Here are some small IIO and staging driver fixes for reported issues for
5.13-rc4.
Nothing major here, tiny changes for reported problems, full details are
in the shortlog if people are curious.
All have been in linux-next for a while with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver fixes from Greg KH:
"Here are some small IIO and staging driver fixes for reported issues
for 5.13-rc4.
Nothing major here, tiny changes for reported problems, full details
are in the shortlog if people are curious.
All have been in linux-next for a while with no reported problems"
* tag 'staging-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio: adc: ad7793: Add missing error code in ad7793_setup()
iio: adc: ad7923: Fix undersized rx buffer.
iio: adc: ad7768-1: Fix too small buffer passed to iio_push_to_buffers_with_timestamp()
iio: dac: ad5770r: Put fwnode in error case during ->probe()
iio: gyro: fxas21002c: balance runtime power in error path
staging: emxx_udc: fix loop in _nbu2ss_nuke()
staging: iio: cdc: ad7746: avoid overwrite of num_channels
iio: adc: ad7192: handle regulator voltage error first
iio: adc: ad7192: Avoid disabling a clock that was never enabled.
iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers
iio: adc: ad7124: Fix missbalanced regulator enable / disable on error.
Here are some small fixes for reported problems for tty and serial
drivers for 5.13-rc4.
They consist of:
- 8250 bugfixes and new device support
- lockdown security mode fixup
- syzbot found problems fixed
- 8250_omap fix for interrupt storm
- revert of 8250_omap driver fix as it caused worse problem than
the original issue
All but the last patch have been in linux-next for a while, the last one
is a revert of a problem found in linux-next with the 8250_omap driver
change.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver fixes from Greg KH:
"Here are some small fixes for reported problems for tty and serial
drivers for 5.13-rc4.
They consist of:
- 8250 bugfixes and new device support
- lockdown security mode fixup
- syzbot found problems fixed
- 8250_omap fix for interrupt storm
- revert of 8250_omap driver fix as it caused worse problem than the
original issue
All but the last patch have been in linux-next for a while, the last
one is a revert of a problem found in linux-next with the 8250_omap
driver change"
* tag 'tty-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "serial: 8250: 8250_omap: Fix possible interrupt storm"
serial: 8250_pci: handle FL_NOIRQ board flag
serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'
serial: 8250_pci: Add support for new HPE serial device
serial: 8250: 8250_omap: Fix possible interrupt storm
serial: 8250: Use BIT(x) for UART_{CAP,BUG}_*
serial: 8250: Add UART_BUG_TXRACE workaround for Aspeed VUART
serial: 8250_dw: Add device HID for new AMD UART controller
serial: sh-sci: Fix off-by-one error in FIFO threshold register setting
serial: core: fix suspicious security_locked_down() call
serial: tegra: Fix a mask operation that is always true
Here are a number of tiny USB and Thunderbolt driver fixes for 5.13-rc4.
They consist of:
- thunderbolt fixes for some NVM bound issues
- xhci fixes for reported problems
- control-request fixups
- documentation build warning fixes
- new usb-serial driver device ids
- typec bugfixes for reported issues
- usbfs warning fixups (could be triggered from userspace)
- other tiny fixes for reported problems.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt fixes from Greg KH:
"Here are a number of tiny USB and Thunderbolt driver fixes for
5.13-rc4.
They consist of:
- thunderbolt fixes for some NVM bound issues
- xhci fixes for reported problems
- control-request fixups
- documentation build warning fixes
- new usb-serial driver device ids
- typec bugfixes for reported issues
- usbfs warning fixups (could be triggered from userspace)
- other tiny fixes for reported problems.
All of these have been in linux-next with no reported issues"
* tag 'usb-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
xhci: Fix 5.12 regression of missing xHC cache clearing command after a Stall
xhci: fix giving back URB with incorrect status regression in 5.12
usb: gadget: udc: renesas_usb3: Fix a race in usb3_start_pipen()
usb: typec: tcpm: Respond Not_Supported if no snk_vdo
usb: typec: tcpm: Properly interrupt VDM AMS
USB: trancevibrator: fix control-request direction
usb: Restore the usb_header label
usb: typec: tcpm: Use LE to CPU conversion when accessing msg->header
usb: typec: ucsi: Clear pending after acking connector change
usb: typec: mux: Fix matching with typec_altmode_desc
misc/uss720: fix memory leak in uss720_probe
usb: dwc3: gadget: Properly track pending and queued SG
USB: usbfs: Don't WARN about excessively large memory allocations
thunderbolt: usb4: Fix NVM read buffer bounds and offset issue
thunderbolt: dma_port: Fix NVM read buffer bounds and offset issue
usb: chipidea: udc: assign interrupt number to USB gadget structure
usb: cdnsp: Fix lack of removing request from pending list.
usb: cdns3: Fix runtime PM imbalance on error
USB: serial: pl2303: add device id for ADLINK ND-6530 GC
USB: serial: ti_usb_3410_5052: add startech.com device id
...
* Another state update on exit to userspace fix
* Prevent the creation of mixed 32/64 VMs
* Fix regression with irqbypass not restarting the guest on failed connect
* Fix regression with debug register decoding resulting in overlapping access
* Commit exception state on exit to usrspace
* Fix the MMU notifier return values
* Add missing 'static' qualifiers in the new host stage-2 code
x86 fixes:
* fix guest missed wakeup with assigned devices
* fix WARN reported by syzkaller
* do not use BIT() in UAPI headers
* make the kvm_amd.avic parameter bool
PPC fixes:
* make halt polling heuristics consistent with other architectures
selftests:
* various fixes
* new performance selftest memslot_perf_test
* test UFFD minor faults in demand_paging_test
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"ARM fixes:
- Another state update on exit to userspace fix
- Prevent the creation of mixed 32/64 VMs
- Fix regression with irqbypass not restarting the guest on failed
connect
- Fix regression with debug register decoding resulting in
overlapping access
- Commit exception state on exit to usrspace
- Fix the MMU notifier return values
- Add missing 'static' qualifiers in the new host stage-2 code
x86 fixes:
- fix guest missed wakeup with assigned devices
- fix WARN reported by syzkaller
- do not use BIT() in UAPI headers
- make the kvm_amd.avic parameter bool
PPC fixes:
- make halt polling heuristics consistent with other architectures
selftests:
- various fixes
- new performance selftest memslot_perf_test
- test UFFD minor faults in demand_paging_test"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (44 commits)
selftests: kvm: fix overlapping addresses in memslot_perf_test
KVM: X86: Kill off ctxt->ud
KVM: X86: Fix warning caused by stale emulation context
KVM: X86: Use kvm_get_linear_rip() in single-step and #DB/#BP interception
KVM: x86/mmu: Fix comment mentioning skip_4k
KVM: VMX: update vcpu posted-interrupt descriptor when assigning device
KVM: rename KVM_REQ_PENDING_TIMER to KVM_REQ_UNBLOCK
KVM: x86: add start_assignment hook to kvm_x86_ops
KVM: LAPIC: Narrow the timer latency between wait_lapic_expire and world switch
selftests: kvm: do only 1 memslot_perf_test run by default
KVM: X86: Use _BITUL() macro in UAPI headers
KVM: selftests: add shared hugetlbfs backing source type
KVM: selftests: allow using UFFD minor faults for demand paging
KVM: selftests: create alias mappings when using shared memory
KVM: selftests: add shmem backing source type
KVM: selftests: refactor vm_mem_backing_src_type flags
KVM: selftests: allow different backing source types
KVM: selftests: compute correct demand paging size
KVM: selftests: simplify setup_demand_paging error handling
KVM: selftests: Print a message if /dev/kvm is missing
...
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Merge tag 's390-5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
"Fix races in vfio-ccw request handling"
* tag 's390-5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
vfio-ccw: Serialize FSM IDLE state with I/O completion
vfio-ccw: Reset FSM state to IDLE inside FSM
vfio-ccw: Check initialized flag in cp_init()
vm_create allocates memory and maps it close to GPA. This memory
is separate from what is allocated in subsequent calls to
vm_userspace_mem_region_add, so it is incorrect to pass the
test memory size to vm_create_default. Just pass a small
fixed amount of memory which can be used later for page table,
otherwise GPAs are already allocated at MEM_GPA and the
test aborts.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 small fixes, all in drivers.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Ten small fixes, all in drivers"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal
scsi: hisi_sas: Drop free_irq() of devm_request_irq() allocated irq
scsi: vmw_pvscsi: Set correct residual data length
scsi: bnx2fc: Return failure if io_req is already in ABTS processing
scsi: aic7xxx: Remove multiple definition of globals
scsi: aic7xxx: Restore several defines for aic7xxx firmware build
scsi: target: iblock: Fix smp_processor_id() BUG messages
scsi: libsas: Use _safe() loop in sas_resume_port()
scsi: target: tcmu: Fix xarray RCU warning
scsi: target: core: Avoid smp_processor_id() in preemptible code
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Merge tag 'io_uring-5.13-2021-05-28' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A few minor fixes:
- Fix an issue with hashed wait removal on exit (Zqiang, Pavel)
- Fix a recent data race introduced in this series (Marco)"
* tag 'io_uring-5.13-2021-05-28' of git://git.kernel.dk/linux-block:
io_uring: fix data race to avoid potential NULL-deref
io-wq: Fix UAF when wakeup wqe in hash waitqueue
io_uring/io-wq: close io-wq full-stop gap
- Fix error checking of BPF prog attachment in 'perf stat'.
- Fix getting maximum number of fds in the vendor events JSON parser.
- Move debug initialization earlier, fixing a segfault in some cases.
- Fix eventcode of power10 JSON events.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.13-2021-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix error checking of BPF prog attachment in 'perf stat'.
- Fix getting maximum number of fds in the vendor events JSON parser.
- Move debug initialization earlier, fixing a segfault in some cases.
- Fix eventcode of power10 JSON events.
* tag 'perf-tools-fixes-for-v5.13-2021-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf vendor events powerpc: Fix eventcode of power10 JSON events
perf stat: Fix error check for bpf_program__attach
perf debug: Move debug initialization earlier
perf jevents: Fix getting maximum number of fds
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Merge tag '5.13-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Three SMB3 fixes.
Two for stable, and the other fixes a problem pointed out with a
recently added ioctl"
* tag '5.13-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: change format of CIFS_FULL_KEY_DUMP ioctl
cifs: fix string declarations and assignments in tracepoints
cifs: set server->cipher_type to AES-128-CCM for SMB3.0
Highlights include:
Stable fixes
- Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config
- Fix Oops in xs_tcp_send_request() when transport is disconnected
- Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
Bugfixes
- Fix instances where signal_pending() should be fatal_signal_pending()
- fix an incorrect limit in filelayout_decode_layout()
- Fixes for the SUNRPC backlogged RPC queue
- Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce()
- Revert commit 586a0787ce ("Clean up rpcrdma_prepare_readch()")
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Merge tag 'nfs-for-5.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Stable fixes:
- Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config
- Fix Oops in xs_tcp_send_request() when transport is disconnected
- Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
Bugfixes:
- Fix instances where signal_pending() should be fatal_signal_pending()
- fix an incorrect limit in filelayout_decode_layout()
- Fixes for the SUNRPC backlogged RPC queue
- Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce()
- Revert commit 586a0787ce ("Clean up rpcrdma_prepare_readch()")"
* tag 'nfs-for-5.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: Remove trailing semicolon in macros
xprtrdma: Revert 586a0787ce
NFSv4: Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config
NFS: Clean up reset of the mirror accounting variables
NFS: Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce()
NFS: Fix an Oopsable condition in __nfs_pageio_add_request()
SUNRPC: More fixes for backlog congestion
SUNRPC: Fix Oops in xs_tcp_send_request() when transport is disconnected
NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
SUNRPC in case of backlog, hand free slots directly to waiting task
pNFS/NFSv4: Remove redundant initialization of 'rd_size'
NFS: fix an incorrect limit in filelayout_decode_layout()
fs/nfs: Use fatal_signal_pending instead of signal_pending
A slightly high volume at this time due to pending ASoC fixes.
While there are a few generic simple-card fixes for regressions,
most of the changes are device-specific fixes: ASoC Intel SOF, codec
clocks, other codec / platform fixes as well as usual HD-audio and
USB-audio.
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Merge tag 'sound-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A slightly high volume at this time due to pending ASoC fixes.
While there are a few generic simple-card fixes for regressions, most
of the changes are device-specific fixes: ASoC Intel SOF, codec
clocks, other codec / platform fixes as well as usual HD-audio and
USB-audio"
* tag 'sound-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (37 commits)
ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook Fury 17 G8
ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook Fury 15 G8
ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook G8
ALSA: hda/realtek: fix mute/micmute LEDs for HP 855 G8
ALSA: hda/realtek: Chain in pop reduction fixup for ThinkStation P340
ALSA: usb-audio: scarlett2: snd_scarlett_gen2_controls_create() can be static
ALSA: hda/realtek: the bass speaker can't output sound on Yoga 9i
ALSA: hda/realtek: Headphone volume is controlled by Front mixer
ALSA: usb-audio: scarlett2: Improve driver startup messages
ALSA: usb-audio: scarlett2: Fix device hang with ehci-pci
ALSA: usb-audio: fix control-request direction
ASoC: qcom: lpass-cpu: Use optional clk APIs
ASoC: cs35l33: fix an error code in probe()
ASoC: SOF: Intel: hda: don't send DAI_CONFIG IPC for older firmware
ASoC: fsl: fix SND_SOC_IMX_RPMSG dependency
ASoC: cs42l52: Minor tidy up of error paths
ASoC: cs35l32: Add missing regmap use_single config
ASoC: cs35l34: Add missing regmap use_single config
ASoC: cs42l73: Add missing regmap use_single config
ASoC: cs53l30: Add missing regmap use_single config
...
- Another state update on exit to userspace fix
- Prevent the creation of mixed 32/64 VMs
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Merge tag 'kvmarm-fixes-5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 5.13, take #2
- Another state update on exit to userspace fix
- Prevent the creation of mixed 32/64 VMs
ctxt->ud is consumed only by x86_decode_insn(), we can kill it off by
passing emulation_type to x86_decode_insn() and dropping ctxt->ud
altogether. Tracking that info in ctxt for literally one call is silly.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <1622160097-37633-2-git-send-email-wanpengli@tencent.com>
Reported by syzkaller:
WARNING: CPU: 7 PID: 10526 at linux/arch/x86/kvm//x86.c:7621 x86_emulate_instruction+0x41b/0x510 [kvm]
RIP: 0010:x86_emulate_instruction+0x41b/0x510 [kvm]
Call Trace:
kvm_mmu_page_fault+0x126/0x8f0 [kvm]
vmx_handle_exit+0x11e/0x680 [kvm_intel]
vcpu_enter_guest+0xd95/0x1b40 [kvm]
kvm_arch_vcpu_ioctl_run+0x377/0x6a0 [kvm]
kvm_vcpu_ioctl+0x389/0x630 [kvm]
__x64_sys_ioctl+0x8e/0xd0
do_syscall_64+0x3c/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xae
Commit 4a1e10d5b5 ("KVM: x86: handle hardware breakpoints during emulation())
adds hardware breakpoints check before emulation the instruction and parts of
emulation context initialization, actually we don't have the EMULTYPE_NO_DECODE flag
here and the emulation context will not be reused. Commit c8848cee74 ("KVM: x86:
set ctxt->have_exception in x86_decode_insn()) triggers the warning because it
catches the stale emulation context has #UD, however, it is not during instruction
decoding which should result in EMULATION_FAILED. This patch fixes it by moving
the second part emulation context initialization into init_emulate_ctxt() and
before hardware breakpoints check. The ctxt->ud will be dropped by a follow-up
patch.
syzkaller source: https://syzkaller.appspot.com/x/repro.c?x=134683fdd00000
Reported-by: syzbot+71271244f206d17f6441@syzkaller.appspotmail.com
Fixes: 4a1e10d5b5 (KVM: x86: handle hardware breakpoints during emulation)
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <1622160097-37633-1-git-send-email-wanpengli@tencent.com>
The kvm_get_linear_rip() handles x86/long mode cases well and has
better readability, __kvm_set_rflags() also use the paired
function kvm_is_linear_rip() to check the vcpu->arch.singlestep_rip
set in kvm_arch_vcpu_ioctl_set_guest_debug(), so change the
"CS.BASE + RIP" code in kvm_arch_vcpu_ioctl_set_guest_debug() and
handle_exception_nmi() to this one.
Signed-off-by: Yuan Yao <yuan.yao@intel.com>
Message-Id: <20210526063828.1173-1-yuan.yao@linux.intel.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The documentation had some previously incorrect information about how
userspace notifications (and responses) were handled due to a change
from a previously proposed patchset.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Acked-by: Tycho Andersen <tycho@tycho.pizza>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Fixes: 6a21cc50f0 ("seccomp: add a return code to trap to userspace")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210517193908.3113-2-sargun@sargun.me
Commit 5a517b5bf6 ("i2c: designware: Get rid of legacy platform data")
removes ./include/linux/platform_data/i2c-designware.h, but misses to
adjust the SYNOPSYS DESIGNWARE I2C DRIVER section in MAINTAINERS.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains:
warning: no file matches F: include/linux/platform_data/i2c-designware.h
Remove the file entry to this removed file as well.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixed the eventcode values in the power10 JSON event files to prepend
"0x" since these are hexadecimal values.
The patch also changes the event description of the PM_EXEC_STALL_LOAD_FINISH
and PM_EXEC_STALL_NTC_FLUSH event and move some events to correct files.
Fixes: 32daa5d789 ("perf vendor events: Initial JSON/events list for power10 platform")
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Reviewed-by: Paul A. Clarke <pc@us.ibm.com>
Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lore.kernel.org/lkml/20210525063723.1191514-1-kjain@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This reverts commit 31fae7c8b1.
Tony writes:
I just noticed this causes the following regression in Linux
next when pressing a key on uart console after boot at least on
omap3. This seems to happen on serial_port_in(port, UART_RX) in
the quirk handling.
So let's drop this.
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/YLCCJzkkB4N7LTQS@atomide.com
Fixes: 31fae7c8b1 ("serial: 8250: 8250_omap: Fix possible interrupt storm")
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Interrupt handler processes multiple message write requests one after
another, till the driver message queue is drained. However if driver
encounters a read message without preceding START, it stops the I2C
transfer as it is an invalid condition for the controller. At least the
comment describes a requirement "the controller forces us to send a new
START when we change direction". This stop results in clearing the
message queue (i2c->msg = NULL).
The code however immediately jumped back to label "retry_write" which
dereferenced the "i2c->msg" making it a possible NULL pointer
dereference.
The Coverity analysis:
1. Condition !is_msgend(i2c), taking false branch.
if (!is_msgend(i2c)) {
2. Condition !is_lastmsg(i2c), taking true branch.
} else if (!is_lastmsg(i2c)) {
3. Condition i2c->msg->flags & 1, taking true branch.
if (i2c->msg->flags & I2C_M_RD) {
4. write_zero_model: Passing i2c to s3c24xx_i2c_stop, which sets i2c->msg to NULL.
s3c24xx_i2c_stop(i2c, -EINVAL);
5. Jumping to label retry_write.
goto retry_write;
6. var_deref_model: Passing i2c to is_msgend, which dereferences null i2c->msg.
if (!is_msgend(i2c)) {"
All previous calls to s3c24xx_i2c_stop() in this interrupt service
routine are followed by jumping to end of function (acknowledging
the interrupt and returning). This seems a reasonable choice also here
since message buffer was entirely emptied.
Addresses-Coverity: Explicit null dereferenced
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The i2c controller driver do dma reset after transfer timeout,
but sometimes dma reset will trigger an unexpected DMA_ERR irq.
It will cause the i2c controller to continuously send interrupts
to the system and cause soft lock-up. So we need to disable i2c
start_en and clear intr_stat to stop i2c controller before dma
reset when transfer timeout.
Fixes: aafced673c06("i2c: mediatek: move dma reset before i2c reset")
Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
irrelevant swapout
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Merge tag 'drm-misc-fixes-2021-05-27' of ssh://git.freedesktop.org/git/drm/drm-misc into drm-fixes
A fix in meson for a crash at shutdown and one for TTM to prevent
irrelevant swapout
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210527120828.3w7f53krzkslc4ii@gilmour
It seems the bpf_program__attach() returns a negative error code instead
of a NULL pointer in case of error.
Fixes: 7fac83aaf2 ("perf stat: Introduce 'bperf' to share hardware PMCs with BPF")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Link: http://lore.kernel.org/lkml/20210527220052.1657578-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull percpu fixes from Dennis Zhou:
"This contains a cleanup to lib/percpu-refcount.c and an update to the
MAINTAINERS file to more formally take over support for lib/percpu*"
* 'for-5.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
MAINTAINERS: Add lib/percpu* as part of percpu entry
percpu_ref: Don't opencode percpu_ref_is_dying
- Don't use contiguous or block mappings for the linear map when KFENCE
is enabled.
- Fix link in the arch_counter_enforce_ordering() comment.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Don't use contiguous or block mappings for the linear map when KFENCE
is enabled.
- Fix link in the arch_counter_enforce_ordering() comment.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: don't use CON and BLK mapping if KFENCE is enabled
arm64: Fix stale link in the arch_counter_enforce_ordering() comment
- Revert DM snapshot fix from v5.13-rc3 and then properly fix crash
when an origin has no snapshots. This allows only the proper fix to
go to stable@ (since the original fix was successfully dropped).
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Merge tag 'for-5.13/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix DM verity target's 'require_signatures' module_param permissions.
- Revert DM snapshot fix from v5.13-rc3 and then properly fix crash
when an origin has no snapshots. This allows only the proper fix to
go to stable@ (since the original fix was successfully dropped).
* tag 'for-5.13/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm snapshot: properly fix a crash when an origin has no snapshots
dm snapshot: revert "fix a crash when an origin has no snapshots"
dm verity: fix require_signatures module_param permissions
The P2040/P2041 has an erratum where the normal i2c recovery mechanism
does not work. Implement the alternative recovery mechanism documented
in the P2040 Chip Errata Rev Q.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The i2c controllers on the P1010 have an erratum where the documented
scheme for i2c bus recovery will not work (A-004447). A different
mechanism is needed which is documented in the P1010 Chip Errata Rev L.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The i2c controllers on the P2040/P2041 have an erratum where the
documented scheme for i2c bus recovery will not work (A-004447). A
different mechanism is needed which is documented in the P2040 Chip
Errata Rev Q (latest available at the time of writing).
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Document the fsl,i2c-erratum-a004447 flag which indicates the presence
of an i2c erratum on some QorIQ SoCs.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-stm32f4.c:321: warning: expecting prototype for stm32f4_i2c_write_ byte()(). Prototype was for stm32f4_i2c_write_byte() instead
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-st.c:531: warning: expecting prototype for st_i2c_handle_write(). Prototype was for st_i2c_handle_read() instead
drivers/i2c/busses/i2c-st.c:566: warning: expecting prototype for st_i2c_isr(). Prototype was for st_i2c_isr_thread() instead
Fix the "enmpty" typo while here.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-pnx.c:147: warning: Function parameter or member 'alg_data' not described in 'i2c_pnx_start'
drivers/i2c/busses/i2c-pnx.c:147: warning: Excess function parameter 'adap' description in 'i2c_pnx_start'
drivers/i2c/busses/i2c-pnx.c:202: warning: Function parameter or member 'alg_data' not described in 'i2c_pnx_stop'
drivers/i2c/busses/i2c-pnx.c:202: warning: Excess function parameter 'adap' description in 'i2c_pnx_stop'
drivers/i2c/busses/i2c-pnx.c:231: warning: Function parameter or member 'alg_data' not described in 'i2c_pnx_master_xmit'
drivers/i2c/busses/i2c-pnx.c:231: warning: Excess function parameter 'adap' description in 'i2c_pnx_master_xmit'
drivers/i2c/busses/i2c-pnx.c:301: warning: Function parameter or member 'alg_data' not described in 'i2c_pnx_master_rcv'
drivers/i2c/busses/i2c-pnx.c:301: warning: Excess function parameter 'adap' description in 'i2c_pnx_master_rcv'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-ocores.c:253: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
drivers/i2c/busses/i2c-ocores.c:267: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
drivers/i2c/busses/i2c-ocores.c:299: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
drivers/i2c/busses/i2c-ocores.c:347: warning: expecting prototype for It handles an IRQ(). Prototype was for ocores_process_polling() instead
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-eg20t.c:151: warning: bad line: PCH i2c controller
drivers/i2c/busses/i2c-eg20t.c:369: warning: Function parameter or member 'msgs' not described in 'pch_i2c_writebytes'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-designware-master.c:176: warning: expecting prototype for i2c_dw_init(). Prototype was for i2c_dw_init_master() instead
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-cadence.c:157: warning: expecting prototype for enum cdns_i2c_slave_mode. Prototype was for enum cdns_i2c_slave_state instead
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-ali1563.c:24: warning: expecting prototype for i2c(). Prototype was for ALI1563_MAX_TIMEOUT() instead
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/muxes/i2c-arb-gpio-challenge.c:43: warning: Function parameter or member 'muxc' not described in 'i2c_arbitrator_select'
drivers/i2c/muxes/i2c-arb-gpio-challenge.c:43: warning: Function parameter or member 'chan' not described in 'i2c_arbitrator_select'
drivers/i2c/muxes/i2c-arb-gpio-challenge.c:86: warning: Function parameter or member 'muxc' not described in 'i2c_arbitrator_deselect'
drivers/i2c/muxes/i2c-arb-gpio-challenge.c:86: warning: Function parameter or member 'chan' not described in 'i2c_arbitrator_deselect'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/i2c/busses/i2c-nomadik.c:184: warning: Function parameter or member 'timeout' not described in 'nmk_i2c_dev'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
We missed using the variable length string macros in several
tracepoints. Fixed them in this change.
There's probably more useful macros that we can use to print
others like flags etc. But I'll submit sepawrate patches for
those at a future date.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Cc: <stable@vger.kernel.org> # v5.12
Signed-off-by: Steve French <stfrench@microsoft.com>
