The MCP78S and MCP79 appear to be compatible with the previous nForce
chips as far as the SMBus controller is concerned. The MCP67 and MCP73
were not tested yet but I'd be very surprised if they weren't
compatible too.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Oleg Ryjkov <olegr@olegr.ca>
Cc: Malcolm Lalkaka <mlalkaka@gmail.com>
Cc: Zbigniew Luszpinski <zbiggy@o2.pl>
The automatic removal of i2c clients only affects the clients which
were created automatically in the first place. Add a comment saying
that to avoid any confusion.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
On popular demand, here comes some documentation about how to
instantiate i2c devices in the new (standard) i2c device driver
binding model.
I have also clarified how the class bitfield lets driver authors
control which buses are probed in the auto-detect case, and warned
more loudly against the abuse of this method.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michael Lawnick <nospam_lawnick@gmx.de>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (166 commits)
Revert "ax25: zero length frame filtering in AX25"
Revert "netrom: zero length frame filtering in NetRom"
cfg80211: default CONFIG_WIRELESS_OLD_REGULATORY to n
mac80211/iwlwifi: move virtual A-MDPU queue bookkeeping to iwlwifi
mac80211: fix aggregation to not require queue stop
mac80211: add skb length sanity checking
mac80211: unify and fix TX aggregation start
mac80211: clean up __ieee80211_tx args
mac80211: rework the pending packets code
mac80211: fix A-MPDU queue assignment
mac80211: rewrite fragmentation
iwlwifi: show current driver status in user readable format
b43: Add BCM4307 PCI-ID
cfg80211: fix locking in nl80211_set_wiphy
mac80211: fix RX path
ath5k: properly drop packets from ops->tx
ar9170: single module build
ath9k: fix dma mapping leak of rx buffer upon rmmod
rt2x00: New USB ID for rt73usb
ath5k: warn and correct rate for unknown hw rate indexes
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: We need to use compat_sys_ustat() as well.
sparc64: Fix MM refcount check in smp_flush_tlb_pending().
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (53 commits)
DVB: firedtv: FireDTV S2 problems with tuning solved
DVB: firedtv: fix printk format mismatch
ieee1394: constify device ID tables
ieee1394: raw1394: add sparse annotations to raw1394_compat_write
ieee1394: Storage class should be before const qualifier
ieee1394: sbp2: follow up on "ieee1394: inherit ud vendor_id from node vendor_id"
firewire: core: optimize propagation of BROADCAST_CHANNEL
firewire: core: simplify broadcast channel allocation
firewire: core: increase bus manager grace period
firewire: core: drop unused call parameters of close_transaction
firewire: cdev: add closure to async stream ioctl
firewire: cdev: simplify FW_CDEV_IOC_SEND_REQUEST return value
firewire: cdev: fix race of ioctl_send_request with bus reset
firewire: cdev: secure add_descriptor ioctl
firewire: cdev: amendment to "add ioctl to query maximum transmission speed"
firewire: broadcast channel support
firewire: implement asynchronous stream transmission
firewire: core: normalize a function argument name
firewire: normalize a variable name
firewire: core: remove condition which is always false
...
Sparc was missed in commit 2b1c6bd77d
("generic compat_sys_ustat"). We definitely need it, since our
__kernel_ino_t is "unsigned long".
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit f99bcff7a2.
Like netrom, Alan Cox says that zero lengths have real meaning
and are useful in this protocol.
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit a3ac80a130.
Alan Cox says that zero length writes do have special meaning
and are useful in this protocol.
Signed-off-by: David S. Miller <davem@davemloft.net>
And update description and feature-removal schedule according
to the new plan.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch removes all the virtual A-MPDU-queue bookkeeping from
mac80211. Curiously, iwlwifi already does its own bookkeeping, so
it doesn't require much changes except where it needs to handle
starting and stopping the queues in mac80211.
To handle the queue stop/wake properly, we rewrite the software
queue number for aggregation frames and internally to iwlwifi keep
track of the queues that map into the same AC queue, and only talk
to mac80211 about the AC queue. The implementation requires calling
two new functions, iwl_stop_queue and iwl_wake_queue instead of the
mac80211 counterparts.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Reinette Chattre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Instead of stopping the entire AC queue when enabling aggregation
(which was only done for hardware with aggregation queues) buffer
the packets for each station, and release them to the pending skb
queue once aggregation is turned on successfully.
We get a little more code, but it becomes conceptually simpler and
we can remove the entire virtual queue mechanism from mac80211 in
a follow-up patch.
This changes how mac80211 behaves towards drivers that support
aggregation but have no hardware queues -- those drivers will now
not be handed packets while the aggregation session is being
established, but only after it has been fully established.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We just found a bug in zd1211rw where it would reject
packets in the ->tx() method but leave them modified,
which would cause retransmit attempts with completely
bogus skbs, eventually leading to a panic due to not
having enough headroom in those.
This patch adds a sanity check to mac80211 to catch
such driver mistakes; in this case we warn and drop
the skb.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When TX aggregation becomes operational, we do a number of steps:
1) print a debug message
2) wake the virtual queue
3) notify the driver
Unfortunately, 1) and 3) are only done if the driver is first to
reply to the aggregation request, it is, however, possible that the
remote station replies before the driver! Thus, unify the code for
this and call the new function ieee80211_agg_tx_operational in both
places where TX aggregation can become operational.
Additionally, rename the driver notification from
IEEE80211_AMPDU_TX_RESUME to IEEE80211_AMPDU_TX_OPERATIONAL.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
__ieee80211_tx takes a struct ieee80211_tx_data argument, but only
uses a few of its members, namely 'skb' and 'sta'. Make that explicit,
so that less internal knowledge is required in ieee80211_tx_pending
and the possibility of introducing errors here is removed.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The pending packets code is quite incomprehensible, uses memory barriers
nobody really understands, etc. This patch reworks it entirely, using
the queue spinlock, proper stop bits and the skb queues themselves to
indicate whether packets are pending or not (rather than a separate
variable like before).
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Internally, mac80211 requires the skb's queue mapping to be set
to the AC queue, not the virtual A-MPDU queue. This is not done
correctly currently, this patch moves the code down to directly
before the driver is invoked and adds a comment that it will be
moved into the driver later.
Since this requires __ieee80211_tx() to have the sta pointer,
make sure to provide it in ieee80211_tx_pending().
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fragmentation currently uses an allocated array to store the
fragment skbs, and then keeps track of which have been sent
and which are still pending etc. This is rather complicated;
make it simpler by just chaining the fragments into skb->next
and removing from that list when sent. Also simplifies all
code that needs to touch fragments, since it now only needs
to walk the skb->next list.
This is a prerequisite for fixing the stored packet code,
which I need to do for proper aggregation packet storing.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luis reports that there's a circular locking dependency;
this is because cfg80211_dev_rename() will acquire the
cfg80211_mutex while the device mutex is held, while
this normally is done the other way around. The solution
is to open-code the device-getting in nl80211_set_wiphy
and require holding the mutex around cfg80211_dev_rename
rather than acquiring it within.
Also fix a bug -- rtnl locking is expected by drivers so
we need to provide it.
Reported-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Wolfram Sang
Jean Delvare
Linus Torvalds
David S. Miller
Luis R. Rodriguez
Johannes Berg
Wey-Yi Guy
Michael Buesch