staging: comedi: ni_daq_dio24: convert to auto attach
Convert this pcmcia driver to the comedi auto attach mechanism.
This allows getting rid of the "hack" needed to pass the pcmcia_device
pointer from the pcmcia_driver to the comedi_driver as well as the
now unnecessary boardinfo.
Check the call to subdev_8255_init() for success. That function does
a kzalloc and could return -ENOMEM.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify the call to subdev_8255_cleanup() to remove the
need for a local variable.
This driver only attaches to pcmcia devices so the test for
thisboard != pcmcia_bustype will always fail. Remove the test
and the unreachable release_region().
This driver also never does a request_irq() so remove the
free_irq().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Absorb the code from dio24_config() into the probe function,
dio24_cs_attach() and properly return the error code when the
probe fails. This also gets rid of an unnecessary forward
declaration.
For aesthetic reasons, move the remove functio, dio24_cs_detach(),
so it's after the probe function.
Remove a number of dev_{level} noise messages in the probe/remove
functions.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_daq_dio24: remove 'stop' from private pcmcia data
The pcmcia_driver suspend and remove functions set the 'stop' variable
and the resume function clears it. Nothing in the comedi_driver code
uses the 'stop' variable.
Just remove it so we can get rid of the suspend/resume.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 03:08:46 +0000 (04:08 +0100)]
staging/xgifb: remove unused variables
XGI_P3cc is unused and the assignment without side effects -> remove;
Data can be simply replaced by the Temp variable, which was changed to
temp in order to make checkpatch happy.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 03:08:45 +0000 (04:08 +0100)]
staging/xgifb: Remove redundant if statement
The code checks twice for if (pVBInfo->VBInfo & SetCRT2ToTV) without any
changes in between -> we can remove the second check.
And while at it we can also save the temp variable and use tempbx
directly.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Sun, 3 Feb 2013 03:08:41 +0000 (04:08 +0100)]
staging/xgifb: Remove unused variables and dead assignments
The variables A,HBS and VBS are never read in XGIfb_mode_rate_to_ddata
and the assignment has no side effects -> so we can simply remove them.
Removing them causes VT, HT and cr_data3 to be unused -> remove them as well
and remove the assignmens to cr_data which are shadowed by a different
assignment a few lines later.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/iio/adc/max1363.c:1486:12: warning: 'max1363_register_buffered_funcs_and_init' defined but not used
drivers/iio/adc/max1363.c:1521:13: warning: 'max1363_buffer_cleanup' defined but not used
This patch just removes them again.
Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: conditionally build in PCMCIA driver support
Separate the comedi_pcmcia_* functions out of drivers.c into a new
source file, comedi_pcmcia.c. This allows conditionally building
support for comedi pcmcia drivers into the comedi core without the
need for the #if'defery. Fix the Kconfig and Makefile appropriately.
Group all the comedi_pcmcia_* prototypes into one place in comedidev.h.
Protect these prototypes with an #ifdef so that building a comedi
pcmcia driver without PCMCIA support will cause a build error. This
will normally not happen as long as the comedi pcmcia driver is placed
in the proper group in the Kconfig.
Remove the #include <pcmcia/*.h> from drivers.c. These includes are only
needed by the comedi pcmcia driver support code and the pcmcia drivers.
The include should occur in those files.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: conditionally build in PCI driver support
Separate the comedi_pci_* functions out of drivers.c into a new
source file, comedi_pci.c. This allows conditionally building
support for comedi PCI drivers into the comedi core. Fix the
Kconfig and Makefile appropriately.
Group all the comedi_pci_* prototypes and related defines into one
place in comedidev.h. Protect these prototypes with an #ifdef and
provide some dummy functions so that the mixed ISA/PCI comedi
drivers will still build correctly.
Remove the #include <linux/pci.h> from comedidev.h and drivers.c. This
include is only needed by the comedi PCI driver support code and the
PCI drivers. The include should occur in those files.
Also, remove the #include <linux/pci.h> from a couple non-PCI drivers
since it's not needed.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: conditionally build in USB driver support
Separate the comedi_usb_* functions out of drivers.c into a new
source file, comedi_usb.c. This allows conditionally building
support for comedi USB drivers into the comedi core without the
need for the #if'defery. Fix the Kconfig and Makefile appropriately.
For aesthetic reasons, add some whitespace to the Makefile to keep
everything lined up.
Group all the comedi_usb_* prototypes into one place in comedidev.h.
Protect these prototypes with an #ifdef so that building a comedi
usb driver without USB support will cause a build error. This will
normally not happen as long as the comedi USB driver is placed in
the proper group in the Kconfig.
Remove the #include<linux/usb.h> from comedidev.h and drivers.c. This
include is only needed by the comedi USB driver support code and the
USB drivers. The include should occur in those files.
Removing the include of usb.h exposed a couple drivers that need
<linux/interrupt.h> and <linux/sched.h>. Add the missing includes.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ISA DMA drivers should depend on ISA_DMA_API
m68k allmodconfig:
CC [M] drivers/staging/comedi/drivers/pcl812.o
drivers/staging/comedi/drivers/pcl812.c: In function ‘pcl812_ai_cmd’:
drivers/staging/comedi/drivers/pcl812.c:736: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/pcl812.c:736: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl812.c:736: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/pcl812.c:736: error: for each function it appears in.)
drivers/staging/comedi/drivers/pcl812.c:737: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/pcl812.c:738: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/pcl812.c:739: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/pcl812.c:740: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/pcl812.c:741: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/pcl812.c:742: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/pcl812.c: In function ‘interrupt_pcl812_ai_dma’:
drivers/staging/comedi/drivers/pcl812.c:883: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/pcl812.c:884: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl812.c: In function ‘pcl812_ai_poll’:
drivers/staging/comedi/drivers/pcl812.c:947: error: implicit declaration of function ‘get_dma_residue’
make[2]: *** [drivers/staging/comedi/drivers/pcl812.o] Error 1
CC [M] drivers/staging/comedi/drivers/pcl816.o
drivers/staging/comedi/drivers/pcl816.c: In function ‘interrupt_pcl816_ai_mode13_dma’:
drivers/staging/comedi/drivers/pcl816.c:359: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/pcl816.c:366: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/pcl816.c:366: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl816.c:366: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/pcl816.c:366: error: for each function it appears in.)
drivers/staging/comedi/drivers/pcl816.c:367: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/pcl816.c:369: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/pcl816.c:372: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/pcl816.c:378: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/pcl816.c:379: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/pcl816.c: In function ‘pcl816_ai_cmd’:
drivers/staging/comedi/drivers/pcl816.c:629: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl816.c:631: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/pcl816.c: In function ‘pcl816_ai_poll’:
drivers/staging/comedi/drivers/pcl816.c:679: error: implicit declaration of function ‘get_dma_residue’
make[2]: *** [drivers/staging/comedi/drivers/pcl816.o] Error 1
CC [M] drivers/staging/comedi/drivers/pcl818.o
drivers/staging/comedi/drivers/pcl818.c: In function ‘interrupt_pcl818_ai_mode13_dma’:
drivers/staging/comedi/drivers/pcl818.c:547: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/pcl818.c:550: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/pcl818.c:550: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl818.c:550: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/pcl818.c:550: error: for each function it appears in.)
drivers/staging/comedi/drivers/pcl818.c:551: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/pcl818.c:552: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/pcl818.c:555: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/pcl818.c:561: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/pcl818.c:562: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/pcl818.c: In function ‘pcl818_ai_mode13dma_int’:
drivers/staging/comedi/drivers/pcl818.c:886: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl818.c:888: error: implicit declaration of function ‘clear_dma_ff’
make[2]: *** [drivers/staging/comedi/drivers/pcl818.o] Error 1
CC [M] drivers/staging/comedi/drivers/das16.o
drivers/staging/comedi/drivers/das16.c: In function ‘das16_cmd_exec’:
drivers/staging/comedi/drivers/das16.c:644: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/das16.c:645: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/das16.c:648: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/das16.c:650: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/das16.c:654: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/das16.c:655: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/das16.c:656: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/das16.c: In function ‘disable_dma_on_even’:
drivers/staging/comedi/drivers/das16.c:845: error: implicit declaration of function ‘get_dma_residue’
drivers/staging/comedi/drivers/das16.c: In function ‘das16_attach’:
drivers/staging/comedi/drivers/das16.c:1197: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/das16.c:1197: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/das16.c:1197: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/das16.c:1197: error: for each function it appears in.)
make[2]: *** [drivers/staging/comedi/drivers/das16.o] Error 1
CC [M] drivers/staging/comedi/drivers/das1800.o
drivers/staging/comedi/drivers/das1800.c: In function ‘das1800_flush_dma_channel’:
drivers/staging/comedi/drivers/das1800.c:555: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/das1800.c:559: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/das1800.c:562: error: implicit declaration of function ‘get_dma_residue’
drivers/staging/comedi/drivers/das1800.c: In function ‘das1800_flush_dma’:
drivers/staging/comedi/drivers/das1800.c:586: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/das1800.c:603: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/das1800.c: In function ‘das1800_handle_dma’:
drivers/staging/comedi/drivers/das1800.c:622: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/das1800.c:624: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/das1800.c:625: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/das1800.c: In function ‘das1800_init_dma’:
drivers/staging/comedi/drivers/das1800.c:1424: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/das1800.c:1424: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/das1800.c:1424: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/das1800.c:1424: error: for each function it appears in.)
make[2]: *** [drivers/staging/comedi/drivers/das1800.o] Error 1
CC [M] drivers/staging/comedi/drivers/dt282x.o
drivers/staging/comedi/drivers/dt282x.c: In function ‘dt282x_ao_dma_interrupt’:
drivers/staging/comedi/drivers/dt282x.c:328: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/dt282x.c: In function ‘prep_ai_dma’:
drivers/staging/comedi/drivers/dt282x.c:416: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/dt282x.c:416: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/dt282x.c:416: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/dt282x.c:416: error: for each function it appears in.)
drivers/staging/comedi/drivers/dt282x.c:417: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/dt282x.c:418: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/dt282x.c:419: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/dt282x.c:420: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/dt282x.c:421: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/dt282x.c:423: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/dt282x.c: In function ‘prep_ao_dma’:
drivers/staging/comedi/drivers/dt282x.c:439: error: ‘DMA_MODE_WRITE’ undeclared (first use in this function)
drivers/staging/comedi/drivers/dt282x.c: In function ‘dt282x_interrupt’:
drivers/staging/comedi/drivers/dt282x.c:471: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/dt282x.c: In function ‘dt282x_ai_cmd’:
drivers/staging/comedi/drivers/dt282x.c:690: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/dt282x.c: In function ‘dt282x_ao_cmd’:
drivers/staging/comedi/drivers/dt282x.c:938: error: ‘DMA_MODE_WRITE’ undeclared (first use in this function)
make[2]: *** [drivers/staging/comedi/drivers/dt282x.o] Error 1
CC [M] drivers/staging/comedi/drivers/ni_at_a2150.o
drivers/staging/comedi/drivers/ni_at_a2150.c: In function ‘a2150_interrupt’:
drivers/staging/comedi/drivers/ni_at_a2150.c:237: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/ni_at_a2150.c:238: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/ni_at_a2150.c:241: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/ni_at_a2150.c:249: error: implicit declaration of function ‘get_dma_residue’
drivers/staging/comedi/drivers/ni_at_a2150.c:286: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/ni_at_a2150.c:287: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/ni_at_a2150.c:288: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/ni_at_a2150.c:290: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/ni_at_a2150.c: In function ‘a2150_attach’:
drivers/staging/comedi/drivers/ni_at_a2150.c:794: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/ni_at_a2150.c:794: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/ni_at_a2150.c:794: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/ni_at_a2150.c:794: error: for each function it appears in.)
make[2]: *** [drivers/staging/comedi/drivers/ni_at_a2150.o] Error 1
Make PCL816, PCL818, DAS16, DAS1800, DT282X, and NI_AT_A2150 depend on
ISA_DMA_API to fix this.
Ian Abbott [Mon, 28 Jan 2013 17:07:39 +0000 (17:07 +0000)]
staging: comedi: cleanup all board minors on module exit
The comedi core module optionally allocates some legacy board minor
devices on module load and cleans these up on module exit. These are
used for manual configuration of comedi boards (for those low-level
comedi drivers that support manual configuration - mainly for ISA
boards). Other board minor devices are created and destroyed
dynamically in response to bus device probe and remove requests. The
ioctl used for manual configuration (attachment) and removal
(detachment) of devices is COMEDI_DEVCONFIG, but that works for any
board minor device, including those that were originally created
dynamically.
If the COMEDI_DEVCONFIG ioctl is used to manually detach an
automatically created and attached device, commit 7d3135af399e92cf4c9bbc5f86b6c140aab3b88c ("staging: comedi: prevent
auto-unconfig of manually configured devices") ensures that the board
minor will no longer be automatically detached and destroyed by a bus
device remove request. From that point on the board minor behaves more
like one of the comedi "legacy" board minors. (There would be some
justification for destroying the board minor instead, but I'd rather
leave that decision until removal of board minors has been
made safer than it currently is.) Although the board minor behaves more
like a legacy board minor, it is not currently cleaned up on module
exit. In fact, the module exit code will bug out because this board
minor has not been cleaned up.
Change comedi_cleanup_legacy_minors() (called from the module exit code,
and from the module init code on error) to clean up all board minors.
Rename the function to comedi_cleanup_board_minors() to reflect the
change in functionality.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Mon, 28 Jan 2013 16:14:31 +0000 (16:14 +0000)]
staging: comedi: disallow COMEDI_DEVCONFIG on non-board minors
Comedi has two sorts of minor devices:
(a) normal board minor devices in the range 0 to
COMEDI_NUM_BOARD_MINORS-1 inclusive; and
(b) special subdevice minor devices in the range COMEDI_NUM_BOARD_MINORS
upwards that are used to open the same underlying comedi device as the
normal board minor devices, but with non-default read and write
subdevices for asynchronous commands.
The special subdevice minor devices get created when a board supporting
asynchronous commands is attached to a normal board minor device, and
destroyed when the board is detached from the normal board minor device.
One way to attach or detach a board is by using the COMEDI_DEVCONFIG
ioctl. This should only be used on normal board minors as the special
subdevice minors are too ephemeral. In particular, the change
introduced in commit 7d3135af399e92cf4c9bbc5f86b6c140aab3b88c ("staging:
comedi: prevent auto-unconfig of manually configured devices") breaks
horribly for special subdevice minor devices.
Since there's no legitimate use for the COMEDI_DEVCONFIG ioctl on a
special subdevice minor device node, disallow it and return -ENOTTY.
Peter Hurley [Tue, 29 Jan 2013 03:34:38 +0000 (22:34 -0500)]
staging/fwserial: Create loop device the 'tty' way
Register a second tty driver to create loopback devices for
each firewire node. Note that the loopback devices are numbered
from 0; the tty->index is transformed when used to index the
port table.
Remove the hack that previously enabled this.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Tue, 29 Jan 2013 03:34:35 +0000 (22:34 -0500)]
staging/fwserial: Only reset port status for attached peers
When a port has been reserved in an attempt to connect to a peer
but that attempt does not succeed, releasing the port should not
reset the port line status. Although resetting is functionally
harmless, it can appear as if a remote peer dropped carrier to a
port it was not attached to (which can be confusing).
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Tue, 29 Jan 2013 01:57:48 +0000 (20:57 -0500)]
staging/fwserial: Assume firmware is OHCI-complaint
Devices which are OHCI v1.0/ v1.1/ v1.2-draft compliant or
RFC 2734 compliant are required by specification to support
max_rec of 8 (512 bytes) or more. Accept reported value.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Tue, 29 Jan 2013 01:57:44 +0000 (20:57 -0500)]
staging/fwserial: Remove bandwidth limit logic
Self-limiting asynchronous bandwidth (via reducing the payload)
is not necessary and does not work, because
1) asynchronous traffic will absorb all available bandwidth (less that
being used for isochronous traffic)
2) isochronous arbitration always wins.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rupesh Gujare [Tue, 29 Jan 2013 17:00:55 +0000 (17:00 +0000)]
staging:ozwpan: Fix following warning.
The patch ae926051d7eb: "staging: ozwpan: Added USB HCD
implementation" from Feb 20, 2012, leads to the following warning:
drivers/staging/ozwpan/ozhcd.c:1094 oz_hcd_heartbeat()
warn: what is this condition about? 'ep->buffered_units * 50'
Minchan Kim [Mon, 28 Jan 2013 01:00:08 +0000 (10:00 +0900)]
staging: zsmalloc: Fix TLB coherency and build problem
Recently, Matt Sealey reported he fail to build zsmalloc caused by
using of local_flush_tlb_kernel_range which are architecture dependent
function so !CONFIG_SMP in ARM couldn't implement it so it ends up
build error following as.
The reason we used that function is copy method by [1]
was really slow in ARM but at that time.
More severe problem is ARM can prefetch speculatively on other CPUs
so under us, other TLBs can have an entry only if we do flush local
CPU. Russell King pointed that. Thanks!
We don't have many choices except using flush_tlb_kernel_range.
My experiment in ARMv7 processor 4 core didn't make any difference with
zsmapbench[2] between local_flush_tlb_kernel_range and flush_tlb_kernel_range
but still page-table based is much better than copy-based.
This patch replace local_flush_tlb_kernel_range with
flush_tlb_kernel_range which are avaialbe in all architectures
because we already have used it in vmalloc allocator which are
generic one so build problem should go away and performane loss
shoud be void.
Seth Jennings [Fri, 25 Jan 2013 17:46:18 +0000 (11:46 -0600)]
staging: zsmalloc: make CLASS_DELTA relative to PAGE_SIZE
Right now ZS_SIZE_CLASS_DELTA is hardcoded to be 16. This
creates 254 classes for systems with 4k pages. However, on
PPC64 with 64k pages, it creates 4095 classes which is far
too many.
This patch makes ZS_SIZE_CLASS_DELTA relative to PAGE_SIZE
so that regardless of the page size, there will be the same
number of classes.
Acked-by: Nitin Gupta <ngupta@vflare.org> Acked-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Mon, 28 Jan 2013 23:36:39 +0000 (00:36 +0100)]
staging/comedi/adl_pci8164: Don't assign string
Assigning a string is really bad,
and since we only have 1 char strings here we
can simply use a char to store the value and change the format specifier.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Tue, 29 Jan 2013 16:20:17 +0000 (16:20 +0000)]
staging: comedi: simplify comedi_set_hw_dev()
Since `get_device()` and `put_device()` can take a NULL device
parameter, `comedi_set_hw_dev()` can be simplified to always call
`get_device()` for the new, possibly NULL hardware device, and
`put_device()` for the old, possibly NULL hardware device. As long as
we do it in that order, there shouldn't be any problem with
`kref_release()` getting called unexpectedly when the new hardware
device is the old hardware device.
Simplify `comedi_set_hw_dev()` and update the comment because the
function is used for additional purposes since the old comment was
written.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Tue, 29 Jan 2013 14:05:58 +0000 (14:05 +0000)]
staging: comedi: don't override read/write subdevice if not supported
For comedi devices that support asynchronous commands on some of their
subdevices, the comedi core creates extra device files for each of those
subdevices of the form "/dev/comedi%i_subd%i". These use the same
comedi device as the corresponding "/dev/comedi%i" but override the
default "read" and "write" subdevice for the device. Currently it
overrides both the read and write subdevice, but it only makes sense to
override the "read" subdevice if the subdevice supports "read" commands,
and to override the "write" subdevice if the subdevice supports "write"
commands.
In `comedi_alloc_subdevice_minor()`, only set `info->read_subdevice`
non-NULL if the subdevice has the `SDF_CMD_READ` flag set, and only set
`info->write_subdevice` non-NULL if the subdevice has the
`SDF_CMD_WRITE` flag set. (`comedi_read_subdevice(info)` will use the
device's default read subdevice if `info->read_subdevice` is NULL.
`comedi_write_subdevice(info)` will use the device's default write
subdevice if `info->write_subdevice` is NULL.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_labpc_cs: cleanup the boardinfo declaration
For aesthetic reasons, reformat the boardinfo declaration and
add some whitespace. Remove all the information that is set to
'0' as this is the default.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetic reasons, move all the pcmcia_driver functions so they
are near the pcmcia_driver declaration. This also removes the need
for some of the forward declarations.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_labpc_cs: remove 'stop' from private pcmcia data
The pcmcia_driver suspend and remove functions set the 'stop' variable
and the resume function clears it. Nothing in the comedi_driver code
uses the 'stop' variable.
Just remove it so we can get rid of the suspend/resume.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: ni_mio_cs: cleanup the boardinfo declaration
For aesthetic reasons, reformat the boardinfo declaration and
add some whitespace. Remove all the information that is set to
'0' as this is the default.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the DPRINTK() function trace message as well as the #if 0'ed
out debug code that dumps the board "fingerprint".
Remove the need for the local variable that holds the link->irq
passed to request_irq(). Also, return the error code from that
function instead of assuming -EINVAL. Use the dev->board_name for
the resource string passed to request_irq() instead of the open
coded string "ni_mio_cs".
For aesthetic reasons, add some whitespace to the initializatio
of the devpriv values.
Just return the result of ni_E_init() instead of checking it for
an error, returning the error, or returning "0".
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetic reasons, move all the pcmcia_driver functions so they
are near the pcmcia_driver declaration. This also removes the need
for a couple forward declarations.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetic reasons, add some whitespace to the subdevice init.
Remove the init of the s->len_chanlist for the subdevices that do
not support commands. It's not used by them and the comedi core
will handle initializing it properly in the postconfig.
Change the return after a successful attach to "0". The comedi
core expects a < 0 value to indicate an error and "0" is the
typical value returned to indicate success.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>