Commit graph

155464 commits

Author SHA1 Message Date
David Brownell
89368d3d11 USB: musb: silence "suspend as a_wait_vrise is_active" msgs
Get rid of some obnoxious and inappropriate messaging, mostly on
DaVinci, when usbcore tries to autosuspend a root hub if just a
mini/micro-A connector is connected.  Symptom: endless stream of
messages reading like:

 musb_bus_suspend 2221: trying to suspend as a_wait_vrise is_active=1

Improve that musb bus suspend primitive a bit.  Take advantage of
this call to update the OTG state machine if appropriate, moving
the device out of the A_WAIT_VRISE state.  There's basically no
timer for that state transition just now, except with tusb6010;
that can make trouble.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
David Brownell
6d84599b3c USB: gadget: pxa25x compiler warning fix
Fix config-dependent compiler warning:

  CC      drivers/usb/gadget/pxa25x_udc.o
drivers/usb/gadget/pxa25x_udc.c: In function 'pxa25x_udc_irq':
drivers/usb/gadget/pxa25x_udc.c:1806: warning: array subscript is above array bounds

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Philipp Zabel
56a075dcd6 USB: gadget: pxa25x uses gpio_is_valid
Use gpio_is_valid instead of assuming that every GPIO
number != 0 is valid while 0 is not.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Kevin Hilman
30899ca7f2 USB: musb: davinci dm6446evm GPIO renumbering
Numbering for GPIOs on the pcf857x chips on the dm644x EVM board
changed when DaVinci chips with more GPIOs were supported.  Update
the GPIO number used for nVBUS_DRV.

Longer term, we need a better abstraction of board-specific setup in
this code so we're not hard-coding board specific GPIOs into the
driver, but for now this at least gets it back to working with
mainline davinci core code.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
David Brownell
d163ef2483 USB: musb: davinci dm355 updates (remainder)
Finish merging updates for DM355 chips into musb/davinci.c now
that its support is in mainline:  kick in new DRVVBUS controls.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Qiuping Chen
6bc2146e2b USB: gadget: rndis conformance tweak
Support OID_802_3_MAC_OPTIONS in gen_ndis_query_resp() of rndis.c to
make RNDIS gadget pass 1c_SetMulticast subtest in Microsoft NDISTest6:

  http://www.microsoft.com/whdc/DevTools/tools/NDIStest.mspx

The other tests in NDISTest6 are passed.

[ dbrownell@users.sourceforge.net: remove OID_802_3_MAXIMUM_LIST_SIZE
setting ... it was bogus, this code only handles one entry, not 32.
And we don't know what would break if we lied about that... ]

Signed-off-by: Helen Chen <helen.chen@intel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Oliver Neukum
ca157c4a51 USB: fix memory leak in usbtmc
If an error is returned kfree must also be called.


Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Arnd Bergmann
45e83889eb USB: buildfix ppc randconfig
We could just make the USB_OHCI_HCD_PPC_OF option implicit
and selected only if at least one of USB_OHCI_HCD_PPC_OF_BE
and USB_OHCI_HCD_PPC_OF_LE are set.

[ dbrownell@users.sourceforge.net: fix patch manglation and dependencies ]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Greg Kroah-Hartman
3c43f27bf5 USB: ti_usb_3410_5052: fix duplicate device ids.
commit 1a1fab5137 accidentally added the
device id to both tables in the driver, which causes problems as this is
only a single port device, not a multiple port device.

Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Greg Kroah-Hartman
05cbc2d582 USB: gadget: audio: provide correct device id
The audio gadget driver should use a "Linux" device id, instead
of relying on NetChip's vendor id.  So provide one out of our reserved
namespace.

Cc: Bryan Wu <cooloney@kernel.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Greg Kroah-Hartman
1a74826fa1 Revert "USB: Add Intel Langwell USB OTG Transceiver Drive"
This reverts commit 453f775588.

The driver should not have been accepted as the MSRT code is not
in the main kernel yet, which this depends on.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Hao Wu <hao.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Brad Lu
e3a3174519 USB: option.c to support Qisda H21/H20 usb modem
This patch added Qisda(VID) & H21/H20(PID) into to supporting list.
Please help to check this patch,

From: Brad Lu <Brad.Lu@Qisda.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Kai Engert
83dfdaa362 USB: option.c: add Qualcomm/Option iCON 210 modem
Add modem portion of USB device labeled:
Model iCON 210, Qualcomm 3G HSDPA, designed in EU by Option

Device starts in usb-storage mode (1e0e:f000) and requires the use of a tool
like usb_modeswitch to switch it to modem mode (1e0e:9000).

Signed-off-by: Kai Engert <kaie@kuix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Mike Frysinger
4198e4f7e0 USB: isp1760: use __devexit_p() for remove function
The isp1760_plat_remove function is declared with __devexit, so the
.remove assignment needs to be wrapped with __devexit_p().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Alan Stern
a455212d19 USB: EHCI: update toggle state for linked QHs
This is an update to the "usb-ehci-update-toggle-state-for-linked-qhs"
patch.  Since an HCD's endpoint_reset method can be called in
interrupt context, it mustn't assume that interrupts are enabled or
that it can sleep.

So we revert to the original way of refreshing QHs' toggle bits.  Now
the endpoint_reset method merely clears the toggle flag in the device
structure (as was done before) and starts an async QH unlink.  When the
QH is linked again, after the unlink finishes and an URB is queued,
the qh_refresh() routine will update the QH's toggle bit.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: David <david@unsolicited.net>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Roel Kluin
9525dcb30f USB: fhci: mutually exclusive port_status
FHCI_PORT_DISABLED, -LOW and -FULL are mutually exclusive as status.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Jan Capek
9d37ff6456 USB: ftdi_sio - product ID's for CCS PIC programmers
The product ID's for the following devices have been added:
- LOAD-n-GO
- ICD-U64
- PRIME-8

Signed-off-by: Jan Capek <jan@ccsinfo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Paulius Zaleckas
c03e7d4bc1 USB: gadget: fix imx_udc entry in Kconfig
Move USB_GADGET_IMX to the right section of Kconfig as this
controller is available only as integrated on i.MX CPU.

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Gianpaolo Cugola
8540d66615 USB: pl2303: New vendor and product id for the prolific driver
I recently bought a PC interface for the Cressi Edy dive computer
(www.cressi.it) and discovered that it uses the pl2303 chip, albeit
with ad-hoc vendor and product ids (04b8, 0521 respectively). Being in
the process of writing a linux software for such device (cressi only
provides a windows software), I patched the pl2303 linux driver to
have the interface recognized. I am submitting you the patch (very
basic) for inclusion in next kernel version.

From: Gianpaolo Cugola <gianpaoloc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:35 -07:00
Ben Hutchings
635ecaa70e netdev: restore MTU change operation
alloc_etherdev() used to install a default implementation of this
operation, but it must now be explicitly installed in struct
net_device_ops.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-12 14:20:04 -07:00
Ben Hutchings
240c102d9c netdev: restore MAC address set and validate operations
alloc_etherdev() used to install default implementations of these
operations, but they must now be explicitly installed in struct
net_device_ops.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-12 14:20:02 -07:00
Alexander Beregalov
f6387184f5 Staging: stlc45xx: convert config_interface to bss_info_changed, fixing a build error
See commit 2d0ddec5b2 (mac80211: unify config_interface and
bss_info_changed)

This fixes a build error.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:45 -07:00
Herton Ronaldo Krzesinski
8231eb5672 Staging: comedi: s626: use subvendor:subdevice ids for SAA7146 board
The current s626 comedi driver in staging conflicts with philips SAA7146
media/dvb based cards, because it claims the same vendor:device pci id
for all subdevice/subvendor ids. What happens is that for people that have a
philips SAA7146 media/dvb based card, s626 if available gets loaded by udev
and makes system freeze (https://qa.mandriva.com/show_bug.cgi?id=51445).

The s626 driver shouldn't claim all 1131:7146 devices. Fix this by
specifying specific known subvendor:subdevice ids in its pci id table
list.

Also s626_attach is modified to use now pci_get_subsys instead of
pci_get_device as reported by Ian Abbott, and now we loop over pci id
table entries in case more ids are added in the future.

Reference: http://lkml.org/lkml/2009/6/16/552

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:45 -07:00
Dan Aloni
91fca6da38 Staging: prevent rtl8192su from crashing dev_ioctl in SIOCGIWNAME
(adapted from the rtl8187se patch)

ieee80211_wx_get_name() ignores sizeof(wrqu->name) which is IFNAMSIZ (16), and
on certain conditions, the concatenated string will be larger than IFNAMSIZ
including the terminating zero.

    length ("802.11" ++ "b" ++ "/g" ++ " linked" ++ "\x00") == 17

This fix uses strl{cpy,cat} in addition to the reduction of the total
possible length of the output string by a char.

It can be applied to 2.6.30-stable as well.

Signed-off-by: Dan Aloni <dan@aloni.org>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:45 -07:00
Dan Aloni
02c8baecf5 Staging: prevent rtl8187se from crashing dev_ioctl() in SIOCGIWNAME
I repeatedly get __stack_chk_fail panic()s with this driver before
applying the attached fix.

ieee80211_wx_get_name() ignores sizeof(wrqu->name) which is IFNAMSIZ (16), and
on certain conditions, the concatenated string will be larger than IFNAMSIZ
including the terminating zero.

    length ("802.11" ++ "b" ++ "/g" ++ " linked" ++ "\x00") == 17

This fix uses strl{cpy,cat} in addition to the reduction of the total
possible length of the output string by a char.

It can be applied to 2.6.30-stable as well.

Signed-off-by: Dan Aloni <dan@aloni.org>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:45 -07:00
Bartlomiej Zolnierkiewicz
77b9288197 Staging: rtl8192su: convert to net_device_ops
commit e3804cbebb removed
COMPAT_NET_DEV_OPS so this change is needed to make rtl8192su
buildable again.

Loosely based on Alexander's patch for rtl8187se, untested.

Cc: Alexander Beregalov <a.beregalov@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:45 -07:00
Bill Pemberton
35e2bed559 Staging: serqt_usb2: declare qt_open static in serqt_usb2
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:45 -07:00
Bill Pemberton
d9dea3c1c0 Staging: serqt_usb2: fix qt_close parameters in serqt_usb2
The parameter list for qt_close() was from the old non usb-serial
driver.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:45 -07:00
Alexander Beregalov
9b5de0a0a7 Staging: comedi: jr3_pci.c: add required includes
Fix this build errors:
jr3_pci.c:739: error: 'jiffies' undeclared
jr3_pci.c:748: error: implicit declaration of function 'msecs_to_jiffies'
jr3_pci.c:763: error: implicit declaration of function 'add_timer'
jr3_pci.c:790: error: implicit declaration of function 'init_timer'
jr3_pci.c:951: error: implicit declaration of function 'del_timer_sync'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:45 -07:00
Greg Kroah-Hartman
e5a85d2179 Staging: meilhaus: add email address to TODO
Meilhaus Support also wants to be notified of changes to these drivers.

Cc: David Kiliani <mail@davidkiliani.de>
Cc: Meilhaus Support <support@meilhaus.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:44 -07:00
Pete Zaitcev
aea0d43bde Staging: rspiusb: use NULL virtual address instead of a bogus one
The main problem here is that I just cannot see how this could ever
be correct:

	usb_fill_bulk_urb(pdx->PixelUrb[frameInfo][i], pdx->udev, epAddr,
		(dma_addr_t *) sg_dma_address(&pdx->sgl[frameInfo][i]),
 		sg_dma_len(&pdx->sgl[frameInfo][i]),

You cannot take a DMA address, cast it to a _pointer to_ a DMA address,
and then regard it as a virtual address of the transfer buffer.
However, finding the right virtual address was too hard for me,
so I just stubbed it with NULL. At least usbmon won't oops then
(it will not show any data but it's better than crashing).

Also, too big a buffer was allocated elsewhere.

And since we're at it, drop clearly unnecessary usb_buffer_alloc too,
leaving it where it may be useful.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:44 -07:00
Alan Cox
f408adeb51 Staging: vt6655: compile fix
At least make it compile

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:44 -07:00
Jorrit Schippers
8dfb005718 Staging: rt2870: Add USB ID for Sitecom WL-608
Add the USB id 0x0DF6,0x003F to the rt2870.h file such that the
Sitecom WL-608 device will be recognized by this driver.

Signed-off-by: Jorrit Schippers <jorrit@ncode.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:21:44 -07:00
Alexander Beregalov
38c7dc3730 wm97xx_batery: replace driver_data with dev_get_drvdata()
direct access of driver_data is going away.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:10 -07:00
Greg Kroah-Hartman
5e9a8bd657 omap: video: remove direct access of driver_data
dev_set/get_drvdata() should be used instead, as driver_data is going
away.


Cc: Imre Deak <imre.deak@nokia.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Trilok Soni <soni.trilok@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Contreras <felipe.contreras@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:10 -07:00
Greg Kroah-Hartman
864e1e8db4 Sound: remove direct access of driver_data
This is the last in-kernel direct usage of driver_data, replace it with
the proper dev_get/set_drvdata() calls.

Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jaroslav Kysela <perex@perex.cz>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:10 -07:00
vibi sreenivasan
909662e1e7 driver model: fix show/store prototypes in doc.
FIX prototypes for show & store method in struct driver_attribute

Signed-off-by: vibi sreenivasan <vibi_sreenivasan@cms.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:10 -07:00
Jiri Slaby
308975fa7a Firmware: firmware_class, fix lock imbalance
Add omitted unlock in firmware_data_read.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:10 -07:00
Kay Sievers
4ead0a2b6b Driver Core: remove BUS_ID_SIZE
The name size limit is gone from the driver-core, this is
the removal of the last left-over.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:10 -07:00
Kay Sievers
08f42877af sparc: remove driver-core BUS_ID_SIZE
The name size limit is gone from the driver-core, the BUS_ID_SIZE
value will be removed.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:09 -07:00
Heiko Carstens
f8c73c790c partitions: fix broken uevent_suppress conversion
git commit f67f129e "Driver core: implement uevent suppress in kobject"
contains this chunk for fs/partitions/check.c:

 	/* suppress uevent if the disk supresses it */
-	if (!ddev->uevent_suppress)
+	if (!dev_get_uevent_suppress(pdev))
 		kobject_uevent(&pdev->kobj, KOBJ_ADD);

However that should have been

-	if (!ddev->uevent_suppress)
+	if (!dev_get_uevent_suppress(ddev))

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ming Lei <tom.leiming@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:09 -07:00
Benjamin Herrenschmidt
eb8d3c604f devres: WARN() and return, don't crash on device_del() of uninitialized device
I just debugged an obscure crash caused by a device_del() of a all NULL'd
out struct device (in usb-serial) and found that a patch like this one would
have saved me time (in addition to improved chances of a bug report from
users hitting similar driver bugs).

[akpm@linux-foundation.org: cleanup]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 13:02:09 -07:00
Linus Torvalds
7638d5322b Merge branch 'kmemleak' of git://linux-arm.org/linux-2.6
* 'kmemleak' of git://linux-arm.org/linux-2.6:
  kmemleak: Remove alloc_bootmem annotations introduced in the past
  kmemleak: Add callbacks to the bootmem allocator
  kmemleak: Allow partial freeing of memory blocks
  kmemleak: Trace the kmalloc_large* functions in slub
  kmemleak: Scan objects allocated during a scanning episode
  kmemleak: Do not acquire scan_mutex in kmemleak_open()
  kmemleak: Remove the reported leaks number limitation
  kmemleak: Add more cond_resched() calls in the scanning thread
  kmemleak: Renice the scanning thread to +10
2009-07-12 12:24:35 -07:00
Artem Bityutskiy
dd0d9a46f5 AFS: Fix compilation warning
Fix the following warning:

  fs/afs/dir.c: In function 'afs_d_revalidate':
  fs/afs/dir.c:567: warning: 'fid.vnode' may be used uninitialized in this function
  fs/afs/dir.c:567: warning: 'fid.unique' may be used uninitialized in this function

by marking the 'fid' variable as an uninitialized_var.  The problem is
that gcc doesn't always manage to work out that fid is always set on the
path through the function that uses it.

Cc: linux-afs@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 12:24:07 -07:00
Alexey Dobriyan
405f55712d headers: smp_lock.h redux
* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 12:22:34 -07:00
Julien Tinnes
f9fabcb58a personality: fix PER_CLEAR_ON_SETID
We have found that the current PER_CLEAR_ON_SETID mask on Linux doesn't
include neither ADDR_COMPAT_LAYOUT, nor MMAP_PAGE_ZERO.

The current mask is READ_IMPLIES_EXEC|ADDR_NO_RANDOMIZE.

We believe it is important to add MMAP_PAGE_ZERO, because by using this
personality it is possible to have the first page mapped inside a
process running as setuid root.  This could be used in those scenarios:

 - Exploiting a NULL pointer dereference issue in a setuid root binary
 - Bypassing the mmap_min_addr restrictions of the Linux kernel: by
   running a setuid binary that would drop privileges before giving us
   control back (for instance by loading a user-supplied library), we
   could get the first page mapped in a process we control.  By further
   using mremap and mprotect on this mapping, we can then completely
   bypass the mmap_min_addr restrictions.

Less importantly, we believe ADDR_COMPAT_LAYOUT should also be added
since on x86 32bits it will in practice disable most of the address
space layout randomization (only the stack will remain randomized).

Signed-off-by: Julien Tinnes <jt@cr0.org>
Signed-off-by: Tavis Ormandy <taviso@sdf.lonestar.org>
Cc: stable@kernel.org
Acked-by: Christoph Hellwig <hch@infradead.org>
Acked-by: Kees Cook <kees@ubuntu.com>
Acked-by: Eugene Teo <eugene@redhat.com>
[ Shortened lines and fixed whitespace as per Christophs' suggestion ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 12:21:33 -07:00
Linus Torvalds
a137802ee8 Don't use '-fwrapv' compiler option: it's buggy in gcc-4.1.x
This causes kernel images that don't run init to completion with certain
broken gcc versions.

This fixes kernel bugzilla entry:
	http://bugzilla.kernel.org/show_bug.cgi?id=13012

I suspect the gcc problem is this:
	http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28230

Fix the problem by using the -fno-strict-overflow flag instead, which
not only does not exist in the known-to-be-broken versions of gcc (it
was introduced later than fwrapv), but seems to be much less disturbing
to gcc too: the difference in the generated code by -fno-strict-overflow
are smaller (compared to using neither flag) than when using -fwrapv.

Reported-by: Barry K. Nathan <barryn@pobox.com>
Pushed-by: Frans Pop <elendil@planet.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 11:25:04 -07:00
Sascha Hlusiak
f2ba025b20 sit: fix regression: do not release skb->dst before xmit
The sit module makes use of skb->dst in it's xmit function, so since
93f154b594 ("net: release dst entry in dev_hard_start_xmit()") sit
tunnels are broken, because the flag IFF_XMIT_DST_RELEASE is not
unset.

This patch unsets that flag for sit devices to fix this
regression.

Signed-off-by: Sascha Hlusiak <contact@saschahlusiak.de>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-11 20:30:52 -07:00
Eric Dumazet
e51a67a9c8 net: ip_push_pending_frames() fix
After commit 2b85a34e91
(net: No more expensive sock_hold()/sock_put() on each tx)
we do not take any more references on sk->sk_refcnt on outgoing packets.

I forgot to delete two __sock_put() from ip_push_pending_frames()
and ip6_push_pending_frames().

Reported-by: Emil S Tantilov <emils.tantilov@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Emil S Tantilov <emils.tantilov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-11 20:26:21 -07:00
Eric Dumazet
e912b1142b net: sk_prot_alloc() should not blindly overwrite memory
Some sockets use SLAB_DESTROY_BY_RCU, and our RCU code correctness
depends on sk->sk_nulls_node.next being always valid. A NULL
value is not allowed as it might fault a lockless reader.

Current sk_prot_alloc() implementation doesnt respect this hypothesis,
calling kmem_cache_alloc() with __GFP_ZERO. Just call memset() around
the forbidden field.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-11 20:26:19 -07:00