Commit Graph

243564 Commits

Author SHA1 Message Date
Alexey Dobriyan
19eccc2bc6 kstrtox: convert drivers/isdn/
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:22 -07:00
Joe Perches
dffc6b2432 smsc911x: Use pr_fmt, netdev_<level>, and netif_<level>
Use the more common/verbose logging styles.

Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
Remove smsc911x prefixes from format strings.
Rename SMSC_WARNING to SMSC_WARN.
Remove DPRINTK macro.
Use netif_<level> in SMSC_<level> macros.
Convert NETIF_MSG_<foo> uses to lower case.
Add no_printk verification in non-debug uses.
Add pdata to SMSC_<level> uses to avoid hidden variable uses.
Convert printks to netdev_<level> as appropriate.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:22 -07:00
Sathya Perla
e8c37c8000 be2net: remove one useless line
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:21 -07:00
Sathya Perla
0f4a682882 be2net: cancel be_worker in be_shutdown() even when i/f is down
As the be_worker() workqueue is scheduled in be_probe() it must
be canceled unconditionally in be_shutdown().

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:21 -07:00
Sathya Perla
16da8250df be2net: remove redundant code in be_worker()
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:20 -07:00
Sathya Perla
15d721847f be2net: parse vid and vtm fields of rx-compl only if vlanf bit is set
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:20 -07:00
Sathya Perla
ac6a0c4aab be2net: refactor code that decides adapter->num_rx_queues
The code has been refactored to not set num_rx_qs inside be_enable_msix().
num_rx_qs is now set at the time of queue creation based on the number of
available msix vectors.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:19 -07:00
Somnath Kotur
311fddc756 be2net: Support for FAT dump retrieval using ethtool --register-dump option
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:19 -07:00
hayeswang
01dc7fec40 net/r8169: support RTL8168E
Support RTL8168E/RTL8111E.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:18 -07:00
hayeswang
4804b3b3ae net/r8169: add a new chip for RTL8168DP
Add a new chip for RTL8168DP.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:18 -07:00
hayeswang
36a0e6c2d6 net/r8169: add a new chip for RTL8105
Add a new chip for RTL8105 whose settings are the same with RTL_GIGA_MAC_VER_30.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 21:39:17 -07:00
David S. Miller
4e700bcdd8 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-03-30 21:37:29 -07:00
David S. Miller
a84b50ceb7 sctp: Pass __GFP_NOWARN to hash table allocation attempts.
Like DCCP and other similar pieces of code, there are mechanisms
here to try allocating smaller hash tables if the allocation
fails.  So pass in __GFP_NOWARN like the others do instead of
emitting a scary message.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 17:51:36 -07:00
Patrick McHardy
04f482faf5 connector: convert to synchronous netlink message processing
Commits 01a16b21 (netlink: kill eff_cap from struct netlink_skb_parms)
and c53fa1ed (netlink: kill loginuid/sessionid/sid members from struct
netlink_skb_parms) removed some members from struct netlink_skb_parms
that depend on the current context, all netlink users are now required
to do synchronous message processing.

connector however queues received messages and processes them in a work
queue, which is not valid anymore. This patch converts connector to do
synchronous message processing by invoking the registered callback handler
directly from the netlink receive function.

In order to avoid invoking the callback with connector locks held, a
reference count is added to struct cn_callback_entry, the reference
is taken when finding a matching callback entry on the device's queue_list
and released after the callback handler has been invoked.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 17:14:33 -07:00
Eric Dumazet
e2666f8495 fib: add rtnl locking in ip_fib_net_exit
Daniel J Blueman reported a lockdep splat in trie_firstleaf(), caused by
RTNL being not locked before a call to fib_table_flush()

Reported-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 16:57:46 -07:00
Philip A. Prindeville
c031235b39 atm/solos-pci: Don't flap VCs when carrier state changes
Don't flap VCs when carrier state changes; higher-level protocols
can detect loss of connectivity and act accordingly. This is more
consistent with how other network interfaces work.

We no longer use release_vccs() so we can delete it.

release_vccs() was duplicated from net/atm/common.c; make the
corresponding function exported, since other code duplicates it
and could leverage it if it were public.

Signed-off-by: Philip A. Prindeville <philipp@redfish-solutions.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 16:53:38 -07:00
Philip A. Prindeville
18b429e74e atm/solos-pci: Don't include frame pseudo-header on transmit hex-dump
Omit pkt_hdr preamble when dumping transmitted packet as hex-dump;
we can pull this up because the frame has already been sent, and
dumping it is the last thing we do with it before freeing it.

Also include the size, vpi, and vci in the debug as is done on
receive.

Use "port" consistently instead of "device" intermittently.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 16:53:37 -07:00
Philip A. Prindeville
1e19e65856 atm/solos-pci: Use VPI.VCI notation uniformly.
Use VPI.VCI notation consistently throughout the module. This is the
one remaining place where the VCI is used before the VPI in any output.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 16:53:37 -07:00
Linus Torvalds
6aba74f279 Merge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  avr32: Fix missing irq namespace conversion
  powerpc: qe_ic: Rename get_irq_desc_data and get_irq_desc_chip
  genirq: Remove the now obsolete config options and select statements
  arm: versatile : Fix typo introduced in irq namespace cleanup
  sound: Fixup the last user of the old irq functions
  genirq: Remove obsolete comment
  genirq: Remove now obsolete set_irq_wake()
  sh: Fix irq cleanup fallout
  x86: apb_timer: Fixup genirq fallout
  genirq: Fix misnamed label in handle_edge_eoi_irq

Fix up crazy conflict in arch/powerpc/include/asm/qe_ic.h:

 - commit eead4d5c63 ("powerpc: qe_ic: Rename get_irq_desc_data and
   get_irq_desc_chip") made the helper functions use
   irq_desc_get_handler_data() instead of the legacy (and no longer
   existing) get_irq_desc_data.

 - commit d4db35e8dc ("powerpc/qe_ic: Fix another breakage from the
   irq_data conversion") used irq_desc_get_chip_data() instead.

According to Thomas, the former is the correct direct conversion, but it
does look like both should work (arch/powerpc/sysdev/qe_lib/qe_ic.c
seems to initialize both to the same thing), and the chip data in some
ways is the more logical.  Somebody should really decide on one of the
other.

This merge picks irq_desc_get_handler_data() as the straightforward pure
conversion to new names, as per Thomas.
2011-03-30 09:35:52 -07:00
Linus Torvalds
a8e498b768 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/qe_ic: Fix another breakage from the irq_data conversion
  powerpc/8xx: Fix another breakage from the irq_data conversion
  powerpc/cell: Use handle_edge_eoi_irq for real
  powerpc/pseries: Enable Chelsio network and iWARP drivers
  powerpc/mm: Move the STAB0 location to 0x8000 to make room in low memory
  powerpc: Fix accounting of softirq time when idle
  powerpc/pseries/smp: query-cpu-stopped-state support won't change
  powerpc/xics: Use hwirq for xics domain irq number
  powerpc/xics: Fix numberspace mismatch from irq_desc conversion
  powerpc: Wire up new syscalls
  powerpc/booke: Correct the SPRN_MAS5 definition.
  powerpc: ARCH_PFN_OFFSET should be unsigned long
  powerpc: Implement dma_mmap_coherent()
  powerpc/nvram: Don't overwrite oops/panic report on normal shutdown
  powerpc: Restore some misc devices to our configs
2011-03-30 07:53:17 -07:00
Linus Torvalds
a8a4492138 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
  Blackfin: bitops: fix include order after little endian inclusion
  Blackfin: defconfigs: update after misc devices defaulted to N
  Blackfin: use more standard pr_fmt in the module loader
2011-03-30 07:51:29 -07:00
Linus Torvalds
85eb1513c1 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (65 commits)
  ARM: 6826/1: Merge v6 and v7 DEBUG_LL DCC support
  ARM: 6838/1: etm: fix section mismatch warning
  ARM: 6837/1: remove unused pci_fixup_prpmc1100
  ARM: 6836/1: kprobes/fix emulation of LDR/STR instruction when Rn == PC
  Fix the broken build for Marvell Dove platform.
  ARM: 6835/1: perf: ensure overflows aren't missed due to IRQ latency
  ARM: 6834/1: perf: reset counters on all CPUs during initialisation
  ARM: 6833/1: perf: add required isbs() to ARMv7 backend
  ARM: 6825/1: kernel/sleep.S: fix Thumb2 compilation issues
  ARM: 6807/1: realview: Fix secondary GIC initialisation for EB with MPCore tile
  arm: mach-mx3: pcm043: add write-protect and card-detect for SD1
  eukrea_mbimxsd51: add SD Card detect
  eukrea_mbimxsd25-baseboard: add SD card detect
  mx3/eukrea_mbimxsd-baseboard: add SD card detect support
  mx3/eukrea_mbimxsd-baseboard: fix gpio request
  ARM: mxs/mx28evk: add mmc device
  ARM: mxs/mx23evk: add mmc device
  ARM: mxs: dynamically allocate mmc device
  ARM: mx51_efika: update platform data for new mfd changes
  mx2/iomux: Set direction for CSPI2 pins
  ...
2011-03-30 07:50:45 -07:00
Thomas Gleixner
dd8ea6af1b avr32: Fix missing irq namespace conversion
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-30 15:38:03 +02:00
Richard Cochran
eead4d5c63 powerpc: qe_ic: Rename get_irq_desc_data and get_irq_desc_chip
These two functions disappeared in commit

    0c6f8a8b91
    "genirq: Remove compat code"

but they still exist in qe_ic.h.
This patch renames the function to their new names.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Lennert Buytenhek <buytenh@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
LKML-Reference: <20110330132504.GA31832@riccoc20.at.omicron.at>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-30 15:38:02 +02:00
Thomas Gleixner
78c8982564 genirq: Remove the now obsolete config options and select statements
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-30 14:13:23 +02:00
Grant Likely
e282326600 arm: versatile : Fix typo introduced in irq namespace cleanup
Commit 6845664(arm: Cleanup the irq namespace) introduces a typo
causing a build failure for the versatile platform.

[ tglx: Sorry, my bad. Have no idea how I fatfingered that ]

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
LKML-Reference: <20110330060229.27397.7628.stgit@ponder>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-30 12:02:15 +02:00
Jesper Juhl
ad19031b5f Atheros, atl2: Fix mem leaks in error paths of atl2_set_eeprom
We leak in some error paths of drivers/net/atlx/atl2.c:atl2_set_eeprom().
The memory allocated to 'eeprom_buff' is not freed when we return -EIO.
This patch fixes that up and also removes a pointless explicit cast.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 02:42:25 -07:00
Daniel Lezcano
79b569f0ec netdev: fix mtu check when TSO is enabled
In case the device where is coming from the packet has TSO enabled,
we should not check the mtu size value as this one could be bigger
than the expected value.

This is the case for the macvlan driver when the lower device has
TSO enabled. The macvlan inherit this feature and forward the packets
without fragmenting them. Then the packets go through dev_forward_skb
and are dropped. This patch fix this by checking TSO is not enabled
when we want to check the mtu size.

Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 02:42:17 -07:00
Andrzej Zaborowski
7a635ea989 net/usb: Ethernet quirks for the LG-VL600 4G modem
This adds a driver for the CDC Ethernet part of this modem.  The
device's ID is blacklisted in cdc_ether.c and is white-listed in
this new driver because of the quirks needed to make it useful.
The modem's firmware exposes a CDC ACM port for modem control and a
CDC Ethernet port for network data.  The descriptors look fine but
both ports actually are some sort of multiplexers requiring non-
standard headers added/removed from every packet or they get
ignored.  All information is based on a usb traffic log from a
Windows machine.

On the Verizon 4G network I've seen speeds up to 1.1MB/s so far with
this driver, a speed-o-meter site reports 16.2Mbps/10.5Mbps.
Userspace scripts are required to talk to the CDC ACM port.

Signed-off-by: Andrzej Zaborowski <balrogg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 02:35:08 -07:00
Marc Kleine-Budde
d005a09edf phylib: phy_attach_direct: phy_init_hw can fail, add cleanup
The function phy_attach_direct attaches the phy and calls phy_init_hw.
phy_init_hw can fail, but the phy is still marked as attached. Successive
calls to phy_attach_direct will fail because the phy is busy.

[    1.020000] eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:00, irq=-1)
[    1.030000] eth1: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:01, irq=-1)
[    2.050000] Sending DHCP requests .
[    3.020000] PHY: 1:00 - Link is Up - 100/Full
[    5.110000] ..... timed out!
[   87.660000] IP-Config: Reopening network devices...
[   88.190000] FEC: MDIO read timeout
[   88.190000] eth0: could not attach to PHY
[   88.190000] IP-Config: Failed to open eth0
[   88.210000] FEC: MDIO read timeout
[   88.210000] eth1: could not attach to PHY
[   88.210000] IP-Config: Failed to open eth1
[   88.220000] IP-Config: No network devices available.
[   88.220000] Freeing init memory: 6968K

[...]

starting network interfaces...
ip: RTNETLINK answers: File exists
[   94.000000] net eth0: PHY already attached
[   94.010000] eth0: could not attach to PHY
ip: SIOCSIFFLAGS: Device or resource busy

This patch adds phy_detach to clean up if phy_init_hw fails.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 02:31:36 -07:00
Linus Lüssing
ff9a57a62a bridge: mcast snooping, fix length check of snooped MLDv1/2
"len = ntohs(ip6h->payload_len)" does not include the length of the ipv6
header itself, which the rest of this function assumes, though.

This leads to a length check less restrictive as it should be in the
following line for one thing. For another, it very likely leads to an
integer underrun when substracting the offset and therefore to a very
high new value of 'len' due to its unsignedness. This will ultimately
lead to the pskb_trim_rcsum() practically never being called, even in
the cases where it should.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 02:28:20 -07:00
Ben Hutchings
fd1d9188f2 via-ircc: Pass PCI device pointer to dma_{alloc, free}_coherent()
via-ircc has been passing a NULL pointer to DMA allocation functions,
which is completely invalid and results in a BUG on PowerPC.  Now
that we always have the device pointer available, pass it in.

Reference: http://bugs.debian.org/619450
Reported-by: Andrew Buckeridge <andrewb@bgc.com.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Andrew Buckeridge <andrewb@bgc.com.au> [against 2.6.32]
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 00:12:33 -07:00
Ben Hutchings
abc45592bc via-ircc: Use pci_{get, set}_drvdata() instead of static pointer variable
via-ircc still maintains its own array of device pointers in Linux 2.4
style.  Worse, it always uses index 0, so it will crash if there are
multiple suitable devices in the system.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 00:12:32 -07:00
Timo Teräs
93ca3bb5df net: gre: provide multicast mappings for ipv4 and ipv6
My commit 6d55cb91a0 (gre: fix hard header destination
address checking) broke multicast.

The reason is that ip_gre used to get ipgre_header() calls with
zero destination if we have NOARP or multicast destination. Instead
the actual target was decided at ipgre_tunnel_xmit() time based on
per-protocol dissection.

Instead of allowing the "abuse" of ->header() calls with invalid
destination, this creates multicast mappings for ip_gre. This also
fixes "ip neigh show nud noarp" to display the proper multicast
mappings used by the gre device.

Reported-by: Doug Kehn <rdkehn@yahoo.com>
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Acked-by: Doug Kehn <rdkehn@yahoo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 00:10:47 -07:00
Balaji G
1459a3cc51 bridge: Fix compilation warning in function br_stp_recalculate_bridge_id()
net/bridge/br_stp_if.c: In function ‘br_stp_recalculate_bridge_id’:
net/bridge/br_stp_if.c:216:3: warning: ‘return’ with no value, in function returning non-void

Signed-off-by: G.Balaji <balajig81@gmail.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-29 23:37:23 -07:00
David S. Miller
eec009548e net: Fix warnings caused by MAX_SKB_FRAGS change.
After commit a715dea3c8 ("net: Always
allocate at least 16 skb frags regardless of page size"), the value
of MAX_SKB_FRAGS can now take on either an "unsigned long" or an
"int" value.

This causes warnings like:

net/packet/af_packet.c: In function ‘tpacket_fill_skb’:
net/packet/af_packet.c:948: warning: format ‘%lu’ expects type ‘long unsigned int’, but argument 2 has type ‘int’

Fix by forcing the constant to be unsigned long, otherwise we have
a situation where the type of a system wide constant is variable.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-29 23:34:08 -07:00
Benjamin Herrenschmidt
d4db35e8dc powerpc/qe_ic: Fix another breakage from the irq_data conversion
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 11:17:15 +11:00
Benjamin Herrenschmidt
b3cf2bb3d5 powerpc/8xx: Fix another breakage from the irq_data conversion
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 11:07:13 +11:00
Stephen Rothwell
e122996ae1 powerpc/cell: fixup for removal of handle_iic_irq
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-29 17:04:39 -07:00
Stephen Rothwell
ac0e0447be genirq: fix CONFIG_IRQ_EDGE_EOI_HANDLER build
Fixes these errors:

  kernel/irq/chip.c: In function 'handle_edge_eoi_irq':
  kernel/irq/chip.c:517: warning: label 'out_unlock' defined but not used
  kernel/irq/chip.c:503: error: label 'out_eoi' used but not defined

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-29 17:04:39 -07:00
Thomas Gleixner
8987eccde8 powerpc/cell: Use handle_edge_eoi_irq for real
Missed one instance when moving that to the core code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: michael@ellerman.id.au
Cc: mingo@elte.hu
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:24 +11:00
Anton Blanchard
23c6211043 powerpc/pseries: Enable Chelsio network and iWARP drivers
Ensure the Chelsio T3/T4 network drivers and iWARP drivers are
enabled in the pseries config.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:22 +11:00
Benjamin Herrenschmidt
84493804bb powerpc/mm: Move the STAB0 location to 0x8000 to make room in low memory
Recent upstream builds with allmodconfig fail due to lack of space
between 0x3000 and 0x6000. We have a hard block at 0x7000 but we can
spare a page by moving the STAB0 from 0x6000 to 0x8000.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:20 +11:00
Anton Blanchard
ad5d1c888e powerpc: Fix accounting of softirq time when idle
commit cf9efce0ce (powerpc: Account time using timebase rather
than PURR) used in_irq() to detect if the time was spent in
interrupt processing. This only catches hardirq context so if we
are in softirq context and in the idle loop we end up accounting it
as idle time. If we instead use in_interrupt() we catch both softirq
and hardirq time.

The issue was found when running a network intensive workload. top
showed the following:

0.0%us,  1.1%sy,  0.0%ni, 85.7%id,  0.0%wa,  9.9%hi,  3.3%si,  0.0%st

85.7% idle. But this was wildly different to the perf events data.
To confirm the suspicion I ran something to keep the core busy:

# yes > /dev/null &

8.2%us,  0.0%sy,  0.0%ni,  0.0%id,  0.0%wa, 10.3%hi, 81.4%si,  0.0%st

We only got 8.2% of the CPU for the userspace task and softirq has
shot up to 81.4%.

With the patch below top shows the correct stats:

0.0%us,  0.0%sy,  0.0%ni,  5.3%id,  0.0%wa, 13.3%hi, 81.3%si,  0.0%st

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:18 +11:00
Milton Miller
2d86938a4e powerpc/pseries/smp: query-cpu-stopped-state support won't change
If a given firmware doesn't have a token to support query-cpu-stopped-state,
its not likely to change during the lifetime of the kernel.

Only print this information once, not once per secondary thread.

While here, make the line wrap grep friendly.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:16 +11:00
Milton Miller
943739fd59 powerpc/xics: Use hwirq for xics domain irq number
To try to avoid future confusion, rename irq to hwirq when it refers
to a xics domain number instead of a linux irq number.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:15 +11:00
Milton Miller
4f1fc48a73 powerpc/xics: Fix numberspace mismatch from irq_desc conversion
commit 79f26c268e (powerpc:
platforms/pseries irq_data conversion) pushed irq_desc down into many
functions, dererencing the descriptor irq field as late as possible.

But it incorrectly passed a linix virtural irq number to RTAS,
resulting in the interrupt not being disabled and possibly
other bad things, such as another interrupt being disabled and/or
a checkstop.

In addition this missed the point of xics_mask_unknown_vec and
the seperation of xics_mask_real_irq from xics_mask_irq.  When
xics_mask_unknown_vec is called it's because the hardware delivered an
irq source for which we have no linux irq allocated, and thefore we can
not have an irq_desc allocated.

Revert xics_mask_real_irq to its prior version, naming the argument
hwirq to highlight the difference.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:13 +11:00
Stephen Rothwell
834796a849 powerpc: Wire up new syscalls
These syscalls have been added recently:
	name_to_handle_at
	open_by_handle_at
	clock_adjtime
	syncfs

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:11 +11:00
Varun Sethi
05e02d7f88 powerpc/booke: Correct the SPRN_MAS5 definition.
339 is the SPR number for MAS5 documented by Power ISA 2.06, and
implemented by e500mc.  It is not yet used anywhere in the kernel,
so nothing should be relying on the wrong number.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:09 +11:00
Scott Wood
67eb54944b powerpc: ARCH_PFN_OFFSET should be unsigned long
pfns are unsigned long, but MEMORY_START is phys_addr_t.  This leads
to page_to_pfn() returning phys_addr_t, and thus type mismatches in a few
print statements.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-30 10:44:07 +11:00