This second version of the bridge loop avoidance for batman-adv
avoids loops between the mesh and a backbone (usually a LAN).

By connecting multiple batman-adv mesh nodes to the same ethernet
segment a loop can be created when the soft-interface is bridged
into that ethernet segment. A simple visualization of the loop
involving the most common case - a LAN as ethernet segment:

node1  <-- LAN  -->  node2
  |                   |
wifi   <-- mesh -->  wifi

Packets from the LAN (e.g. ARP broadcasts) will circle forever from
node1 or node2 over the mesh back into the LAN.

With this patch, batman recognizes backbone gateways, nodes which are
part of the mesh and backbone/LAN at the same time. Each backbone
gateway "claims" clients from within the mesh to handle them
exclusively. By restricting that only responsible backbone gateways
may handle their claimed clients traffic, loops are effectively
avoided.
Signed-off-by: NSimon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: NAntonio Quartulli <ordex@autistici.org>

The functionality is to be replaced by an improved implementation,
so first clean up.
Signed-off-by: NSimon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: NAntonio Quartulli <ordex@autistici.org>

Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
Signed-off-by: NAntonio Quartulli <ordex@autistici.org>

Signed-off-by: NSven Eckelmann <sven@narfation.org>
Acked-by: NAntonio Quartulli <ordex@autistici.org>
Signed-off-by: NAntonio Quartulli <ordex@autistici.org>

bitarray.c consists mostly of functionality that is already available as part
of the standard kernel API. batman-adv could use architecture optimized code
and reduce the binary size by switching to the standard functions.
Signed-off-by: NSven Eckelmann <sven@narfation.org>
Signed-off-by: NAntonio Quartulli <ordex@autistici.org>

In packet.h the numeric constant 6 is used instead of the more portable ETH_ALEN
define. This patch substitute any hardcoded value with such define.
Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
Acked-by: NSven Eckelmann <sven@narfation.org>

Signed-off-by: NAntonio Quartulli <ordex@autistici.org>

Add myself as maintainer for net/batman-adv as announced by Marek Linder
Signed-off-by: NAntonio Quartulli <ordex@autistici.org>

Both drivers need to depend upon HAS_IOMEM, otherwise we
get a build failure on platforms like S390.

All the driver specific config options need to depend upon
the drivers themselves.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Everything has been set up in the PCI probe function.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Stanislav Yakovlev <stas.yakovlev@gmail.com>

No net_device.irq removal yet. The driver probe, remove and failure
paths need some care beforehand.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Stanislav Yakovlev <stas.yakovlev@gmail.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Stanislav Yakovlev <stas.yakovlev@gmail.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Jon Mason <mason@myri.com>
Acked-by: NAndrew Gallatin <gallatin@myri.com>

- pci_resource_start() can be removed from sis900_get_mac_addr() because
  the IO range is maped and stored into the device private struct early
  in the device probe function.
- the driver contains a few direct accesses to low IO ports that forbid
  to re(#)define the usual out{l, w, b} macros.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Daniele Venzano <venza@brownhat.org>

This is a pure PCI driver, no ISA here.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Acked-by: NGrant Grundler <grundler@parisc-linux.org>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

The bulk of the patch comes from the __iomem changes.

- the phy read and write operations were carrying the chip id deep
  down the call chain. Let's waste a pointer and contain the flying
  spaghetti monster.
- phy_{read, write}_1bit only need to access the DCR9 register. The loss
  of generality here should not hurt.
- removed a leftover printk of the EISA era. This is a pure PCI device.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Acked-by: NGrant Grundler <grundler@parisc-linux.org>

The eeprom registers always use the same PCI bar whereas the general
registers may either use the same mapping as the eeprom registers or
a different one. It is thus possible to simplify parse_eeprom().
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

It's useless to check mem_start on a newly allocated device.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Tim Hockin <thockin@hockin.org>

The device private data pointer can not be NULL in smsc9420_open().
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Steve Glendinning <steve.glendinning@smsc.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Acked-by: NGrant Grundler <grundler@parisc-linux.org>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Acked-by: NGrant Grundler <grundler@parisc-linux.org>

- unbalanced pci_disable_device
- PCI ressources were not released
- mismatching pci_alloc_.../kfree pairs are replaced by DMA alloc helpers.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Ack-by: NGrant Grundler <grundler@parisc-linux.org>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Ack-by: NGrant Grundler <grundler@parisc-linux.org>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Ack-by: NGrant Grundler <grundler@parisc-linux.org>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Acked-by: NMichael Chan <mchan@broadcom.com>

Some settings are duplicated between ethtool link management and module
options. The latter is trimmed. The half duplex, speed and autonegotiation
defaults are kept unchanged.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Ion Badulescu <ionut@badula.org>

It's useless to check mem_start on a newly allocated device as well.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Ion Badulescu <ionut@badula.org>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Jon Mason <jdmason@kudzu.us>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Jay Cliburn <jcliburn@gmail.com>
Cc: Chris Snook <chris.snook@gmail.com>