summaryrefslogtreecommitdiff
path: root/net/caif/Kconfig
blob: d3694953b1d79410cf02f5e78999813c7d39a09e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
#
# CAIF net configurations
#

menuconfig CAIF
	tristate "CAIF support"
	select CRC_CCITT
	default n
	---help---
	The "Communication CPU to Application CPU Interface" (CAIF) is a packet
	based connection-oriented MUX protocol developed by ST-Ericsson for use
	with its modems. It is accessed from user space as sockets (PF_CAIF).

	Say Y (or M) here if you build for a phone product (e.g. Android or
	MeeGo ) that uses CAIF as transport, if unsure say N.

	If you select to build it as module then CAIF_NETDEV also needs to be
	built as modules. You will also need to say yes to any CAIF physical
	devices that your platform requires.

	See Documentation/networking/caif for a further explanation on how to
	use and configure CAIF.

config  CAIF_DEBUG
	bool "Enable Debug"
	depends on CAIF
	default n
	---help---
	Enable the inclusion of debug code in the CAIF stack.
	Be aware that doing this will impact performance.
	If unsure say N.

config CAIF_NETDEV
	tristate "CAIF GPRS Network device"
	depends on CAIF
	default CAIF
	---help---
	Say Y if you will be using a CAIF based GPRS network device.
	This can be either built-in or a loadable module,
	If you select to build it as a built-in then the main CAIF device must
	also be a built-in.
	If unsure say Y.

config CAIF_USB
	tristate "CAIF USB support"
	depends on CAIF
	default n
	---help---
	Say Y if you are using CAIF over USB CDC NCM.
	This can be either built-in or a loadable module,
	If you select to build it as a built-in then the main CAIF device must
	also be a built-in.
	If unsure say N.
fbcon_blank+0x30f/0x350 do_unblank_screen+0xd2/0x1a0 vt_ioctl+0x507/0x12a0 tty_ioctl+0x355/0xc30 do_vfs_ioctl+0xa3/0x5e0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 - i915 unpin_work workqueue: intel_unpin_work_fn+0x58/0x140 [i915] process_one_work+0x1f1/0x480 worker_thread+0x48/0x4d0 kthread+0x101/0x140 and this patch purely papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/usb/wusbcore/wusbhc.c')