firefly-linux-kernel-4.4.55.git
14 years agoMerge branches 'cxgb3', 'cxgb4', 'ehca', 'ipath', 'misc', 'nes', 'qib' and 'srp'...
Roland Dreier [Thu, 5 Aug 2010 21:27:14 +0000 (14:27 -0700)]
Merge branches 'cxgb3', 'cxgb4', 'ehca', 'ipath', 'misc', 'nes', 'qib' and 'srp' into for-next

14 years agoIB/qib: Add missing <linux/slab.h> include
David Miller [Thu, 5 Aug 2010 05:55:52 +0000 (05:55 +0000)]
IB/qib: Add missing <linux/slab.h> include

Fix build failure on sparc64 which is missing the include of
<linux/slab.h> via <asm/pci.h> that x86, powerpc, ia64, etc. have.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/ehca: Drop unnecessary NULL test
Julia Lawall [Tue, 3 Aug 2010 21:35:36 +0000 (21:35 +0000)]
IB/ehca: Drop unnecessary NULL test

list_for_each_entry binds its first argument to a non-null value, and thus
any null test on the value of that argument is superfluous.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
iterator I;
expression x;
statement S,S1,S2;
@@

I(x,...) { <...
- if (x == NULL && ...) S
  ...> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Alexander Schmidt <alexs@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Fix confusing if statement indentation
Roland Dreier [Thu, 5 Aug 2010 21:21:31 +0000 (14:21 -0700)]
RDMA/nes: Fix confusing if statement indentation

Fix confusing indentation that makes a statement look as if it's part of
an if statement when in fact it isn't.

Reported-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/ehca: Init irq tasklet before irq can happen
Alexander Schmidt [Mon, 5 Jul 2010 11:41:56 +0000 (11:41 +0000)]
IB/ehca: Init irq tasklet before irq can happen

Initialize tasklet before interrupts are requested to prevent
scheduling of an uninitialized tasklet.

Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Fix misindented code
Roland Dreier [Wed, 4 Aug 2010 21:29:31 +0000 (14:29 -0700)]
RDMA/nes: Fix misindented code

In nes_probe(), a bit of code is indented one tab stop too far.  Fix this.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Fix showing wqm_quanta
Roland Dreier [Wed, 4 Aug 2010 21:27:01 +0000 (14:27 -0700)]
RDMA/nes: Fix showing wqm_quanta

In nes_show_wqm_quanta(), the wrong value is printed.  Fix this.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Get rid of "set but not used" variables
Roland Dreier [Wed, 4 Aug 2010 21:25:40 +0000 (14:25 -0700)]
RDMA/nes: Get rid of "set but not used" variables

Delete dead code in various places that is shown by gcc 4.6's new
-Wunused-but-set-variable warnings.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Read firmware version from correct place
Miroslaw Walukiewicz [Thu, 15 Jul 2010 14:53:29 +0000 (14:53 +0000)]
RDMA/nes: Read firmware version from correct place

Signed-off-by: Mirek Walukiewicz <miroslaw.walukiewicz@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/srp: Export req_lim via sysfs
Bart Van Assche [Tue, 3 Aug 2010 14:08:45 +0000 (14:08 +0000)]
IB/srp: Export req_lim via sysfs

Export req_lim via sysfs for debugging.

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
Acked-by: David Dillow <dave@thedillows.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/srp: Make receive buffer handling more robust
Bart Van Assche [Fri, 30 Jul 2010 10:59:05 +0000 (10:59 +0000)]
IB/srp: Make receive buffer handling more robust

The current strategy in ib_srp for posting receive buffers is:

 * Post one buffer after channel establishment.
 * Post one buffer before sending an SRP_CMD or SRP_TSK_MGMT to the target.

As a result, only the first non-SRP_RSP information unit from the
target will be processed.  If that first information unit is an
SRP_T_LOGOUT, it will be processed.  On the other hand, if the
initiator receives an SRP_CRED_REQ or SRP_AER_REQ before it receives a
SRP_T_LOGOUT, the SRP_T_LOGOUT won't be processed.

We can fix this inconsistency by changing the strategy for posting
receive buffers to:

 * Post all receive buffers after channel establishment.
 * After a receive buffer has been consumed and processed, post it again.

A side effect is that the ib_post_recv() call is moved out of the SCSI
command processing path.  Since __srp_post_recv() is not called
directly any more, get rid of it and move the code directly into
srp_post_recv().  Also, move srp_post_recv() up in the file to avoid a
forward declaration.

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
Acked-by: David Dillow <dave@thedillows.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/srp: Use print_hex_dump()
Bart Van Assche [Thu, 29 Jul 2010 15:56:37 +0000 (15:56 +0000)]
IB/srp: Use print_hex_dump()

Replace an open-coded dump of the receive buffer with a call to
print_hex_dump().

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB: Rename RAW_ETY to RAW_ETHERTYPE
Aleksey Senin [Sun, 4 Jul 2010 13:55:57 +0000 (13:55 +0000)]
IB: Rename RAW_ETY to RAW_ETHERTYPE

Change abbreviated IB_QPT_RAW_ETY to IB_QPT_RAW_ETHERTYPE to make
the special QP type easier to understand.

cf http://www.mail-archive.com/linux-rdma@vger.kernel.org/msg04530.html

Signed-off-by: Aleksey Senin <alekseys@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Fix two sparse warnings
Or Gerlitz [Tue, 20 Jul 2010 12:00:20 +0000 (12:00 +0000)]
RDMA/nes: Fix two sparse warnings

Simple changes to fix warnings:

      CHECK   drivers/infiniband/hw/nes/nes_verbs.c
    nes_verbs.c:1944:45: warning: Using plain integer as NULL pointer
    nes_verbs.c:1944:48: warning: Using plain integer as NULL pointer
      CHECK   drivers/infiniband/hw/nes/nes_cm.c
    nes_cm.c:2645:43: warning: mixing different enum types
    nes_cm.c:2645:43:     int enum iw_cm_event_type  versus
    nes_cm.c:2645:43:     int enum iw_cm_event_status

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Acked-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb3: Make needlessly global iwch_l2t_send() static
Or Gerlitz [Tue, 20 Jul 2010 12:00:20 +0000 (12:00 +0000)]
RDMA/cxgb3: Make needlessly global iwch_l2t_send() static

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/iser: Make needlessly global iser_alloc_rx_descriptors() static
Or Gerlitz [Tue, 20 Jul 2010 12:00:20 +0000 (12:00 +0000)]
IB/iser: Make needlessly global iser_alloc_rx_descriptors() static

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Add timeouts when waiting for FW responses
Steve Wise [Fri, 23 Jul 2010 19:12:43 +0000 (19:12 +0000)]
RDMA/cxgb4: Add timeouts when waiting for FW responses

Don't hang a host thread if the FW stops responding.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Fix race between qib_error_qp() and receive packet processing
Ralph Campbell [Mon, 2 Aug 2010 22:39:30 +0000 (22:39 +0000)]
IB/qib: Fix race between qib_error_qp() and receive packet processing

When transitioning a QP to the error state, in progress RWQEs need to
be marked complete.  This also involves releasing the reference count
to the memory regions referenced in the SGEs.  The locking in the
receive packet processing wasn't sufficient to prevent qib_error_qp()
from modifying the r_sge state at the same time, thus leading to
kernel panics.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Limit the number of packets processed per interrupt
Ralph Campbell [Mon, 2 Aug 2010 22:39:24 +0000 (22:39 +0000)]
IB/qib: Limit the number of packets processed per interrupt

Don't processes too many packets without allowing other IRQ functions
a chance to run. Otherwise, there is a chance of getting a "soft
lockup" messages and poor application response times.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Allow writes to the diag_counters to be able to clear them
Ira Weiny [Wed, 14 Jul 2010 01:53:18 +0000 (01:53 +0000)]
IB/qib: Allow writes to the diag_counters to be able to clear them

Signed-off-by: Ira Weiny <weiny2@llnl.gov>
Acked-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Set cfgctxts to number of CPUs by default
Ralph Campbell [Wed, 21 Jul 2010 22:46:11 +0000 (22:46 +0000)]
IB/qib: Set cfgctxts to number of CPUs by default

Up to now, we have set the number of available user contexts based on
the number of hardware contexts which is set according to the number
of available CPUs.  This was fine since most CPUs had a power of two
number of cores and the chip supported 4, 8, or 16 user contexts.  Now
that some systems have 12 cores, the default isn't optimal and should
be set to 12 even though 16 hardware contexts need to be enabled.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Set/reset the EP timer inside EP lock
Steve Wise [Fri, 23 Jul 2010 19:12:37 +0000 (19:12 +0000)]
RDMA/cxgb4: Set/reset the EP timer inside EP lock

Endpoint timer manipulation needs to be done inside the lock.  Otherwise
we can get into a situation where a timer is stopped before it is started,
which hits the WARN_ON() in stop_ep_timer().

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Use correct control txq
Steve Wise [Fri, 23 Jul 2010 19:12:32 +0000 (19:12 +0000)]
RDMA/cxgb4: Use correct control txq

There is only one control txq per tx channel.  So use the port number
as the queue index when sending.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Fix race in fini path
Steve Wise [Fri, 23 Jul 2010 19:12:27 +0000 (19:12 +0000)]
RDMA/cxgb4: Fix race in fini path

There exists a race condition where the app disconnects, which
initiates an orderly close (via rdma_fini()), concurrently with an
ingress abort condition, which initiates an abortive close operation.
Since rdma_fini() must be called without IRQs disabled, the fini can
be called after the QP has been transitioned to ERROR.  This is ok,
but we need to protect against qp->ep getting NULLed.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/cm: Check LAP state before sending an MRA
Sean Hefty [Wed, 21 Jul 2010 23:36:52 +0000 (23:36 +0000)]
IB/cm: Check LAP state before sending an MRA

NULL pointer dereferences in ib_cm_init_qp_attr() were seen by some
users.  From a crash dump, I determined that we died in
cm_init_qp_rts_attr() (it's inlined, so it doesn't show up in the
traceback) on the line labeled below:

static int cm_init_qp_rts_attr(struct cm_id_private *cm_id_priv,
                               struct ib_qp_attr *qp_attr,
                               int *qp_attr_mask)
{
        ........
        if (cm_id_priv->id.lap_state == IB_CM_LAP_UNINIT) {
                .....
        } else {
               *qp_attr_mask = IB_QP_ALT_PATH | IB_QP_PATH_MIG_STATE;
               qp_attr->alt_port_num = cm_id_priv->alt_av.port->port_num; <-die

The problem is that the rdma_cm can call ib_send_cm_mra() after a
connection has been established.  The ib_cm incorrectly assumes that
the MRA is in response to a LAP (load alternate path) message, even
though no LAP message has been received.  The ib_cm needs to check the
lap_state before sending an MRA if the cm_id state is established.

Reported-by: Arthur Kepner <akepner@sgi.com>
Reported-by: Josh England <jjengla@gmail.com>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Fix hangs on ifdown
Faisal Latif [Sun, 4 Jul 2010 00:17:59 +0000 (00:17 +0000)]
RDMA/nes: Fix hangs on ifdown

When ib_unregister_device() is called from netdev stop during ifdown,
it sometimes hangs. Changes made to indicate port_err to ib_dispatch_event()
during netdev stop and port_active during netdev open. The
ib_unregister_device() is only called during remove of the module.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Store and print eeprom version
Chien Tung [Wed, 9 Jun 2010 20:19:53 +0000 (20:19 +0000)]
RDMA/nes: Store and print eeprom version

Read and print eeprom version and save it off for later use.
Also delete a tab.

Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Convert pci_table entries to PCI_VDEVICE
Peter Huewe [Thu, 15 Jul 2010 19:01:21 +0000 (19:01 +0000)]
RDMA/nes: Convert pci_table entries to PCI_VDEVICE

This patch converts pci_table entries, where .subvendor=PCI_ANY_ID and
.subdevice=PCI_ANY_ID, .class=0 and .class_mask=0, to use the
PCI_VDEVICE macro, and thus improves readability.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/ehca: Catch failing ioremap()
Alexander Schmidt [Mon, 5 Jul 2010 16:19:25 +0000 (16:19 +0000)]
IB/ehca: Catch failing ioremap()

When ioremap() fails with a NULL pointer, catch the error and pass it
to the caller of create_qp() or create_cq() instead of trying to
dereference the NULL pointer later on.

Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Allow PSM to select from multiple port assignment algorithms
Dave Olson [Thu, 17 Jun 2010 23:13:49 +0000 (23:13 +0000)]
IB/qib: Allow PSM to select from multiple port assignment algorithms

We used to allow only full specification, or using all contexts within
an HCA before moving to the next HCA.  We now allow an additional
method -- round-robining through HCAs -- and make that the default.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Turn off IB latency mode
Ralph Campbell [Wed, 23 Jun 2010 15:58:31 +0000 (15:58 +0000)]
IB/qib: Turn off IB latency mode

Turn off IB latency mode. This improves link quality for slower
process chips.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Use generic_file_llseek
Arnd Bergmann [Wed, 7 Jul 2010 21:40:06 +0000 (21:40 +0000)]
IB/qib: Use generic_file_llseek

When the default llseek action gets changed to no_llseek, all file
systems relying on the current behaviour need to set explicit .llseek
operations.

In case of qib_fs, we want the files to be seekable, so
generic_file_llseek fits best.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Support variable sized work requests
Steve Wise [Thu, 10 Jun 2010 19:03:00 +0000 (19:03 +0000)]
RDMA/cxgb4: Support variable sized work requests

T4 EQ entries are in multiples of 64 bytes.  Currently the RDMA SQ and
RQ use fixed sized entries composed of 4 EQ entries for the SQ and 2
EQ entries for the RQ.  For optimial latency with small IO, we need to
change this so the HW only needs to DMA the EQ entries actually used
by a given work request.

Implementation:

- add wq_pidx counter to track where we are in the EQ.  cidx/pidx are
  used for the sw sq/rq tracking and flow control.

- the variable part of work requests is the SGL.  Add new functions to
  build the SGL and/or immediate data directly in the EQ memory
  wrapping when needed.

- adjust the min burst size for the EQ contexts to 64B.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb3: Clean up signed check of unsigned variable
Dan Carpenter [Mon, 19 Jul 2010 20:30:14 +0000 (20:30 +0000)]
RDMA/cxgb3: Clean up signed check of unsigned variable

Q_FREECNT() returns the number of spaces free.  This should never be a
negative amount.  Also the num_wrs is an unsigned int so it can never
be less than zero.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Remove dependency on __GFP_NOFAIL
David Rientjes [Wed, 21 Jul 2010 02:44:56 +0000 (02:44 +0000)]
RDMA/cxgb4: Remove dependency on __GFP_NOFAIL

The alloc_skb() in various allocations are failable, so remove
__GFP_NOFAIL from their masks.

Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Add module option to tweak delayed ack
Steve Wise [Wed, 23 Jun 2010 15:46:49 +0000 (15:46 +0000)]
RDMA/cxgb4: Add module option to tweak delayed ack

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/ipath: Fix probe failure path
Ben Hutchings [Sat, 12 Jun 2010 02:25:09 +0000 (02:25 +0000)]
IB/ipath: Fix probe failure path

The failure path in ipath_init_one() does not match the cleanup code
in ipath_remove_one() and appears to leave interrupts enabled in some
cases.  Change it to match.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/ehca: Fix bitmask handling for lock_hcalls
Alexander Schmidt [Thu, 10 Jun 2010 09:06:53 +0000 (09:06 +0000)]
IB/ehca: Fix bitmask handling for lock_hcalls

Fix reading hcall locking capability bit from device capabilities.

Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Avoid variable-length array
Ralph Campbell [Thu, 3 Jun 2010 00:21:07 +0000 (00:21 +0000)]
IB/qib: Avoid variable-length array

Rather than use a variable size array allocation on the stack,
define a constant for the maximum array size possible.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Remove unneeded NULL check
Roland Dreier [Mon, 19 Jul 2010 20:13:09 +0000 (13:13 -0700)]
RDMA/cxgb4: Remove unneeded NULL check

The rest of the code seems to assume that ep->com.cm_id can't be NULL,
so remove an unneeded test.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Remove unneeded assignment
Dan Carpenter [Mon, 31 May 2010 14:00:53 +0000 (14:00 +0000)]
RDMA/cxgb4: Remove unneeded assignment

We don't need to assign rpl here, we do that later on.

Signed-off-by: Dan Carpenter <error27@gmail.com>
[ Indeed this assignment makes no sense, since skb is set to NULL a
  couple of lines before.  - Roland ]

Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/nes: Rewrite expression to avoid undefined semantics
Roland Dreier [Wed, 14 Jul 2010 20:29:21 +0000 (13:29 -0700)]
RDMA/nes: Rewrite expression to avoid undefined semantics

Change code like

x = expr(++x)

that assigns to x twice without a sequence point in between to the
intended (and well-defined)

x = expr(x + 1)

Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/umad: Remove unused-but-set variable 'already_dead'
Roland Dreier [Wed, 14 Jul 2010 20:25:04 +0000 (13:25 -0700)]
IB/umad: Remove unused-but-set variable 'already_dead'

Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Sun, 11 Jul 2010 20:35:34 +0000 (13:35 -0700)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: Fix autoloading of fschmd on recent Fujitsu machines
  hwmon: (coretemp) Properly label the sensors
  hwmon: (coretemp) Skip duplicate CPU entries
  hwmon: (it87) Fix in7 on IT8720F
  hwmon: (k8temp) Fix temperature reporting for ASB1 processor revisions

14 years agoMerge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
Linus Torvalds [Sun, 11 Jul 2010 20:32:55 +0000 (13:32 -0700)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c/mips: Fix error return codes from Sibyte i2c bus driver
  i2c: Fix probability check

14 years agoi2c/mips: Fix error return codes from Sibyte i2c bus driver
Guenter Roeck [Sat, 10 Jul 2010 07:42:47 +0000 (09:42 +0200)]
i2c/mips: Fix error return codes from Sibyte i2c bus driver

Sibyte i2c bus driver returns non-descriptive error values.
Update to return error values as defined in Documentation/i2c/fault-codes.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
14 years agoi2c: Fix probability check
Jean Delvare [Sat, 10 Jul 2010 07:42:46 +0000 (09:42 +0200)]
i2c: Fix probability check

The new unified probing function differs from the original code, and
the preliminary test whether probing is possible must be updated
accordingly.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
14 years agohwmon: Fix autoloading of fschmd on recent Fujitsu machines
Jean Delvare [Fri, 9 Jul 2010 14:22:51 +0000 (16:22 +0200)]
hwmon: Fix autoloading of fschmd on recent Fujitsu machines

Fujitsu slightly changed the DMI strings in their recent machines,
(for example the D2778) and this breaks the automatic loading of the
needed fschmd driver. Being more tolerant on string comparison fixes
the issue.

This closes bug #15634:
https://bugzilla.kernel.org/show_bug.cgi?id=15634

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Sergey Spiridonov <sena@hurd.homeunix.org>
Cc: Hans de Goede <hdegoede@redhat.com>
14 years agohwmon: (coretemp) Properly label the sensors
Jean Delvare [Fri, 9 Jul 2010 14:22:51 +0000 (16:22 +0200)]
hwmon: (coretemp) Properly label the sensors

Don't assume that CPU entry number and core ID always match. It
worked in the simple cases (single CPU, no HT) but fails on
multi-CPU systems.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Huaxu Wan <huaxu.wan@intel.com>
Cc: stable@kernel.org
14 years agohwmon: (coretemp) Skip duplicate CPU entries
Jean Delvare [Fri, 9 Jul 2010 14:22:49 +0000 (16:22 +0200)]
hwmon: (coretemp) Skip duplicate CPU entries

On hyper-threaded CPUs, each core appears twice in the CPU list. Skip
the second entry to avoid duplicate sensors.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Huaxu Wan <huaxu.wan@intel.com>
Cc: stable@kernel.org
14 years agohwmon: (it87) Fix in7 on IT8720F
Jean Delvare [Fri, 9 Jul 2010 14:22:48 +0000 (16:22 +0200)]
hwmon: (it87) Fix in7 on IT8720F

The IT8720F has no VIN7 pin, so VCCH should always be routed
internally to VIN7 with an internal divider. Curiously, there still
is a configuration bit to control this, which means it can be set
incorrectly. And even more curiously, many boards out there are
improperly configured, even though the IT8720F datasheet claims that
the internal routing of VCCH to VIN7 is the default setting. So we
force the internal routing in this case.

It turns out that all boards with the wrong setting are from Gigabyte,
so I suspect a BIOS bug. But it's easy enough to workaround in the
driver, so let's do it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jean-Marc Spaggiari <jean-marc@spaggiari.org>
Cc: stable@kernel.org
14 years agohwmon: (k8temp) Fix temperature reporting for ASB1 processor revisions
Andreas Herrmann [Fri, 9 Jul 2010 14:22:47 +0000 (16:22 +0200)]
hwmon: (k8temp) Fix temperature reporting for ASB1 processor revisions

Reported temperature for ASB1 CPUs is too high.
Add ASB1 CPU revisions (these are also non-desktop variants) to the
list of CPUs for which the temperature fixup is not required.

Example: (from LENOVO ThinkPad Edge 13, 01972NG, system was idle)

  Current kernel reports

  $ sensors
  k8temp-pci-00c3
  Adapter: PCI adapter
  Core0 Temp:  +74.0 C
  Core0 Temp:  +70.0 C
  Core1 Temp:  +69.0 C
  Core1 Temp:  +70.0 C

  With this patch I have

  $ sensors
  k8temp-pci-00c3
  Adapter: PCI adapter
  Core0 Temp:  +54.0 C
  Core0 Temp:  +51.0 C
  Core1 Temp:  +48.0 C
  Core1 Temp:  +49.0 C

Cc: stable@kernel.org [.32.x .33.x, .34.x]
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
14 years agoIB/qib: Use request_firmware() to load SD7220 firmware
Ben Hutchings [Thu, 1 Jul 2010 20:37:20 +0000 (20:37 +0000)]
IB/qib: Use request_firmware() to load SD7220 firmware

Extract the microcode for the QLogic QLE7220 series IB HCA and use the
kernel microcode request facility to load the microcode.  This
supports Debian Linux's requirements to separate microcode which
doesn't have open source code available from the device driver.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Thu, 8 Jul 2010 19:20:54 +0000 (12:20 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: Fix world-writable child interface control sysfs attributes
  IB/qib: Clean up properly if qib_init() fails
  IB/qib: Completion queue callback needs to be single threaded
  IB/qib: Update 7322 serdes tables
  IB/qib: Clear 6120 hardware error register
  IB/qib: Clear eager buffer memory for each new process
  IB/qib: Mask hardware error during link reset
  IB/qib: Don't mark VL15 bufs as WC to avoid a rare 7322 chip problem
  RDMA/cxgb4: Derive smac_idx from port viid
  RDMA/cxgb4: Avoid false GTS CIDX_INC overflows
  RDMA/cxgb4: Don't call abort_connection() for active connect failures
  RDMA/cxgb4: Use the DMA state API instead of the pci equivalents

14 years agoMerge branches 'cxgb4', 'ipoib' and 'qib' into for-next
Roland Dreier [Thu, 8 Jul 2010 16:10:24 +0000 (09:10 -0700)]
Merge branches 'cxgb4', 'ipoib' and 'qib' into for-next

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Thu, 8 Jul 2010 15:20:41 +0000 (08:20 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Enable beep on Realtek codecs with PCI SSID override
  ALSA: usb-audio - Add volume resolution quirk for some Logitech webcams
  ALSA: hda - Add Macbook 5,2 quirk
  ALSA: hda - Fix uninitialized variable

14 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Thu, 8 Jul 2010 15:06:40 +0000 (08:06 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  writeback: simplify the write back thread queue
  writeback: split writeback_inodes_wb
  writeback: remove writeback_inodes_wbc
  fs-writeback: fix kernel-doc warnings
  splice: check f_mode for seekable file
  splice: direct_splice_actor() should not use pos in sd

14 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Thu, 8 Jul 2010 15:05:43 +0000 (08:05 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix userspace build of ptrace.h
  powerpc: Fix default_machine_crash_shutdown #ifdef botch
  powerpc: Fix logic error in fixup_irqs
  powerpc/iseries: Fix possible null pointer dereference in iSeries_pcibios_fixup_resources
  powerpc: Linux cannot run with 0 cores
  powerpc: Fix feature-fixup tests for gcc 4.5
  powerpc: Disable SPARSE_IRQ by default
  powerpc: Fix compile errors in prom_init_check for gcc 4.5
  powerpc: Fix module building for gcc 4.5 and 64 bit
  powerpc/perf_event: Fix for power_pmu_disable()

14 years agoMerge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 8 Jul 2010 15:02:18 +0000 (08:02 -0700)]
Merge branch 's5p-fixes-for-linus' of git://git./linux/kernel/git/kgene/linux-samsung

* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: SAMSUNG: Fix on wrong function name for S5PV210 sdhci0
  ARM: S5P6442: Fix PLL setting announce message.
  ARM: SAMSUNG: Fix build without SDHCI controllers for S3C64XX
  ARM: S5PV210: Correct clock register properties
  ARM: S5P: Bug fix on external interrupt for S5P SoCs

14 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Thu, 8 Jul 2010 14:55:26 +0000 (16:55 +0200)]
Merge branch 'fix/misc' into for-linus

14 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Thu, 8 Jul 2010 14:55:02 +0000 (16:55 +0200)]
Merge branch 'fix/hda' into for-linus

14 years agopowerpc: Fix userspace build of ptrace.h
Sam Ravnborg [Sun, 9 May 2010 06:52:31 +0000 (08:52 +0200)]
powerpc: Fix userspace build of ptrace.h

Build of ptrace.h failed for assembly because it
pulls in stdint.h.
Use exportable types (__u32, __u64) to avoid the dependency
on stdint.h.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Andrey Volkov <avolkov@varma-el.com>
Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc: Fix default_machine_crash_shutdown #ifdef botch
Paul E. McKenney [Tue, 15 Jun 2010 14:48:39 +0000 (14:48 +0000)]
powerpc: Fix default_machine_crash_shutdown #ifdef botch

crash_kexec_wait_realmode() is defined only if CONFIG_PPC_STD_MMU_64
and CONFIG_SMP, but is called if CONFIG_PPC_STD_MMU_64 even if !CONFIG_SMP.
Fix the conditional compilation around the invocation.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc: Fix logic error in fixup_irqs
Johannes Berg [Wed, 16 Jun 2010 00:09:35 +0000 (00:09 +0000)]
powerpc: Fix logic error in fixup_irqs

When SPARSE_IRQ is set, irq_to_desc() can
return NULL. While the code here has a
check for NULL, it's not really correct.
Fix it by separating the check for it.

This fixes CPU hot unplug for me.

Reported-by: Alastair Bridgewater <alastair.bridgewater@gmail.com>
Cc: stable@kernel.org [2.6.32+]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc/iseries: Fix possible null pointer dereference in iSeries_pcibios_fixup_resources
Denis Kirjanov [Wed, 16 Jun 2010 05:16:59 +0000 (05:16 +0000)]
powerpc/iseries: Fix possible null pointer dereference in iSeries_pcibios_fixup_resources

I don't know if this is a right fix for the problem
since of_get_property can return NULL.
Since iseries_device_information is used only for informational purpose,
we can skip this function without valid HvSubBusNumber number.

Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc: Linux cannot run with 0 cores
Anton Blanchard [Thu, 17 Jun 2010 14:33:06 +0000 (14:33 +0000)]
powerpc: Linux cannot run with 0 cores

If we configure with CONFIG_SMP=n or set NR_CPUS less than the number of
SMT threads we will set the max cores property to 0 in the
ibm,client-architecture-support structure. On new versions of firmware that
understand this property it obliges and terminates our partition.

Use DIV_ROUND_UP so we handle not only the CONFIG_SMP=n case but also the
case where NR_CPUS isn't a multiple of the number of SMT threads.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc: Fix feature-fixup tests for gcc 4.5
Stephen Rothwell [Mon, 28 Jun 2010 21:08:29 +0000 (21:08 +0000)]
powerpc: Fix feature-fixup tests for gcc 4.5

The feature-fixup test declare some extern void variables and then take
their addresses.  Fix this by declaring them as extern u8 instead.

Fixes these warnings (treated as errors):

  CC      arch/powerpc/lib/feature-fixups.o
cc1: warnings being treated as errors
arch/powerpc/lib/feature-fixups.c: In function 'test_cpu_macros':
arch/powerpc/lib/feature-fixups.c:293:23: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:294:9: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:297:2: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:297:2: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c: In function 'test_fw_macros':
arch/powerpc/lib/feature-fixups.c:306:23: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:307:9: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:310:2: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:310:2: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c: In function 'test_lwsync_macros':
arch/powerpc/lib/feature-fixups.c:321:23: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:322:9: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:326:3: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:326:3: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:329:3: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:329:3: error: taking address of expression of type 'void'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc: Disable SPARSE_IRQ by default
Yang Li [Mon, 28 Jun 2010 23:32:57 +0000 (23:32 +0000)]
powerpc: Disable SPARSE_IRQ by default

The SPARSE_IRQ considerably adds overhead to critical path of IRQ
handling.  However it doesn't benefit much in space for most systems with
limited IRQ_NR.  Should be disabled unless really necessary.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc: Fix compile errors in prom_init_check for gcc 4.5
Stephen Rothwell [Tue, 29 Jun 2010 20:04:22 +0000 (20:04 +0000)]
powerpc: Fix compile errors in prom_init_check for gcc 4.5

Just whitelist these extra compiler generated symbols.
Fixes these errors:

Error: External symbol '_restgpr0_14' referenced from prom_init.c
Error: External symbol '_restgpr0_20' referenced from prom_init.c
Error: External symbol '_restgpr0_22' referenced from prom_init.c
Error: External symbol '_restgpr0_24' referenced from prom_init.c
Error: External symbol '_restgpr0_25' referenced from prom_init.c
Error: External symbol '_restgpr0_26' referenced from prom_init.c
Error: External symbol '_restgpr0_27' referenced from prom_init.c
Error: External symbol '_restgpr0_28' referenced from prom_init.c
Error: External symbol '_restgpr0_29' referenced from prom_init.c
Error: External symbol '_restgpr0_31' referenced from prom_init.c
Error: External symbol '_savegpr0_14' referenced from prom_init.c
Error: External symbol '_savegpr0_20' referenced from prom_init.c
Error: External symbol '_savegpr0_22' referenced from prom_init.c
Error: External symbol '_savegpr0_24' referenced from prom_init.c
Error: External symbol '_savegpr0_25' referenced from prom_init.c
Error: External symbol '_savegpr0_26' referenced from prom_init.c
Error: External symbol '_savegpr0_27' referenced from prom_init.c
Error: External symbol '_savegpr0_28' referenced from prom_init.c
Error: External symbol '_savegpr0_29' referenced from prom_init.c
Error: External symbol '_savegpr0_31' referenced from prom_init.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc: Fix module building for gcc 4.5 and 64 bit
Stephen Rothwell [Tue, 29 Jun 2010 20:08:42 +0000 (20:08 +0000)]
powerpc: Fix module building for gcc 4.5 and 64 bit

Gcc 4.5 is now generating out of line register save and restore
in the function prefix and postfix when we use -Os.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agopowerpc/perf_event: Fix for power_pmu_disable()
Matt Evans [Mon, 5 Jul 2010 17:36:32 +0000 (17:36 +0000)]
powerpc/perf_event: Fix for power_pmu_disable()

When power_pmu_disable() removes the given event from a particular index into
cpuhw->event[], it shuffles down higher event[] entries.  But, this array is
paired with cpuhw->events[] and cpuhw->flags[] so should shuffle them
similarly.

If these arrays get out of sync, code such as power_check_constraints() will
fail.  This caused a bug where events were temporarily disabled and then failed
to be re-enabled; subsequent code tried to write_pmc() with its (disabled) idx
of 0, causing a message "oops trying to write PMC0".  This triggers this bug on
POWER7, running a miss-heavy test:

  perf record -e L1-dcache-load-misses -e L1-dcache-store-misses ./misstest

Signed-off-by: Matt Evans <matt@ozlabs.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 8 Jul 2010 02:56:00 +0000 (19:56 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (35 commits)
  NET: SB1250: Initialize .owner
  vxge: show startup message with KERN_INFO
  ll_temac: Fix missing iounmaps
  bridge: Clear IPCB before possible entry into IP stack
  bridge br_multicast: BUG: unable to handle kernel NULL pointer dereference
  net: Fix definition of netif_vdbg() when VERBOSE_DEBUG is defined
  net/ne: fix memory leak in ne_drv_probe()
  xfrm: fix xfrm by MARK logic
  virtio_net: fix oom handling on tx
  virtio_net: do not reschedule rx refill forever
  s2io: resolve statistics issues
  linux/net.h: fix kernel-doc warnings
  net: decreasing real_num_tx_queues needs to flush qdisc
  sched: qdisc_reset_all_tx is calling qdisc_reset without qdisc_lock
  qlge: fix a eeh handler to not add a pending timer
  qlge: Replacing add_timer() to mod_timer()
  usbnet: Set parent device early for netdev_printk()
  net: Revert "rndis_host: Poll status channel before control channel"
  netfilter: ip6t_REJECT: fix a dst leak in ipv6 REJECT
  drivers: bluetooth: bluecard_cs.c: Fixed include error, changed to linux/io.h
  ...

14 years agoNET: SB1250: Initialize .owner
Ralf Baechle [Tue, 6 Jul 2010 05:18:11 +0000 (05:18 +0000)]
NET: SB1250: Initialize .owner

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 drivers/net/sb1250-mac.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agovxge: show startup message with KERN_INFO
Wu Fengguang [Tue, 6 Jul 2010 03:02:03 +0000 (03:02 +0000)]
vxge: show startup message with KERN_INFO

The original KERN_CRIT will mess up terminals.

CC: Sreenivasa Honnur <Sreenivasa.Honnur@neterion.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoll_temac: Fix missing iounmaps
Denis Kirjanov [Mon, 5 Jul 2010 21:44:20 +0000 (21:44 +0000)]
ll_temac: Fix missing iounmaps

Fix missing iounmaps.

Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agobridge: Clear IPCB before possible entry into IP stack
Herbert Xu [Mon, 5 Jul 2010 21:29:28 +0000 (21:29 +0000)]
bridge: Clear IPCB before possible entry into IP stack

The bridge protocol lives dangerously by having incestuous relations
with the IP stack.  In this instance an abomination has been created
where a bogus IPCB area from a bridged packet leads to a crash in
the IP stack because it's interpreted as IP options.

This patch papers over the problem by clearing the IPCB area in that
particular spot.  To fix this properly we'd also need to parse any
IP options if present but I'm way too lazy for that.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cheers,
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Wed, 7 Jul 2010 18:43:28 +0000 (11:43 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm: correctly update connector DPMS status in drm_fb_helper
  drm/radeon/kms: fix shared ddc handling
  drm/ttm: Allocate the page pool manager in the heap.

14 years agodrm: correctly update connector DPMS status in drm_fb_helper
Jesse Barnes [Fri, 2 Jul 2010 17:48:08 +0000 (10:48 -0700)]
drm: correctly update connector DPMS status in drm_fb_helper

We don't currently update the DPMS status of the connector (both in the
connector itself and the connector's DPMS property) in the fb helper
code.  This means that if the kernel FB core has blanked the screen,
sysfs will still show a DPMS status of "on".  It also means that when X
starts, it will try to light up the connectors, but the drm_crtc_helper
code will ignore the DPMS change since according to the connector, the
DPMS status is already on.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=28436 (the annoying
"my screen was blanked when I started X and now it won't light up" bug).

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix shared ddc handling
Alex Deucher [Thu, 1 Jul 2010 14:34:56 +0000 (10:34 -0400)]
drm/radeon/kms: fix shared ddc handling

Connectors with a shared ddc line can be connected to different
encoders.

Reported by Pasi Kärkkäinen <pasik@iki.fi> on dri-devel

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/ttm: Allocate the page pool manager in the heap.
Francisco Jerez [Sun, 4 Jul 2010 02:03:07 +0000 (04:03 +0200)]
drm/ttm: Allocate the page pool manager in the heap.

Repeated ttm_page_alloc_init/fini fails noisily because the pool
manager kobj isn't zeroed out between uses (we could do just that but
statically allocated kobjects are generally considered a bad thing).
Move it to kzalloc'ed memory.

Note that this patch drops the refcounting behavior of the pool
allocator init/fini functions: it would have led to a race condition
in its current form, and anyway it was never exploited.

This fixes a regression with reloading kms modules at runtime, since
page allocator was introduced.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoVFS: introduce s_dirty accessors
Artem Bityutskiy [Thu, 10 Jun 2010 10:56:33 +0000 (13:56 +0300)]
VFS: introduce s_dirty accessors

This patch introduces 3 VFS accessors: 'sb_mark_dirty()',
'sb_mark_clean()', and 'sb_is_dirty()'. They simply
set 'sb->s_dirt' or test 'sb->s_dirt'. The plan is to make
every FS use these accessors later instead of manipulating
the 'sb->s_dirt' flag directly.

Ultimately, this change is a preparation for the periodic
superblock synchronization optimization which is about
preventing the "sync_supers" kernel thread from waking up
even if there is nothing to synchronize.

This patch does not do any functional change, just adds
accessor functions.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 7 Jul 2010 00:16:09 +0000 (17:16 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rbtree: Undo augmented trees performance damage and regression
  x86, Calgary: Limit the max PHB number to 256

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Wed, 7 Jul 2010 00:15:15 +0000 (17:15 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: fix crush device 'out' threshold to 1.0, not 0.1
  ceph: fix caps usage accounting for import (non-reserved) case
  ceph: only release clean, unused caps with mds requests
  ceph: fix crush CHOOSE_LEAF when type is already a leaf
  ceph: fix crush recursion
  ceph: fix caps debugfs entry
  ceph: delay umount until all mds requests drop inode+dentry refs
  ceph: handle splice_dentry/d_materialize_unique error in readdir_prepopulate
  ceph: fix crush map update decoding
  ceph: fix message memory leak, uninitialized variable
  ceph: fix map handler error path
  ceph: some endianity fixes

14 years agoMerge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
Linus Torvalds [Wed, 7 Jul 2010 00:14:53 +0000 (17:14 -0700)]
Merge branch 'urgent' of git://git./linux/kernel/git/brodo/pcmcia-2.6

* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
  pcmcia: do not initialize the present flag too late.

14 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Wed, 7 Jul 2010 00:14:33 +0000 (17:14 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (22 commits)
  MIPS: Return after handling coprocessor 2 exception
  MIPS: BCM47xx: Add NVRAM support devices
  MIPS: Loongson: Define rtc device on MC146818-equipped systems
  MIPS: MT: Fix FPU affinity.
  MIPS: Oprofile: Fixup of loongson2_exit()
  MIPS: Alchemy: sleepcode without compile-time cputype dependencies
  MIPS: Tracing: Cleanup of address space checking
  MIPS: Tracing: Cleanup of function graph tracer
  MIPS: Tracing: Reduce the overhead of dynamic Function Tracer
  MIPS: Tracing: Cleanup of instructions used
  MIPS: Tracing: Fix 32-bit support with -mmcount-ra-address
  MIPS: Tracing: Fix argument passing of the 32bit support with gcc 4.5
  MIPS: Tracing: Cleanup comments
  MIPS: Tracing: Cleanup the arguments passing of prepare_ftrace_return
  MIPS: Tracing: Merge adjacent #ifdefs with same condition.
  MIPS: AR7, BCM63xx: fix gpio_to_irq() return value
  MIPS: Restore signalling NaN behaviour for abs.[sd]
  MIPS: Loongson: CS5536: Fix ISA support
  MIPS: Loongson: Add a missing break statement in CS5536 IDE code
  MIPS: Loongson: CS5536: Add missing RDMSRs for IDE and USB
  ...

14 years agokbuild: Fix path to scripts/setlocalversion
Michal Marek [Mon, 5 Jul 2010 21:43:04 +0000 (23:43 +0200)]
kbuild: Fix path to scripts/setlocalversion

Commit 0a564b2 broke LOCALVERSION for O=... builds. Ouch.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-and-tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Peter Anvin <hpa@zytor.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoIPoIB: Fix world-writable child interface control sysfs attributes
Or Gerlitz [Sun, 6 Jun 2010 04:59:16 +0000 (04:59 +0000)]
IPoIB: Fix world-writable child interface control sysfs attributes

Sumeet Lahorani <sumeet.lahorani@oracle.com> reported that the IPoIB
child entries are world-writable; however we don't want ordinary users
to be able to create and destroy child interfaces, so fix them to be
writable only by root.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Cc: <stable@kernel.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Clean up properly if qib_init() fails
Ralph Campbell [Thu, 1 Jul 2010 20:25:45 +0000 (20:25 +0000)]
IB/qib: Clean up properly if qib_init() fails

If qib_init() fails, the driver fails to free memory, unregister
device files, and unregister with the PCIe framework. The driver will
unload without error but a subsequent driver load will cause the
system to panic.  This was found by changing the 7220 code to load the
serdes microcode separately and not installing the microcode file.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Completion queue callback needs to be single threaded
Ralph Campbell [Thu, 17 Jun 2010 23:14:15 +0000 (23:14 +0000)]
IB/qib: Completion queue callback needs to be single threaded

Workqueues aren't exactly equivalent to tasklets since the callback
function may be called from multiple CPUs before the callback returns.
This causes completion notification callbacks to have MT bugs since
they weren't expecting this behavior. The fix is to use a single
threaded work queue.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Update 7322 serdes tables
Ralph Campbell [Thu, 17 Jun 2010 23:14:09 +0000 (23:14 +0000)]
IB/qib: Update 7322 serdes tables

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Clear 6120 hardware error register
Ralph Campbell [Thu, 17 Jun 2010 23:14:04 +0000 (23:14 +0000)]
IB/qib: Clear 6120 hardware error register

The hardware error register needs to be cleared or another interrupt
will be generated, thus causing an infinite loop.  This is a
regression introduced when removing debug output.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Clear eager buffer memory for each new process
Ralph Campbell [Thu, 17 Jun 2010 23:13:59 +0000 (23:13 +0000)]
IB/qib: Clear eager buffer memory for each new process

The eager buffers are not being cleared before being mmapped into a
new user address space.  This is a potential security risk and should
be fixed.  Note that the eager header queue is already being cleared.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Mask hardware error during link reset
Ralph Campbell [Thu, 17 Jun 2010 23:13:54 +0000 (23:13 +0000)]
IB/qib: Mask hardware error during link reset

The HCA checks for certain hardware errors which can be falsely
triggered when the IB link is reset. The fix is to mask them rather
than report them.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoIB/qib: Don't mark VL15 bufs as WC to avoid a rare 7322 chip problem
Dave Olson [Thu, 17 Jun 2010 23:13:44 +0000 (23:13 +0000)]
IB/qib: Don't mark VL15 bufs as WC to avoid a rare 7322 chip problem

Don't set write combining via PAT on the VL15 buffers to avoid a rare
problem with unaligned writes from interrupt-flushed store buffers.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Derive smac_idx from port viid
Steve Wise [Wed, 23 Jun 2010 15:46:44 +0000 (15:46 +0000)]
RDMA/cxgb4: Derive smac_idx from port viid

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Avoid false GTS CIDX_INC overflows
Steve Wise [Thu, 10 Jun 2010 19:03:06 +0000 (19:03 +0000)]
RDMA/cxgb4: Avoid false GTS CIDX_INC overflows

The T4 IQ hw design assumes CIDX_INC credits will be returned on a
regular basis and always before the CIDX counter crosses over the PIDX
counter.  For RDMA CQs, however, returning CIDX_INC credits is only
needed and desired when and if the CQ is armed for notification.  This
can lead to a GTS write returning credits that causes the HW to reject
the credit update because it causes CIDX to pass PIDX.  Once this
happens, the CIDX/PIDX counters get out of whack and an application
can miss a notification and get stuck blocked awaiting a notification.

To avoid this, we allocate the HW IQ 2x times the requested size.
This seems to avoid the false overflow failures.  If we see more
issues with this, then we'll have to add code in the poll path to
return credits periodically like when the amount reaches 1/2 the queue
depth).  I would like to avoid this as it adds a PCI write transaction
for applications that never arm the CQ (like most MPIs).

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Don't call abort_connection() for active connect failures
Steve Wise [Thu, 10 Jun 2010 19:02:55 +0000 (19:02 +0000)]
RDMA/cxgb4: Don't call abort_connection() for active connect failures

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agoRDMA/cxgb4: Use the DMA state API instead of the pci equivalents
FUJITA Tomonori [Thu, 3 Jun 2010 05:37:50 +0000 (05:37 +0000)]
RDMA/cxgb4: Use the DMA state API instead of the pci equivalents

This replace the PCI DMA state API (include/linux/pci-dma.h) with the
DMA equivalents since the PCI DMA state API will be obsolete.

No functional change.

For further information about the background:

http://marc.info/?l=linux-netdev&m=127037540020276&w=2

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
14 years agowriteback: simplify the write back thread queue
Christoph Hellwig [Tue, 6 Jul 2010 06:59:53 +0000 (08:59 +0200)]
writeback: simplify the write back thread queue

First remove items from work_list as soon as we start working on them.  This
means we don't have to track any pending or visited state and can get
rid of all the RCU magic freeing the work items - we can simply free
them once the operation has finished.  Second use a real completion for
tracking synchronous requests - if the caller sets the completion pointer
we complete it, otherwise use it as a boolean indicator that we can free
the work item directly.  Third unify struct wb_writeback_args and struct
bdi_work into a single data structure, wb_writeback_work.  Previous we
set all parameters into a struct wb_writeback_args, copied it into
struct bdi_work, copied it again on the stack to use it there.  Instead
of just allocate one structure dynamically or on the stack and use it
all the way through the stack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
14 years agowriteback: split writeback_inodes_wb
Christoph Hellwig [Thu, 10 Jun 2010 10:07:54 +0000 (12:07 +0200)]
writeback: split writeback_inodes_wb

The case where we have a superblock doesn't require a loop here as we scan
over all inodes in writeback_sb_inodes. Split it out into a separate helper
to make the code simpler.  This also allows to get rid of the sb member in
struct writeback_control, which was rather out of place there.

Also update the comments in writeback_sb_inodes that explain the handling
of inodes from wrong superblocks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>