The airo driver is currently caching a pid for later use, but with the
implementation of containers, pids themselves do not uniquely identify a
task. The driver is also using kernel_thread() which is deprecated in
drivers.
This patch essentially replaces the kernel_thread() with kthread_create().
It also stores the task_struct of the airo_thread rather than its pid.
Since this introduces a second task_struct in struct airo_info, the patch
renames airo_info.task to airo_info.list_bss_task.
As an extension of these changes, the patch further:
- replaces kill_proc() with kthread_stop()
- replaces signal_pending() with kthread_should_stop()
- removes thread completion synchronisation which is handled by
kthread_stop().
[akpm@osdl.org: fix races]
Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Cc: Javier Achirica <achirica@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Running Linux 2.6.17-rc3-mm1 which has this patch included I get this
interesting message:
airo(eth0): WPA unsupported (only firmware versions 5.30.17 and greater
support WPA. Detected 5.30.17)
airo_test_wpa_capable assumes that the softSubVer part of the firmware
version number is coded in BCD. Apparently, that's not true.
I have firmware version 5.30.17 and cap_rid.softSubVer is 0x11==17.
Signed-off-by: Michal Schmidt <xschmi00@stud.feec.vutbr.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
airo cards with firmware versions of 5.30.17 and higher support WPA.
This patch recognizes WPA-capable firmware versions and adds support for
retrieving the WPA and RSN information elements from the card's scan
results. The JOB and FLAG fields are now independent, since there was
no space left in the FLAG field for FLAG_WPA_CAPABLE.
Signed-off-by: matthieu castet <castet.matthieu@free.fr>
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Airo firmware versions >= 5.30.17 send re-association events to the
driver that are currently unrecognized, causing spurious disassociation
events to be sent to user space. Loss of sync due to scan requests also
results in disassociation events sent to user space. This patch traps
those two events; suppressing sync-loss on scan, and sending the correct
association event on re-association notifications.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Observed problems when multiple processes request scans and subsequently
scan results. This causes a scan result request to hit card registers
before the scan is complete, returning an incomplete scan list and
possibly making the card very angry. Instead, cache the results of a
wireless scan and serve result requests from the cache, rather than
hitting the hardware for them.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The number 2312 was used all over the place to refer to the card's
default MTU. Make it a #define and use that everywhere rather than the
number.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Show the specific device that driver messages are about.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
These messages end up polluting logs when things like NetworkManager or
wpa_supplicant are controlling the driver. They aren't really that
useful, and no other drivers output messages like this when the user
fiddles with encryption keys. Users can use iwconfig and other
wireless-tools methods to determine and change the current transmit key
if they wish to do so manually. Therefore, remove the messages.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The previous patch that added ENCODEEXT and AUTH support to the airo
driver contained a slight error which would cause setting the TX
key index ignore a valid key-set request at the same time. This patch
allows any combination of setting the TX key index and setting an
encryption key.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch adds IWENCODEEXT and IWAUTH support to the airo driver for
WEP and unencrypted operation. No WPA though. It allows the driver to
operate more willingly with wpa_supplicant and NetworkManager.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
CRYPTO is a helper variable, and to make it easier for users, it should
therefore select'ed and not be listed in the dependencies.
drivers/net/wireless/airo.c requires CONFIG_CRYPTO for compilations.
Therefore, AIRO_CS also has to CRYPTO.
Additionally, this patch removes the #ifdef's for the non-compiling
CRYPTO=n case from drivers/net/wireless/airo.c.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
ESSIDs can technically include NULL characters. Drivers should not be
adjusting the length of the ESSID before reporting it in their
SIOCGIWESSID handlers. Breaks stuff like wpa_supplicant. Note that ipw
drivers, which seem to currently be the "most correct", don't have this
problem.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hello Jeff,
this patch changes causes the airo driver to not reset the card when a
temporary WEP key is set, when the IW_ENCODE_TEMP flag is used. This is
needed for xsupplicant as 802.1x, LEAP, etc. change WEP keys frequently
after authentication and resetting the card causes infinite
reauthentication.
Javier and Jean agree with the patch, Javier suggested I send this to
you, can you apply this?
Thanks.
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
without this patch after an rmmod, modprobe the card won't work anymore
until the next reboot.
This patch seem safe to apply for all cards as the bsd driver already do
that.
I had to add a timeout because strange things happen (issuecommand will
fail) if the card is already reseted (after a reboot).
PS : it seems there are missing reset when leaving monitor mode...
Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
More conversions of kmalloc/memset to kzalloc
Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch creates a file airo.h containing prototypes of the global
functions in airo.c used by airo_cs.c .
If you got strange problems with either airo_cs devices or in any other
completely unrelated part of the kernel shortly or long after a airo_cs
device was detected by the kernel, this might have been caused by the
fact that caller and callee disagreed regarding the size of the first
argument to init_airo_card()...
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
fid is declared as a u32 (unsigned int), and then a few lines later, it is checked for a value < 0, which is clearly useless.
In the two locations this function is used, in one it is *explicitly* given a negative number, which would be ignored with the
current definition.
Thanks to LinuxICC (http://linuxicc.sf.net).
Signed-off-by: Gabriel A. Devenyi <ace@staticwave.ca>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This patch rewrites various occurences of &sg[0] where sg is an array
of length one to simply sg.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch uses sg_set_buf/sg_init_one in some places where it was
duplicated.
Signed-off-by: David Hardeman <david@2gen.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cisco Aironet doesn't resume properly from swsusp, because the resume
method confuses a PM_EVENT_* for a PCI power state. It thinks that it is
resuming from PCI_D1 and doesn't do the necessary initialization of the
card.
Signed-off-by: Michal Schmidt <xschmi00@stud.feec.vutbr.cz>
this patch display the correct channel number with iwlist scan
Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Dan Williams already included most parts of my WE-19 patch for
the airo driver in the kernel. There was just a few bits he could not
do because WE-19 itself was not in the kernel. Those are the missing
bits.
Tested with 2.6.13 (with real HW).
Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This adds type-checking to pm_message_t, so that people can't confuse it
with int or u32. It also allows us to fix "disk yoyo" during suspend (disk
spinning down/up/down).
[We've tried that before; since that cpufreq problems were fixed and I've
tried make allyes config and fixed resulting damage.]
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Alexander Nyberg <alexn@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Since the patch to add a NULL short-circuit to crypto_free_tfm() went in,
there's no longer any need for callers of that function to check for NULL.
This patch removes the redundant NULL checks and also a few similar checks
for NULL before calls to kfree() that I ran into while doing the
crypto_free_tfm bits.
I've succesfuly compile tested this patch, and a kernel with the patch
applied boots and runs just fine.
When I posted the patch to LKML (and other lists/people on Cc) it drew the
following comments :
J. Bruce Fields commented
"I've no problem with the auth_gss or nfsv4 bits.--b."
Sridhar Samudrala said
"sctp change looks fine."
Herbert Xu signed off on the patch.
So, I guess this is ready to be dropped into -mm and eventually mainline.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch goes through the current users of the crypto layer and sets
CRYPTO_TFM_REQ_MAY_SLEEP at crypto_alloc_tfm() where all crypto operations
are performed in process context.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
`gcc -W' likes to complain if the static keyword is not at the beginning of
the declaration. This patch fixes all remaining occurrences of "inline
static" up with "static inline" in the entire kernel tree (140 occurrences in
47 files).
While making this change I came across a few lines with trailing whitespace
that I also fixed up, I have also added or removed a blank line or two here
and there, but there are no functional changes in the patch.
Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is part of the grand scheme to eliminate the qlen
member of skb_queue_head, and subsequently remove the
'list' member of sk_buff.
Most users of skb_queue_len() want to know if the queue is
empty or not, and that's trivially done with skb_queue_empty()
which doesn't use the skb_queue_head->qlen member and instead
uses the queue list emptyness as the test.
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix int vs. pm_message_t confusion in airo. Should change no code.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
1. Establish a simple API for process freezing defined in linux/include/sched.h:
frozen(process) Check for frozen process
freezing(process) Check if a process is being frozen
freeze(process) Tell a process to freeze (go to refrigerator)
thaw_process(process) Restart process
frozen_process(process) Process is frozen now
2. Remove all references to PF_FREEZE and PF_FROZEN from all
kernel sources except sched.h
3. Fix numerous locations where try_to_freeze is manually done by a driver
4. Remove the argument that is no longer necessary from two function calls.
5. Some whitespace cleanup
6. Clear potential race in refrigerator (provides an open window of PF_FREEZE
cleared before setting PF_FROZEN, recalc_sigpending does not check
PF_FROZEN).
This patch does not address the problem of freeze_processes() violating the rule
that a task may only modify its own flags by setting PF_FREEZE. This is not clean
in an SMP environment. freeze(process) is therefore not SMP safe!
Signed-off-by: Christoph Lameter <christoph@lameter.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch brings the airo driver into line with the current
WEXT specification of signal quality. It also fixes the values
used to determine signal quality and level for MPI & PCMCIA 350
cards. It turns out that BSSListRid.rssi was actually in dBm
for 350 series cards, and that we can use the normalized
signal strength reported by the card as our "quality" value, on
a scale of 0 - 100. Since signal level values are in dBm for
this driver, max_qual->level MUST be 0, as specified in the WEXT
spec. This patch also uses the IW_QUAL constants new in WEXT
version 17.
Signed-off-by: Dan Williams <dcbw@redhat.com>
This fixes remaining u32s in drivers/ net.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
