| Commit message (Collapse) | Author | Age | Files | Lines |
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Pull virtio updates from Michael Tsirkin:
"Tests, fixes and cleanups.
Just minor tweaks, there's nothing major in this cycle"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_ring: mark vring_dma_dev inline
virtio/vhost: add Jason to list of maintainers
virtio_blk: Delete an unnecessary initialisation in init_vq()
virtio_blk: Use kmalloc_array() in init_vq()
virtio: remove config.c
virtio: console: Unlock vqs while freeing buffers
ringtest: poll for new buffers once before updating event index
ringtest: commonize implementation of poll_avail/poll_used
ringtest: use link-time optimization
virtio: update balloon size in balloon "probe"
virtio_ring: Make interrupt suppression spec compliant
virtio_pci: Limit DMA mask to 44 bits for legacy virtio devices
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Commit c6017e793b93 ("virtio: console: add locks around buffer removal
in port unplug path") added locking around the freeing of buffers in the
vq. However, when free_buf() is called with can_sleep = true and rproc
is enabled, it calls dma_free_coherent() directly, requiring interrupts
to be enabled. Currently a WARNING is triggered due to the spin locking
around free_buf, with a call stack like this:
WARNING: CPU: 3 PID: 121 at ./include/linux/dma-mapping.h:433
free_buf+0x1a8/0x288
Call Trace:
[<8040c538>] show_stack+0x74/0xc0
[<80757240>] dump_stack+0xd0/0x110
[<80430d98>] __warn+0xfc/0x130
[<80430ee0>] warn_slowpath_null+0x2c/0x3c
[<807e7c6c>] free_buf+0x1a8/0x288
[<807ea590>] remove_port_data+0x50/0xac
[<807ea6a0>] unplug_port+0xb4/0x1bc
[<807ea858>] virtcons_remove+0xb0/0xfc
[<807b6734>] virtio_dev_remove+0x58/0xc0
[<807f918c>] __device_release_driver+0xac/0x134
[<807f924c>] device_release_driver+0x38/0x50
[<807f7edc>] bus_remove_device+0xfc/0x130
[<807f4b74>] device_del+0x17c/0x21c
[<807f4c38>] device_unregister+0x24/0x38
[<807b6b50>] unregister_virtio_device+0x28/0x44
Fix this by restructuring the loops to allow the locks to only be taken
where it is necessary to protect the vqs, and release it while the
buffer is being freed.
Fixes: c6017e793b93 ("virtio: console: add locks around buffer removal in port unplug path")
Cc: stable@vger.kernel.org
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Removal of this check was not properly amended to the original commit.
Cc: stable@vger.kernel.org
Fixes: 0c541332231e ("tpm: use tpm_pcr_read_dev() in tpm_do_selftest()")
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"This fixes a regression caused by the stack vmalloc change"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
hwrng: core - Don't use a stack buffer in add_early_randomness()
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hw_random carefully avoids using a stack buffer except in
add_early_randomness(). This causes a crash in virtio_rng if
CONFIG_VMAP_STACK=y.
Reported-by: Matt Mullins <mmullins@mmlx.us>
Tested-by: Matt Mullins <mmullins@mmlx.us>
Fixes: d3cc7996473a ("hwrng: fetch randomness only after device init")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Pull IPMI updates from Corey Minyard:
"A small bug fix and a new driver for acting as an IPMI device.
I was on vacation during the merge window (a long vacation) but this
is a bug fix that should go in and a new driver that shouldn't hurt
anything.
This has been in linux-next for a month or so"
* tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi: fix crash on reading version from proc after unregisted bmc
ipmi/bt-bmc: remove redundant return value check of platform_get_resource()
ipmi/bt-bmc: add a dependency on ARCH_ASPEED
ipmi: Fix ioremap error handling in bt-bmc
ipmi: add an Aspeed BT IPMI BMC driver
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I meet a crash, which could be reproduce:
1) while true; do cat /proc/ipmi/0/version; done
2) modprobe -rv ipmi_si ipmi_msghandler ipmi_devintf
[82761.021137] IPMI BT: req2rsp=5 secs retries=2
[82761.034524] ipmi device interface
[82761.222218] ipmi_si ipmi_si.0: Found new BMC (man_id: 0x0007db, prod_id: 0x0001, dev_id: 0x01)
[82761.222230] ipmi_si ipmi_si.0: IPMI bt interface initialized
[82903.922740] BUG: unable to handle kernel NULL pointer dereference at 00000000000002d4
[82903.930952] IP: [<ffffffffa030d9e8>] smi_version_proc_show+0x18/0x40 [ipmi_msghandler]
[82903.939220] PGD 86693a067 PUD 865304067 PMD 0
[82903.943893] Thread overran stack, or stack corrupted
[82903.949034] Oops: 0000 [#1] SMP
[82903.983091] Modules linked in: ipmi_si(-) ipmi_msghandler binfmt_misc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter
...
[82904.057285] pps_core scsi_transport_sas dm_mod vfio_iommu_type1 vfio xt_sctp nf_conntrack_proto_sctp nf_nat_proto_sctp
nf_nat nf_conntrack sctp libcrc32c [last unloaded: ipmi_devintf]
[82904.073169] CPU: 37 PID: 28089 Comm: cat Tainted: GF O ---- ------- 3.10.0-327.28.3.el7.x86_64 #1
[82904.083373] Hardware name: Huawei RH2288H V3/BC11HGSA0, BIOS 3.22 05/16/2016
[82904.090592] task: ffff880101cc2e00 ti: ffff880369c54000 task.ti: ffff880369c54000
[82904.098414] RIP: 0010:[<ffffffffa030d9e8>] [<ffffffffa030d9e8>] smi_version_proc_show+0x18/0x40 [ipmi_msghandler]
[82904.109124] RSP: 0018:ffff880369c57e70 EFLAGS: 00010203
[82904.114608] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000024688470
[82904.121912] RDX: fffffffffffffff4 RSI: ffffffffa0313404 RDI: ffff8808670ce200
[82904.129218] RBP: ffff880369c57e70 R08: 0000000000019720 R09: ffffffff81204a27
[82904.136521] R10: ffff88046f803300 R11: 0000000000000246 R12: ffff880662399700
[82904.143828] R13: 0000000000000001 R14: ffff880369c57f48 R15: ffff8808670ce200
[82904.151128] FS: 00007fb70c9ca740(0000) GS:ffff88086e340000(0000) knlGS:0000000000000000
[82904.159557] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[82904.165473] CR2: 00000000000002d4 CR3: 0000000864c0c000 CR4: 00000000003407e0
[82904.172778] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[82904.180084] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[82904.187385] Stack:
[82904.189573] ffff880369c57ee0 ffffffff81204f1a 00000000122a2427 0000000001426000
[82904.197392] ffff8808670ce238 0000000000010000 0000000000000000 0000000000000fff
[82904.205198] 00000000122a2427 ffff880862079600 0000000001426000 ffff880369c57f48
[82904.212962] Call Trace:
[82904.219667] [<ffffffff81204f1a>] seq_read+0xfa/0x3a0
[82904.224893] [<ffffffff8124ce2d>] proc_reg_read+0x3d/0x80
[82904.230468] [<ffffffff811e102c>] vfs_read+0x9c/0x170
[82904.235689] [<ffffffff811e1b7f>] SyS_read+0x7f/0xe0
[82904.240816] [<ffffffff81649209>] system_call_fastpath+0x16/0x1b
[82904.246991] Code: 30 a0 e8 0c 6f ef e0 5b 5d c3 66 0f 1f 84 00 00 00 00 00 0f 1f
44 00 00 48 8b 47 78 55 48 c7 c6 04 34 31 a0 48 89 e5 48 8b 40 50 <0f>
b6 90 d4 02 00 00 31 c0 89 d1 83 e2 0f c0 e9 04 0f b6 c9 e8
[82904.267710] RIP [<ffffffffa030d9e8>] smi_version_proc_show+0x18/0x40 [ipmi_msghandler]
[82904.276079] RSP <ffff880369c57e70>
[82904.279734] CR2: 00000000000002d4
[82904.283731] ---[ end trace a69e4328b49dd7c4 ]---
[82904.328118] Kernel panic - not syncing: Fatal exception
Reading versin from /proc need bmc device struct available. So in this patch
we move add/remove_proc_entries between ipmi_bmc_register and ipmi_bmc_unregister.
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Remove unneeded error handling on the result of a call
to platform_get_resource() when the value is passed to
devm_ioremap_resource().
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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devm_ioremap_resource returns ERR_PTR so we can't check for NULL.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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This patch adds a simple device driver to expose the iBT interface on
Aspeed SOCs (AST2400 and AST2500) as a character device. Such SOCs are
commonly used as BMCs (BaseBoard Management Controllers) and this
driver implements the BMC side of the BT interface.
The BT (Block Transfer) interface is used to perform in-band IPMI
communication between a host and its BMC. Entire messages are buffered
before sending a notification to the other end, host or BMC, that
there is data to be read. Usually, the host emits requests and the BMC
responses but the specification provides a mean for the BMC to send
SMS Attention (BMC-to-Host attention or System Management Software
attention) messages.
For this purpose, the driver introduces a specific ioctl on the
device: 'BT_BMC_IOCTL_SMS_ATN' that can be used by the system running
on the BMC to signal the host of such an event.
The device name defaults to '/dev/ipmi-bt-host'
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
[clg: - checkpatch fixes
- added a devicetree binding documentation
- replace 'bt_host' by 'bt_bmc' to reflect that the driver is
the BMC side of the IPMI BT interface
- renamed the device to 'ipmi-bt-host'
- introduced a temporary buffer to copy_{to,from}_user
- used platform_get_irq()
- moved the driver under drivers/char/ipmi/ but kept it as a misc
device
- changed the compatible cell to "aspeed,ast2400-bt-bmc"
]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
[clg: - checkpatch --strict fixes
- removed the use of devm_iounmap, devm_kfree in cleanup paths
- introduced an atomic-t to limit opens to 1
- introduced a mutex to protect write/read operations]
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull gcc plugins update from Kees Cook:
"This adds a new gcc plugin named "latent_entropy". It is designed to
extract as much possible uncertainty from a running system at boot
time as possible, hoping to capitalize on any possible variation in
CPU operation (due to runtime data differences, hardware differences,
SMP ordering, thermal timing variation, cache behavior, etc).
At the very least, this plugin is a much more comprehensive example
for how to manipulate kernel code using the gcc plugin internals"
* tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
latent_entropy: Mark functions with __latent_entropy
gcc-plugins: Add latent_entropy plugin
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The __latent_entropy gcc attribute can be used only on functions and
variables. If it is on a function then the plugin will instrument it for
gathering control-flow entropy. If the attribute is on a variable then
the plugin will initialize it with random contents. The variable must
be an integer, an integer array type or a structure with integer fields.
These specific functions have been selected because they are init
functions (to help gather boot-time entropy), are called at unpredictable
times, or they have variable loops, each of which provide some level of
latent entropy.
Signed-off-by: Emese Revfy <re.emese@gmail.com>
[kees: expanded commit message]
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess.h prepwork from Al Viro:
"Preparations to tree-wide switch to use of linux/uaccess.h (which,
obviously, will allow to start unifying stuff for real). The last step
there, ie
PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
`git grep -l "$PATT"|grep -v ^include/linux/uaccess.h`
is not taken here - I would prefer to do it once just before or just
after -rc1. However, everything should be ready for it"
* 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
remove a stray reference to asm/uaccess.h in docs
sparc64: separate extable_64.h, switch elf_64.h to it
score: separate extable.h, switch module.h to it
mips: separate extable.h, switch module.h to it
x86: separate extable.h, switch sections.h to it
remove stray include of asm/uaccess.h from cacheflush.h
mn10300: remove a bogus processor.h->uaccess.h include
xtensa: split uaccess.h into C and asm sides
bonding: quit messing with IOCTL
kill __kernel_ds_p off
mn10300: finish verify_area() off
frv: move HAVE_ARCH_UNMAPPED_AREA to pgtable.h
exceptions: detritus removal
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more victims of indirect include chains - au1200fb
lasat/picvue_proc and watchdog/ath79_wdt
... as well as tb0219, spotted by Sudip Mukherjee
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Pull drm updates from Dave Airlie:
"Core:
- Fence destaging work
- DRIVER_LEGACY to split off legacy drm drivers
- drm_mm refactoring
- Splitting drm_crtc.c into chunks and documenting better
- Display info fixes
- rbtree support for prime buffer lookup
- Simple VGA DAC driver
Panel:
- Add Nexus 7 panel
- More simple panels
i915:
- Refactoring GEM naming
- Refactored vma/active tracking
- Lockless request lookups
- Better stolen memory support
- FBC fixes
- SKL watermark fixes
- VGPU improvements
- dma-buf fencing support
- Better DP dongle support
amdgpu:
- Powerplay for Iceland asics
- Improved GPU reset support
- UVD/VEC powergating support for CZ/ST
- Preinitialised VRAM buffer support
- Virtual display support
- Initial SI support
- GTT rework
- PCI shutdown callback support
- HPD IRQ storm fixes
amdkfd:
- bugfixes
tilcdc:
- Atomic modesetting support
mediatek:
- AAL + GAMMA engine support
- Hook up gamma LUT
- Temporal dithering support
imx:
- Pixel clock from devicetree
- drm bridge support for LVDS bridges
- active plane reconfiguration
- VDIC deinterlacer support
- Frame synchronisation unit support
- Color space conversion support
analogix:
- PSR support
- Better panel on/off support
rockchip:
- rk3399 vop/crtc support
- PSR support
vc4:
- Interlaced vblank timing
- 3D rendering CPU overhead reduction
- HDMI output fixes
tda998x:
- HDMI audio ASoC support
sunxi:
- Allwinner A33 support
- better TCON support
msm:
- DT binding cleanups
- Explicit fence-fd support
sti:
- remove sti415/416 support
etnaviv:
- MMUv2 refactoring
- GC3000 support
exynos:
- Refactoring HDMI DCC/PHY
- G2D pm regression fix
- Page fault issues with wait for vblank
There is no nouveau work in this tree, as Ben didn't get a pull
request in, and he was fighting moving to atomic and adding mst
support, so maybe best it waits for a cycle"
* tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux: (1412 commits)
drm/crtc: constify drm_crtc_index parameter
drm/i915: Fix conflict resolution from backmerge of v4.8-rc8 to drm-next
drm/i915/guc: Unwind GuC workqueue reservation if request construction fails
drm/i915: Reset the breadcrumbs IRQ more carefully
drm/i915: Force relocations via cpu if we run out of idle aperture
drm/i915: Distinguish last emitted request from last submitted request
drm/i915: Allow DP to work w/o EDID
drm/i915: Move long hpd handling into the hotplug work
drm/i915/execlists: Reinitialise context image after GPU hang
drm/i915: Use correct index for backtracking HUNG semaphores
drm/i915: Unalias obj->phys_handle and obj->userptr
drm/i915: Just clear the mmiodebug before a register access
drm/i915/gen9: only add the planes actually affected by ddb changes
drm/i915: Allow PCH DPLL sharing regardless of DPLL_SDVO_HIGH_SPEED
drm/i915/bxt: Fix HDMI DPLL configuration
drm/i915/gen9: fix the watermark res_blocks value
drm/i915/gen9: fix plane_blocks_per_line on watermarks calculations
drm/i915/gen9: minimum scanlines for Y tile is not always 4
drm/i915/gen9: fix the WaWmMemoryReadLatency implementation
drm/i915/kbl: KBL also needs to run the SAGV code
...
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Linux 4.8-rc8
There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge
it now to avoid troubles.
* tag 'v4.8-rc8': (1442 commits)
Linux 4.8-rc8
fault_in_multipages_readable() throws set-but-unused error
mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing
radix tree: fix sibling entry handling in radix_tree_descend()
radix tree test suite: Test radix_tree_replace_slot() for multiorder entries
fix memory leaks in tracing_buffers_splice_read()
tracing: Move mutex to protect against resetting of seq data
MIPS: Fix delay slot emulation count in debugfs
MIPS: SMP: Fix possibility of deadlock when bringing CPUs online
mm: delete unnecessary and unsafe init_tlb_ubc()
huge tmpfs: fix Committed_AS leak
shmem: fix tmpfs to handle the huge= option properly
blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx
MIPS: Fix pre-r6 emulation FPU initialisation
arm64: kgdb: handle read-only text / modules
arm64: Call numa_store_cpu_info() earlier.
locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text
nvme-rdma: only clear queue flags after successful connect
i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended
perf/core: Limit matching exclusive events to one PMU
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After we update one PTE for a page, the caller expects to be able to
immediately use that through a GGTT read/write. To comply with the
callers expectations we therefore need to flush the chipset buffers
before returning.
Reported-by: Matti Hämäläinen <ccr@tnsp.org>
Fixes: d6473f566417 ("drm/i915: Add support for mapping an object page...")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Tested-by: Matti Hämäläinen <ccr@tnsp.org>
Cc: drm-intel-fixes@lists.freedesktop.org
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-2-chris@chris-wilson.co.uk
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Kernel source files need not include <linux/kconfig.h> explicitly
because the top Makefile forces to include it with:
-include $(srctree)/include/linux/kconfig.h
This commit removes explicit includes except the following:
* arch/s390/include/asm/facilities_src.h
* tools/testing/radix-tree/linux/kernel.h
These two are used for host programs.
Link: http://lkml.kernel.org/r/1473656164-11929-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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All call sites for randomize_range have been updated to use the much
simpler and more robust randomize_addr(). Remove the now unnecessary
code.
Link: http://lkml.kernel.org/r/20160803233913.32511-8-jason@lakedaemon.net
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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To date, all callers of randomize_range() have set the length to 0, and
check for a zero return value. For the current callers, the only way to
get zero returned is if end <= start. Since they are all adding a
constant to the start address, this is unnecessary.
We can remove a bunch of needless checks by simplifying the API to do just
what everyone wants, return an address between [start, start + range).
While we're here, s/get_random_int/get_random_long/. No current call site
is adversely affected by get_random_int(), since all current range
requests are < UINT_MAX. However, we should match caller expectations to
avoid coming up short (ha!) in the future.
All current callers to randomize_range() chose to use the start address if
randomize_range() failed. Therefore, we simplify things by just returning
the start address on error.
randomize_range() will be removed once all callers have been converted
over to randomize_addr().
Link: http://lkml.kernel.org/r/20160803233913.32511-2-jason@lakedaemon.net
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: "Roberts, William C" <william.c.roberts@intel.com>
Cc: Yann Droneaud <ydroneaud@opteya.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Nick Kralevich <nnk@google.com>
Cc: Jeffrey Vander Stoep <jeffv@google.com>
Cc: Daniel Cashman <dcashman@android.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
">rename2() work from Miklos + current_time() from Deepa"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: Replace current_fs_time() with current_time()
fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps
fs: Replace CURRENT_TIME with current_time() for inode timestamps
fs: proc: Delete inode time initializations in proc_alloc_inode()
vfs: Add current_time() api
vfs: add note about i_op->rename changes to porting
fs: rename "rename2" i_op to "rename"
vfs: remove unused i_op->rename
fs: make remaining filesystems use .rename2
libfs: support RENAME_NOREPLACE in simple_rename()
fs: support RENAME_NOREPLACE for local filesystems
ncpfs: fix unused variable warning
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current_fs_time() uses struct super_block* as an argument.
As per Linus's suggestion, this is changed to take struct
inode* as a parameter instead. This is because the function
is primarily meant for vfs inode timestamps.
Also the function was renamed as per Arnd's suggestion.
Change all calls to current_fs_time() to use the new
current_time() function instead. current_fs_time() will be
deleted.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"Here is the crypto update for 4.9:
API:
- The crypto engine code now supports hashes.
Algorithms:
- Allow keys >= 2048 bits in FIPS mode for RSA.
Drivers:
- Memory overwrite fix for vmx ghash.
- Add support for building ARM sha1-neon in Thumb2 mode.
- Reenable ARM ghash-ce code by adding import/export.
- Reenable img-hash by adding import/export.
- Add support for multiple cores in omap-aes.
- Add little-endian support for sha1-powerpc.
- Add Cavium HWRNG driver for ThunderX SoC"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (137 commits)
crypto: caam - treat SGT address pointer as u64
crypto: ccp - Make syslog errors human-readable
crypto: ccp - clean up data structure
crypto: vmx - Ensure ghash-generic is enabled
crypto: testmgr - add guard to dst buffer for ahash_export
crypto: caam - Unmap region obtained by of_iomap
crypto: sha1-powerpc - little-endian support
crypto: gcm - Fix IV buffer size in crypto_gcm_setkey
crypto: vmx - Fix memory corruption caused by p8_ghash
crypto: ghash-generic - move common definitions to a new header file
crypto: caam - fix sg dump
hwrng: omap - Only fail if pm_runtime_get_sync returns < 0
crypto: omap-sham - shrink the internal buffer size
crypto: omap-sham - add support for export/import
crypto: omap-sham - convert driver logic to use sgs for data xmit
crypto: omap-sham - change the DMA threshold value to a define
crypto: omap-sham - add support functions for sg based data handling
crypto: omap-sham - rename sgl to sgl_tmp for deprecation
crypto: omap-sham - align algorithms on word offset
crypto: omap-sham - add context export/import stubs
...
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Merge the crypto tree to pull in vmx ghash fix.
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Currently omap-rng checks the return value of pm_runtime_get_sync and
reports failure if anything is returned, however it should be checking
if ret < 0 as pm_runtime_get_sync return 0 on success but also can return
1 if the device was already active which is not a failure case. Only
values < 0 are actual failures.
Fixes: 61dc0a446e5d ("hwrng: omap - Fix assumption that runtime_get_sync will always succeed")
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In case of error, the function devm_ioremap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.
Fixes: 6e9b5e76882c ("hwrng: geode - Migrate to managed API")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In case of error, the function devm_kzalloc() or devm_ioport_map()
return NULL pointer not ERR_PTR(). The IS_ERR() test in the return
value check should be replaced with NULL test.
Fixes: 31b2a73c9c5f ("hwrng: amd - Migrate to managed API")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Fix checkpatch.pl warning by changing from asm/io.h to linux/io.h. In
the mean time arrange the includes in alphabetical order.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Use devm_ioremap and devm_hwrng_register instead of ioremap and
hwrng_register. This removes error handling code. Also moved code around
by removing goto statements. This improves code readability.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Fix the missing clk_disable_unprepare() before return
from st_rng_probe() in the error handling case.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Managed API eliminates error handling code, thus reduces several lines
of code.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In core rng_buffer and rng_fillbuf is allocated in hwrng_register only
once and it is freed during module exit. This patch moves allocating
rng_buffer and rng_fillbuf from hwrng_register to rng core's init. This
avoids checking whether rng_buffer and rng_fillbuf was allocated from
every hwrng_register call. Also moving them to module init makes it
explicit that it is freed in module exit.
Change in v2:
Fix memory leak when register_miscdev fails.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Checkpatch.pl warns about usage of asm/io.h. Use linux/io.h instead.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Use devm_ioremap and devm_hwrng_register instead of ioremap and
hwrng_register. This removes unregistering and error handling code.
Changes in v2:
Remove hardcoded resource size in ioremap, use resource struct obtained
by calling platform_get_resource.
Removing hardcoded resource size was suggested by LABBE Corentin.
CC: Darren Stevens <darren@stevens-zone.net>
Suggested-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Check return value of of_iomap and handle errors correctly.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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By using devm_hwrng_register instead of hwrng_register the .remove
callback in platform_driver can be removed. This reduces a few lines in
code.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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HW RNG core never asks for data less than 4 bytes. The check whether max
is less than 4 bytes is unnecessary. Remove the check.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch convert the hwrng interface used by amd768-rng to its new API
by replacing data_read()/data_present() by read().
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Instead of accessing hw directly via pmbase, it's better to
access after ioport_map() via ioread32/iowrite32.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Instead of having two global variable, it's better to use a
private struct. This will permit to remove amd_pdev variable
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The driver release the memory region before being sure that nobody use
it.
This patch made hwrng_unregister ran before any release was done.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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checkpatch complains about <asm/io.h> used instead of linux/io.h.
In fact it is not needed.
This patch remove it, and in the process, alphabetize the other headers.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The driver name is displayed each time differently.
This patch make use of the same name everywhere.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch add usage of the BIT() macro
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Some blank line are unncessary, and one is missing after declaration.
This patch fix thoses style problems.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The Cavium ThunderX SoC has a hardware random number generator.
This driver provides support using the HWRNG framework.
Signed-off-by: Omer Khaliq <okhaliq@caviumnetworks.com>
Signed-off-by: Ananth Jasty <Ananth.Jasty@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Remove omap3_rom_rng_data_present method as it was returning 1 always.
Use .read callback instead of .data_read callback. This avoids use of
obsolete callbacks.
This patch is not tested with hardware as I don't have access to it.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The field "owner" is set by the core.
Thus delete an unneeded initialisation.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- Major rework of Book3S 64-bit exception vectors (Nicholas Piggin)
- Use gas sections for arranging exception vectors et. al.
- Large set of TM cleanups and selftests (Cyril Bur)
- Enable transactional memory (TM) lazily for userspace (Cyril Bur)
- Support for XZ compression in the zImage wrapper (Oliver
O'Halloran)
- Add support for bpf constant blinding (Naveen N. Rao)
- Beginnings of upstream support for PA Semi Nemo motherboards
(Darren Stevens)
Fixes:
- Ensure .mem(init|exit).text are within _stext/_etext (Michael
Ellerman)
- xmon: Don't use ld on 32-bit (Michael Ellerman)
- vdso64: Use double word compare on pointers (Anton Blanchard)
- powerpc/nvram: Fix an incorrect partition merge (Pan Xinhui)
- powerpc: Fix usage of _PAGE_RO in hugepage (Christophe Leroy)
- powerpc/mm: Update FORCE_MAX_ZONEORDER range to allow hugetlb w/4K
(Aneesh Kumar K.V)
- Fix memory leak in queue_hotplug_event() error path (Andrew
Donnellan)
- Replay hypervisor maintenance interrupt first (Nicholas Piggin)
Various performance optimisations (Anton Blanchard):
- Align hot loops of memset() and backwards_memcpy()
- During context switch, check before setting mm_cpumask
- Remove static branch prediction in atomic{, 64}_add_unless
- Only disable HAVE_EFFICIENT_UNALIGNED_ACCESS on POWER7 little
endian
- Set default CPU type to POWER8 for little endian builds
Cleanups & features:
- Sparse fixes/cleanups (Daniel Axtens)
- Preserve CFAR value on SLB miss caused by access to bogus address
(Paul Mackerras)
- Radix MMU fixups for POWER9 (Aneesh Kumar K.V)
- Support for setting used_(vsr|vr|spe) in sigreturn path (for CRIU)
(Simon Guo)
- Optimise syscall entry for virtual, relocatable case (Nicholas
Piggin)
- Optimise MSR handling in exception handling (Nicholas Piggin)
- Support for kexec with Radix MMU (Benjamin Herrenschmidt)
- powernv EEH fixes (Russell Currey)
- Suprise PCI hotplug support for powernv (Gavin Shan)
- Endian/sparse fixes for powernv PCI (Gavin Shan)
- Defconfig updates (Anton Blanchard)
- KVM: PPC: Book3S HV: Migrate pinned pages out of CMA (Balbir Singh)
- cxl: Flush PSL cache before resetting the adapter (Frederic Barrat)
- cxl: replace loop with for_each_child_of_node(), remove unneeded
of_node_put() (Andrew Donnellan)
- Fix HV facility unavailable to use correct handler (Nicholas
Piggin)
- Remove unnecessary syscall trampoline (Nicholas Piggin)
- fadump: Fix build break when CONFIG_PROC_VMCORE=n (Michael
Ellerman)
- Quieten EEH message when no adapters are found (Anton Blanchard)
- powernv: Add PHB register dump debugfs handle (Russell Currey)
- Use kprobe blacklist for exception handlers & asm functions
(Nicholas Piggin)
- Document the syscall ABI (Nicholas Piggin)
- MAINTAINERS: Update cxl maintainers (Michael Neuling)
- powerpc: Remove all usages of NO_IRQ (Michael Ellerman)
Minor cleanups:
- Andrew Donnellan, Christophe Leroy, Colin Ian King, Cyril Bur,
Frederic Barrat, Pan Xinhui, PrasannaKumar Muralidharan, Rui Teng,
Simon Guo"
* tag 'powerpc-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits)
powerpc/bpf: Add support for bpf constant blinding
powerpc/bpf: Implement support for tail calls
powerpc/bpf: Introduce accessors for using the tmp local stack space
powerpc/fadump: Fix build break when CONFIG_PROC_VMCORE=n
powerpc: tm: Enable transactional memory (TM) lazily for userspace
powerpc/tm: Add TM Unavailable Exception
powerpc: Remove do_load_up_transact_{fpu,altivec}
powerpc: tm: Rename transct_(*) to ck(\1)_state
powerpc: tm: Always use fp_state and vr_state to store live registers
selftests/powerpc: Add checks for transactional VSXs in signal contexts
selftests/powerpc: Add checks for transactional VMXs in signal contexts
selftests/powerpc: Add checks for transactional FPUs in signal contexts
selftests/powerpc: Add checks for transactional GPRs in signal contexts
selftests/powerpc: Check that signals always get delivered
selftests/powerpc: Add TM tcheck helpers in C
selftests/powerpc: Allow tests to extend their kill timeout
selftests/powerpc: Introduce GPR asm helper header file
selftests/powerpc: Move VMX stack frame macros to header file
selftests/powerpc: Rework FPU stack placement macros and move to header file
selftests/powerpc: Check for VSX preservation across userspace preemption
...
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