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It is unlikely but in case if it hits then it would cause panic
due to null cmd ptr, so far only one instance seen recently with
ESX though this was introduced long ago with this commit:-
commit c1ecb90a66c5afc7cc5c9349f9c3714eef4a5cfb
Author: Chris Leech <christopher.leech@intel.com>
Date: Thu Dec 10 09:59:26 2009 -0800
[SCSI] libfc: reduce hold time on SCSI host lock
Currently fsp->cmd is set to NULL w/o scsi_queue_lock before
dequeuing from scsi_pkt_queue and that could cause NULL
fsp->cmd in fc_fcp_cleanup_each_cmd for cmd completing
with fsp->cmd = NULL after fc_fcp_cleanup_each_cmd taken
reference. No need to set fsp->cmd to NULL as this is also
protected by fc_fcp_lock_pkt(), for above race the
fc_fcp_lock_pkt() in fc_fcp_cleanup_each_cmd() will fail
as that cmd is already done.
Mike mentioned same issue at
http://www.open-fcoe.org/pipermail/devel/2010-September/010533.html
Similarly moved sc_cmd->SCp.ptr = NULL under scsi_queue_lock so
that scsi abort error handler won't abort on completed cmds.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Since sometimes current FIP_MODE_AUTO mode falls back to non-FIP
mode while DCB link still getting ready in fabric mode with
its peer switch, it falls back after few libfc flogi retries
and that is not we want while working with FIP enabled
switches in FABRIC mode, therefore sets default as FIP_MODE_FABRIC
as discussed and agreed before in this mail thread
http://www.open-fcoe.org/pipermail/devel/2010-August/010511.html
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Sometimes switch in NPV mode rejects flogi request with DID
zero and in that case flogi is not tried again and port
remains offline, so this patch validates DID for non zero
along with only ACC response to allow flogi retry
for RJT with DID=0 also succeed FLOGI in next try.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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This is per Mile Christie feedback since in this case IO
could get retried for tape devices and therefore DID_REQUEUE
cannot be used, more details in this thread.
http://marc.info/?l=linux-scsi&m=127970522630136&w=2
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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There does not seem to be a reason why libfc adds a 5
second delay to the user requested value for the dev loss
tmo. There also does not seem to be a reason to allow
setting it to 0 (or really close).
This patch removes the extra 5 sec delay, and for 0 it
sets it to 1 like other fc drivers. We should actually
be able to set it to 0 since the queue_delayed_work API
will just call queue_work, but other drivers set it to 1 in
that case.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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gdth_ioctl_alloc() takes the size variable as an int.
copy_from_user() takes the size variable as an unsigned long.
gen.data_len and gen.sense_len are unsigned longs.
On x86_64 longs are 64 bit and ints are 32 bit.
We could pass in a very large number and the allocation would truncate
the size to 32 bits and allocate a small buffer. Then when we do the
copy_from_user(), it would result in a memory corruption.
CC: stable@kernel.org
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Removing SCSI devices through
echo 1 > /sys/bus/scsi/devices/ ... /delete
while the FC transport class removes the SCSI target can lead to an
oops:
Unable to handle kernel pointer dereference at virtual kernel address 00000000b6815000
Oops: 0011 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in: sunrpc qeth_l3 binfmt_misc dm_multipath scsi_dh dm_mod ipv6 qeth ccwgroup [last unloaded: scsi_wait_scan]
CPU: 1 Not tainted 2.6.35.5-45.x.20100924-s390xdefault #1
Process fc_wq_0 (pid: 861, task: 00000000b7331240, ksp: 00000000b735bac0)
Krnl PSW : 0704200180000000 00000000003ff6e4 (__scsi_remove_device+0x24/0xd0)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3
Krnl GPRS: 0000000000000001 0000000000000000 00000000b6815000 00000000bc24a8c0
00000000003ff7c8 000000000056dbb8 0000000000000002 0000000000835d80
ffffffff00000000 0000000000001000 00000000b6815000 00000000bc24a7f0
00000000b68151a0 00000000b6815000 00000000b735bc20 00000000b735bbf8
Krnl Code: 00000000003ff6d6: a7840001 brc 8,3ff6d8
00000000003ff6da: a7fbffd8 aghi %r15,-40
00000000003ff6de: e3e0f0980024 stg %r14,152(%r15)
>00000000003ff6e4: e31021200004 lg %r1,288(%r2)
00000000003ff6ea: a71f0000 cghi %r1,0
00000000003ff6ee: a7a40011 brc 10,3ff710
00000000003ff6f2: a7390003 lghi %r3,3
00000000003ff6f6: c0e5ffffc8b1 brasl %r14,3f8858
Call Trace:
([<0000000000001000>] 0x1000)
[<00000000003ff7d2>] scsi_remove_device+0x42/0x54
[<00000000003ff8ba>] __scsi_remove_target+0xca/0xfc
[<00000000003ff99a>] __remove_child+0x3a/0x48
[<00000000003e3246>] device_for_each_child+0x72/0xbc
[<00000000003ff93a>] scsi_remove_target+0x4e/0x74
[<0000000000406586>] fc_rport_final_delete+0xb2/0x23c
[<000000000015d080>] worker_thread+0x200/0x344
[<000000000016330c>] kthread+0xa0/0xa8
[<0000000000106c1a>] kernel_thread_starter+0x6/0xc
[<0000000000106c14>] kernel_thread_starter+0x0/0xc
INFO: lockdep is turned off.
Last Breaking-Event-Address:
[<00000000003ff7cc>] scsi_remove_device+0x3c/0x54
The function __scsi_remove_target iterates through the SCSI devices on
the host, but it drops the host_lock before calling
scsi_remove_device. When the SCSI device is deleted from another
thread, the pointer to the SCSI device in scsi_remove_device can
become invalid. Fix this by getting a reference to the SCSI device
before dropping the host_lock to keep the SCSI device alive for the
call to scsi_remove_device.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Create a sysfs entry that reports the negotiated DIX/DIF protection mode
for a SCSI disk. This depends on the protection type the disk is
formatted with as well as the protection capabilities advertised by the
controller.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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grab hardware_lock in eh_abort before accessing srb to avoid
race between command completion and get refcount on srb.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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* Cleanup qla4xxx_pci_mmio_enabled():
don't want to return PCI_ERS_NEED_RESET if firmware hung.
IDC will take care of it.
* Request irq after initialize_adapter() in qla82xx_error_recovery().
* Return all active commands from qla4xxx_pci_error_detected().
* Cleanup ql4_def.h
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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There is a possibility that the firmware dies while the rom
lock is held. The only way to recover from this condition is
to forcefully unlock.
Signed-off-by: Shyam Sundar <shyam.sundar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Switching from doorbell mechanism to CRB register based
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Shyam Sundar <shyam.sundar@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Signed-off-by: Karen Higgins <karen.higgins@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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AEN 8130 Corresponds to an event representing the insertion (detection)
of a transceiver. It also reports the type of the SFP+.
AEN 8131 corresponds to the removal of a transceiver.
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Shyam Sundar <shyam.sundar@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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The seconds_since_last_heartbeat should be checked for consecutive
heartbeat checks. Currently it could happen that it gets set to
max (2 seconds) for non-consecutive heartbeat checks.
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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complete
Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Since interrupts are registered in start_firmware(load_risc) for 82xx,
free them if init_firmware fails.
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Karen Higgins <karen.higgins@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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change data type of sense_len from uint8_t to uint16_t
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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remove "ha->retry_reset_ha_cnt" from wait_for_hba_online as its
initialize to zero at driver init time so it could always return
QLA_ERROR from wait_for_hba_online() without waiting for hba to
come online.
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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* cleanup function qla4xxx_recovery_timeout
- No need to wakeup dpc thread from function
qla4xxx_recovery_timeout() as we are not doing anything
in do_dpc() thread when wakeup from
qla4xxx_recovery_timeout()
* cleanup function qla4xxx_wait_for_hba_online
- Remove hard coded value from qla4xxx_wait_for_hba_online().
* cleanup function qla4xxx_start_firmware_from_flash
- display seconds
* cleanup function qla4_8xxx_load_risc
- Remove redundant code.
* cleanup function qla4xxx_get_firmware_status
- update debug statement
* cleanup function qla4_8xxx_try_start_fw
- update return status
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Deleting a SCSI device on a blocked fc_remote_port (before
fast_io_fail_tmo fires) results in a hanging thread:
STACK:
0 schedule+1108 [0x5cac48]
1 schedule_timeout+528 [0x5cb7fc]
2 wait_for_common+266 [0x5ca6be]
3 blk_execute_rq+160 [0x354054]
4 scsi_execute+324 [0x3b7ef4]
5 scsi_execute_req+162 [0x3b80ca]
6 sd_sync_cache+138 [0x3cf662]
7 sd_shutdown+138 [0x3cf91a]
8 sd_remove+112 [0x3cfe4c]
9 __device_release_driver+124 [0x3a08b8]
10 device_release_driver+60 [0x3a0a5c]
11 bus_remove_device+266 [0x39fa76]
12 device_del+340 [0x39d818]
13 __scsi_remove_device+204 [0x3bcc48]
14 scsi_remove_device+66 [0x3bcc8e]
15 sysfs_schedule_callback_work+50 [0x260d66]
16 worker_thread+622 [0x162326]
17 kthread+160 [0x1680b0]
18 kernel_thread_starter+6 [0x10aaea]
During the delete, the SCSI device is in moved to SDEV_CANCEL. When
the FC transport class later calls scsi_target_unblock, this has no
effect, since scsi_internal_device_unblock ignores SCSI devics in this
state.
It looks like all these are regressions caused by:
5c10e63c943b4c67561ddc6bf61e01d4141f881f
[SCSI] limit state transitions in scsi_internal_device_unblock
Fix by rejecting offline and cancel in the state transition.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
[jejb: Original patch by Christof Schmitt, modified by Mike Christie]
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Use the FCP_RSP_INFO length to correctly skip the FCP_RSP_INFO field.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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zfcp_unit_release calls put_device on the port. Ensure that get_device
has been called before possibly triggering the release function
through put_device or device_unregister.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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If an exchange config is executed while the local link is down, the
request succeeds but the returned data is incomplete. Proceeding with
the adapter activation is leading to an unpredictable behaviour (e.g.
kernel panic) caused by invalid values. In such a scenario the
recommended ERP is to retry the action and wait for a link up event.
If the issue persists the activation has to fail.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Sigend-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
Update broken web addresses in arch directory.
Update broken web addresses in the kernel.
Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget
Revert "Fix typo: configuation => configuration" partially
ida: document IDA_BITMAP_LONGS calculation
ext2: fix a typo on comment in ext2/inode.c
drivers/scsi: Remove unnecessary casts of private_data
drivers/s390: Remove unnecessary casts of private_data
net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data
drivers/infiniband: Remove unnecessary casts of private_data
drivers/gpu/drm: Remove unnecessary casts of private_data
kernel/pm_qos_params.c: Remove unnecessary casts of private_data
fs/ecryptfs: Remove unnecessary casts of private_data
fs/seq_file.c: Remove unnecessary casts of private_data
arm: uengine.c: remove C99 comments
arm: scoop.c: remove C99 comments
Fix typo configue => configure in comments
Fix typo: configuation => configuration
Fix typo interrest[ing|ed] => interest[ing|ed]
Fix various typos of valid in comments
...
Fix up trivial conflicts in:
drivers/char/ipmi/ipmi_si_intf.c
drivers/usb/gadget/rndis.c
net/irda/irnet/irnet_ppp.c
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/edac
* 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/edac: (25 commits)
i7300_edac: Properly initialize per-csrow memory size
V4L/DVB: i7300_edac: better initialize page counts
MAINTAINERS: Add maintainer for i7300-edac driver
i7300-edac: CodingStyle cleanup
i7300_edac: Improve comments
i7300_edac: Cleanup: reorganize the file contents
i7300_edac: Properly detect channel on CE errors
i7300_edac: enrich FBD error info for corrected errors
i7300_edac: enrich FBD error info for fatal errors
i7300_edac: pre-allocate a buffer used to prepare err messages
i7300_edac: Fix MTR x4/x8 detection logic
i7300_edac: Make the debug messages coherent with the others
i7300_edac: Cleanup: remove get_error_info logic
i7300_edac: Add a code to cleanup error registers
i7300_edac: Add support for reporting FBD errors
i7300_edac: Properly detect the type of error correction
i7300_edac: Detect if the device is on single mode
i7300_edac: Adds detection for enhanced scrub mode on x8
i7300_edac: Clear the error bit after reading
i7300_edac: Add error detection code for global errors
...
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* 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (321 commits)
KVM: Drop CONFIG_DMAR dependency around kvm_iommu_map_pages
KVM: Fix signature of kvm_iommu_map_pages stub
KVM: MCE: Send SRAR SIGBUS directly
KVM: MCE: Add MCG_SER_P into KVM_MCE_CAP_SUPPORTED
KVM: fix typo in copyright notice
KVM: Disable interrupts around get_kernel_ns()
KVM: MMU: Avoid sign extension in mmu_alloc_direct_roots() pae root address
KVM: MMU: move access code parsing to FNAME(walk_addr) function
KVM: MMU: audit: check whether have unsync sps after root sync
KVM: MMU: audit: introduce audit_printk to cleanup audit code
KVM: MMU: audit: unregister audit tracepoints before module unloaded
KVM: MMU: audit: fix vcpu's spte walking
KVM: MMU: set access bit for direct mapping
KVM: MMU: cleanup for error mask set while walk guest page table
KVM: MMU: update 'root_hpa' out of loop in PAE shadow path
KVM: x86 emulator: Eliminate compilation warning in x86_decode_insn()
KVM: x86: Fix constant type in kvm_get_time_scale
KVM: VMX: Add AX to list of registers clobbered by guest switch
KVM guest: Move a printk that's using the clock before it's ready
KVM: x86: TSC catchup mode
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c-viapro: Don't log nacks
i2c/pca954x: Remove __devinit and __devexit from probe and remove functions
MAINTAINERS: Add maintainer for PCA9541 I2C bus master selector driver
i2c/mux: Driver for PCA9541 I2C Master Selector
i2c: Optimize function i2c_detect()
i2c: Discard warning message on device instantiation from user-space
i2c-amd8111: Add proper error handling
i2c: Change to new flag variable
i2c: Remove unneeded inclusions of <linux/i2c-id.h>
i2c: Let i2c_parent_is_i2c_adapter return the parent adapter
i2c: Simplify i2c_parent_is_i2c_adapter
i2c-pca-platform: Change device name of request_irq
i2c: Fix Kconfig dependencies
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (47 commits)
HID: fix mismerge in hid-lg
HID: hidraw: fix window in hidraw_release
HID: hid-sony: override usbhid_output_raw_report for Sixaxis
HID: add absolute axis resolution calculation
HID: force feedback support for Logitech RumblePad gamepad
HID: support STmicroelectronics and Sitronix with hid-stantuml driver
HID: magicmouse: Adjust major / minor axes to scale
HID: Fix for problems with eGalax/DWAV multi-touch-screen
HID: waltop: add support for Waltop Slim Tablet 12.1 inch
HID: add NOGET quirk for AXIS 295 Video Surveillance Joystick
HID: usbhid: remove unused hiddev_driver
HID: magicmouse: Use hid-input parsing rather than bypassing it
HID: trivial formatting fix
HID: Add support for Logitech Speed Force Wireless gaming wheel
HID: don't Send Feature Reports on Interrupt Endpoint
HID: 3m: Adjust major / minor axes to scale
HID: 3m: Correct touchscreen emulation
HID: 3m: Convert to MT slots
HID: 3m: Output proper orientation range
HID: 3m: Adjust to sequential MT HID protocol
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: Makefile - replace the use of <module>-objs with <module>-y
crypto: hifn_795x - use cancel_delayed_work_sync()
crypto: talitos - sparse check endian fixes
crypto: talitos - fix checkpatch warning
crypto: talitos - fix warning: 'alg' may be used uninitialized in this function
crypto: cryptd - Adding the AEAD interface type support to cryptd
crypto: n2_crypto - Niagara2 driver needs to depend upon CRYPTO_DES
crypto: Kconfig - update broken web addresses
crypto: omap-sham - Adjust DMA parameters
crypto: fips - FIPS requires algorithm self-tests
crypto: omap-aes - OMAP2/3 AES hw accelerator driver
crypto: updates to enable omap aes
padata: add missing __percpu markup in include/linux/padata.h
MAINTAINERS: Add maintainer entries for padata/pcrypt
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Transactions not acked can happen every now and then, in particular
during device detection, and various transaction types can be used for
this purpose. So stop logging this event, except when debugging is
enabled. This is what other similar drivers (e.g. i2c-i801 or
i2c-piix4) do.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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The underlying I2C adapter may or may not be present when this driver
gets initialized, and may disappear later, so there is no safe time at
which the probe and remove functions can be discarded.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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This patch adds support for PCA9541, an I2C Bus Master Selector.
The driver is modeled as single channel I2C Multiplexer to be able to utilize
the I2C multiplexer framework.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
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Check the class flags before allocating the temporary i2c_client
structure, to avoid allocating it when we don't need it.
Also optimize the inner loop a bit.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
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The "new_device" sysfs interface has been there for quite some time
now, nobody complained about it so it must be good enough. Time to
remove the warning and call it stable.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michael Lawnick <ml.lawnick@gmx.de>
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The functions the functions amd_ec_wait_write and amd_ec_wait_read have an
unsigned return type, but return a negative constant to indicate an error
condition.
A sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@exists@
identifier f;
constant C;
@@
unsigned f(...)
{ <+...
* return -C;
...+> }
// </smpl>
Fixing amd_ec_wait_write and amd_ec_wait_read leads to the need to adjust
the return type of the functions amd_ec_write and amd_ec_read, which are
the only functions that call amd_ec_wait_write and amd_ec_wait_read.
amd_ec_write and amd_ec_read, in turn, are only called from within the
function amd8111_access, which already returns a signed typed value. Each
of the calls to amd_ec_write and amd_ec_read are updated using the
following semantic patch:
// <smpl>
@@
@@
+ status = amd_ec_write
- amd_ec_write
(...);
+ if (status) return status;
@@
@@
+ status = amd_ec_read
- amd_ec_read
(...);
+ if (status) return status;
// </smpl>
The patch also adds the declaration of the status variable.
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Replace EXTRA_CFLAGS with ccflags-y.
Signed-off-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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These drivers don't use anything which is defined in <linux/i2c-id.h>.
This header file was never meant to be included directly anyway, and
will be deleted soon.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: Dave Airlie <airlied@linux.ie>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
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This makes the calling site's code clearer IMHO.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michael Lawnick <ml.lawnick@gmx.de>
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i2c->adap.name shouldn't be used in request_irq.
Instead the driver name "i2c-pca-platform" should be used.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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drivers/i2c/algos/Kconfig makes all the algorithms dependent on
!I2C_HELPER_AUTO, which triggers a Kconfig warning about broken
dependencies when some driver selects one of the algorithms. Ideally
we would make only the prompts dependent on !I2C_HELPER_AUTO, however
Kconfig doesn't currently support that. So we have to redefine the
symbols separately for the I2C_HELPER_AUTO=y case.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michal Marek <mmarek@suse.cz>
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|
The one big missing feature in s390-virtio was hotplugging. This is no more.
This patch implements hotplug add support, so you can on the fly add new devices
in the guest.
Keep in mind that this needs a patch for qemu to actually leverage the
functionality.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Currenty the ext_param field only distinguishes between "config change" and
"vring interrupt". We can do a lot more with it though, so let's enable a
full byte of possible values and constants to #defines while at it.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
|
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Fix wrong merge in hid-lg -- report fixup functions now get
pointer to rdesc.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
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|
Conflicts:
drivers/hid/hid-ids.h
drivers/hid/hid-lg.c
drivers/hid/usbhid/hid-quirks.c
|
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'roccat' into for-linus
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