conversion, and few USB regression fixes.
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Merge tag 'omap-for-v3.9-rc3/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren <tony@atomide.com>:
A clock regression fix that happened with the common clock
conversion, and few USB regression fixes.
* tag 'omap-for-v3.9-rc3/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: clocks: Delay clk inits atleast until slab is initialized
ARM: OMAP4: PM: fix PM regression introduced by recent clock cleanup
ARM: OMAP3: hwmod data: keep MIDLEMODE in force-standby for musb
ARM: OMAP4: clock data: lock USB DPLL on boot
ARM: OMAP1: fix USB host on 1710
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
clk inits on OMAP happen quite early, even before slab is available.
The dependency comes from the fact that the timer init code starts to
use clocks and hwmod and we need clocks to be initialized by then.
There are various problems doing clk inits this early, one is,
not being able to do dynamic clk registrations and hence the
dependency on clk-private.h. The other is, inability to debug
early kernel crashes without enabling DEBUG_LL and earlyprintk.
Doing early clk init also exposed another instance of a kernel
panic due to a BUG() when CONFIG_DEBUG_SLAB is enabled.
[ 0.000000] Kernel BUG at c01174f8 [verbose debug info unavailable]
[ 0.000000] Internal error: Oops - BUG: 0 [#1] SMP ARM
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 Not tainted (3.9.0-rc1-12179-g72d48f9 #6)
[ 0.000000] PC is at __kmalloc+0x1d4/0x248
[ 0.000000] LR is at __clk_init+0x2e0/0x364
[ 0.000000] pc : [<c01174f8>] lr : [<c0441f54>] psr: 600001d3
[ 0.000000] sp : c076ff28 ip : c065cefc fp : c0441f54
[ 0.000000] r10: 0000001c r9 : 000080d0 r8 : c076ffd4
[ 0.000000] r7 : c074b578 r6 : c0794d88 r5 : 00000040 r4 : 00000000
[ 0.000000] r3 : 00000000 r2 : c07cac70 r1 : 000080d0 r0 : 0000001c
[ 0.000000] Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel
[ 0.000000] Control: 10c53c7d Table: 8000404a DAC: 00000017
[ 0.000000] Process swapper (pid: 0, stack limit = 0xc076e240)
[ 0.000000] Stack: (0xc076ff28 to 0xc0770000)
[ 0.000000] ff20: 22222222 c0794ec8 c06546e8 00000000 00000040 c0794d88
[ 0.000000] ff40: c074b578 c076ffd4 c07951c8 c076e000 00000000 c0441f54 c074b578 c076ffd4
[ 0.000000] ff60: c0793828 00000040 c0794d88 c074b578 c076ffd4 c0776900 c076e000 c07272ac
[ 0.000000] ff80: 2f800000 c074c968 c07f93d0 c0719780 c076ffa0 c076ff98 00000000 00000000
[ 0.000000] ffa0: 00000000 00000000 00000000 00000001 c074cd6c c077b1ec 8000406a c0715724
[ 0.000000] ffc0: 00000000 00000000 00000000 00000000 00000000 c074c968 10c53c7d c0776974
[ 0.000000] ffe0: c074cd6c c077b1ec 8000406a 411fc092 00000000 80008074 00000000 00000000
[ 0.000000] [<c01174f8>] (__kmalloc+0x1d4/0x248) from [<c0441f54>] (__clk_init+0x2e0/0x364)
[ 0.000000] [<c0441f54>] (__clk_init+0x2e0/0x364) from [<c07272ac>] (omap4xxx_clk_init+0xbc/0x140)
[ 0.000000] [<c07272ac>] (omap4xxx_clk_init+0xbc/0x140) from [<c0719780>] (setup_arch+0x15c/0x284)
[ 0.000000] [<c0719780>] (setup_arch+0x15c/0x284) from [<c0715724>] (start_kernel+0x7c/0x334)
[ 0.000000] [<c0715724>] (start_kernel+0x7c/0x334) from [<80008074>] (0x80008074)
[ 0.000000] Code: e5883004 e1a00006 e28dd00c e8bd8ff0 (e7f001f2)
[ 0.000000] ---[ end trace 1b75b31a2719ed1c ]---
[ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
It was a know issue, that slab allocations would fail when common
clock core tries to cache parent pointers for mux clocks on OMAP,
and hence a patch 'clk: Allow late cache allocation for clk->parents,
commit 7975059d' was added to work this problem around.
A BUG() within kmalloc() with CONFIG_DEBUG_SLAB enabled was completely
overlooked causing this regression.
More details on the issue reported can be found here,
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg85932.html
With all these issues around clk inits happening way too early, it
makes sense to at least move them to a point where dynamic memory
allocations are possible. So move them to a point just before the
timer code starts using clocks and hwmod.
This should at least pave way for clk inits on OMAP moving to dynamic
clock registrations instead of using the static macros defined in
clk-private.h.
The issue with kernel panic while CONFIG_DEBUG_SLAB is enabled
was reported by Piotr Haber and Tony Lindgren and this patch
fixes the reported issue as well.
Reported-by: Piotr Haber <phaber@broadcom.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Paul Walmsley <paul@pwsan.com>
Cc: stable@vger.kernel.org # v3.8
Signed-off-by: Tony Lindgren <tony@atomide.com>
that cause system hangs.
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Merge tag 'msm-fix-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into fixes
From David Brown <davidb@codeaurora.org>:
This fix is intended for v3.9. It fixes a timer bug on MSM targets
that cause system hangs.
* tag 'msm-fix-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
ARM: msm: Stop counting before reprogramming clockevent
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- recent regressions in raid5
- recent regressions in dmraid
- a few instances of CONFIG_MULTICORE_RAID456 linger
Several tagged for -stable
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Merge tag 'md-3.9-fixes' of git://neil.brown.name/md
Pull md fixes from NeilBrown:
"A few bugfixes for md
- recent regressions in raid5
- recent regressions in dmraid
- a few instances of CONFIG_MULTICORE_RAID456 linger
Several tagged for -stable"
* tag 'md-3.9-fixes' of git://neil.brown.name/md:
md: remove CONFIG_MULTICORE_RAID456 entirely
md/raid5: ensure sync and DISCARD don't happen at the same time.
MD: Prevent sysfs operations on uninitialized kobjects
MD RAID5: Avoid accessing gendisk or queue structs when not available
md/raid5: schedule_construction should abort if nothing to do.
If the clockevent is forcibly reprogrammed to have a different
match value we mistakenly assume the timer is not ticking and
program a new match value while the timer is running. Although we
clear the timer before programming a new match, it's better to
stop the timer before clearing it so that we're sure the proper
amount of ticks are counted. Failure to do so can lead to missed
ticks and system hangs.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Pull perf fixes from Ingo Molnar:
"A fair chunk of the linecount comes from a fix for a tracing bug that
corrupts latency tracing buffers when the overwrite mode is changed on
the fly - the rest is mostly assorted fewliner fixlets."
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Add SNB/SNB-EP scheduling constraints for cycle_activity event
kprobes/x86: Check Interrupt Flag modifier when registering probe
kprobes: Make hash_64() as always inlined
perf: Generate EXIT event only once per task context
perf: Reset hwc->last_period on sw clock events
tracing: Prevent buffer overwrite disabled for latency tracers
tracing: Keep overwrite in sync between regular and snapshot buffers
tracing: Protect tracer flags with trace_types_lock
perf tools: Fix LIBNUMA build with glibc 2.12 and older.
tracing: Fix free of probe entry by calling call_rcu_sched()
perf/POWER7: Create a sysfs format entry for Power7 events
perf probe: Fix segfault
libtraceevent: Remove hard coded include to /usr/local/include in Makefile
perf record: Fix -C option
perf tools: check if -DFORTIFY_SOURCE=2 is allowed
perf report: Fix build with NO_NEWT=1
perf annotate: Fix build with NO_NEWT=1
tracing: Fix race in snapshot swapping
Once instance of this Kconfig macro remained after commit
51acbcec6c ("md: remove
CONFIG_MULTICORE_RAID456"). Remove that one too. And, while we're at it,
also remove it from the defconfig files that carry it.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: NeilBrown <neilb@suse.de>
Pull kvm fixes from Marcelo Tosatti.
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Fix bounds checking in ioapic indirect register reads (CVE-2013-1798)
KVM: x86: Convert MSR_KVM_SYSTEM_TIME to use gfn_to_hva_cache functions (CVE-2013-1797)
KVM: x86: fix for buffer overflow in handling of MSR_KVM_SYSTEM_TIME (CVE-2013-1796)
KVM: x86: fix deadlock in clock-in-progress request handling
KVM: allow host header to be included even for !CONFIG_KVM
Pull sparc fixes from David Miller:
"Just some minor fixups, a sunsu console setup panic cure, and
recognition of a Fujitsu sun4v cpu."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: remove unused "config BITS"
sparc: delete "if !ULTRA_HAS_POPULATION_COUNT"
sparc64: correctly recognize SPARC64-X chips
sparc,leon: fix GRPCI2 device0 PCI config space access
sunsu: Fix panic in case of nonexistent port at "console=ttySY" cmdline option
- Fix padding computation in struct ucontext (no ABI change).
- Minor clean-up after the signal patches (unused var).
- Two old Kconfig options clean-up.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull arm64 fixes from Catalin Marinas:
- Fix !SMP build error.
- Fix padding computation in struct ucontext (no ABI change).
- Minor clean-up after the signal patches (unused var).
- Two old Kconfig options clean-up.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS
arm64: Do not select GENERIC_HARDIRQS_NO_DEPRECATED
arm64: fix padding computation in struct ucontext
arm64: Fix build error with !SMP
arm64: Removed unused variable in compat_setup_rt_frame()
sparc's asm/module.h got removed in commit
786d35d45c ("Make most arch asm/module.h
files use asm-generic/module.h"). That removed the only two uses of this
Kconfig symbol. So we can remove its entry too.
> >From arch/sparc/Makefile:
> ifeq ($(CONFIG_SPARC32),y)
> [...]
>
> [...]
> export BITS := 32
> [...]
>
> else
> [...]
>
> [...]
> export BITS := 64
> [...]
>
> So $(BITS) is set depending on whether CONFIG_SPARC32 is set or not.
> Using $(BITS) in sparc's Makefiles is not using CONFIG_BITS. That
> doesn't count as usage of "config BITS".
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Fix ARM BPF JIT handling of negative 'k' values, from Chen Gang.
2) Insufficient space reserved for bridge netlink values, fix from
Stephen Hemminger.
3) Some dst_neigh_lookup*() callers don't interpret error pointer
correctly, fix from Zhouyi Zhou.
4) Fix transport match in SCTP active_path loops, from Xugeng Zhang.
5) Fix qeth driver handling of multi-order SKB frags, from Frank
Blaschka.
6) fec driver is missing napi_disable() call, resulting in crashes on
unload, from Georg Hofmann.
7) Don't try to handle PMTU events on a listening socket, fix from Eric
Dumazet.
8) Fix timestamp location calculations in IP option processing, from
David Ward.
9) FIB_TABLE_HASHSZ setting is not controlled by the correct kconfig
tests, from Denis V Lunev.
10) Fix TX descriptor push handling in SFC driver, from Ben Hutchings.
11) Fix isdn/hisax and tulip/de4x5 kconfig dependencies, from Arnd
Bergmann.
12) bnx2x statistics don't handle 4GB rollover correctly, fix from
Maciej Żenczykowski.
13) Openvswitch bug fixes for vport del/new error reporting, missing
genlmsg_end() call in netlink processing, and mis-parsing of
LLC/SNAP ethernet types. From Rich Lane.
14) SKB pfmemalloc state should only be propagated from the head page of
a compound page, fix from Pavel Emelyanov.
15) Fix link handling in tg3 driver for 5715 chips when autonegotation
is disabled. From Nithin Sujir.
16) Fix inverted test of cpdma_check_free_tx_desc return value in
davinci_emac driver, from Mugunthan V N.
17) vlan_depth is incorrectly calculated in skb_network_protocol(), from
Li RongQing.
18) Fix probing of Gobi 1K devices in qmi_wwan driver, and fix NCM
device mode backwards compat in cdc_ncm driver. From Bjørn Mork.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
inet: limit length of fragment queue hash table bucket lists
qeth: Fix scatter-gather regression
qeth: Fix invalid router settings handling
qeth: delay feature trace
tcp: dont handle MTU reduction on LISTEN socket
bnx2x: fix occasional statistics off-by-4GB error
vhost/net: fix heads usage of ubuf_info
bridge: Add support for setting BR_ROOT_BLOCK flag.
bnx2x: add missing napi deletion in error path
drivers: net: ethernet: ti: davinci_emac: fix usage of cpdma_check_free_tx_desc()
ethernet/tulip: DE4x5 needs VIRT_TO_BUS
isdn: hisax: netjet requires VIRT_TO_BUS
net: cdc_ncm, cdc_mbim: allow user to prefer NCM for backwards compatibility
rtnetlink: Mask the rta_type when range checking
Revert "ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally"
Fix dst_neigh_lookup/dst_neigh_lookup_skb return value handling bug
smsc75xx: configuration help incorrectly mentions smsc95xx
net: fec: fix missing napi_disable call
net: fec: restart the FEC when PHY speed changes
skb: Propagate pfmemalloc on skb from head page only
...
Commit 2d78d4beb6 ("[PATCH] bitops:
sparc64: use generic bitops") made the default of GENERIC_HWEIGHT depend
on !ULTRA_HAS_POPULATION_COUNT. But since there's no Kconfig symbol with
that name, this always evaluates to true. Delete this dependency.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
management regressions. There's also a fix for the OMAP1 OHCI controller.
Basic build, boot, and PM test logs are at:
http://www.pwsan.com/omap/testlogs/fixes_a_3.9-rc/20130314101856/
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Merge tag 'omap-fixes-a-for-3.9-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.9-rc3/fixes
Miscellaneous OMAP fixes for v3.9-rc. These primarily deal with OMAP2+ power
management regressions. There's also a fix for the OMAP1 OHCI controller.
Basic build, boot, and PM test logs are at:
http://www.pwsan.com/omap/testlogs/fixes_a_3.9-rc/20130314101856/
There is a potential use after free issue with the handling of
MSR_KVM_SYSTEM_TIME. If the guest specifies a GPA in a movable or removable
memory such as frame buffers then KVM might continue to write to that
address even after it's removed via KVM_SET_USER_MEMORY_REGION. KVM pins
the page in memory so it's unlikely to cause an issue, but if the user
space component re-purposes the memory previously used for the guest, then
the guest will be able to corrupt that memory.
Tested: Tested against kvmclock unit test
Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
If the guest sets the GPA of the time_page so that the request to update the
time straddles a page then KVM will write onto an incorrect page. The
write is done byusing kmap atomic to get a pointer to the page for the time
structure and then performing a memcpy to that page starting at an offset
that the guest controls. Well behaved guests always provide a 32-byte aligned
address, however a malicious guest could use this to corrupt host kernel
memory.
Tested: Tested against kvmclock unit test.
Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
The Kconfig entry for DEBUG_ERRORS is a verbatim copy of the former arm
entry for that symbol. It got removed in v2.6.39 because it wasn't
actually used anywhere. There are still no users of DEBUG_ERRORS so
remove this entry too.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
[catalin.marinas@arm.com: removed option from defconfig]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Config option GENERIC_HARDIRQS_NO_DEPRECATED was removed in commit
78c8982564 ("genirq: Remove the now obsolete
config options and select statements"), but the select was accidentally
reintroduced in commit 8c2c3df31e ("arm64:
Build infrastructure").
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Somehow the driver snuck in with these still in it.
Signed-off-by: Ben Collins <ben.c@servergy.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There is a deadlock in pvclock handling:
cpu0: cpu1:
kvm_gen_update_masterclock()
kvm_guest_time_update()
spin_lock(pvclock_gtod_sync_lock)
local_irq_save(flags)
spin_lock(pvclock_gtod_sync_lock)
kvm_make_mclock_inprogress_request(kvm)
make_all_cpus_request()
smp_call_function_many()
Now if smp_call_function_many() called by cpu0 tries to call function on
cpu1 there will be a deadlock.
Fix by moving pvclock_gtod_sync_lock protected section outside irq
disabled section.
Analyzed by Gleb Natapov <gleb@redhat.com>
Acked-by: Gleb Natapov <gleb@redhat.com>
Reported-and-Tested-by: Yongjie Ren <yongjie.ren@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Pull s390 fixes from Martin Schwidefsky:
"A couple of bug fixes, the most hairy on is the flush_tlb_kernel_range
fix. Another case of "how could this ever have worked?"."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/kdump: Do not add standby memory for kdump
drivers/i2c: remove !S390 dependency, add missing GENERIC_HARDIRQS dependencies
s390/scm: process availability
s390/scm_blk: suspend writes
s390/scm_drv: extend notify callback
s390/scm_blk: fix request number accounting
s390/mm: fix flush_tlb_kernel_range()
s390/mm: fix vmemmap size calculation
s390: critical section cleanup vs. machine checks
Things are calming down for arm-soc as well. This set of bug fixes is
dominated in size by the at91 platform bug fixes. Some of them were
meant to go through the framebuffer tree during the merge window, but
since the framebuffer maintainer could not be reached, I offered to
take them here. The other notable at91 change is the addition of pinctrl
definitions to fix the NAND controller.
The rest are mostly simple regression fixes:
* Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
renaming of the Kconfig symbol. You will get a trivial merge conflict
here, we still want to remove it.
* missing bits for clocks on imx and s5pv210
* missing header inclusions in mmp and shmobile
* typos in s5pv210 camera and vt8500 clock support code
and three trivial fixes for pre-3.8 bugs:
* an old bogus build warning in the joystick driver
* a misleading Kconfig description
* a NULL pointer check on davinci
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC bug fixes from Arnd Bergmann:
"Things are calming down for arm-soc as well. This set of bug fixes is
dominated in size by the at91 platform bug fixes. Some of them were
meant to go through the framebuffer tree during the merge window, but
since the framebuffer maintainer could not be reached, I offered to
take them here. The other notable at91 change is the addition of
pinctrl definitions to fix the NAND controller.
The rest are mostly simple regression fixes:
- Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
renaming of the Kconfig symbol. You will get a trivial merge
conflict here, we still want to remove it.
- missing bits for clocks on imx and s5pv210
- missing header inclusions in mmp and shmobile
- typos in s5pv210 camera and vt8500 clock support code
and three trivial fixes for pre-3.8 bugs:
- an old bogus build warning in the joystick driver
- a misleading Kconfig description
- a NULL pointer check on davinci"
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: fix CONFIG_VIRT_TO_BUS handling
ARM: i.MX35: enable MAX clock
ARM: Scorpion is a v7 architecture, not v6
ARM: mmp: add platform_device head file in gplugd
input/joystick: use get_cycles on ARM
[media] s5p-fimc: fix s5pv210 build
clk: vt8500: Fix "fix device clock divisor calculations"
ARM: i.MX25: Fix DT compilation
ARM: at91: fix infinite loop in at91_irq_suspend/resume
ARM: at91: add gpio suspend/resume support when using pinctrl
ARM: at91: fix LCD-wiring mode
atmel_lcdfb: fix 16-bpp modes on older SOCs
ARM: at91: dt: at91sam9x5: complete NAND pinctrl
ARM: at91: dt: at91sam9x5: correct NAND pins comments
ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830
ARM: shmobile: marzen: Include mmc/host.h
ARM: EXYNOS: Add #dma-cells for generic dma binding support for PL330
ARM: S5PV210: Fix PL330 DMA controller clkdev entries
Pull powerpc fixes from Ben Herrenschmidt:
"Here's a few powerpc fixes for 3.9, mostly regressions (though not all
from 3.9 merge window) that we've been hammering into shape over the
last couple of weeks. They fix booting on Cell and G5 among other
things (yes, we've been a bit sloppy with older machines this time
around)."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Rename USER_ESID_BITS* to ESID_BITS*
powerpc: Update kernel VSID range
powerpc: Make VSID_BITS* dependency explicit
powerpc: Make sure that we alays include CONFIG_BINFMT_ELF
powerpc/ptrace: Fix brk.len used uninitialised
powerpc: Fix -mcmodel=medium breakage in prom_init.c
powerpc: Remove last traces of POWER4_ONLY
powerpc: Fix cputable entry for 970MP rev 1.0
powerpc: Fix STAB initialization
Pull ARM fixes from Russell King:
"Just three fixes this time - a fix for a fix for our memset function,
fixing the dummy clockevent so that it doesn't interfere with real
hardware clockevents, and fixing a build error for Tegra."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7675/1: amba: tegra-ahb: Fix build error w/ PM_SLEEP w/o PM_RUNTIME
ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event
ARM: 7670/1: fix the memset fix
887cbce0 "arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS"
and 4febd95a8 "Select VIRT_TO_BUS directly where needed" from
Stephen Rothwell changed globally how CONFIG_VIRT_TO_BUS is
selected, while my own a5d533ee0 "ARM: disable virt_to_bus/
virt_to_bus almost everywhere" was merged at the same time and
changed which platforms select it on ARM.
The result of this conflict was that we again see CONFIG_VIRT_TO_BUS
on all ARM systems. This patch fixes up the problem and removes
CONFIG_ARCH_NO_VIRT_TO_BUS again on ARM.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
The expression to compute the padding needed to fill the uc_sigmask field
to 1024 bits actually computes the padding needed for 1080 bits.
Fortunately, due to the 16-byte alignment of the following field
(uc_mcontext) the definition in glibc contains enough bytes of padding
after uc_sigmask so that the overall offsets and size match in both
definitions.
Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The __atomic_hash is only defined when SMP is enabled but the
arm64ksyms.c exports it even for the UP case.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Currently kprobes check whether the copied instruction modifies
IF (interrupt flag) on each probe hit. This results not only in
introducing overhead but also involving
inat_get_opcode_attribute into the kprobes hot path, and it can
cause an infinite recursive call (and kernel panic in the end).
Actually, since the copied instruction itself can never be modified
on the buffer, it is needless to analyze the instruction on every
probe hit.
To fix this issue, we check it only once when registering probe
and store the result on ainsn->if_modifier.
Reported-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: yrl.pp-manager.tt@hitachi.com
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20130314115242.19690.33573.stgit@mhiramat-M0-7522
Signed-off-by: Ingo Molnar <mingo@kernel.org>
. perf probe: Fix segfault due to testing the wrong pointer for NULL,
from Ananth N Mavinakayanahalli.
. libtraceevent: Remove hard coded include to /usr/local/include in
Makefile, which causes cross builds to include host header files,
fix from Jack Mitchell.
. perf record: Use the right target interface for synthesizing
threads when --cpu/-C option is used, fix from Jiri Olsa.
. Check if -DFORTIFY_SOURCE=2 is allowed, as gcc 4.7.2 defines
it and then the build is broken when it is redefined in perf,
fix from Marcin Slusarz.
. Fix build with NO_NEWT=1, that can happen explicitely or when
the newt-devel package is not installed, from Michael Ellerman.
. perf/POWER7: Create a sysfs format entry for Power7 events, missing
patch from a patchseries already merged, from Sukadev Bhattiprolu.
. Fix LIBNUMA build with glibc 2.12 and older, from Vinson Lee.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
. perf probe: Fix segfault due to testing the wrong pointer for NULL,
from Ananth N Mavinakayanahalli.
. libtraceevent: Remove hard coded include to /usr/local/include in
Makefile, which causes cross builds to include host header files,
fix from Jack Mitchell.
. perf record: Use the right target interface for synthesizing
threads when --cpu/-C option is used, fix from Jiri Olsa.
. Check if -DFORTIFY_SOURCE=2 is allowed, as gcc 4.7.2 defines
it and then the build is broken when it is redefined in perf,
fix from Marcin Slusarz.
. Fix build with NO_NEWT=1, that can happen explicitely or when
the newt-devel package is not installed, from Michael Ellerman.
. perf/POWER7: Create a sysfs format entry for Power7 events, missing
patch from a patchseries already merged, from Sukadev Bhattiprolu.
. Fix LIBNUMA build with glibc 2.12 and older, from Vinson Lee.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Commit 1d9d8639c0 ("perf,x86: fix kernel crash with PEBS/BTS after
suspend/resume") fixed a crash when doing PEBS performance profiling
after resuming, but in using init_debug_store_on_cpu() to restore the
DS_AREA mtrr it also resulted in a new WARN_ON() triggering.
init_debug_store_on_cpu() uses "wrmsr_on_cpu()", which in turn uses CPU
cross-calls to do the MSR update. Which is not really valid at the
early resume stage, and the warning is quite reasonable. Now, it all
happens to _work_, for the simple reason that smp_call_function_single()
ends up just doing the call directly on the CPU when the CPU number
matches, but we really should just do the wrmsr() directly instead.
This duplicates the wrmsr() logic, but hopefully we can just remove the
wrmsr_on_cpu() version eventually.
Reported-and-tested-by: Parag Warudkar <parag.lkml@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Now we use ESID_BITS of kernel address to build proto vsid. So rename
USER_ESIT_BITS to ESID_BITS
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.8]
This patch change the kernel VSID range so that we limit VSID_BITS to 37.
This enables us to support 64TB with 65 bit VA (37+28). Without this patch
we have boot hangs on platforms that only support 65 bit VA.
With this patch we now have proto vsid generated as below:
We first generate a 37-bit "proto-VSID". Proto-VSIDs are generated
from mmu context id and effective segment id of the address.
For user processes max context id is limited to ((1ul << 19) - 5)
for kernel space, we use the top 4 context ids to map address as below
0x7fffc - [ 0xc000000000000000 - 0xc0003fffffffffff ]
0x7fffd - [ 0xd000000000000000 - 0xd0003fffffffffff ]
0x7fffe - [ 0xe000000000000000 - 0xe0003fffffffffff ]
0x7ffff - [ 0xf000000000000000 - 0xf0003fffffffffff ]
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tested-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.8]
VSID_BITS and VSID_BITS_1T depends on the context bits and user esid
bits. Make the dependency explicit
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.8]
Our kernel is not much good without BINFMT_ELF and this fixes a build
warning on 64 bit allnoconfig builds:
warning: (COMPAT) selects COMPAT_BINFMT_ELF which has unmet direct dependencies (COMPAT && BINFMT_ELF)
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
With some CONFIGS it's possible that in ppc_set_hwdebug, brk.len is
uninitialised before being used. It has been reported that GCC 4.2 will
produce the following error in this case:
arch/powerpc/kernel/ptrace.c:1479: warning: 'brk.len' is used uninitialized in this function
arch/powerpc/kernel/ptrace.c:1381: note: 'brk.len' was declared here
This patch corrects this.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Reported-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* The GPIO descriptor work has exposed how broken the non-GPIOLIB
bits for OpenRISC were. We now require GPIOLIB as this is the
preferred way forward.
* The system.h split introduced a bug in llist.h for arches using
asm-generic/cmpxchg.h directly, which is currently only OpenRISC.
The patch here moves two defines from asm-generic/atomic.h to
asm-generic/cmpxchg.h to make things work as they should.
* The VIRT_TO_BUS selector was added for OpenRISC, but OpenRISC does
not have the virt_to_bus methods, so there's a patch to remove it
again.
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Merge tag 'for-3.9-rc3' of git://openrisc.net/jonas/linux
Pull OpenRISC bug fixes from Jonas Bonn:
- The GPIO descriptor work has exposed how broken the non-GPIOLIB bits
for OpenRISC were. We now require GPIOLIB as this is the preferred
way forward.
- The system.h split introduced a bug in llist.h for arches using
asm-generic/cmpxchg.h directly, which is currently only OpenRISC.
The patch here moves two defines from asm-generic/atomic.h to
asm-generic/cmpxchg.h to make things work as they should.
- The VIRT_TO_BUS selector was added for OpenRISC, but OpenRISC does
not have the virt_to_bus methods, so there's a patch to remove it
again.
* tag 'for-3.9-rc3' of git://openrisc.net/jonas/linux:
openrisc: remove HAVE_VIRT_TO_BUS
asm-generic: move cmpxchg*_local defs to cmpxchg.h
openrisc: require gpiolib
Here are some tiny fixes for the w1 drivers and the final removal patch
for getting rid of CONFIG_EXPERIMENTAL (all users of it are now gone
from your tree, this just drops the Kconfig item itself.)
All have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg Kroah-Hartman:
"Here are some tiny fixes for the w1 drivers and the final removal
patch for getting rid of CONFIG_EXPERIMENTAL (all users of it are now
gone from your tree, this just drops the Kconfig item itself.)
All have been in the linux-next tree for a while"
* tag 'char-misc-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
final removal of CONFIG_EXPERIMENTAL
w1: fix oops when w1_search is called from netlink connector
w1-gpio: fix unused variable warning
w1-gpio: remove erroneous __exit and __exit_p()
ARM: w1-gpio: fix erroneous gpio requests
Pull DMA-mapping fix from Marek Szyprowski:
"An important fix for all ARM architectures which use ZONE_DMA.
Without it dma_alloc_* calls with GFP_ATOMIC flag might have allocated
buffers outsize DMA zone."
* 'fixes-for-3.9' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
ARM: DMA-mapping: add missing GFP_DMA flag for atomic buffer allocation
With this one we have:
- An ab8500 build failure fix.
- An ab8500 device tree parsing fix.
- A fix for twl4030_madc remove routine to work properly (when built-in).
- A fix for properly registering palmas interrupt handler.
- A fix for omap-usb init routine to actually write into the hostconfig
register.
- A couple of warning fixes for ab8500-gpadc and tps65912.
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Merge tag 'mfd-fixes-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes
Pull MFD fixes from Samuel Ortiz:
"This is the first batch of MFD fixes for 3.9.
With this one we have:
- An ab8500 build failure fix.
- An ab8500 device tree parsing fix.
- A fix for twl4030_madc remove routine to work properly (when
built-in).
- A fix for properly registering palmas interrupt handler.
- A fix for omap-usb init routine to actually write into the
hostconfig register.
- A couple of warning fixes for ab8500-gpadc and tps65912"
* tag 'mfd-fixes-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes:
mfd: twl4030-madc: Remove __exit_p annotation
mfd: ab8500: Kill "reg" property from binding
mfd: ab8500-gpadc: Complain if we fail to enable vtvout LDO
mfd: wm831x: Don't forward declare enum wm831x_auxadc
mfd: twl4030-audio: Fix argument type for twl4030_audio_disable_resource()
mfd: tps65912: Declare and use tps65912_irq_exit()
mfd: palmas: Provide irq flags through DT/platform data
mfd: Make AB8500_CORE select POWER_SUPPLY to fix build error
mfd: omap-usb-host: Actually update hostconfig
With recent arm broadcast time clean-up from Mark Rutland, the dummy
broadcast device is always registered with timer subsystem. And since
the rating of the dummy clock event is very high, it may be preferred
over a real clock event.
This is a change in behavior from past and not an intended one. So
reduce the rating of the dummy clock-event so that real clock-event
device is selected when available.
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch fixes a kernel crash when using precise sampling (PEBS)
after a suspend/resume. Turns out the CPU notifier code is not invoked
on CPU0 (BP). Therefore, the DS_AREA (used by PEBS) is not restored properly
by the kernel and keeps it power-on/resume value of 0 causing any PEBS
measurement to crash when running on CPU0.
The workaround is to add a hook in the actual resume code to restore
the DS Area MSR value. It is invoked for all CPUS. So for all but CPU0,
the DS_AREA will be restored twice but this is harmless.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The i.MX35 has two bits per clock gate which are decoded as follows:
0b00 -> clock off
0b01 -> clock is on in run mode, off in wait/doze
0b10 -> clock is on in run/wait mode, off in doze
0b11 -> clock is always on
The reset value for the MAX clock is 0b10.
The MAX clock is needed by the SoC, yet unused in the Kernel, so the
common clock framework will disable it during late init time. It will
only disable clocks though which it detects as being turned on. This
detection is made depending on the lower bit of the gate. If the reset
value has been altered by the bootloader to 0b11 the clock framework
will detect the clock as turned on, yet unused, hence it will turn it
off and the system locks up.
This patch turns the MAX clock on unconditionally making the Kernel
independent of the bootloader.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Scorpion processors have always been v7 CPUs. Fix the Kconfig
text to reflect this.
Reported-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
From Haojian Zhuang <haojian.zhuang@gmail.com>:
* 'armsoc/fix' of git://github.com/hzhuang1/linux:
ARM: mmp: add platform_device head file in gplugd
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
arch/arm/mach-mmp/gplugd.c: In function ‘gplugd_init’:
arch/arm/mach-mmp/gplugd.c:188:2: error: implicit declaration of
function ‘platform_device_register’
[-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[1]: *** [arch/arm/mach-mmp/gplugd.o] Error 1
make: *** [arch/arm/mach-mmp] Error 2
So append platform_device.h to resolve build issue.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
