Remove 2 redundant extern inline functions: qla8044_set_qsnt_ready() and
qla8044_need_reset_handler(). At present, within upstream next kernel
source code, they are only used within "drivers/scsi/qla2xxx/qla_nx2.c".
The related error and warnings (with allmodconfig under tile):
CC [M] drivers/scsi/qla2xxx/qla_nx2.o
drivers/scsi/qla2xxx/qla_nx2.c:1633:1: error: static declaration of 'qla8044_need_reset_handler' follows non-static declaration
qla8044_need_reset_handler(struct scsi_qla_host *vha)
^
In file included from drivers/scsi/qla2xxx/qla_def.h:3706:0,
from drivers/scsi/qla2xxx/qla_nx2.c:11:
drivers/scsi/qla2xxx/qla_gbl.h:756:20: note: previous declaration of 'qla8044_need_reset_handler' was here
extern inline void qla8044_need_reset_handler(struct scsi_qla_host *vha);
^
drivers/scsi/qla2xxx/qla_gbl.h:756:20: warning: inline function 'qla8044_need_reset_handler' declared but never defined
make[3]: *** [drivers/scsi/qla2xxx/qla_nx2.o] Error 1
make[2]: *** [drivers/scsi/qla2xxx] Error 2
make[1]: *** [drivers/scsi] Error 2
make: *** [drivers] Error 2
CC [M] drivers/scsi/qla2xxx/qla_tmpl.o
In file included from drivers/scsi/qla2xxx/qla_def.h:3706:0,
from drivers/scsi/qla2xxx/qla_tmpl.c:7:
drivers/scsi/qla2xxx/qla_gbl.h:755:20: warning: inline function 'qla8044_set_qsnt_ready' declared but never defined
extern inline void qla8044_set_qsnt_ready(struct scsi_qla_host *vha);
^
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Use dma_set_mask_and_coherent() to set both the DMA and coherent
DMA mask.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Even though the ipr driver is only used on PCI, convert it
to use the generic DMA API.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The request (and SCSI command) tag is the tag number assigned
by the generic block-tagging code, not the SCSI-II tag messages.
Those are represented by the device flags 'tagged_supported',
'simple_tags', and 'ordered_tags'.
(The SCSI midlayer doesn't use HEAD_OF_QUEUE tags).
So fixup vmw_pvscsi to assign the correct tag type.
[hch: fixed up to never set MSG_ORDERED_TAG]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Arvind Kumar <arvindkumar@vmware.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This macro is only used in the NCR5380 drivers and they don't include
this header.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
ufs never looks at the tag type, so there is no need to set it either.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Now that we also get proper values in cmd->request->tag for untagged
commands, there is no need to force tagged_supported to on in drivers
that need host-wide tags.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Remove the tagged argument from scsi_adjust_queue_depth, and just let it
handle the queue depth. For most drivers those two are fairly separate,
given that most modern drivers don't care about the SCSI "tagged" status
of a command at all, and many old drivers allow queuing of multiple
untagged commands in the driver.
Instead we start out with the ->simple_tags flag set before calling
->slave_configure, which is how all drivers actually looking at
->simple_tags except for one worke anyway. The one other case looks
broken, but I've kept the behavior as-is for now.
Except for that we only change ->simple_tags from the ->change_queue_type,
and when rejecting a tag message in a single driver, so keeping this
churn out of scsi_adjust_queue_depth is a clear win.
Now that the usage of scsi_adjust_queue_depth is more obvious we can
also remove all the trivial instances in ->slave_alloc or ->slave_configure
that just set it to the cmd_per_lun default.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Allow a driver to ask for block layer tags by setting .use_blk_tags in the
host template, in which case it will always see a valid value in
request->tag, similar to the behavior when using blk-mq. This means even
SCSI "untagged" commands will now have a tag, which is especially useful
when using a host-wide tag map.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
This function shouldn't change the queue type, just the depth.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Unless we want to build a SPI tag message we should just check SCMD_TAGGED
instead of reverse engineering a tag type through the use of
scsi_populate_tag_msg.
Also rename the function to spi_populate_tag_msg, make it behave like the
other spi message helpers, and move it to the spi transport class.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Remove the ordered_tags field, we haven't been issuing ordered tags based
on it since the big barrier rework in 2010.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently scsi piggy backs on the block layer to define the concept
of a tagged command. But we want to be able to have block-level host-wide
tags assigned even for untagged commands like the initial INQUIRY, so add
a new SCSI-level flag for commands that are tagged at the scsi level, so
that even commands without that set can have tags assigned to them. Note
that this alredy is the case for the blk-mq code path, and this just lets
the old path catch up with it.
We also set this flag based upon sdev->simple_tags instead of the block
queue flag, so that it is entirely independent of the block layer tagging,
and thus always correct even if a driver doesn't use block level tagging
yet.
Also remove the old blk_rq_tagged; it was only used by SCSI drivers, and
removing it forces them to look for the proper replacement.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Most drivers use exactly the same implementation, so provide it as a
library function.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Move all code to set up and tear down sdev->scsi_dh_data to common code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
All drivers now do their own matching, so there is no more need to expose
a device list as part of the interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
We need to grab a reference to the module before calling the attach
routines to avoid a small race vs module removal. It also cleans up
the code significantly as a side effect.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
The T10 SBC UNMAP command does not provide any hard guarantees that
blocks will return zeroes on a subsequent READ. This is due to the fact
that the device server is free to silently ignore all or parts of the
request.
The only way to ensure that a block consistently returns zeroes after
being unmapped is to use WRITE SAME with the UNMAP bit set. Should the
device be unable to unmap one or more blocks described by the command it
is required to manually write zeroes to them.
Until now we have preferred UNMAP over the WRITE SAME variants to
accommodate thinly provisioned devices that predated the final SBC-3
spec. This patch changes the heuristic so that we favor WRITE SAME(16)
or (10) over UNMAP if these commands are marked as supported in the
Logical Block Provisioning VPD page.
The patch also disables discard_zeroes_data for devices operating in
UNMAP mode.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
No need to verify the passthrough ioctls, the real handler will
take care of that. Also make sure not to block for resets on
O_NONBLOCK fds.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
The calling conventions for this function are bad as it could return
-ENODEV both for a device not currently online and a not recognized ioctl.
Add a new scsi_ioctl_block_when_processing_errors function that wraps
scsi_block_when_processing_errors with the a special case for the
SG_SCSI_RESET ioctl command, and handle the SG_SCSI_RESET case itself
in scsi_ioctl. All callers of scsi_ioctl now must call the above helper
to check for the EH state, so that the ioctl handler itself doesn't
have to.
Reported-by: Robert Elliott <Elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Pull the common code from the two callers into the function,
and rename it to scsi_ioctl_reset.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Allow a SCSI LLD to declare how many hardware queues it supports
by setting Scsi_Host.nr_hw_queues before calling scsi_add_host().
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
There can be quite a lot of I/O error messages, even on smaller
machines. So we need to ratelimit them to not overwhelm logging.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The .eh_abort_handler needs to return SUCCESS, FAILED, or
FAST_IO_FAIL. So fixup all callers to adhere to this requirement.
Reviewed-by: Robert Elliott <elliott@hp.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
scsi_try_to_abort_cmd() should only return SUCCESS, FAILED, or
FAST_IO_FAIL. So document that in the function description and simplify
the logging message.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The EH statistics are per host, so we should be using
shost_printk() here.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Suggested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Use the matching scope for logging messages to allow for
better command tracing.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Suggested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Simplify scsi_log_(send|completion) by externalizing
scsi_mlreturn_string() and always print the command address.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Open-code scsi_print_result in sd.c, and cleanup logging to
not print duplicate informations.
Also remove the call to scsi_show_result() in ufshcd.c
to be consistent with other callers of scsi_execute().
With that we can remove scsi_show_result in constants.c
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Export functions for later use.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Calling scsi_print_command should not be necessary during abort;
if the information is required one should enable scsi logging.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
print_opcode_name() was only ever called with a '0' argument
from LLDDs and ULDs which were _not_ supporting variable length
CDBs, so the 'if' clause was never triggered.
Instead we should be using the last argument to specify
the cdb length to avoid accidental overflow when reading
the cdb buffer.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Consolidate the CDB opcode lookup in scsi_opcode_sa_name(),
so that we don't have to call several functions to figure
out the CDB opcode string.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Instead of having two versions of print_opcode_name() we
should be consolidating them into one version.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Implement a lookup array for SERVICE ACTION commands instead
of hardcoding it in a large switch statement.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Last caller is gone, so we can remove it.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Convert scsi_normalize_sense() and friends to return 'bool'
instead of an integer.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Yoshihiro Yunomae <yoshihiro.yunomae.ez@hitachi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Currently we're only decoding sense extras for tape devices.
And even there only for fixed format sense formats.
As this is of rather limited use in the general case we should
be stop trying to decode sense extras; the tape driver does
its own decoding anyway.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
If scsi_normalize_sense() fails we couldn't decode the sense
buffer, and the scsi_sense_hdr fields are invalid.
For those cases we should rather dump the sense buffer
and not try to decode invalid fields.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The 53c700 driver would be using scsi_print_sense() in a debug
statement, which was never compiled in. Plus the same information
can get retrieved with logging. So remove it.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Update logging messages to use dev_printk() variants for correct
device annotations.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
fas216 returns DID_BAD_TARGET for an incomplete data
transfer. The midlayer uses DID_BAD_TARGET to signal
a non-existing or not reachable target. So we should
rather be using DID_ERROR here.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Update acornscsi to use scsi_print_command() instead of the
underscore version and use scmd_printk() in acornscsi_done().
This will add correct device annotations in the resulting message.
And we should be using set_host_byte() for setting the
final result.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
We should be using the standard dev_printk() variants for
sense code printing.
[hch: remove __scsi_print_sense call in xen-scsiback, Acked by Juergen]
[hch: folded bracing fix from Dan Carpenter]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Like scmd_printk(), but the device name is passed in as
a string. Can be used by eg ULDs which do not have access
to the scsi_cmnd structure.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Remove all uncommented debugging code and move all
printk() statements over to dev_printk().
And while we're at it we should be doing a whitespace
cleanup, too.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
sd_done() was calling scsi_print_sense() for a sense code
of 'NO_SENSE'.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Some SES devices give non-unique Element Descriptors as part of the
Element Descriptor diag page. Since we use these for creating sysfs
entries, they need to be unique. The specification doesn't require
these to be unique.
Eg:
$ sg_ses -p 7 /dev/sg0
FTS CORP TXS6_SAS20BPX12 0500
enclosure services device
Element descriptor In diagnostic page:
generation code: 0x0
element descriptor by type list
Element type: Array device, subenclosure id: 0
Overall descriptor: ArrayDevicesInSubEnclsr0
Element 1 descriptor: ArrayDevice00
Element 2 descriptor: ArrayDevice01
Element 3 descriptor: ArrayDevice02
Element 4 descriptor: ArrayDevice03
Element 5 descriptor: ArrayDevice03
Element 6 descriptor: ArrayDevice03
Element 7 descriptor: ArrayDevice03
Element 8 descriptor: ArrayDevice03
Element 9 descriptor: ArrayDevice03
Element 10 descriptor: ArrayDevice03
Element 11 descriptor: ArrayDevice03
Element 12 descriptor: ArrayDevice03
Based on http://thread.gmane.org/gmane.linux.scsi/69289. This
version implements James' ideas about the naming convention
Signed-off-by: Markus Stockhausen <stockhausen@collogia.de>
Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This patch adds a debug_flag parameter that can be set on module load, and allows the DEBUG facility without a module recompile.
Note that now DEBUG 1 is the default with this patch.
Usage: modprobe st debug_flag=1
Signed-off-by: Laurence Oberman <loberman@redhat.com>
Acked-by: Kai M??kisara <kai.makisara@kolumbus.fi>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Further to a January 2013 thread titled: "[PATCH] SG_SCSI_RESET ioctl
should only perform requested operation" by Jeremy Linton a patch (v3)
is presented that expands the existing ioctl to include "no_escalate"
versions to the existing resets. This requires no changes to SCSI low
level drivers (LLDs); it adds several more finely tuned reset options
to the user space. For example:
/* This call remains the same, with the same escalating semantics
* if the device (LU) reset fail. That is: on failure to try a
* target reset and if that fails, try a bus reset, and if that fails
* try a host (i.e. LLD) reset. */
val = SG_SCSI_RESET_DEVICE;
res = ioctl(<sg_or_block_fd>, SG_SCSI_RESET, &val);
/* What follows is a new option introduced by this patch series. Only
* a device reset is attempted. If that fails then an appropriate
* error code is provided. N.B. There is no reset escalation. */
val = SG_SCSI_RESET_DEVICE | SG_SCSI_RESET_NO_ESCALATE;
res = ioctl(<sg_or_block_fd>, SG_SCSI_RESET, &val);
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Jeremy Linton <jlinton@tributary.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
As sparse correctly pointed out, scsi_partsize should use get_unaligned_le32
to read PC partition tables from disk, as they are little endian.
The result of this bug is that we returned incorrect geometries on big
endian systems when using the scsicam variant. Which probably doesn't
matter as only old x86 systems every cared about the geometry.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Resolve some missing-field-initializers warnings by using
designated initialization.
[hch: W=2 with modern gcc warns about this. Pretty pointless to me, but
I'd prefer to keep us warning free]
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The Scsi_Host structure max_lun field is the maximum allowed LUN plus 1. So
a LUN value is invalid if >= max_lun.
Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Function pci_enable_msix_range() may return negative values for error
conditions. So it's a bug by checking (pci_enable_msix_range() != 0)
for success and causes failure to megaraid driver when MSI is disabled.
[ 16.487267] megaraid_sas 0000:02:00.0: Controller type: iMR
[ 16.487275] genirq: Flags mismatch irq 0. 00000000 (megasas) vs. 00015a00 (tii
mer)
[ 16.487347] megasas: Failed to register IRQ for vector 0.
Fixes: 8ae80ed173 "megaraid: Use pci_enable_msix_range() instead of pci_enable_msix()"
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org> # 3.17
Connection retries were not being cleaned up correctly if they failed as a
result of link down. Applies on top of drivers-for-3.18.
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This patch fixes an issue with multipath ipr SAS devices which require a
start unit command to be issued following an adapter reset. Without this
patch, paths get marked failed following an adapter reset and since the
error handler never gets invoked to issue the start unit, the paths are
never recovered. Returning FAILED for this case ensures the error
handler wakes up to issue the start unit.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Multipath devices using the TUR path checker need to see the sense
code for a failed TUR command in their device handler. Since commit
14216561e1 we always return success for mid
layer issued TUR commands before calling the device handler, which
stopped the TUR path checker from working.
Move the call to the device handler check sense method before the early
return for TUR commands to give the device handler a chance to intercept
them.
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Setups that use the blk-mq I/O path can lock up if a host with a single
device that has its door locked enters EH. Make sure to only send the
command to re-lock the door to devices that actually were reset and thus
might have lost their state. Otherwise the EH code might be get blocked
on blk_get_request as all requests for non-reset devices might be in use.
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Meelis Roos <meelis.roos@ut.ee>
Tested-by: Meelis Roos <meelis.roos@ut.ee>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Another quiet week:
- A fix to silence edma probe error on non-supported platforms from Arnd
- A fix to enable the PL clock for Parallella, to make mainline usable with
the SDK.
- A somewhat verbose fix for the PLL clock tree on VF610
- Enabling of SD/MMC on one of the VF610-based boards (for testing)
- A fix for i.MX where CONFIG_SPI used to be implicitly enabled and now needs
to be added to the defconfig instead
- Another maintainer added for bcm2835: Lee Jones
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Merge tag 'armsoc-for-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another quiet week:
- a fix to silence edma probe error on non-supported platforms from
Arnd
- a fix to enable the PL clock for Parallella, to make mainline
usable with the SDK.
- a somewhat verbose fix for the PLL clock tree on VF610
- enabling of SD/MMC on one of the VF610-based boards (for testing)
- a fix for i.MX where CONFIG_SPI used to be implicitly enabled and
now needs to be added to the defconfig instead
- another maintainer added for bcm2835: Lee Jones"
* tag 'armsoc-for-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: zynq: Enable PL clocks for Parallella
dma: edma: move device registration to platform code
ARM: dts: vf610: add SD node to cosmic dts
MAINTAINERS: update bcm2835 entry
ARM: imx: Fix the removal of CONFIG_SPI option
ARM: imx: clk-vf610: define PLL's clock tree
Pull devicetree bugfix from Grant Likely:
"One buffer overflow bug that shouldn't be left around"
* 'devicetree/merge' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
of: Fix overflow bug in string property parsing functions
Here are 3 tiny fixes for 3.18-rc4. One fixes up a long-stading race
condition in the driver core for removing directories in
/sys/devices/virtual/ and the other 2 fix up the wording of a new
Kconfig option that was added in 3.18-rc1.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are 3 tiny fixes for 3.18-rc4.
One fixes up a long-stading race condition in the driver core for
removing directories in /sys/devices/virtual/ and the other 2 fix up
the wording of a new Kconfig option that was added in 3.18-rc1"
* tag 'driver-core-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
tiny: rename ENABLE_DEV_COREDUMP to ALLOW_DEV_COREDUMP
tiny: reverse logic for DISABLE_DEV_COREDUMP
sysfs: driver core: Fix glue dir race condition by gdp_mutex
Here are some staging/iio fixes for 3.18-rc4.
Nothing major, just a few bugfixes of things that have been reported.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some staging/iio fixes for 3.18-rc4.
Nothing major, just a few bugfixes of things that have been reported"
* tag 'staging-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging:iio:ade7758: Remove "raw" from channel name
staging:iio:ade7758: Fix check if channels are enabled in prenable
staging:iio:ade7758: Fix NULL pointer deref when enabling buffer
iio: as3935: allocate correct iio_device size
io: accel: kxcjk-1013: Fix iio_event_spec direction
iio: tsl4531: Fix compiler error when CONFIG_PM_OPS is not defined
iio: adc: mxs-lradc: Disable the clock on probe failure
iio: st_sensors: Fix buffer copy
staging:iio:ad5933: Drop "raw" from channel names
staging:iio:ad5933: Fix NULL pointer deref when enabling buffer
Here are some tiny serial/tty fixes for 3.18-rc4 that resolve some
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some tiny serial/tty fixes for 3.18-rc4 that resolve some
reported issues"
* tag 'tty-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: Fix pty master poll() after slave closes v2
serial: of-serial: fix uninitialized kmalloc variable
tty/vt: don't set font mappings on vc not supporting this
tty: serial: 8250_mtk: Fix quot calculation
tty: Prevent "read/write wait queue active!" log flooding
tty: Fix high cpu load if tty is unreleaseable
serial: Fix divide-by-zero fault in uart_get_divisor()
Here are some USB fixes for 3.18-rc4.
Just a bunch of little fixes resolving reported issues and new device ids for
existing drivers. Full details are in the shortlog.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB fixes for 3.18-rc4.
Just a bunch of little fixes resolving reported issues and new device
ids for existing drivers. Full details are in the shortlog"
* tag 'usb-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
USB: Update default usb-storage delay_use value in kernel-parameters.txt
USB: cdc-acm: add quirk for control-line state requests
phy: omap-usb2: Enable runtime PM of omap-usb2 phy properly
USB: storage: Fix timeout in usb_stor_euscsi_init() and usb_stor_huawei_e220_init()
USB: cdc-acm: only raise DTR on transitions from B0
Revert "storage: Replace magic number with define in usb_stor_euscsi_init()"
usb: core: notify disconnection when core detects disconnect
usb: core: need to call usb_phy_notify_connect after device setup
uas: Add US_FL_NO_ATA_1X quirk for 2 more Seagate models
xhci: no switching back on non-ULT Haswell
USB: quirks: enable device-qualifier quirk for yet another Elan touchscreen
USB: quirks: enable device-qualifier quirk for another Elan touchscreen
MAINTAINERS: Remove duplicate entry for usbip driver
usb: storage: fix build warnings !CONFIG_PM
usb: Remove references to non-existent PLAT_S5P symbol
uas: Add NO_ATA_1X for VIA VL711 devices
xhci: Disable streams on Asmedia 1042 xhci controllers
USB: HWA: fix a warning message
uas: Add US_FL_NO_ATA_1X quirk for 1 more Seagate model
usb-storage: handle a skipped data phase
...
Pull i2c bugfixes from Wolfram Sang:
"One bigger cleanup (FSF address removal) and two bugfixes for I2C"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: Dispose OF IRQ mapping at client removal time
i2c: at91: don't account as iowait
i2c: remove FSF address
Pull irq fixes from Thomas Gleixner:
"Two fixlets for the armada SoC interrupt controller"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: armada-370-xp: Fix MPIC interrupt handling
irqchip: armada-370-xp: Fix MSI interrupt handling
Pull media fixes from Mauro Carvalho Chehab:
"For:
- some regression fixes at the Remote Controller core and imon driver
- a build fix for certain randconfigs with ir-hix5hd2
- don't feed power to satellite system at ds3000 driver init
It also contains some fixes for drivers added for Kernel 3.18:
- some fixes at the new ISDB-S driver, and the corresponding bits to
fix some descriptors for this Japanese TV standard at the DVB core
- two warning cleanups for sp2 driver if PM is disabled
- change the default mode for the new vivid driver"
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] sp2: sp2_init() can be static
[media] dvb:tc90522: fix always-false expression
[media] dvb-core: set default properties of ISDB-S
[media] dvb:tc90522: fix stats report
[media] vivid: default to single planar device instances
[media] imon: fix other RC type protocol support
[media] ir-hix5hd2 fix build warning
[media] ds3000: fix LNB supply voltage on Tevii S480 on initialization
[media] rc5-decoder: BZ#85721: Fix RC5-SZ decoding
[media] rc-core: fix protocol_change regression in ir_raw_event_register
More changes than I'd like here, most of them for a single bug repeated
in a bunch of drivers with data not being initialized correctly, plus a
fix to lower the severity of a warning introduced in the last merge
window which can legitimately go off so we don't want to alarm users
excessively.
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Merge tag 'regulator-v3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"More changes than I'd like here, most of them for a single bug
repeated in a bunch of drivers with data not being initialized
correctly, plus a fix to lower the severity of a warning introduced in
the last merge window which can legitimately go off so we don't want
to alarm users excessively"
* tag 'regulator-v3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: s2mpa01: zero-initialize regulator match table array
regulator: max8660: zero-initialize regulator match table array
regulator: max77802: zero-initialize regulator match table
regulator: max77686: zero-initialize regulator match table
regulator: max1586: zero-initialize regulator match table array
regulator: max77693: Fix use of uninitialized regulator config
regulator: of: Lower the severity of the error with no container
A couple of small driver fixes for v3.18, both quite problematic if you
hit a use case that's affected.
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Merge tag 'spi-v3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi bugfixes from Mark Brown:
"A couple of small driver fixes for v3.18, both quite problematic if
you hit a use case that's affected"
* tag 'spi-v3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: pxa2xx: toggle clocks on suspend if not disabled by runtime PM
spi: fsl-dspi: Fix CTAR selection
The ENABLE_DEV_COREDUMP option is misleading as it implies that
it gets the framework enabled, this isn't true it just allows it
to get enabled if a driver needs it.
Rename it to ALLOW_DEV_COREDUMP to better capture its semantics.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It's desirable for allnconfig and tinyconfig targets to result in the
least amount of code possible. DISABLE_DEV_COREDUMP exists as a way to
switch off DEV_COREDUMP regardless if any drivers select
WANT_DEV_COREDUMP.
This patch renames the option to ENABLE_DEV_COREDUMP and setting it to
'n' (as in allnconfig or tinyconfig) will effectively disable device
coredump.
Cc: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Clients instantiated from OF get an IRQ mapping created at device
registration time. Dispose the mapping when the client is removed.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
iowait is for blkio [1]. I2C shouldn't use it.
[1] https://lkml.org/lkml/2014/11/3/317
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: stable@kernel.org
There is a race condition when removing glue directory.
It can be reproduced in following test:
path 1: Add first child device
device_add()
get_device_parent()
/*find parent from glue_dirs.list*/
list_for_each_entry(k, &dev->class->p->glue_dirs.list, entry)
if (k->parent == parent_kobj) {
kobj = kobject_get(k);
break;
}
....
class_dir_create_and_add()
path2: Remove last child device under glue dir
device_del()
cleanup_device_parent()
cleanup_glue_dir()
kobject_put(glue_dir);
If path2 has been called cleanup_glue_dir(), but not
call kobject_put(glue_dir), the glue dir is still
in parent's kset list. Meanwhile, path1 find the glue
dir from the glue_dirs.list. Path2 may release glue dir
before path1 call kobject_get(). So kernel will report
the warning and bug_on.
This is a "classic" problem we have of a kref in a list
that can be found while the last instance could be removed
at the same time.
This patch reuse gdp_mutex to fix this race condition.
The following calltrace is captured in kernel 3.4, but
the latest kernel still has this bug.
-----------------------------------------------------
<4>[ 3965.441471] WARNING: at ...include/linux/kref.h:41 kobject_get+0x33/0x40()
<4>[ 3965.441474] Hardware name: Romley
<4>[ 3965.441475] Modules linked in: isd_iop(O) isd_xda(O)...
...
<4>[ 3965.441605] Call Trace:
<4>[ 3965.441611] [<ffffffff8103717a>] warn_slowpath_common+0x7a/0xb0
<4>[ 3965.441615] [<ffffffff810371c5>] warn_slowpath_null+0x15/0x20
<4>[ 3965.441618] [<ffffffff81215963>] kobject_get+0x33/0x40
<4>[ 3965.441624] [<ffffffff812d1e45>] get_device_parent.isra.11+0x135/0x1f0
<4>[ 3965.441627] [<ffffffff812d22d4>] device_add+0xd4/0x6d0
<4>[ 3965.441631] [<ffffffff812d0dbc>] ? dev_set_name+0x3c/0x40
....
<2>[ 3965.441912] kernel BUG at ..../fs/sysfs/group.c:65!
<4>[ 3965.441915] invalid opcode: 0000 [#1] SMP
...
<4>[ 3965.686743] [<ffffffff811a677e>] sysfs_create_group+0xe/0x10
<4>[ 3965.686748] [<ffffffff810cfb04>] blk_trace_init_sysfs+0x14/0x20
<4>[ 3965.686753] [<ffffffff811fcabb>] blk_register_queue+0x3b/0x120
<4>[ 3965.686756] [<ffffffff812030bc>] add_disk+0x1cc/0x490
....
-------------------------------------------------------
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com>
Cc: <stable@vger.kernel.org> #3.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add new quirk for devices that cannot handle control-line state
requests.
Note that we currently send these requests to all devices, regardless of
whether they claim to support it, but that errors are only logged if
support is claimed.
Since commit 0943d8ead3 ("USB: cdc-acm: use tty-port dtr_rts"), which
only changed the timings for these requests slightly, this has been
reported to cause occasional firmware crashes on Simtec Electronics
Entropy Key devices after re-enumeration. Enable the quirk for this
device.
Reported-by: Nix <nix@esperi.org.uk>
Tested-by: Nix <nix@esperi.org.uk>
Cc: stable <stable@vger.kernel.org> # v3.16
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A single fix this for dwc2 this time. Because of
excessive debugging messages, dwc2 would sometimes
fail enumeration. The fix is simple, just converting
a dev_info() into dev_dbg().
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'fixes-for-v3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v3.18-rc4
A single fix this for dwc2 this time. Because of
excessive debugging messages, dwc2 would sometimes
fail enumeration. The fix is simple, just converting
a dev_info() into dev_dbg().
Signed-off-by: Felipe Balbi <balbi@ti.com>
Commit f95499c303 ("n_tty: Don't wait for buffer work in read() loop")
introduces a race window where a pty master can be signalled that the pty
slave was closed before all the data that the slave wrote is delivered.
Commit f8747d4a46 ("tty: Fix pty master read() after slave closes") fixed the
problem in case of n_tty_read, but the problem still exists for n_tty_poll.
This can be seen by running 'for ((i=0; i<100;i++));do ./test.py ;done'
where test.py is:
import os, select, pty
(pid, pty_fd) = pty.fork()
if pid == 0:
os.write(1, 'This string should be received by parent')
else:
poller = select.epoll()
poller.register( pty_fd, select.EPOLLIN )
ready = poller.poll( 1 * 1000 )
for fd, events in ready:
if not events & select.EPOLLIN:
print 'missed POLLIN event'
else:
print os.read(fd, 100)
poller.close()
The string from the slave is missed several times.
This patch takes the same approach as the fix for read and special cases
this condition for poll.
Tested on 3.16.
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Two fixes of non-atomic allocations in write paths.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v3.18-rc4
Two fixes of non-atomic allocations in write paths.
Signed-off-by: Johan Hovold <johan@kernel.org>
- Fix card detection regression.
The MMC_CAP2_CD_ACTIVE_HIGH and MMC_CAP2_RO_ACTIVE_HIGH could under
some circumstances be set incorrectly, causing the card detection to
fail.
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Merge tag 'mmc-v3.18-2' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC fix from Ulf Hansson:
"Fix card detection regression in the MMC core.
The MMC_CAP2_CD_ACTIVE_HIGH and MMC_CAP2_RO_ACTIVE_HIGH could under
some circumstances be set incorrectly, causing the card detection to
fail"
* tag 'mmc-v3.18-2' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: core: fix card detection regression
If PM_RUNTIME is enabled, it is easy to trigger the following backtrace
on pxa2xx hosts:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at /home/lumag/linux/arch/arm/mach-pxa/clock.c:35 clk_disable+0xa0/0xa8()
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Not tainted 3.17.0-00007-g1b3d2ee-dirty #104
[<c000de68>] (unwind_backtrace) from [<c000c078>] (show_stack+0x10/0x14)
[<c000c078>] (show_stack) from [<c001d75c>] (warn_slowpath_common+0x6c/0x8c)
[<c001d75c>] (warn_slowpath_common) from [<c001d818>] (warn_slowpath_null+0x1c/0x24)
[<c001d818>] (warn_slowpath_null) from [<c0015e80>] (clk_disable+0xa0/0xa8)
[<c0015e80>] (clk_disable) from [<c02507f8>] (pxa2xx_spi_suspend+0x2c/0x34)
[<c02507f8>] (pxa2xx_spi_suspend) from [<c0200360>] (platform_pm_suspend+0x2c/0x54)
[<c0200360>] (platform_pm_suspend) from [<c0207fec>] (dpm_run_callback.isra.14+0x2c/0x74)
[<c0207fec>] (dpm_run_callback.isra.14) from [<c0209254>] (__device_suspend+0x120/0x2f8)
[<c0209254>] (__device_suspend) from [<c0209a94>] (dpm_suspend+0x50/0x208)
[<c0209a94>] (dpm_suspend) from [<c00455ac>] (suspend_devices_and_enter+0x8c/0x3a0)
[<c00455ac>] (suspend_devices_and_enter) from [<c0045ad4>] (pm_suspend+0x214/0x2a8)
[<c0045ad4>] (pm_suspend) from [<c04b5c34>] (test_suspend+0x14c/0x1dc)
[<c04b5c34>] (test_suspend) from [<c000880c>] (do_one_initcall+0x8c/0x1fc)
[<c000880c>] (do_one_initcall) from [<c04aecfc>] (kernel_init_freeable+0xf4/0x1b4)
[<c04aecfc>] (kernel_init_freeable) from [<c0378078>] (kernel_init+0x8/0xec)
[<c0378078>] (kernel_init) from [<c0009590>] (ret_from_fork+0x14/0x24)
---[ end trace 46524156d8faa4f6 ]---
This happens because suspend function tries to disable a clock that is
already disabled by runtime_suspend callback. Add if
(!pm_runtime_suspended()) checks to suspend/resume path.
Fixes: 7d94a50585 (spi/pxa2xx: add support for runtime PM)
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Reported-by: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
The info pointer points to an uninitialized kmalloced space.
If a device doesn't have clk property, then info->clk may
have unpredicated value and cause call trace. So use kzalloc
to make sure it is NULL initialized.
Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We can call this function for a dummy console that doesn't support
setting the font mapping, which will result in a null ptr BUG. So check
for this case and return error for consoles w/o font mapping support.
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=59321
Signed-off-by: Imre Deak <imre.deak@intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The calculation of value quot for highspeed register set to three
was wrong. This patch fixes the calculation so that the serial port
for baudrates bigger then 576000 baud is working correctly.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The horrible split between the low-level part of the edma support
and the dmaengine front-end driver causes problems on multiplatform
kernels. This is an attempt to improve the situation slightly
by only registering the dmaengine devices that are actually
present.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[olof: add missing include of linux/dma-mapping.h]
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
Only print one warning when a task is on the read_wait or write_wait
wait queue at final tty release.
Cc: <stable@vger.kernel.org> # 3.4.x+
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kernel oops can cause the tty to be unreleaseable (for example, if
n_tty_read() crashes while on the read_wait queue). This will cause
tty_release() to endlessly loop without sleeping.
Use a killable sleep timeout which grows by 2n+1 jiffies over the interval
[0, 120 secs.) and then jumps to forever (but still killable).
NB: killable just allows for the task to be rewoken manually, not
to be terminated.
Cc: <stable@vger.kernel.org> # since before 2.6.32
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
uart_get_baud_rate() will return baud == 0 if the max rate is set
to the "magic" 38400 rate and the SPD_* flags are also specified.
On the first iteration, if the current baud rate is higher than the
max, the baud rate is clamped at the max (which in the degenerate
case is 38400). On the second iteration, the now-"magic" 38400 baud
rate selects the possibly higher alternate baud rate indicated by
the SPD_* flag. Since only two loop iterations are performed, the
loop is exited, a kernel WARNING is generated and a baud rate of
0 is returned.
Reproducible with:
setserial /dev/ttyS0 spd_hi base_baud 38400
Only perform the "magic" 38400 -> SPD_* baud transform on the first
loop iteration, which prevents the degenerate case from recognizing
the clamped baud rate as the "magic" 38400 value.
Reported-by: Robert Święcki <robert@swiecki.net>
Cc: <stable@vger.kernel.org> # all
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The USB OTG port does not work since v3.16 on omap platform.
This is a regression introduced by the commit
eb82a3d846 (phy: omap-usb2: Balance pm_runtime_enable() on probe failure
and remove).
This because the call to pm_runtime_enable() function is moved after the
call to devm_phy_create() function, which has side effect since later in
the subsequent calls of devm_phy_create() there is a check with
pm_runtime_enabled() to configure few things.
Fixes: eb82a3d846
Signed-off-by: Oussama Ghorbel <ghorbel@pivasoftware.com>
Tested-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The timeout argument to usb_stor_control_msg() is specified in jiffies, not
milliseconds.
Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tsl4531 - fix a compile error when CONFIG_PM_OPS not set.
* kxcjk-1013 - event spec direction was invalid - leading to 'interesting'
attrribute names.
* as3935 - sizeof(st) used instead of sizeof(*st) leading to allocation of
space for a pointer rather than the structure desired.
* ade7758 - Another null pointer deref fix due to different channels
being provided to the the buffer register than used for the sysfs
side of things.
* ade7758 - Check there is a channel enabled in preenable for the buffer
before doing anything.
* ade7758 - Drop a stray raw from the channel name that leads to _raw_raw
postfix.
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Merge tag 'iio-fixes-for-3.18b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
Second round of IIO fixes for the 3.18 cycle.
* tsl4531 - fix a compile error when CONFIG_PM_OPS not set.
* kxcjk-1013 - event spec direction was invalid - leading to 'interesting'
attrribute names.
* as3935 - sizeof(st) used instead of sizeof(*st) leading to allocation of
space for a pointer rather than the structure desired.
* ade7758 - Another null pointer deref fix due to different channels
being provided to the the buffer register than used for the sysfs
side of things.
* ade7758 - Check there is a channel enabled in preenable for the buffer
before doing anything.
* ade7758 - Drop a stray raw from the channel name that leads to _raw_raw
postfix.
Make sure to only raise DTR on transitions from B0 in set_termios.
Also allow set_termios to be called from open with a termios_old of
NULL. Note that DTR will not be raised prematurely in this case.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit bda9893c50 as it was
incorrect.
Reported-by: Mark Knibbs <markk@clara.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"raw" is a property of a channel, but should not be part of the name of
channel.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
We should check if a channel is enabled, not if no channels are enabled.
Fixes: 550268ca11 ("staging:iio: scrap scan_count and ensure all drivers use active_scan_mask")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
In older versions of the IIO framework it was possible to pass a completely
different set of channels to iio_buffer_register() as the one that is
assigned to the IIO device. Commit 959d2952d1 ("staging:iio: make
iio_sw_buffer_preenable much more general.") introduced a restriction that
requires that the set of channels that is passed to iio_buffer_register() is
a subset of the channels assigned to the IIO device as the IIO core will use
the list of channels that is assigned to the device to lookup a channel by
scan index in iio_compute_scan_bytes(). If it can not find the channel the
function will crash. This patch fixes the issue by making sure that the same
set of channels is assigned to the IIO device and passed to
iio_buffer_register().
Note that we need to remove the IIO_CHAN_INFO_RAW and IIO_CHAN_INFO_SCALE
info attributes from the channels since we don't actually want those to be
registered.
Fixes the following crash:
Unable to handle kernel NULL pointer dereference at virtual address 00000016
pgd = d2094000
[00000016] *pgd=16e39831, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 1 PID: 1695 Comm: bash Not tainted 3.17.0-06329-g29461ee #9686
task: d7768040 ti: d5bd4000 task.ti: d5bd4000
PC is at iio_compute_scan_bytes+0x38/0xc0
LR is at iio_compute_scan_bytes+0x34/0xc0
pc : [<c0316de8>] lr : [<c0316de4>] psr: 60070013
sp : d5bd5ec0 ip : 00000000 fp : 00000000
r10: d769f934 r9 : 00000000 r8 : 00000001
r7 : 00000000 r6 : c8fc6240 r5 : d769f800 r4 : 00000000
r3 : d769f800 r2 : 00000000 r1 : ffffffff r0 : 00000000
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 18c5387d Table: 1209404a DAC: 00000015
Process bash (pid: 1695, stack limit = 0xd5bd4240)
Stack: (0xd5bd5ec0 to 0xd5bd6000)
5ec0: d769f800 d7435640 c8fc6240 d769f984 00000000 c03175a4 d7435690 d7435640
5ee0: d769f990 00000002 00000000 d769f800 d5bd4000 00000000 000b43a8 c03177f4
5f00: d769f810 0162b8c8 00000002 c8fc7e00 d77f1d08 d77f1da8 c8fc7e00 c01faf1c
5f20: 00000002 c010694c c010690c d5bd5f88 00000002 c8fc6840 c8fc684c c0105e08
5f40: 00000000 00000000 d20d1580 00000002 000af408 d5bd5f88 c000de84 c00b76d4
5f60: d20d1580 000af408 00000002 d20d1580 d20d1580 00000002 000af408 c000de84
5f80: 00000000 c00b7a44 00000000 00000000 00000002 b6ebea78 00000002 000af408
5fa0: 00000004 c000dd00 b6ebea78 00000002 00000001 000af408 00000002 00000000
5fc0: b6ebea78 00000002 000af408 00000004 bee96a4c 000a6094 00000000 000b43a8
5fe0: 00000000 bee969cc b6e2eb77 b6e6525c 40070010 00000001 00000000 00000000
[<c0316de8>] (iio_compute_scan_bytes) from [<c03175a4>] (__iio_update_buffers+0x248/0x438)
[<c03175a4>] (__iio_update_buffers) from [<c03177f4>] (iio_buffer_store_enable+0x60/0x7c)
[<c03177f4>] (iio_buffer_store_enable) from [<c01faf1c>] (dev_attr_store+0x18/0x24)
[<c01faf1c>] (dev_attr_store) from [<c010694c>] (sysfs_kf_write+0x40/0x4c)
[<c010694c>] (sysfs_kf_write) from [<c0105e08>] (kernfs_fop_write+0x110/0x154)
[<c0105e08>] (kernfs_fop_write) from [<c00b76d4>] (vfs_write+0xbc/0x170)
[<c00b76d4>] (vfs_write) from [<c00b7a44>] (SyS_write+0x40/0x78)
[<c00b7a44>] (SyS_write) from [<c000dd00>] (ret_fast_syscall+0x0/0x30)
Fixes: 959d2952d1 ("staging:iio: make iio_sw_buffer_preenable much more general.")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Because IIO_EV_DIR_* are not bitmasks but enums,
IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING is not equal
with IIO_EV_DIR_EITHER.
This could lead to potential misformatted sysfs attributes
like:
* in_accel_x_thresh_(null)_en
* in_accel_x_thresh_(null)_period
* in_accel_x_thresh_(null)_value
or even memory corruption.
Fixes: b4b491c083 (iio: accel: kxcjk-1013: Support threshold)
Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Fix the compiler error when the CONFIG_PM_OPS flag is not set.
drivers/iio/light/tsl4531.c:235:8: error: ‘tsl4531_suspend’ undeclared here (not in a function)
drivers/iio/light/tsl4531.c:235:8: error: ‘tsl4531_resume’ undeclared here (not in a function)
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
We should disable lradc->clk in the case of errors in the probe function.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: <Stable@vger.kernel.org>
Use byte_for_channel as iterator to properly initialize the buffer.
Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: <Stable@vger.kernel.org>
"raw" is the name of a channel property, but should not be part of the
channel name itself.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
In older versions of the IIO framework it was possible to pass a
completely different set of channels to iio_buffer_register() as the one
that is assigned to the IIO device. Commit 959d2952d1 ("staging:iio: make
iio_sw_buffer_preenable much more general.") introduced a restriction that
requires that the set of channels that is passed to iio_buffer_register() is
a subset of the channels assigned to the IIO device as the IIO core will use
the list of channels that is assigned to the device to lookup a channel by
scan index in iio_compute_scan_bytes(). If it can not find the channel the
function will crash. This patch fixes the issue by making sure that the same
set of channels is assigned to the IIO device and passed to
iio_buffer_register().
Fixes the follow NULL pointer derefernce kernel crash:
Unable to handle kernel NULL pointer dereference at virtual address 00000016
pgd = d53d0000
[00000016] *pgd=1534e831, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 1 PID: 1626 Comm: bash Not tainted 3.15.0-19969-g2a180eb-dirty #9545
task: d6c124c0 ti: d539a000 task.ti: d539a000
PC is at iio_compute_scan_bytes+0x34/0xa8
LR is at iio_compute_scan_bytes+0x34/0xa8
pc : [<c03052e4>] lr : [<c03052e4>] psr: 60070013
sp : d539beb8 ip : 00000001 fp : 00000000
r10: 00000002 r9 : 00000000 r8 : 00000001
r7 : 00000000 r6 : d6dc8800 r5 : d7571000 r4 : 00000002
r3 : d7571000 r2 : 00000044 r1 : 00000001 r0 : 00000000
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 18c5387d Table: 153d004a DAC: 00000015
Process bash (pid: 1626, stack limit = 0xd539a240)
Stack: (0xd539beb8 to 0xd539c000)
bea0: c02fc0e4 d7571000
bec0: d76c1640 d6dc8800 d757117c 00000000 d757112c c0305b04 d76c1690 d76c1640
bee0: d7571188 00000002 00000000 d7571000 d539a000 00000000 000dd1c8 c0305d54
bf00: d7571010 0160b868 00000002 c69d3900 d7573278 d7573308 c69d3900 c01ece90
bf20: 00000002 c0103fac c0103f6c d539bf88 00000002 c69d3b00 c69d3b0c c0103468
bf40: 00000000 00000000 d7694a00 00000002 000af408 d539bf88 c000dd84 c00b2f94
bf60: d7694a00 000af408 00000002 d7694a00 d7694a00 00000002 000af408 c000dd84
bf80: 00000000 c00b32d0 00000000 00000000 00000002 b6f1aa78 00000002 000af408
bfa0: 00000004 c000dc00 b6f1aa78 00000002 00000001 000af408 00000002 00000000
bfc0: b6f1aa78 00000002 000af408 00000004 be806a4c 000a6094 00000000 000dd1c8
bfe0: 00000000 be8069cc b6e8ab77 b6ec125c 40070010 00000001 22940489 154a5007
[<c03052e4>] (iio_compute_scan_bytes) from [<c0305b04>] (__iio_update_buffers+0x248/0x438)
[<c0305b04>] (__iio_update_buffers) from [<c0305d54>] (iio_buffer_store_enable+0x60/0x7c)
[<c0305d54>] (iio_buffer_store_enable) from [<c01ece90>] (dev_attr_store+0x18/0x24)
[<c01ece90>] (dev_attr_store) from [<c0103fac>] (sysfs_kf_write+0x40/0x4c)
[<c0103fac>] (sysfs_kf_write) from [<c0103468>] (kernfs_fop_write+0x110/0x154)
[<c0103468>] (kernfs_fop_write) from [<c00b2f94>] (vfs_write+0xd0/0x160)
[<c00b2f94>] (vfs_write) from [<c00b32d0>] (SyS_write+0x40/0x78)
[<c00b32d0>] (SyS_write) from [<c000dc00>] (ret_fast_syscall+0x0/0x30)
Code: ea00000e e1a01008 e1a00005 ebfff6fc (e5d0a016)
Fixes: 959d2952d1 ("staging:iio: make iio_sw_buffer_preenable much more general.")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Since commit 89168b4899 ("mmc: core: restore detect line inversion
semantics"), the SD card on i.MX28 (and possibly other) devices isn't
detected and booting stops at:
[ 4.120617] Waiting for root device /dev/mmcblk0p3...
This is caused by the MMC_CAP2_CD_ACTIVE_HIGH flag being set incorrectly
when the host controller doesn't use a GPIO for card detection (but
instead uses a dedicated pin). In this case mmc_gpiod_request_cd() will
return before assigning to the gpio_invert variable, leaving the
variable uninitialized. The variable then gets used to set the flag.
This patch fixes the issue by making sure gpio_invert is set to false
when a GPIO isn't used. After this patch, i.MX28 boots fine.
The MMC_CAP2_RO_ACTIVE_HIGH (write protect) flag is also set incorrectly
for the exact same reason (it uses the same uninitialized variable), so
this patch fixes that too.
Fixes: 89168b4899 ("mmc: core: restore detect line inversion semantics")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
- Fix a regression on Vybrid platform which is caused by commit
dc4805c2e7 (ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3
driver), and results in a missing configuration on PLL clocks.
- Fix a regression with i.MX defconfig files where CONFIG_SPI option
gets lost accidentally.
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Merge tag 'imx-fixes-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Merge "ARM: imx: fixes for 3.18, 2nd round" from Shawn Guo:
"This is the second round of i.MX fixes for 3.18. The clk-vf610 fix is
relatively big, because it needs some adaption to the change made by
offending commit dc4805c2e7 (ARM: imx: remove ENABLE and BYPASS bits
from clk-pllv3 driver). And it should have been sent to you for earlier
-rc inclusion, but unfortunately it got delayed for some time because
Stefan wasn't aware of my email address change."
The i.MX fixes for 3.18, 2nd round:
- Fix a regression on Vybrid platform which is caused by commit
dc4805c2e7 (ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3
driver), and results in a missing configuration on PLL clocks.
- Fix a regression with i.MX defconfig files where CONFIG_SPI option
gets lost accidentally.
* tag 'imx-fixes-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (460 commits)
ARM: imx: Fix the removal of CONFIG_SPI option
ARM: imx: clk-vf610: define PLL's clock tree
+ Linux 3.18-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull thermal fixes from Eduardo Valentin:
"Specifics:
- a few code fixes improving the Exynos code base. They remove dead
and unreachable code. No functional changes here
- in Exynos code base, fixes regarding the right usage of features
(TRIMINFO and TRIMRELOAD)
- documentation of RCAR thermal
- fix in the of-thermal, regarding the proper usage of of-APIs
- fixes on thermal-core, removal of unreachable code"
[ Eduardo is sending the thermal fixes on behalf of Rui Zhang this time.
Rui is currently unable to send pull requests due to troubles with his
machine and he's currently in a business trip ]
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
Thermal:Remove usless if(!result) before return tz
thermal: exynos: fix IRQ clearing on TMU initialization
thermal: fix multiple disbalanced device node counters
thermal: rcar: Add binding docs for new R-Car Gen2 SoCs
thermal: exynos: Add support for TRIM_RELOAD feature at Exynos3250
thermal: exynos: Add support for many TRIMINFO_CTRL registers
thermal: samsung: Exynos5260 and Exynos5420 should not use TRIM_RELOAD flag
thermal: exynos: remove identical values from exynos*_tmu_registers structures
thermal: exynos: remove redundant pdata checks from exynos_tmu_control()
thermal: exynos: cache non_hw_trigger_levels in pdata
thermal: exynos: simplify temp_to_code() and code_to_temp()
thermal: exynos: remove redundant threshold_code checks from exynos_tmu_initialize()
thermal: exynos: remove redundant pdata checks from exynos_tmu_initialize()
thermal: exynos: remove dead code for HW_MODE calibration
thermal: exynos: remove unused struct exynos_tmu_registers entries
Quirks and DMI match additions.
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Merge tag 'platform-drivers-x86-v3.18-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
Pull x86 platform drievr updates from Darren Hart:
"A short list of patches applying quirks and new DMI matches. These
pass my basic build tests and have spent 4 days in linux-next"
* tag 'platform-drivers-x86-v3.18-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
quirk for Lenovo Yoga 3: no rfkill switch
acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80
samsung-laptop: Add broken-acpi-video quirk for NC210/NC110
asus-nb-wmi: Add wapf4 quirk for the X550VB
toshiba_acpi: Add Toshiba TECRA A50-A to the alt keymap dmi list
There are only 4 CTAR registers (CTAR0 - CTAR3) so we can only use the
lower 2 bits of the chip select to select a CTAR register.
SPI_PUSHR_CTAS used the lower 3 bits which would result in wrong bit values
if the chip selects 4/5 are used. For those chip selects SPI_CTAR even
calculated offsets of non-existing registers.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
The string property read helpers will run off the end of the buffer if
it is handed a malformed string property. Rework the parsers to make
sure that doesn't happen. At the same time add new test cases to make
sure the functions behave themselves.
The original implementations of of_property_read_string_index() and
of_property_count_strings() both open-coded the same block of parsing
code, each with it's own subtly different bugs. The fix here merges
functions into a single helper and makes the original functions static
inline wrappers around the helper.
One non-bugfix aspect of this patch is the addition of a new wrapper,
of_property_read_string_array(). The new wrapper is needed by the
device_properties feature that Rafael is working on and planning to
merge for v3.19. The implementation is identical both with and without
the new static inline wrapper, so it just got left in to reduce the
churn on the header file.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Darren Hart <darren.hart@intel.com>
Cc: <stable@vger.kernel.org> # v3.3+: Drop selftest hunks that don't apply
- Two fixes for the Baytrail driver affecting IRQs and
output state in sysfs
- Use the linux-gpio mailing list also for pinctrl patches
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Merge tag 'pinctrl-v3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin-control fixes from Linus Walleij:
"This kernel cycle has been calm for both pin control and GPIO so far
but here are three pin control patches for you anyway, only really
dealing with Baytrail:
- Two fixes for the Baytrail driver affecting IRQs and output state
in sysfs
- Use the linux-gpio mailing list also for pinctrl patches"
* tag 'pinctrl-v3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: baytrail: show output gpio state correctly on Intel Baytrail
pinctrl: use linux-gpio mailing list
pinctrl: baytrail: Clear DIRECT_IRQ bit
It is safe to call notify disconnect when the usb core
thinks the device is disconnected.
This commit also fixes one bug found at below situation:
we have not enabled usb wakeup, we do system suspend when
there is an usb device at the port, after suspend, we plug out
the usb device, then plug in device again. At that time,
the nofity disconnect was not called at current code, as
the controller doesn't know the usb device was disconnected
during the suspend, but USB core knows the port has changed
during that periods.
So to fix this problem, and let the usb core call notify disconnect.
Cc: 3.17+ <stable@vger.kernel.org>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since we notify disconnecting based on the usb device is existed
(port_dev->child, the child device at roothub is not NULL), we
need to notify connect after device has been registered.
This fixes a bug that do fast plug in/out test, and the notify_disconnect
is not called due to roothub child is NULL and the enumeration has failed.
Cc: v3.17+ <stable@vger.kernel.org>
Signed-off-by: Tony Zheng <Tony.Zheng@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These drives hang when receiving ATA12 commands, so set the US_FL_NO_ATA_1X
quirk to filter these out.
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The switch back is limited to ULT even on HP. The contrary
finding arose by bad luck in BIOS versions for testing.
This fixes spontaneous resume from S3 on some HP laptops.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently this quirk is enabled for the model with the device id 0x0089, it
is needed for the 0x009b model, which is found on the Fujitsu Lifebook u904
as well.
Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Functions fw5895_init() and config_autodelink_before_power_down() are used
only when CONFIG_PM is defined.
drivers/usb/storage/realtek_cr.c:699:13: warning: 'fw5895_init' defined but not used [-Wunused-function]
drivers/usb/storage/realtek_cr.c:629:12: warning: 'config_autodelink_before_power_down' defined but not used [-Wunused-function]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The PLAT_S5P Kconfig symbol was removed in commit d78c16ccde
("ARM: SAMSUNG: Remove remaining legacy code"). There are still
some references left, fix that by replacing them with ARCH_S5PV210.
Fixes: d78c16ccde ("ARM: SAMSUNG: Remove remaining legacy code")
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Just like some Seagate enclosures, these devices do not seem to grok ata
pass through commands.
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Streams seem to be broken on the Asmedia 1042. An uas capable Seagate disk
which is known to work fine with other controllers causes the system to freeze
when connected over usb-3 with this controller, where as it works fine with
uas in usb-2 ports, indicating a problem with streams.
This is a bit bigger hammer then I would like to use for this, but for now it
will have to make do. I've ordered a pci-e usb controller card with an Asmedia
1042, once that arrives I'll try to get streams to work (with a quirk flag if
necessary) and then we can re-enable them. For now this at least makes uas
capable disk enclosures work again by forcing fallback to the usb-storage
driver.
Reported-by: Bogdan Mihalcea <bogdan.mihalcea@infim.ro>
Cc: Bogdan Mihalcea <bogdan.mihalcea@infim.ro>
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We wanted to print the version as (major).(minor) but because the shift
operation is higher precedence than the mask then we print
(minor).(minor).
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These drives hang when receiving ATA12 commands, so set the US_FL_NO_ATA_1X
quirk to filter these out.
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sometimes mass-storage devices using the Bulk-only transport will
mistakenly skip the data phase of a command. Rather than sending the
data expected by the host or sending a zero-length packet, they go
directly to the status phase and send the CSW.
This causes problems for usb-storage, for obvious reasons. The driver
will interpret the CSW as a short data transfer and will wait to
receive a CSW. The device won't have anything left to send, so the
command eventually times out.
The SCSI layer doesn't retry commands after they time out (this is a
relatively recent change). Therefore we should do our best to detect
a skipped data phase and handle it promptly.
This patch adds code to do that. If usb-storage receives a short
13-byte data transfer from the device, and if the first four bytes of
the data match the CSW signature, the driver will set the residue to
the full transfer length and interpret the data as a CSW.
This fixes Bugzilla #86611.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Tested-by: Paul Osmialowski <newchief@king.net.pl>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit fixes the following oops:
[10238.622067] scsi host3: uas_eh_bus_reset_handler start
[10240.766164] usb 3-4: reset SuperSpeed USB device number 3 using xhci_hcd
[10245.779365] usb 3-4: device descriptor read/8, error -110
[10245.883331] usb 3-4: reset SuperSpeed USB device number 3 using xhci_hcd
[10250.897603] usb 3-4: device descriptor read/8, error -110
[10251.058200] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
[10251.058244] IP: [<ffffffff815ac6e1>] xhci_check_streams_endpoint+0x91/0x140
<snip>
[10251.059473] Call Trace:
[10251.059487] [<ffffffff815aca6c>] xhci_calculate_streams_and_bitmask+0xbc/0x130
[10251.059520] [<ffffffff815aeb5f>] xhci_alloc_streams+0x10f/0x5a0
[10251.059548] [<ffffffff810a4685>] ? check_preempt_curr+0x75/0xa0
[10251.059575] [<ffffffff810a46dc>] ? ttwu_do_wakeup+0x2c/0x100
[10251.059601] [<ffffffff810a49e6>] ? ttwu_do_activate.constprop.111+0x66/0x70
[10251.059635] [<ffffffff815779ab>] usb_alloc_streams+0xab/0xf0
[10251.059662] [<ffffffffc0616b48>] uas_configure_endpoints+0x128/0x150 [uas]
[10251.059694] [<ffffffffc0616bac>] uas_post_reset+0x3c/0xb0 [uas]
[10251.059722] [<ffffffff815727d9>] usb_reset_device+0x1b9/0x2a0
[10251.059749] [<ffffffffc0616f42>] uas_eh_bus_reset_handler+0xb2/0x190 [uas]
[10251.059781] [<ffffffff81514293>] scsi_try_bus_reset+0x53/0x110
[10251.059808] [<ffffffff815163b7>] scsi_eh_bus_reset+0xf7/0x270
<snip>
The problem is the following call sequence (simplified):
1) usb_reset_device
2) usb_reset_and_verify_device
2) hub_port_init
3) hub_port_finish_reset
3) xhci_discover_or_reset_device
This frees xhci->devs[slot_id]->eps[ep_index].ring for all eps but 0
4) usb_get_device_descriptor
This fails
5) hub_port_init fails
6) usb_reset_and_verify_device fails, does not restore device config
7) uas_post_reset
8) xhci_alloc_streams
NULL deref on the free-ed ring
This commit fixes this by not allowing usb_alloc_streams to continue if
the device is not configured.
Note that we do allow usb_free_streams to continue after a (logical)
disconnect, as it is necessary to explicitly free the streams at the xhci
controller level.
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver wasn't properly configuring the hardware for the current
termios settings under all conditions. Ensure that termios are
written to the device when the port is activated.
Signed-off-by: Jim Paris <jim@jtan.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add device-id entry for GW Instek AFG-2225, which has a byte swapped
bInterfaceSubClass (0x20).
Reported-by: Karl Palsson <karlp@tweak.net.au>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull ceph fixes from Sage Weil:
"There is a GFP flag fix from Mike Christie, an error code fix from
Jan, and fixes for two unnecessary allocations (kmalloc and workqueue)
from Ilya. All are well tested.
Ilya has one other fix on the way but it didn't get tested in time"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: eliminate unnecessary allocation in process_one_ticket()
rbd: Fix error recovery in rbd_obj_read_sync()
libceph: use memalloc flags for net IO
rbd: use a single workqueue for all devices
result is always zero when comes here.
Signed-off-by: Yao Dongdong <yaodongdong@huawei.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
A surprisingly small batch of fixes for -rc3. Suspiciously small, I'd say.
Anyway, most of this are a few defconfig updates. Some for omap to deal
with kernel binary size (moving ipv6 to module, etc). A larger one for
socfpga that refreshes with some churn, but also turns on a few options
that makes the newly-added board in my bootfarm usable for testing.
OMAP3 will also now warn when booted with legacy (non-DT) boot protocols,
hopefully encouraging those who still care about some of those platforms
to submit DT support and report bugs where needed. Nothing stops working
though, this is just to warn for future deprecation.
Beyond this, very few actual bugfixes. A PXA fix for DEBUG_LL boot hangs,
a missing terminting entry in a dt_match array on RealView a MTD fix on
OMAP with NAND.
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Merge tag 'armsoc-for-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A surprisingly small batch of fixes for -rc3. Suspiciously small, I'd
say.
Anyway, most of this are a few defconfig updates. Some for omap to
deal with kernel binary size (moving ipv6 to module, etc). A larger
one for socfpga that refreshes with some churn, but also turns on a
few options that makes the newly-added board in my bootfarm usable for
testing.
OMAP3 will also now warn when booted with legacy (non-DT) boot
protocols, hopefully encouraging those who still care about some of
those platforms to submit DT support and report bugs where needed.
Nothing stops working though, this is just to warn for future
deprecation.
Beyond this, very few actual bugfixes. A PXA fix for DEBUG_LL boot
hangs, a missing terminting entry in a dt_match array on RealView a
MTD fix on OMAP with NAND"
[ Obviously missed rc3, will make rc4 instead ;) ]
* tag 'armsoc-for-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
MAINTAINERS: drop list entry for davinci
ARM: OMAP2+: Warn about deprecated legacy booting mode
ARM: omap2plus_defconfig: Fix errors with NAND BCH
ARM: multi_v7_defconfig: fix support for APQ8084
soc: versatile: Add terminating entry for realview_soc_of_match
ARM: ixp4xx: remove compilation warnings in io.h
MAINTAINERS: Add Soren as reviewer for Zynq
ARM: omap2plus_defconfig: Fix bloat caused by having ipv6 built-in
ARM: socfpga_defconfig: Update defconfig for SoCFPGA
ARM: pxa: fix hang on startup with DEBUG_LL
drivers/media/dvb-frontends/sp2.c:269:5: sparse: symbol 'sp2_init' was not declared. Should it be static?
drivers/media/dvb-frontends/sp2.c:351:5: sparse: symbol 'sp2_exit' was not declared. Should it be static?
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The default used to be that the first vivid device instance was
single planar, the second multi planar, the third single planar, etc.
However, that turned out to be unexpected and awkward. Change the
driver to always default to single planar.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The struct of_regulator_match rmatch[] is declared as a non-static local
variable so the structure members are not auto-initialized.
Initialize the array at declaration time to avoid the structure members
values to be indeterminate and have sane defaults instead.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
The struct of_regulator_match rmatch[] is declared as a non-static local
variable so the structure members are not auto-initialized.
Initialize the array at declaration time to avoid the structure members
values to be indeterminate and have sane defaults instead.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
