set_primary_if is currently misused to update the mac address in vis
packets. This unneeded and introduces overhead due to other operations
which must be done when updating the primary interface.
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
set_primary_if exchanges the current primary interfaces with a new one.
This is a new reference and thus we have to count it and decrease the
count of the old primary interface.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The return of get_batman_if_by_netdev and get_active_batman_if leaks a
pointer from the rcu protected list of interfaces. We must protect it to
prevent a too early release of the memory. Those functions must increase
the reference counter before rcu_read_unlock or it may be to late to
prevent a free.
hardif_add_interface must also increase the reference count for the
returned batman_if to make the behaviour consistent.
Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
get_batman_if_by_netdev and get_active_batman_if may leak data from the
rcu protected list of interfaces. The rcu protected list of all gateway
nodes leaks the actual data outside the read-side critical area. This is
not valid as we may free the data using a call_rcu created callback
after we unlock using rcu_read_unlock. A workaround is to provide a
reference count to be sure that the memory isn't freed to early.
It is currently only to implement the already existing functionality and
doesn't provide the full tracking of all usage cases.
Additionally, we must hardif_hold inside the
rcu_read_lock()..rcu_read_unlock() before we attach to the structure
which "leaks" it. When another function now removed it from its usage
context (primary_if, usage on stack, ...) then we must hardif_put it. If
it is decremented to zero then we can issue the call_rcu to the freeing
function. So "put" is not allowed inside an rcu_read_lock.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It is recommended [1] to use synchronize_rcu to simplify the code -
especially when otherwise extra locking is needed to protect other code
from picking stale elements. It also protects us for emitting to many
callbacks which may results in OOM conditions.
The only reason not to use it, would be in performance critical sections
or when we are not allowed to block.
[1] Documentation/RCU/checklist.txt
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Regions which do not use rcu functions don't need to protected by
rcu_read_lock. If we want to protect data from being freed than it must
be covered by the same read-side critical section or otherwise the grace
period may already ended and freed the memory before we called
rcu_read_lock again.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
receive_bat_packet is not called with rcu_read_lock so we must ensure by
ourself that we protect list_for_each_entry_rcu using the correct RCU
locks.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The update critical sections of if_list must be protected by a locking
primitive other than RCU. The iterator must also be protected by the
chosen locking mechanism.
The rtnl_lock in hardif_remove_interfaces must also be moved outside the
iterator primitive to ensure that we don't deadlock the kernel due to
differently nested locks in hardif_remove_interfaces and hard_if_event.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
synchronize_rcu respective synchronize_net only waits for the rcu grace
period to elapse and we may fail to finish the calls which were made to
call_rcu in that time. In result the module could be unloaded during the
execution of the RCU callbacks.
rcu_barrier[1] will now wait for all outstanding RCU callbacks to finish
before continuing.
[1] Documentation/RCU/rcubarrier.txt
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We don't allow to seek in the debugfs socket and log files. Thus we
should mark the file descriptor as nonseekable.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The official mailing list is run on lists.open-mesh.org and it should be
avoided to sent them to lists.open-mesh.net to reduce the number of
receipents and double posts.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
checkpatch now detects the start of a comment and warns about usage of
multiple spaces at the beginning of a line. We have to replace the ' '
in multiple lines comments by ' * ' to fix it.
Checkpatch also wants a comment after a definition of a spinlock_t which
describes what it protects. It is currently not possible to add it
before the actual struct which includes the spinlock.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Platform devices tend to have id as -1 when only 1 device exist and
a value >=0 when multiple devices exist, since we plan to store all
these platform devices if multiple exist, there was a requirement to
have id to be >=0.
The patch fixes this problem.
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
keucr lost the disconnect,
so keucr crash when plug-in and then plug-out SD-card quickly.
unmark the part of usb disconnect
Signed-off-by: Al Cho <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fixed the last 5 lines, indented with spaces, replacing spaces with tabs.
Signed-off-by: Clelia V. Korol <cvkorol@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I remove parenthesis for a return variable, and also delete a space and tab the code line
Signed-off-by: matias <munozmatiasn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Added an space after the definition of the variable MSG_LEVEL_INFO on line 43
Signed-off-by: Emanuel Mariano Ravera <ravera.emanuel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Removed not required parentheses in return statements.
Signed-off-by: Diego H. Iglesias <diegohi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ai_count and ao_counter are unsigned, check for < 0 doesn't make sense.
Cast them to int.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
chd_dec_major is unsigned, so check chd_dec_major < 0 doesn't make sense.
Since it is used as signed, declare it as int.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
video_nr is unsigned, so check video_nr >= 0 doesn't make sense.
The only "negative" value may be -1, so explicitly check for it.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Handle build case of CONFIG_PM not being enabled.
drivers/staging/bcm/InterfaceInit.c:280: error: 'struct usb_device' has no member named 'autosuspend_delay'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix lots of printk format warnings in bcm. Here is a sample of them:
drivers/staging/bcm/CmHost.c:1955: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'long unsigned int'
drivers/staging/bcm/CmHost.c:1955: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'long unsigned int'
drivers/staging/bcm/CmHost.c:1955: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'long unsigned int'
drivers/staging/bcm/LeakyBucket.c:85: warning: format '%d' expects type 'int', but argument 4 has type 'long int'
drivers/staging/bcm/LeakyBucket.c:85: warning: format '%d' expects type 'int', but argument 3 has type 'long int'
drivers/staging/bcm/LeakyBucket.c:85: warning: format '%d' expects type 'int', but argument 4 has type 'long int'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
keucr driver has a build error when CONFIG_PM is not enabled, so fix that.
drivers/staging/keucr/usb.c:42: error: 'struct us_data' has no member named 'suspend_resume_hook'
drivers/staging/keucr/usb.c:43: error: 'struct us_data' has no member named 'suspend_resume_hook'
drivers/staging/keucr/usb.c:64: error: 'struct us_data' has no member named 'suspend_resume_hook'
drivers/staging/keucr/usb.c:65: error: 'struct us_data' has no member named 'suspend_resume_hook'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Al Cho <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Update keucr TODO with additional work items.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Al Cho <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There are many locations where MAC or BSSID is printed. The plain format
is used in such places. *printf() in kernel recognizes
%pM, %pMF and %pm format parameters to print out 6-byte array as MAC
address. This patch changes plain format to custom %pM which is widely
used in kernel.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch includes changing some defines, necessary for compilation
with the linux-next tree.
Signed-off-by: David Cross <david.cross@cypress.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch remove file system specific (fat_get_block) and vfs calls
from the cyasgadget driver. The current implementation expects user
space to write the file (open, seek to end, 1 byte write), followed by a
call to clear the dirty pages from the the page cache.
Signed-off-by: David Cross <david.cross@cypress.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch contains an update for cyasblkdev_queue.c which is needed for
the kernel update from 2.6.35 to 2.6.36.
Signed-off-by: David Cross <david.cross@cypress.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes the currently broken Kconfig for west bridge by
introducing a dependency on a valid HAL Layer for the driver build.
Signed-off-by: David Cross <david.cross@cypress.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch that fixes up, macros with multiple statements should be enclosed in a do - while loop, coding style issue in the adl_pci9111.c file found by the checkpatch.pl tool
Signed-off-by: Maurice Dawson <mauricedawson2699@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
kmalloc() may fail, if so drop current packet.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
[sven.eckelmann@gmx.de: Removed new introduced deadlock]
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Paul E. McKenney informed us that rcu is misused by leaking pointers to
rcu related elements outside read-side protected critical sections.
He also recommended that it should be checked against the rcu checklist.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
gw_list_lock, gw_list and curr_gw are currently unused members of struct
bat_priv. They will be readded when gateway support is really
implemented.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
During the module shutdown procedure in batman_exit(), a rcu callback is
being scheduled (batman_exit -> hardif_remove_interfaces ->
hardif_remove_interfae -> call_rcu). However, when the kernel unloads
the module, the rcu callback might not have been executed yet, resulting
in a "unable to handle kernel paging request" in __rcu_process_callback
afterwards, causing the kernel to freeze.
The synchronize_net and synchronize_rcu in mesh_free are currently
called before the call_rcu in hardif_remove_interface and have no real
effect on it.
Therefore, we should always flush all rcu callback functions scheduled
during the shutdown procedure using synchronize_net. The call to
synchronize_rcu can be omitted because synchronize_net already calls it.
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is for the Asahi Kasei AK8975 3-axis magnetometer. It resides within
the magnetometer section of the IIO subsystem, and implements the raw
magn_x,y,z_raw attributes, as well as magn_x,y,z_scale attributes for
converting to Gauss.
Changed to use the magn_x,y,z_scale attributes, and made those attributes
give the scale factor to conert to Gauss. Also applied more fixes from
feedback.
Keeping mode as an unsigned long. I'm going to add proper power management
at some point anyway, which would deprecate this attribute.
Signed-off-by: Andrew Chew <achew@nvidia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Per email exchange with Jonathan Cameron, GAIN should instead be SCALE, to
be consistent with documentation.
Resending, since this goes with the 2/2 patch.
Signed-off-by: Andrew Chew <achew@nvidia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Convert vmbus driver interface function pointer table to constant
The vmbus interface functions are assigned to a constant - vmbus_ops.
Because the vmbus interface function pointer table is converted to a
constant variable -- vmbus_ops, the function GetChannelInterface(),
VmbusGetChannelInterface() and pointer GetChannelInterface are no longer
in use. The deprecated function's work is done by the initialization of
the newly added constant variable vmbus_ops.
I created the new constant variable vmbus_ops and removed the deprecated
function pointer GetChannelInterface in one patch.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remaining errors are due to the use of typedefs. They should dissappear
once the typedefs get cleaned up.
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes the real errors. The rest are caused by typedefs
which will be fixed in a later patch.
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Initialise wl_info::tasklet early so that it's safe to tasklet_kill()
it in wl_free().
Remove assertions from wl_free() that may not be true in case of
initialisation failure.
Call wl_release_fw() in case of failure after wl_request_fw().
Don't rely on wl_firmware::fw_cnt in wl_release_fw().
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Henry Ptasinski <henryp@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It would be nice if people tested their patches before sending
them to me...
Cc: Henry Ptasinski <henryp@broadcom.com>
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Nohee Ko <noheek@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the adl_pci9111.c file that fixes up multiple please,
no space for starting a line warnings, found by the checkpatch.pl tool
Signed-off-by: Maurice Dawson <mauricedawson2699@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Moving the AR6002 hw 2.0 specific register definitions files from
the hw.0 directory to a new directory, 'hw' within hw2.0.
Signed-off-by: Vipin Mehta <vmehta@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Sprint 4G network uses a Wimax dongle with Beecem
chipset. The driver is typical of out of tree drivers, but
maybe useful for people, and the hardware is readily available.
Here is a staging ready version (i.e warts and all)
0. Started with Rel_5.2.7.3P1_USB from Sprint4GDeveloperPack-1.1
1. Consolidated files in staging
2. Remove Dos cr/lf
3. Remove unnecessary ioctl from usbbcm_fops
Applied patches that were in the developer pack, surprising
there were ones for 2.6.35 already.
This is compile tested only, see TODO for what still needs
to be done.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This resolves a few of the coding style issues in the .h files
for this driver. It doesn't get all of them by far, but it's a
good start.
Cc: Al Cho <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This driver is for the ENE card reader that can be found in many
different laptops. It was written by ENE, but cleaned up to
work properly in the kernel tree by Novell.
Signed-off-by: Al Cho <acho@novell.com>
Cc: <yiyingc@ene.com.tw>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes a compile warning removing an unnecessary log message.
I redo the patch against today linux-next.
Thanks a lot
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes a compilation warning in today linux-next
removing some compilation conditionals.
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There are already implemented methods such hex_to_bin() or isxdigit() in
the kernel. Let's use them.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Vipin Mehta <Vipin.Mehta@Atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri pointed out that the previous compiler warning fix was incorrect as
the compiler was properly saying that the variable was not being set.
This was due to a #define commenting out all of the logic in the
function.
This patch reverts Javier's previous one, and properly fixes the issue
by making the function actually doing something.
Reported-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the wwrap.c file that removes the initialization
of global variable 'smp_kevent_Lock' to 0
Signed-off-by: Prashant P. Shah <pshah.mumbai@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Current patch solves compilation warnings in staging/xgifb for using
possibly uninitialized variables.
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the XGI_main_26 file that fixes many style
issues found by the checkpatch.pl tool.
- extra spaces
- invalid code indent
- extra braces
- invalid comment style
Signed-off-by: Prashant P. Shah <pshah.mumbai@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix fb_defio bug in udlfb for multiple framebuffers
Previously when using fb_defio with multiple DisplayLink attached displays
udlfb incorrectly used a shared datastructure where it needed to have
one per fb_info struct. This was completely broken and caused all kinds of
problems, including rendering to one framebuffer affecting others.
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Kconfig description for CONFIG_SBE_PMCC4_NCOMM says:
If you have purchased this optional support you must say Y or M
here to allow the driver to operate with the NCOMM product.
This is not correct as it can not be built as module,
this patch updates the description accordingly.
Signed-off-by: Michael Prokop <mika@grml.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In each case, the function has an unsigned return type, but returns a
negative constant to indicate an error condition. For move_block_from_dma,
there is only one call and the return value is dropped, so it need not be
unsigned. For labpc_eeprom_write, there is only one call and the result is
stored in a signed variable, so again the unsigned return type is not
necessary.
A sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@exists@
identifier f;
constant C;
@@
unsigned f(...)
{ <+...
* return -C;
...+> }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
kmalloc() may fail, check for it.
Allocated memory is not freed.
Use IS_ERR() instead of strict checking.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Cc: David Cross <david.cross@cypress.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Functions alloc_ieee80211 and register_netdev may fail. Check for it.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add module options for console and fb_defio
Convert fb_defio on/off switch to module option and add console option.
>From the command line, pass options to modprobe
modprobe udlfb defio=1 console=1
Or for permanent option, create file like /etc/modprobe.d/options with text
options udlfb defio=1 console=1
Accepted options:
fb_defio Make use of the fb_defio (CONFIG_FB_DEFERRED_IO) kernel
module to track changed areas of the framebuffer by page faults.
Standard fbdev applications that use mmap but that do not
report damage, may be able to work with this enabled.
Disabled by default because of overhead and other issues.
console Allow fbcon to attach to udlfb provided framebuffers. This
is disabled by default because fbcon will aggressively consume
the first framebuffer it finds, which isn't usually what the
user wants in the case of USB displays.
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Support writing default/backup edid via /sys/class/graphics/fb?/edid
Writing a backup edid blob to the 'edid' file will cause udlfb to
attempt to re-read the edid from hardware.
If we still don't have a good edid, it will use the backup edid instead.
The intent is to 1) enable user-supplied edid
2) enable udev rules to backup the last known good edid
for a device, and then provide that edid as a backup for all future starts
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix big endian rendering bug (affects PowerPC)
Thanks to Christian Melki at Ericsson for finding and suggesting patch.
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Enhance EDID and mode table handling
* Adds support for lower-end DL chips on higher-end monitors
* Adds support for using fbdev standard EDID parsing and handling
* Adds support for more dynamic reallocation of framebuffer, based on new EDID
Queries EDID from hardware with several retries then
queries DisplayLink chip for max pixel area via vendor descriptor.
Uses existing fbdev mode handling service funcations to build mode list
of common modes between adapter and monitor.
This enables lower-end chips (e.g. DL-125) to successfully pick a compatible
mode on higher end monitors (e.g. whose default mode is over 1280x1024).
Reallocate framebuffer if necessary in response to new max mode.
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Revamp reference handling and synchronization for unload/shutdown
Udlfb is a "virtual" framebuffer device that really exists on
two separate stacks: at the bottom of the framebuffer interface,
and on top of USB. During unload, there's no guarantee which
one will tear down first. So reference counting must be solid
to handle all possibilities and not access anything once its gone.
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remove metrics_misc sysfs attribute
Previously returned multiple values, which goes against sysfs guidelines.
Had been used for debugging to figure out which of the multiple
fbdev interfaces an app was using, but log file messages are sufficient.
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add ability to power off monitor with standard blanking interface
Used by X servers and others to manage power of dislpay
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Restore fbdev character read and write support
Enables access to the framebuffer from simple reads and writes
to /dev/fb0 (or fb1, ...). Low performance, because of extra copy
and because udlfb must scan every pixel for changes. But very
useful for testing and simple image display, etc.
Signed-off-by: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We must reduce our own mtu when we reduce the mtu of any device we use
to transfer our packets. Otherwise we may accept to large packets which
gets dropped by the actual device.
Reported-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Information about dropped packets are usually only interesting for
debugging purposes and otherwise open the possibility to flood the logs
of the target machine with useless information.
pr_debug will not output those information on a nodebug kernel.
Reported-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
batman_if has the name of the net_dev as extra string in its own
structure, but also holds a reference to the actual net_device structure
which always has the current name of the device. This makes it
unneccessary and also more complex because we must update the name in
situations when we receive a NETDEV_CHANGENAME event.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes all remaining global variables and includes the
necessary bits into the bat_priv structure. It is the last
remaining piece to allow multiple concurrent mesh clouds on the
same device.
A few global variables have been rendered obsolete during the process
and have been removed entirely.
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
[sven.eckelmann@gmx.de: Rework on top of current version]
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch replaces the static bat0 interface with a dynamic/abstracted
approach. It is now possible to create multiple batX interfaces by
assigning hard interfaces to them. Each batX interface acts as an
independent mesh network. A soft interface is removed once no hard
interface references it any longer.
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
[sven.eckelmann@gmx.de: Rework on top of current version]
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We must ensure that all interesting data is linear and not paged out to
access all information in a header or a full batman-adv related packet.
Otherwise we may drop packets which have non-linear headers but which
hold valid data.
This doesn't affect non-linear skbs which have all headers in a linear
head unless we must process the whole packet like in ogms or vis
packets.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We can use skb_cow instead of a handwritten function to test and create
a writable skb buffer. This also allows us to pre-allocate headroom to
be able to send the data without re-allocating the buffer again to add
the ethernet header.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The vis information structure is used in a way that it can be transfered
directly as packet. It still had to be copied into a skb because of an
extra buffer used for the actual preparation of the data. This is
unnecessary and can be replaced by a simple clone instead of an full
copy before each send.
This makes also the send_raw_packet function obsolete.
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Marek Lindner
Sven Eckelmann
Haiyang Zhang
Andy Shevchenko
Joe Perches
Charles Clément
Pavan Savoy
Agustin March
Al Cho
Clelia V. Korol
Ema Cuevas
matias
Emanuel Mariano Ravera
Diego H. Iglesias
Vasiliy Kulikov
Randy Dunlap
David Cross
Maurice Dawson
Linus Lüssing
Manuel Stahl
Andrew Chew
Jason Cooper
Henry Ptasinski
Ben Hutchings
Greg Kroah-Hartman
Nikitas Angelinas
Vipin Mehta
Mike McCormack
Stephen Hemminger
Javier Martinez Canillas
Prashant P. Shah
Thomas Gleixner
Bernie Thompson
Michael Prokop
Julia Lawall