There is an unhandled corner case with the current check
which has recently been hit. The nbytes argument may be
large enough for the range being dumped to cross a
boundary between page-table mappings, and dump addresses
which are vmalloc'd in the neighboring mapping.
Check every address being dumped to see if its vmalloc'd,
not just the address passed to show_data().
CRs-Fixed: 625442
Change-Id: I255b093808177321f5202dcacea337ee333bfc63
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Memory-mapped IO address spaces cannot be safely dumped at will.
Some addresses may not be available (clocked, powered) at all times,
and may result in hangs or bus decode errors if accessed. Other
registers that are accessible may have read side-effects, and dumping
them may have adverse affects on stability or the functionality of
the affected peripheral.
Be safe, and skip dumping such addresses altogether.
CRs-Fixed: 625442
Change-Id: I4cfa75f027ededf841a0240715af0db385857cbe
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Unfortunately, I never committed the fix to a nasty oops which can
occur as a result of that commit:
------------[ cut here ]------------
kernel BUG at /home/olof/work/batch/include/linux/mm.h:414!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 490 Comm: killall5 Not tainted 3.11.0-rc3-00288-gabe0308 #53
task: e90acac0 ti: e9be8000 task.ti: e9be8000
PC is at special_mapping_fault+0xa4/0xc4
LR is at __do_fault+0x68/0x48c
This doesn't show up unless you do quite a bit of testing; a simple
boot test does not do this, so all my nightly tests were passing fine.
The reason for this is that install_special_mapping() expects the
page array to stick around, and as this was only inserting one page
which was stored on the kernel stack, that's why this was blowing up.
Change-Id: Ib2cf8c19833e17d8d145e29141d68aaefd4dc233
Reported-by: Olof Johansson <olof@lixom.net>
Tested-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Git-commit: e0d407564b532d978b03ceccebd224a05d02f111
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
CRs-fixed: 561044
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
If kuser helpers are not provided by the kernel, disable user access to
the vectors page. With the kuser helpers gone, there is no reason for
this page to be visible to userspace.
Change-Id: Ia00a34e7952552634ccb03ee038cf3d0ead88459
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Git-commit: a5463cd3435475386cbbe7b06e01292ac169d36f
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[joonwoop@codeaurora.org: fixed merge conflict]
CRs-fixed: 561044
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Move the signal handlers into a VDSO page rather than keeping them in
the vectors page. This allows us to place them randomly within this
page, and also map the page at a random location within userspace
further protecting these code fragments from ROP attacks. The new
VDSO page is also poisoned in the same way as the vector page.
Change-Id: Ic45bb26efb1f00de0a025d36fc15dbd6580dc7de
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Git-commit: 48be69a026b2c17350a5ef18a1959a919f60be7d
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[joonwoop@codeaurora.org: fixed merge conflict]
CRs-fixed: 561044
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Since commit 6a1c53124a the user writeable TLS register was zeroed to
prevent it from being used as a covert channel between two tasks.
There are more and more applications coming to Windows RT,
Wine could support them, but mostly they expect to have
the thread environment block (TEB) in TPIDRURW.
This patch preserves that register per thread instead of clearing it.
Unlike the TPIDRURO, which is already switched, the TPIDRURW
can be updated from userspace so needs careful treatment in the case that we
modify TPIDRURW and call fork(). To avoid this we must always read
TPIDRURW in copy_thread.
Change-Id: Ib1e25be7b9faa846ba5335aad2574e21a1246066
Signed-off-by: André Hentschel <nerv@dawncrow.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Git-commit: a4780adeefd042482f624f5e0d577bf9cdcbb760
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[joonwoop@codeaurora.org: fixed merge conflict]
CRs-fixed: 561044
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Make the debugfs node 'nohlt' readable.
It is a common use case to want to turn nohlt
on or off, but there is no way to see the current state.
Writing to nohlt increments or decrements its reference
counter, and does not absolutely set the state. By making
it readable, its current state can be checked so that
it can be determined if a write is needed to change the
state.
Change-Id: I08e327808299aef3e125f04bff8b6aad28d020cc
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
We see negative idle stats because of cpu dying without
cleaning up idle entry statistics. When a cpu is offline,
the most immediate thing you'd want to do is just call
into cpu_die() and not waste time calling notifier(IDLE_START).
CRs-Fixed: 414554
Change-Id: Iadc6a3ca39997e0ccf65d2a29b004e24b1b211a1
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Expose a read-only timer page to user-space to allow for a more
efficient implementation of gettimeofday in user-space.
Change-Id: Ibd6ce41f5f4ff9435e4bf4582ef5de721283d56b
Signed-off-by: Brent DeGraaf <bdegraaf@codeaurora.org>
If one process calls sys_reboot and that process then stops other
CPUs while those CPUs are within a spin_lock() region we can
potentially encounter a deadlock scenario like below.
CPU 0 CPU 1
----- -----
spin_lock(my_lock)
smp_send_stop()
send_IPI handle_IPI()
disable_preemption/irqs
while(1);
<PREEMPT>
spin_lock(my_lock) <--- Waits forever
We shouldn't attempt to run any other tasks after we send a stop
IPI to a CPU so disable preemption so that this task runs to
completion.
Change-Id: I528af0b4448433bd9d6ca12d6a0e2c422a55d4be
CRs-Fixed: 396169
Reported-by: Sundarajan Srinivasan <sundaraj@codeaurora.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
AU_LINUX_ANDROID_ICS.04.00.04.00.126 from msm-3.0.
First parent is from google/android-3.4.
* commit 'AU_LINUX_ANDROID_ICS.04.00.04.00.126': (8712 commits)
PRNG: Device tree entry for qrng device.
vidc:1080p: Set video core timeout value for Thumbnail mode
msm: sps: improve the debugging support in SPS driver
board-8064 msm: Overlap secure and non secure video firmware heaps.
msm: clock: Add handoff ops for 7x30 and copper XO clocks
msm_fb: display: Wait for external vsync before DTV IOMMU unmap
msm: Fix ciruclar dependency in debug UART settings
msm: gdsc: Add GDSC regulator driver for msm-copper
defconfig: Enable Mobicore Driver.
mobicore: Add mobicore driver.
mobicore: rename variable to lower case.
mobicore: rename folder.
mobicore: add makefiles
mobicore: initial import of kernel driver
ASoC: msm: Add SLIMBUS_2_RX CPU DAI
board-8064-gpio: Update FUNC for EPM SPI CS
msm_fb: display: Remove chicken bit config during video playback
mmc: msm_sdcc: enable the sanitize capability
msm-fb: display: lm2 writeback support on mpq platfroms
msm_fb: display: Disable LVDS phy & pll during panel off
...
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Based on a rough patch by frank.rowand@am.sony.com
Since ARM doesn't have an NMI (fiq's are not always available),
send an IPI to all other CPUs (current cpu prints the stack directly)
to capture a backtrace.
Change-Id: I8b163c8cec05d521b433ae133795865e8a33d4e2
Signed-off-by: Dima Zavin <dima@android.com>
If the console_lock was held while the system was rebooted, the messages
in the temporary logbuffer would not have propogated to all the console
drivers.
This force releases the console lock if it failed to be acquired.
Change-Id: I193dcf7b968be17966833e50b8b8bc70d5d9fe89
Signed-off-by: Dima Zavin <dima@android.com>
This is extremely useful in diagnosing remote crashes, and is based heavily
on original work by <md@google.com>.
Signed-off-by: San Mehat <san@google.com>
Cc: Michael Davidson <md@google.com>
[ARM] process: Use uber-safe probe_kernel_address() to read mem when dumping.
This prevents the dump from taking pagefaults / external aborts.
Signed-off-by: San Mehat <san@google.com>
Currently, show_regs calls __backtrace which does
nothing if CONFIG_FRAME_POINTER is not set. Switch to
dump_stack which handles both CONFIG_FRAME_POINTER and
CONFIG_ARM_UNWIND correctly.
__backtrace is now superseded by dump_stack in general
and show_regs was the last caller so remove __backtrace
as well.
Change-Id: I396677df8bc22bf28e4486f2bfb155c516a3d452
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Merge Upstream's stable 3.0.21 branch into msm-3.0
This consists 814 commits and some merge conflicts.
The merge conflicts are because of some local changes to
msm-3.0 as well as some conflicts between google's tree and
the upstream tree.
Conflicts:
arch/arm/kernel/head.S
drivers/bluetooth/ath3k.c
drivers/bluetooth/btusb.c
drivers/mmc/core/core.c
drivers/tty/serial/serial_core.c
drivers/usb/host/ehci-hub.c
drivers/usb/serial/qcserial.c
fs/namespace.c
fs/proc/base.c
Change-Id: I62e2edbe213f84915e27f8cd6e4f6ce23db22a21
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Pull more ARM updates from Russell King.
This got a fair number of conflicts with the <asm/system.h> split, but
also with some other sparse-irq and header file include cleanups. They
all looked pretty trivial, though.
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (59 commits)
ARM: fix Kconfig warning for HAVE_BPF_JIT
ARM: 7361/1: provide XIP_VIRT_ADDR for no-MMU builds
ARM: 7349/1: integrator: convert to sparse irqs
ARM: 7259/3: net: JIT compiler for packet filters
ARM: 7334/1: add jump label support
ARM: 7333/2: jump label: detect %c support for ARM
ARM: 7338/1: add support for early console output via semihosting
ARM: use set_current_blocked() and block_sigmask()
ARM: exec: remove redundant set_fs(USER_DS)
ARM: 7332/1: extract out code patch function from kprobes
ARM: 7331/1: extract out insn generation code from ftrace
ARM: 7330/1: ftrace: use canonical Thumb-2 wide instruction format
ARM: 7351/1: ftrace: remove useless memory checks
ARM: 7316/1: kexec: EOI active and mask all interrupts in kexec crash path
ARM: Versatile Express: add NO_IOPORT
ARM: get rid of asm/irq.h in asm/prom.h
ARM: 7319/1: Print debug info for SIGBUS in user faults
ARM: 7318/1: gic: refactor irq_start assignment
ARM: 7317/1: irq: avoid NULL check in for_each_irq_desc loop
ARM: 7315/1: perf: add support for the Cortex-A7 PMU
...
Merge Google's Android tree into msm-3.0
This consists of the following conflicts and 42 commits:
Conflicts:
drivers/mmc/core/bus.c
drivers/rtc/class.c
drivers/usb/gadget/android.c
Most of the conflicts stem from the changes made to the
local msm-3.0 branch.
commit 1f8c5cecfe
Author: Heiko Stuebner <heiko@sntech.de>
Date: Wed Feb 1 10:33:01 2012 -0800
Input: evdev - fix variable initialisation
Commit 509f87c5f5 (evdev - do not block waiting for an event if
fd
is nonblock) created a code path were it was possible to use retval
uninitialized.
This could lead to the xorg evdev input driver getting corrupt data
and refusing to work with log messages like
AUO-Pixcir touchscreen: Read error: Success
sg060_keys: Read error: Success
AUO-Pixcir touchscreen: Read error: Success
sg060_keys: Read error: Success
(for drivers auo-pixcir-ts and gpio-keys).
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
drivers/input/evdev.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
commit 4dc43d7079
Author: Arve Hjønnevåg <arve@android.com>
Date: Fri Oct 17 15:20:55 2008 -0700
Input: evdev - Add ioctl to block suspend while event queue is not empty.
Add an ioctl, EVIOCSSUSPENDBLOCK, to enable a wakelock that will block
suspend while the event queue is not empty. This allows userspace code to
process input events while the device appears to be asleep.
The current code holds the wakelock for up 5 seconds for every input
device and client. This can prevent suspend if sensor with a high data
rate is active, even when that sensor is not capable of waking the
device once it is suspended.
Change-Id: I624d66ef30a0b3abb543685c343382b8419b42b9
Signed-off-by: Arve Hjønnevåg <arve@android.com>
drivers/input/evdev.c | 53 +++++++++++++++++++++++++++++++++++++++++++-----
include/linux/input.h | 3 ++
2 files changed, 50 insertions(+), 6 deletions(-)
commit 7cc846069a
Author: Arve Hjønnevåg <arve@android.com>
Date: Mon Jan 23 17:15:45 2012 -0800
Input: evdev - Don't hold wakelock when no data is available to user-space
If there is no SYN_REPORT event in the buffer the buffer data is invisible
to user-space. The wakelock should not be held in this case.
Change-Id: Idae890ff0da8eb46a2cfce61a95b3a97252551ad
Signed-off-by: Arve Hjønnevåg <arve@android.com>
drivers/input/evdev.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
commit 0e80804a2e
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Tue Jan 31 11:06:23 2012 -0800
net: wireless: bcmdhd: Increase pm_notify callback priority
Make pm_notify callback to be called the first on suspend/resume path to
ensure it will always be called.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_linux.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
commit dfc896e1c8
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon Jan 30 15:43:31 2012 -0800
net: wireless: bcmdhd: Fix crash on dhdsdio_probe_attach() failure
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_linux.c | 17 ++++++++++++++---
drivers/net/wireless/bcmdhd/dhd_sdio.c | 8 +++++++-
2 files changed, 21 insertions(+), 4 deletions(-)
commit 256a6b23be
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon Jan 30 13:03:19 2012 -0800
net: wireless: bcmdhd: Daemonize wl_event_handler
Daemonizing makes thread (besides other things) NON-FREEZABLE, and it will not
get fake signal on suspend to quicl down_interruptible()
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_linux.c | 13 -------------
drivers/net/wireless/bcmdhd/include/linuxver.h | 12 ++++++++++++
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 3 +++
3 files changed, 15 insertions(+), 13 deletions(-)
commit ff93146589
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Tue Jan 24 13:59:40 2012 -0800
net: wireless: bcmdhd: Update to Version 5.90.195.23
- WFD fixes
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_cfg80211.c | 269 -------------------------
drivers/net/wireless/bcmdhd/dhd_linux.c | 2 +-
drivers/net/wireless/bcmdhd/dhd_sdio.c | 8 +-
drivers/net/wireless/bcmdhd/include/epivers.h | 8 +-
drivers/net/wireless/bcmdhd/siutils.c | 5 +
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 223 +++++++++++++++------
drivers/net/wireless/bcmdhd/wl_cfgp2p.c | 175 ++++++++++++++++-
drivers/net/wireless/bcmdhd/wl_cfgp2p.h | 37 ++--
8 files changed, 368 insertions(+), 359 deletions(-)
commit 96034c2006
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Tue Jan 24 13:55:00 2012 -0800
net: wireless: bcmdhd: Update to Version 5.90.195.22
- Disable Ad-hoc support for cfg80211
- dhd_linux.c: Fix incorrect pid check
- Merge Android changes from Android tree
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/bcmsdh_linux.c | 24 ++------------------
drivers/net/wireless/bcmdhd/bcmsdh_sdmmc_linux.c | 25 +++++++++++++++------
drivers/net/wireless/bcmdhd/dhd_linux.c | 10 ++++----
drivers/net/wireless/bcmdhd/dhd_sdio.c | 11 +++++++--
drivers/net/wireless/bcmdhd/hndpmu.c | 16 ++++++++++++++
drivers/net/wireless/bcmdhd/include/bcmdevs.h | 2 +
drivers/net/wireless/bcmdhd/include/epivers.h | 8 +++---
drivers/net/wireless/bcmdhd/siutils.c | 3 ++
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 11 ++++++++-
9 files changed, 68 insertions(+), 42 deletions(-)
commit 494661a1ac
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Tue Jan 24 13:47:47 2012 -0800
net: wireless: bcmdhd: Update to Version 5.90.195.19
- Add WFD changes
- Add extra locking for internal ioctl operations
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/Makefile | 4 +-
drivers/net/wireless/bcmdhd/bcmsdh_linux.c | 25 +-
drivers/net/wireless/bcmdhd/bcmsdh_sdmmc.c | 4 +-
drivers/net/wireless/bcmdhd/dhd.h | 10 +-
drivers/net/wireless/bcmdhd/dhd_cdc.c | 7 +-
drivers/net/wireless/bcmdhd/dhd_cfg80211.c | 862 ++++++++
drivers/net/wireless/bcmdhd/dhd_cfg80211.h | 42 +
drivers/net/wireless/bcmdhd/dhd_common.c | 7 +-
drivers/net/wireless/bcmdhd/dhd_linux.c | 103 +-
drivers/net/wireless/bcmdhd/dhd_linux_mon.c | 409 ----
drivers/net/wireless/bcmdhd/dhd_sdio.c | 4 +-
drivers/net/wireless/bcmdhd/include/dhdioctl.h | 3 +-
drivers/net/wireless/bcmdhd/include/epivers.h | 8 +-
drivers/net/wireless/bcmdhd/include/proto/802.11.h | 12 +-
drivers/net/wireless/bcmdhd/include/wlioctl.h | 19 +-
drivers/net/wireless/bcmdhd/wl_android.c | 22 +-
drivers/net/wireless/bcmdhd/wl_android.h | 2 +-
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 2142 ++++++--------------
drivers/net/wireless/bcmdhd/wl_cfg80211.h | 125 +-
drivers/net/wireless/bcmdhd/wl_cfgp2p.c | 245 ++-
drivers/net/wireless/bcmdhd/wl_cfgp2p.h | 27 +-
drivers/net/wireless/bcmdhd/wl_linux_mon.c | 409 ++++
drivers/net/wireless/bcmdhd/wldev_common.c | 69 +-
drivers/net/wireless/bcmdhd/wldev_common.h | 20 +-
24 files changed, 2485 insertions(+), 2095 deletions(-)
commit 1dddb0cc0d
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Tue Jan 24 13:37:34 2012 -0800
net: wireless: bcmdhd: Update to Version 5.90.195.15
- Add WFD concurrent mode support
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/bcmevent.c | 8 +-
drivers/net/wireless/bcmdhd/bcmsdh_sdmmc_linux.c | 12 +-
drivers/net/wireless/bcmdhd/bcmutils.c | 4 +-
drivers/net/wireless/bcmdhd/dhd.h | 25 +-
drivers/net/wireless/bcmdhd/dhd_cdc.c | 9 +-
drivers/net/wireless/bcmdhd/dhd_common.c | 4 +-
drivers/net/wireless/bcmdhd/dhd_linux.c | 148 +++--
drivers/net/wireless/bcmdhd/dhd_linux_mon.c | 28 +-
drivers/net/wireless/bcmdhd/dhd_sdio.c | 27 +-
drivers/net/wireless/bcmdhd/dhd_wlfc.h | 12 +-
drivers/net/wireless/bcmdhd/hndpmu.c | 44 +-
drivers/net/wireless/bcmdhd/include/Makefile | 2 +-
drivers/net/wireless/bcmdhd/include/aidmp.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmcdc.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmdefs.h | 37 +-
drivers/net/wireless/bcmdhd/include/bcmdevs.h | 573 +++++++++++++-
drivers/net/wireless/bcmdhd/include/bcmendian.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmpcispi.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmperf.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmsdbus.h | 10 +-
drivers/net/wireless/bcmdhd/include/bcmsdh.h | 10 +-
drivers/net/wireless/bcmdhd/include/bcmsdh_sdmmc.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmsdpcm.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmsdspi.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmsdstd.h | 34 +-
drivers/net/wireless/bcmdhd/include/bcmspi.h | 2 +-
drivers/net/wireless/bcmdhd/include/bcmutils.h | 14 +-
drivers/net/wireless/bcmdhd/include/bcmwifi.h | 2 +-
drivers/net/wireless/bcmdhd/include/dhdioctl.h | 2 +-
drivers/net/wireless/bcmdhd/include/epivers.h | 14 +-
drivers/net/wireless/bcmdhd/include/hndpmu.h | 2 +-
.../net/wireless/bcmdhd/include/hndrte_armtrap.h | 2 +-
drivers/net/wireless/bcmdhd/include/hndrte_cons.h | 2 +-
drivers/net/wireless/bcmdhd/include/hndsoc.h | 2 +-
drivers/net/wireless/bcmdhd/include/htsf.h | 2 +-
drivers/net/wireless/bcmdhd/include/linux_osl.h | 2 +-
drivers/net/wireless/bcmdhd/include/linuxver.h | 6 +-
drivers/net/wireless/bcmdhd/include/miniopt.h | 2 +-
drivers/net/wireless/bcmdhd/include/msgtrace.h | 2 +-
drivers/net/wireless/bcmdhd/include/osl.h | 2 +-
.../wireless/bcmdhd/include/packed_section_end.h | 2 +-
.../wireless/bcmdhd/include/packed_section_start.h | 2 +-
drivers/net/wireless/bcmdhd/include/pcicfg.h | 28 +-
drivers/net/wireless/bcmdhd/include/proto/802.11.h | 317 +++++++-
.../net/wireless/bcmdhd/include/proto/802.11_bta.h | 2 +-
.../net/wireless/bcmdhd/include/proto/802.11e.h | 2 +-
drivers/net/wireless/bcmdhd/include/proto/802.1d.h | 2 +-
drivers/net/wireless/bcmdhd/include/proto/bcmeth.h | 2 +-
.../net/wireless/bcmdhd/include/proto/bcmevent.h | 9 +-
drivers/net/wireless/bcmdhd/include/proto/bcmip.h | 2 +-
.../net/wireless/bcmdhd/include/proto/bt_amp_hci.h | 2 +-
drivers/net/wireless/bcmdhd/include/proto/eapol.h | 2 +-
.../net/wireless/bcmdhd/include/proto/ethernet.h | 3 +-
drivers/net/wireless/bcmdhd/include/proto/p2p.h | 2 +-
drivers/net/wireless/bcmdhd/include/proto/sdspi.h | 2 +-
drivers/net/wireless/bcmdhd/include/proto/vlan.h | 2 +-
drivers/net/wireless/bcmdhd/include/proto/wpa.h | 12 +-
drivers/net/wireless/bcmdhd/include/sbchipc.h | 168 ++++-
drivers/net/wireless/bcmdhd/include/sbconfig.h | 2 +-
drivers/net/wireless/bcmdhd/include/sbhnddma.h | 6 +-
drivers/net/wireless/bcmdhd/include/sbpcmcia.h | 2 +-
drivers/net/wireless/bcmdhd/include/sbsdio.h | 2 +-
drivers/net/wireless/bcmdhd/include/sbsdpcmdev.h | 2 +-
drivers/net/wireless/bcmdhd/include/sbsocram.h | 2 +-
drivers/net/wireless/bcmdhd/include/sdio.h | 5 +-
drivers/net/wireless/bcmdhd/include/sdioh.h | 32 +-
drivers/net/wireless/bcmdhd/include/sdiovar.h | 2 +-
drivers/net/wireless/bcmdhd/include/siutils.h | 30 +-
drivers/net/wireless/bcmdhd/include/trxhdr.h | 3 +-
drivers/net/wireless/bcmdhd/include/typedefs.h | 5 +-
drivers/net/wireless/bcmdhd/include/wlfc_proto.h | 2 +-
drivers/net/wireless/bcmdhd/include/wlioctl.h | 87 ++-
drivers/net/wireless/bcmdhd/linux_osl.c | 23 +-
drivers/net/wireless/bcmdhd/siutils.c | 195 +++++-
drivers/net/wireless/bcmdhd/wl_android.c | 6 +-
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 875 ++++++++++++--------
drivers/net/wireless/bcmdhd/wl_cfg80211.h | 282 +++++---
drivers/net/wireless/bcmdhd/wl_cfgp2p.c | 165 ++++-
drivers/net/wireless/bcmdhd/wl_cfgp2p.h | 12 +-
drivers/net/wireless/bcmdhd/wl_iw.c | 110 +++-
drivers/net/wireless/bcmdhd/wl_iw.h | 17 +-
81 files changed, 2737 insertions(+), 752 deletions(-)
commit 52bdb6f543
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon Jan 23 12:47:21 2012 -0800
net: wireless: bcmdhd: Add WIPHY_FLAG_SUPPORTS_FW_ROAM flag
Adding this flag will allow NL80211_ATTR_ROAM_SUPPORT, and will set
WPA_DRIVER_FLAGS_BSS_SELECTION flag in wpa_supplicant
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
commit b1a94205e9
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Fri Jan 20 14:15:05 2012 -0800
net: wireless: bcmdhd: Fake PNO event to wake up the wpa_supplicant
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_linux.c | 4 +++-
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 20 ++++++++++++++++----
2 files changed, 19 insertions(+), 5 deletions(-)
commit 09701e3edf
Author: Scott Anderson <saa@google.com>
Date: Wed Jan 18 15:56:51 2012 -0800
usb: gadget: android: Honor CONFIG_USB_GADGET_VBUS_DRAW
The maximum current draw was hard coded to 500 mA. composite.c
has code that uses CONFIG_USB_GADGET_VBUS_DRAW to set the
bMaxPower and to set whether or not the device is self-powered if
they haven't been set. This change removes the code in android.c
to allow composite.c to set them.
Change-Id: I9db37922e91ee86e9e5c0e14519e119e5c41ca48
Signed-off-by: Scott Anderson <saa@google.com>
drivers/usb/gadget/android.c | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
commit a6ccb73389
Author: Benoit Goby <benoit@android.com>
Date: Fri Jan 20 14:42:41 2012 -0800
usb: gadget: Fix usb string id allocation
Don't reset next_string_id every time the gadget is enabled, this makes
the next strings allocated overwrite strings allocated at probe time.
Instead, fix rndis not to allocate new string ids on every config bind.
Change-Id: Ied28ee416bb6f00c434c34176fe5b7f0dcb2b2d4
Signed-off-by: Benoit Goby <benoit@android.com>
drivers/usb/gadget/android.c | 1 -
drivers/usb/gadget/f_rndis.c | 12 +++++-------
drivers/usb/gadget/rndis.c | 11 +++++++++++
3 files changed, 16 insertions(+), 8 deletions(-)
commit 87159de9c3
Author: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Thu Aug 11 11:46:22 2011 +0300
nl80211/cfg80211: Make addition of new sinfo fields safer
Add a comment pointing out the use of enum station_info_flags for
all new struct station_info fields. In addition, memset the sinfo
buffer to zero before use on all paths in the current tree to avoid
leaving uninitialized pointers in the data.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
include/net/cfg80211.h | 5 +++++
net/mac80211/sta_info.c | 1 +
net/wireless/nl80211.c | 1 +
3 files changed, 7 insertions(+), 0 deletions(-)
commit d692df224b
Author: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Mon Aug 8 12:11:52 2011 +0300
cfg80211/nl80211: Send AssocReq IEs to user space in AP mode
When user space SME/MLME (e.g., hostapd) is not used in AP mode, the
IEs from the (Re)Association Request frame that was processed in
firmware need to be made available for user space (e.g., RSN IE for
hostapd). Allow this to be done with cfg80211_new_sta().
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
include/net/cfg80211.h | 8 ++++++++
net/wireless/nl80211.c | 4 ++++
2 files changed, 12 insertions(+), 0 deletions(-)
commit d1e94136fc
Author: Dima Zavin <dima@android.com>
Date: Mon Jan 23 10:39:02 2012 -0800
misc: remove android pmem driver, it's obsolete.
Change-Id: I48d9778007e1e9eed2bb34e33ceee818c23afaa5
Signed-off-by: Dima Zavin <dima@android.com>
drivers/misc/Kconfig | 4 -
drivers/misc/Makefile | 1 -
drivers/misc/pmem.c | 1345 ------------------------------------------
include/linux/android_pmem.h | 93 ---
4 files changed, 0 insertions(+), 1443 deletions(-)
commit dac306d896
Author: Dima Zavin <dima@android.com>
Date: Thu Jan 19 09:51:07 2012 -0800
Revert "proc: enable writing to /proc/pid/mem"
This reverts commit 198214a7ee.
fs/proc/base.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
commit a65e28a014
Author: Dima Zavin <dima@android.com>
Date: Thu Jan 12 15:55:25 2012 -0800
ram_console: set CON_ANYTIME console flag
We want to ensure that we get all the console messages, even ones
that occur while the printing CPU is not yet online.
Change-Id: I1d2694d05ac9415669a92f38efdd8e71c927705b
Signed-off-by: Dima Zavin <dima@android.com>
drivers/staging/android/ram_console.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
commit f16e6fb3e3
Author: Benoit Goby <benoit@android.com>
Date: Thu Dec 15 18:40:37 2011 -0800
Revert "usb: gadget: rndis: don't use dev_get_stats"
This reverts commit ffdab0c0c4.
Not needed anymore in 2.6.39 and 3.0, dev_get_stats has been fixed
and may be called from atomic context. See:
1ac9ad1 net: remove dev_txq_stats_fold()
drivers/usb/gadget/rndis.c | 23 ++---------------------
1 files changed, 2 insertions(+), 21 deletions(-)
commit e1493f1544
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon Dec 19 10:24:09 2011 -0800
net: wireless: bcmdhd: Enable wlan access on resume for all sdio functions
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/bcmsdh_sdmmc_linux.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
commit bbd08c6e95
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Fri Dec 16 12:54:51 2011 -0800
net: wireless: bcmdhd: Fix P2P interface removal
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_linux.c | 3 ++
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 43 ++++++++++++++++++++++-------
drivers/net/wireless/bcmdhd/wl_cfg80211.h | 9 ++++--
3 files changed, 42 insertions(+), 13 deletions(-)
commit 37ff4411a5
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Thu Dec 15 12:12:20 2011 -0800
net: wireless: bcm4329: Fix pno_enable if disassociated
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcm4329/dhd_common.c | 43 ++++++++++++++++++++++++-----
1 files changed, 36 insertions(+), 7 deletions(-)
commit 599c8566fa
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Tue Dec 13 17:39:48 2011 -0800
net: wireless: bcmdhd: Fix proper scan command even if request is NULL
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 16 ++++++++++------
1 files changed, 10 insertions(+), 6 deletions(-)
commit f227b88c89
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Tue Dec 13 12:27:49 2011 -0800
net: wireless: bcmdhd: Decrease event wake_lock timeout to 1500 ms
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd.h | 4 ++--
drivers/net/wireless/bcmdhd/dhd_linux.c | 8 ++++----
drivers/net/wireless/bcmdhd/wl_iw.c | 2 +-
3 files changed, 7 insertions(+), 7 deletions(-)
commit ed3f356087
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon Dec 12 15:40:33 2011 -0800
net: wireless: bcmdhd: Fix getting arp_hostip table
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_common.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
commit c561cedf2b
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Tue Dec 6 16:27:37 2011 -0800
net: wireless: bcmdhd: Allow to push more packets to FW for Tx
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_sdio.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
commit 4f36cb88d6
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Fri Dec 2 13:24:01 2011 -0800
net: wireless: bcmdhd: Fix scan crash in ibss mode
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
commit af16732d4c
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Fri Dec 2 13:10:47 2011 -0800
net: wireless: bcmdhd: Add FW reloading in case of FW hang
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_linux.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
commit 7caeacd6ed
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Wed Nov 30 12:49:02 2011 -0800
net: wireless: bcmdhd: Update to Version 5.90.125.94.1
- Return zeroed private command buffer
- Fix memory leak in wl_inform_single_bss()
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/dhd_common.c | 5 +++--
drivers/net/wireless/bcmdhd/dhd_linux_mon.c | 10 ++++++----
drivers/net/wireless/bcmdhd/include/epivers.h | 2 +-
drivers/net/wireless/bcmdhd/wl_android.c | 9 ++++++---
drivers/net/wireless/bcmdhd/wl_cfg80211.c | 9 ++++++---
5 files changed, 22 insertions(+), 13 deletions(-)
commit 8d71d882e7
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Fri Nov 11 16:04:12 2011 -0800
net: wireless: bcmdhd: Use CONFIG_DHD_USE_STATIC_BUF for preallocated memory
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/net/wireless/bcmdhd/Kconfig | 7 +++
drivers/net/wireless/bcmdhd/bcmsdh_sdmmc.c | 16 ++++----
drivers/net/wireless/bcmdhd/dhd.h | 4 +-
drivers/net/wireless/bcmdhd/dhd_cdc.c | 4 +-
drivers/net/wireless/bcmdhd/dhd_linux.c | 4 +-
drivers/net/wireless/bcmdhd/dhd_sdio.c | 4 +-
drivers/net/wireless/bcmdhd/include/linux_osl.h | 2 +-
drivers/net/wireless/bcmdhd/linux_osl.c | 52 +++++++++++++----------
drivers/net/wireless/bcmdhd/wl_android.c | 7 ++-
9 files changed, 57 insertions(+), 43 deletions(-)
commit 35047200c4
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon Dec 19 12:32:21 2011 -0800
wireless: Protect regdomain change by mutex
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net/wireless/reg.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
commit ea693bf7f8
Author: Dmitry Shmidt <dimitrysh@google.com>
Date: Fri Dec 16 17:52:18 2011 -0800
mmc: Set suspend/resume bus operations if CONFIG_PM_RUNTIME is used
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
drivers/mmc/core/bus.c | 24 +++++++-----------------
1 files changed, 7 insertions(+), 17 deletions(-)
commit dc1b634039
Author: Benoit Goby <benoit@android.com>
Date: Fri Dec 9 18:05:00 2011 -0800
usb: gadget: android: Don't allow changing the functions list if enabled
Change-Id: I3ad39b420ce79a8602a7eca1daac1f56b30bad5c
Signed-off-by: Benoit Goby <benoit@android.com>
drivers/usb/gadget/android.c | 28 ++++++++++++++++++++++++----
1 files changed, 24 insertions(+), 4 deletions(-)
commit e0de0a507d
Author: Benoit Goby <benoit@android.com>
Date: Tue Nov 29 13:49:27 2011 -0800
usb: gadget: android: Cancel pending ctrlrequest before disabling
Make sure there is no pending ctrlrequest before removing the config.
Otherwise the ctrlrequest complete callback could access structures
after they have been freed. Unbind cancels pending transfers but not
ep0 requests.
Bug: 5513065 5440193
Change-Id: I063c22bf5d104a3d2df71cf622409459fac5f27a
Signed-off-by: Benoit Goby <benoit@android.com>
drivers/usb/gadget/android.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
commit b86fd0b622
Author: Colin Cross <ccross@android.com>
Date: Tue Nov 29 16:37:07 2011 -0800
ARM: idle: call idle notifiers before stopping nohz tick
If an idle notifier modifies a timer, calling the notifier after
the sched tick has been stopped may leave the sched tick set too
early. Move teh idle notifier call before the call to
tick_nohz_stop_sched_tick.
Change-Id: I0db3284bec6d0193bc5e2a57650ab06bd8342319
Signed-off-by: Colin Cross <ccross@android.com>
arch/arm/kernel/process.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
commit 6a4a38525d
Author: Benoit Goby <benoit@android.com>
Date: Mon Nov 28 18:01:03 2011 -0800
usb: gadget: android: Reset next_string_id before enable
Reset next_string_id to 0 before enabling the gadget driver. Otherwise,
after a large number of enable/disable cycles, bind will fail
because we cannot allocate new string ids. String ids cannot be larger
than 254 per USB spec.
Change-Id: I44f5fece45008b7a0a18c025d4eb5ce842585c28
Signed-off-by: Benoit Goby <benoit@android.com>
drivers/usb/gadget/android.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
commit dbb18fb2c1
Author: hyungseoung.yoo <hyungseoung.yoo@samsung.com>
Date: Fri Nov 18 13:57:01 2011 +0900
Bluetooth: Keep master role when SCO or eSCO is active
This improves compatbility with a lot of headset / chipset
combinations. Ideally this should not be needed.
Change-Id: I8b676701e12e416aa7d60801b9d353b15d102709
Signed-off-by: hyungseoung.yoo <hyungseoung.yoo@samsung.com>
Signed-off-by: Jaikumar Ganesh <jaikumarg@android.com>
net/bluetooth/hci_event.c | 12 +++++++++++-
1 files changed, 11 insertions(+), 1 deletions(-)
commit 9d187300df
Author: Arve Hjønnevåg <arve@android.com>
Date: Tue Nov 22 14:56:50 2011 -0800
rtc: Fix some bugs that allowed accumulating time drift in suspend/resume
The current code checks if abs(delta_delta.tv_sec) is greater or
equal to two before it discards the old delta value, but this can
trigger at close to -1 seconds since -1.000000001 seconds is stored
as tv_sec -2 and tv_nsec 999999999 in a normalized timespec.
rtc_resume had an early return check if the rtc value had not changed
since rtc_suspend. This effectivly stops time for the duration of the
short sleep. Check if sleep_time is positive after all the adjustments
have been applied instead since this allows the old_system adjustment
in rtc_suspend to have an effect even for short sleep cycles.
Change-Id: I00b45c0349ec91a4bab9b41a126b377515427898
Signed-off-by: Arve Hjønnevåg <arve@android.com>
drivers/rtc/class.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
commit 452d440ab2
Author: Arve Hjønnevåg <arve@android.com>
Date: Tue Nov 22 15:28:27 2011 -0800
Fix "time: Catch invalid timespec sleep values in __timekeeping_inject_sleeptime" to compile on 3.0
Change-Id: I1225f279cda04dedbfb7f853f6b58f1032bd6d2b
kernel/time/timekeeping.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
commit cf70c6a400
Author: John Stultz <john.stultz@linaro.org>
Date: Wed Jun 1 18:18:09 2011 -0700
time: Catch invalid timespec sleep values in __timekeeping_inject_sleeptime
Arve suggested making sure we catch possible negative sleep time
intervals that could be passed into timekeeping_inject_sleeptime.
CC: Arve Hjønnevåg <arve@android.com>
CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
kernel/time/timekeeping.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
commit 340ede3671
Author: John Stultz <john.stultz@linaro.org>
Date: Fri May 27 11:33:18 2011 -0700
rtc: Avoid accumulating time drift in suspend/resume
Because the RTC interface is only a second granular interface,
each time we read from the RTC for suspend/resume, we introduce a
half second (on average) of error.
In order to avoid this error accumulating as the system is suspended
over and over, this patch measures the time delta between the RTC
and the system CLOCK_REALTIME.
If the delta is less then 2 seconds from the last suspend, we compensate
by using the previous time delta (keeping it close). If it is larger
then 2 seconds, we assume the clock was set or has been changed, so we
do no correction and update the delta.
Note: If NTP is running, ths could seem to "fight" with the NTP corrected
time, where as if the system time was off by 1 second, and NTP slewed the
value in, a suspend/resume cycle could undo this correction, by trying to
restore the previous offset from the RTC. However, without this patch,
since each read could cause almost a full second worth of error, its
possible to get almost 2 seconds of error just from the suspend/resume
cycle alone, so this about equal to any offset added by the compensation.
Further on systems that suspend/resume frequently, this should keep time
closer then NTP could compensate for if the errors were allowed to
accumulate.
Credits to Arve Hjønnevåg for suggesting this solution.
This patch also improves some of the variable names and adds more clear
comments.
CC: Arve Hjønnevåg <arve@android.com>
CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
drivers/rtc/class.c | 65 +++++++++++++++++++++++++++++++++++++-------------
1 files changed, 48 insertions(+), 17 deletions(-)
Change-Id: I16f522e7ee2b301cbdaea62d52d50d7249f565c2
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Pull "Disintegrate and delete asm/system.h" from David Howells:
"Here are a bunch of patches to disintegrate asm/system.h into a set of
separate bits to relieve the problem of circular inclusion
dependencies.
I've built all the working defconfigs from all the arches that I can
and made sure that they don't break.
The reason for these patches is that I recently encountered a circular
dependency problem that came about when I produced some patches to
optimise get_order() by rewriting it to use ilog2().
This uses bitops - and on the SH arch asm/bitops.h drags in
asm-generic/get_order.h by a circuituous route involving asm/system.h.
The main difficulty seems to be asm/system.h. It holds a number of
low level bits with no/few dependencies that are commonly used (eg.
memory barriers) and a number of bits with more dependencies that
aren't used in many places (eg. switch_to()).
These patches break asm/system.h up into the following core pieces:
(1) asm/barrier.h
Move memory barriers here. This already done for MIPS and Alpha.
(2) asm/switch_to.h
Move switch_to() and related stuff here.
(3) asm/exec.h
Move arch_align_stack() here. Other process execution related bits
could perhaps go here from asm/processor.h.
(4) asm/cmpxchg.h
Move xchg() and cmpxchg() here as they're full word atomic ops and
frequently used by atomic_xchg() and atomic_cmpxchg().
(5) asm/bug.h
Move die() and related bits.
(6) asm/auxvec.h
Move AT_VECTOR_SIZE_ARCH here.
Other arch headers are created as needed on a per-arch basis."
Fixed up some conflicts from other header file cleanups and moving code
around that has happened in the meantime, so David's testing is somewhat
weakened by that. We'll find out anything that got broken and fix it..
* tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits)
Delete all instances of asm/system.h
Remove all #inclusions of asm/system.h
Add #includes needed to permit the removal of asm/system.h
Move all declarations of free_initmem() to linux/mm.h
Disintegrate asm/system.h for OpenRISC
Split arch_align_stack() out from asm-generic/system.h
Split the switch_to() wrapper out of asm-generic/system.h
Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h
Create asm-generic/barrier.h
Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h
Disintegrate asm/system.h for Xtensa
Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt]
Disintegrate asm/system.h for Tile
Disintegrate asm/system.h for Sparc
Disintegrate asm/system.h for SH
Disintegrate asm/system.h for Score
Disintegrate asm/system.h for S390
Disintegrate asm/system.h for PowerPC
Disintegrate asm/system.h for PA-RISC
Disintegrate asm/system.h for MN10300
...
The current user mapping for the vectors page is inserted as a `horrible
hack vma' into each task via arch_setup_additional_pages. This causes
problems with the MM subsystem and vm_normal_page, as described here:
https://lkml.org/lkml/2012/1/14/55
Following the suggestion from Hugh in the above thread, this patch uses
the gate_vma for the vectors user mapping, therefore consolidating
the horrible hack VMAs into one.
Acked-and-Tested-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Pull #1 ARM updates from Russell King:
"This one covers stuff which Arnd is waiting for me to push, as this is
shared between both our trees and probably other trees elsewhere.
Essentially, this contains:
- AMBA primecell device initializer updates - mostly shrinking the
size of the device declarations in platform code to something more
reasonable.
- Getting rid of the NO_IRQ crap from AMBA primecell stuff.
- Nicolas' idle cleanups. This in combination with the restart
cleanups from the last merge window results in a great many
mach/system.h files being deleted."
Yay: ~80 files, ~2000 lines deleted.
* 'for-armsoc' of git://git.linaro.org/people/rmk/linux-arm: (60 commits)
ARM: remove disable_fiq and arch_ret_to_user macros
ARM: make entry-macro.S depend on !MULTI_IRQ_HANDLER
ARM: rpc: make default fiq handler run-time installed
ARM: make arch_ret_to_user macro optional
ARM: amba: samsung: use common amba device initializers
ARM: amba: spear: use common amba device initializers
ARM: amba: nomadik: use common amba device initializers
ARM: amba: u300: use common amba device initializers
ARM: amba: lpc32xx: use common amba device initializers
ARM: amba: netx: use common amba device initializers
ARM: amba: bcmring: use common amba device initializers
ARM: amba: ep93xx: use common amba device initializers
ARM: amba: omap2: use common amba device initializers
ARM: amba: integrator: use common amba device initializers
ARM: amba: realview: get rid of private platform amba_device initializer
ARM: amba: versatile: get rid of private platform amba_device initializer
ARM: amba: vexpress: get rid of private platform amba_device initializer
ARM: amba: provide common initializers for static amba devices
ARM: amba: make use of -1 IRQs warn
ARM: amba: u300: get rid of NO_IRQ initializers
...
The motivation for this patchset was that I was looking at a way for a
qemu-kvm process, to exclude the guest memory from its core dump, which
can be quite large. There are already a number of filter flags in
/proc/<pid>/coredump_filter, however, these allow one to specify 'types'
of kernel memory, not specific address ranges (which is needed in this
case).
Since there are no more vma flags available, the first patch eliminates
the need for the 'VM_ALWAYSDUMP' flag. The flag is used internally by
the kernel to mark vdso and vsyscall pages. However, it is simple
enough to check if a vma covers a vdso or vsyscall page without the need
for this flag.
The second patch then replaces the 'VM_ALWAYSDUMP' flag with a new
'VM_NODUMP' flag, which can be set by userspace using new madvise flags:
'MADV_DONTDUMP', and unset via 'MADV_DODUMP'. The core dump filters
continue to work the same as before unless 'MADV_DONTDUMP' is set on the
region.
The qemu code which implements this features is at:
http://people.redhat.com/~jbaron/qemu-dump/qemu-dump.patch
In my testing the qemu core dump shrunk from 383MB -> 13MB with this
patch.
I also believe that the 'MADV_DONTDUMP' flag might be useful for
security sensitive apps, which might want to select which areas are
dumped.
This patch:
The VM_ALWAYSDUMP flag is currently used by the coredump code to
indicate that a vma is part of a vsyscall or vdso section. However, we
can determine if a vma is in one these sections by checking it against
the gate_vma and checking for a non-NULL return value from
arch_vma_name(). Thus, freeing a valuable vma bit.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Acked-by: Roland McGrath <roland@hack.frob.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Avi Kivity <avi@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Let's factor out the need_resched() check instead of having it duplicated
in every pm_idle implementations to avoid inconsistencies (omap2_pm_idle
is missing it already).
The forceful re-enablement of IRQs after pm_idle has returned can go.
The warning certainly doesn't trigger for existing users.
To get rid of the pm_idle calling convention oddity, let's introduce
arm_pm_idle() allowing for the local_irq_enable() to be factored out
from SOC specific implementations. The default pm_idle function becomes
a wrapper for arm_pm_idle and it takes care of enabling IRQs closer to
where they are initially disabled.
And finally move the comment explaining the reason for that turning off
of IRQs to a more proper location.
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-and-tested-by: Jamie Iles <jamie@jamieiles.com>
* 'for-linus' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (207 commits)
ARM: 7267/1: Remove BUILD_BUG_ON from asm/bug.h
ARM: 7269/1: mach-sa1100: fix sched_clock breakage
ARM: 7198/1: arm/imx6: add restart support for imx6q
ARM: restart: remove the now empty arch_reset()
ARM: restart: remove comments about adding code to arch_reset()
ARM: restart: lpc32xx & u300: remove unnecessary printk
ARM: restart: plat-samsung: remove plat/reset.h and s5p_reset_hook
ARM: restart: w90x900: use new restart hook
ARM: restart: Versatile Express: use new restart hook
ARM: restart: versatile: use new restart hook
ARM: restart: u300: use new restart hook
ARM: restart: tegra: use new restart hook
ARM: restart: spear: use new restart hook
ARM: restart: shark: use new restart hook
ARM: restart: sa1100: use new restart hook
ARM: 7252/1: restart: S5PV210: use new restart hook
ARM: 7251/1: restart: S5PC100: use new restart hook
ARM: 7250/1: restart: S5P64X0: use new restart hook
ARM: 7266/1: restart: S3C64XX: use new restart hook
ARM: 7265/1: restart: S3C24XX: use new restart hook
...
Fix up trivial conflict in arch/arm/mm/init.c due to removal of
memblock_init() clashing with the movement of the sorting of the meminfo
array.
Remove the now empty arch_reset() from all the mach/system.h includes,
and remove its callsite. Remove arm_machine_restart() as this function
no longer does anything useful.
For samsung platforms, remove the include of mach/system-reset.h and
plat/system-reset.h from their respective mach/system.h headers as these
just define their arch_reset functions. As a result, the s3c2410 and
plat-samsung system-reset.h files are no longer referenced, so remove
these files entirely.
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tools such as kexec and CPU hotplug require a way to reset the processor
and branch to some code in physical space. This requires various bits of
jiggery pokery with the caches and MMU which, when it goes wrong, tends
to lock up the system.
This patch fleshes out the soft_restart implementation so that it
branches to the reset code using the identity mapping. This requires us
to change to a temporary stack, held within the kernel image as a static
array, to avoid conflicting with the new view of memory.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Those two APIs were provided to optimize the calls of
tick_nohz_idle_enter() and rcu_idle_enter() into a single
irq disabled section. This way no interrupt happening in-between would
needlessly process any RCU job.
Now we are talking about an optimization for which benefits
have yet to be measured. Let's start simple and completely decouple
idle rcu and dyntick idle logics to simplify.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
It is assumed that rcu won't be used once we switch to tickless
mode and until we restart the tick. However this is not always
true, as in x86-64 where we dereference the idle notifiers after
the tick is stopped.
To prepare for fixing this, add two new APIs:
tick_nohz_idle_enter_norcu() and tick_nohz_idle_exit_norcu().
If no use of RCU is made in the idle loop between
tick_nohz_enter_idle() and tick_nohz_exit_idle() calls, the arch
must instead call the new *_norcu() version such that the arch doesn't
need to call rcu_idle_enter() and rcu_idle_exit().
Otherwise the arch must call tick_nohz_enter_idle() and
tick_nohz_exit_idle() and also call explicitly:
- rcu_idle_enter() after its last use of RCU before the CPU is put
to sleep.
- rcu_idle_exit() before the first use of RCU after the CPU is woken
up.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: David Miller <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
The tick_nohz_stop_sched_tick() function, which tries to delay
the next timer tick as long as possible, can be called from two
places:
- From the idle loop to start the dytick idle mode
- From interrupt exit if we have interrupted the dyntick
idle mode, so that we reprogram the next tick event in
case the irq changed some internal state that requires this
action.
There are only few minor differences between both that
are handled by that function, driven by the ts->inidle
cpu variable and the inidle parameter. The whole guarantees
that we only update the dyntick mode on irq exit if we actually
interrupted the dyntick idle mode, and that we enter in RCU extended
quiescent state from idle loop entry only.
Split this function into:
- tick_nohz_idle_enter(), which sets ts->inidle to 1, enters
dynticks idle mode unconditionally if it can, and enters into RCU
extended quiescent state.
- tick_nohz_irq_exit() which only updates the dynticks idle mode
when ts->inidle is set (ie: if tick_nohz_idle_enter() has been called).
To maintain symmetry, tick_nohz_restart_sched_tick() has been renamed
into tick_nohz_idle_exit().
This simplifies the code and micro-optimize the irq exit path (no need
for local_irq_save there). This also prepares for the split between
dynticks and rcu extended quiescent state logics. We'll need this split to
further fix illegal uses of RCU in extended quiescent states in the idle
loop.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: David Miller <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
commit 11ed0ba175 upstream.
This patch implements a workaround for PL310 erratum 769419. On
revisions of the PL310 prior to r3p2, the Store Buffer does not
automatically drain. This can cause normal, non-cacheable writes to be
retained when the memory system is idle, leading to suboptimal I/O
performance for drivers using coherent DMA.
This patch adds an optional wmb() call to the cpu_idle loop. On systems
with an outer cache, this causes an explicit flush of the store buffer.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If an idle notifier modifies a timer, calling the notifier after
the sched tick has been stopped may leave the sched tick set too
early. Move teh idle notifier call before the call to
tick_nohz_stop_sched_tick.
Change-Id: I0db3284bec6d0193bc5e2a57650ab06bd8342319
Signed-off-by: Colin Cross <ccross@android.com>
This patch implements a workaround for PL310 erratum 769419. On
revisions of the PL310 prior to r3p2, the Store Buffer does not
automatically drain. This can cause normal, non-cacheable writes to be
retained when the memory system is idle, leading to suboptimal I/O
performance for drivers using coherent DMA.
This patch adds an optional wmb() call to the cpu_idle loop. On systems
with an outer cache, this causes an explicit flush of the store buffer.
Cc: stable@vger.kernel.org
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* common/android-3.0: (570 commits)
misc: remove kernel debugger core
ARM: common: fiq_debugger: dump sysrq directly to console if enabled
ARM: common: fiq_debugger: add irq context debug functions
net: wireless: bcmdhd: Call init_ioctl() only if was started properly for WEXT
net: wireless: bcmdhd: Call init_ioctl() only if was started properly
net: wireless: bcmdhd: Fix possible memory leak in escan/iscan
cpufreq: interactive governor: default 20ms timer
cpufreq: interactive governor: go to intermediate hi speed before max
cpufreq: interactive governor: scale to max only if at min speed
cpufreq: interactive governor: apply intermediate load on current speed
ARM: idle: update idle ticks before call idle end notifier
input: gpio_input: don't print debounce message unless flag is set
net: wireless: bcm4329: Skip dhd_bus_stop() if bus is already down
net: wireless: bcmdhd: Skip dhd_bus_stop() if bus is already down
net: wireless: bcmdhd: Improve suspend/resume processing
net: wireless: bcmdhd: Check if FW is Ok for internal FW call
tcp: Don't nuke connections for the wrong protocol
ARM: common: fiq_debugger: make uart irq be no_suspend
net: wireless: Skip connect warning for CONFIG_CFG80211_ALLOW_RECONNECT
mm: avoid livelock on !__GFP_FS allocations
...
Conflicts:
arch/arm/mm/cache-l2x0.c
arch/arm/vfp/vfpmodule.c
drivers/mmc/core/host.c
kernel/power/wakelock.c
net/bluetooth/hci_event.c
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
ARM restart code flushes the cpu caches, but leaves
the external caches unflushed. Disable the external cache
to get all the desired data and prevent loss of further
information.
Change-Id: Ie6a6765cdc1dfc8ee7d4c4ed473fdbf4d5ef9b88
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Such that interactive cpufreq governor uses up-to-date idle time
information.
Reported by Colin Cross <ccross@android.com>
Change-Id: I06425444f800f803afc9dc7a6ad0fdb46c918bb6
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Kevin F. Haggerty
Francescodario Cuzzocrea
Matt Wagantall
Russell King
André Hentschel
Neil Leeder
Taniya Das
Greg Reid
Stephen Boyd
Steve Muckle
Todd Poynor
Dima Zavin
San Mehat
Laura Abbott
Rohit Vaswani
Linus Torvalds
David Howells
Will Deacon
Jason Baron
Thomas Gleixner
Nicolas Pitre
Frederic Weisbecker
Colin Cross
Bryan Huntsman