History log of /drivers/uwb/rsv.c
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475c0a6b2cff037ca522d3aff839024ab30ed7eb 10-Jul-2011 Paul Gortmaker <paul.gortmaker@windriver.com> uwb: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required

These macros are no longer in module.h and module.h is no longer
present everywhere. Call out export.h for the real users who
are making use of these macros, or else we'll get things like:

CC drivers/uwb/umc-drv.o
drivers/uwb/umc-dev.c:42: warning: data definition has no type or storage class
drivers/uwb/umc-dev.c:42: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’
drivers/uwb/umc-dev.c:42: warning: parameter names (without types) in function declaration

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
/drivers/uwb/rsv.c
5a0e3ad6af8660be21ca98a971cd00f331318c05 24-Mar-2010 Tejun Heo <tj@kernel.org> include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.

2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).

* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
/drivers/uwb/rsv.c
8f5140a6a0b1a9aa79585b0008e88c5d266c5c1d 23-Jan-2009 David Vrabel <david.vrabel@csr.com> uwb: lock rc->rsvs_lock with spin_lock_bh()

rc->rsvs_lock may be taken in a timer so lock it with spin_lock_bh().

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
2226b1c219a18804bc40e32a5d53c287a6c925d9 06-Jan-2009 David Vrabel <david.vrabel@csr.com> uwb: safely remove all reservations

When removing all reservations during shutdown, terminate them first and
then wait for any pending timeout work to complete. This prevents the
timeout work from running after the reservation has been freed.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
671e470ed04865ca148b83f46319d14547481340 12-Dec-2008 David Vrabel <david.vrabel@csr.com> uwb: fix oops when terminating an already terminated reservation

Calling uwb_rsv_terminate() on a reservation already in UWB_RSV_STATE_NONE
should do nothing.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
5b37717a23b8e40f6cf7ad85a26ddcf41c171e2c 12-Dec-2008 Stefano Panella <stefano.panella@csr.com> uwb: improved MAS allocator and reservation conflict handling

Greatly enhance the MAS allocator:
- Handle row and column reservations.
- Permit all the available MAS to be allocated.
- Follows the WiMedia rules on MAS selection.

Take appropriate action when reservation conflicts are detected.
- Correctly identify which reservation wins the conflict.
- Protect alien BP reservations.
- If an owned reservation loses, resize/move it.
- Follow the backoff procedure before requesting additional MAS.

When reservations are terminated, move the remaining reservations (if
necessary) so they keep following the MAS allocation rules.

Signed-off-by: Stefano Panella <stefano.panella@csr.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
6fae35f9cea92793a98b2d9ab21235e5ae035581 17-Nov-2008 David Vrabel <david.vrabel@csr.com> uwb: add basic radio manager

The UWB radio manager coordinates the use of the radio between the
PALs that may be using it. PALs request use of the radio with
uwb_radio_start() and the radio manager will start beaconing if its
not already doing so. When the last PAL has called uwb_radio_stop()
beaconing will be stopped.

In the future, the radio manager will have a more sophisticated channel
selection algorithm, probably following the Channel Selection Policy
from the WiMedia Alliance when it is finalized. For now, channel 9
(BG1, TFC1) is selected.

The user may override the channel selected by the radio manager and may
force the radio to stop beaconing.

The WUSB Host Controller PAL makes use of this and there are two new
debug PAL commands that can be used for testing.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
e17be2b2a95b43fe0d5878adf330701bb7a77115 17-Nov-2008 David Vrabel <david.vrabel@csr.com> uwb: add pal parameter to new reservation callback

The pal parameter allows PALs to retrieve their PAL-specific data
structure.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
307ba6dd73254fe7d2ce27db64ffd90e1bb3c6c0 07-Nov-2008 David Vrabel <david.vrabel@csr.com> uwb: don't unbind the radio controller driver when resetting

Use pre_reset and post_reset methods to avoid unbinding the radio
controller driver after a uwb_rc_reset_all() call. This avoids a
deadlock in uwb_rc_rm() when waiting for the uwb event thread to stop.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
7bc914942295b1ea63635b9c1e93b023bd7d3767 31-Oct-2008 Huang Weiyi <weiyi.huang@gmail.com> uwb: remove unused #include <version.h>

The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
drivers/uwb/drp-ie.c
drivers/uwb/hwa-rc.c
drivers/uwb/i1480/dfu/usb.c
drivers/uwb/i1480/i1480u-wlp/lc.c
drivers/uwb/i1480/i1480u-wlp/sysfs.c
drivers/uwb/rsv.c
drivers/uwb/whc-rc.c

This patch removes the said #include <version.h>.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
cae1c11414912bf77a62aebd65ced321f0b9da51 27-Oct-2008 David Vrabel <david.vrabel@csr.com> uwb: reference count reservations

Reference counting the struct uwb_rsv's is safer and easier to get right than
the transferring ownership of the structures from the PAL to reservation
manager.

This fixes an oops in the debug PAL after a reservation timed out.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
6a4b58707903cb0901966ac8dad5d6ec7f2d432f 27-Oct-2008 David Vrabel <david.vrabel@csr.com> uwb: target reservations shouldn't get streams

The reservation owner should decide the stream index to use based on
what reservations it's created.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c
8cc13a09474bb30d15dbf449767bb6d0198a8bf8 17-Sep-2008 David Vrabel <david.vrabel@csr.com> uwb: add the UWB stack (reservation manager)

DRP and reservation management.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
/drivers/uwb/rsv.c