GitHub/LineageOS/G12/android_kernel_amlogic_linux-4.9.git
15 years agogianfar: Fix potential soft reset race
Andy Fleming [Thu, 5 Feb 2009 00:38:05 +0000 (16:38 -0800)]
gianfar: Fix potential soft reset race

SOFT_RESET must be asserted for at least 3 TX clocks in order for it to work
properly.  The syncs in the gfar_write() commands have been hiding this, but
we need to guarantee it.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agogianfar: Fix BD_LENGTH_MASK definition
Andy Fleming [Thu, 5 Feb 2009 00:37:40 +0000 (16:37 -0800)]
gianfar: Fix BD_LENGTH_MASK definition

BD_LENGTH_MASK is supposed to catch the low 16-bits of the status field, not
the low byte.  The old way, we would never be able to clean up tx packets with
sizes divisible by 256.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agocxgb3: Fix lro switch
Divy Le Ray [Thu, 5 Feb 2009 00:31:39 +0000 (16:31 -0800)]
cxgb3: Fix lro switch

The LRO switch is always set to 1 in the rx processing loop.
It breaks the accelerated iSCSI receive traffic.
Fix its computation.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosunrpc: fix rdma dependencies
Randy Dunlap [Tue, 3 Feb 2009 23:20:13 +0000 (15:20 -0800)]
sunrpc: fix rdma dependencies

Fix sunrpc/rdma build dependencies.
Survives 12 build combinations of INET, IPV6, SUNRPC,
INFINIBAND, and INFINIBAND_ADDR_TRANS.

ERROR: "rdma_destroy_id" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined!
ERROR: "rdma_connect" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined!
ERROR: "rdma_destroy_qp" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined!
ERROR: "rdma_create_id" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined!
ERROR: "rdma_create_qp" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined!
ERROR: "rdma_resolve_route" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined!
ERROR: "rdma_disconnect" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined!
ERROR: "rdma_resolve_addr" [net/sunrpc/xprtrdma/xprtrdma.ko] undefined!
ERROR: "rdma_accept" [net/sunrpc/xprtrdma/svcrdma.ko] undefined!
ERROR: "rdma_destroy_id" [net/sunrpc/xprtrdma/svcrdma.ko] undefined!
ERROR: "rdma_listen" [net/sunrpc/xprtrdma/svcrdma.ko] undefined!
ERROR: "rdma_create_id" [net/sunrpc/xprtrdma/svcrdma.ko] undefined!
ERROR: "rdma_create_qp" [net/sunrpc/xprtrdma/svcrdma.ko] undefined!
ERROR: "rdma_bind_addr" [net/sunrpc/xprtrdma/svcrdma.ko] undefined!
ERROR: "rdma_disconnect" [net/sunrpc/xprtrdma/svcrdma.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoe1000: Fix PCI enable to honor the need_ioport flag
Karsten Keil [Tue, 3 Feb 2009 23:18:01 +0000 (15:18 -0800)]
e1000: Fix PCI enable to honor the need_ioport flag

On machine were no IO ports are assigned the call
to pci_enable_device() will fail, even if need_ioport
is false, we need to use pci_enable_device_mem() here.

Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosgi-xp: link XPNET's net_device_ops to its net_device structure
Dean Nelson [Tue, 3 Feb 2009 23:16:17 +0000 (15:16 -0800)]
sgi-xp: link XPNET's net_device_ops to its net_device structure

A recent patch by Stephen Hemminger to convert XPNET to use net_device_ops and
internal net_device_stats failed to link the net_device_ops structure to the
net_device structure. See commit e8ac9c55f28482f5b2f497a8e7eb90985db237c2
("xpnet: convert devices to new API").

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agopcnet_cs: Fix misuse of the equality operator.
Cord Walter [Tue, 3 Feb 2009 23:14:05 +0000 (15:14 -0800)]
pcnet_cs: Fix misuse of the equality operator.

Signed-off-by: Cord Walter <qord@cwalter.net>
Signed-off-by: Komuro <komurojun-mbn@nifty.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agohso: add new device id's
Filip Aben [Tue, 3 Feb 2009 23:13:26 +0000 (15:13 -0800)]
hso: add new device id's

This patch adds a few device ID's. It also removes an ID that was used
in an internal engineering version of a device and will never see
commercial light. Even if this ID will be 'recycled' in the future,
which is very unlikely, we don't know what kind of device will be
behind it. Therefore it's safer to remove it.

Signed-off-by: Filip Aben <f.aben@option.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
David S. Miller [Tue, 3 Feb 2009 07:55:27 +0000 (23:55 -0800)]
Merge branch 'master' of /linux/kernel/git/torvalds/linux-2.6

15 years agodca: redesign locks to fix deadlocks
Maciej Sosnowski [Tue, 3 Feb 2009 07:26:57 +0000 (23:26 -0800)]
dca: redesign locks to fix deadlocks

Change spin_locks to irqsave to prevent dead-locks.
Protect adding and deleting to/from dca_providers list.
Drop the lock during dca_sysfs_add_req() and dca_sysfs_remove_req() calls
as they might sleep (use GFP_KERNEL allocation).

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agocassini/sungem: limit reaches -1, but 0 tested
Roel Kluin [Tue, 3 Feb 2009 07:19:50 +0000 (23:19 -0800)]
cassini/sungem: limit reaches -1, but 0 tested

while (limit--)
if (test())
break;

if (limit <= 0)
goto test_failed;

In the last iteration, limit is decremented after the test to 0.
If just thereafter test() succeeds and a break occurs, the goto
still occurs because limit is 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agonet: variables reach -1, but 0 tested
Roel Kluin [Tue, 3 Feb 2009 05:39:02 +0000 (21:39 -0800)]
net: variables reach -1, but 0 tested

while (timeout--) { ... }

timeout becomes -1 if the loop isn't ended otherwise, not 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Tue, 3 Feb 2009 03:28:58 +0000 (19:28 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI hotplug: Change link order of pciehp & acpiphp
  PCI hotplug: fakephp: Allocate PCI resources before adding the device
  PCI MSI: Fix undefined shift by 32
  PCI PM: Do not wait for buses in B2 or B3 during resume
  PCI PM: Power up devices before restoring their state
  PCI PM: Fix hibernation breakage on EeePC 701
  PCI: irq and pci_ids patch for Intel Tigerpoint DeviceIDs
  PCI PM: Fix suspend error paths and testing facility breakage

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Tue, 3 Feb 2009 03:27:00 +0000 (19:27 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/penberg/slab-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  slub: fix per cpu kmem_cache_cpu array memory leak
  kmalloc: return NULL instead of link failure

15 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Tue, 3 Feb 2009 03:26:44 +0000 (19:26 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  fbdev/atyfb: Fix DSP config on some PowerMacs & PowerBooks
  powerpc: Fix oops on some machines due to incorrect pr_debug()
  powerpc/ps3: Printing fixups for l64 to ll64 convserion drivers/net
  powerpc/5200: update device tree binding documentation
  powerpc/5200: Bugfix for PCI mapping of memory and IMMR
  powerpc/5200: update defconfigs

15 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 3 Feb 2009 03:26:29 +0000 (19:26 -0800)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched_rt: don't use first_cpu on cpumask created with cpumask_and
  sched: fix buddie group latency
  sched: clear buddies more aggressively
  sched: symmetric sync vs avg_overlap
  sched: fix sync wakeups
  cpuset: fix possible deadlock in async_rebuild_sched_domains

15 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Tue, 3 Feb 2009 03:26:06 +0000 (19:26 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (45 commits)
  V4L/DVB (10411): s5h1409: Perform s5h1409 soft reset after tuning
  V4L/DVB (10403): saa7134-alsa: saa7130 doesn't support digital audio
  V4L/DVB (10229): ivtv: fix memory leak
  V4L/DVB (10385): gspca - main: Fix memory leak when USB disconnection while streaming.
  V4L/DVB (10325): em28xx: Fix for fail to submit URB with IRQs and Pre-emption Disabled
  V4L/DVB (10317): radio-mr800: fix radio->muted and radio->stereo
  V4L/DVB (10314): cx25840: ignore TUNER_SET_CONFIG in the command callback.
  V4L/DVB (10288): af9015: bug fix: stick does not work always when plugged
  V4L/DVB (10287): af9015: fix second FE
  V4L/DVB (10270): saa7146: fix unbalanced mutex_lock/unlock
  V4L/DVB (10265): budget.c driver: Kernel oops: "BUG: unable to handle kernel paging request at ffffffff
  V4L/DVB (10261): em28xx: fix kernel panic on audio shutdown
  V4L/DVB (10257): em28xx: Fix for KWorld 330U Board
  V4L/DVB (10256): em28xx: Fix for KWorld 330U AC97
  V4L/DVB (10254): em28xx: Fix audio URB transfer buffer race condition
  V4L/DVB (10250): cx25840: fix regression: fw not loaded on first use
  V4L/DVB (10248): v4l-dvb: fix a bunch of compile warnings.
  V4L/DVB (10243): em28xx: fix compile warning
  V4L/DVB (10240): Fix obvious swapped names in v4l2_subdev logic
  V4L/DVB (10233): [PATCH] Terratec Cinergy DT XS Diversity new USB ID (0ccd:0081)
  ...

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
Linus Torvalds [Tue, 3 Feb 2009 03:24:14 +0000 (19:24 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  pxamci: enable DMA for write ops after CMD/RESP
  pxamci: replace #ifdef CONFIG_PXA27x with if (cpu_is_pxa27x())
  ricoh_mmc: Use suspend_late/resume_early
  mmci: Add support for ST Micro derivate
  mmc: Add a MX2/MX3 specific SDHC driver

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Tue, 3 Feb 2009 03:23:49 +0000 (19:23 -0800)]
Merge git://git./linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  icside: fix PCB version 6 support (v2)
  tx4939ide: typo fix and minor cleanup
  ide: add CS5536 host driver (v3)
  ide: Force VIA IDE legacy interrupts for AmigaOne boards
  IDE: Unregister and disable devices if initialization fails.
  ide: fix ide_register_port() failure handling
  ide: struct device - replace bus_id with dev_name(), dev_set_name()
  ide-cd: fix DMA for non bio-backed requests

15 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb
Linus Torvalds [Tue, 3 Feb 2009 03:20:17 +0000 (19:20 -0800)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/dvrabel/uwb

* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb:
  uwb: lock rc->rsvs_lock with spin_lock_bh()
  wusb: timeout when waiting for ASL/PZL updates in whci-hcd
  uwb: remove unused #include <version.h>'s
  wusb: return -ENOTCONN when resetting a port with no connected device
  uwb: safely remove all reservations

15 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Tue, 3 Feb 2009 03:19:50 +0000 (19:19 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: add text file detailing queue/ sysfs files
  bio.h: If they MUST be inlined, then use __always_inline
  Fix misleading comment in bio.h
  block: fix inconsistent parenthesisation of QUEUE_FLAG_DEFAULT
  block: fix oops in blk_queue_io_stat()

15 years agovirtio-pci: do not oops on config change if driver not loaded
Mark McLoughlin [Tue, 3 Feb 2009 03:03:53 +0000 (13:33 +1030)]
virtio-pci: do not oops on config change if driver not loaded

The host really shouldn't be notifying us of config changes
before the device status is VIRTIO_CONFIG_S_DRIVER or
VIRTIO_CONFIG_S_DRIVER_OK.

However, if we do happen to be interrupted while we're not
attached to a driver, we really shouldn't oops. Prevent
this simply by checking that device->driver is non-NULL
before trying to notify the driver of config changes.

Problem observed by doing a "set_link virtio.0 down" with
QEMU before the net driver had been loaded.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agomodules: Use a better scheme for refcounting
Eric Dumazet [Tue, 3 Feb 2009 03:01:36 +0000 (13:31 +1030)]
modules: Use a better scheme for refcounting

Current refcounting for modules (done if CONFIG_MODULE_UNLOAD=y) is
using a lot of memory.

Each 'struct module' contains an [NR_CPUS] array of full cache lines.

This patch uses existing infrastructure (percpu_modalloc() &
percpu_modfree()) to allocate percpu space for the refcount storage.

Instead of wasting NR_CPUS*128 bytes (on i386), we now use
nr_cpu_ids*sizeof(local_t) bytes.

On a typical distro, where NR_CPUS=8, shiping 2000 modules, we reduce
size of module files by about 2 Mbytes. (1Kb per module)

Instead of having all refcounters in the same memory node - with TLB misses
because of vmalloc() - this new implementation permits to have better
NUMA properties, since each  CPU will use storage on its preferred node,
thanks to percpu storage.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoqlge: bugfix: Add missing netif_napi_del call.
Ron Mercer [Mon, 2 Feb 2009 21:54:31 +0000 (13:54 -0800)]
qlge: bugfix: Add missing netif_napi_del call.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoqlge: bugfix: Add flash offset for second port.
Ron Mercer [Mon, 2 Feb 2009 21:54:15 +0000 (13:54 -0800)]
qlge: bugfix: Add flash offset for second port.

Without this the 2nd port gets first ports MAC addr.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoqlge: bugfix: Fix endian issue when reading flash.
Ron Mercer [Mon, 2 Feb 2009 21:53:57 +0000 (13:53 -0800)]
qlge: bugfix: Fix endian issue when reading flash.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoudp: increments sk_drops in __udp_queue_rcv_skb()
Eric Dumazet [Mon, 2 Feb 2009 21:41:57 +0000 (13:41 -0800)]
udp: increments sk_drops in __udp_queue_rcv_skb()

Commit 93821778def10ec1e69aa3ac10adee975dad4ff3 (udp: Fix rcv socket
locking) accidentally removed sk_drops increments for UDP IPV4
sockets.

This field can be used to detect incorrect sizing of socket receive
buffers.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agonet: Fix userland breakage wrt. linux/if_tunnel.h
David S. Miller [Mon, 2 Feb 2009 21:27:44 +0000 (13:27 -0800)]
net: Fix userland breakage wrt. linux/if_tunnel.h

Reported by Andrew Walrond <andrew@walrond.org>

Changeset c19e654ddbe3831252f61e76a74d661e1a755530
("gre: Add netlink interface") added an include
of linux/ip.h to linux/if_tunnel.h

We can't really let that get exposed to userspace
because this conflicts with types defined in netinet/ip.h
which userland is almost certainly going to have included
either explicitly or implicitly.

So guard this include with a __KERNEL__ ifdef.

Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agopxamci: enable DMA for write ops after CMD/RESP
Cliff Brake [Thu, 22 Jan 2009 22:07:03 +0000 (17:07 -0500)]
pxamci: enable DMA for write ops after CMD/RESP

With the PXA270 MMC hardware, there seems to be an issue of
data corruption on writes where a 4KB data block is offset
by one byte.

If we delay enabling the DMA for writes until after the CMD/RESP
has finished, the problem seems to be fixed.

related to PXA270 Erratum #91

Tested-by: Vernon Sauder <VernonInHand@gmail.com>
Signed-off-by: Cliff Brake <cbrake@bec-systems.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
15 years agopxamci: replace #ifdef CONFIG_PXA27x with if (cpu_is_pxa27x())
Cliff Brake [Thu, 22 Jan 2009 21:58:58 +0000 (16:58 -0500)]
pxamci: replace #ifdef CONFIG_PXA27x with if (cpu_is_pxa27x())

Signed-off-by: Cliff Brake <cbrake@bec-systems.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
15 years agoricoh_mmc: Use suspend_late/resume_early
philipl@overt.org [Sun, 18 Jan 2009 19:11:20 +0000 (14:11 -0500)]
ricoh_mmc: Use suspend_late/resume_early

If ricoh_mmc suspends before sdhci_pci, it will pull the card
out from under the controller, which could leave the system in
a very confused state.

Using suspend_late/resume_early ensures that sdhci_pci suspends first
and resumes second.

Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
15 years agommci: Add support for ST Micro derivate
Linus Walleij [Sun, 4 Jan 2009 14:18:54 +0000 (15:18 +0100)]
mmci: Add support for ST Micro derivate

This patch adds support for the ST Microelectronics version of
the PL180 PrimeCell. They use designer ID 0x80 and have a few
alterations/bugfixes related to open drain and HW flow control.
They also add some SDIO registers, I am unsure if these are
in ST HW only or if this is things also added in later ARM
revisions, but they are included in the mmci.h file for
completeness.

Signed-off-by: Linus Walleij <linus.walleij@ericsson.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
15 years agommc: Add a MX2/MX3 specific SDHC driver
Sascha Hauer [Tue, 6 Jan 2009 16:04:14 +0000 (17:04 +0100)]
mmc: Add a MX2/MX3 specific SDHC driver

This patch adds a MX2/MX3 specific SDHC driver. The hardware is basically
the same as in the MX1, but unlike the MX1 controller the MX2
controller just works as expected. Since the MX1 driver has more
workarounds for bugs than anything else I had no success with supporting
MX1 and MX2 in a sane way in one driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
15 years agoicside: fix PCB version 6 support (v2)
Bartlomiej Zolnierkiewicz [Mon, 2 Feb 2009 19:12:23 +0000 (20:12 +0100)]
icside: fix PCB version 6 support (v2)

We need to pass struct ide_port_info also to ide_host_register().

v2:
Fix v5/v6 mismatch noticed by Russell.

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agotx4939ide: typo fix and minor cleanup
Atsushi Nemoto [Mon, 2 Feb 2009 19:12:23 +0000 (20:12 +0100)]
tx4939ide: typo fix and minor cleanup

The bcount is greater than 0 and less than or equal to 0x10000.
Thus '(bcount & 0xffff) == 0x0000' can be simplified as 'bcount == 0x10000'.

Suggested-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agoide: add CS5536 host driver (v3)
Bartlomiej Zolnierkiewicz [Mon, 2 Feb 2009 19:12:23 +0000 (20:12 +0100)]
ide: add CS5536 host driver (v3)

This is a port of libata's pata_cs5536.c (written by Martin K. Petersen)
to IDE subsystem.

Changes done while at it:

* Reprogram PIO/MWDMA timings if needed before and after DMA transfer
  (chipset uses shared PIO/MWDMA timings).

* Fix cable detection to report 80-wires cable if BIOS set it for any
  device on a port (IDE core will do drive-side cable detection later).

* Don't disable UDMA while programming PIO timings.

* Simplify PCI/MSR support.

Pros of having IDE host driver in addition to libata's one:

* IDE is much lighter than SCSI+libata, the host driver itself is also
  a bit smaller:

   text    data     bss     dec     hex filename
   1261     496       4    1761     6e1 drivers/ata/pata_cs5536.o
   1242     128       4    1374     55e drivers/ide/cs5536.o

* This allows use of IDE features which are unavailable under libata.

v2:
* Fixes per review from Sergei:
  - simplify dependency check in Kconfig
  - use IDE_DRV_MASK also for ->drive_data
  - disable UDMA when programming MWDMA
  - program new DTC timings only when necessary
  - fix printk() level in cs5536_init_one()

* Fix patch description according to comments from Alan and Sergei.

v3:
* Smarter masking of UDMA bits per Sergei's suggestion.

Cc: Martin K. Petersen <mkp@mkp.net>
Cc: Karl Auerbach <karl@iwl.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agoide: Force VIA IDE legacy interrupts for AmigaOne boards
Gerhard Pircher [Mon, 2 Feb 2009 19:12:22 +0000 (20:12 +0100)]
ide: Force VIA IDE legacy interrupts for AmigaOne boards

The AmigaOne uses the onboard VIA IDE controller in legacy mode (like the
Pegasos).

Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net>
Cc: "Grant Likely" <grant.likely@secretlab.ca>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agoIDE: Unregister and disable devices if initialization fails.
Ian Campbell [Mon, 2 Feb 2009 19:12:22 +0000 (20:12 +0100)]
IDE: Unregister and disable devices if initialization fails.

On reboot the loop in device_shutdown gets confused by these partially
initialized devices and goes into an infinite loop. Therefore unregister
and disable these devices.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
[bart: remove leftover hwif->present clearing + update patch description]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agoide: fix ide_register_port() failure handling
Bartlomiej Zolnierkiewicz [Mon, 2 Feb 2009 19:12:21 +0000 (20:12 +0100)]
ide: fix ide_register_port() failure handling

* Factor out port freeing from ide_host_free() to ide_free_port().

* Add ide_disable_port() and use it on ide_register_port() failure.

Cc: Ian Campbell <Ian.Campbell@citrix.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agoide: struct device - replace bus_id with dev_name(), dev_set_name()
Kay Sievers [Mon, 2 Feb 2009 19:12:21 +0000 (20:12 +0100)]
ide: struct device - replace bus_id with dev_name(), dev_set_name()

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: linux-ide@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agoide-cd: fix DMA for non bio-backed requests
Borislav Petkov [Mon, 2 Feb 2009 19:12:21 +0000 (20:12 +0100)]
ide-cd: fix DMA for non bio-backed requests

This one fixes http://bugzilla.kernel.org/show_bug.cgi?id=12320.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux...
David Vrabel [Mon, 2 Feb 2009 17:52:39 +0000 (17:52 +0000)]
Merge branch 'master' of git://git./linux/kernel/git/torvalds/linux-2.6 into for-upstream

15 years agoblock: add text file detailing queue/ sysfs files
Jens Axboe [Mon, 2 Feb 2009 12:02:31 +0000 (13:02 +0100)]
block: add text file detailing queue/ sysfs files

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agobio.h: If they MUST be inlined, then use __always_inline
Alberto Bertogli [Mon, 2 Feb 2009 11:41:07 +0000 (12:41 +0100)]
bio.h: If they MUST be inlined, then use __always_inline

bvec_kmap_irq() and bvec_kunmap_irq() comments say they MUST be inlined,
so mark them as __always_inline.

Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agoFix misleading comment in bio.h
Alberto Bertogli [Mon, 2 Feb 2009 11:41:07 +0000 (12:41 +0100)]
Fix misleading comment in bio.h

The comment says "remember to add offset!", but the function already adds
it.

Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agoMerge branches 'topic/slab/fixes' and 'topic/slub/fixes' into for-linus
Pekka Enberg [Mon, 2 Feb 2009 09:18:49 +0000 (11:18 +0200)]
Merge branches 'topic/slab/fixes' and 'topic/slub/fixes' into for-linus

15 years agoblock: fix inconsistent parenthesisation of QUEUE_FLAG_DEFAULT
Jens Axboe [Mon, 2 Feb 2009 07:43:48 +0000 (08:43 +0100)]
block: fix inconsistent parenthesisation of QUEUE_FLAG_DEFAULT

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agoblock: fix oops in blk_queue_io_stat()
Jens Axboe [Mon, 2 Feb 2009 07:42:32 +0000 (08:42 +0100)]
block: fix oops in blk_queue_io_stat()

Some initial probe requests don't have disk->queue mapped yet, so we
can't rely on a non-NULL queue in blk_queue_io_stat(). Wrap it in
blk_do_io_stat().

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agofbdev/atyfb: Fix DSP config on some PowerMacs & PowerBooks
Risto Suominen [Tue, 13 Jan 2009 20:09:30 +0000 (20:09 +0000)]
fbdev/atyfb: Fix DSP config on some PowerMacs & PowerBooks

Since the complete re-write in 2.6.10, some PowerMacs (At least PowerMac 5500
and PowerMac G3 Beige rev A) with ATI Mach64 chip have suffered from unstable
columns in their framebuffer image. This seems to depend on a value (4) read
from PLL_EXT_CNTL register, which leads to incorrect DSP config parameters to
be written to the chip. This patch uses a value calculated by aty_init_pll_ct
instead, as a starting point.

There are questions as to whether this should be extended to other platforms
or maybe made dependent on specific chip types, but in the meantime, this has
been tested on various powermacs and works for them so let's commit it.

Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com>
Tested-by: Michael Pettersson <mike@it.uu.se>
Cc: <stable@kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agopowerpc: Fix oops on some machines due to incorrect pr_debug()
Benjamin Herrenschmidt [Sun, 1 Feb 2009 17:03:59 +0000 (17:03 +0000)]
powerpc: Fix oops on some machines due to incorrect pr_debug()

Recently, a patch left DEBUG enabled in the powerpc common PCI code,
resulting in an old bug in a pr_debug() statement to show up and cause
a NULL dereference on some machines.

This fixes the pr_debug() statement and reverts to DEBUG not being
force-enabled in that file.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agopowerpc/ps3: Printing fixups for l64 to ll64 convserion drivers/net
Stephen Rothwell [Tue, 13 Jan 2009 20:09:30 +0000 (20:09 +0000)]
powerpc/ps3: Printing fixups for l64 to ll64 convserion drivers/net

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agoManually revert "mlock: downgrade mmap sem while populating mlocked regions"
Linus Torvalds [Sun, 1 Feb 2009 19:00:16 +0000 (11:00 -0800)]
Manually revert "mlock: downgrade mmap sem while populating mlocked regions"

This essentially reverts commit 8edb08caf68184fb170f4f69c7445929e199eaea.

It downgraded our mmap semaphore to a read-lock while mlocking pages, in
order to allow other threads (and external accesses like "ps" et al) to
walk the vma lists and take page faults etc.  Which is a nice idea, but
the implementation does not work.

Because we cannot upgrade the lock back to a write lock without
releasing the mmap semaphore, the code had to release the lock entirely
and then re-take it as a writelock.  However, that meant that the caller
possibly lost the vma chain that it was following, since now another
thread could come in and mmap/munmap the range.

The code tried to work around that by just looking up the vma again and
erroring out if that happened, but quite frankly, that was just a buggy
hack that doesn't actually protect against anything (the other thread
could just have replaced the vma with another one instead of totally
unmapping it).

The only way to downgrade to a read map _reliably_ is to do it at the
end, which is likely the right thing to do: do all the 'vma' operations
with the write-lock held, then downgrade to a read after completing them
all, and then do the "populate the newly mlocked regions" while holding
just the read lock.  And then just drop the read-lock and return to user
space.

The (perhaps somewhat simpler) alternative is to just make all the
callers of mlock_vma_pages_range() know that the mmap lock got dropped,
and just re-grab the mmap semaphore if it needs to mlock more than one
vma region.

So we can do this "downgrade mmap sem while populating mlocked regions"
thing right, but the way it was done here was absolutely not correct.
Thus the revert, in the expectation that we will do it all correctly
some day.

Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoV4L/DVB (10411): s5h1409: Perform s5h1409 soft reset after tuning
Devin Heitmueller [Mon, 26 Jan 2009 06:07:59 +0000 (03:07 -0300)]
V4L/DVB (10411): s5h1409: Perform s5h1409 soft reset after tuning

Just like with the s5h1411, the s5h1409 needs a soft-reset in order for it
to know that the tuner has been told to change frequencies.  This change
changes the behavior from "random tuning times between 500ms to complete
tuning lock failures" to "tuning lock consistently within 700ms".

Thanks to Robert Krakora <rob.krakora@messagenetsystems.com> for doing
initial testing of the patch on the KWorld 330U.

Thanks to Andy Walls <awalls@radix.net> for doing testing of the patch on
the HVR-1600.

Thanks to Michael Krufky <mkrufky@linuxtv.org> for doing additional testing.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (10403): saa7134-alsa: saa7130 doesn't support digital audio
Mauro Carvalho Chehab [Sat, 31 Jan 2009 11:09:33 +0000 (08:09 -0300)]
V4L/DVB (10403): saa7134-alsa: saa7130 doesn't support digital audio

According with saa7130 public datasheet, saa7130 doesn't support
digital audio. This is also confirmed by experimental tests. So, it
doesn't make sense to let saa7134-alsa register for those chipsets.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agonet: packet socket packet_lookup_frame fix
Sebastiano Di Paola [Fri, 30 Jan 2009 23:37:17 +0000 (23:37 +0000)]
net: packet socket packet_lookup_frame fix

packet_lookup_frames() fails to get user frame if current frame header
status contains extra flags.
This is due to the wrong assumption on the operators precedence during
frame status tests.
Fixed by forcing the right operators precedence order with explicit brackets.

Signed-off-by: Paolo Abeni <paolo.abeni@gmail.com>
Signed-off-by: Sebastiano Di Paola <sebastiano.dipaola@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosched_rt: don't use first_cpu on cpumask created with cpumask_and
Rusty Russell [Sat, 31 Jan 2009 12:51:24 +0000 (23:21 +1030)]
sched_rt: don't use first_cpu on cpumask created with cpumask_and

cpumask_and() only initializes nr_cpu_ids bits, so the (deprecated)
first_cpu() might find one of those uninitialized bits if nr_cpu_ids
is less than NR_CPUS (as it can be for CONFIG_CPUMASK_OFFSTACK).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agosched: fix buddie group latency
Peter Zijlstra [Wed, 28 Jan 2009 13:51:40 +0000 (14:51 +0100)]
sched: fix buddie group latency

Similar to the previous patch, by not clearing buddies we can select entities
past their run quota, which can increase latency. This means we have to clear
group buddies as well.

Do not use the group clear for pick_next_task(), otherwise that'll get O(n^2).

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agosched: clear buddies more aggressively
Mike Galbraith [Wed, 28 Jan 2009 13:51:39 +0000 (14:51 +0100)]
sched: clear buddies more aggressively

It was noticed that a task could get re-elected past its run quota due to buddy
affinities. This could increase latency a little. Cure it by more aggresively
clearing buddy state.

We do so in two situations:
 - when we force preempt
 - when we select a buddy to run

Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agosched: symmetric sync vs avg_overlap
Peter Zijlstra [Wed, 28 Jan 2009 13:51:38 +0000 (14:51 +0100)]
sched: symmetric sync vs avg_overlap

Reinstate the weakening of the sync hint if set. This yields a more
symmetric usage of avg_overlap.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agosched: fix sync wakeups
Peter Zijlstra [Mon, 26 Jan 2009 16:56:17 +0000 (17:56 +0100)]
sched: fix sync wakeups

Pawel Dziekonski reported that the openssl benchmark and his
quantum chemistry application both show slowdowns due to the
scheduler under-parallelizing execution.

The reason are pipe wakeups still doing 'sync' wakeups which
overrides the normal buddy wakeup logic - even if waker and
wakee are loosely coupled.

Fix an inversion of logic in the buddy wakeup code.

Reported-by: Pawel Dziekonski <dzieko@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoMerge branch 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 31 Jan 2009 23:56:23 +0000 (15:56 -0800)]
Merge branch 'header-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (90 commits)
  headers_check fix: x86, swab.h
  headers_check fix: x86, sigcontext32.h
  headers_check fix: x86, sigcontext.h
  headers_check fix: x86, ptrace-abi.h
  headers_check fix: x86, mtrr.h
  headers_check fix: x86, mce.h
  headers_check fix: x86, kvm.h
  headers_check fix: x86, e820.h
  headers_check fix: linux/rtnetlink.h
  headers_check fix: linux/nubus.h
  headers_check fix: video/uvesafb.h
  headers_check fix: video/sisfb.h
  headers_check fix: sound/hdsp.h
  headers_check fix: mtd/inftl-user.h
  headers_check fix: linux/virtio_net.h
  headers_check fix: linux/virtio_console.h
  headers_check fix: linux/virtio_blk.h
  headers_check fix: linux/videodev.h
  headers_check fix: linux/video_encoder.h
  headers_check fix: linux/video_decoder.h
  ...

15 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 31 Jan 2009 23:55:05 +0000 (15:55 -0800)]
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:
  generic-ipi: use per cpu data for single cpu ipi calls
  cpumask: convert lib/smp_processor_id to new cpumask ops
  signals, debug: fix BUG: using smp_processor_id() in preemptible code in print_fatal_signal()

15 years agoMerge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 31 Jan 2009 23:54:30 +0000 (15:54 -0800)]
Merge branch 'irq-fixes-for-linus' of git://git./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:
  irq: export __set_irq_handler() and handle_level_irq()

15 years agoMerge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 31 Jan 2009 23:54:06 +0000 (15:54 -0800)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  hrtimer: prevent negative expiry value after clock_was_set()
  hrtimers: allow the hot-unplugging of all cpus
  hrtimers: increase clock min delta threshold while interrupt hanging

15 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 31 Jan 2009 23:53:30 +0000 (15:53 -0800)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, ds, bts: cleanup/fix DS configuration
  ring-buffer: reset timestamps when ring buffer is reset
  trace: set max latency variable to zero on default
  trace: stop all recording to ring buffer on ftrace_dump
  trace: print ftrace_dump at KERN_EMERG log level
  ring_buffer: reset write when reserve buffer fail
  tracing/function-graph-tracer: fix a regression while suspend to disk
  ring-buffer: fix alignment problem

15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 31 Jan 2009 23:52:46 +0000 (15:52 -0800)]
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 setup: fix asm constraints in vesa_store_edid
  xen: make sysfs files behave as their names suggest
  x86: tone down mtrr_trim_uncached_memory() warning
  x86: correct the CPUID pattern for MSR_IA32_MISC_ENABLE availability

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
Linus Torvalds [Sat, 31 Jan 2009 23:52:25 +0000 (15:52 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  leds: Fix bounds checking of wm8350->pmic.led
  regulator: move bq24022 init back to module_init instead of subsys_initcall

15 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Sat, 31 Jan 2009 23:52:02 +0000 (15:52 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (27 commits)
  MIPS: Alchemy: time.c build fix
  MIPS: RB532: Export rb532_gpio_set_func()
  MIPS: RB532: Update headers
  MIPS: RB532: Simplify dev3 init
  MIPS: RB532: Remove {get,set}_434_reg()
  MIPS: RB532: Move dev3 init code to devices.c
  MIPS: RB532: Fix set_latch_u5()
  MIPS: RB532: Fix init of rb532_dev3_ctl_res
  MIPS: RB532: Use driver_data instead of platform_data
  MIPS: RB532: Detect uart type, add platform device
  MIPS: RB532: remove useless CF GPIO initialisation
  MIPS: RB532: Auto disable GPIO alternate function
  MIPS: RB532: Add set_type() function to IRQ struct.
  MIPS: RC32434: Define io_map_base for PCI controller
  MIPS: RB532: Fix bit swapping in rb532_set_bit()
  MIPS: Use hardware watchpoints on all R1 and R2 CPUs.
  MIPS: Read watch registers with interrupts disabled.
  MIPS: Fix a typo in watchpoint register structure.
  MIPS: TXx9: Add support for TX4939 internal RTC
  MIPS: R2: Fix broken installation of cache error handler.
  ...

15 years agoFix memory corruption in console selection
Mikulas Patocka [Fri, 30 Jan 2009 20:27:14 +0000 (15:27 -0500)]
Fix memory corruption in console selection

Fix an off-by-two memory error in console selection.

The loop below goes from sel_start to sel_end (inclusive), so it writes
one more character.  This one more character was added to the allocated
size (+1), but it was not multiplied by an UTF-8 multiplier.

This patch fixes a memory corruption when UTF-8 console is used and the
user selects a few characters, all of them 3-byte in UTF-8 (for example
a frame line).

When memory redzones are enabled, a redzone corruption is reported.
When they are not enabled, trashing of random memory occurs.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Sat, 31 Jan 2009 23:50:43 +0000 (15:50 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  igb: fix link reporting when using sgmii
  igb: prevent skb_over panic w/ mtu smaller than 1K
  igb: Fix DCA errors and do not use context index for 82576
  ipv6: compile fix for ip6mr.c
  packet: Avoid lock_sock in mmap handler
  sfc: Replace stats_enabled flag with a disable count
  sfc: SFX7101/SFT9001: Fix AN advertisements
  sfc: SFT9001: Always enable XNP exchange on SFT9001 rev B
  sfc: Update board info for hardware monitor on SFN4111T-R5 and later
  sfc: Test for PHYXS faults whenever we cannot test link state bits
  sfc: Reinitialise the PHY completely in case of a PHY or NIC reset
  sfc: Fix post-reset MAC selection
  sfc: SFN4111T: Fix GPIO sharing between I2C and FLASH_CFG_1
  sfc: SFT9001: Fix speed reporting in 1G PHY loopback
  sfc: SFX7101: Remove workaround for bad link training
  sfc: SFT9001: Enable robust link training
  sky2: fix hard hang with netconsoling and iface going up

15 years agoStop playing silly games with the VM_ACCOUNT flag
Linus Torvalds [Sat, 31 Jan 2009 23:08:56 +0000 (15:08 -0800)]
Stop playing silly games with the VM_ACCOUNT flag

The mmap_region() code would temporarily set the VM_ACCOUNT flag for
anonymous shared mappings just to inform shmem_zero_setup() that it
should enable accounting for the resulting shm object.  It would then
clear the flag after calling ->mmap (for the /dev/zero case) or doing
shmem_zero_setup() (for the MAP_ANON case).

This just resulted in vma merge issues, but also made for just
unnecessary confusion.  Use the already-existing VM_NORESERVE flag for
this instead, and let shmem_{zero|file}_setup() just figure it out from
that.

This also happens to make it obvious that the new DRI2 GEM layer uses a
non-reserving backing store for its object allocation - which is quite
possibly not intentional.  But since I didn't want to change semantics
in this patch, I left it alone, and just updated the caller to use the
new flag semantics.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoigb: fix link reporting when using sgmii
Alexander Duyck [Sat, 31 Jan 2009 08:53:18 +0000 (00:53 -0800)]
igb: fix link reporting when using sgmii

When using sgmii the link was not being properly passed up to the driver
from the underlying link management functions.  This change corrects it so
that get_link_status is cleared when a link has been found.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoigb: prevent skb_over panic w/ mtu smaller than 1K
Alexander Duyck [Sat, 31 Jan 2009 08:52:57 +0000 (00:52 -0800)]
igb: prevent skb_over panic w/ mtu smaller than 1K

A panic has been observed with frame sizes smaller than 1K.  This has been
root caused to the hardware spanning larger frames across multiple buffers
and then reporting the original frame size in the first descriptor.  To
prevent this we can enable set the LPE bit which in turn will restrict
packet sizes to those set in the RLPML register.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoigb: Fix DCA errors and do not use context index for 82576
Alexander Duyck [Sat, 31 Jan 2009 08:52:30 +0000 (00:52 -0800)]
igb: Fix DCA errors and do not use context index for 82576

82576 was being incorrectly flagged as needing a context index.  It does not as
each ring has it's own table of 2 contexts.

Driver was registering after registering the driver instead of the other way around.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoipv6: compile fix for ip6mr.c
Dave Jones [Sat, 31 Jan 2009 08:51:49 +0000 (00:51 -0800)]
ipv6: compile fix for ip6mr.c

net/ipv6/ip6mr.c: In function 'pim6_rcv':
net/ipv6/ip6mr.c:368: error: implicit declaration of function 'csum_ipv6_magic'

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agox86 setup: fix asm constraints in vesa_store_edid
Andreas Schwab [Tue, 27 Jan 2009 20:45:57 +0000 (21:45 +0100)]
x86 setup: fix asm constraints in vesa_store_edid

Impact: fix potential miscompile (currently believed non-manifest)

As the comment explains, the VBE DDC call can clobber any register.
Tell the compiler about that fact.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agopacket: Avoid lock_sock in mmap handler
Herbert Xu [Fri, 30 Jan 2009 22:12:06 +0000 (14:12 -0800)]
packet: Avoid lock_sock in mmap handler

As the mmap handler gets called under mmap_sem, and we may grab
mmap_sem elsewhere under the socket lock to access user data, we
should avoid grabbing the socket lock in the mmap handler.

Since the only thing we care about in the mmap handler is for
pg_vec* to be invariant, i.e., to exclude packet_set_ring, we
can achieve this by simply using a new mutex.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Martin MOKREJŠ <mmokrejs@ribosome.natur.cuni.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: Replace stats_enabled flag with a disable count
Ben Hutchings [Thu, 29 Jan 2009 18:00:07 +0000 (18:00 +0000)]
sfc: Replace stats_enabled flag with a disable count

Currently we use a spin-lock to serialise statistics fetches and also
to inhibit them for short periods of time, plus a flag to
enable/disable statistics fetches for longer periods of time, during
online reset.  This was apparently insufficient to deal with the several
reasons for stats being disabled.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: SFX7101/SFT9001: Fix AN advertisements
Ben Hutchings [Thu, 29 Jan 2009 17:59:37 +0000 (17:59 +0000)]
sfc: SFX7101/SFT9001: Fix AN advertisements

All 10Xpress PHYs require autonegotiation all the time; enforce this
in the set_settings() method and do not treat it as a workaround.

Remove claimed support for 100M HD mode since it is not supported by
current firmware.

Do not set speed override bits when AN is enabled, and do not use
register 1.49192 for AN configuration as it can override what we set
elsewhere.

Always set the AN selector bits to 1 (802.3).

Fix confusion between Next Page and Extended Next Page.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: SFT9001: Always enable XNP exchange on SFT9001 rev B
Ben Hutchings [Thu, 29 Jan 2009 17:52:11 +0000 (17:52 +0000)]
sfc: SFT9001: Always enable XNP exchange on SFT9001 rev B

This workaround is not specific to rev A.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: Update board info for hardware monitor on SFN4111T-R5 and later
Ben Hutchings [Thu, 29 Jan 2009 17:51:48 +0000 (17:51 +0000)]
sfc: Update board info for hardware monitor on SFN4111T-R5 and later

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: Test for PHYXS faults whenever we cannot test link state bits
Steve Hodgson [Thu, 29 Jan 2009 17:51:15 +0000 (17:51 +0000)]
sfc: Test for PHYXS faults whenever we cannot test link state bits

Depending on the loopback mode, there may be no pertinent link state
bits.  In this case we test the PHYXS RX fault bit instead.  Make
sure to do this in all cases where there are no link state bits.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: Reinitialise the PHY completely in case of a PHY or NIC reset
Steve Hodgson [Thu, 29 Jan 2009 17:50:51 +0000 (17:50 +0000)]
sfc: Reinitialise the PHY completely in case of a PHY or NIC reset

In particular, set pause advertising bits properly.

A PHY reset is not necessary to recover from the register self-test,
so use a "invisible" reset there instead.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: Fix post-reset MAC selection
Steve Hodgson [Thu, 29 Jan 2009 17:49:59 +0000 (17:49 +0000)]
sfc: Fix post-reset MAC selection

Modify falcon_switch_mac() to always set NIC_STAT_REG, even if the the
MAC is the same as it was before.  This ensures that the value is
correct after an online reset.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: SFN4111T: Fix GPIO sharing between I2C and FLASH_CFG_1
Ben Hutchings [Thu, 29 Jan 2009 17:49:29 +0000 (17:49 +0000)]
sfc: SFN4111T: Fix GPIO sharing between I2C and FLASH_CFG_1

Change sfn4111t_reset() to change only GPIO output enables so that it
doesn't break subsequent I2C operations.

Update comments to explain exactly what we're doing.

Add a short sleep to make sure the FLASH_CFG_1 value is latched before
any subsequent I2C operations.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: SFT9001: Fix speed reporting in 1G PHY loopback
Steve Hodgson [Thu, 29 Jan 2009 17:49:09 +0000 (17:49 +0000)]
sfc: SFT9001: Fix speed reporting in 1G PHY loopback

Instead of disabling AN in loopback, just prevent restarting AN and
override the speed in sft9001_get_settings().

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: SFX7101: Remove workaround for bad link training
Steve Hodgson [Thu, 29 Jan 2009 17:48:43 +0000 (17:48 +0000)]
sfc: SFX7101: Remove workaround for bad link training

Early versions of the SFX7101 firmware could complete link training in
a state where it would not adequately cancel noise (Solarflare bug
10750).  We previously worked around this by resetting the PHY after
seeing many Ethernet CRC errors.  This workaround is unsafe since it
takes no account of the interval between errors; it also appears to
be unnecessary with production firmware.  Therefore remove it.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosfc: SFT9001: Enable robust link training
Steve Hodgson [Thu, 29 Jan 2009 17:48:10 +0000 (17:48 +0000)]
sfc: SFT9001: Enable robust link training

Enable a firmware option that appears to be necessary for reliable
operation.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosky2: fix hard hang with netconsoling and iface going up
Alexey Dobriyan [Fri, 30 Jan 2009 21:45:31 +0000 (13:45 -0800)]
sky2: fix hard hang with netconsoling and iface going up

Printing anything over netconsole before hw is up and running is,
of course, not going to work.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoleds: Fix bounds checking of wm8350->pmic.led
Roel Kluin [Sat, 17 Jan 2009 15:06:40 +0000 (16:06 +0100)]
leds: Fix bounds checking of wm8350->pmic.led

Fix bounds checking of wm8350->pmic.led

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
15 years agoregulator: move bq24022 init back to module_init instead of subsys_initcall
Philipp Zabel [Sun, 18 Jan 2009 13:32:27 +0000 (14:32 +0100)]
regulator: move bq24022 init back to module_init instead of subsys_initcall

This workaround was needed when regulator/ was not linked before both
power/ and usb/otg/ in drivers/Makefile. Now that it is even linked
before mfd/, this patch makes sure that bq24022 isn't probed before the
GPIO expander is set up.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
15 years agohrtimer: prevent negative expiry value after clock_was_set()
Thomas Gleixner [Sun, 25 Jan 2009 10:31:36 +0000 (11:31 +0100)]
hrtimer: prevent negative expiry value after clock_was_set()

Impact: prevent false positive WARN_ON() in clockevents_program_event()

clock_was_set() changes the base->offset of CLOCK_REALTIME and
enforces the reprogramming of the clockevent device to expire timers
which are based on CLOCK_REALTIME. If the clock change is large enough
then the subtraction of the timer expiry value and base->offset can
become negative which triggers the warning in
clockevents_program_event().

Check the subtraction result and set a negative value to 0.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
15 years agohrtimers: allow the hot-unplugging of all cpus
Sebastien Dugue [Mon, 1 Dec 2008 13:09:07 +0000 (14:09 +0100)]
hrtimers: allow the hot-unplugging of all cpus

Impact: fix CPU hotplug hang on Power6 testbox

On architectures that support offlining all cpus (at least powerpc/pseries),
hot-unpluging the tick_do_timer_cpu can result in a system hang.

This comes from the fact that if the cpu going down happens to be the
cpu doing the tick, then as the tick_do_timer_cpu handover happens after the
cpu is dead (via the CPU_DEAD notification), we're left without ticks,
jiffies are frozen and any task relying on timers (msleep, ...) is stuck.
That's particularly the case for the cpu looping in __cpu_die() waiting
for the dying cpu to be dead.

This patch addresses this by having the tick_do_timer_cpu handover happen
earlier during the CPU_DYING notification. For this, a new clockevent
notification type is introduced (CLOCK_EVT_NOTIFY_CPU_DYING) which is triggered
in hrtimer_cpu_notify().

Signed-off-by: Sebastien Dugue <sebastien.dugue@bull.net>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agohrtimers: increase clock min delta threshold while interrupt hanging
Frederic Weisbecker [Mon, 22 Dec 2008 01:24:48 +0000 (02:24 +0100)]
hrtimers: increase clock min delta threshold while interrupt hanging

Impact: avoid timer IRQ hanging slow systems

While using the function graph tracer on a virtualized system, the
hrtimer_interrupt can hang the system on an infinite loop.

This can be caused in several situations:

 - the hardware is very slow and HZ is set too high

 - something intrusive is slowing the system down (tracing under emulation)

... and the next clock events to program are always before the current time.

This patch implements a reasonable compromise: if such a situation is
detected, we share the CPUs time in 1/4 to process the hrtimer interrupts.
This is enough to let the system running without serious starvation.

It has been successfully tested under VirtualBox with 1000 HZ and 100 HZ
with function graph tracer launched. On both cases, the clock events were
increased until about 25 ms periodic ticks, which means 40 HZ.

So we change a hard to debug hang into a warning message and a system that
still manages to limp along.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoMIPS: Alchemy: time.c build fix
Manuel Lauss [Tue, 6 Jan 2009 09:34:52 +0000 (10:34 +0100)]
MIPS: Alchemy: time.c build fix

In Linus' current -git the cpumask member is now a pointer.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: RB532: Export rb532_gpio_set_func()
Phil Sutter [Thu, 22 Jan 2009 18:32:43 +0000 (19:32 +0100)]
MIPS: RB532: Export rb532_gpio_set_func()

This kernel symbol provides a way for drivers to switch on alternate
function for a certain GPIO pin. Turning it off is done implicitly when
changing the GPIO direction, as that would be fixed when using the given
pin als alternate function.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: RB532: Update headers
Phil Sutter [Thu, 22 Jan 2009 18:28:50 +0000 (19:28 +0100)]
MIPS: RB532: Update headers

Remove the {set,get}_434_reg() prototypes, as the functions have been
removed. Also move the prototypes for {get,set}_latch_u5() to the correct
place.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: RB532: Simplify dev3 init
Phil Sutter [Mon, 19 Jan 2009 22:42:54 +0000 (23:42 +0100)]
MIPS: RB532: Simplify dev3 init

As rb532_dev3_ctl_res is not used by any platform device, it can be dropped
when not used for holding the physical address of the device 3 controller.

Also a size of one byte should suffice when ioremapping the physical
address mentioned above, as only a single byte is being read from and
written to it.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: RB532: Remove {get,set}_434_reg()
Phil Sutter [Mon, 19 Jan 2009 22:42:53 +0000 (23:42 +0100)]
MIPS: RB532: Remove {get,set}_434_reg()

These kernel symbols are unused. Also, since dev3 init has been moved to
devices.c, set_434_reg() breaks compiling as it uses dev3.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: RB532: Move dev3 init code to devices.c
Phil Sutter [Mon, 19 Jan 2009 22:42:52 +0000 (23:42 +0100)]
MIPS: RB532: Move dev3 init code to devices.c

This code doesn't belong to gpio.c, as it's completely unrelated to
GPIO. As dev1 and dev2 init code is in devices.c, it seems to be a more
adequate place.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>