| Commit message (Collapse) | Author | Age |
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commit 236dec051078a8691950f56949612b4b74107e48 upstream.
Using "make tinyconfig" produces a couple of annoying warnings that show
up for build test machines all the time:
.config:966:warning: override: NOHIGHMEM changes choice state
.config:965:warning: override: SLOB changes choice state
.config:963:warning: override: KERNEL_XZ changes choice state
.config:962:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state
.config:933:warning: override: SLOB changes choice state
.config:930:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state
.config:870:warning: override: SLOB changes choice state
.config:868:warning: override: KERNEL_XZ changes choice state
.config:867:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state
I've made a previous attempt at fixing them and we discussed a number of
alternatives.
I tried changing the Makefile to use "merge_config.sh -n
$(fragment-list)" but couldn't get that to work properly.
This is yet another approach, based on the observation that we do want
to see a warning for conflicting 'choice' options, and that we can
simply make them non-conflicting by listing all other options as
disabled. This is a trivial patch that we can apply independent of
plans for other changes.
Link: http://lkml.kernel.org/r/20160829214952.1334674-2-arnd@arndb.de
Link: https://storage.kernelci.org/mainline/v4.7-rc6/x86-tinyconfig/build.log
https://patchwork.kernel.org/patch/9212749/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 872c63fbf9e153146b07f0cece4da0d70b283eeb upstream.
smp_mb__before_spinlock() is intended to upgrade a spin_lock() operation
to a full barrier, such that prior stores are ordered with respect to
loads and stores occuring inside the critical section.
Unfortunately, the core code defines the barrier as smp_wmb(), which
is insufficient to provide the required ordering guarantees when used in
conjunction with our load-acquire-based spinlock implementation.
This patch overrides the arm64 definition of smp_mb__before_spinlock()
to map to a full smp_mb().
Cc: Peter Zijlstra <peterz@infradead.org>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 78567f135d9bbbaf4538f63656d3e4d957c35fe9 upstream.
The STiH4{07,10} platform contains some interconnect clocks which are used
by various IPs. If these clocks aren't handled correctly by ST's SDHCI
driver MMC will break and the following output can be observed:
[ 13.916949] mmc0: Timeout waiting for hardware interrupt.
[ 13.922349] sdhci: =========== REGISTER DUMP (mmc0)===========
[ 13.928175] sdhci: Sys addr: 0x00000000 | Version: 0x00001002
[ 13.933999] sdhci: Blk size: 0x00007040 | Blk cnt: 0x00000001
[ 13.939825] sdhci: Argument: 0x00fffff0 | Trn mode: 0x00000013
[ 13.945650] sdhci: Present: 0x1fff0206 | Host ctl: 0x00000011
[ 13.951475] sdhci: Power: 0x0000000f | Blk gap: 0x00000080
[ 13.957300] sdhci: Wake-up: 0x00000000 | Clock: 0x00003f07
[ 13.963126] sdhci: Timeout: 0x00000004 | Int stat: 0x00000000
[ 13.968952] sdhci: Int enab: 0x02ff008b | Sig enab: 0x02ff008b
[ 13.974777] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
[ 13.980602] sdhci: Caps: 0x21ed3281 | Caps_1: 0x00000000
[ 13.986428] sdhci: Cmd: 0x0000063a | Max curr: 0x00000000
[ 13.992252] sdhci: Host ctl2: 0x00000000
[ 13.996166] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x7c048200
[ 14.001990] sdhci: ===========================================
[ 14.009802] mmc0: Got data interrupt 0x02000000 even though no data operation was in progress.
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 153b58ea932b2d0642fa5cd41c93bb0555f3f09b upstream.
The gpmc ranges property for NAND at CS0 was being overridden by later
includes that defined gpmc ethernet nodes, effectively breaking NAND on
these systems:
omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has
malformed 'reg' property
Instead of redefining the NAND range in every such dtsi, define all
currently used ranges in omap3-overo-base.dtsi.
Fixes: 98ce6007efb4 ("ARM: dts: overo: Support PoP NAND")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 5e0568dfbfb8c13cdb69c9fd06d600593ad4b430 upstream.
The gpmc ranges property for NAND at CS0 has been broken since it was
first added.
This currently prevents the nand gpmc child node from being probed:
omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has
malformed 'reg' property
and consequently the NAND device from being registered.
Fixes: 98ce6007efb4 ("ARM: dts: overo: Support PoP NAND")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f065e9e4addd75c21bb976bb2558648bf4f61de6 upstream.
Commit 833f2cbf7091 ("ARM: dts: imx6: change the core clock of spdif")
changed many more clocks than only the SPDIF core clock as stated in
the commit message.
The MLB clock has been added and this causes SPDIF regression as
reported by Xavi Drudis Ferran and also in this forum post:
https://forum.digikey.com/thread/34240
The MX6Q Reference Manual does not mention that MLB is a clock related
to SPDIF, so change it back to a dummy clock to restore SPDIF
functionality.
Thanks to Ambika for providing the fix at:
https://community.nxp.com/thread/387131
Fixes: 833f2cbf7091 ("ARM: dts: imx6: change the core clock of spdif")
Reported-by: Xavi Drudis Ferran <xdrudis@tinet.cat>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Xavi Drudis Ferran <xdrudis@tinet.cat>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b46211d6dcfb81a8af66b8684a42d629183670d4 upstream.
Add missing sysconfig/sysstatus information
to OMAP3 hwmod. The information has been
checked against OMAP34xx and OMAP36xx TRM.
Without this change DSI block is not reset
during boot, which is required for working
Nokia N950 display.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a778937888867aac17a33887d1c429120790fbc2 upstream.
Commit 148c274ea644 ("ARM: kirkwood: ib62x0: add u-boot environment
partition") split the "u-boot" partition into "u-boot" and "u-boot
environment". However, instead of the size of the environment, an offset
was given, resulting in overlapping partitions.
Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Fixes: 148c274ea644 ("ARM: kirkwood: ib62x0: add u-boot environment partition")
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Luka Perkov <luka@openwrt.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8aade778f787305fdbfd3c1d54e6b583601b5902 upstream.
i.MX6SX has bypass PMIC ready function, as this function
is normally NOT enabled on the board design, so we need
to bypass the PMIC ready pin check during DSM mode resume
flow, otherwise, the internal DSM resume logic will be
waiting for this signal to be ready forever and cause
resume fail.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Fixes: ff843d621bfc ("ARM: imx: add suspend support for i.mx6sx")
Tested-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f5a49057c71433e35a4712ab8d8f00641b3e1ec0 upstream.
There is a missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul,
without it, the "standby" mode can't work well, the system can't be
resumed.
With this commit, the "standby" mode works well.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Cc: Anson Huang <anson.huang@nxp.com>
Fixes: ee4a5f838c84 ("ARM: imx: add suspend/resume support for i.mx6ul")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b00ccf5b684992829610d162e78a7836933a1b19 upstream.
pruss hwmod RSTST register wrongly points to PWRSTCTRL register in case of
am43xx. Fix the RSTST register offset value.
This can lead to setting of wrong power state values for PER domain.
Fixes: 1c7e224d ("ARM: OMAP2+: hwmod: AM335x: runtime register update")
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7e9d2850a8db4e0d85a20bb692198bf2cc4be3b7 upstream.
The STiH4{07,10} platform contains some interconnect clocks which are used
by various IPs. If this clock isn't handled correctly by ST's EHCI/OHCI
drivers, their hub won't be found, the following error be shown and the
result will be non-working USB:
[ 97.221963] hub 2-1:1.0: hub_ext_port_status failed (err = -110)
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 293f293637b55db4f9f522a5a72514e98a541076 upstream.
On arm/arm64, we depend on the kvm_unmap_hva* callbacks (via
mmu_notifiers::invalidate_*) to unmap the stage2 pagetables when
the userspace buffer gets unmapped. However, when the Hypervisor
process exits without explicit unmap of the guest buffers, the only
notifier we get is kvm_arch_flush_shadow_all() (via mmu_notifier::release
) which does nothing on arm. Later this causes us to access pages that
were already released [via exit_mmap() -> unmap_vmas()] when we actually
get to unmap the stage2 pagetable [via kvm_arch_destroy_vm() ->
kvm_free_stage2_pgd()]. This triggers crashes with CONFIG_DEBUG_PAGEALLOC,
which unmaps any free'd pages from the linear map.
[ 757.644120] Unable to handle kernel paging request at virtual address
ffff800661e00000
[ 757.652046] pgd = ffff20000b1a2000
[ 757.655471] [ffff800661e00000] *pgd=00000047fffe3003, *pud=00000047fcd8c003,
*pmd=00000047fcc7c003, *pte=00e8004661e00712
[ 757.666492] Internal error: Oops: 96000147 [#3] PREEMPT SMP
[ 757.672041] Modules linked in:
[ 757.675100] CPU: 7 PID: 3630 Comm: qemu-system-aar Tainted: G D
4.8.0-rc1 #3
[ 757.683240] Hardware name: AppliedMicro X-Gene Mustang Board/X-Gene Mustang Board,
BIOS 3.06.15 Aug 19 2016
[ 757.692938] task: ffff80069cdd3580 task.stack: ffff8006adb7c000
[ 757.698840] PC is at __flush_dcache_area+0x1c/0x40
[ 757.703613] LR is at kvm_flush_dcache_pmd+0x60/0x70
[ 757.708469] pc : [<ffff20000809dbdc>] lr : [<ffff2000080b4a70>] pstate: 20000145
...
[ 758.357249] [<ffff20000809dbdc>] __flush_dcache_area+0x1c/0x40
[ 758.363059] [<ffff2000080b6748>] unmap_stage2_range+0x458/0x5f0
[ 758.368954] [<ffff2000080b708c>] kvm_free_stage2_pgd+0x34/0x60
[ 758.374761] [<ffff2000080b2280>] kvm_arch_destroy_vm+0x20/0x68
[ 758.380570] [<ffff2000080aa330>] kvm_put_kvm+0x210/0x358
[ 758.385860] [<ffff2000080aa524>] kvm_vm_release+0x2c/0x40
[ 758.391239] [<ffff2000082ad234>] __fput+0x114/0x2e8
[ 758.396096] [<ffff2000082ad46c>] ____fput+0xc/0x18
[ 758.400869] [<ffff200008104658>] task_work_run+0x108/0x138
[ 758.406332] [<ffff2000080dc8ec>] do_exit+0x48c/0x10e8
[ 758.411363] [<ffff2000080dd5fc>] do_group_exit+0x6c/0x130
[ 758.416739] [<ffff2000080ed924>] get_signal+0x284/0xa18
[ 758.421943] [<ffff20000808a098>] do_signal+0x158/0x860
[ 758.427060] [<ffff20000808aad4>] do_notify_resume+0x6c/0x88
[ 758.432608] [<ffff200008083624>] work_pending+0x10/0x14
[ 758.437812] Code: 9ac32042 8b010001 d1000443 8a230000 (d50b7e20)
This patch fixes the issue by moving the kvm_free_stage2_pgd() to
kvm_arch_flush_shadow_all().
Tested-by: Itaru Kitayama <itaru.kitayama@riken.jp>
Reported-by: Itaru Kitayama <itaru.kitayama@riken.jp>
Reported-by: James Morse <james.morse@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit d1992996753132e2dafe955cccb2fb0714d3cfc4 upstream.
AMD F12h machines have an erratum which can cause DIV/IDIV to behave
unpredictably. The workaround is to set MSRC001_1029[31] but sometimes
there is no BIOS update containing that workaround so let's do it
ourselves unconditionally. It is simple enough.
[ Borislav: Wrote commit message. ]
Signed-off-by: Emanuel Czirai <icanrealizeum@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Yaowu Xu <yaowu@google.com>
Link: http://lkml.kernel.org/r/20160902053550.18097-1-bp@alien8.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 15301a570754c7af60335d094dd2d1808b0641a5 upstream.
Łukasz Daniluk reported that on a RHEL kernel that his machine would lock up
after enabling function tracer. I asked him to bisect the functions within
available_filter_functions, which he did and it came down to three:
_paravirt_nop(), _paravirt_ident_32() and _paravirt_ident_64()
It was found that this is only an issue when noreplace-paravirt is added
to the kernel command line.
This means that those functions are most likely called within critical
sections of the funtion tracer, and must not be traced.
In newer kenels _paravirt_nop() is defined within gcc asm(), and is no
longer an issue. But both _paravirt_ident_{32,64}() causes the
following splat when they are traced:
mm/pgtable-generic.c:33: bad pmd ffff8800d2435150(0000000001d00054)
mm/pgtable-generic.c:33: bad pmd ffff8800d3624190(0000000001d00070)
mm/pgtable-generic.c:33: bad pmd ffff8800d36a5110(0000000001d00054)
mm/pgtable-generic.c:33: bad pmd ffff880118eb1450(0000000001d00054)
NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-journal:469]
Modules linked in: e1000e
CPU: 2 PID: 469 Comm: systemd-journal Not tainted 4.6.0-rc4-test+ #513
Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v02.05 05/07/2012
task: ffff880118f740c0 ti: ffff8800d4aec000 task.ti: ffff8800d4aec000
RIP: 0010:[<ffffffff81134148>] [<ffffffff81134148>] queued_spin_lock_slowpath+0x118/0x1a0
RSP: 0018:ffff8800d4aefb90 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88011eb16d40
RDX: ffffffff82485760 RSI: 000000001f288820 RDI: ffffea0000008030
RBP: ffff8800d4aefb90 R08: 00000000000c0000 R09: 0000000000000000
R10: ffffffff821c8e0e R11: 0000000000000000 R12: ffff880000200fb8
R13: 00007f7a4e3f7000 R14: ffffea000303f600 R15: ffff8800d4b562e0
FS: 00007f7a4e3d7840(0000) GS:ffff88011eb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a4e3f7000 CR3: 00000000d3e71000 CR4: 00000000001406e0
Call Trace:
_raw_spin_lock+0x27/0x30
handle_pte_fault+0x13db/0x16b0
handle_mm_fault+0x312/0x670
__do_page_fault+0x1b1/0x4e0
do_page_fault+0x22/0x30
page_fault+0x28/0x30
__vfs_read+0x28/0xe0
vfs_read+0x86/0x130
SyS_read+0x46/0xa0
entry_SYSCALL_64_fastpath+0x1e/0xa8
Code: 12 48 c1 ea 0c 83 e8 01 83 e2 30 48 98 48 81 c2 40 6d 01 00 48 03 14 c5 80 6a 5d 82 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 <85> c0 74 f7 4c 8b 09 4d 85 c9 74 08 41 0f 18 09 eb 02 f3 90 8b
Reported-by: Łukasz Daniluk <lukasz.daniluk@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1c3c909303924d30145601f47b6c058fdd2cbc2e upstream.
| CC mm/memory.o
| In file included from ../mm/memory.c:53:0:
| ../include/linux/pfn_t.h: In function ‘pfn_t_pte’:
| ../include/linux/pfn_t.h:78:2: error: conversion to non-scalar type requested
| return pfn_pte(pfn_t_to_pfn(pfn), pgprot);
With STRICT_MM_TYPECHECKS pte_t is a struct and the offending code
forces a cast which ends up shifting a struct and hence the gcc warning.
Note that in recent past some of the arches (aarch64, s390) made
STRICT_MM_TYPECHECKS default, but we don't for ARC as this leads to slightly
worse generated code, given ARC ABI definition of returning structs
(which pte_t would become)
Quoting from ARC ABI...
"Results of type struct are returned in a caller-supplied temporary
variable whose address is passed in r0.
For such functions, the arguments are shifted so that they are
passed in r1 and up."
So
- struct to be returned would be allocated on stack requiring extra
code at call sites
- callee updates stack memory to facilitate the return (vs. simple
MOV into return reg r0)
Hence STRICT_MM_TYPECHECKS is not enabled by default for ARC
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f077aaf0754bcba0fffdbd925bc12f09cd1e38aa upstream.
In commit c60ac5693c47 ("powerpc: Update kernel VSID range", 2013-03-13)
we lost a check on the region number (the top four bits of the effective
address) for addresses below PAGE_OFFSET. That commit replaced a check
that the top 18 bits were all zero with a check that bits 46 - 59 were
zero (performed for all addresses, not just user addresses).
This means that userspace can access an address like 0x1000_0xxx_xxxx_xxxx
and we will insert a valid SLB entry for it. The VSID used will be the
same as if the top 4 bits were 0, but the page size will be some random
value obtained by indexing beyond the end of the mm_ctx_high_slices_psize
array in the paca. If that page size is the same as would be used for
region 0, then userspace just has an alias of the region 0 space. If the
page size is different, then no HPTE will be found for the access, and
the process will get a SIGSEGV (since hash_page_mm() will refuse to create
a HPTE for the bogus address).
The access beyond the end of the mm_ctx_high_slices_psize can be at most
5.5MB past the array, and so will be in RAM somewhere. Since the access
is a load performed in real mode, it won't fault or crash the kernel.
At most this bug could perhaps leak a little bit of information about
blocks of 32 bytes of memory located at offsets of i * 512kB past the
paca->mm_ctx_high_slices_psize array, for 1 <= i <= 11.
Fixes: c60ac5693c47 ("powerpc: Update kernel VSID range")
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a9cbf0b2195b695cbeeeecaa4e2770948c212e9a upstream.
In a situation, where Linux kernel gets notified about duplicate error log
from OPAL, it is been observed that kernel fails to remove sysfs entries
(/sys/firmware/opal/elog/0xXXXXXXXX) of such error logs. This is because,
we currently search the error log/dump kobject in the kset list via
'kset_find_obj()' routine. Which eventually increment the reference count
by one, once it founds the kobject.
So, unless we decrement the reference count by one after it found the kobject,
we would not be able to release the kobject properly later.
This patch adds the 'kobject_put()' which was missing earlier.
Signed-off-by: Mukesh Ojha <mukesh02@linux.vnet.ibm.com>
Reviewed-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit cc7786d3ee7e3c979799db834b528db2c0834c2e upstream.
tabort_syscall runs with RI=1, so a nested recoverable machine
check will load the paca into r13 and overwrite what we loaded
it with, because exceptions returning to privileged mode do not
restore r13.
Fixes: b4b56f9ecab4 (powerpc/tm: Abort syscalls in active transactions)
Signed-off-by: Nick Piggin <npiggin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[the change is part of 70e4da7a8ff62f2775337b705f45c804bb450454, which
is already in stable kernels 4.1.y to 4.4.y. this part of the fix
however was later undone, so remove the line again]
The following patches were applied in the wrong order in -stable. This
is the order as they appear in Linus' tree,
[0] commit 4e422bdd2f84 ("KVM: x86: fix missed hardware breakpoints")
[1] commit 172b2386ed16 ("KVM: x86: fix missed hardware breakpoints")
[2] commit 70e4da7a8ff6 ("KVM: x86: fix root cause for missed hardware breakpoints")
but this is the order for linux-4.4.y
[1] commit fc90441e728a ("KVM: x86: fix missed hardware breakpoints")
[2] commit 25e8618619a5 ("KVM: x86: fix root cause for missed hardware breakpoints")
[0] commit 0f6e5e26e68f ("KVM: x86: fix missed hardware breakpoints")
The upshot is that KVM_DEBUGREG_RELOAD is always set when returning
from kvm_arch_vcpu_load() in stable, but not in Linus' tree.
This happened because [0] and [1] are the same patch. [0] and [1] come from two
different merges, and the later merge is trivially resolved; when [2]
is applied it reverts both of them. Instead, when using the [1][2][0]
order, patches applies normally but "KVM: x86: fix missed hardware
breakpoints" is present in the final tree.
Reported-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ba913e4f72fc9cfd03dad968dfb110eb49211d80 upstream.
When mapping a page into the guest we error check using is_error_pfn(),
however this doesn't detect a value of KVM_PFN_NOSLOT, indicating an
error HVA for the page. This can only happen on MIPS right now due to
unusual memslot management (e.g. being moved / removed / resized), or
with an Enhanced Virtual Memory (EVA) configuration where the default
KVM_HVA_ERR_* and kvm_is_error_hva() definitions are unsuitable (fixed
in a later patch). This case will be treated as a pfn of zero, mapping
the first page of physical memory into the guest.
It would appear the MIPS KVM port wasn't updated prior to being merged
(in v3.10) to take commit 81c52c56e2b4 ("KVM: do not treat noslot pfn as
a error pfn") into account (merged v3.8), which converted a bunch of
is_error_pfn() calls to is_error_noslot_pfn(). Switch to using
is_error_noslot_pfn() instead to catch this case properly.
Fixes: 858dd5d45733 ("KVM/MIPS32: MMU/TLB operations for the Guest.")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[james.hogan@imgtec.com: Backport to v4.7.y]
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of having each caller of check_object_size() need to remember to
check for a const size parameter, move the check into check_object_size()
itself. This actually matches the original implementation in PaX, though
this commit cleans up the now-redundant builtin_const() calls in the
various architectures.
Signed-off-by: Kees Cook <keescook@chromium.org>
(cherry picked from commit 81409e9e28058811c9ea865345e1753f8f677e44)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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When I initially added the unsafe_[get|put]_user() helpers in commit
5b24a7a2aa20 ("Add 'unsafe' user access functions for batched
accesses"), I made the mistake of modeling the interface on our
traditional __[get|put]_user() functions, which return zero on success,
or -EFAULT on failure.
That interface is fairly easy to use, but it's actually fairly nasty for
good code generation, since it essentially forces the caller to check
the error value for each access.
In particular, since the error handling is already internally
implemented with an exception handler, and we already use "asm goto" for
various other things, we could fairly easily make the error cases just
jump directly to an error label instead, and avoid the need for explicit
checking after each operation.
So switch the interface to pass in an error label, rather than checking
the error value in the caller. Best do it now before we start growing
more users (the signal handling code in particular would be a good place
to use the new interface).
So rather than
if (unsafe_get_user(x, ptr))
... handle error ..
the interface is now
unsafe_get_user(x, ptr, label);
where an error during the user mode fetch will now just cause a jump to
'label' in the caller.
Right now the actual _implementation_ of this all still ends up being a
"if (err) goto label", and does not take advantage of any exception
label tricks, but for "unsafe_put_user()" in particular it should be
fairly straightforward to convert to using the exception table model.
Note that "unsafe_get_user()" is much harder to convert to a clever
exception table model, because current versions of gcc do not allow the
use of "asm goto" (for the exception) with output values (for the actual
value to be fetched). But that is hopefully not a limitation in the
long term.
[ Also note that it might be a good idea to switch unsafe_get_user() to
actually _return_ the value it fetches from user space, but this
commit only changes the error handling semantics ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 1bd4403d86a1c06cb6cc9ac87664a0c9d3413d51)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Device node changes required on sdm630 describing
the GPIO configuration for Nfc controller chip.
Modified corresponding Nfc device node for
QRD, MTP and CDP platforms.
Change-Id: I3772fb506736187c941f80f447996c095b5ebd8a
Signed-off-by: Rohit Rangwani <rrangwan@codeaurora.org>
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Enable it in the debug defconfig only, to allow REGMAP write
through debugfs.
CRs-Fixed: 2012079
Change-Id: I72e709a6e48698ff339dcf0e53cfac29b6d798ba
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
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Remove debug_timeout property as crash on every sys_error
is unwarranted.
Change-Id: I85266e96f0dcc38ce622462a62bb873eb11a4fd4
Signed-off-by: Abdulla Anam <abdullahanam@codeaurora.org>
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leds-qpnp-flash driver is not supported anymore. Remove it.
Change-Id: Ie2f570bad8171c460b8167f140d71c052ada2b17
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
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In the new SDM660 QRD devices, PM660 does not need the hardware
workround that cut-off voltage should be set to 3.7V, so delete
the qcom,fg-cutoff-voltage property.
CRs-Fixed: 2013279
Change-Id: Ica55128a2f426a668b0d43d04424e13672dd78fd
Signed-off-by: Yingwei Zhao <cyizhao@codeaurora.org>
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Add camera node including rear aux and front camera node, also
add corresponding eeprom actuator ois flash and torch node.
Change-Id: I84e3bfa11127ca7808491df728665f74c9222343
Signed-off-by: Pengfei Liu <pengfeiliu@codeaurora.org>
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Enable support for ESOC drivers.
Change-Id: Ie10f7b74fa7d06c7fcc93bf6eaa23889fc533b86
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
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Enable the DRM KMS/GPU driver for the mediabox configuration.
Change-Id: Ic0dedbadf5d12793c13563059872d2970bea8398
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
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SMB1381 acts as a slave charger in SDM630 QRD board. Add device node
to support it.
CRs-Fixed: 2012488
Change-Id: I03803eddc9db5f9bc7901225fa2defd8bcf0e32d
Signed-off-by: Yingwei Zhao <cyizhao@codeaurora.org>
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qpnp-fg and qpnp-smbcharger are not supported anymore. Remove them.
Change-Id: Icc010cd77d9d1e839a6dfa681b65e19b8978fb56
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
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Update actuator cci master for aux camera sensor of
SDM660 QRD device.
Change-Id: I9426b6cad5ed162f086b434950d2c854a9ba5223
Signed-off-by: Kui Wang <kuiw@codeaurora.org>
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Enable the various settings to enable A540 DRM/GPU driver on
msm8998.
Change-Id: Ic0dedbadf7d4dbaaa75c24dde64ff13faf1283b9
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
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