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321,511 commits

Author SHA1 Message Date
Tony Luck
e9c31b32f1 debug: Do not permit CONFIG_DEBUG_STACK_USAGE=y on IA64 or PARISC
The stack_not_used() function in <linux/sched.h> assumes that stacks
grow downwards. This is not true on IA64 or PARISC, so this function
would walk off in the wrong direction and into the weeds.

Found on IA64 because of a compilation failure with recursive dependencies
on IA64_TASKSIZE and IA64_THREAD_INFO_SIZE.

Fixing the code is possible, but should be combined with other
infrastructure additions to set up the "canary" at the end of the stack.

Reported-by: Fengguang Wu <fengguang.wu@intel.com> (failed allmodconfig build)
Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-07-19 10:36:45 -07:00
Eric Dumazet
be9f4a44e7 ipv4: tcp: remove per net tcp_sock
tcp_v4_send_reset() and tcp_v4_send_ack() use a single socket
per network namespace.

This leads to bad behavior on multiqueue NICS, because many cpus
contend for the socket lock and once socket lock is acquired, extra
false sharing on various socket fields slow down the operations.

To better resist to attacks, we use a percpu socket. Each cpu can
run without contention, using appropriate memory (local node)

Additional features :

1) We also mirror the queue_mapping of the incoming skb, so that
answers use the same queue if possible.

2) Setting SOCK_USE_WRITE_QUEUE socket flag speedup sock_wfree()

3) We now limit the number of in-flight RST/ACK [1] packets
per cpu, instead of per namespace, and we honor the sysctl_wmem_default
limit dynamically. (Prior to this patch, sysctl_wmem_default value was
copied at boot time, so any further change would not affect tcp_sock
limit)

[1] These packets are only generated when no socket was matched for
the incoming packet.

Reported-by: Bill Sommerfeld <wsommerfeld@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 10:35:30 -07:00
Julian Anastasov
aee06da672 ipv4: use seqlock for nh_exceptions
Use global seqlock for the nh_exceptions. Call
fnhe_oldest with the right hash chain. Correct the diff
value for dst_set_expires.

v2: after suggestions from Eric Dumazet:
* get rid of spin lock fnhe_lock, rearrange update_or_create_fnhe
* continue daddr search in rt_bind_exception

v3:
* remove the daddr check before seqlock in rt_bind_exception
* restart lookup in rt_bind_exception on detected seqlock change,
as suggested by David Miller

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 10:30:14 -07:00
Duan Jiong
36eb22e97a libertas: firmware.c: remove duplicated include
Signed-off-by: Duan Jiong <djduanjiong@gmail.com>
2012-07-19 12:36:34 -04:00
John W. Linville
3e497e0215 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2012-07-19 12:35:00 -04:00
David S. Miller
7fed84f622 ipv4: Fix time difference calculation in rt_bind_exception().
Reported-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 08:46:59 -07:00
Amir Vadai
1eb8c695bd net/mlx4_en: Add accelerated RFS support
Use RFS infrastructure and flow steering in HW to keep CPU
affinity of rx interrupts and application per TCP stream.

A flow steering filter is added to the HW whenever the RFS
ndo callback is invoked by core networking code.

Because the invocation takes place in interrupt context, the
actual setup of HW is done using workqueue. Whenever new filter
is added, the driver checks for expiry of existing filters.

Since there's window in time between the point where the core
RFS code invoked the ndo callback, to the point where the HW
is configured from the workqueue context, the 2nd, 3rd etc
packets from that stream will cause the net core to invoke
the callback again and again.

To prevent inefficient/double configuration of the HW, the filters
are kept in a database which is indexed using hash function to enable
fast access.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 08:34:37 -07:00
Amir Vadai
d9236c3f10 {NET,IB}/mlx4: Add rmap support to mlx4_assign_eq
Enable callers of mlx4_assign_eq to supply a pointer to cpu_rmap.
If supplied, the assigned IRQ is tracked using rmap infrastructure.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 08:34:37 -07:00
Amir Vadai
122733a189 net/rps: Protect cpu_rmap.h from double inclusion
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 08:34:37 -07:00
Amir Vadai
af22d9de45 net/mlx4: Move MAC_MASK to a common place
Define this macro is one common place instead of duplicating it over the code

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 08:34:37 -07:00
Julian Anastasov
0cc535a299 ipv4: fix address selection in fib_compute_spec_dst
ip_options_compile can be called for forwarded packets,
make sure the specific-destionation address is a local one as
specified in RFC 1812, 4.2.2.2 Addresses in Options

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 08:30:49 -07:00
Julian Anastasov
6255e5ead0 ipv4: optimize fib_compute_spec_dst call in ip_options_echo
Move fib_compute_spec_dst at the only place where it
is needed.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-19 08:30:49 -07:00
Linus Torvalds
3e4b9459fb md: 3 bugfixes for 3.5-rc
One of the bugs was introduced in 3.5-rc1.  Others have
 been there for longer.
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Merge tag 'md-3.5-fixes' of git://neil.brown.name/md

Pull three md bugfixes from NeilBrown:
 "One of the bugs was introduced in 3.5-rc1.  Others have been there for
  longer."

* tag 'md-3.5-fixes' of git://neil.brown.name/md:
  md/raid1: close some possible races on write errors during resync
  md: avoid crash when stopping md array races with closing other open fds.
  md: fix bug in handling of new_data_offset
2012-07-19 08:27:13 -07:00
Linus Torvalds
309d4b000b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking changes from David Miller:
 "Ok, we should be good to go now"

1) We have to statically initialize the init_net device list head rather
   than do so in an initcall, otherwise netprio_cgroup crashes if it's
   built statically rather than modular (Mark D.  Rustad)

2) Fix SKB null oopser in CIPSO ipv4 option processing (Paul Moore)

3) Qlogic maintainers update (Anirban Chakraborty)

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: Statically initialize init_net.dev_base_head
  MAINTAINERS: Changes in qlcnic and qlge maintainers list
  cipso: don't follow a NULL pointer when setsockopt() is called
2012-07-19 08:21:13 -07:00
Linus Torvalds
61c901c569 Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID update from Jiri Kosina:
 "A final round of changes for HID for 3.5: just device ID additions."

* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: hid-multitouch: add support for Zytronic panels
  HID: add Sennheiser BTD500USB device support
  HID: add battery quirk for Apple Wireless ANSI
2012-07-19 08:15:55 -07:00
Ezequiel Garcia
380e99fc44 cx25821: Remove bad strcpy to read-only char*
The strcpy was being used to set the name of the board.  Since the
destination char* was read-only and the name is set statically at
compile time; this was both wrong and redundant.

The type of char* is changed to const char* to prevent future errors.

Reported-by: Radek Masin <radek@masin.eu>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
[ Taking directly due to vacations   - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-19 08:15:33 -07:00
Theodore Ts'o
b4237003cf random: final removal of IRQF_SAMPLE_RANDOM
The IRQF_SAMPLE_RANDOM flag is finally gone from the kernel tree, only
three years late.  :-)

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-07-19 10:40:42 -04:00
Theodore Ts'o
aab944606f um: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
2012-07-19 10:40:42 -04:00
Theodore Ts'o
71ba8d44da sparc/ldc: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: "David S. Miller" <davem@davemloft.net>
2012-07-19 10:40:30 -04:00
Theodore Ts'o
1467376424 [ARM] pxa: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
2012-07-19 10:40:16 -04:00
Theodore Ts'o
9863fa6c8b board-palmz71: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Tony Lindgren <tony@atomide.com>
2012-07-19 10:40:15 -04:00
Theodore Ts'o
34e4cc40a0 isp1301_omap: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Felipe Balbi <balbi@ti.com>
2012-07-19 10:40:14 -04:00
Theodore Ts'o
8de1ee8f93 pxa25x_udc: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
2012-07-19 10:39:56 -04:00
Theodore Ts'o
9728276835 omap_udc: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Felipe Balbi <balbi@ti.com>
2012-07-19 10:39:55 -04:00
Theodore Ts'o
11bc26836a goku_udc: remove IRQF_SAMPLE_RANDOM which was commented out
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule.

The flag was only commented-out in the driver, but we should just
remove it altogether.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Felipe Balbi <balbi@ti.com>
2012-07-19 10:39:54 -04:00
Theodore Ts'o
fc4b1863a5 uartlite: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
2012-07-19 10:39:42 -04:00
Theodore Ts'o
20ed3ef7f3 drivers: hv: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
2012-07-19 10:39:25 -04:00
Theodore Ts'o
89c30f161c xen-blkfront: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
2012-07-19 10:39:25 -04:00
Theodore Ts'o
9751bfd1c9 n2_crypto: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-19 10:39:12 -04:00
Theodore Ts'o
d554a3f9d3 pda_power: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
2012-07-19 10:38:48 -04:00
Theodore Ts'o
d38a0149e8 i2c-pmcmsp: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: "Ben Dooks" <ben-linux@fluff.org>
Cc: "Wolfram Sang" <w.sang@pengutronix.de>
2012-07-19 10:38:47 -04:00
Theodore Ts'o
a5d600f874 input/serio/hp_sdc.c: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-19 10:38:34 -04:00
Theodore Ts'o
212436c2ac mfd: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Samuel Ortiz <sameo@linux.intel.com>
2012-07-19 10:38:33 -04:00
Theodore Ts'o
c5857ccf29 random: remove rand_initialize_irq()
With the new interrupt sampling system, we are no longer using the
timer_rand_state structure in the irq descriptor, so we can stop
initializing it now.

[ Merged in fixes from Sedat to find some last missing references to
  rand_initialize_irq() ]

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
2012-07-19 10:38:32 -04:00
Mark Brown
27130f0cc3 mfd: wm831x: Feed the device UUID into device_add_randomness()
wm831x devices contain a unique ID value. Feed this into the newly added
device_add_randomness() to add some per device seed data to the pool.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-07-19 10:38:31 -04:00
Mark Brown
9dccf55f4c rtc: wm831x: Feed the write counter into device_add_randomness()
The tamper evident features of the RTC include the "write counter" which
is a pseudo-random number regenerated whenever we set the RTC. Since this
value is unpredictable it should provide some useful seeding to the random
number generator.

Only do this on boot since the goal is to seed the pool rather than add
useful entropy.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-07-19 10:38:31 -04:00
Theodore Ts'o
330e0a01d5 MAINTAINERS: Theodore Ts'o is taking over the random driver
Matt Mackall stepped down as the /dev/random driver maintainer last
year, so Theodore Ts'o is taking back the /dev/random driver.

Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-07-19 10:38:22 -04:00
Bob Peterson
8e2e004735 GFS2: Reduce file fragmentation
This patch reduces GFS2 file fragmentation by pre-reserving blocks. The
resulting improved on disk layout greatly speeds up operations in cases
which would have resulted in interlaced allocation of blocks previously.
A typical example of this is 10 parallel dd processes, each writing to a
file in a common dirctory.

The implementation uses an rbtree of reservations attached to each
resource group (and each inode).

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2012-07-19 14:51:08 +01:00
Benjamin Tissoires
e9a09aed3e HID: hid-multitouch: add support for Zytronic panels
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-19 13:56:16 +02:00
Joerg Roedel
2c9195e990 iommu/amd: Fix hotplug with iommu=pt
This did not work because devices are not put into the
pt_domain. Fix this.

Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-07-19 13:42:54 +02:00
Laurent Pinchart
a4aa25f6e7 fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode
The chroma plane offset in memory is equal to the luma plane maximum
size. Fix offset computations.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 12:15:26 +02:00
Laurent Pinchart
8be7c66995 fbdev: sh_mobile_lcdc: Fix overlay registers update during pan operation
Updating overlay registers require switching to overlay update mode.
This was correctly done when configuring the overlay format and size,
but not when updating the base address registers during pan operation.
Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 12:15:26 +02:00
Laurent Pinchart
15dede882e fbdev: sh_mobile_lcdc: Support horizontal panning
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-07-19 12:15:24 +02:00
Sebastian Andrzej Siewior
85a053fa5f MIPS: PCI: Move fixups from __init to __devinit.
Fixups are executed once the pci-device is found which is during boot
process so __init seems fine as long as the platform does not support
hotplug.
However it is possible to remove the PCI bus at run time and have it
rediscovered again via "echo 1 > /sys/bus/pci/rescan" and this will call
the fixups again.

[ralf@linux-mips.org: Made piixirqmap[] in malta_piix_func0_fixup()
__initdata.]

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-19 11:27:23 +02:00
Yoichi Yuasa
3592c3cd06 MIPS: Fix bug.h MIPS build regression
Commit: 3777808873 [bug.h: need linux/kernel.h
for TAINT_WARN.] breaks all MIPS builds.

  CC      arch/mips/kernel/machine_kexec.o
In file included from include/linux/kernel.h:20:0,
                 from include/asm-generic/bug.h:35,
                 from /home/yuasa/src/linux/kernel/git/linux-2.6/arch/mips/include/asm/bug.h:41,
                 from /home/yuasa/src/linux/kernel/git/linux-2.6/arch/mips/include/asm/bitops.h:20,
                 from include/linux/bitops.h:22,
                 from include/linux/signal.h:38,
                 from include/linux/elfcore.h:5,
                 from include/linux/kexec.h:60,
                 from arch/mips/kernel/machine_kexec.c:9:
include/linux/log2.h: In function '__ilog2_u32':
include/linux/log2.h:34:2: error: implicit declaration of function 'fls' [-Werror=implicit-function-declaration]
include/linux/log2.h: In function '__ilog2_u64':
include/linux/log2.h:42:2: error: implicit declaration of function 'fls64' [-Werror=implicit-function-declaration]
include/linux/log2.h: In function '__roundup_pow_of_two':
include/linux/log2.h:63:2: error: implicit declaration of function 'fls_long' [-Werror=implicit-function-declaration]
In file included from include/linux/bitops.h:22:0,
                 from include/linux/signal.h:38,
                 from include/linux/elfcore.h:5,
                 from include/linux/kexec.h:60,
                 from arch/mips/kernel/machine_kexec.c:9:
/home/yuasa/src/linux/kernel/git/linux-2.6/arch/mips/include/asm/bitops.h: At top level:
/home/yuasa/src/linux/kernel/git/linux-2.6/arch/mips/include/asm/bitops.h:615:19: error: static declaration of 'fls' follows non-static declaration
include/linux/log2.h:34:9: note: previous implicit declaration of 'fls' was here
In file included from /home/yuasa/src/linux/kernel/git/linux-2.6/arch/mips/include/asm/bitops.h:651:0,
                 from include/linux/bitops.h:22,
                 from include/linux/signal.h:38,
                 from include/linux/elfcore.h:5,
                 from include/linux/kexec.h:60,
                 from arch/mips/kernel/machine_kexec.c:9:
include/asm-generic/bitops/fls64.h:18:28: error: static declaration of 'fls64' follows non-static declaration
include/linux/log2.h:42:9: note: previous implicit declaration of 'fls64' was here
In file included from include/linux/signal.h:38:0,
                 from include/linux/elfcore.h:5,
                 from include/linux/kexec.h:60,
                 from arch/mips/kernel/machine_kexec.c:9:
include/linux/bitops.h:160:24: error: conflicting types for 'fls_long'
include/linux/log2.h:63:16: note: previous implicit declaration of 'fls_long' was here
cc1: all warnings being treated as errors

make[2]: *** [arch/mips/kernel/machine_kexec.o] Error 1

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: yuasa@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Linuxppc-dev <linuxppc-dev@ozlabs.org>
Cc: Linux MIPS Mailing List <linux-mips@linux-mips.org>
Cc: Linux-sh list <linux-sh@vger.kernel.org>
Cc: Chris Zankel <chris@zankel.net>
Patchwork: https://patchwork.linux-mips.org/patch/4000/
Tested-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-19 11:27:17 +02:00
Yong Zhang
f2b88d65aa MIPS: sync-r4k: remove redundant irq operation
Since we have delayed irq enabling to ->smp_finish()

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: David Daney <david.daney@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-19 11:23:44 +02:00
Yong Zhang
b789ad63ac MIPS: smp: Warn on too early irq enable
Just to catch a potential issue.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: David Daney <david.daney@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/3852/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-19 11:23:44 +02:00
Yong Zhang
b9a09a0660 MIPS: call set_cpu_online() on cpu being brought up with irq disabled
To prevent a problem as commit 5fbd036b [sched: Cleanup cpu_active madness]
and commit 2baab4e9 [sched: Fix select_fallback_rq() vs cpu_active/cpu_online]
try to resolve, move set_cpu_online() to the brought up CPU and with irq
disabled.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: David Daney <david.daney@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/3851/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-19 11:23:44 +02:00
Yong Zhang
5309bdac70 MIPS: call ->smp_finish() a little late
We have move irq enable to ->smp_finish. Place ->smp_finish() a little
late to prepare for move set_cpu_online() into start_secondary.
And it's not necessary to call cpu_set(cpu, cpu_callin_map) and
synchronise_count_slave() with irq enabled.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: David Daney <david.daney@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/3850/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-19 11:23:44 +02:00
Yong Zhang
263afbdd1c MIPS: Yosemite: delay irq enable to ->smp_finish()
To prepare for smoothing set_cpu_[active|online]() mess up

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: David Daney <david.daney@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/3848/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-19 11:23:44 +02:00