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513356 commits

Author SHA1 Message Date
Eric Dumazet
b52e69217b tcp: md5: fix a typo in tcp_v4_md5_lookup()
Lookup key for tcp_md5_do_lookup() has to be taken
from addr_sk, not sk (which can be the listener)

Fixes: fd3a154a00 ("tcp: md5: get rid of tcp_v[46]_reqsk_md5_lookup()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 18:11:16 -04:00
Sean O. Stalley
55db3208f2 PCI: Read capability list as dwords, not bytes
Reading both the capability ID and "next" pointer at the same time lets us
parse the list with half the number of config reads.

Signed-off-by: Sean O. Stalley <sean.stalley@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-09 17:01:39 -05:00
David S. Miller
2e9095234d Merge branch 'xgbe-next'
Tom Lendacky says:

====================
amd-xgbe: AMD XGBE driver updates 2015-04-09

The following series of patches includes functional updates and changes
to the driver.

- Allow ethtool rx-frames coalescing to be changed while the device is up
- Consolidate initialization routine into the init function
- Add support for the TX watchdog timeout

This patch series is based on net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 17:35:37 -04:00
Lendacky, Thomas
a8373f1a60 amd-xgbe: Add support for the netdev Tx watchdog
Add support to be able to detect a hung Tx task by adding the netdev
ndo_tx_timeout function callback. Do not set the watchdog_timeo value
so as to use the system default time (currently 5 seconds).

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 17:35:37 -04:00
Lendacky, Thomas
b876382bac amd-xgbe: Move Rx mode configuration into init
Currently a call to configure the Rx mode (promiscuous mode, all
multicast mode, etc.) is made in xgbe_start separate from the xgbe_init
function. This call to set the Rx mode should be part of the xgbe_init
function so that calls to the init function don't have to be preceded
with calls to configure the Rx mode.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 17:35:37 -04:00
Lendacky, Thomas
8dee19e619 amd-xgbe: Allow rx-frames coalescing to be changed anytime
Currently the device must be down in order to update the rx-frames
coalescing setting because the interrupt indicator is set in the
descriptor data during initialization. Allow this setting to be changed
while the device is up by moving the interrupt decision into the
descriptor reset function and base the decision off of the supplied
descriptor index value.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 17:35:37 -04:00
Hubert Sokolowski
1e53d5bb88 net: Pass VLAN ID to rtnl_fdb_notify.
When an FDB entry is added or deleted the information about VLAN
is not passed to listening applications like 'bridge monitor fdb'.
With this patch VLAN ID is passed if it was set in the original
netlink message.

Also remove an unused bdev variable.

Signed-off-by: Hubert Sokolowski <hubert.sokolowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 17:30:58 -04:00
Eric Dumazet
b50edd7812 tcp: tcp_make_synack() should clear skb->tstamp
I noticed tcpdump was giving funky timestamps for locally
generated SYNACK messages on loopback interface.

11:42:46.938990 IP 127.0.0.1.48245 > 127.0.0.2.23850: S
945476042:945476042(0) win 43690 <mss 65495,nop,nop,sackOK,nop,wscale 7>

20:28:58.502209 IP 127.0.0.2.23850 > 127.0.0.1.48245: S
3160535375:3160535375(0) ack 945476043 win 43690 <mss
65495,nop,nop,sackOK,nop,wscale 7>

This is because we need to clear skb->tstamp before
entering lower stack, otherwise net_timestamp_check()
does not set skb->tstamp.

Fixes: 7faee5c0d5 ("tcp: remove TCP_SKB_CB(skb)->when")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 17:28:57 -04:00
Rafael J. Wysocki
b2d5fb97d3 Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle'
* pm-sleep:
  Revert "PM / hibernate: avoid unsafe pages in e820 reserved regions"

* pm-cpufreq:
  cpufreq: Schedule work for the first-online CPU on resume

* pm-cpuidle:
  cpuidle: ACPI: do not overwrite name and description of C0
  cpuidle: remove state_count field from struct cpuidle_device
2015-04-09 23:25:23 +02:00
Bjorn Helgaas
e3dc17a53f PCI: layerscape: Simplify platform_get_resource_byname() failure checking
devm_ioremap_resource() validates the resource it receives, so if we check
for devm_ioremap_resource() failure, we need not check for failure of the
preceding platform_get_resource().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-09 14:36:52 -05:00
Bjorn Helgaas
f76ea574d6 PCI: keystone: Don't dereference possible NULL pointer
Check for failure from platform_get_resource() (this check actually happens
inside devm_ioremap_resource()) before dereferencing the pointer returned
from platform_get_resource().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-09 14:34:10 -05:00
Jisheng Zhang
873581698d PCI: versatile: Check for devm_ioremap_resource() failures
Check for failure of devm_ioremap_resource().

devm_ioremap_resource() validates the resource it receives, so if we check
for devm_ioremap_resource() failure, we need not check for failure of the
preceding platform_get_resource().

[bhelgaas: changelog]
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-09 14:27:06 -05:00
Matthew Garrett
387d37577f PCI: Don't clear ASPM bits when the FADT declares it's unsupported
Communications with a hardware vendor confirm that the expected behaviour
on systems that set the FADT ASPM disable bit but which still grant full
PCIe control is for the OS to leave any BIOS configuration intact and
refuse to touch the ASPM bits.  This mimics the behaviour of Windows.

Signed-off-by: Matthew Garrett <mjg59@coreos.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-09 14:20:11 -05:00
Jesse Gross
b736a623bd udptunnels: Call handle_offloads after inserting vlan tag.
handle_offloads() calls skb_reset_inner_headers() to store
the layer pointers to the encapsulated packet. However, we
currently push the vlag tag (if there is one) onto the packet
afterwards. This changes the MAC header for the encapsulated
packet but it is not reflected in skb->inner_mac_header, which
breaks GSO and drivers which attempt to use this for encapsulation
offloads.

Fixes: 1eaa8178 ("vxlan: Add tx-vlan offload support.")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:56:32 -04:00
David S. Miller
ca69d7102f Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following patchset contains Netfilter updates for your net-next tree.
They are:

* nf_tables set timeout infrastructure from Patrick Mchardy.

1) Add support for set timeout support.

2) Add support for set element timeouts using the new set extension
   infrastructure.

4) Add garbage collection helper functions to get rid of stale elements.
   Elements are accumulated in a batch that are asynchronously released
   via RCU when the batch is full.

5) Add garbage collection synchronization helpers. This introduces a new
   element busy bit to address concurrent access from the netlink API and the
   garbage collector.

5) Add timeout support for the nft_hash set implementation. The garbage
   collector peridically checks for stale elements from the workqueue.

* iptables/nftables cgroup fixes:

6) Ignore non full-socket objects from the input path, otherwise cgroup
   match may crash, from Daniel Borkmann.

7) Fix cgroup in nf_tables.

8) Save some cycles from xt_socket by skipping packet header parsing when
   skb->sk is already set because of early demux. Also from Daniel.

* br_netfilter updates from Florian Westphal.

9) Save frag_max_size and restore it from the forward path too.

10) Use a per-cpu area to restore the original source MAC address when traffic
    is DNAT'ed.

11) Add helper functions to access physical devices.

12) Use these new physdev helper function from xt_physdev.

13) Add another nf_bridge_info_get() helper function to fetch the br_netfilter
    state information.

14) Annotate original layer 2 protocol number in nf_bridge info, instead of
    using kludgy flags.

15) Also annotate the pkttype mangling when the packet travels back and forth
    from the IP to the bridge layer, instead of using a flag.

* More nf_tables set enhancement from Patrick:

16) Fix possible usage of set variant that doesn't support timeouts.

17) Avoid spurious "set is full" errors from Netlink API when there are pending
    stale elements scheduled to be released.

18) Restrict loop checks to set maps.

19) Add support for dynamic set updates from the packet path.

20) Add support to store optional user data (eg. comments) per set element.

BTW, I have also pulled net-next into nf-next to anticipate the conflict
resolution between your okfn() signature changes and Florian's br_netfilter
updates.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:46:04 -04:00
David S. Miller
3ab1a30fbd Major changes:
iwlwifi:
 
 * some more work on LAR
 * fixes for UMAC scan
 * more work on debugging framework
 * more work for 8000 devices
 * cleanups and small bugfixes
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Merge tag 'wireless-drivers-next-for-davem-2015-04-09' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
Major changes:

iwlwifi:

* some more work on LAR
* fixes for UMAC scan
* more work on debugging framework
* more work for 8000 devices
* cleanups and small bugfixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:43:13 -04:00
David S. Miller
9399bdcbb5 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2015-04-09

1) Prohibit the use/abuse of the xfrm netlink interface on
   32/64 bit compatibility tasks. We need a full compat
   layer before we can allow this. From Fan Du.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:41:47 -04:00
David S. Miller
634d8ee4de Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:

====================
pull request (net): ipsec 2015-04-09

1) We dereferenced the xfrm outer_mode too early, larval
   SAs don't have it set. Move the dereference of the
   outer mode below the larval SA check to fix it.
   From Alexey Dobriyan.

2) Fix vti6 tunnel uninit on namespace crosssing.
   From Yao Xiwei.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:39:37 -04:00
Oliver Neukum
11f17ef315 usbnet: rename work handler
"kevent" is an extremely generic name that causes trouble
if debugging for work queues is used. So change it to
something clear.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:37:59 -04:00
Michael S. Tsirkin
37a9c502c0 PCI: Clarify policy for vendor IDs in pci.txt
Clarify pci.txt so it matches the "do not add new entries unless they are
shared between multiple drivers" comment in include/linux/pci_ids.h.

[bhelgaas: changelog, strengthen language]
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-09 13:34:02 -05:00
David S. Miller
6fb8c381a6 Merge branch 'dma_rmb_wmb'
Alexander Duyck says:

====================
Replace wmb()/rmb() with dma_wmb()/dma_rmb() where appropriate, round 2

More cleanup of drivers in order to start making use of dma_rmb and dma_wmb
calls.  This is another pass of what I would consider to be low hanging
fruit.  There may be other opportunities to make use of the barriers in the
Mellanox and Chelsio drivers but I didn't want to risk meddling with code I
was not completely familiar with so I am leaving that for future work.

I have revisited the Mellanox driver changes.  This time around I went only
for the sections with a clearly defined pattern.  For dma_wmb I used it
between accesses of the descriptor bits followed by owner or size.  For
dma_rmb I used it to replace rmb following a read of the ownership bit in
the descriptor.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:25:26 -04:00
Alexander Duyck
c335869fb9 e100: Use dma_rmb/wmb where appropriate
Reduce the CPU overhead for transmit and receive by using lightweight dma_
barriers instead of full barriers where they are applicable.

Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:25:26 -04:00
Alexander Duyck
67317166dd i40e/i40evf: Use dma_rmb where appropriate
Update i40e and i40evf to use dma_rmb.  This should improve performance by
decreasing the barrier overhead on strong ordered architectures.

Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:25:26 -04:00
Alexander Duyck
12b3375f39 mlx4/mlx5: Use dma_wmb/rmb where appropriate
This patch should help to improve the performance of the mlx4 and mlx5 on a
number of architectures.  For example, on x86 the dma_wmb/rmb equates out
to a barrer() call as the architecture is already strong ordered, and on
PowerPC the call works out to a lwsync which is significantly less expensive
than the sync call that was being used for wmb.

I placed the new barriers between any spots that seemed to be trying to
order memory/memory reads or writes, if there are any spots that involved
MMIO I left the existing wmb in place as the new barriers cannot order
transactions between coherent and non-coherent memories.

v2: Reduced the replacments to just the spots where I could clearly
    identify the usage pattern.

Cc: Amir Vadai <amirv@mellanox.com>
Cc: Ido Shamay <idos@mellanox.com>
Cc: Eli Cohen <eli@mellanox.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:25:25 -04:00
Alexander Duyck
019be1cff4 cxgb3/4/4vf: Update drivers to use dma_rmb/wmb where appropriate
Update the Chelsio Ethernet drivers to use the dma_rmb/wmb calls instead of
the full barriers in order to improve performance.

Cc: Santosh Raspatur <santosh@chelsio.com>
Cc: Hariprasad S <hariprasad@chelsio.com>
Cc: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:25:25 -04:00
Phil Reid
27015f8c17 stmmac: devm_reset_control_get can return PROBE_DEFER
In socfpga_dwmac_parse_data forward error code from devm_reset_control_get.
This gives the driver another chance to laod if altr,rst-mgr is loaded after
the network driver.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-09 14:11:19 -04:00
Varka Bhadram
23310f6f3a mac802154: fix transmission power datatype
Netlink attribute for the power is s8. But for the driver level
operations we are collection power level value into integer.
It has to be change to s8 from int.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-04-09 19:56:15 +02:00
Linus Torvalds
3cfb2f7976 PCI updates for v4.0:
Enumeration
     - Don't look for ACPI hotplug parameters if ACPI is disabled (Bjorn Helgaas)
 
   Resource management
     - Revert "sparc/PCI: Clip bridge windows to fit in upstream windows" (Bjorn Helgaas)
 
   AER
     - Avoid info leak in __print_tlp_header() (Rasmus Villemoes)
 
   PCI device hotplug
     - Add missing curly braces in cpci_configure_slot() (Dan Carpenter)
 
   ST Microelectronics SPEAr13xx host bridge driver
     - Drop __initdata from spear13xx_pcie_driver (Matwey V. Kornilov)
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Merge tag 'pci-v4.0-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Here are some fixes for v4.0.  I apologize for how late they are.  We
  were hoping for some better fixes, but couldn't get them polished in
  time.  These fix:

   - a Xen domU oops with PCI passthrough devices
   - a sparc T5 boot failure
   - a STM SPEAr13xx crash (use after initdata freed)
   - a cpcihp hotplug driver thinko
   - an AER thinko that printed stack junk

  Details:

  Enumeration
    - Don't look for ACPI hotplug parameters if ACPI is disabled (Bjorn Helgaas)

  Resource management
    - Revert "sparc/PCI: Clip bridge windows to fit in upstream windows" (Bjorn Helgaas)

  AER
    - Avoid info leak in __print_tlp_header() (Rasmus Villemoes)

  PCI device hotplug
    - Add missing curly braces in cpci_configure_slot() (Dan Carpenter)

  ST Microelectronics SPEAr13xx host bridge driver
    - Drop __initdata from spear13xx_pcie_driver (Matwey V. Kornilov)

* tag 'pci-v4.0-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  Revert "sparc/PCI: Clip bridge windows to fit in upstream windows"
  PCI: Don't look for ACPI hotplug parameters if ACPI is disabled
  PCI: cpcihp: Add missing curly braces in cpci_configure_slot()
  PCI/AER: Avoid info leak in __print_tlp_header()
  PCI: spear: Drop __initdata from spear13xx_pcie_driver
2015-04-09 10:17:44 -07:00
Michal Marek
0a1f00a1c8 kconfig: Do not print status messages in make -s mode
Add an -s option to the various frontends and pass it when make -s is
used. Also, use $(kecho) instead of @echo in the Makefile.

Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-04-09 17:44:34 +02:00
Dmitry M. Fedin
3dc8523fa7 ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support
Adds an entry for Creative USB X-Fi to the rc_config array in
mixer_quirks.c to allow use of volume knob on the device.
Adds support for newer X-Fi Pro card, known as "Model No. SB1095"
with USB ID "041e:3237"

Signed-off-by: Dmitry M. Fedin <dmitry.fedin@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-09 17:20:39 +02:00
Guenter Roeck
f83a9cb622 hwmon: (it87) Use feature macros on sio_data
Feature macros work on sio_data as well, so use them there.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-09 06:39:11 -07:00
Al Viro
64b4e2526d ocfs2: _really_ sync the right range
"ocfs2 syncs the wrong range" had been broken; prior to it the
code was doing the wrong thing in case of O_APPEND, all right,
but _after_ it we were syncing the wrong range in 100% cases.
*ppos, aka iocb->ki_pos is incremented prior to that point,
so we are always doing sync on the area _after_ the one we'd
written to.

Spotted by Joseph Qi <joseph.qi@huawei.com> back in January;
unfortunately, I'd missed his mail back then ;-/

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-09 07:18:48 -04:00
Ley Foon Tan
e3e29f990c nios2: add missing ptrace registers defines
These are all register available in nios2.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2015-04-09 18:28:05 +08:00
Andrey Ryabinin
b1f85c0fec backlight: da9052_bl: Terminate da9052_wled_ids array with empty element
Array of platform_device_id elements should be terminated
with empty element.

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-04-09 10:30:35 +01:00
Geert Uytterhoeven
c6f77bc2b3 backlight: 88pm860x_bl: Use of_get_child_by_name() instead of refcount hack
of_find_node_by_name() calls of_node_put() on its "from" parameter.
To counter this, pm860x_backlight_dt_init() calls of_node_get() first.

Use of_get_child_by_name() instead to get rid of the refcount hack.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-04-09 10:30:34 +01:00
Krzysztof Kozlowski
e554a99ee8 mfd: sec: Fix RTC alarm interrupt number on S2MPS11
The RTC on S2MPS11 is the same as S2MPS14. However interrupt numbers of
RTC alarms 0 and 1 were inversed between these two devices. So when
rtc-s5m driver requested S2MPS14_IRQ_RTCA0 interrupt, it matched to
S2MPS11_IRQ_RTCA1, not RTCA0.

Fix this by using consistent RTC alarm interrupt numbers and adding a
BUILD_BUG_ON for future generations.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-04-09 10:26:54 +01:00
Charles Keepax
dcbbcba926 mfd: wm5102: Remove registers for output 3R from readable list
The earpiece on 5102 is mono, thus there is no output 3R. Remove the
registers associated with the unused right channel from the readable
registers list.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-04-09 10:26:48 +01:00
Dmitry Torokhov
bb73370791 mfd: tps65010: Remove incorrect __exit markups
Even if bus is not hot-pluggable, the devices can be unbound from the
driver via sysfs, so we should not be using __exit annotations on
remove() methods. The only exception is drivers registered with
platform_driver_probe() which specifically disables sysfs bind/unbind
attributes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-04-09 10:26:40 +01:00
Bjorn Andersson
8d2f1a9d36 mfd: devicetree: bindings: Add Qualcomm RPM regulator subnodes
Add the regulator subnodes to the Qualcomm RPM MFD device tree bindings.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-04-09 10:26:26 +01:00
Ramakrishna Pallala
bdb01f7823 mfd: axp20x: Add support for extcon cell
This patch adds the mfd cell info for axp288 extcon device.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-04-09 10:26:15 +01:00
Andy Shevchenko
7271575788 mfd: lpc_ich: Sort IDs
The patch sorts IDs in the table for easier maintenance. There is no
functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-04-09 10:25:54 +01:00
Aravind Gopalakrishnan
b44915927c x86/iommu: Fix header comments regarding standard and _FINISH macros
The comment line regarding IOMMU_INIT and IOMMU_INIT_FINISH
macros is incorrect:

  "The standard vs the _FINISH differs in that the _FINISH variant
  will continue detecting other IOMMUs in the call list..."

It should be "..the *standard* variant will continue
detecting..."

Fix that. Also, make it readable while at it.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: konrad.wilk@oracle.com
Fixes: 6e96366933 ("x86, iommu: Update header comments with appropriate naming")
Link: http://lkml.kernel.org/r/1428508017-5316-1-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:56:31 +02:00
Denys Vlasenko
a37f34a325 x86/asm/entry/64: Reduce padding in execve stubs
execve stubs are 7 bytes only. Padding them to 16 bytes is a
waste.

   text	   data	    bss	    dec	    hex	filename
  12594	      0	      0	  12594	   3132	entry_64.o.before
  12530	      0	      0	  12530	   30f2	entry_64.o

Run-tested.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-8-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:31:26 +02:00
Denys Vlasenko
54a81e914b x86/asm/entry/64: Remove GET_THREAD_INFO() in ret_from_fork
It used to be used to check for _TIF_IA32, but the check has
been removed.

Remove GET_THREAD_INFO() too.

Run-tested.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-7-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:31:26 +02:00
Denys Vlasenko
66ad4efa51 x86/asm/entry/64: Simplify jumps in ret_from_fork
Replace
        test
        jz  1f
        jmp label
    1:

with
        test
        jnz label

Run-tested.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-6-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:31:25 +02:00
Denys Vlasenko
a30b0085f5 x86/asm/entry/64: Remove a redundant jump
Jumping to the very next instruction is not very useful:

        jmp label
    label:

Removing the jump.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-5-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:31:25 +02:00
Denys Vlasenko
772951c4e4 x86/asm/entry/64: Optimize [v]fork/clone stubs
Replace "call func; ret" with "jmp func".

Run-tested.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-4-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:31:25 +02:00
Denys Vlasenko
0f90fb979d x86/asm/entry: Zero EXTRA_REGS for stub32_execve() too
The change which affected how execve clears EXTRA_REGS missed
32-bit execve syscalls.

Fix this by using 64-bit execve stub epilogue for them too.

Run-tested.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-3-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:31:24 +02:00
Denys Vlasenko
05f1752d19 x86/asm/entry/64: Move stub_x32_execvecloser() to stub_execveat()
This is a preparatory patch for moving stub32_execve[at]() to this
file. It makes sense to have all execve stubs in one place, so
that they can reuse code.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-2-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:31:24 +02:00
Denys Vlasenko
31f0119b81 x86/asm/entry/64: Use common code for rt_sigreturn() epilogue
Similarly to stub_execve, we can reuse the epilogue in
stub_rt_sigreturn() and stub_x32_rt_sigreturn().

Add a comment explaining why we can't eliminage SAVE_EXTRA_REGS
here.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-09 10:31:24 +02:00