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If req->io is not NULL, it's already prepared. Don't do it again,
it's dangerous.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Ensure that ctx->sqo_wait is initialized as soon as the ctx is allocated,
instead of deferring it to the offload setup. This fixes a syzbot
reported lockdep complaint, which is really due to trying to wake_up
on an uninitialized wait queue:
RSP: 002b:00007fffb1fb9aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441319
RDX: 0000000000000001 RSI: 0000000020000140 RDI: 000000000000047b
RBP: 0000000000010475 R08: 0000000000000001 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402260
R13: 00000000004022f0 R14: 0000000000000000 R15: 0000000000000000
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 7090 Comm: syz-executor222 Not tainted 5.7.0-rc1-next-20200415-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
assign_lock_key kernel/locking/lockdep.c:913 [inline]
register_lock_class+0x1664/0x1760 kernel/locking/lockdep.c:1225
__lock_acquire+0x104/0x4c50 kernel/locking/lockdep.c:4234
lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4934
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x8c/0xbf kernel/locking/spinlock.c:159
__wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:122
io_cqring_ev_posted+0xa5/0x1e0 fs/io_uring.c:1160
io_poll_remove_all fs/io_uring.c:4357 [inline]
io_ring_ctx_wait_and_kill+0x2bc/0x5a0 fs/io_uring.c:7305
io_uring_create fs/io_uring.c:7843 [inline]
io_uring_setup+0x115e/0x22b0 fs/io_uring.c:7870
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x441319
Code: e8 5c ae 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 bb 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fffb1fb9aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
Reported-by: syzbot+8c91f5d054e998721c57@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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This fixes the boot issues since 5.3 on several Dell models when the TPM
is enabled. Depending on the exact grub binary, booting the kernel would
freeze early, or just report an error parsing the final events log.
We get an event log in the SHA-1 format, which doesn't have a
tcg_efi_specid_event_head in the first event, and there is a final events
table which doesn't match the crypto agile format.
__calc_tpm2_event_size reads bad "count" and "efispecid->num_algs", and
either fails, or loops long enough for the machine to be appear frozen.
So we now only parse the final events table, which is per the spec always
supposed to be in the crypto agile format, when we got a event log in this
format.
Fixes: c46f3405692de ("tpm: Reserve the TPM final events table")
Fixes: 166a2809d65b2 ("tpm: Don't duplicate events from the final event log in the TCG2 log")
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1779611
Signed-off-by: Loïc Yhuel <loic.yhuel@gmail.com>
Link: https://lore.kernel.org/r/20200512040113.277768-1-loic.yhuel@gmail.com
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Matthew Garrett <mjg59@google.com>
[ardb: warn when final events table is missing or in the wrong format]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Pull up arch-specific prototype efi_systab_show_arch() in order to
fix a -Wmissing-prototypes warning:
arch/x86/platform/efi/efi.c:957:7: warning: no previous prototype for
‘efi_systab_show_arch’ [-Wmissing-prototypes]
char *efi_systab_show_arch(char *str)
Signed-off-by: Benjamin Thiel <b.thiel@posteo.de>
Link: https://lore.kernel.org/r/20200516132647.14568-1-b.thiel@posteo.de
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Pull cifs fixes from Steve French:
"Three small cifs/smb3 fixes, one for stable"
* tag '5.7-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix leaked reference on requeued write
cifs: Fix null pointer check in cifs_read
CIFS: Spelling s/EACCESS/EACCES/
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The iteration count value used in gsi_channel_poll() is intended to
limit poll iterations to the budget supplied as an argument. But
it's never updated.
Fix this bug by incrementing the count each time through the loop.
Reported-by: Sharath Chandra Vurukala <sharathv@codeaurora.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a client moves from a DSA user port to a software port in a bridge,
it cannot reach any other clients that connected to the DSA user ports.
That is because SA learning on the CPU port is disabled, so the switch
ignores the client's frames from the CPU port and still thinks it is at
the user port.
Fix it by enabling SA learning on the CPU port.
To prevent the switch from learning from flooding frames from the CPU
port, set skb->offload_fwd_mark to 1 for unicast and broadcast frames,
and let the switch flood them instead of trapping to the CPU port.
Multicast frames still need to be trapped to the CPU port for snooping,
so set the SA_DIS bit of the MTK tag to 1 when transmitting those frames
to disable SA learning.
Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the following warning:
=============================
WARNING: suspicious RCU usage
5.7.0-rc4-next-20200507-syzkaller #0 Not tainted
-----------------------------
net/ipv6/ip6mr.c:124 RCU-list traversed in non-reader section!!
ipmr_new_table() returns an existing table, but there is no table at
init. Therefore the condition: either holding rtnl or the list is empty
is used.
Fixes: d1db275dd3f6e ("ipv6: ip6mr: support multiple tables")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull kvm fixes from Paolo Bonzini:
"A new testcase for guest debugging (gdbstub) that exposed a bunch of
bugs, mostly for AMD processors. And a few other x86 fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Fix off-by-one error in kvm_vcpu_ioctl_x86_setup_mce
KVM: x86: Fix pkru save/restore when guest CR4.PKE=0, move it to x86.c
KVM: SVM: Disable AVIC before setting V_IRQ
KVM: Introduce kvm_make_all_cpus_request_except()
KVM: VMX: pass correct DR6 for GD userspace exit
KVM: x86, SVM: isolate vcpu->arch.dr6 from vmcb->save.dr6
KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6
KVM: nSVM: trap #DB and #BP to userspace if guest debugging is on
KVM: selftests: Add KVM_SET_GUEST_DEBUG test
KVM: X86: Fix single-step with KVM_SET_GUEST_DEBUG
KVM: X86: Set RTM for DB_VECTOR too for KVM_EXIT_DEBUG
KVM: x86: fix DR6 delivery for various cases of #DB injection
KVM: X86: Declare KVM_CAP_SET_GUEST_DEBUG properly
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- A fix for unrecoverable SLB faults in the interrupt exit path,
introduced by the recent rewrite of interrupt exit in C.
- Four fixes for our KUAP (Kernel Userspace Access Prevention) support
on 64-bit. These are all fairly minor with the exception of the
change to evaluate the get/put_user() arguments before we enable user
access, which reduces the amount of code we run with user access
enabled.
- A fix for our secure boot IMA rules, if enforcement of module
signatures is enabled at runtime rather than build time.
- A fix to our 32-bit VDSO clock_getres() which wasn't falling back to
the syscall for unknown clocks.
- A build fix for CONFIG_PPC_KUAP_DEBUG on 32-bit BookS, and another
for 40x.
Thanks to: Christophe Leroy, Hugh Dickins, Nicholas Piggin, Aurelien
Jarno, Mimi Zohar, Nayna Jain.
* tag 'powerpc-5.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/40x: Make more space for system call exception
powerpc/vdso32: Fallback on getres syscall when clock is unknown
powerpc/32s: Fix build failure with CONFIG_PPC_KUAP_DEBUG
powerpc/ima: Fix secure boot rules in ima arch policy
powerpc/64s/kuap: Restore AMR in fast_interrupt_return
powerpc/64s/kuap: Restore AMR in system reset exception
powerpc/64/kuap: Move kuap checks out of MSR[RI]=0 regions of exit code
powerpc/64s: Fix unrecoverable SLB crashes due to preemption check
powerpc/uaccess: Evaluate macro arguments once, before user access is allowed
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Pull csky updates from Guo Ren:
- fix for copy_from/to_user (a hard-to-find bug, thx Viro)
- fix for calltrace panic without FRAME_POINT
- two fixes for perf
- two build fixes
- four fixes for non-fatal bugs (msa, rm dis_irq, cleanup psr,
gdbmacros.txt)
* tag 'csky-for-linus-5.7-rc6' of git://github.com/c-sky/csky-linux:
csky: Fixup raw_copy_from_user()
csky: Fixup gdbmacros.txt with name sp in thread_struct
csky: Fixup remove unnecessary save/restore PSR code
csky: Fixup remove duplicate irq_disable
csky: Fixup calltrace panic
csky: Fixup perf callchain unwind
csky: Fixup msa highest 3 bits mask
csky: Fixup perf probe -x hungup
csky: Fixup compile error for abiv1 entry.S
csky/ftrace: Fixup error when disable CONFIG_DYNAMIC_FTRACE
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC/dt fixes from Arnd Bergmann:
"This round of fixes is almost exclusively device tree changes, with
trivial defconfig fixes and one compiler warning fix added in.
A number of patches are to fix dtc warnings, in particular on Amlogic,
i.MX and Rockchips.
Other notable changes include:
Renesas:
- Fix a wrong clock configuration on R-Mobile A1
- Fix IOMMU support on R-Car V3H
Allwinner
- Multiple audio fixes
Qualcomm
- Use a safe CPU voltage on MSM8996
- Fixes to match a late audio driver change
Rockchip:
- Some fixes for the newly added Pinebook Pro
NXP i.MX:
- Fix I2C1 pinctrl configuration for i.MX27 phytec-phycard board
- Fix imx6dl-yapp4-ursa board Ethernet connection
OMAP:
- A regression fix for non-existing can device on am534x-idk
- Fix flakey wlan on droid4 where some devices would not connect at
all because of internal pull being used with an external pull
- Fix occasional missed wake-up events on droid4 modem uart"
* tag 'arm-soc-fixes-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (51 commits)
ARM: dts: iwg20d-q7-dbcm-ca: Remove unneeded properties in hdmi@39
ARM: dts: renesas: Make hdmi encoder nodes compliant with DT bindings
arm64: dts: renesas: Make hdmi encoder nodes compliant with DT bindings
arm64: defconfig: add MEDIA_PLATFORM_SUPPORT
arm64: defconfig: ARCH_R8A7795: follow changed config symbol name
arm64: defconfig: add DRM_DISPLAY_CONNECTOR
arm64: defconfig: DRM_DUMB_VGA_DAC: follow changed config symbol name
ARM: oxnas: make ox820_boot_secondary static
ARM: dts: r8a7740: Add missing extal2 to CPG node
ARM: dts: omap4-droid4: Fix occasional lost wakeirq for uart1
ARM: dts: omap4-droid4: Fix flakey wlan by disabling internal pull for gpio
arm64: dts: allwinner: a64: Remove unused SPDIF sound card
arm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name
arm64: dts: meson-g12: remove spurious blank line
arm64: dts: meson-g12b-khadas-vim3: add missing frddr_a status property
arm64: dts: meson-g12-common: fix dwc2 clock names
arm64: dts: meson-g12b-ugoos-am6: fix usb vbus-supply
arm64: dts: freescale: imx8mp: update input_val for AUDIOMIX_BIT_STREAM
ARM: dts: r7s9210: Remove bogus clock-names from OSTM nodes
ARM: dts: rockchip: fix pinctrl sub nodename for spi in rk322x.dtsi
...
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Pull block fix from Jens Axboe:
"Just a single NVMe pull in here, with a single fix for a missing DMA
read memory barrier for completions"
* tag 'block-5.7-2020-05-16' of git://git.kernel.dk/linux-block:
nvme-pci: dma read memory barrier for completions
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"A bunch of pin control fixes, some a bit overly ripe, sorry about
that. We have important systems like Intel laptops and Qualcomm mobile
chips covered.
- Pad lock register on Intel Sunrisepoint had the wrong offset
- Fix pin config setting for the Baytrail GPIO chip
- Fix a compilation warning in the Mediatek driver
- Fix a function group name in the Actions driver
- Fix a behaviour bug in the edge polarity code in the Qualcomm
driver
- Add a missing spinlock in the Intel Cherryview driver
- Add affinity callbacks to the Qualcomm MSMGPIO chip"
* tag 'pinctrl-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: qcom: Add affinity callbacks to msmgpio IRQ chip
pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler
pinctrl: qcom: fix wrong write in update_dual_edge
pinctrl: actions: fix function group name for i2c0_group
pinctrl: mediatek: remove shadow variable declaration
pinctrl: baytrail: Enable pin configuration setting for GPIO chip
pinctrl: sunrisepoint: Fix PAD lock register offset for SPT-H
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Pull io_uring fixes from Jens Axboe:
"Two small fixes that should go into this release:
- Check and handle zero length splice (Pavel)
- Fix a regression in this merge window for fixed files used with
polled block IO"
* tag 'io_uring-5.7-2020-05-15' of git://git.kernel.dk/linux-block:
io_uring: polled fixed file must go through free iteration
io_uring: fix zero len do_splice()
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Pull NVMe fix from Christoph.
* 'nvme-5.7' of git://git.infradead.org/nvme:
nvme-pci: dma read memory barrier for completions
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Fix the following coccicheck warning:
drivers/gpu/drm/vmwgfx/vmwgfx_fence.c:518:9-10: WARNING: return of 0/1
in function 'vmw_fence_obj_signaled' with return type bool
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
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The variable ret is being initialized with a value that is never read
and it is being updated later with a new value. The initialization
is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
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The parameter name should be interruptible instead of interuptable.
Signed-off-by: Guixiong Wei <guixiongwei@gmail.com>
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
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Maintainer switch from Thomas Hellstrom to Roland Scheidegger
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Neha Bhende <bhenden@vmware.com>
Acked-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes
Renesas fixes for v5.7 (take two)
- Fix a wrong clock configuration on R-Mobile A1,
- Minor fixes that are fast-tracked to avoid introducing regressions
during conversion of DT bindings to json-schema.
* tag 'renesas-fixes-for-v5.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
ARM: dts: iwg20d-q7-dbcm-ca: Remove unneeded properties in hdmi@39
ARM: dts: renesas: Make hdmi encoder nodes compliant with DT bindings
arm64: dts: renesas: Make hdmi encoder nodes compliant with DT bindings
ARM: dts: r8a7740: Add missing extal2 to CPG node
Link: https://lore.kernel.org/r/20200515125043.22811-1-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes
Two fixes for the Allwinner SoCs, one to remove some inexistant sound card on
the A64, and one to fix the audio codec regulator on the pinetab.
* tag 'sunxi-fixes-for-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm64: dts: allwinner: a64: Remove unused SPDIF sound card
arm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name
Link: https://lore.kernel.org/r/f7a98a47-316d-4b1a-b5a5-0e1e330d5f52.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable fixes:
- nfs: fix NULL deference in nfs4_get_valid_delegation
Bugfixes:
- Fix corruption of the return value in cachefiles_read_or_alloc_pages()
- Fix several fscache cookie issues
- Fix a fscache queuing race that can trigger a BUG_ON
- NFS: Fix two use-after-free regressions due to the RPC_TASK_CRED_NOREF flag
- SUNRPC: Fix a use-after-free regression in rpc_free_client_work()
- SUNRPC: Fix a race when tearing down the rpc client debugfs directory
- SUNRPC: Signalled ASYNC tasks need to exit
- NFSv3: fix rpc receive buffer size for MOUNT call"
* tag 'nfs-for-5.7-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv3: fix rpc receive buffer size for MOUNT call
SUNRPC: 'Directory with parent 'rpc_clnt' already present!'
NFS/pnfs: Don't use RPC_TASK_CRED_NOREF with pnfs
NFS: Don't use RPC_TASK_CRED_NOREF with delegreturn
SUNRPC: Signalled ASYNC tasks need to exit
nfs: fix NULL deference in nfs4_get_valid_delegation
SUNRPC: fix use-after-free in rpc_free_client_work()
cachefiles: Fix race between read_waiter and read_copier involving op->to_do
NFSv4: Fix fscache cookie aux_data to ensure change_attr is included
NFS: Fix fscache super_cookie allocation
NFS: Fix fscache super_cookie index_key from changing after umount
cachefiles: Fix corruption of the return value in cachefiles_read_or_alloc_pages()
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Pull networking fixes from David Miller:
1) Fix sk_psock reference count leak on receive, from Xiyu Yang.
2) CONFIG_HNS should be invisible, from Geert Uytterhoeven.
3) Don't allow locking route MTUs in ipv6, RFCs actually forbid this,
from Maciej Żenczykowski.
4) ipv4 route redirect backoff wasn't actually enforced, from Paolo
Abeni.
5) Fix netprio cgroup v2 leak, from Zefan Li.
6) Fix infinite loop on rmmod in conntrack, from Florian Westphal.
7) Fix tcp SO_RCVLOWAT hangs, from Eric Dumazet.
8) Various bpf probe handling fixes, from Daniel Borkmann.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (68 commits)
selftests: mptcp: pm: rm the right tmp file
dpaa2-eth: properly handle buffer size restrictions
bpf: Restrict bpf_trace_printk()'s %s usage and add %pks, %pus specifier
bpf: Add bpf_probe_read_{user, kernel}_str() to do_refine_retval_range
bpf: Restrict bpf_probe_read{, str}() only to archs where they work
MAINTAINERS: Mark networking drivers as Maintained.
ipmr: Add lockdep expression to ipmr_for_each_table macro
ipmr: Fix RCU list debugging warning
drivers: net: hamradio: Fix suspicious RCU usage warning in bpqether.c
net: phy: broadcom: fix BCM54XX_SHD_SCR3_TRDDAPD value for BCM54810
tcp: fix error recovery in tcp_zerocopy_receive()
MAINTAINERS: Add Jakub to networking drivers.
MAINTAINERS: another add of Karsten Graul for S390 networking
drivers: ipa: fix typos for ipa_smp2p structure doc
pppoe: only process PADT targeted at local interfaces
selftests/bpf: Enforce returning 0 for fentry/fexit programs
bpf: Enforce returning 0 for fentry/fexit progs
net: stmmac: fix num_por initialization
security: Fix the default value of secid_to_secctx hook
libbpf: Fix register naming in PT_REGS s390 macros
...
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Pull rdma fixes from Jason Gunthorpe:
"A few minor bug fixes for user visible defects, and one regression:
- Various bugs from static checkers and syzkaller
- Add missing error checking in mlx4
- Prevent RTNL lock recursion in i40iw
- Fix segfault in cxgb4 in peer abort cases
- Fix a regression added in 5.7 where the IB_EVENT_DEVICE_FATAL could
be lost, and wasn't delivered to all the FDs"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/uverbs: Move IB_EVENT_DEVICE_FATAL to destroy_uobj
RDMA/uverbs: Do not discard the IB_EVENT_DEVICE_FATAL event
RDMA/iw_cxgb4: Fix incorrect function parameters
RDMA/core: Fix double put of resource
IB/core: Fix potential NULL pointer dereference in pkey cache
IB/hfi1: Fix another case where pq is left on waitlist
IB/i40iw: Remove bogus call to netdev_master_upper_dev_get()
IB/mlx4: Test return value of calls to ib_get_cached_pkey
RDMA/rxe: Always return ERR_PTR from rxe_create_mmap_info()
i40iw: Fix error handling in i40iw_manage_arp_cache()
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
- lkdtm runner fixes to prevent dmesg clearing and shellcheck errors
- ftrace test handling when test module doesn't exist
- nsfs test fix to replace zero-length array with flexible-array
- dmabuf-heaps test fix to return clear error value
* tag 'linux-kselftest-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/lkdtm: Use grep -E instead of egrep
selftests/lkdtm: Don't clear dmesg when running tests
selftests/ftrace: mark irqsoff_tracer.tc test as unresolved if the test module does not exist
tools/testing: Replace zero-length array with flexible-array
kselftests: dmabuf-heaps: Fix confused return value on expected error testing
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"A handful of build fixes, all found by Huawei's autobuilder.
None of these patches should have any functional impact on kernels
that build, and they're mostly related to various features
intermingling with !MMU.
While some of these might be better hoisted to generic code, it seems
better to have the simple fixes in the meanwhile.
As far as I know these are the only outstanding patches for 5.7"
* tag 'riscv-for-linus-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: mmiowb: Fix implicit declaration of function 'smp_processor_id'
riscv: pgtable: Fix __kernel_map_pages build error if NOMMU
riscv: Make SYS_SUPPORTS_HUGETLBFS depends on MMU
riscv: Disable ARCH_HAS_DEBUG_VIRTUAL if NOMMU
riscv: Add pgprot_writecombine/device and PAGE_SHARED defination if NOMMU
riscv: stacktrace: Fix undefined reference to `walk_stackframe'
riscv: Fix unmet direct dependencies built based on SOC_VIRT
riscv: perf: RISCV_BASE_PMU should be independent
riscv: perf_event: Make some funciton static
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Catalin Marinas:
"Fix flush_icache_range() second argument in machine_kexec() to be an
address rather than size"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: fix the flush_icache_range arguments in machine_kexec
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Alexei Starovoitov says:
====================
pull-request: bpf 2020-05-15
The following pull-request contains BPF updates for your *net* tree.
We've added 9 non-merge commits during the last 2 day(s) which contain
a total of 14 files changed, 137 insertions(+), 43 deletions(-).
The main changes are:
1) Fix secid_to_secctx LSM hook default value, from Anders.
2) Fix bug in mmap of bpf array, from Andrii.
3) Restrict bpf_probe_read to archs where they work, from Daniel.
4) Enforce returning 0 for fentry/fexit progs, from Yonghong.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Bank_num is a one-based count of banks, not a zero-based index. It
overflows the allocated space only when strictly greater than
KVM_MAX_MCE_BANKS.
Fixes: a9e38c3e01ad ("KVM: x86: Catch potential overrun in MCE setup")
Signed-off-by: Jue Wang <juew@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Message-Id: <20200511225616.19557-1-jmattson@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This topic branch will be included in both kvm/master and kvm/next
(for 5.8) in order to simplify testing of kvm/next.
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"$err" is a variable pointing to a temp file. "$out" is not: only used
as a local variable in "check()" and representing the output of a
command line.
Fixes: eedbc685321b (selftests: add PM netlink functional tests)
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Depending on the WRIOP version, the buffer size on the RX path must by a
multiple of 64 or 256. Handle this restriction properly by aligning down
the buffer size to the necessary value. Also, use the new buffer size
dynamically computed instead of the compile time one.
Fixes: 27c874867c4e ("dpaa2-eth: Use a single page per Rx buffer")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix ADC access synchronization problem with da9052 driver
- Fix temperature limit and status reporting in nct7904 driver
- Fix drivetemp temperature reporting if SCT is supported but SCT data
tables are not.
* tag 'hwmon-for-v5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (da9052) Synchronize access with mfd
hwmon: (nct7904) Fix incorrect range of temperature limit registers
hwmon: (nct7904) Read all SMI status registers in probe function
hwmon: (drivetemp) Fix SCT support if SCT data tables are not supported
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Things look good and calming down; the only change to ALSA core is the
fix for racy rawmidi buffer accesses spotted by syzkaller, and the
rest are all small device-specific quirks for HD-audio and USB-audio
devices"
* tag 'sound-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Limit int mic boost for Thinkpad T530
ALSA: hda/realtek - Add COEF workaround for ASUS ZenBook UX431DA
ALSA: hda/realtek: Enable headset mic of ASUS UX581LV with ALC295
ALSA: hda/realtek - Enable headset mic of ASUS UX550GE with ALC295
ALSA: hda/realtek - Enable headset mic of ASUS GL503VM with ALC295
ALSA: hda/realtek: Add quirk for Samsung Notebook
ALSA: rawmidi: Fix racy buffer resize under concurrent accesses
ALSA: usb-audio: add mapping for ASRock TRX40 Creator
ALSA: hda/realtek - Fix S3 pop noise on Dell Wyse
Revert "ALSA: hda/realtek: Fix pop noise on ALC225"
ALSA: firewire-lib: fix 'function sizeof not defined' error of tracepoints format
ALSA: usb-audio: Add control message quirk delay for Kingston HyperX headset
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Pull drm fixes from Dave Airlie:
"As mentioned last week an i915 PR came in late, but I left it, so the
i915 bits of this cover 2 weeks, which is why it's likely a bit larger
than usual.
Otherwise it's mostly amdgpu fixes, one tegra fix, one meson fix.
i915:
- Handle idling during i915_gem_evict_something busy loops (Chris)
- Mark current submissions with a weak-dependency (Chris)
- Propagate error from completed fences (Chris)
- Fixes on execlist to avoid GPU hang situation (Chris)
- Fixes couple deadlocks (Chris)
- Timeslice preemption fixes (Chris)
- Fix Display Port interrupt handling on Tiger Lake (Imre)
- Reduce debug noise around Frame Buffer Compression (Peter)
- Fix logic around IPC W/a for Coffee Lake and Kaby Lake (Sultan)
- Avoid dereferencing a dead context (Chris)
tegra:
- tegra120/4 smmu fixes
amdgpu:
- Clockgating fixes
- Fix fbdev with scatter/gather display
- S4 fix for navi
- Soft recovery for gfx10
- Freesync fixes
- Atomic check cursor fix
- Add a gfxoff quirk
- MST fix
amdkfd:
- Fix GEM reference counting
meson:
- error code propogation fix"
* tag 'drm-fixes-2020-05-15' of git://anongit.freedesktop.org/drm/drm: (29 commits)
drm/i915: Handle idling during i915_gem_evict_something busy loops
drm/meson: pm resume add return errno branch
drm/amd/amdgpu: Update update_config() logic
drm/amd/amdgpu: add raven1 part to the gfxoff quirk list
drm/i915: Mark concurrent submissions with a weak-dependency
drm/i915: Propagate error from completed fences
drm/i915/gvt: Fix kernel oops for 3-level ppgtt guest
drm/i915/gvt: Init DPLL/DDI vreg for virtual display instead of inheritance.
drm/amd/display: add basic atomic check for cursor plane
drm/amd/display: Fix vblank and pageflip event handling for FreeSync
drm/amdgpu: implement soft_recovery for gfx10
drm/amdgpu: enable hibernate support on Navi1X
drm/amdgpu: Use GEM obj reference for KFD BOs
drm/amdgpu: force fbdev into vram
drm/amd/powerplay: perform PG ungate prior to CG ungate
drm/amdgpu: drop unnecessary cancel_delayed_work_sync on PG ungate
drm/amdgpu: disable MGCG/MGLS also on gfx CG ungate
drm/i915/execlists: Track inflight CCID
drm/i915/execlists: Avoid reusing the same logical CCID
drm/i915/gem: Remove object_is_locked assertion from unpin_from_display_plane
...
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sparse warns about converting void * to void __user *. This is not new
but only got noticed now that vhost is built on more systems.
This is just a question of __user tags missing in a couple of places,
so fix it up.
Fixes: f88949138058 ("vhost: introduce O(1) vq metadata cache")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Daniel Borkmann says:
====================
Small set of fixes in order to restrict BPF helpers for tracing which are
broken on archs with overlapping address ranges as per discussion in [0].
I've targetted this for -bpf tree so they can be routed as fixes. Thanks!
v1 -> v2:
- switch to reusable %pks, %pus format specifiers (Yonghong)
- fixate %s on kernel_ds probing for archs with overlapping addr space
[0] https://lore.kernel.org/bpf/CAHk-=wjJKo0GVixYLmqPn-Q22WFu0xHaBSjKEo7e7Yw72y5SPQ@mail.gmail.com/T/
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Usage of plain %s conversion specifier in bpf_trace_printk() suffers from the
very same issue as bpf_probe_read{,str}() helpers, that is, it is broken on
archs with overlapping address ranges.
While the helpers have been addressed through work in 6ae08ae3dea2 ("bpf: Add
probe_read_{user, kernel} and probe_read_{user, kernel}_str helpers"), we need
an option for bpf_trace_printk() as well to fix it.
Similarly as with the helpers, force users to make an explicit choice by adding
%pks and %pus specifier to bpf_trace_printk() which will then pick the corresponding
strncpy_from_unsafe*() variant to perform the access under KERNEL_DS or USER_DS.
The %pk* (kernel specifier) and %pu* (user specifier) can later also be extended
for other objects aside strings that are probed and printed under tracing, and
reused out of other facilities like bpf_seq_printf() or BTF based type printing.
Existing behavior of %s for current users is still kept working for archs where it
is not broken and therefore gated through CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE.
For archs not having this property we fall-back to pick probing under KERNEL_DS as
a sensible default.
Fixes: 8d3b7dce8622 ("bpf: add support for %s specifier to bpf_trace_printk()")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Link: https://lore.kernel.org/bpf/20200515101118.6508-4-daniel@iogearbox.net
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Given bpf_probe_read{,str}() BPF helpers are now only available under
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, we need to add the drop-in
replacements of bpf_probe_read_{kernel,user}_str() to do_refine_retval_range()
as well to avoid hitting the same issue as in 849fa50662fbc ("bpf/verifier:
refine retval R0 state for bpf_get_stack helper").
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200515101118.6508-3-daniel@iogearbox.net
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Given the legacy bpf_probe_read{,str}() BPF helpers are broken on archs
with overlapping address ranges, we should really take the next step to
disable them from BPF use there.
To generally fix the situation, we've recently added new helper variants
bpf_probe_read_{user,kernel}() and bpf_probe_read_{user,kernel}_str().
For details on them, see 6ae08ae3dea2 ("bpf: Add probe_read_{user, kernel}
and probe_read_{user,kernel}_str helpers").
Given bpf_probe_read{,str}() have been around for ~5 years by now, there
are plenty of users at least on x86 still relying on them today, so we
cannot remove them entirely w/o breaking the BPF tracing ecosystem.
However, their use should be restricted to archs with non-overlapping
address ranges where they are working in their current form. Therefore,
move this behind a CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE and
have x86, arm64, arm select it (other archs supporting it can follow-up
on it as well).
For the remaining archs, they can workaround easily by relying on the
feature probe from bpftool which spills out defines that can be used out
of BPF C code to implement the drop-in replacement for old/new kernels
via: bpftool feature probe macro
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/bpf/20200515101118.6508-2-daniel@iogearbox.net
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Fix to return negative error code from the error handling case
instead of 0 in mhi_init_dev_ctxt() and mhi_driver_probe().
Fixes: 3000f85b8f47 ("bus: mhi: core: Add support for basic PM operations")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200509075654.175002-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix to return negative error code -ENOMEM from the ioremap() error handling
case instead of 0, as done elsewhere in this function.
Fixes: 43986798fd50 ("ipack: add error handling for ioremap_nocache")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Link: https://lore.kernel.org/r/20200507094237.13599-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fwnode_find_reference() doesn't return NULL and hence that check
should be avoided.
Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200507053547.13707-1-calvin.johnson@oss.nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Allow me_cl object to be freed by releasing the reference
that was acquired by one of the search functions:
__mei_me_cl_by_uuid_id() or __mei_me_cl_by_uuid()
Cc: <stable@vger.kernel.org>
Reported-by: 亿一 <teroincn@gmail.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200512223140.32186-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
iio-fixes-for-5.7b Second set of fixes for IIO in the 5.7 cycle.
Usual mixed bag of breakage in new code and ancient bugs.
ad2s1210
- Fix missing CS change needed to actually read anything.
atlas-sensor
- Avoid clashing scan index with the timestamp channel.
sca3000
- Fix a randomly placed get_device in an error message print.
st_lsm6dsx
- Fix missing unlock in error path.
stm32-adc
- Fix which device is used to request DMA to ensure it's one
that has actually been registered at point of use.
stm32-dfsdm
- Fix which device is used to request DMA to ensure it's one
that has actually been registered at poitn of use.
ti-ads8344
- Fix channel selection.
vf610 dac
- Fix some missing error handling code.
* tag 'iio-fixes-for-5.7b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
iio: sca3000: Remove an erroneous 'get_device()'
iio: adc: stm32-dfsdm: fix device used to request dma
iio: adc: stm32-adc: fix device used to request dma
iio: adc: ti-ads8344: Fix channel selection
staging: iio: ad2s1210: Fix SPI reading
iio: dac: vf610: Fix an error handling path in 'vf610_dac_probe()'
iio: imu: st_lsm6dsx: unlock on error in st_lsm6dsx_shub_write_raw()
iio: chemical: atlas-sensor: correct DO-SM channels
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FuzzUSB (a variant of syzkaller) found an illegal array access
using an incorrect index while binding a gadget with UDC.
Reference: https://www.spinics.net/lists/linux-usb/msg194331.html
This bug occurs when a size variable used for a buffer
is misused to access its strcpy-ed buffer.
Given a buffer along with its size variable (taken from user input),
from which, a new buffer is created using kstrdup().
Due to the original buffer containing 0 value in the middle,
the size of the kstrdup-ed buffer becomes smaller than that of the original.
So accessing the kstrdup-ed buffer with the same size variable
triggers memory access violation.
The fix makes sure no zero value in the buffer,
by comparing the strlen() of the orignal buffer with the size variable,
so that the access to the kstrdup-ed buffer is safe.
BUG: KASAN: slab-out-of-bounds in gadget_dev_desc_UDC_store+0x1ba/0x200
drivers/usb/gadget/configfs.c:266
Read of size 1 at addr ffff88806a55dd7e by task syz-executor.0/17208
CPU: 2 PID: 17208 Comm: syz-executor.0 Not tainted 5.6.8 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xce/0x128 lib/dump_stack.c:118
print_address_description.constprop.4+0x21/0x3c0 mm/kasan/report.c:374
__kasan_report+0x131/0x1b0 mm/kasan/report.c:506
kasan_report+0x12/0x20 mm/kasan/common.c:641
__asan_report_load1_noabort+0x14/0x20 mm/kasan/generic_report.c:132
gadget_dev_desc_UDC_store+0x1ba/0x200 drivers/usb/gadget/configfs.c:266
flush_write_buffer fs/configfs/file.c:251 [inline]
configfs_write_file+0x2f1/0x4c0 fs/configfs/file.c:283
__vfs_write+0x85/0x110 fs/read_write.c:494
vfs_write+0x1cd/0x510 fs/read_write.c:558
ksys_write+0x18a/0x220 fs/read_write.c:611
__do_sys_write fs/read_write.c:623 [inline]
__se_sys_write fs/read_write.c:620 [inline]
__x64_sys_write+0x73/0xb0 fs/read_write.c:620
do_syscall_64+0x9e/0x510 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Signed-off-by: Kyungtae Kim <kt0755@gmail.com>
Reported-and-tested-by: Kyungtae Kim <kt0755@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200510054326.GA19198@pizza01
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On Tue, May 12, 2020 at 09:36:07PM +0800, Kai-Heng Feng wrote [1]:
> This patch prevents my Raven Ridge xHCI from getting runtime suspend.
The problem described in v5.6 commit 1208f9e1d758c9 ("USB: hub: Fix the
broken detection of USB3 device in SMSC hub") applies solely to the
USB5534B hub [2] present on the Kingfisher Infotainment Carrier Board,
manufactured by Shimafuji Electric Inc [3].
Despite that, the aforementioned commit applied the quirk to _all_ hubs
carrying vendor ID 0x424 (i.e. SMSC), of which there are more [4] than
initially expected. Consequently, the quirk is now enabled on platforms
carrying SMSC/Microchip hub models which potentially don't exhibit the
original issue.
To avoid reports like [1], further limit the quirk's scope to
USB5534B [2], by employing both Vendor and Product ID checks.
Tested on H3ULCB + Kingfisher rev. M05.
[1] https://lore.kernel.org/linux-renesas-soc/73933975-6F0E-40F5-9584-D2B8F615C0F3@canonical.com/
[2] https://www.microchip.com/wwwproducts/en/USB5534B
[3] http://www.shimafuji.co.jp/wp/wp-content/uploads/2018/08/SBEV-RCAR-KF-M06Board_HWSpecificationEN_Rev130.pdf
[4] https://devicehunt.com/search/type/usb/vendor/0424/device/any
Fixes: 1208f9e1d758c9 ("USB: hub: Fix the broken detection of USB3 device in SMSC hub")
Cc: stable@vger.kernel.org # v4.14+
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Hardik Gajjar <hgajjar@de.adit-jv.com>
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200514220246.13290-1-erosca@de.adit-jv.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
USB: fixes for v5.7-rc6
The main part here are the important fixes for the raw-gadget before it
becomes an ABI. We're adding support for stall/halt/wedge which is
actually pretty important in many situations. There's also a NULL
pointer deref fix.
Apart from raw-gadget, I've included some recent sparse fixes to a few
drivers.
Signed-off-by: Felipe Balbi <balbi@kernel.org>
* tag 'fixes-for-v5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
usb: cdns3: gadget: make a bunch of functions static
usb: mtu3: constify struct debugfs_reg32
usb: gadget: udc: atmel: Make some symbols static
usb: raw-gadget: fix null-ptr-deref when reenabling endpoints
usb: raw-gadget: documentation updates
usb: raw-gadget: support stalling/halting/wedging endpoints
usb: raw-gadget: fix gadget endpoint selection
usb: raw-gadget: improve uapi headers comments
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An uninitialised spin lock for sifive serial console raises a bad
magic spin_lock error as reported and discussed here [1].
Initialising the spin lock resolves the issue.
The fix is tested on HiFive Unleashed A00 board with Linux 5.7-rc4
and OpenSBI v0.7
[1] https://lore.kernel.org/linux-riscv/b9fe49483a903f404e7acc15a6efbef756db28ae.camel@wdc.com
Fixes: 45c054d0815b ("tty: serial: add driver for the SiFive UART")
Reported-by: Atish Patra <Atish.Patra@wdc.com>
Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1589019852-21505-2-git-send-email-sagar.kadam@sifive.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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