This spinlock is only used to protect changes to the private data 'dma_cfg'.
Before calling any function that would change the 'dma_cfg' the spinlock
'mite_channel_lock' is also locked. That spinlock is not unlocked until
after the 'dma_cfg' change.
Remove the redundant spinlock.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
enum ni_gpct_register and enum ni_660x_register now have a 1:1
relationship for the NITIO_* registers. The static const array
is no longer necessary to find the proper NI660X_* register for
a given NITIO_*. Remove it and refactor the register read/write
functions.
Use the NITIO_* values to init the ni_660x_reg_data[] array and
remove the unnecessary NI660X_* enum values.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This fuction just returns a pointer from the private data. The name
might provide some confusion since it appears to be an exported
function from the mite driver.
Just remove it and get the pointer directly where needed.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_660x: allocate counters early in (*auto_attach)
The ni_gpct_device_construct() could fail allocating the memory for
device and its counters. For aesthetics, call the function before
initializing the subdevices.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert this big switch into an array and refactor ni_660x_gpct_{write,read}()
functions to use the array to find the register offset.
All the TIO (GPCT) registers are included in the array except for NITIO_G0_ABZ
and NITIO_G1_ABZ. These registers only exist on the ni_pcimio m-series boards
and this driver will never read/write them.
Just in case someone adds a new entry to the enum ni_gpct_register in ni_tio.h,
add a dev_warn() for any unhandled registers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_660x: tidy up Digital I/O subdevice init
Add some whitespace to the Digital I/O subdevice init and add a
comment about the channels. This driver is a bit goofy, only 32 of
the 40 channels can actually be used for Digital I/Os and 32 of
them can be routed to the counters for alternate use.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_660x: remove BUG_ON() in ni_660x_request_mite_channel()
This BUG_ON() happens if a mite DMA channel is already requested when an
ansynchronous command is started for one of the counter subdevices.
The comedi core will only call the (*do_cmd) if the subdevice is not busy.
In this driver, the (*cancel) for the subdevice will always release any
requested mite DMA channel.
Remove the BUG_ON() which can never occur.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_660x: cleanup the NI660X_DMA_CFG register helpers
The BUG_ON() checks in the helper functions are not necessary. The mite
driver quiries the PCI chip to determine the number of DMA channels.
This is then used when a DMA channel is requested so the channel will
always be in range.
Convert the inline functions used to set the bits in the NI600X_DMA_CFG
register into macros. Also convert the associated enum dma_selection.
This clarifies the association with the register.
Rename the associated 'dma_configuration_soft_copies' member of the
private data to allow shorting some of the ugly long lines in the
driver.
This also fixes a number of checkpatch.pl issues about:
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_660x: cleanup the NI660X_IO_CFG register helpers
Convert the inline functions used to set the bits in the NI600X_IO_CFG
registers into macros. Also convert the enum ni_660x_pfi_output_select
into defines. This clarifies the association with the register.
This also fixes a number of checkpatch.pl issues about:
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All the registers are defined struct NI_660xRegisterData and they are
either 2 or 4 bytes in size. Remove the enum and just use a char member
to define the size as 2 or 4 bytes.
Simplify the ni_660x_{write,read}_register() functions and remove the
unnecessary BUG() in each.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This member of the struct is not used, and just takes up space. Remove it.
Instead, add the enum ni_660x_register indexes to the table to clarify, and
document, the entries.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_660x: change IOConfigReg() into a macro
The BUG_ON() in this function is unnecessary. The 'pfi_channel' will
always be in range of the subdevice 'n_chan' (NUM_PFI_CHANNELS) which
will return a valid 'reg'.
Convert the inline function into a simple macro.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Leo Kim [Fri, 25 Mar 2016 12:16:56 +0000 (21:16 +0900)]
staging: wilc1000: removes unused local variable
This patch removes unused local variable.
This variable is operation definition that back off from sending packets
for some time.
However, that has been deleted operation code.
That is removes all relative code.
Signed-off-by: Leo Kim <leo.kim@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Leo Kim [Fri, 25 Mar 2016 12:16:53 +0000 (21:16 +0900)]
staging: wilc1000: replaces memcmp with ether_addr_equal_unaligned
This patch replaces memcmp with ether_addr_equal_unaligned.
Warning reported by checkpatch.pl
- Prefer ether_addr_equal() or ether_addr_equal_unaligned() over memcmp()
Signed-off-by: Leo Kim <leo.kim@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chaehyun Lim [Wed, 23 Mar 2016 12:28:34 +0000 (21:28 +0900)]
staging: wilc1000: use completion instead of struct semaphore hif_sema_driver
struct semaphore hif_sema_driver is used to signal completion of host
interface message. This patch replaces struct semaphore hif_sema_driver
with struct completion hif_driver_comp. It is better to use completion
than semaphore for this case.
Chaehyun Lim [Wed, 23 Mar 2016 12:28:33 +0000 (21:28 +0900)]
staging: wilc1000: use completion instead of struct semaphore hif_sema_thread
struct semaphore hif_sema_thread is used to signal completion of host
interface thread. This patch replaces struct semaphore hif_sema_thread
with struct completion hif_thread_comp. It is better to use completion
than semaphore for this case.
Alexander Curtin [Thu, 24 Mar 2016 02:15:53 +0000 (22:15 -0400)]
staging: unisys: include: changed 'v' variable to 'state'
The argument for ULTRA_CHANNELCLI_STRING is supposed to be
an integer representing the channel state. 'state' is a more
descriptive variable name for this.
Signed-off-by: Alexander Curtin <alexander.curtin@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Curtin [Thu, 24 Mar 2016 02:15:52 +0000 (22:15 -0400)]
staging: unisys: visorbus: replaced use of vague 'x' variable
In client_bus_info_show, the variable 'x' is used to create keep track
of the offset that the current 'pos' in the output buffer needs to be
incremented by. Since 'off' is already taken 'shift' was used since it's
used to shift the pointer.
Signed-off-by: Alexander Curtin <alexander.curtin@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Curtin [Thu, 24 Mar 2016 02:15:51 +0000 (22:15 -0400)]
staging: unisys: visorbus: replaced vague 'p' variable with 'pos'
In the case of client_bus_info_show, the variable 'p' was used to
indicate the position in the output buffer. This was changed to 'pos' to
indicate that it kept track of the current position in the output
buffer.
Signed-off-by: Alexander Curtin <alexander.curtin@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Curtin [Thu, 24 Mar 2016 02:15:50 +0000 (22:15 -0400)]
staging: unisys: visorbus: replaced vague variable name in zoneguid_show
The variable name "s" doesn't indicate the purpose of the string, which
is to store the id collected from the visorchannel_zoneid function. This
just replaces the name with "zoneid".
Signed-off-by: Alexander Curtin <alexander.curtin@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Curtin [Thu, 24 Mar 2016 02:15:49 +0000 (22:15 -0400)]
staging: unisys: visorbus: replaced vague variable name in typeguid_show
The variable name "s" doesn't indicate the purpose of the string, which
is to store the id collected from the visorchannel_id function. This
just replaces the name with "typeid".
Signed-off-by: Alexander Curtin <alexander.curtin@unisys.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
James Simmons [Tue, 22 Mar 2016 23:04:11 +0000 (19:04 -0400)]
staging: lustre: libcfs: move function declarations from libcfs_ioctl.h
Move the function declartions that are used only by
kernel space to libcfs.h This makes libcfs_ioctl.h
a offical uapi header now.
Move large inline functions out of libcfs_ioctl.h to
the source file linux-module.c belonging to libcfs.
This code is only used by the core of libcfs and such
inline functions don't belong in a uapi header file.
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245
Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman <bob.glossman@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
James Simmons [Tue, 22 Mar 2016 23:04:10 +0000 (19:04 -0400)]
staging: lustre: libcfs: migrate inline functions to source file
Move large inline functions out of libcfs_ioctl.h to
the source file linux-module.c belonging to libcfs.
This code is only used by the core of libcfs and such
inline functions don't belong in a uapi header file.
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245
Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman <bob.glossman@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
With struct libcfs_device_userstate gone we can remove
the remaining code of libcfs_psdev_ops.p_[open|close]
as well as the libcfs_psdev_[open|release] functions.
Signed-off-by: Parinay Kondekar <parinay.kondekar@seagate.com> Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844
Reviewed-on: http://review.whamcloud.com/17492 Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Parinay Kondekar [Tue, 22 Mar 2016 23:04:04 +0000 (19:04 -0400)]
staging:lustre: remove last bits of the IOC_LIBCFS_PANIC ioctl
A few pieces still exist for the IOC_LIBCFS_PANIC ioctl. Remove
these last bits to prevent old tools from using them. The latest
lustre utilities no longer use this ioctl.
Signed-off-by: Parinay Kondekar <parinay.kondekar@seagate.com> Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844
Reviewed-on: http://review.whamcloud.com/17492 Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
John L. Hammond [Tue, 22 Mar 2016 23:04:02 +0000 (19:04 -0400)]
staging: lustre: libcfs: move libcfs_ioctl_handler stuff to libcfs.h
Move all the libcfs_ioctl_handler code from libcfs_ioctl.h to
libcfs.h. The header libcfs_ioctl.h is a uapi header so their
is no reason to keep kernel internals in that header.
Signed-off-by: John L. Hammond <john.hammond@intel.com> Signed-off-by: James Simmons <uja.ornl@gmail.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245
Reviewed-on: http://review.whamcloud.com/14180 Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by: frank zago <fzago@cray.com> Reviewed-by: James Simmons <uja.ornl@yahoo.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Liang Zhen [Tue, 22 Mar 2016 23:03:51 +0000 (19:03 -0400)]
staging: lustre: libcfs: merge libcfs_ioctl_handle into libcfs_ioctl
This is apart of the cleanup of libcfs_ioctl* code. In this
part we turn libcfs_ioctl_handle into libcfs_ioctl since
libcfs_ioctl is now a skeleton function.
Liang Zhen [Tue, 22 Mar 2016 23:03:50 +0000 (19:03 -0400)]
staging: lustre: libcfs: merge code from libcfs_ioctl into libcfs_ioctl_getdata
This is apart of the cleanup of libcfs_ioctl* code. In this
part some of the code in libcfs_ioctl is migrated into
libcfs_ioctl_getdata_len() which is renamed libcfs_ioctl_getdata()
Liang Zhen [Tue, 22 Mar 2016 23:03:48 +0000 (19:03 -0400)]
staging: lustre: libcfs: replace LNET_MAX_IOCTL_BUF_LEN with something bigger
The size of LNET_MAX_IOCTL_BUF_LEN restricts the size of
libcfs ioctl to the maximum needs of the LNet layer. Since
libcfs also handles things like debugging we might need
to let user land pass more data to or from the kernel than
what is possible
Commit 4671a0266 change the parameter of the second parameter of
cfs_precpt_alloc() from a sizeof type to sizeof type *pointer.
This was incorrect in this case and it caused a crash when the LNet
layer was brought up in my testing. The reason is cfs_precpt_alloc()
creates an array of items where the arrays size is equal to the
number of CPTs that exist. Changing to type *pointer only had
cfs_precpt_alloc() create an array of pointers instead of an array
of actual data structures. This patch reverse this change and adds
comments to explain what cfs_precpt_alloc() is actually doing to
avoid potential issues like this again.
Changelog:
v1) Simple revert of the original patch
v2) Added in comments to explain why cfs_precpt_alloc() has the
arguments it uses.
staging: media: omap1: Replace request_irq with devm_request_irq
Replace request_irq with devm_request_irq to get the interrupt
for device which is automatically freed on exit. Remove
corresponding free_irq from probe and remove functions of a
platform device.
staging: media: omap1: Switch to devm_ioremap_resource
Replace calls to request_mem_region and ioremap with a direct
call to devm_ioremap_resource instead and modify error
handling.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more
clear.
Also remove unnecessary labels, variable initialisations and
release_mem_region iounmap from probe and remove functions.
staging: media: omap1: Replace clk_get with devm_clk_get
devm_clk_get allocated resources get released when a driver detaches.
Replace clk_get with devm_clk_get and remove corresponding data
releasing function clk_put from probe and remove functions of a
platform device. Also remove an unnecessary label.
This change was made with the help of the following Coccinelle
semantic patch:
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
.probe = probefn,
.remove = removefn,
};
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