.S
1) Gate immediately and save a branch.
2) Fix off by one error in checking entry number.
3) Use sr7 instead of sr3 in error return path as sr3 might not
contain correct value.
4) Enable locking on UP systems to prevent incorrect operation of
the cas_action critical region on page faults.
Tested on several systems, including UP c3750 with 2.6.33.2 kernel.
Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
John David Anglin [Sun, 11 Apr 2010 17:08:51 +0000 (17:08 +0000)]
parisc: Delete unnecessary nop's in entry.S
Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
John David Anglin [Sun, 11 Apr 2010 17:12:56 +0000 (17:12 +0000)]
parisc: Avoid interruption in critical region in entry.S
Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Nick Piggin [Thu, 22 Apr 2010 16:06:23 +0000 (16:06 +0000)]
parisc: invoke oom-killer from page fault
As explained in commit
1c0fe6e3bd, we want to call the architecture independent
oom killer when getting an unexplained OOM from handle_mm_fault, rather than
simply killing current.
Cc: linux-parisc@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Helge Deller [Mon, 3 May 2010 20:44:21 +0000 (20:44 +0000)]
parisc: clear floating point exception flag on SIGFPE signal
Clear the floating point exception flag before returning to
user space. This is needed, else the libc trampoline handler
may hit the same SIGFPE again while building up a trampoline
to a signal handler.
Fixes debian bug #559406.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Carlos O'Donell [Wed, 31 Mar 2010 20:42:33 +0000 (20:42 +0000)]
parisc: Use of align_frame provides stack frame.
Any assembly constant generated with the use of
align_frame includes size for a full stack frame.
Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>