wimax/i2400m: add the ability to fallback to other firmware files if the default is not there
In order to support backwards compatibility with older firmwares when
a driver is updated by a new kernel release, the i2400m bus drivers
can declare a list of firmware files they can work with (in general
these will be each a different version). The firmware loader will try
them in sequence until one loads.
Thus, if a user doesn't have the latest and greatest firmware that a
newly installed kernel would require, the driver would fall back to
the firmware from a previous release.
To support this, the i2400m->bus_fw_name is changed to be a NULL
terminated array firmware file names (and renamed to bus_fw_names) and
we add a new entry (i2400m->fw_name) that points to the name of the
firmware being currently used. All code that needs to print the
firmware file name uses i2400m->fw_name instead of the old
i2400m->bus_fw_name.
The code in i2400m_dev_bootstrap() that loads the firmware is changed
with an iterator over the firmware file name list that tries to load
each form user space, using the first one that succeeds in
request_firmware() (and thus stopping the iteration).
The USB and SDIO bus drivers are updated to take advantage of this and
reflect which firmwares they support.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Gerrit Renker [Fri, 27 Feb 2009 22:38:29 +0000 (22:38 +0000)]
dccp: Do not let initial option overhead shrink the MPS
This fixes a problem caused by the overlap of the connection-setup and
established-state phases of DCCP connections.
During connection setup, the client retransmits Confirm Feature-Negotiation
options until a response from the server signals that it can move from the
half-established PARTOPEN into the OPEN state, whereupon the connection is
fully established on both ends (RFC 4340, 8.1.5).
However, since the client may already send data while it is in the PARTOPEN
state, consequences arise for the Maximum Packet Size: the problem is that the
initial option overhead is much higher than for the subsequent established
phase, as it involves potentially many variable-length list-type options
(server-priority options, RFC 4340, 6.4).
Applying the standard MPS is insufficient here: especially with larger
payloads this can lead to annoying, counter-intuitive EMSGSIZE errors.
On the other hand, reducing the MPS available for the established phase by
the added initial overhead is highly wasteful and inefficient.
The solution chosen therefore is a two-phase strategy:
If the payload length of the DataAck in PARTOPEN is too large, an Ack is sent
to carry the options, and the feature-negotiation list is then flushed.
This means that the server gets two Acks for one Response. If both Acks get
lost, it is probably better to restart the connection anyway and devising yet
another special-case does not seem worth the extra complexity.
The result is a higher utilisation of the available packet space for the data
transmission phase (established state) of a connection.
The patch (over-)estimates the initial overhead to be 32*4 bytes -- commonly
seen values were around 90 bytes for initial feature-negotiation options.
It uses sizeof(u32) to mean "aligned units of 4 bytes".
For consistency, another use of 4-byte alignment is adapted.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Gerrit Renker [Fri, 27 Feb 2009 22:38:28 +0000 (22:38 +0000)]
dccp: Minimise header option overhead in setting the MPS
This patch resolves a long-standing FIXME to dynamically update the Maximum
Packet Size depending on actual options usage.
It uses the flags set by the feature-negotiation infrastructure to compute
the required header option size.
Most options are fixed-size, a notable exception are Ack Vectors (required
currently only by CCID-2). These can have any length between 3 and 1020
bytes. As a result of testing, 16 bytes (2 bytes for type/length plus 14 Ack
Vector cells) have been found to be sufficient for loss-free situations.
There are currently no CCID-specific header options which may appear on data
packets, thus it is not necessary to define a corresponding CCID field as
suggested in the old comment.
Further changes:
----------------
Adjusted the type of 'cur_mps' to match the unsigned return type of the
function.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:42 +0000 (04:44 +0000)]
tcp: get rid of two unnecessary u16s in TCP skb flags copying
I guess these fields were one day 16-bit in the struct but
nowadays they're just using 8 bits anyway.
This is just a precaution, didn't result any change in my
case but who knows what all those varying gcc versions &
options do. I've been told that 16-bit is not so nice with
some cpus.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:33 +0000 (04:44 +0000)]
tcp: separate timeout marking loop to it's own function
Some comment about its current state added. So far I have
seen very few cases where the thing is actually useful,
usually just marginally (though admittedly I don't usually
see top of window losses where it seems possible that there
could be some gain), instead, more often the cases suffer
from L-marking spike which is certainly not desirable
(I'll bury improving it to my todo list, but on a low
prio position).
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:32 +0000 (04:44 +0000)]
tcp: remove redundant code from tcp_mark_lost_retrans
Arnd Hannemann <hannemann@nets.rwth-aachen.de> noticed and was
puzzled by the fact that !tcp_is_fack(tp) leads to early return
near the beginning and the later on tcp_is_fack(tp) was still
used in an if condition. The later check was a left-over from
RFC3517 SACK stuff (== !tcp_is_fack(tp) behavior nowadays) as
there wasn't clear way how to handle this particular check
cheaply in the spirit of RFC3517 (using only SACK blocks, not
holes + SACK blocks as with FACK). I sort of left it there as
a reminder but since it's confusing other people just remove
it and comment the missing-feature stuff instead.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Arnd Hannemann <hannemann@nets.rwth-aachen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:31 +0000 (04:44 +0000)]
tcp: fix corner case issue in segmentation during rexmitting
If cur_mss grew very recently so that the previously G/TSOed skb
now fits well into a single segment it would get send up in
parts unless we calculate # of segments again. This corner-case
could happen eg. after mtu probe completes or less than
previously sack blocks are required for the opposite direction.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:28 +0000 (04:44 +0000)]
tcp: fix lost_cnt_hint miscounts
It is possible that lost_cnt_hint gets underflow in
tcp_clean_rtx_queue because the cumulative ACK can cover
the segment where lost_skb_hint points to only partially,
which means that the hint is not cleared, opposite to what
my (earlier) comment claimed.
Also I don't agree what I ended up writing about non-trivial
case there to be what I intented to say. It was not supposed
to happen that the hint won't get cleared and we underflow
in any scenario.
In general, this is quite hard to trigger in practice.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:27 +0000 (04:44 +0000)]
tcp: don't backtrack to sacked skbs
Backtracking to sacked skbs is a horrible performance killer
since the hint cannot be advanced successfully past them...
...And it's totally unnecessary too.
In theory this is 2.6.27..28 regression but I doubt anybody
can make .28 to have worse performance because of other TCP
improvements.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 2 Mar 2009 09:49:28 +0000 (01:49 -0800)]
rds: Fix build on powerpc.
As reported by Stephen Rothwell.
> Today's linux-next build (powerpc allyesconfig) failed like this:
>
> net/rds/cong.c: In function 'rds_cong_set_bit':
> net/rds/cong.c:284: error: implicit declaration of function 'generic___set_le_bit'
> net/rds/cong.c: In function 'rds_cong_clear_bit':
> net/rds/cong.c:298: error: implicit declaration of function 'generic___clear_le_bit'
> net/rds/cong.c: In function 'rds_cong_test_bit':
> net/rds/cong.c:309: error: implicit declaration of function 'generic_test_le_bit'
Signed-off-by: David S. Miller <davem@davemloft.net>
The Motorola MOTOMAGX phones (Z6, E8, Zn5 so far) are providing
combined ACM/BLAN USB configuration. Since it has Vendor Specific
class, the corresponding drivers (cdc-acm, zaurus) can't find it just
by interface info. This patch adds usb id so the zaurus driver can
properly handle this combined device.
Signed-off-by: Dmitriy Taychenachev <dimichxp@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Mon, 2 Mar 2009 04:45:40 +0000 (20:45 -0800)]
usbnet: make usbnet_get_link() fall back to ethtool_op_get_link()
Make usbnet_get_link() fall back to ethtool_op_get_link() instead of
defaulting to 1.
This makes usbnet_get_link return valid results without the need for a
driver specific check_connect or mii ops as long as the driver calls
netif_carrier_{on,off}() as appropriate. cdc_ether is an example of
such a driver.
Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
The current implementation of carrier detect in veth is broken.
It reports the link is down until both sides of the veth pair
are administatively up and then forever after it reports link up.
So fix veth so that it only reports link up when both interfaces
of the pair are administratively up.
Signed-off-by: Eric Biederman <ebiederm@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Wed, 25 Feb 2009 04:33:58 +0000 (04:33 +0000)]
cdc_ether: add usb id for Ericsson F3507g
The Ericsson F3507g wireless broadband module provides a CDC Ethernet
compliant interface, but identifies it as a "Mobile Direct Line" CDC
subclass, thereby preventing the CDC Ethernet class driver from picking
it up. This patch adds the device id to cdc_ether.c as a workaround.
Ericsson has provided a "class" driver for this device:
http://kerneltrap.org/mailarchive/linux-net/2008/10/28/3832094
But closer inspection of that driver reveals that it adds little more
than duplication of code from cdc_ether.c. See also
http://marc.info/?l=linux-usb&m=123334979706403&w=2
Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Fri, 27 Feb 2009 17:59:44 +0000 (17:59 +0000)]
jme: Adding {64,40}bits DMA mask back
All JMC250 chips have no problem with higher bits support.
Adding it back.
Found-by: Ethan Hsiao <ethanhsiao@jmicron.com> Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Fri, 27 Feb 2009 17:58:16 +0000 (17:58 +0000)]
jme: Clear all modified GHC register flags
Clear all modified GHC register flags.
Fixed-by: Ethan Hsiao <ethanhsiao@jmicron.com> Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Fri, 27 Feb 2009 17:57:01 +0000 (17:57 +0000)]
jme: Fix pci sync
We should sync ring descriptor to pci device after modifying it. Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Fri, 27 Feb 2009 17:54:07 +0000 (17:54 +0000)]
jme: Modifies messages to display correct hardware version
This patch modifies messages to display correct hardware version. Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Vecera [Mon, 2 Mar 2009 04:34:48 +0000 (20:34 -0800)]
r8169: read MAC address from EEPROM on init (2nd attempt)
This is 2nd attempt to implement the initialization/reading of MAC address
from EEPROM. The first used PCI's VPD and there were some problems, some
devices are not able to read EEPROM content by VPD. The 2nd one uses direct
access to EEPROM through bit-banging interface and my testing results seem
to be much better.
I tested 5 systems each with different Realtek NICs and I didn't find any
problem. AFAIK Francois's NICs also works fine.
Original description:
This fixes the problem when MAC address is set by ifconfig or by
ip link commands and this address is stored in the device after
reboot. The power-off is needed to get right MAC address.
This is problem when Xen daemon is running because it renames the device
name from ethX to pethX and sets its MAC address to FE:FF:FF:FF:FF:FF.
After reboot the device is still using FE:FF:FF:FF:FF:FF.
Signed-off-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 2 Mar 2009 04:32:39 +0000 (20:32 -0800)]
ixgbe: Fix some compiler warnings.
'pap' is never used in ixgbe_dcb_hw_config_82599()
and 'eec' in ixgbe_acquire_eeptom() is only used when
status == 0 but GCC has some trouble seeing that.
Signed-off-by: David S. Miller <davem@davemloft.net>
PJ Waskiewicz [Fri, 27 Feb 2009 15:45:05 +0000 (15:45 +0000)]
ixgbe: Add 82599 device id's, hook it up into the main driver.
With the hardware-specific code in place, add all supported device id's,
along with base driver changes to enable 82599 devices. The devices
being enabled are:
The device 8086:10fb is a fully-pluggable SFP+ NIC.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
PJ Waskiewicz [Fri, 27 Feb 2009 15:44:48 +0000 (15:44 +0000)]
ixgbe: Add DCB for 82599, remove BCN support
This patch adds the DCB (Data Center Bridging) support for 82599 hardware.
This is similar to how the 82598 DCB code works.
This patch also removes the BCN (Backwards Congestion Notification) netlink
configuration code from the driver. BCN was a pre-standard congestion
notification framework, and was not what the IEEE body decided upon for
standard congestion management. QCN (802.1Qau), Quantized Congestion
Notification is the accepted standard, which is not supported by 82599,
hence we remove the support altogether.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
PJ Waskiewicz [Fri, 27 Feb 2009 15:44:30 +0000 (15:44 +0000)]
ixgbe: Add hardware specific initialization code for 82599 devices
This patch adds the hardware initialization code specific to 82599. This
is similar to the 82598 hardware initialization code. It also includes all
changes to the existing hardware init code to support 82599.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sun, 1 Mar 2009 08:21:36 +0000 (00:21 -0800)]
tcp: fix retrans_out leaks
There's conflicting assumptions in shifting, the caller assumes
that dupsack results in S'ed skbs (or a part of it) for sure but
never gave a hint to tcp_sacktag_one when dsack is actually in
use. Thus DSACK retrans_out -= pcount was not taken and the
counter became out of sync. Remove obstacle from that information
flow to get DSACKs accounted in tcp_sacktag_one as expected.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Tested-by: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Leech [Fri, 27 Feb 2009 10:01:36 +0000 (10:01 +0000)]
net headers: cleanup dcbnl.h
1) add an include for <linux/types.h>
2) change dcbmsg.dcb_family from unsigned char to __u8 to be more
consistent with use of kernel types
Signed-off-by: Chris Leech <christopher.leech@intel.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Sun, 1 Mar 2009 08:11:52 +0000 (00:11 -0800)]
netpoll: Add drop checks to all entry points
The netpoll entry checks are required to ensure that we don't
receive normal packets when invoked via netpoll. Unfortunately
it only ever worked for the netif_receive_skb/netif_rx entry
points. The VLAN (and subsequently GRO) entry point didn't
have the check and therefore can trigger all sorts of weird
problems.
This patch adds the netpoll check to all entry points.
I'm still uneasy with receiving at all under netpoll (which
apparently is only used by the out-of-tree kdump code). The
reason is it is perfectly legal to receive all data including
headers into highmem if netpoll is off, but if you try to do
that with netpoll on and someone gets a printk in an IRQ handler
you're going to get a nice BUG_ON.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (21 commits)
USB: musb: fix srp sysfs entry deletion
USB: musb: resume suspended root hub on disconnect
USB: musb: use right poll limit for low speed devices
USB: musb: be careful with 64K+ transfer lengths, host side
USB: musb: fix data toggle saving with shared FIFO
USB: musb: host endpoint_disable() oops fixes
USB: musb: fix urb_dequeue() method
USB: musb: fix musb_host_tx() for shared endpoint FIFO
USB: musb: be careful with 64K+ transfer lengths (gadget side)
usb: musb: make Davinci *work* in mainline
USB: usb_get_string should check the descriptor type
USB: gadget: fix build error in omap_apollon_2420_defconfig
USB: g_file_storage: automatically disable stalls under Atmel
USB: usb-storage: add IGNORE_RESIDUE flag for Genesys Logic adapters
USB: Quirk for Hummingbird huc56s / Conexant ACM modem
USB: serial: add support for second revision of Ericsson F3507G WWAN card
USB: cdc-acm: add usb id for motomagx phones
USB: option: add BenQ 3g modem information
usb: gadget: obex: select correct ep descriptors
USB: EHCI: slow down ITD reuse
...
Linus Torvalds [Sat, 28 Feb 2009 00:48:33 +0000 (16:48 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
Revert "MIPS: Print irq handler description"
MIPS: CVE-2009-0029: Enable syscall wrappers.
MIPS: Alchemy: In plat_time_init() t reaches -1, tested: 0
MIPS: Only allow Cavium OCTEON to be configured for boards that support it
Linus Torvalds [Sat, 28 Feb 2009 00:43:05 +0000 (16:43 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: enable DMAR by default
xen: disable interrupts early, as start_kernel expects
gpu/drm, x86, PAT: io_mapping_create_wc and resource_size_t
gpu/drm, x86, PAT: Handle io_mapping_create_wc() errors in a clean way
x86, Voyager: fix compile by lifting the degeneracy of phys_cpu_present_map
x86, doc: fix references to Documentation/x86/i386/boot.txt
Linus Torvalds [Sat, 28 Feb 2009 00:40:00 +0000 (16:40 -0800)]
Merge branch 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: ap325rxa: Revert ov772x support.
serial: sh-sci: fix overrun error handling for SH7785 SCIF.
sh: Storage class should be before const qualifier
Commit 8e961870bb9804110d5c8211d5d9d500451c4518 removed the FREEZE/THAW
handling in xfs_compat_ioctl but never added any compat handler back, so
now any freeze/thaw request from a 32-bit binary ond 64-bit userspace
will fail.
As these ioctls are 32/64-bit compatible two simple COMPATIBLE_IOCTL
entries in fs/compat_ioctl.c will do the job.
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andy Whitcroft [Fri, 27 Feb 2009 22:03:05 +0000 (14:03 -0800)]
checkpatch: make in_atomic ok in the core
We say that in_atomic() is ok in the core kernel, but then always report
it regardless of where in the kernel it is. Keep quiet if it is used in
kernel/*.
Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 27 Feb 2009 22:03:03 +0000 (14:03 -0800)]
Fix recursive lock in free_uid()/free_user_ns()
free_uid() and free_user_ns() are corecursive when CONFIG_USER_SCHED=n,
but free_user_ns() is called from free_uid() by way of uid_hash_remove(),
which requires uidhash_lock to be held. free_user_ns() then calls
free_uid() to complete the destruction.
Fix this by deferring the destruction of the user_namespace.
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Benny Halevy [Fri, 27 Feb 2009 22:02:59 +0000 (14:02 -0800)]
EXPORT_SYMBOL(d_obtain_alias) rather than EXPORT_SYMBOL_GPL
Commit 4ea3ada2955e4519befa98ff55dd62d6dfbd1705 declares d_obtain_alias()
as EXPORT_SYMBOL_GPL where it's supposed to replace d_alloc_anon which was
previously declared as EXPORT_SYMBOL and thus available to any loadable
module.
This patch reverts that.
Signed-off-by: Benny Halevy <bhalevy@panasas.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Christoph Hellwig <hch@infradead.org> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ben Gardner [Fri, 27 Feb 2009 22:02:58 +0000 (14:02 -0800)]
w1_ds2433: clear the validcrc flag after a write
The w1_ds2433 driver does not read from the hardware if the CRC was valid
on the last read. The validcrc flag should be cleared after a write so
that the new value can be read.
Signed-off-by: Ben Gardner <gardner.ben@gmail.com> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Anand Gadiyar [Sat, 21 Feb 2009 23:31:40 +0000 (15:31 -0800)]
USB: musb: resume suspended root hub on disconnect
If this is not done, khubd will not be informed of the disconnect
and will assume the device is still there.
Easily seen when a hub is connected with no device attached to it;
it will autosuspend. When the hub is disconnected, it still shows
up in /proc/bus/usb/devices
Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Sat, 21 Feb 2009 23:31:23 +0000 (15:31 -0800)]
USB: musb: be careful with 64K+ transfer lengths, host side
Feeding 32-bit length cast down to 'u16' to min() to calculate the FIFO
count in musb_host_tx() risks sending a short packet prematurely for
transfer sizes over 64 KB.
Similarly, although data transfer size shouldn't exceed 65535 bytes for
the control endpoint, making musb_h_ep0_continue() more robust WRT URBs
with possibly oversized buffer will not hurt either...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Sat, 21 Feb 2009 23:31:13 +0000 (15:31 -0800)]
USB: musb: fix data toggle saving with shared FIFO
For some strange reason the host side musb_giveback() decides
that it's always got an IN transfer when the hardware endpoint
is using a shared FIFO. This causes musb_save_toggle() to read
the toggle state from the RXCSR register instead of TXCSR, and
may also cause unneeded reloading of RX endpoint registers.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Sat, 21 Feb 2009 23:31:01 +0000 (15:31 -0800)]
USB: musb: host endpoint_disable() oops fixes
The musb_h_disable() routine can oops in some cases:
- It's not safe to read hep->hcpriv outside musb->lock,
since it gets changed on completion IRQ paths.
- The list iterators aren't safe to use in that way;
just remove the first element while !list_empty(),
so deletions on other code paths can't make trouble.
We need two "scrub the list" loops because only one branch
should touch hardware and advance the schedule.
Sergei Shtylyov [Sat, 21 Feb 2009 23:30:45 +0000 (15:30 -0800)]
USB: musb: fix urb_dequeue() method
The urb_dequeue() method forgets to unlink 'struct musb_qh' from the
control or bulk schedules when the URB being cancelled is the only
one queued to its endpoint. That will cause musb_advance_schedule()
to block once it reaches 'struct musb_qh' with now empty URB list, so
URBs queued for other endpoints after the one being dequeued will not
be served.
Fix by unlinking the QH from the list except when it's already being
handled (typically by musb_giveback). Since a QH with an empty URB
list is now supposed to be freed, do that. And remove a now-useless
check from musb_advance_schedule().
[ dbrownell@users.sourceforge.net: update patch description,
and fold in a dequeue() comment patch ]
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB: musb: fix musb_host_tx() for shared endpoint FIFO
The input queue should be used for TX on endpoints which
share FIFO hardware. The host TX path wasn't doing that.
Shared FIFOs are most often configured for periodic endpoints,
which are mostly used for RX/IN transfers ... that's probably
how this bug managed to linger for a long time.
Felipe Balbi [Sat, 21 Feb 2009 23:29:42 +0000 (15:29 -0800)]
USB: musb: be careful with 64K+ transfer lengths (gadget side)
request->actual is an unsigned and we should use the same
variable type for fifo_count otherwise we might lose some
data if request->length >= 64kbytes.
David Brownell [Fri, 20 Feb 2009 21:45:17 +0000 (13:45 -0800)]
usb: musb: make Davinci *work* in mainline
Now that the musb build fixes for DaVinci got merged (RC3?), kick in
the other bits needed to get it finally *working* in mainline:
- Use clk_enable()/clk_disable() ... the "always enable USB clocks"
code this originally relied on has since been removed.
- Initialize the USB device only after the relevant I2C GPIOs are
available, so the host side can properly enable VBUS.
- Tweak init sequencing to cope with mainline's relatively late init
of the I2C system bus for power switches, transceivers, and so on.
Sanity tested on DM6664 EVM for host and peripheral modes; that system
won't boot with CONFIG_PM enabled, so OTG can't yet be tested. Also
verified on OMAP3.
(Unrelated: correct the MODULE_PARM_DESC spelling of musb_debug.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Felipe Balbi <me@felipebalbi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Fri, 20 Feb 2009 21:33:08 +0000 (16:33 -0500)]
USB: usb_get_string should check the descriptor type
This patch (as1218) fixes a problem with a radio-control joystick used
in the "walkera 4#3" helicopter. This device responds to the initial
Get-String-Descriptor request for string 0 (which is really the list
of supported languages) by sending its config descriptor! The
usb_get_string() routine needs to check whether it got the right
type of descriptor.
Oddly enough, this sort of check is already present in
usb_get_descriptor(). The patch changes the error code from -EPROTO
to -ENODATA, because -EPROTO shows up in so many other contexts to
indicate a hardware failure rather than a firmware error.
Alan Stern [Tue, 24 Feb 2009 21:19:47 +0000 (16:19 -0500)]
USB: g_file_storage: automatically disable stalls under Atmel
This patch (as1220) automatically disables stalls when g_file_storage
finds itself running with an Atmel device controller, because the
Atmel hardware/driver isn't capable of halting bulk endpoints
correctly.
Reported-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Mon, 23 Feb 2009 17:02:05 +0000 (12:02 -0500)]
USB: usb-storage: add IGNORE_RESIDUE flag for Genesys Logic adapters
This patch (as1219) adds the IGNORE_RESIDUE flag to the unusual_devs
entries for Genesys Logic's USB-IDE adapter. Although this device
usually gets the residue correct, there is one command crucial to the
operation of CD and DVD drives which it messes up.
Tested-by: Mike Lampard <mike@mtgambier.net> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Motorola MOTOMAGX phones (Z6, E8, Zn5 so far) are providing
combined ACM/BLAN USB configuration. Since it has Vendor Specific
class, the corresponding drivers (cdc-acm, zaurus) can't find it just
by interface info. This patch adds usb id so the cdc-acm driver can
properly handle this combined device.
Karsten Wiese [Mon, 9 Feb 2009 00:07:58 +0000 (16:07 -0800)]
USB: EHCI: slow down ITD reuse
Currently ITDs are immediately recycled whenever their URB completes.
However, EHCI hardware can sometimes remember some ITD state. This
means that when the ITD is reused before end-of-frame it may sometimes
cause the hardware to reference bogus state.
This patch defers reusing such ITDs by moving them into a new ehci member
cached_itd_list. ITDs resting in cached_itd_list are moved back into their
stream's free_list once scan_periodic() detects that the active frame has
elapsed.
This makes the snd_usb_us122l driver (in kernel since .28) work right
when it's hooked up through EHCI.
Li Yang [Fri, 13 Feb 2009 08:14:39 +0000 (16:14 +0800)]
USB: fsl_usb2_udc: fix potential queue head corruption
Clear next TD field and status field in queue head initialization code
to prevent unpredictable result caused by residue of usb reset.
Signed-off-by: Li Yang <leoli@freescale.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pekka Enberg [Fri, 30 Jan 2009 09:32:47 +0000 (11:32 +0200)]
Staging: w35und: fix usb_control_msg() error handling in wb35_probe()
If successful, the usb_control_msg() function returns the number of
bytes transferred. Fix up wb35_probe() to only bail out if the function returns
a negative number. Also, fix up ieee80211_alloc_hw() error code to ENOMEM;
otherwise GCC complains that err might be undefined (and is right about that).
Acked-by: Pavel Machek <pavel@suse.cz> Reported-and-tested-by: Sandro Bonazzola <sandro.bonazzola@gmail.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Check for null pardevice (not registered, ej: panel never attached,
inexistent parport, etc. ) before calling parport_release,
parport_unregister_device, and related funcs on module release.
Staging: rtl8187se: Fix oops and memory poison caused by builtin ieee80211.
when modprobe and removing rtl8187se ( just for testing, i do not have
that card , and oops and a memory poison error happens on the builtin
ieee80211 of that driver. I dont know if they will port it to the
current ieeee80221 instead of the builtin ones, but just in case i
attach a proposed fix for that problem.
- Change for loop on ieee80211_crypto_deinit for list_for_each_safe to
remove items. Is there an spinlock needed here?
- Call ieee80211_crypto_deinit after exiting all registerd crypto protocols.
Randy Dunlap [Wed, 11 Feb 2009 21:20:44 +0000 (13:20 -0800)]
Staging: rtl8187se: fix Kconfig dependencies
rtl8187se uses wireless extensions so it needs to depend on
WIRELESS_EXT (or select it).
rtl8187se uses fields in struct net_device that are only present
if CONFIG_COMPAT_NET_DEV_OPS=y, so it needs to depend on
that symbol also.
drivers/staging/rtl8187se/r8180_core.c:5973: error: 'struct net_device' has no member named 'wireless_handlers'
drivers/staging/rtl8187se/r8180_core.c:5982: error: 'struct net_device' has no member named 'wireless_handlers'
drivers/staging/rtl8187se/r8180_core.c:201: error: 'struct net_device' has no member named 'stop'
drivers/staging/rtl8187se/r8180_core.c:4584: error: 'struct net_device' has no member named 'get_stats'
drivers/staging/rtl8187se/r8180_core.c:5969: error: 'struct net_device' has no member named 'open'
drivers/staging/rtl8187se/r8180_core.c:5970: error: 'struct net_device' has no member named 'stop'
drivers/staging/rtl8187se/r8180_core.c:5972: error: 'struct net_device' has no member named 'tx_timeout'
drivers/staging/rtl8187se/r8180_core.c:5974: error: 'struct net_device' has no member named 'do_ioctl'
drivers/staging/rtl8187se/r8180_core.c:5975: error: 'struct net_device' has no member named 'set_multicast_list'
drivers/staging/rtl8187se/r8180_core.c:5976: error: 'struct net_device' has no member named 'set_mac_address'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jouni Malinen [Tue, 24 Feb 2009 14:49:58 +0000 (16:49 +0200)]
nl80211: Avoid AP mode BUG_ON hang with invalid lock assert
"cfg80211: add assert_cfg80211_lock() to ensure proper protection"
added assert_cfg80211_lock() calls into various places. At least
one of them, nl80211_send_wiphy(), should not have been there. That
triggers the BUG_ON in assert_cfg80211_lock() and pretty much kills
the kernel whenever someone runs hostapd.. Remove that call and make
assert_cfg80211_lock() use WARN_ON instead of BUG_ON to be a bit more
friendly to users.
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
It was not a good idea to do a TSF reset on strange IBSS merges to the same BSSID. For example it will break the TSF sync of ath9k completely and it is unnecessary as all hardware I have tested do a TSF sync to a higher value automatically and IBSS merges are only done to higher TSF values. It only need a TSF reset to accept a lower value, when the IBSS network is changed manually.
Signed-off-by: Alina Friedrichsen <x-alina@gmx.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bob Copeland [Sat, 21 Feb 2009 19:44:18 +0000 (14:44 -0500)]
ath9k: fix 802.11g conformance test limit typo
802.11g is in 2 ghz band, not 5 ghz.
Signed-off-by: Bob Copeland <me@bobcopeland.com> Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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