linux-dev/drivers/staging/batman-adv, branch master

Staging: batman-adv: Remove batman-adv from staging

2010-12-16T23:20:05Z

batman-adv is now moved to net/batman-adv/ and can be removed from staging. Signed-off-by: Sven Eckelmann Cc: David S. Miller Signed-off-by: Greg Kroah-Hartman

Staging: Merge 2.6.37-rc5 into staging-next

2010-12-07T18:47:56Z

This was done to handle a number of conflicts in the batman-adv and winbond drivers properly. It also now allows us to fix up the sysfs attributes properly that were not in the .37 release due to them being only in this tree at the time. Signed-off-by: Greg Kroah-Hartman

Staging: batman-adv: Use kernel functions to identify broadcasts

2010-11-29T19:09:14Z

linux/etherdevice.h already provides functions to classify different ethernet addresses. These inlineable functions should be used instead of custom functions. The check for multicast together with multicast can also be replaced with a single test for multicast because for every ethernet address x following is always true: is_broadcast_ether_addr(x) => is_multicast_ether_addr(x) or when looking more at the implementation: (FF:FF:FF:FF:FF:FF == x) => [(01:00:00:00:00:00 & x) != 00:00:00:00:00:00] Reported-by: Tobias Klauser Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman

Staging: batman-adv: Use kernel version min macro

2010-11-29T19:09:14Z

The kernel headers already provide different versions of a min/max macro which should be used by all modules according to Documentation/CodingStyle. Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman

Staging: batman-adv: add gateway IPv6 support by filtering DHCPv6 messages

2010-11-29T19:09:14Z

Some additional checks will be needed in case of extension headers like the fragmentation or hop-by-hop (for jumbo frames for example) headers or ipsec stuff. But this patch should do for most people for now, the rest can be added with a later one. Signed-off-by: Marek Lindner Acked-by: Linus Lüssing Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman

Staging: batman-adv: best gw DHCP filter 802.1Q support

2010-11-29T19:09:14Z

The DHCP filter inspects packets to determine whether or not to send them via ethernet unicast. This patch adds 802.1Q (vlan) support for this check. Signed-off-by: Marek Lindner [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman

Staging: batman-adv: send DHCP requests directly to the chosen gw

2010-11-29T19:09:13Z

If the gateway client mode is active batman-adv will send the broadcasted DHCP requests via unicast to the currently selected best gateway. Therefore attached clients can profit from batman's knowledge about the network topology. Signed-off-by: Marek Lindner [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman

Staging: batman-adv: adding gateway functionality

2010-11-29T19:09:13Z

Via the /sys filesystem you can change the gateway mode of a node using gw_mode. Adjustments to it can be done using gw_bandwidth for server mode and gw_sel_class for client mode. Signed-off-by: Marek Lindner [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman

Staging: batman-adv: Limit spin_locks to spin_lock_bh

2010-11-29T19:09:13Z

spin_lock_irqsave disables the IRQs and stores them inside the flags provided by the caller. This is needed to protect a bottom half handler or a user context critical section from being interrupted by an interrupt handler which also tries to acquire the spinlock and locks forever. The linux device drivers will receive the packets inside an interrupt handler and the network infrastructure will process them inside bottom half. Thus batman-adv will only run in user context and bottom half handlers. We can conclude that batman-adv doesn't share its own spinlocks with real interrupt handlers. This makes it possible to exchange the quite complex spin_lock_irqsave with spin_lock_bh which only stops bottom halves from running on the current cpu, but allows interrupt handlers to take over to keep the interrupt latency low. Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman

Staging: batman-adv: Rewrite hash using hlist_*

2010-11-29T19:09:13Z

The hash implementation is a complete implementation of a hash using buckets as hash entries and overflow buckets attached to them. The kernel already provides datastructures hlist_head and hlist_node which can be used to implement an hash using lists as hash buckets. So it is better to implement heavily used functionality on top of those instead of providing a full hash implementation. The rewrite changes the behavior of some functions slightly: * hash_add add elements to the front instead of the tail * hash_iterate doesn't provide pointer to access bucket->data directly, but it can be accessed using hlist_entry Reported-by: David S. Miller Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman