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Add layer 2 control packet traps such as STP and IGMP query, so that
capable device drivers could register them with devlink. Add
documentation for every added packet trap and packet trap group.
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This type is used for traps that trap control packets such as ARP
request and IGMP query to the CPU.
Do not report such packets to the kernel's drop monitor as they were not
dropped by the device no encountered an exception during forwarding.
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The action is used by control traps such as IGMP query. The packet is
flooded by the device, but also trapped to the CPU in order for the
software bridge to mark the receiving port as a multicast router port.
Such packets are marked with 'skb->offload_fwd_mark = 1' in order to
prevent the software bridge from flooding them again.
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The layer 3 exceptions are still subject to the same trap policer, so
nothing changes, but user space can choose to assign a different one.
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The layer 3 exceptions are still subject to the same trap policer, so
nothing changes, but user space can choose to assign a different one.
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Packets that hit exceptions during layer 3 forwarding must be trapped to
the CPU for the control plane to function properly. Create a dedicated
group for them, so that user space could choose to assign a different
policer for them.
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for net-next
to extend ctnetlink and the flowtable infrastructure:
1) Extend ctnetlink kernel side netlink dump filtering capabilities,
from Romain Bellan.
2) Generalise the flowtable hook parser to take a hook list.
3) Pass a hook list to the flowtable hook registration/unregistration.
4) Add a helper function to release the flowtable hook list.
5) Update the flowtable event notifier to pass a flowtable hook list.
6) Allow users to add new devices to an existing flowtables.
7) Allow users to remove devices to an existing flowtables.
8) Allow for registering a flowtable with no initial devices.
====================
Signed-off-by: David S. Miller <[email protected]>
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When enable clk_ref failed, clk_ptp should be disabled rather than
clk_ref itself.
Signed-off-by: Liu Xiang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The removal of mips_swiotlb_ops exposed a problem in octeon_mgmt Ethernet
driver. mips_swiotlb_ops had an mb() after most of the operations and the
removal of the ops had broken the receive functionality of the driver.
My code inspection has shown no other places except
octeon_mgmt_rx_fill_ring() where an explicit barrier would be obviously
missing. The latter function however has to make sure that "ringing the
bell" doesn't happen before RX ring entry is really written.
The patch has been successfully tested on Octeon II.
Fixes: a999933db9ed ("MIPS: remove mips_swiotlb_ops")
Cc: [email protected]
Signed-off-by: Alexander Sverdlin <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"The big change in this release is that Matti Vaittinen has factored
out the linear ranges support into a separate library in lib/ since it
is also useful for at least the power subsystem (and most likely
others too), it helps subsystems which need to map register values
into more useful real world values do so with minimal per-driver code.
- Factoring out of the linear ranges support into a library in lib/
from Matti Vaittinen.
- Trace points for bypass mode.
- Use the consumer name in debugfs to make it easier to understand.
- New drivers for Maxim MAX77826 and MAX8998"
* tag 'regulator-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (23 commits)
regulator: max8998: max8998_set_current_limit() can be static
dt-bindings: regulator: Convert anatop regulator to json-schema
regulator: core: Add regulator bypass trace points
regulator: extract voltage balancing code to the separate function
regulator/mfd: max8998: Document charger regulator
regulator: max8998: Add charger regulator
MAINTAINERS: Add maintainer entry for linear ranges helper
regulator: bd718x7: remove voltage change restriction from BD71847 LDOs
lib: linear_ranges: Add missing MODULE_LICENSE()
regulator: use linear_ranges helper
power: supply: bd70528: rename linear_range to avoid collision
lib/test_linear_ranges: add a test for the 'linear_ranges'
lib: add linear ranges helpers
regulator: db8500-prcmu: Use true,false for bool variable
regulator: bd718x7: remove voltage change restriction from BD71847
regulator: max77826: Remove erroneous additionalProperties
regulator: qcom-rpmh: Fix typos in pm8150 and pm8150l
regulator: Document bindings for max77826
regulator: max77826: Add max77826 regulator driver
regulator: tps80031: remove redundant assignment to variables ret and val
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"This has been a very active release for the DesignWare driver in
particular - after a long period of inactivity we have had a lot of
people actively working on it for unrelated reasons this cycle with
some of that work still not landed.
Otherwise it's been fairly quiet for the subsystem.
Highlights include:
- Lots of performance improvements and fixes for the DesignWare
driver from Serge Semin, Andy Shevchenko, Wan Ahmad Zainie, Clement
Leger, Dinh Nguyen and Jarkko Nikula.
- Support for octal mode transfers in spidev.
- Slave mode support for the Rockchip drivers.
- Support for AMD controllers, Broadcom mspi and Raspberry Pi 4, and
Intel Elkhart Lake"
* tag 'spi-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (125 commits)
spi: spi-fsl-dspi: fix native data copy
spi: Convert DW SPI binding to DT schema
spi: dw: Refactor mid_spi_dma_setup() to separate DMA and IRQ config
spi: dw: Make DMA request line assignments explicit for Intel Medfield
spi: bcm2835: Remove shared interrupt support
dt-bindings: snps,dw-apb-ssi: add optional reset property
spi: dw: add reset control
spi: bcm2835: Enable shared interrupt support
spi: bcm2835: Implement shutdown callback
spi: dw: Use regset32 DebugFS method to create regdump file
spi: dw: Add DMA support to the DW SPI MMIO driver
spi: dw: Cleanup generic DW DMA code namings
spi: dw: Add DW SPI DMA/PCI/MMIO dependency on the DW SPI core
spi: dw: Remove DW DMA code dependency from DW_DMAC_PCI
spi: dw: Move Non-DMA code to the DW PCIe-SPI driver
spi: dw: Add core suffix to the DW APB SSI core source file
spi: dw: Fix Rx-only DMA transfers
spi: dw: Use DMA max burst to set the request thresholds
spi: dw: Parameterize the DMA Rx/Tx burst length
spi: dw: Add SPI Rx-done wait method to DMA-based transfer
...
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Pablo Neira Ayuso says:
====================
the indirect flow_block infrastructure, revisited
This series fixes b5140a36da78 ("netfilter: flowtable: add indr block
setup support") that adds support for the indirect block for the
flowtable. This patch crashes the kernel with the TC CT action.
[ 630.908086] BUG: kernel NULL pointer dereference, address: 00000000000000f0
[ 630.908233] #PF: error_code(0x0000) - not-present page
[ 630.908304] PGD 800000104addd067 P4D 800000104addd067 PUD 104311d067 PMD 0
[ 630.908380] Oops: 0000 [#1] SMP PTI [ 630.908615] RIP: 0010:nf_flow_table_indr_block_cb+0xc0/0x190 [nf_flow_table]
[ 630.908690] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 4c 89 75 a0 4c 89 65 a8 4d 89 ee 49 89 dd 4c 89 fe 48 c7 c7 b7 64 36 a0 31 c0 e8 ce ed d8 e0 <49> 8b b7 f0 00 00 00 48 c7 c7 c8 64 36 a0 31 c0 e8 b9 ed d8 e0 49[ 630.908790] RSP: 0018:ffffc9000895f8c0 EFLAGS: 00010246
[...]
[ 630.910774] Call Trace:
[ 630.911192] ? mlx5e_rep_indr_setup_block+0x270/0x270 [mlx5_core]
[ 630.911621] ? mlx5e_rep_indr_setup_block+0x270/0x270 [mlx5_core]
[ 630.912040] ? mlx5e_rep_indr_setup_block+0x270/0x270 [mlx5_core]
[ 630.912443] flow_block_cmd+0x51/0x80
[ 630.912844] __flow_indr_block_cb_register+0x26c/0x510
[ 630.913265] mlx5e_nic_rep_netdevice_event+0x9e/0x110 [mlx5_core]
[ 630.913665] notifier_call_chain+0x53/0xa0
[ 630.914063] raw_notifier_call_chain+0x16/0x20
[ 630.914466] call_netdevice_notifiers_info+0x39/0x90
[ 630.914859] register_netdevice+0x484/0x550
[ 630.915256] __ip_tunnel_create+0x12b/0x1f0 [ip_tunnel]
[ 630.915661] ip_tunnel_init_net+0x116/0x180 [ip_tunnel]
[ 630.916062] ipgre_tap_init_net+0x22/0x30 [ip_gre]
[ 630.916458] ops_init+0x44/0x110
[ 630.916851] register_pernet_operations+0x112/0x200
A workaround patch to cure this crash has been proposed. However, there
is another problem: The indirect flow_block still does not work for the
new TC CT action. The problem is that the existing flow_indr_block_entry
callback assumes you can look up for the flowtable from the netdevice to
get the flow_block. This flow_block allows you to offload the flows via
TC_SETUP_CLSFLOWER. Unfortunately, it is not possible to get the
flow_block from the TC CT flowtables because they are _not_ bound to any
specific netdevice.
= What is the indirect flow_block infrastructure?
The indirect flow_block infrastructure allows drivers to offload
tc/netfilter rules that belong to software tunnel netdevices, e.g.
vxlan.
This indirect flow_block infrastructure relates tunnel netdevices with
drivers because there is no obvious way to relate these two things
from the control plane.
= How does the indirect flow_block work before this patchset?
Front-ends register the indirect block callback through
flow_indr_add_block_cb() if they support for offloading tunnel
netdevices.
== Setting up an indirect block
1) Drivers track tunnel netdevices via NETDEV_{REGISTER,UNREGISTER} events.
If there is a new tunnel netdevice that the driver can offload, then the
driver invokes __flow_indr_block_cb_register() with the new tunnel
netdevice and the driver callback. The __flow_indr_block_cb_register()
call iterates over the list of the front-end callbacks.
2) The front-end callback sets up the flow_block_offload structure and it
invokes the driver callback to set up the flow_block.
3) The driver callback now registers the flow_block structure and it
returns the flow_block back to the front-end.
4) The front-end gets the flow_block object and it is now ready to
offload rules for this tunnel netdevice.
A simplified callgraph is represented below.
Front-end Driver
NETDEV_REGISTER
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__flow_indr_block_cb_register(netdev, cb_priv, driver_cb)
| [1]
.--------------frontend_indr_block_cb(cb_priv, driver_cb)
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.
setup_flow_block_offload(bo)
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driver_cb(bo, cb_priv) -----------.
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\/
set up flow_blocks [3]
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add rules to flow_block <----------
TC_SETUP_CLSFLOWER [4]
== Releasing the indirect flow_block
There are two possibilities, either tunnel netdevice is removed or
a netdevice (port representor) is removed.
=== Tunnel netdevice is removed
Driver waits for the NETDEV_UNREGISTER event that announces the tunnel
netdevice removal. Then, it calls __flow_indr_block_cb_unregister() to
remove the flow_block and rules. Callgraph is very similar to the one
described above.
=== Netdevice is removed (port representor)
Driver calls __flow_indr_block_cb_unregister() to remove the existing
netfilter/tc rule that belong to the tunnel netdevice.
= How does the indirect flow_block work after this patchset?
Drivers register the indirect flow_block setup callback through
flow_indr_dev_register() if they support for offloading tunnel
netdevices.
== Setting up an indirect flow_block
1) Frontends check if dev->netdev_ops->ndo_setup_tc is unset. If so,
frontends call flow_indr_dev_setup_offload(). This call invokes
the drivers' indirect flow_block setup callback.
2) The indirect flow_block setup callback sets up a flow_block structure
which relates the tunnel netdevice and the driver.
3) The front-end uses flow_block and offload the rules.
Note that the operational to set up (non-indirect) flow_block is very
similar.
== Releasing the indirect flow_block
=== Tunnel netdevice is removed
This calls flow_indr_dev_setup_offload() to set down the flow_block and
remove the offloaded rules. This alternate path is exercised if
dev->netdev_ops->ndo_setup_tc is unset.
=== Netdevice is removed (port representor)
If a netdevice is removed, then it might need to to clean up the
offloaded tc/netfilter rules that belongs to the tunnel netdevice:
1) The driver invokes flow_indr_dev_unregister() when a netdevice is
removed.
2) This call iterates over the existing indirect flow_blocks
and it invokes the cleanup callback to let the front-end remove the
tc/netfilter rules. The cleanup callback already provides the
flow_block that the front-end needs to clean up.
Front-end Driver
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flow_indr_dev_unregister(...)
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iterate over list of indirect flow_block
and invoke cleanup callback
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.-----------------------------
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.
frontend_flow_block_cleanup(flow_block)
.
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\/
remove rules to flow_block
TC_SETUP_CLSFLOWER
= About this patchset
This patchset aims to address the existing TC CT problem while
simplifying the indirect flow_block infrastructure. Saving 300 LoC in
the flow_offload core and the drivers. The operational gets aligned with
the (non-indirect) flow_blocks logic. Patchset is composed of:
Patch #1 add nf_flow_table_gc_cleanup() which is required by the
netfilter's flowtable new indirect flow_block approach.
Patch #2 adds the flow_block_indr object which is actually part of
of the flow_block object. This stores the indirect flow_block
metadata such as the tunnel netdevice owner and the cleanup
callback (in case the tunnel netdevice goes away).
This patch adds flow_indr_dev_{un}register() to allow drivers
to offer netdevice tunnel hardware offload to the front-ends.
Then, front-ends call flow_indr_dev_setup_offload() to invoke
the drivers to set up the (indirect) flow_block.
Patch #3 add the tcf_block_offload_init() helper function, this is
a preparation patch to adapt the tc front-end to use this
new indirect flow_block infrastructure.
Patch #4 updates the tc and netfilter front-ends to use the new
indirect flow_block infrastructure.
Patch #5 updates the mlx5 driver to use the new indirect flow_block
infrastructure.
Patch #6 updates the nfp driver to use the new indirect flow_block
infrastructure.
Patch #7 updates the bnxt driver to use the new indirect flow_block
infrastructure.
Patch #8 removes the indirect flow_block infrastructure version 1,
now that frontends and drivers have been translated to
version 2 (coming in this patchset).
====================
Signed-off-by: David S. Miller <[email protected]>
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Drivers do not register to netdev events to set up indirect blocks
anymore. Remove __flow_indr_block_cb_register() and
__flow_indr_block_cb_unregister().
The frontends set up the callbacks through flow_indr_dev_setup_block()
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Register ndo callback via flow_indr_dev_register() and
flow_indr_dev_unregister().
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Register ndo callback via flow_indr_dev_register() and
flow_indr_dev_unregister().
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Register ndo callback via flow_indr_dev_register() and
flow_indr_dev_unregister().
No need for mlx5e_rep_indr_clean_block_privs() since flow_block_cb_free()
already releases the internal mapping via ->release callback, which in
this case is mlx5e_rep_indr_tc_block_unbind().
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Update existing frontends to use flow_indr_dev_setup_offload().
This new function must be called if ->ndo_setup_tc is unset to deal
with tunnel devices.
If there is no driver that is subscribed to new tunnel device
flow_block bindings, then this function bails out with EOPNOTSUPP.
If the driver module is removed, the ->cleanup() callback removes the
entries that belong to this tunnel device. This cleanup procedures is
triggered when the device unregisters the tunnel device offload handler.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add a helper function to initialize the flow_block_offload structure.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Tunnel devices provide no dev->netdev_ops->ndo_setup_tc(...) interface.
The tunnel device and route control plane does not provide an obvious
way to relate tunnel and physical devices.
This patch allows drivers to register a tunnel device offload handler
for the tc and netfilter frontends through flow_indr_dev_register() and
flow_indr_dev_unregister().
The frontend calls flow_indr_dev_setup_offload() that iterates over the
list of drivers that are offering tunnel device hardware offload
support and it sets up the flow block for this tunnel device.
If the driver module is removed, the indirect flow_block ends up with a
stale callback reference. The module removal path triggers the
dev_shutdown() path to remove the qdisc and the flow_blocks for the
physical devices. However, this is not useful for tunnel devices, where
relation between the physical and the tunnel device is not explicit.
This patch introduces a cleanup callback that is invoked when the driver
module is removed to clean up the tunnel device flow_block. This patch
defines struct flow_block_indr and it uses it from flow_block_cb to
store the information that front-end requires to perform the
flow_block_cb cleanup on module removal.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This function schedules the flow teardown state and it forces a gc run.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"This has been a very active release for the regmap API for some
reason, a lot of it due to new devices with odd requirements that can
sensibly be handled here.
- Add support for buses implementing a custom reg_update_bits()
method in case the bus has a native operation for this.
- Support 16 bit register addresses in SMBus.
- Allow customization of the device attached to regmap-irq.
- Helpers for bitfield operations and per-port field initializations"
* tag 'regmap-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: provide helpers for simple bit operations
regmap: add helper for per-port regfield initialization
regmap-i2c: add 16-bit width registers support
regmap: Simplify implementation of the regmap_field_read_poll_timeout() macro
regmap: Simplify implementation of the regmap_read_poll_timeout() macro
regmap: add reg_sequence helpers
regmap-irq: make it possible to add irq_chip do a specific device node
regmap: Add bus reg_update_bits() support
regmap: debugfs: check count when read regmap file
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trying to configure TC 'act_gate' rules with invalid control actions, the
following splat can be observed:
general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 PID: 2143 Comm: tc Not tainted 5.7.0-rc6+ #168
Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014
RIP: 0010:hrtimer_active+0x56/0x290
[...]
Call Trace:
hrtimer_try_to_cancel+0x6d/0x330
hrtimer_cancel+0x11/0x20
tcf_gate_cleanup+0x15/0x30 [act_gate]
tcf_action_cleanup+0x58/0x170
__tcf_action_put+0xb0/0xe0
__tcf_idr_release+0x68/0x90
tcf_gate_init+0x7c7/0x19a0 [act_gate]
tcf_action_init_1+0x60f/0x960
tcf_action_init+0x157/0x2a0
tcf_action_add+0xd9/0x2f0
tc_ctl_action+0x2a3/0x39d
rtnetlink_rcv_msg+0x5f3/0x920
netlink_rcv_skb+0x121/0x350
netlink_unicast+0x439/0x630
netlink_sendmsg+0x714/0xbf0
sock_sendmsg+0xe2/0x110
____sys_sendmsg+0x5b4/0x890
___sys_sendmsg+0xe9/0x160
__sys_sendmsg+0xd3/0x170
do_syscall_64+0x9a/0x370
entry_SYSCALL_64_after_hwframe+0x44/0xa9
this is caused by hrtimer_cancel(), running before hrtimer_init(). Fix it
ensuring to call hrtimer_cancel() only if clockid is valid, and the timer
has been initialized. After fixing this splat, the same error path causes
another problem:
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 980 Comm: tc Not tainted 5.7.0-rc6+ #168
Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014
RIP: 0010:release_entry_list+0x4a/0x240 [act_gate]
[...]
Call Trace:
tcf_action_cleanup+0x58/0x170
__tcf_action_put+0xb0/0xe0
__tcf_idr_release+0x68/0x90
tcf_gate_init+0x7ab/0x19a0 [act_gate]
tcf_action_init_1+0x60f/0x960
tcf_action_init+0x157/0x2a0
tcf_action_add+0xd9/0x2f0
tc_ctl_action+0x2a3/0x39d
rtnetlink_rcv_msg+0x5f3/0x920
netlink_rcv_skb+0x121/0x350
netlink_unicast+0x439/0x630
netlink_sendmsg+0x714/0xbf0
sock_sendmsg+0xe2/0x110
____sys_sendmsg+0x5b4/0x890
___sys_sendmsg+0xe9/0x160
__sys_sendmsg+0xd3/0x170
do_syscall_64+0x9a/0x370
entry_SYSCALL_64_after_hwframe+0x44/0xa9
the problem is similar: tcf_action_cleanup() was trying to release a list
without initializing it first. Ensure that INIT_LIST_HEAD() is called for
every newly created 'act_gate' action, same as what was done to 'act_ife'
with commit 44c23d71599f ("net/sched: act_ife: initalize ife->metalist
earlier").
Fixes: a51c328df310 ("net: qos: introduce a gate control flow action")
CC: Ivan Vecera <[email protected]>
Signed-off-by: Davide Caratti <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Pioneer DJ DJM-900NXS2 is a widely used DJ mixer with 2 audio USB
interfaces. Both have a MIDI controller, 10 playback and 12 capture
channels. Audio endpoints are vendor-specific and 3 files need to be
patched. All playback and capture channels work fine with all supported
sample rates (44.1k, 48k, 96k). Patches are attached.
Signed-off-by: Dmitry Panchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
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Bartosz Golaszewski says:
====================
regmap: provide simple bitops and use them in a driver
I noticed that oftentimes I use regmap_update_bits() for simple bit
setting or clearing. In this case the fourth argument is superfluous as
it's always 0 or equal to the mask argument.
This series proposes to add simple bit operations for setting, clearing
and testing specific bits with regmap.
The second patch uses all three in a driver that got recently picked into
the net-next tree.
The patches obviously target different trees so - if you're ok with
the change itself - I propose you pick the first one into your regmap
tree for v5.8 and then I'll resend the second patch to add the first
user for these macros for v5.9.
v1 -> v2:
- convert the new macros to static inline functions
v2 -> v3:
- drop unneeded ternary operator
====================
Signed-off-by: David S. Miller <[email protected]>
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Shrink the code visually by replacing regmap_update_bits() with
appropriate regmap bit operations where applicable.
Signed-off-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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In many instances regmap_update_bits() is used for simple bit setting
and clearing. In these cases the last argument is redundant and we can
hide it with a static inline function.
This adds three new helpers for simple bit operations: set_bits,
clear_bits and test_bits (the last one defined as a regular function).
Signed-off-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"Infrastructure:
- Add notification support
New drivers:
- Baikal-T1 PVT sensor driver
- amd_energy driver to report energy counters
- Driver for Maxim MAX16601
- Gateworks System Controller
Various:
- applesmc: avoid overlong udelay()
- dell-smm: Use one DMI match for all XPS models
- ina2xx: Implement alert functions
- lm70: Add support for ACPI
- lm75: Fix coding-style warnings
- lm90: Add max6654 support to lm90 driver
- nct7802: Replace container_of() API
- nct7904: Set default timeout
- nct7904: Add watchdog function
- pmbus: Improve initialization of 'currpage' and 'currphase'"
* tag 'hwmon-for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (24 commits)
hwmon: Add Baikal-T1 PVT sensor driver
hwmon: Add notification support
dt-bindings: hwmon: Add Baikal-T1 PVT sensor binding
hwmon: (applesmc) avoid overlong udelay()
hwmon: (nct7904) Set default timeout
hwmon: (amd_energy) Missing platform_driver_unregister() on error in amd_energy_init()
MAINTAINERS: add entry for AMD energy driver
hwmon: (amd_energy) Add documentation
hwmon: Add amd_energy driver to report energy counters
hwmon: (nct7802) Replace container_of() API
hwmon: (lm90) Add max6654 support to lm90 driver
hwmon : (nct6775) Use kobj_to_dev() API
hwmon: (pmbus) Driver for Maxim MAX16601
hwmon: (pmbus) Improve initialization of 'currpage' and 'currphase'
hwmon: (adt7411) update contact email
hwmon: (lm75) Fix all coding-style warnings on lm75 driver
hwmon: Reduce indentation level in __hwmon_device_register()
hwmon: (ina2xx) Implement alert functions
hwmon: (lm70) Add support for ACPI
hwmon: (dell-smm) Use one DMI match for all XPS models
...
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The caller doesn't care about the error codes, they only check for zero
vs non-zero. Still, it's better to preserve the negative error codes
from alloc_uld_rxqs() instead of changing it to 1. We can also return
directly if there is a failure.
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Pull tpm updates from Jarkko Sakkinen.
* tag 'tpmdd-next-20200522' of git://git.infradead.org/users/jjs/linux-tpmdd:
tpm: eventlog: Replace zero-length array with flexible-array member
tpm/tpm_ftpm_tee: Use UUID API for exporting the UUID
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.8
This has been another very active release with a bunch of new drivers,
lots of fixes everywhere and continued core improvements from
Morimoto-san:
- Lots of core cleanups and refactorings from Morimoto-san, factoring
out common operations and making the card abstraction more solid.
- Continued work on cleaning up and improving the Intel drivers, along
with some new platform support for them.
- Fixes to make the Marvell SSPA driver work upstream.
- Support for AMD Renoir ACP, Dialog DA7212, Freescale EASRC and
i.MX8M, Intel Elkhard Lake, Maxim MAX98390, Nuvoton NAU8812 and
NAU8814 and Realtek RT1016.
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Ido Schimmel says:
====================
Fix infinite loop in bridge and vxlan modules
When suppressing invalid IPv6 Neighbour Solicitation messages, it is
possible for the bridge and vxlan modules to get stuck in an infinite
loop. See the individual changelogs for detailed explanation of the
problem and solution.
The bug was originally reported against the bridge module, but after
auditing the code base I found that the buggy code was copied from the
vxlan module. This patch set fixes both modules. Could not find more
instances of the problem.
Please consider both patches for stable releases.
====================
Signed-off-by: David S. Miller <[email protected]>
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When proxy mode is enabled the vxlan device might reply to Neighbor
Solicitation (NS) messages on behalf of remote hosts.
In case the NS message includes the "Source link-layer address" option
[1], the vxlan device will use the specified address as the link-layer
destination address in its reply.
To avoid an infinite loop, break out of the options parsing loop when
encountering an option with length zero and disregard the NS message.
This is consistent with the IPv6 ndisc code and RFC 4886 which states
that "Nodes MUST silently discard an ND packet that contains an option
with length zero" [2].
[1] https://tools.ietf.org/html/rfc4861#section-4.3
[2] https://tools.ietf.org/html/rfc4861#section-4.6
Fixes: 4b29dba9c085 ("vxlan: fix nonfunctional neigh_reduce()")
Signed-off-by: Ido Schimmel <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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When neighbor suppression is enabled the bridge device might reply to
Neighbor Solicitation (NS) messages on behalf of remote hosts.
In case the NS message includes the "Source link-layer address" option
[1], the bridge device will use the specified address as the link-layer
destination address in its reply.
To avoid an infinite loop, break out of the options parsing loop when
encountering an option with length zero and disregard the NS message.
This is consistent with the IPv6 ndisc code and RFC 4886 which states
that "Nodes MUST silently discard an ND packet that contains an option
with length zero" [2].
[1] https://tools.ietf.org/html/rfc4861#section-4.3
[2] https://tools.ietf.org/html/rfc4861#section-4.6
Fixes: ed842faeb2bd ("bridge: suppress nd pkts on BR_NEIGH_SUPPRESS ports")
Signed-off-by: Ido Schimmel <[email protected]>
Reported-by: Alla Segal <[email protected]>
Tested-by: Alla Segal <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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After allocating the spare nexthop group it should be tested for kzalloc()
returning NULL, instead the already used nexthop group (which cannot be
NULL at this point) had been tested so far.
Additionally, if kzalloc() fails, return ERR_PTR(-ENOMEM) instead of NULL.
Coverity-id: 1463885
Reported-by: Coverity <[email protected]>
Signed-off-by: Patrick Eigensatz <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
pull request: bluetooth-next 2020-06-01
Here's one last bluetooth-next pull request for 5.8, which I hope can
still be accepted.
- Enabled Wide-Band Speech (WBS) support for Qualcomm wcn3991
- Multiple fixes/imprvovements to Qualcomm-based devices
- Fix GAP/SEC/SEM/BI-10-C qualfication test case
- Added support for Broadcom BCM4350C5 device
- Several other smaller fixes & improvements
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <[email protected]>
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We really don't care about triggering buffer errors for this condition.
This avoids a spew of:
Buffer I/O error on dev sdc, logical block 785929, async page read
Buffer I/O error on dev sdc, logical block 759095, async page read
Buffer I/O error on dev sdc, logical block 766922, async page read
Buffer I/O error on dev sdc, logical block 17659, async page read
Buffer I/O error on dev sdc, logical block 637571, async page read
Buffer I/O error on dev sdc, logical block 39241, async page read
Buffer I/O error on dev sdc, logical block 397241, async page read
Buffer I/O error on dev sdc, logical block 763992, async page read
from -EAGAIN conditions on request allocation for async reads.
Signed-off-by: Jens Axboe <[email protected]>
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vmx_tsc_adjust_test fails with:
IA32_TSC_ADJUST is -4294969448 (-1 * TSC_ADJUST_VALUE + -2152).
IA32_TSC_ADJUST is -4294969448 (-1 * TSC_ADJUST_VALUE + -2152).
IA32_TSC_ADJUST is 281470681738540 (65534 * TSC_ADJUST_VALUE + 4294962476).
==== Test Assertion Failure ====
x86_64/vmx_tsc_adjust_test.c:153: false
pid=19738 tid=19738 - Interrupted system call
1 0x0000000000401192: main at vmx_tsc_adjust_test.c:153
2 0x00007fe1ef8583d4: ?? ??:0
3 0x0000000000401201: _start at ??:?
Failed guest assert: (adjust <= max)
The problem is that is 'tsc_val' should be u64, not u32 or the reading
gets truncated.
Fixes: 8d7fbf01f9afc ("KVM: selftests: VMX preemption timer migration test")
Signed-off-by: Vitaly Kuznetsov <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
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Do some wordsmithing and copy editing on the maintainer-entry-profile
profile (template, guide):
- fix punctuation
- fix some wording
- use "-rc" consistently
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: [email protected]
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>
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Recently, I switched over from swap-file to zramswap.
When reading the Documentation/vm/zswap.rst file I fell over this typo.
The parameter is called accept_threshold_percent not accept_threhsold_percent
in /sys/module/zswap/parameters/ directory.
Fixes: 45190f01dd402 ("mm/zswap.c: add allocation hysteresis if pool limit is hit")
Cc: Vitaly Wool <[email protected]>
Signed-off-by: Sedat Dilek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>
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This is currently working due to extra include paths in the build.
Before:
$ cd tools/perf/arch/arm64/util
$ ls -la ../../util/unwind-libdw.h
ls: cannot access '../../util/unwind-libdw.h': No such file or directory
After:
$ ls -la ../../../util/unwind-libdw.h
-rw-r----- 1 irogers irogers 553 Apr 17 14:31 ../../../util/unwind-libdw.h
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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After the commit ffd3d18c20b8 ("perf tools: Add ARM Statistical
Profiling Extensions (SPE) support") has been merged, it supports to
output raw data with option "--dump-raw-trace". However, it misses for
support synthetic events so cannot output any statistical info.
This patch is to improve the "perf report" support for ARM SPE for four
types synthetic events:
First level cache synthetic events, including L1 data cache accessing
and missing events;
Last level cache synthetic events, including last level cache
accessing and missing events;
TLB synthetic events, including TLB accessing and missing events;
Remote access events, which is used to account load/store operations
caused to another socket.
Example usage:
$ perf record -c 1024 -e arm_spe_0/branch_filter=1,ts_enable=1,pct_enable=1,pa_enable=1,load_filter=1,jitter=1,store_filter=1,min_latency=0/ dd if=/dev/zero of=/dev/null count=10000
$ perf report --stdio
# Samples: 59 of event 'l1d-miss'
# Event count (approx.): 59
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. ..................................
#
23.73% 23.73% dd [kernel.kallsyms] [k] perf_iterate_ctx.constprop.135
20.34% 20.34% dd [kernel.kallsyms] [k] filemap_map_pages
5.08% 5.08% dd [kernel.kallsyms] [k] perf_event_mmap
5.08% 5.08% dd [kernel.kallsyms] [k] unlock_page_memcg
5.08% 5.08% dd [kernel.kallsyms] [k] unmap_page_range
3.39% 3.39% dd [kernel.kallsyms] [k] PageHuge
3.39% 3.39% dd [kernel.kallsyms] [k] release_pages
3.39% 3.39% dd ld-2.28.so [.] 0x0000000000008b5c
1.69% 1.69% dd [kernel.kallsyms] [k] __alloc_fd
[...]
# Samples: 3K of event 'l1d-access'
# Event count (approx.): 3980
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. ......................................
#
26.98% 26.98% dd [kernel.kallsyms] [k] ret_to_user
10.53% 10.53% dd [kernel.kallsyms] [k] fsnotify
7.51% 7.51% dd [kernel.kallsyms] [k] new_sync_read
4.57% 4.57% dd [kernel.kallsyms] [k] vfs_read
4.35% 4.35% dd [kernel.kallsyms] [k] vfs_write
3.69% 3.69% dd [kernel.kallsyms] [k] __fget_light
3.69% 3.69% dd [kernel.kallsyms] [k] rw_verify_area
3.44% 3.44% dd [kernel.kallsyms] [k] security_file_permission
2.76% 2.76% dd [kernel.kallsyms] [k] __fsnotify_parent
2.44% 2.44% dd [kernel.kallsyms] [k] ksys_write
2.24% 2.24% dd [kernel.kallsyms] [k] iov_iter_zero
2.19% 2.19% dd [kernel.kallsyms] [k] read_iter_zero
1.81% 1.81% dd dd [.] 0x0000000000002960
1.78% 1.78% dd dd [.] 0x0000000000002980
[...]
# Samples: 35 of event 'llc-miss'
# Event count (approx.): 35
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. ...........................
#
34.29% 34.29% dd [kernel.kallsyms] [k] filemap_map_pages
8.57% 8.57% dd [kernel.kallsyms] [k] unlock_page_memcg
8.57% 8.57% dd [kernel.kallsyms] [k] unmap_page_range
5.71% 5.71% dd [kernel.kallsyms] [k] PageHuge
5.71% 5.71% dd [kernel.kallsyms] [k] release_pages
5.71% 5.71% dd ld-2.28.so [.] 0x0000000000008b5c
2.86% 2.86% dd [kernel.kallsyms] [k] __queue_work
2.86% 2.86% dd [kernel.kallsyms] [k] __radix_tree_lookup
2.86% 2.86% dd [kernel.kallsyms] [k] copy_page
[...]
# Samples: 2 of event 'llc-access'
# Event count (approx.): 2
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. .............
#
50.00% 50.00% dd [kernel.kallsyms] [k] copy_page
50.00% 50.00% dd libc-2.28.so [.] _dl_addr
# Samples: 48 of event 'tlb-miss'
# Event count (approx.): 48
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. ..................................
#
20.83% 20.83% dd [kernel.kallsyms] [k] perf_iterate_ctx.constprop.135
12.50% 12.50% dd [kernel.kallsyms] [k] __arch_clear_user
10.42% 10.42% dd [kernel.kallsyms] [k] clear_page
4.17% 4.17% dd [kernel.kallsyms] [k] copy_page
4.17% 4.17% dd [kernel.kallsyms] [k] filemap_map_pages
2.08% 2.08% dd [kernel.kallsyms] [k] __alloc_fd
2.08% 2.08% dd [kernel.kallsyms] [k] __mod_memcg_state.part.70
2.08% 2.08% dd [kernel.kallsyms] [k] __queue_work
2.08% 2.08% dd [kernel.kallsyms] [k] __rcu_read_unlock
2.08% 2.08% dd [kernel.kallsyms] [k] d_path
2.08% 2.08% dd [kernel.kallsyms] [k] destroy_inode
2.08% 2.08% dd [kernel.kallsyms] [k] do_dentry_open
[...]
# Samples: 9K of event 'tlb-access'
# Event count (approx.): 9573
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. ......................................
#
25.79% 25.79% dd [kernel.kallsyms] [k] __arch_clear_user
11.22% 11.22% dd [kernel.kallsyms] [k] ret_to_user
8.56% 8.56% dd [kernel.kallsyms] [k] fsnotify
4.06% 4.06% dd [kernel.kallsyms] [k] new_sync_read
3.67% 3.67% dd [kernel.kallsyms] [k] el0_svc_common.constprop.2
3.04% 3.04% dd [kernel.kallsyms] [k] __fsnotify_parent
2.90% 2.90% dd [kernel.kallsyms] [k] vfs_write
2.82% 2.82% dd [kernel.kallsyms] [k] vfs_read
2.52% 2.52% dd libc-2.28.so [.] write
2.26% 2.26% dd [kernel.kallsyms] [k] security_file_permission
2.08% 2.08% dd [kernel.kallsyms] [k] ksys_write
1.96% 1.96% dd [kernel.kallsyms] [k] rw_verify_area
1.95% 1.95% dd [kernel.kallsyms] [k] read_iter_zero
[...]
# Samples: 9 of event 'branch-miss'
# Event count (approx.): 9
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. .........................
#
22.22% 22.22% dd libc-2.28.so [.] _dl_addr
11.11% 11.11% dd [kernel.kallsyms] [k] __arch_clear_user
11.11% 11.11% dd [kernel.kallsyms] [k] __arch_copy_from_user
11.11% 11.11% dd [kernel.kallsyms] [k] __dentry_kill
11.11% 11.11% dd [kernel.kallsyms] [k] __efistub_memcpy
11.11% 11.11% dd ld-2.28.so [.] 0x0000000000012b7c
11.11% 11.11% dd libc-2.28.so [.] 0x000000000002a980
11.11% 11.11% dd libc-2.28.so [.] 0x0000000000083340
# Samples: 29 of event 'remote-access'
# Event count (approx.): 29
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................. ...........................
#
41.38% 41.38% dd [kernel.kallsyms] [k] filemap_map_pages
10.34% 10.34% dd [kernel.kallsyms] [k] unlock_page_memcg
10.34% 10.34% dd [kernel.kallsyms] [k] unmap_page_range
6.90% 6.90% dd [kernel.kallsyms] [k] release_pages
3.45% 3.45% dd [kernel.kallsyms] [k] PageHuge
3.45% 3.45% dd [kernel.kallsyms] [k] __queue_work
3.45% 3.45% dd [kernel.kallsyms] [k] page_add_file_rmap
3.45% 3.45% dd [kernel.kallsyms] [k] page_counter_try_charge
3.45% 3.45% dd [kernel.kallsyms] [k] page_remove_rmap
3.45% 3.45% dd [kernel.kallsyms] [k] xas_start
3.45% 3.45% dd ld-2.28.so [.] 0x0000000000002a1c
3.45% 3.45% dd ld-2.28.so [.] 0x0000000000008b5c
3.45% 3.45% dd ld-2.28.so [.] 0x00000000000093cc
Signed-off-by: Tan Xiaojun <[email protected]>
Tested-by: James Clark <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Al Grant <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: James Clark <[email protected]>
Signed-off-by: Leo Yan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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This patch is to add four options to synthesize events which are
described as below:
'f': synthesize first level cache events
'm': synthesize last level cache events
't': synthesize TLB events
'a': synthesize remote access events
This four options will be used by ARM SPE as their first consumer.
Signed-off-by: Tan Xiaojun <[email protected]>
Tested-by: James Clark <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Cc: Al Grant <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: James Clark <[email protected]>
Signed-off-by: Leo Yan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Create a new arm-spe-decoder directory for subsequent extensions and
move arm-spe-pkt-decoder.h/c to this directory. No code changes.
Signed-off-by: Tan Xiaojun <[email protected]>
Tested-by: James Clark <[email protected]>
Tested-by: Qi Liu <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Al Grant <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: James Clark <[email protected]>
Signed-off-by: Leo Yan <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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Avoid a false positive caused by assembly code in arch/x86.
In tests, zero the perf_event to avoid uninitialized memory uses.
Warnings were caught using clang with -fsanitize=memory.
Signed-off-by: Ian Rogers <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Jakub Kicinski <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Quentin Monnet <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The tail call optimization can unexpectedly make the stack smaller and
cause the test to fail.
Signed-off-by: Ian Rogers <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: [email protected]
Cc: Jakub Kicinski <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Quentin Monnet <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Tail call optimizations can remove stack frames that are used in
unwinding tests. Add an attribute that can be used to disable the tail
call optimization. Tested on clang and GCC.
Committer notes:
Old versions of clang don't like that __attribute__((optimize)), so add
an ifdef to make it go away.
Signed-off-by: Ian Rogers <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: [email protected]
Cc: Jakub Kicinski <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Quentin Monnet <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
* acpi-apei:
arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work
ACPI: APEI: Kick the memory_failure() queue for synchronous errors
mm/memory-failure: Add memory_failure_queue_kick()
* acpi-pmic:
ACPI / PMIC: Add i2c address for thermal control
* acpi-video:
ACPI: video: Use native backlight on Acer TravelMate 5735Z
* acpi-dptf:
ACPI: DPTF: Add battery participant driver
ACPI: DPTF: Additional sysfs attributes for power participant driver
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'acpi-pci'
* acpi-processor:
ACPI: processor: idle: Allow probing on platforms with one ACPI C-state
* acpi-cppc:
ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe()
ACPI: CPPC: Make some symbols static
* acpi-dbg:
ACPI: debug: Make two functions static
* acpi-misc:
ACPI: GED: use correct trigger type field in _Exx / _Lxx handling
ACPI: GED: add support for _Exx / _Lxx handler methods
ACPI: Delete unused proc filename macros
* acpi-pci:
ACPI: hotplug: PCI: Use the new acpi_evaluate_reg() helper
ACPI: utils: Add acpi_evaluate_reg() helper
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* acpica:
ACPICA: Update version to 20200430
ACPICA: Fix required parameters for _NIG and _NIH
ACPICA: Dispatcher: add status checks
ACPICA: Disassembler: ignore AE_ALREADY_EXISTS status when parsing create operators
ACPICA: Move acpi_gbl_next_cmd_num definition to acglobal.h
ACPICA: Make acpi_protocol_lengths static
* acpi-tables:
ACPI: sleep: Put the FACS table after using it
ACPI: scan: Put SPCR and STAO table after using it
ACPI: EC: Put the ACPI table after using it
ACPI: APEI: Put the HEST table for error path
ACPI: APEI: Put the error record serialization table for error path
ACPI: APEI: Put the error injection table for error path and module exit
ACPI: APEI: Put the boot error record table after parsing
ACPI: watchdog: Put the watchdog action table after parsing
ACPI: LPIT: Put the low power idle table after using it
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* pm-devfreq:
PM / devfreq: Use lockdep asserts instead of manual checks for locked mutex
PM / devfreq: imx-bus: Fix inconsistent IS_ERR and PTR_ERR
PM / devfreq: Replace strncpy with strscpy
PM / devfreq: imx: Register interconnect device
PM / devfreq: Add generic imx bus scaling driver
PM / devfreq: tegra30: Delete an error message in tegra_devfreq_probe()
PM / devfreq: tegra30: Make CPUFreq notifier to take into account boosting
* powercap:
powercap: RAPL: remove unused local MSR define
powercap/intel_rapl: add support for ElkhartLake
* pm-docs:
Documentation: admin-guide: pm: Document intel-speed-select
* pm-tools:
cpupower: Remove unneeded semicolon
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