Krzysztof Kozlowski says:
====================
nfc: minor printk cleanup
Changes since v1:
1. Remove unused variable in pn533 (reported by kbuild).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
nci_skb_alloc() already prints an error message on memory allocation
failure.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
nfc_mei_phy_alloc() already prints an error message on memory allocation
failure.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
nfc_mei_phy_alloc() already prints an error message on memory allocation
failure.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ftrace is a preferred and standard way to debug entering and exiting
functions so drop useless debug prints.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Print error message with reference to a device.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ftrace is a preferred and standard way to debug entering and exiting
functions so drop useless debug prints.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ftrace is a preferred and standard way to debug entering and exiting
functions so drop useless debug prints.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove unneeded line break between pr_debug and arguments.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As noted in the "Deprecated Interfaces, Language Features, Attributes,
and Conventions" documentation [1], size calculations (especially
multiplication) should not be performed in memory allocator (or similar)
function arguments due to the risk of them overflowing. This could lead
to values wrapping around and a smaller allocation being made than the
caller was expecting. Using those allocations could lead to linear
overflows of heap memory and other misbehaviors.
So, use the struct_size() helper to do the arithmetic instead of the
argument "size + count * size" in the kzalloc() function.
[1] https://www.kernel.org/doc/html/v5.14/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments
Signed-off-by: Len Baker <len.baker@gmx.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As it was reported and discussed in: https://lore.kernel.org/lkml/CAHk-=whF9F89vsfH8E9TGc0tZA-yhzi2Di8wOtquNB5vRkFX5w@mail.gmail.com/
This patch improves the stack space of qede_config_rx_mode() by
splitting filter_config() to 3 functions and removing the
union qed_filter_type_params.
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
wireless and can.
Current release - regressions:
- qrtr: revert check in qrtr_endpoint_post(), fixes audio and wifi
- ip_gre: validate csum_start only on pull
- bnxt_en: fix 64-bit doorbell operation on 32-bit kernels
- ionic: fix double use of queue-lock, fix a sleeping in atomic
- can: c_can: fix null-ptr-deref on ioctl()
- cs89x0: disable compile testing on powerpc
Current release - new code bugs:
- bridge: mcast: fix vlan port router deadlock, consistently disable BH
Previous releases - regressions:
- dsa: tag_rtl4_a: fix egress tags, only port 0 was working
- mptcp: fix possible divide by zero
- netfilter: nft_ct: protect nft_ct_pcpu_template_refcnt with mutex
- netfilter: socket: icmp6: fix use-after-scope
- stmmac: fix MAC not working when system resume back with WoL active
Previous releases - always broken:
- ip/ip6_gre: use the same logic as SIT interfaces when computing v6LL
address
- seg6: set fc_nlinfo in nh_create_ipv4, nh_create_ipv6
- mptcp: only send extra TCP acks in eligible socket states
- dsa: lantiq_gswip: fix maximum frame length
- stmmac: fix overall budget calculation for rxtx_napi
- bnxt_en: fix firmware version reporting via devlink
- renesas: sh_eth: add missing barrier to fix freeing wrong tx descriptor
Stragglers:
- netfilter: conntrack: switch to siphash
- netfilter: refuse insertion if chain has grown too large
- ncsi: add get MAC address command to get Intel i210 MAC address
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes and stragglers from Jakub Kicinski:
"Networking stragglers and fixes, including changes from netfilter,
wireless and can.
Current release - regressions:
- qrtr: revert check in qrtr_endpoint_post(), fixes audio and wifi
- ip_gre: validate csum_start only on pull
- bnxt_en: fix 64-bit doorbell operation on 32-bit kernels
- ionic: fix double use of queue-lock, fix a sleeping in atomic
- can: c_can: fix null-ptr-deref on ioctl()
- cs89x0: disable compile testing on powerpc
Current release - new code bugs:
- bridge: mcast: fix vlan port router deadlock, consistently disable
BH
Previous releases - regressions:
- dsa: tag_rtl4_a: fix egress tags, only port 0 was working
- mptcp: fix possible divide by zero
- netfilter: nft_ct: protect nft_ct_pcpu_template_refcnt with mutex
- netfilter: socket: icmp6: fix use-after-scope
- stmmac: fix MAC not working when system resume back with WoL active
Previous releases - always broken:
- ip/ip6_gre: use the same logic as SIT interfaces when computing
v6LL address
- seg6: set fc_nlinfo in nh_create_ipv4, nh_create_ipv6
- mptcp: only send extra TCP acks in eligible socket states
- dsa: lantiq_gswip: fix maximum frame length
- stmmac: fix overall budget calculation for rxtx_napi
- bnxt_en: fix firmware version reporting via devlink
- renesas: sh_eth: add missing barrier to fix freeing wrong tx
descriptor
Stragglers:
- netfilter: conntrack: switch to siphash
- netfilter: refuse insertion if chain has grown too large
- ncsi: add get MAC address command to get Intel i210 MAC address"
* tag 'net-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (76 commits)
ieee802154: Remove redundant initialization of variable ret
net: stmmac: fix MAC not working when system resume back with WoL active
net: phylink: add suspend/resume support
net: renesas: sh_eth: Fix freeing wrong tx descriptor
bonding: 3ad: pass parameter bond_params by reference
cxgb3: fix oops on module removal
can: c_can: fix null-ptr-deref on ioctl()
can: rcar_canfd: add __maybe_unused annotation to silence warning
net: wwan: iosm: Unify IO accessors used in the driver
net: wwan: iosm: Replace io.*64_lo_hi() with regular accessors
net: qcom/emac: Replace strlcpy with strscpy
ip6_gre: Revert "ip6_gre: add validation for csum_start"
net: hns3: make hclgevf_cmd_caps_bit_map0 and hclge_cmd_caps_bit_map0 static
selftests/bpf: Test XDP bonding nest and unwind
bonding: Fix negative jump label count on nested bonding
MAINTAINERS: add VM SOCKETS (AF_VSOCK) entry
stmmac: dwmac-loongson:Fix missing return value
iwlwifi: fix printk format warnings in uefi.c
net: create netdev->dev_addr assignment helpers
bnxt_en: Fix possible unintended driver initiated error recovery
...
- Page ownership tracking between host EL1 and EL2
- Rely on userspace page tables to create large stage-2 mappings
- Fix incompatibility between pKVM and kmemleak
- Fix the PMU reset state, and improve the performance of the virtual PMU
- Move over to the generic KVM entry code
- Address PSCI reset issues w.r.t. save/restore
- Preliminary rework for the upcoming pKVM fixed feature
- A bunch of MM cleanups
- a vGIC fix for timer spurious interrupts
- Various cleanups
s390:
- enable interpretation of specification exceptions
- fix a vcpu_idx vs vcpu_id mixup
x86:
- fast (lockless) page fault support for the new MMU
- new MMU now the default
- increased maximum allowed VCPU count
- allow inhibit IRQs on KVM_RUN while debugging guests
- let Hyper-V-enabled guests run with virtualized LAPIC as long as they
do not enable the Hyper-V "AutoEOI" feature
- fixes and optimizations for the toggling of AMD AVIC (virtualized LAPIC)
- tuning for the case when two-dimensional paging (EPT/NPT) is disabled
- bugfixes and cleanups, especially with respect to 1) vCPU reset and
2) choosing a paging mode based on CR0/CR4/EFER
- support for 5-level page table on AMD processors
Generic:
- MMU notifier invalidation callbacks do not take mmu_lock unless necessary
- improved caching of LRU kvm_memory_slot
- support for histogram statistics
- add statistics for halt polling and remote TLB flush requests
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- Page ownership tracking between host EL1 and EL2
- Rely on userspace page tables to create large stage-2 mappings
- Fix incompatibility between pKVM and kmemleak
- Fix the PMU reset state, and improve the performance of the virtual
PMU
- Move over to the generic KVM entry code
- Address PSCI reset issues w.r.t. save/restore
- Preliminary rework for the upcoming pKVM fixed feature
- A bunch of MM cleanups
- a vGIC fix for timer spurious interrupts
- Various cleanups
s390:
- enable interpretation of specification exceptions
- fix a vcpu_idx vs vcpu_id mixup
x86:
- fast (lockless) page fault support for the new MMU
- new MMU now the default
- increased maximum allowed VCPU count
- allow inhibit IRQs on KVM_RUN while debugging guests
- let Hyper-V-enabled guests run with virtualized LAPIC as long as
they do not enable the Hyper-V "AutoEOI" feature
- fixes and optimizations for the toggling of AMD AVIC (virtualized
LAPIC)
- tuning for the case when two-dimensional paging (EPT/NPT) is
disabled
- bugfixes and cleanups, especially with respect to vCPU reset and
choosing a paging mode based on CR0/CR4/EFER
- support for 5-level page table on AMD processors
Generic:
- MMU notifier invalidation callbacks do not take mmu_lock unless
necessary
- improved caching of LRU kvm_memory_slot
- support for histogram statistics
- add statistics for halt polling and remote TLB flush requests"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (210 commits)
KVM: Drop unused kvm_dirty_gfn_invalid()
KVM: x86: Update vCPU's hv_clock before back to guest when tsc_offset is adjusted
KVM: MMU: mark role_regs and role accessors as maybe unused
KVM: MIPS: Remove a "set but not used" variable
x86/kvm: Don't enable IRQ when IRQ enabled in kvm_wait
KVM: stats: Add VM stat for remote tlb flush requests
KVM: Remove unnecessary export of kvm_{inc,dec}_notifier_count()
KVM: x86/mmu: Move lpage_disallowed_link further "down" in kvm_mmu_page
KVM: x86/mmu: Relocate kvm_mmu_page.tdp_mmu_page for better cache locality
Revert "KVM: x86: mmu: Add guest physical address check in translate_gpa()"
KVM: x86/mmu: Remove unused field mmio_cached in struct kvm_mmu_page
kvm: x86: Increase KVM_SOFT_MAX_VCPUS to 710
kvm: x86: Increase MAX_VCPUS to 1024
kvm: x86: Set KVM_MAX_VCPU_ID to 4*KVM_MAX_VCPUS
KVM: VMX: avoid running vmx_handle_exit_irqoff in case of emulation
KVM: x86/mmu: Don't freak out if pml5_root is NULL on 4-level host
KVM: s390: index kvm->arch.idle_mask by vcpu_idx
KVM: s390: Enable specification exception interpretation
KVM: arm64: Trim guest debug exception handling
KVM: SVM: Add 5-level page table support for SVM
...
Pull dmi fix from Jean Delvare.
Unbreak some existing udev/hwdb modalias matches due to misplaced
product_sku field.
* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
firmware: dmi: Move product_sku info to the end of the modalias
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Merge tag 'ntb-5.15' of git://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"Bug fixes and clean-ups for Linux v5.15"
* tag 'ntb-5.15' of git://github.com/jonmason/ntb:
NTB: switch from 'pci_' to 'dma_' API
ntb: ntb_pingpong: remove redundant initialization of variables msg_data and spad_data
NTB: perf: Fix an error code in perf_setup_inbuf()
NTB: Fix an error code in ntb_msit_probe()
ntb: intel: remove invalid email address in header comment
This moves the crash recovery worker to the freezable work queue to
avoid interaction with other drivers during suspend & resume. It fixes a
couple of typos in comments.
It adds support for handling the audio DSP on SDM660 and it fixes a race
between the Qualcomm wireless subsystem driver and the associated driver
for the RF chip.
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Merge tag 'rproc-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
- move the crash recovery worker to the freezable work queue to avoid
interaction with other drivers during suspend & resume
- fix a couple of typos in comments
- add support for handling the audio DSP on SDM660
- fix a race between the Qualcomm wireless subsystem driver and the
associated driver for the RF chip
* tag 'rproc-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
remoteproc: q6v5_pas: Add sdm660 ADSP PIL compatible
dt-bindings: remoteproc: qcom: adsp: Add SDM660 ADSP
remoteproc: use freezable workqueue for crash notifications
remoteproc: fix kernel doc for struct rproc_ops
remoteproc: fix an typo in fw_elf_get_class code comments
remoteproc: qcom: wcnss: Fix race with iris probe
- Add support for registering devices via MFD cells to Simple MFD (I2C)
- New Drivers
- Add support for Renesas Synchronization Management Unit (SMU)
- New Device Support
- Add support for N5010 to Intel M10 BMC
- Add support for Cannon Lake to Intel LPSS ACPI
- Add support for Samsung SSG{1,2} to ST-Ericsson's U8500 family
- Add support for TQMx110EB and TQMxE40x to TQ-Systems PLD TQMx86
- New Functionality
- Add support for GPIO to Intel LPC ICH
- Add support for Reset to Texas Instruments TPS65086
- Fix-ups
- Trivial, sorting, whitespace, renaming, etc; mt6360-core, db8500-prcmu-regs, tqmx86
- Device Tree fiddling; syscon, axp20x, qcom,pm8008, ti,tps65086, brcm,cru
- Use proper APIs for IRQ map resolution; ab8500-core, stmpe, tc3589x, wm8994-irq
- Pass 'supplied-from' property through axp288_fuel_gauge via swnode
- Remove unused file entry; MAINTAINERS
- Make interrupt line optional; tps65086
- Rename db8500-cpuidle driver symbol; db8500-prcmu
- Remove support for unused hardware; tqmx86
- Provide a standard LPC clock frequency for unknown boards; tqmx86
- Remove unused code; ti_am335x_tscadc
- Use of_iomap() instead of ioremap(); syscon
- Bug Fixes
- Clear GPIO IRQ resource flags when no IRQ is set; tqmx86
- Fix incorrect/misleading frequencies; db8500-prcmu
- Mitigate namespace clash with other GPIOBASE users
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Merge tag 'mfd-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Frameworks:
- Add support for registering devices via MFD cells to Simple MFD (I2C)
New Drivers:
- Add support for Renesas Synchronization Management Unit (SMU)
New Device Support:
- Add support for N5010 to Intel M10 BMC
- Add support for Cannon Lake to Intel LPSS ACPI
- Add support for Samsung SSG{1,2} to ST-Ericsson's U8500 family
- Add support for TQMx110EB and TQMxE40x to TQ-Systems PLD TQMx86
New Functionality:
- Add support for GPIO to Intel LPC ICH
- Add support for Reset to Texas Instruments TPS65086
Fix-ups:
- Trivial, sorting, whitespace, renaming, etc; mt6360-core, db8500-prcmu-regs, tqmx86
- Device Tree fiddling; syscon, axp20x, qcom,pm8008, ti,tps65086, brcm,cru
- Use proper APIs for IRQ map resolution; ab8500-core, stmpe, tc3589x, wm8994-irq
- Pass 'supplied-from' property through axp288_fuel_gauge via swnode
- Remove unused file entry; MAINTAINERS
- Make interrupt line optional; tps65086
- Rename db8500-cpuidle driver symbol; db8500-prcmu
- Remove support for unused hardware; tqmx86
- Provide a standard LPC clock frequency for unknown boards; tqmx86
- Remove unused code; ti_am335x_tscadc
- Use of_iomap() instead of ioremap(); syscon
Bug Fixes:
- Clear GPIO IRQ resource flags when no IRQ is set; tqmx86
- Fix incorrect/misleading frequencies; db8500-prcmu
- Mitigate namespace clash with other GPIOBASE users"
* tag 'mfd-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (31 commits)
mfd: lpc_sch: Rename GPIOBASE to prevent build error
mfd: syscon: Use of_iomap() instead of ioremap()
dt-bindings: mfd: Add Broadcom CRU
mfd: ti_am335x_tscadc: Delete superfluous error message
mfd: tqmx86: Assume 24MHz LPC clock for unknown boards
mfd: tqmx86: Add support for TQ-Systems DMI IDs
mfd: tqmx86: Add support for TQMx110EB and TQMxE40x
mfd: tqmx86: Fix typo in "platform"
mfd: tqmx86: Remove incorrect TQMx90UC board ID
mfd: tqmx86: Clear GPIO IRQ resource when no IRQ is set
mfd: simple-mfd-i2c: Add support for registering devices via MFD cells
mfd/cpuidle: ux500: Rename driver symbol
mfd: tps65086: Add cell entry for reset driver
mfd: tps65086: Make interrupt line optional
dt-bindings: mfd: Convert tps65086.txt to YAML
MAINTAINERS: Adjust ARM/NOMADIK/Ux500 ARCHITECTURES to file renaming
mfd: db8500-prcmu: Handle missing FW variant
mfd: db8500-prcmu: Rename register header
mfd: axp20x: Add supplied-from property to axp288_fuel_gauge cell
mfd: Don't use irq_create_mapping() to resolve a mapping
...
- new driver: gpio-virtio allowing a guest VM running linux to access
GPIO lines provided by the host
- split the GPIO driver out of the rockchip pin control driver
- add support for a new model to gpio-aspeed-sgpio, refactor the driver
and use generic device property interfaces, improve property sanitization
- add ACPI support to gpio-tegra186
- improve the code setting the line names to support multiple GPIO banks
per device
- constify a bunch of OF functions in the core GPIO code and make the
declaration for one of the core OF functions we use consistent within its
header
- use software nodes in intel_quark_i2c_gpio
- add support for the gpio-line-names property in gpio-mt7621
- use the standard GPIO function for setting the GPIO names in gpio-brcmstb
- fix a bunch of leaks and other bugs in gpio-mpc8xxx
- use generic pm callbacks in gpio-ml-ioh
- improve resource management and PM handling in gpio-mlxbf2
- modernize and improve the gpio-dwapb driver
- coding style improvements in gpio-rcar
- documentation fixes and improvements
- update the MAINTAINERS entry for gpio-zynq
- minor tweaks in several drivers
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Merge tag 'gpio-updates-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We mostly have various improvements and refactoring all over the place
but also some interesting new features - like the virtio GPIO driver
that allows guest VMs to use host's GPIOs. We also have a new/old GPIO
driver for rockchip - this one has been split out of the pinctrl
driver.
Summary:
- new driver: gpio-virtio allowing a guest VM running linux to access
GPIO lines provided by the host
- split the GPIO driver out of the rockchip pin control driver
- add support for a new model to gpio-aspeed-sgpio, refactor the
driver and use generic device property interfaces, improve property
sanitization
- add ACPI support to gpio-tegra186
- improve the code setting the line names to support multiple GPIO
banks per device
- constify a bunch of OF functions in the core GPIO code and make the
declaration for one of the core OF functions we use consistent
within its header
- use software nodes in intel_quark_i2c_gpio
- add support for the gpio-line-names property in gpio-mt7621
- use the standard GPIO function for setting the GPIO names in
gpio-brcmstb
- fix a bunch of leaks and other bugs in gpio-mpc8xxx
- use generic pm callbacks in gpio-ml-ioh
- improve resource management and PM handling in gpio-mlxbf2
- modernize and improve the gpio-dwapb driver
- coding style improvements in gpio-rcar
- documentation fixes and improvements
- update the MAINTAINERS entry for gpio-zynq
- minor tweaks in several drivers"
* tag 'gpio-updates-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (35 commits)
gpio: mpc8xxx: Use 'devm_gpiochip_add_data()' to simplify the code and avoid a leak
gpio: mpc8xxx: Fix a potential double iounmap call in 'mpc8xxx_probe()'
gpio: mpc8xxx: Fix a resources leak in the error handling path of 'mpc8xxx_probe()'
gpio: viperboard: remove platform_set_drvdata() call in probe
gpio: virtio: Add missing mailings lists in MAINTAINERS entry
gpio: virtio: Fix sparse warnings
gpio: remove the obsolete MX35 3DS BOARD MC9S08DZ60 GPIO functions
gpio: max730x: Use the right include
gpio: Add virtio-gpio driver
gpio: mlxbf2: Use DEFINE_RES_MEM_NAMED() helper macro
gpio: mlxbf2: Use devm_platform_ioremap_resource()
gpio: mlxbf2: Drop wrong use of ACPI_PTR()
gpio: mlxbf2: Convert to device PM ops
gpio: dwapb: Get rid of legacy platform data
mfd: intel_quark_i2c_gpio: Convert GPIO to use software nodes
gpio: dwapb: Read GPIO base from gpio-base property
gpio: dwapb: Unify ACPI enumeration checks in get_irq() and configure_irqs()
gpiolib: Deduplicate forward declaration in the consumer.h header
MAINTAINERS: update gpio-zynq.yaml reference
gpio: tegra186: Add ACPI support
...
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Merge tag 'fuse-update-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Allow mounting an active fuse device. Previously the fuse device
would always be mounted during initialization, and sharing a fuse
superblock was only possible through mount or namespace cloning
- Fix data flushing in syncfs (virtiofs only)
- Fix data flushing in copy_file_range()
- Fix a possible deadlock in atomic O_TRUNC
- Misc fixes and cleanups
* tag 'fuse-update-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: remove unused arg in fuse_write_file_get()
fuse: wait for writepages in syncfs
fuse: flush extending writes
fuse: truncate pagecache on atomic_o_trunc
fuse: allow sharing existing sb
fuse: move fget() to fuse_get_tree()
fuse: move option checking into fuse_fill_super()
fuse: name fs_context consistently
fuse: fix use after free in fuse_read_interrupt()
Changes for kgdb/kdb this cycle are dominated by a change from
Sumit that removes as small (256K) private heap from kdb. This is
change I've hoped for ever since I discovered how few users of this
heap remained in the kernel, so many thanks to Sumit for hunting
these down. Other change is an incremental step towards SPDX headers.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
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Merge tag 'kgdb-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
Pull kgdb updates from Daniel Thompson:
"Changes for kgdb/kdb this cycle are dominated by a change from Sumit
that removes as small (256K) private heap from kdb. This is change
I've hoped for ever since I discovered how few users of this heap
remained in the kernel, so many thanks to Sumit for hunting these
down.
The other change is an incremental step towards SPDX headers"
* tag 'kgdb-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kernel: debug: Convert to SPDX identifier
kdb: Rename members of struct kdbtab_t
kdb: Simplify kdb_defcmd macro logic
kdb: Get rid of redundant kdb_register_flags()
kdb: Rename struct defcmd_set to struct kdb_macro
kdb: Get rid of custom debug heap allocator
This reverts commit b655843444.
Just like with the memcg lock accounting, the kernel test robot reports
a sizeable performance regression for this commit, and while it clearly
does the rigth thing in theory, we'll need to look at just how to avoid
or minimize the performance overhead of the memcg accounting.
People already have suggestions on how to do that, but it's "future
work".
So revert it for now.
[ Note: the first link below is for this same commit but a different
commit ID, because it's the kernel test robot ended up noticing it in
Andrew Morton's patch queue ]
Link: https://lore.kernel.org/lkml/20210905132732.GC15026@xsang-OptiPlex-9020/
Link: https://lore.kernel.org/lkml/20210907150757.GE17617@xsang-OptiPlex-9020/
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 0f12156dff.
The kernel test robot reports a sizeable performance regression for this
commit, and while it clearly does the rigth thing in theory, we'll need
to look at just how to avoid or minimize the performance overhead of the
memcg accounting.
People already have suggestions on how to do that, but it's "future
work".
So revert it for now.
Link: https://lore.kernel.org/lkml/20210907150757.GE17617@xsang-OptiPlex-9020/
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 9857a17f20.
That commit was completely broken, and I should have caught on to it
earlier. But happily, the kernel test robot noticed the breakage fairly
quickly.
The breakage is because "try_get_page()" is about avoiding the page
reference count overflow case, but is otherwise the exact same as a
plain "get_page()".
In contrast, "try_get_compound_head()" is an entirely different beast,
and uses __page_cache_add_speculative() because it's not just about the
page reference count, but also about possibly racing with the underlying
page going away.
So all the commentary about how
"try_get_page() has fallen a little behind in terms of maintenance,
try_get_compound_head() handles speculative page references more
thoroughly"
was just completely wrong: yes, try_get_compound_head() handles
speculative page references, but the point is that try_get_page() does
not, and must not.
So there's no lack of maintainance - there are fundamentally different
semantics.
A speculative page reference would be entirely wrong in "get_page()",
and it's entirely wrong in "try_get_page()". It's not about
speculation, it's purely about "uhhuh, you can't get this page because
you've tried to increment the reference count too much already".
The reason the kernel test robot noticed this bug was that it hit the
VM_BUG_ON() in __page_cache_add_speculative(), which is all about
verifying that the context of any speculative page access is correct.
But since that isn't what try_get_page() is all about, the VM_BUG_ON()
tests things that are not correct to test for try_get_page().
Reported-by: kernel test robot <oliver.sang@intel.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The variable ret is being initialized with a value that is never read, it
is being updated later on. The assignment is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joakim Zhang says:
====================
net: stmmac: fix WoL issue
This patch set fixes stmmac not working after system resume back with WoL
active. Thanks a lot for Russell King keeps looking into this issue.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We can reproduce this issue with below steps:
1) enable WoL on the host
2) host system suspended
3) remote client send out wakeup packets
We can see that host system resume back, but can't work, such as ping failed.
After a bit digging, this issue is introduced by the commit 46f69ded98
("net: stmmac: Use resolved link config in mac_link_up()"), which use
the finalised link parameters in mac_link_up() rather than the
parameters in mac_config().
There are two scenarios for MAC suspend/resume in STMMAC driver:
1) MAC suspend with WoL inactive, stmmac_suspend() call
phylink_mac_change() to notify phylink machine that a change in MAC
state, then .mac_link_down callback would be invoked. Further, it will
call phylink_stop() to stop the phylink instance. When MAC resume back,
firstly phylink_start() is called to start the phylink instance, then
call phylink_mac_change() which will finally trigger phylink machine to
invoke .mac_config and .mac_link_up callback. All is fine since
configuration in these two callbacks will be initialized, that means MAC
can restore the state.
2) MAC suspend with WoL active, phylink_mac_change() will put link
down, but there is no phylink_stop() to stop the phylink instance, so it
will link up again, that means .mac_config and .mac_link_up would be
invoked before system suspended. After system resume back, it will do
DMA initialization and SW reset which let MAC lost the hardware setting
(i.e MAC_Configuration register(offset 0x0) is reset). Since link is up
before system suspended, so .mac_link_up would not be invoked after
system resume back, lead to there is no chance to initialize the
configuration in .mac_link_up callback, as a result, MAC can't work any
longer.
After discussed with Russell King [1], we confirm that phylink framework
have not take WoL into consideration yet. This patch calls
phylink_suspend()/phylink_resume() functions which is newly introduced
by Russell King to fix this issue.
[1] https://lore.kernel.org/netdev/20210901090228.11308-1-qiangqing.zhang@nxp.com/
Fixes: 46f69ded98 ("net: stmmac: Use resolved link config in mac_link_up()")
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joakim Zhang reports that Wake-on-Lan with the stmmac ethernet driver broke
when moving the incorrect handling of mac link state out of mac_config().
This reason this breaks is because the stmmac's WoL is handled by the MAC
rather than the PHY, and phylink doesn't cater for that scenario.
This patch adds the necessary phylink code to handle suspend/resume events
according to whether the MAC still needs a valid link or not. This is the
barest minimum for this support.
Reported-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Tested-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The cur_tx counter must be incremented after TACT bit of
txdesc->status was set. However, a CPU is possible to reorder
instructions and/or memory accesses between cur_tx and
txdesc->status. And then, if TX interrupt happened at such a
timing, the sh_eth_tx_free() may free the descriptor wrongly.
So, add wmb() before cur_tx++.
Otherwise NETDEV WATCHDOG timeout is possible to happen.
Fixes: 86a74ff21a ("net: sh_eth: add support for Renesas SuperH Ethernet")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The parameter bond_params is a relatively large 192 byte sized
struct so pass it by reference rather than by value to reduce
copying.
Addresses-Coverity: ("Big parameter passed by value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-fixes-for-5.15-20210907' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
linux-can-fixes-for-5.15-20210907
Signed-off-by: David S. Miller <davem@davemloft.net>
First set of fixes for v5.15 and only iwlwifi patches this time. Most
important being support for new hardware and new firmware API.
I had already earlier applied a fix which also Linus applied to this
tree as commit 1476ff21ab ("iwl: fix debug printf format strings"),
but this doesn't seem to cause any conflicts so I left it there.
iwlwifi
* add support for firmware API 66
* add support for Samsung Galaxy Book Flex2 Alpha
* fix a leak happening every time module is loaded
* fix a printk compiler warning
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Merge tag 'wireless-drivers-2021-09-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for v5.15
First set of fixes for v5.15 and only iwlwifi patches this time. Most
important being support for new hardware and new firmware API.
I had already earlier applied a fix which also Linus applied to this
tree as commit 1476ff21ab ("iwl: fix debug printf format strings"),
but this doesn't seem to cause any conflicts so I left it there.
iwlwifi
* add support for firmware API 66
* add support for Samsung Galaxy Book Flex2 Alpha
* fix a leak happening every time module is loaded
* fix a printk compiler warning
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
One MIPS platform (mach-rc32434) defines GPIOBASE. This macro
conflicts with one of the same name in lpc_sch.c. Rename the latter one
to prevent the build error.
../drivers/mfd/lpc_sch.c:25: error: "GPIOBASE" redefined [-Werror]
25 | #define GPIOBASE 0x44
../arch/mips/include/asm/mach-rc32434/rb.h:32: note: this is the location of the previous definition
32 | #define GPIOBASE 0x050000
Cc: Denis Turischev <denis@compulab.co.il>
Fixes: e82c60ae7d ("mfd: Introduce lpc_sch for Intel SCH LPC bridge")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This automatically selects between ioremap() and ioremap_np() on
platforms that require it, such as Apple SoCs.
Signed-off-by: Hector Martin <marcan@marcan.st>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The pdev maybe not a platform device, e.g. c_can_pci device, in this
case, calling to_platform_device() would not make sense. Also, per the
comment in drivers/net/can/c_can/c_can_ethtool.c, @bus_info should
match dev_name() string, so I am replacing this with dev_name() to fix
this issue.
[ 1.458583] BUG: unable to handle page fault for address: 0000000100000000
[ 1.460921] RIP: 0010:strnlen+0x1a/0x30
[ 1.466336] ? c_can_get_drvinfo+0x65/0xb0 [c_can]
[ 1.466597] ethtool_get_drvinfo+0xae/0x360
[ 1.466826] dev_ethtool+0x10f8/0x2970
[ 1.467880] sock_ioctl+0xef/0x300
Fixes: 2722ac986e ("can: c_can: add ethtool support")
Link: https://lore.kernel.org/r/20210906233704.1162666-1-ztong0001@gmail.com
Cc: stable@vger.kernel.org # 5.14+
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Since commit
| dd3bd23eb4 ("can: rcar_canfd: Add Renesas R-Car CAN FD driver")
the rcar_canfd driver can be compile tested on all architectures. On
non OF enabled archs, or archs where OF is optional (and disabled in
the .config) the compilation throws the following warning:
| drivers/net/can/rcar/rcar_canfd.c:2020:34: warning: unused variable 'rcar_canfd_of_table' [-Wunused-const-variable]
| static const struct of_device_id rcar_canfd_of_table[] = {
| ^
This patch fixes the warning by marking the variable
rcar_canfd_of_table as __maybe_unused.
Fixes: ac42240873 ("can: rcar: Kconfig: Add helper dependency on COMPILE_TEST")
Fixes: dd3bd23eb4 ("can: rcar_canfd: Add Renesas R-Car CAN FD driver")
Link: https://lore.kernel.org/all/20210907064537.1054268-1-mkl@pengutronix.de
Cc: linux-renesas-soc@vger.kernel.org
Cc: Cai Huoqing <caihuoqing@baidu.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The tb_test_credit_alloc_all() function had a huge number of
KUNIT_ASSERT() statements, all of which (though the magic of many many
layers of inscrutable macros) ended up allocating and initializing
various test assertion structures on the stack.
Don't do that. The kernel stack isn't infinite, and we have compiler
warnings (now errors) for the case where a stack frame grows too large.
Like it did here, by not an inconsiderable margin:
drivers/thunderbolt/test.c: In function ‘tb_test_credit_alloc_all’:
drivers/thunderbolt/test.c:2367:1: error: the frame size of 4500 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
2367 | }
| ^
Solve this similarly to the lib/test_scanf case: split out the tests
into several smaller functions, each just testing one particular tunnel
credit allocation.
This makes the i386 allyesconfig build work for me again.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It turns out that gcc has real trouble merging all the temporary
on-stack buffer allocation. So despite the fact that their lifetimes do
not overlap, gcc will allocate stack for all of them when they have
different types. Which they do in the number scanning test routines.
This is unfortunate in general, but with lots of test-cases in one
function, it becomes a real problem. gcc will allocate a huge stack
frame for no actual good reason.
We have tried to counteract this tendency of gcc not merging stack slots
(see "-fconserve-stack"), but that has limited effect (and should be on
by default these days, iirc).
So with all the debug options enabled on an i386 allmodconfig build, we
end up with overly big stack frames, and the resulting stack frame size
warnings (now errors):
lib/test_scanf.c: In function ‘numbers_list_field_width_val_width’:
lib/test_scanf.c:530:1: error: the frame size of 2088 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
530 | }
| ^
lib/test_scanf.c: In function ‘numbers_list_field_width_typemax’:
lib/test_scanf.c:488:1: error: the frame size of 2568 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
488 | }
| ^
lib/test_scanf.c: In function ‘numbers_list’:
lib/test_scanf.c:437:1: error: the frame size of 2088 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
437 | }
| ^
In this particular case, the reasonably straightforward solution is to
just split out the test routines into multiple more targeted versions.
That way we don't have one huge stack, but several smaller ones, and
they aren't active all at the same time.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The variable 'package_size' is an unsigned long, and should be printed
out using '%lu', not '%zd' (that would be for a size_t).
Yes, on many architectures (including x86-64), 'size_t' is in fact the
same type as 'long', but that's a fairly random architecture definition,
and on some platforms 'size_t' is in fact 'int' rather than 'long'.
That is the case on traditional 32-bit x86. Yes, both types are the
exact same 32-bit size, and it would all print out perfectly correctly,
but '%zd' ends up still being wrong.
And we can't make 'package_size' be a 'size_t', because we get the
actual value using efivar_entry_get() that takes a pointer to an
'unsigned long'. So '%lu' it is.
This fixes two of the i386 allmodconfig build warnings (that is now an
error due to -Werror).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'block-5.15-2021-09-05' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Was going to send this one in later this week, but given that -Werror
is now enabled (or at least available), the mq-deadline fix really
should go in for the folks hitting that.
- Ensure dd_queued() is only there if needed (Geert)
- Fix a kerneldoc warning for bio_alloc_kiocb()
- BFQ fix for queue merging
- loop locking fix (Tetsuo)"
* tag 'block-5.15-2021-09-05' of git://git.kernel.dk/linux-block:
loop: reduce the loop_ctl_mutex scope
bio: fix kerneldoc documentation for bio_alloc_kiocb()
block, bfq: honor already-setup queue merges
block/mq-deadline: Move dd_queued() to fix defined but not used warning
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Merge tag 'misc-5.15-2021-09-05' of git://git.kernel.dk/linux-block
Pull CDROM maintainer update from Jens Axboe:
"It's been about 22 years since I originally started maintaining the
CDROM code, and I just haven't been able to even get reviews done in a
timely fashion the last handful of years.
Time to pass it on, and Phillip has volunteered take over these
duties. I'll be helping as needed for the foreseeable future"
* tag 'misc-5.15-2021-09-05' of git://git.kernel.dk/linux-block:
cdrom: update uniform CD-ROM maintainership in MAINTAINERS file
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Merge tag 'libata-5.15-2021-09-05' of git://git.kernel.dk/linux-block
Pull libata fixes from Jens Axboe:
"Fixes for queued trim on certain Samsung SSDs, in conjunction with
certain ATI controllers"
* tag 'libata-5.15-2021-09-05' of git://git.kernel.dk/linux-block:
libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD.
libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs
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Merge tag 'for-5.15/io_uring-2021-09-04' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"As sometimes happens, two reports came in around the merge window open
that led to some fixes. Hence this one is a bit bigger than usual
followup fixes, but most of it will be going towards stable, outside
of the fixes that are addressing regressions from this merge window.
In detail:
- postgres is a heavy user of signals between tasks, and if we're
unlucky this can interfere with io-wq worker creation. Make sure
we're resilient against unrelated signal handling. This set of
changes also includes hardening against allocation failures, which
could previously had led to stalls.
- Some use cases that end up having a mix of bounded and unbounded
work would have starvation issues related to that. Split the
pending work lists to handle that better.
- Completion trace int -> unsigned -> long fix
- Fix issue with REGISTER_IOWQ_MAX_WORKERS and SQPOLL
- Fix regression with hash wait lock in this merge window
- Fix retry issued on block devices (Ming)
- Fix regression with links in this merge window (Pavel)
- Fix race with multi-shot poll and completions (Xiaoguang)
- Ensure regular file IO doesn't inadvertently skip completion
batching (Pavel)
- Ensure submissions are flushed after running task_work (Pavel)"
* tag 'for-5.15/io_uring-2021-09-04' of git://git.kernel.dk/linux-block:
io_uring: io_uring_complete() trace should take an integer
io_uring: fix possible poll event lost in multi shot mode
io_uring: prolong tctx_task_work() with flushing
io_uring: don't disable kiocb_done() CQE batching
io_uring: ensure IORING_REGISTER_IOWQ_MAX_WORKERS works with SQPOLL
io-wq: make worker creation resilient against signals
io-wq: get rid of FIXED worker flag
io-wq: only exit on fatal signals
io-wq: split bounded and unbounded work into separate lists
io-wq: fix queue stalling race
io_uring: don't submit half-prepared drain request
io_uring: fix queueing half-created requests
io-wq: ensure that hash wait lock is IRQ disabling
io_uring: retry in case of short read on block device
io_uring: IORING_OP_WRITE needs hash_reg_file set
io-wq: fix race between adding work and activating a free worker
Currently we have readl()/writel()/ioread*()/iowrite*() APIs in use.
Let's unify to use only ioread*()/iowrite*() variants.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The io.*_lo_hi() variants are not strictly needed on the x86 hardware
and especially the PCI bus. Replace them with regular accessors, but
leave headers in place in case of 32-bit build.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The strlcpy should not be used because it doesn't limit the source
length. As linus says, it's a completely useless function if you
can't implicitly trust the source string - but that is almost always
why people think they should use it! All in all the BSD function
will lead some potential bugs.
But the strscpy doesn't require reading memory from the src string
beyond the specified "count" bytes, and since the return value is
easier to error-check than strlcpy()'s. In addition, the implementation
is robust to the string changing out from underneath it, unlike the
current strlcpy() implementation.
Thus, We prefer using strscpy instead of strlcpy.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 9cf448c200.
This commit was added for equivalence with a similar fix to ip_gre.
That fix proved to have a bug. Upon closer inspection, ip6_gre is not
susceptible to the original bug.
So revert the unnecessary extra check.
In short, ipgre_xmit calls skb_pull to remove ipv4 headers previously
inserted by dev_hard_header. ip6gre_tunnel_xmit does not.
Link: https://lore.kernel.org/netdev/CA+FuTSe+vJgTVLc9SojGuN-f9YQ+xWLPKE_S4f=f+w+_P2hgUg@mail.gmail.com/#t
Fixes: 9cf448c200 ("ip6_gre: add validation for csum_start")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller
Krzysztof Kozlowski
Len Baker
Shai Malin
Linus Torvalds
Colin Ian King
Joakim Zhang
Russell King (Oracle)
Yoshihiro Shimoda
Heiner Kallweit
Randy Dunlap
Hector Martin
Tong Zhang
Marc Kleine-Budde
Stephen Rothwell
Andy Shevchenko
Jason Wang
Willem de Bruijn