linux.git/net/mac80211/rate.c, branch v3.9

mac80211: convert to channel definition struct

2012-11-26T11:42:59+00:00

Convert mac80211 (and where necessary, some drivers a
little bit) to the new channel definition struct.

This will allow extending mac80211 for VHT, which is
currently restricted to channel contexts since there
are no drivers using that which makes it easier. As
I also don't care about VHT for drivers not using the
channel context API, I won't convert the previous API
to VHT support.

Signed-off-by: Johannes Berg

simple_open: automatically convert to simple_open()

2012-04-05T22:25:50+00:00

Many users of debugfs copy the implementation of default_open() when
they want to support a custom read/write function op.  This leads to a
proliferation of the default_open() implementation across the entire
tree.

Now that the common implementation has been consolidated into libfs we
can replace all the users of this function with simple_open().

This replacement was done with the following semantic patch:


@ open @
identifier open_f != simple_open;
identifier i, f;
@@
-int open_f(struct inode *i, struct file *f)
-{
(
-if (i->i_private)
-f->private_data = i->i_private;
|
-f->private_data = i->i_private;
)
-return 0;
-}

@ has_open depends on open @
identifier fops;
identifier open.open_f;
@@
struct file_operations fops = {
...
-.open = open_f,
+.open = simple_open,
...
};


[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Stephen Boyd 
Cc: Greg Kroah-Hartman 
Cc: Al Viro 
Cc: Julia Lawall 
Acked-by: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2012-03-01T22:57:40+00:00

Conflicts:
	drivers/net/ethernet/broadcom/tg3.c

Conflicts in the statistics regression bug fix from 'net',
but happily Matt Carlson originally posted the fix against
'net-next' so I used that to resolve this.

Signed-off-by: David S. Miller

mac80211: zero initialize count field in ieee80211_tx_rate

2012-02-21T19:45:26+00:00

rate control algorithms concludes the rate as invalid
with rate[i].idx < -1 , while they do also check for rate[i].count is
non-zero. it would be safer to zero initialize the 'count' field.
recently we had a ath9k rate control crash where the ath9k rate control
in ath_tx_status assumed to check only for rate[i].count being non-zero
in one instance and ended up in using invalid rate index for
'connection monitoring NULL func frames' which eventually lead to the crash.
thanks to Pavel Roskin for fixing it and finding the root cause.
https://bugzilla.redhat.com/show_bug.cgi?id=768639

Cc: stable@vger.kernel.org
Cc: Pavel Roskin 
Signed-off-by: Mohammed Shafi Shajakhan 
Signed-off-by: John W. Linville

mac80211: call rate control only after init

2012-02-15T18:56:06+00:00

There are situations where we don't have the
necessary rate control information yet for
station entries, e.g. when associating. This
currently doesn't really happen due to the
dummy station handling; explicitly disabling
rate control when it's not initialised will
allow us to remove dummy stations.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: call rate control only after init

2012-02-06T20:35:11+00:00

There are situations where we don't have the
necessary rate control information yet for
station entries, e.g. when associating. This
currently doesn't really happen due to the
dummy station handling; explicitly disabling
rate control when it's not initialised will
allow us to remove dummy stations.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: off by one in mcs mask handling

2012-02-06T19:55:41+00:00

"ridx" is used as an index into the mcs_mask[] array which has
IEEE80211_HT_MCS_MASK_LEN elements.

Signed-off-by: Dan Carpenter 
Signed-off-by: John W. Linville

mac80211: add support for mcs masks

2012-01-30T20:48:26+00:00

* Handle MCS masks set by the user.
* Match rates provided by the rate control algorithm to the mask set,
  also in HT mode, and switch back to legacy mode if necessary.
* add debugfs files to observate the rate selection

Signed-off-by: Simon Wunderlich 
Signed-off-by: Mathias Kretschmer 
Signed-off-by: John W. Linville

mac80211: clean up rate control code

2012-01-24T19:21:55+00:00

It seems exceedingly unlikely that we'll ever
support swapping rate control algorithms at
runtime, so remove the unused refcounting code.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

net: Fix files explicitly needing to include module.h

2011-10-31T23:30:28+00:00

With calls to modular infrastructure, these files really
needs the full module.h header.  Call it out so some of the
cleanups of implicit and unrequired includes elsewhere can be
cleaned up.

Signed-off-by: Paul Gortmaker