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Merge tag 'mfd-for-linus-3.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Pull second set of MFD fixes from Samuel Ortiz:
"This time we only have a one liner fixing an omap-usb build error."
* tag 'mfd-for-linus-3.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: Fix build breakage in omap-usb-host.c
Ben Hutchings pointed out that the validation in efivars was inadequate -
most obviously, an entry with size 0 would server as a DoS against the
kernel. Improve this based on his suggestions.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1) Fix regression that could cause a misdiagnosis, which in turn could
lead to an erroneous 3.0 Gbps -> 1.5 downshift, particularly when hotplug
and suspend/resume is involved.
2) Fix a regression that led to ata%d controller ids being numbered one
larger than in <= 3.4-rc3 (oh, the horror!). Controller ids should now be
as expected.
3) add some DT, PCI id's
4) ata/pata_arasan_cf: minor cpp fixing/cleaning
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Merge tag 'tag/upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
Pull libata fixes from Jeff Garzik:
1) Fix regression that could cause a misdiagnosis, which in turn could
lead to an erroneous 3.0 Gbps -> 1.5 downshift, particularly when hotplug
and suspend/resume is involved.
2) Fix a regression that led to ata%d controller ids being numbered one
larger than in <= 3.4-rc3 (oh, the horror!). Controller ids should now be
as expected.
3) add some DT, PCI id's
4) ata/pata_arasan_cf: minor cpp fixing/cleaning
* tag 'tag/upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
ata: ahci_platform: Add synopsys ahci controller in DT's compatible list
ata/pata_arasan_cf: Move arasan_cf_pm_ops out of #ifdef, #endif macros
libata: init ata_print_id to 0
ahci: Detect Marvell 88SE9172 SATA controller
libata: skip old error history when counting probe trials
Pull i2c embedded fixes from Wolfram Sang:
"Here are some typical i2c driver bugfixes for 3.4. Missed clock
handling, improper timeout fixes, hardware wrokarounds... All
patches have been in linux-next for a few days, too."
* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
i2c: mxs: disable QUEUE when sending is done
i2c: mxs: handle spurious interrupt
i2c-eg20t: Modify MODULE_AUTHOR's email address
i2c-eg20t: change timeout value 50msec to 1000msec
i2c: tegra: Add delay before resetting the controller after NACK
i2c: pnx: Disable clk in suspend
Pull drm fixes from Dave Airlie:
"Just some regression fixes from Ben along with a variable that gcc
failed to spot is uninitialised."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
nouveau: initialise has_optimus variable.
drm/nv10/gpio: fix thinko in mask for gpio lines 2-9
nvc0/fb: shut up PMFB interrupt after the first occurrence
drm/nouveau/hdmi: use correct hdmi regs for nvaa/nvac
drm/nouveau/bios: fix regression on some nv4x board
Pull networking fixes from David Miller:
1) Transfer padding was wrong for full-speed USB in ASIX driver, fix
from Ingo van Lil.
2) Propagate the negative packet offset fix into the PowerPC BPF JIT.
From Jan Seiffert.
3) dl2k driver's private ioctls were letting unprivileged tasks make
MII writes and other ugly bits like that. Fix from Jeff Mahoney.
4) Fix TX VLAN and RX packet drops in ucc_geth, from Joakim Tjernlund.
5) OOPS and network namespace fixes in IPVS from Hans Schillstrom and
Julian Anastasov.
6) Fix races and sleeping in locked context bugs in drop_monitor, from
Neil Horman.
7) Fix link status indication in smsc95xx driver, from Paolo Pisati.
8) Fix bridge netfilter OOPS, from Peter Huang.
9) L2TP sendmsg can return on error conditions with the socket lock
held, oops. Fix from Sasha Levin.
10) udp_diag should return meaningful values for socket memory usage,
from Shan Wei.
11) Eric Dumazet is so awesome he gets his own section:
Socket memory cgroup code (I never should have applied those
patches, grumble...) made erroneous changes to
sk_sockets_allocated_read_positive(). It was changed to
use percpu_counter_sum_positive (which requires BH disabling)
instead of percpu_counter_read_positive (which does not).
Revert back to avoid crashes and lockdep warnings.
Adjust the default tcp_adv_win_scale and tcp_rmem[2] values
to fix throughput regressions. This is necessary as a result
of our more precise skb->truesize tracking.
Fix SKB leak in netem packet scheduler.
12) New device IDs for various bluetooth devices, from Manoj Iyer,
AceLan Kao, and Steven Harms.
13) Fix command completion race in ipw2200, from Stanislav Yakovlev.
14) Fix rtlwifi oops on unload, from Larry Finger.
15) Fix hard_mtu when adjusting hard_header_len in smsc95xx driver.
From Stephane Fillod.
16) ehea driver registers it's IRQ before all the necessary state is
setup, resulting in crashes. Fix from Thadeu Lima de Souza
Cascardo.
17) Fix PHY connection failures in davinci_emac driver, from Anatolij
Gustschin.
18) Missing break; in switch statement in bluetooth's
hci_cmd_complete_evt(). Fix from Szymon Janc.
19) Fix queue programming in iwlwifi, from Johannes Berg.
20) Interrupt throttling defaults not being actually programmed into the
hardware, fix from Jeff Kirsher and Ying Cai.
21) TLAN driver SKB encoding in descriptor busted on 64-bit, fix from
Benjamin Poirier.
22) Fix blind status block RX producer pointer deref in TG3 driver, from
Matt Carlson.
23) Promisc and multicast are busted on ehea, fixes from Thadeu Lima de
Souza Cascardo.
24) Fix crashes in 6lowpan, from Alexander Smirnov.
25) tcp_complete_cwr() needs to be careful to not rewind the CWND to
ssthresh if ssthresh has the "infinite" value. Fix from Yuchung
Cheng.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
sungem: Fix WakeOnLan
tcp: change tcp_adv_win_scale and tcp_rmem[2]
net: l2tp: unlock socket lock before returning from l2tp_ip_sendmsg
drop_monitor: prevent init path from scheduling on the wrong cpu
usbnet: fix failure handling in usbnet_probe
usbnet: fix leak of transfer buffer of dev->interrupt
ucc_geth: Add 16 bytes to max TX frame for VLANs
net: ucc_geth, increase no. of HW RX descriptors
netem: fix possible skb leak
sky2: fix receive length error in mixed non-VLAN/VLAN traffic
sky2: propogate rx hash when packet is copied
net: fix two typos in skbuff.h
cxgb3: Don't call cxgb_vlan_mode until q locks are initialized
ixgbe: fix calling skb_put on nonlinear skb assertion bug
ixgbe: Fix a memory leak in IEEE DCB
igbvf: fix the bug when initializing the igbvf
smsc75xx: enable mac to detect speed/duplex from phy
smsc75xx: declare smsc75xx's MII as GMII capable
smsc75xx: fix phy interrupt acknowledge
smsc75xx: fix phy init reset loop
...
Fix OOPS seen in coretemp driver if the CPU core ID is too large
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix OOPS seen in coretemp driver if the CPU core ID is too large"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (coretemp) Increase CPU core limit
hwmon: (coretemp) fix oops on cpu unplug
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Support Department <support@connecttech.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
CC: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Adhir Ramjiawan <adhirramjiawan0@gmail.com>
CC: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Johan Hovold <jhovold@gmail.com>
CC: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
CC: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Johan Hovold <jhovold@gmail.com>
CC: Anton Samokhvalov <pg83@yandex.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Thomas Tuttle <ttuttle@chromium.org>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Rigbert Hamisch <rigbert@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Matthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
CC: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Donald Lee <donald@asix.com.tw>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Johan Hovold <jhovold@gmail.com>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Johan Hovold <jhovold@gmail.com>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Oliver Neukum <oneukum@suse.de>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Johan Hovold <jhovold@gmail.com>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
CC: Simon Arlott <simon@fire.lp0.eu>
CC: Andrew Worsley <amworsley@gmail.com>
CC: "Michał Wróbel" <michal.wrobel@flytronic.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Gary Brubaker <xavyer@ix.netcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Peter Berger <pberger@brimson.com>
CC: Al Borchers <alborchers@steinerpoint.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Lonnie Mendez <dignome@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Matthias Bruestle and Harald Welte <support@reiner-sct.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Preston Fick <preston.fick@silabs.com>
CC: Yuri Matylitski <ym@tekinsoft.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: Johan Hovold <jhovold@gmail.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dbg() was used a lot a long time ago to trace code flow. Now that we have
ftrace, this isn't needed at all, so remove these calls.
CC: William Greathouse <wgreathouse@smva.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This removes most of the dbg() calls, as they were just tracing calls,
and converts the remaining ones to dev_dbg().
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This converts the usage of dbg() to dev_dbg() where needed, and removed
a bunch of these calls where they were just "tracing" calls, which are
no longer needed.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It turns out that there are more cases than CONFIG_DEBUG_PAGEALLOC that
can have holes in the kernel address space: it seems to happen easily
with Xen, and it looks like the AMD gart64 code will also punch holes
dynamically.
Actually hitting that case is still very unlikely, so just do the
access, and take an exception and fix it up for the very unlikely case
of it being a page-crosser with no next page.
And hey, this abstraction might even help other architectures that have
other issues with unaligned word accesses than the possible missing next
page. IOW, this could do the byte order magic too.
Peter Anvin fixed a thinko in the shifting for the exception case.
Reported-and-tested-by: Jana Saout <jana@saout.de>
Cc: Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hi Greg,
Here's some xHCI fixes that should be queued for 3.5.
The first patch builds on Alan Stern's 3.4 patch to close the suspend and port
event race conditions. It's marked for 3.4 stable, since that's where Alan's
patch landed. The second patch fixes an incorrect error code that the xHCI
driver would return when an isochronous transfer error occurred.
The third and fourth patches fix issues seen on Intel xHCI host controllers.
The third patch fixes a dead port issue that was seen on the Panther Point
EHCI/xHCI host when CONFIG_USB_XHCI_HCD was turned off. The ports were being
switched over to xHCI, even though the xHCI driver was never even built. The
fourth patch adds support for the EHCI to xHCI port switchover for the upcoming
Intel Lynx Point chipset.
As I said, there's nothing here that's terribly urgent, and these patches can
wait a couple weeks for the 3.5 merge window.
Thanks,
Sarah Sharp
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Merge tag 'for-usb-next-2012-05-03' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next
xhci: isoc, Intel xHCI, and suspend races.
Hi Greg,
Here's some xHCI fixes that should be queued for 3.5.
The first patch builds on Alan Stern's 3.4 patch to close the suspend and port
event race conditions. It's marked for 3.4 stable, since that's where Alan's
patch landed. The second patch fixes an incorrect error code that the xHCI
driver would return when an isochronous transfer error occurred.
The third and fourth patches fix issues seen on Intel xHCI host controllers.
The third patch fixes a dead port issue that was seen on the Panther Point
EHCI/xHCI host when CONFIG_USB_XHCI_HCD was turned off. The ports were being
switched over to xHCI, even though the xHCI driver was never even built. The
fourth patch adds support for the EHCI to xHCI port switchover for the upcoming
Intel Lynx Point chipset.
As I said, there's nothing here that's terribly urgent, and these patches can
wait a couple weeks for the 3.5 merge window.
Thanks,
Sarah Sharp
The upcoming Intel Lynx Point chipset includes an xHCI host controller
that can have ports switched from the EHCI host controller, just like
the Intel Panther Point xHCI host. This time, ports from both EHCI
hosts can be switched to the xHCI host controller. The PCI config
registers to do the port switching are in the exact same place in the
xHCI PCI configuration registers, with the same semantics.
Hooray for shipping patches for next-gen hardware before the current gen
hardware is even available for purchase!
This patch should be backported to stable kernels as old as 3.0,
that contain commit 69e848c209
"Intel xhci: Support EHCI/xHCI port switching."
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
If the user chooses to say "no" to CONFIG_USB_XHCI_HCD on a system
with an Intel Panther Point chipset, the PCI quirks code or the EHCI
driver will switch the ports over to the xHCI host, but the xHCI driver
will never load. The ports will be powered off and seem "dead" to the
user.
Fix this by only switching the ports over if CONFIG_USB_XHCI_HCD is
either compiled in, or compiled as a module.
This patch should be backported to stable kernels as old as 3.0,
that contain commit 69e848c209
"Intel xhci: Support EHCI/xHCI port switching."
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Eric Anholt <eric.anholt@intel.com>
Reported-by: David Bein <d.bein@f5.com>
Cc: stable@vger.kernel.org
