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In case devcom allocation is failed, mlx5 is always freeing the priv.
However, this priv might have been allocated by a different thread,
and freeing it might lead to use-after-free bugs.
Fix it by freeing the priv only in case it was allocated by the
running thread.
Fixes: fadd59fc50 ("net/mlx5: Introduce inter-device communication mechanism")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
devcom events are sent to all registered component. Following the
cited patch, it is possible for two components, e.g.: two eswitches,
to send devcom events, while both components are registered. This
means eswitch layer will do double un/pairing, which is double
allocation and free of resources, even though only one un/pairing is
needed. flow example:
cpu0 cpu1
---- ----
mlx5_devlink_eswitch_mode_set(dev0)
esw_offloads_devcom_init()
mlx5_devcom_register_component(esw0)
mlx5_devlink_eswitch_mode_set(dev1)
esw_offloads_devcom_init()
mlx5_devcom_register_component(esw1)
mlx5_devcom_send_event()
mlx5_devcom_send_event()
Hence, check whether the eswitches are already un/paired before
free/allocation of resources.
Fixes: 09b278462f ("net: devlink: enable parallel ops on netlink interface")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Check in the mlx5e_ptp_poll_ts_cq context if the ptp tx sq should be woken
up. Before change, the ptp tx sq may never wake up if the ptp tx ts skb
fifo is full when mlx5e_poll_tx_cq checks if the queue should be woken up.
Fixes: 1880bc4e4a ("net/mlx5e: Add TX port timestamp support")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Fix spacing for the error and also the correct error code pointer.
Fixes: c9b9dcb430 ("net/mlx5: Move device memory management to mlx5_core")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
With introduction of post action infrastructure most of the users of encap
attribute had been modified in order to obtain the correct attribute by
calling mlx5e_tc_get_encap_attr() helper instead of assuming encap action
is always on default attribute. However, the cited commit didn't modify
mlx5e_invalidate_encap() which prevents it from destroying correct modify
header action which leads to a warning [0]. Fix the issue by using correct
attribute.
[0]:
Feb 21 09:47:35 c-237-177-40-045 kernel: WARNING: CPU: 17 PID: 654 at drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:684 mlx5e_tc_attach_mod_hdr+0x1cc/0x230 [mlx5_core]
Feb 21 09:47:35 c-237-177-40-045 kernel: RIP: 0010:mlx5e_tc_attach_mod_hdr+0x1cc/0x230 [mlx5_core]
Feb 21 09:47:35 c-237-177-40-045 kernel: Call Trace:
Feb 21 09:47:35 c-237-177-40-045 kernel: <TASK>
Feb 21 09:47:35 c-237-177-40-045 kernel: mlx5e_tc_fib_event_work+0x8e3/0x1f60 [mlx5_core]
Feb 21 09:47:35 c-237-177-40-045 kernel: ? mlx5e_take_all_encap_flows+0xe0/0xe0 [mlx5_core]
Feb 21 09:47:35 c-237-177-40-045 kernel: ? lock_downgrade+0x6d0/0x6d0
Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x273/0x3f0
Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x273/0x3f0
Feb 21 09:47:35 c-237-177-40-045 kernel: process_one_work+0x7c2/0x1310
Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x3f0/0x3f0
Feb 21 09:47:35 c-237-177-40-045 kernel: ? pwq_dec_nr_in_flight+0x230/0x230
Feb 21 09:47:35 c-237-177-40-045 kernel: ? rwlock_bug.part.0+0x90/0x90
Feb 21 09:47:35 c-237-177-40-045 kernel: worker_thread+0x59d/0xec0
Feb 21 09:47:35 c-237-177-40-045 kernel: ? __kthread_parkme+0xd9/0x1d0
Fixes: 8300f22526 ("net/mlx5e: Create new flow attr for multi table actions")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
SW Steering uses RC QP for writing STEs to ICM. This writingis done in LB
(loopback), and FL (force-loopback) QP is preferred for performance. FL is
available when RoCE is enabled or disabled based on RoCE caps.
This patch adds reading of FL capability from HCA caps in addition to the
existing reading from RoCE caps, thus fixing the case where we didn't
have loopback enabled when RoCE was disabled.
Fixes: 7304d603a5 ("net/mlx5: DR, Add support for force-loopback QP")
Signed-off-by: Itamar Gozlan <igozlan@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
When calculating crc for hash index we use the function crc32 that
calculates for little-endian (LE) arch.
Then we convert it to network endianness using htonl(), but it's wrong
to do the conversion in BE archs since the crc32 value is already LE.
The solution is to switch the bytes from the crc result for all types
of arc.
Fixes: 40416d8ede ("net/mlx5: DR, Replace CRC32 implementation to use kernel lib")
Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
In case user switch a device from switchdev mode to legacy mode, mlx5
first unpair the E-switch and afterwards unload the uplink vport.
From the other hand, in case user remove or reload a device, mlx5
first unload the uplink vport and afterwards unpair the E-switch.
The latter is causing a bug[1], hence, handle pairing of E-switch as
part of uplink un/load APIs.
[1]
In case VF_LAG is used, every tc fdb flow is duplicated to the peer
esw. However, the original esw keeps a pointer to this duplicated
flow, not the peer esw.
e.g.: if user create tc fdb flow over esw0, the flow is duplicated
over esw1, in FW/HW, but in SW, esw0 keeps a pointer to the duplicated
flow.
During module unload while a peer tc fdb flow is still offloaded, in
case the first device to be removed is the peer device (esw1 in the
example above), the peer net-dev is destroyed, and so the mlx5e_priv
is memset to 0.
Afterwards, the peer device is trying to unpair himself from the
original device (esw0 in the example above). Unpair API invoke the
original device to clear peer flow from its eswitch (esw0), but the
peer flow, which is stored over the original eswitch (esw0), is
trying to use the peer mlx5e_priv, which is memset to 0 and result in
bellow kernel-oops.
[ 157.964081 ] BUG: unable to handle page fault for address: 000000000002ce60
[ 157.964662 ] #PF: supervisor read access in kernel mode
[ 157.965123 ] #PF: error_code(0x0000) - not-present page
[ 157.965582 ] PGD 0 P4D 0
[ 157.965866 ] Oops: 0000 [#1] SMP
[ 157.967670 ] RIP: 0010:mlx5e_tc_del_fdb_flow+0x48/0x460 [mlx5_core]
[ 157.976164 ] Call Trace:
[ 157.976437 ] <TASK>
[ 157.976690 ] __mlx5e_tc_del_fdb_peer_flow+0xe6/0x100 [mlx5_core]
[ 157.977230 ] mlx5e_tc_clean_fdb_peer_flows+0x67/0x90 [mlx5_core]
[ 157.977767 ] mlx5_esw_offloads_unpair+0x2d/0x1e0 [mlx5_core]
[ 157.984653 ] mlx5_esw_offloads_devcom_event+0xbf/0x130 [mlx5_core]
[ 157.985212 ] mlx5_devcom_send_event+0xa3/0xb0 [mlx5_core]
[ 157.985714 ] esw_offloads_disable+0x5a/0x110 [mlx5_core]
[ 157.986209 ] mlx5_eswitch_disable_locked+0x152/0x170 [mlx5_core]
[ 157.986757 ] mlx5_eswitch_disable+0x51/0x80 [mlx5_core]
[ 157.987248 ] mlx5_unload+0x2a/0xb0 [mlx5_core]
[ 157.987678 ] mlx5_uninit_one+0x5f/0xd0 [mlx5_core]
[ 157.988127 ] remove_one+0x64/0xe0 [mlx5_core]
[ 157.988549 ] pci_device_remove+0x31/0xa0
[ 157.988933 ] device_release_driver_internal+0x18f/0x1f0
[ 157.989402 ] driver_detach+0x3f/0x80
[ 157.989754 ] bus_remove_driver+0x70/0xf0
[ 157.990129 ] pci_unregister_driver+0x34/0x90
[ 157.990537 ] mlx5_cleanup+0xc/0x1c [mlx5_core]
[ 157.990972 ] __x64_sys_delete_module+0x15a/0x250
[ 157.991398 ] ? exit_to_user_mode_prepare+0xea/0x110
[ 157.991840 ] do_syscall_64+0x3d/0x90
[ 157.992198 ] entry_SYSCALL_64_after_hwframe+0x46/0xb0
Fixes: 04de7dda73 ("net/mlx5e: Infrastructure for duplicated offloading of TC flows")
Fixes: 1418ddd96a ("net/mlx5e: Duplicate offloaded TC eswitch rules under uplink LAG")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
DEVX can issue a general command, which is not used by mlx5 driver.
In case such command is failed, mlx5 is trying to collect the failure
data, However, mlx5 doesn't create a storage for this command, since
mlx5 doesn't use it. This lead to array-index-out-of-bounds error.
Fix it by checking whether the command is known before collecting the
failure data.
Fixes: 34f46ae0d4 ("net/mlx5: Add command failures data to debugfs")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
The "handshake_req_alloc excessive privsize" kunit test is intended
to check what happens when the maximum privsize is exceeded. The
WARN_ON_ONCE_GFP at mm/page_alloc.c:4744 can be disabled safely for
this test.
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Fixes: 88232ec1ec ("net/handshake: Add Kunit tests for the handshake consumer API")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/168451636052.47152.9600443326570457947.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If an error occures after calling nv_mgmt_acquire_sema(), it should be
undone with a corresponding nv_mgmt_release_sema() call.
Add it in the error handling path of the probe as already done in the
remove function.
Fixes: cac1c52c36 ("forcedeth: mgmt unit interface")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Link: https://lore.kernel.org/r/355e9a7d351b32ad897251b6f81b5886fcdc6766.1684571393.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mlx5 misc changes and code clean up:
The following series contains general changes for improving
E-Switch driver behavior.
1) improving condition checking
2) Code clean up
3) Using metadata matching on send-to-vport rules.
4) Using RoCE v2 instead of v1 for loopback rules.
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Merge tag 'mlx5-updates-2023-05-19' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2023-05-19
mlx5 misc changes and code clean up:
The following series contains general changes for improving
E-Switch driver behavior.
1) improving condition checking
2) Code clean up
3) Using metadata matching on send-to-vport rules.
4) Using RoCE v2 instead of v1 for loopback rules.
* tag 'mlx5-updates-2023-05-19' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5e: E-Switch, Initialize E-Switch for eswitch manager
net/mlx5: devlink, Only show PF related devlink warning when needed
net/mlx5: E-Switch, Use metadata matching for RoCE loopback rule
net/mlx5: E-Switch, Use RoCE version 2 for loopback traffic
net/mlx5e: E-Switch, Add a check that log_max_l2_table is valid
net/mlx5e: E-Switch: move debug print of adding mac to correct place
net/mlx5e: E-Switch, Check device is PF when stopping esw offloads
net/mlx5: Remove redundant vport_group_manager cap check
net/mlx5e: E-Switch, Use metadata for vport matching in send-to-vport rules
net/mlx5e: E-Switch, Allow get vport api if esw exists
net/mlx5e: E-Switch, Update when to set other vport context
net/mlx5e: Remove redundant __func__ arg from fs_err() calls
net/mlx5e: E-Switch, Remove flow_source check for metadata matching
net/mlx5: E-Switch, Remove redundant check
net/mlx5: Remove redundant esw multiport validate function
====================
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230519175557.15683-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We have been requiring the supported_interfaces bitmap to be filled in
by MAC drivers that have a mac_select_pcs() method. Now that all MAC
drivers fill in the supported_interfaces bitmap, it is time to enforce
this. We have already required supported_interfaces to be set in order
for optical SFPs to be configured in commit f81fa96d8a ("net: phylink:
use phy_interface_t bitmaps for optical modules").
Refuse phylink creation if supported_interfaces is empty, and remove
code to deal with cases where this mask is empty.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/E1q0K1u-006EIP-ET@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add support for the Fiberstore SFP-10G-T and Walsun HXSX-ATRC-1
modules. Internally, the PCB silkscreen has what seems to be a part
number of WT_502. Fiberstore use v2.2 whereas Walsun use v2.6.
These modules contain a Marvell AQrate AQR113C PHY, accessible through
I2C 0x51 using the "rollball" protocol. In both cases, the PHY is
programmed to use 10GBASE-R with pause-mode rate adaption.
Unlike the other rollball modules, these only need a four second delay
before we can talk to the PHY.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/E1q0JfS-006Dqc-8t@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'x86_urgent_for_6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Dave Hansen:
"This works around and issue where the INVLPG instruction may miss
invalidating kernel TLB entries in recent hybrid CPUs.
I do expect an eventual microcode fix for this. When the microcode
version numbers are known, we can circle back around and add them the
model table to disable this workaround"
* tag 'x86_urgent_for_6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Avoid incomplete Global INVLPG flushes
Only one fix has tricked through by Harshit Mogalapalli found through
static analysis with smatch.
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Merge tag 'modules-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull module fix from Luis Chamberlain:
"Only one fix has trickled through. Harshit Mogalapalli found a
use-after-free bug through static analysis with smatch"
* tag 'modules-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
module: Fix use-after-free bug in read_file_mod_stats()
Smatch warns:
kernel/module/stats.c:394 read_file_mod_stats()
warn: passing freed memory 'buf'
We are passing 'buf' to simple_read_from_buffer() after freeing it.
Fix this by changing the order of 'simple_read_from_buffer' and 'kfree'.
Fixes: df3e764d8e ("module: add debug stats to help identify memory pressure")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Stable Fix:
* Don't change task->tk_status after the call to rpc_exit_task
Other Bugfixes:
* Convert kmap_atomic() to kmap_local_folio()
* Fix a potential double free with READ_PLUS
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Merge tag 'nfs-for-6.4-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"Stable Fix:
- Don't change task->tk_status after the call to rpc_exit_task
Other Bugfixes:
- Convert kmap_atomic() to kmap_local_folio()
- Fix a potential double free with READ_PLUS"
* tag 'nfs-for-6.4-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFSv4.2: Fix a potential double free with READ_PLUS
SUNRPC: Don't change task->tk_status after the call to rpc_exit_task
NFS: Convert kmap_atomic() to kmap_local_folio()
The LRU and LRU_PERCPU maps allocate a new element on update before locking the
target hash table bucket. Right after that the maps try to lock the bucket.
If this fails, then maps return -EBUSY to the caller without releasing the
allocated element. This makes the element untracked: it doesn't belong to
either of free lists, and it doesn't belong to the hash table, so can't be
re-used; this eventually leads to the permanent -ENOMEM on LRU map updates,
which is unexpected. Fix this by returning the element to the local free list
if bucket locking fails.
Fixes: 20b6cc34ea ("bpf: Avoid hashtab deadlock with map_locked")
Signed-off-by: Anton Protopopov <aspsk@isovalent.com>
Link: https://lore.kernel.org/r/20230522154558.2166815-1-aspsk@isovalent.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Merge series from Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>:
Series of fixes for issues found during development and testing,
primarly for avs driver.
It's reported that the recording started right after the driver probe
doesn't work properly, and it turned out that this is related with the
codec auto-suspend. Namely, after the probe phase, the usage count
goes zero, and the auto-suspend is programmed, but the codec is kept
still active until the auto-suspend expiration. When an application
(e.g. alsactl) updates the mixer values at this moment, the values are
cached but not actually written. Then, starting arecord thereafter
also results in the silence because of the missing unmute.
The root cause is the handling of "lazy update" mode; when a mixer
value is updated *after* the suspend, it should update only the cache
and exits. At the resume, the cached value is written to the device,
in turn. The problem is that the current code misinterprets the state
of auto-suspend as if it were already suspended.
Although we can add the check of the actual device state after
pm_runtime_get_if_in_use() for catching the missing state, this won't
suffice; the second call of regmap_update_bits_check() will skip
writing the register because the cache has been already updated by the
first call. So we'd need fixes in two different places.
OTOH, a simpler fix is to replace pm_runtime_get_if_in_use() with
pm_runtime_get_if_active() (with ign_usage_count=true). This change
implies that the driver takes the pm refcount if the device is still
in ACTIVE state and continues the processing. A small caveat is that
this will leave the auto-suspend timer. But, since the timer callback
itself checks the device state and aborts gracefully when it's active,
this won't be any substantial problem.
Long story short: we address the missing register-write problem just
by replacing the pm_runtime_*() call in snd_hda_keep_power_up().
Fixes: fc4f000bf8 ("ALSA: hda - Fix unexpected resume through regmap code path")
Reported-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Closes: https://lore.kernel.org/r/a7478636-af11-92ab-731c-9b13c582a70d@linux.intel.com
Suggested-by: Cezary Rojewski <cezary.rojewski@intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230518113520.15213-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
On 68030/020, an instruction such as, moveml %a2-%a3/%a5,%sp@- may cause
a stack page fault during instruction execution (i.e. not at an
instruction boundary) and produce a format 0xB exception frame.
In this situation, the value of USP will be unreliable. If a signal is
to be delivered following the exception, this USP value is used to
calculate the location for a signal frame. This can result in a
corrupted user stack.
The corruption was detected in dash (actually in glibc) where it showed
up as an intermittent "stack smashing detected" message and crash
following signal delivery for SIGCHLD.
It was hard to reproduce that failure because delivery of the signal
raced with the page fault and because the kernel places an unpredictable
gap of up to 7 bytes between the USP and the signal frame.
A format 0xB exception frame can be produced by a bus error or an
address error. The 68030 Users Manual says that address errors occur
immediately upon detection during instruction prefetch. The instruction
pipeline allows prefetch to overlap with other instructions, which means
an address error can arise during the execution of a different
instruction. So it seems likely that this patch may help in the address
error case also.
Reported-and-tested-by: Stan Johnson <userm57@yahoo.com>
Link: https://lore.kernel.org/all/CAMuHMdW3yD22_ApemzW_6me3adq6A458u1_F0v-1EYwK_62jPA@mail.gmail.com/
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: stable@vger.kernel.org
Co-developed-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/9e66262a754fcba50208aa424188896cc52a1dd1.1683365892.git.fthain@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tony Nguyen says:
====================
ice: allow matching on meta data
Michal Swiatkowski says:
This patchset is intended to improve the usability of the switchdev
slow path. Without matching on a meta data values slow path works
based on VF's MAC addresses. It causes a problem when the VF wants
to use more than one MAC address (e.g. when it is in trusted mode).
Parse all meta data in the same place where protocol type fields are
parsed. Add description for the currently implemented meta data. It is
important to note that depending on DDP not all described meta data can
be available. Using not available meta data leads to error returned by
function which is looking for correct words in profiles read from DDP.
There is also one small improvement, remove of rx field in rule info
structure (patch 2). It is redundant.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498 ("i2c: Switch .probe() to not take an id parameter")
convert back to (the new) .probe() to be able to eventually drop
.probe_new() from struct i2c_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When working in slave mode it seems the timing is exceedingly tight.
The TX FIFO can never empty, because the master is driving the clock so
zeros would be sent for those bytes where the FIFO is empty.
Return to interleaving the writing of the TX FIFO and the reading
of the RX FIFO to try to ensure the data is available when required.
Fixes: a84c11e16d ("spi: spi-cadence: Avoid read of RX FIFO before its ready")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230518093927.711358-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Don't keep hand coded offset caluclations and replace it with
container_of(). It should be type safer and a bit less confusing.
It also makes it with a macro instead of inline function to preserve
constness, which was previously casted out like in case of
tcp_v6_send_synack().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are several places which open code comparing PHY IDs. Provide a
couple of helpers to assist with this, using a slightly simpler test
than the original:
- phy_id_compare() compares two arbitary PHY IDs and a mask of the
significant bits in the ID.
- phydev_id_compare() compares the bound phydev with the specified
PHY ID, using the bound driver's mask.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
The mac_an_restart() method will only be called if the driver sets
legacy_pre_march2020, which the altera tse driver does not do.
Therefore, providing a stub is unnecessary.
Fixes: fef2998203 ("net: altera: tse: convert to phylink")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Constraint functions have return values, they should be checked for
potential errors.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230519201711.4073845-8-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
All IPCs using instance_id use 8 bit value. Original commit used 16 bit
value because FW reports possible max value in 16 bit field, but in
practice FW limits the value to 8 bits.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230519201711.4073845-7-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Configurations with multiple codecs attached to the platform are
supported but only if each from the set is different. Add new field
representing the 'Unique ID' so that codecs that share Vendor and Part
IDs can be differentiated and thus enabling support for such
configurations.
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230519201711.4073845-6-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Constant 'C4_CHANNEL' does not exist on the firmware side. Value 0xC is
reserved for 'C7_1' instead.
Fixes: 580a5912d1 ("ASoC: Intel: avs: Declare module configuration types")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230519201711.4073845-5-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Constant 'C4_CHANNEL' does not exist on the firmware side. Value 0xC is
reserved for 'C7_1' instead.
Fixes: 04afbbbb1c ("ASoC: Intel: Skylake: Update the topology interface structure")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230519201711.4073845-4-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Path and its components should be accessed under lock to prevent
problems with one thread modifying them while other tries to read.
Fixes: c8c960c109 ("ASoC: Intel: avs: APL-based platforms support")
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230519201711.4073845-3-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When changing value of kcontrol, FW module to which data should be send
needs to be found. Currently it is done in improper way, fix it. Change
function name to indicate that it looks only for volume module.
This allows to change volume during runtime, instead of only changing
init value.
Fixes: be2b81b519 ("ASoC: Intel: avs: Parse control tuples")
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230519201711.4073845-2-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The new variable is only used when IPCONFIG_BOOTP is defined and otherwise
causes a warning:
net/ipv4/ipconfig.c:177:12: error: 'ic_nameservers_fallback' defined but not used [-Werror=unused-variable]
Move it next to the user.
Fixes: 81ac2722fa ("net: ipconfig: Allow DNS to be overwritten by DHCPACK")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is a cleanup for fec driver. The fec_enet_reset_skb()
is used to free skb buffers for tx queues and is only invoked in
fec_restart(). However, fec_enet_bd_init() also resets skb buffers
and is invoked in fec_restart() too. So fec_enet_reset_skb() is
redundant and useless.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The XDP features are supported since the commit 66c0e13ad2
("drivers: net: turn on XDP features"). Currently, the fec
driver supports NETDEV_XDP_ACT_BASIC, NETDEV_XDP_ACT_REDIRECT
and NETDEV_XDP_ACT_NDO_XMIT. So turn on these XDP features
for fec driver.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When doing plpmtu probe, the probe size is growing every time when it
receives the ACK during the Search state until the probe fails. When
the failure occurs, pl.probe_high is set and it goes to the Complete
state.
However, if the link pmtu is huge, like 65535 in loopback_dev, the probe
eventually keeps using SCTP_MAX_PLPMTU as the probe size and never fails.
Because of that, pl.probe_high can not be set, and the plpmtu probe can
never go to the Complete state.
Fix it by setting pl.probe_high to SCTP_MAX_PLPMTU when the probe size
grows to SCTP_MAX_PLPMTU in sctp_transport_pl_recv(). Also, not allow
the probe size greater than SCTP_MAX_PLPMTU in the Complete state.
Fixes: b87641aff9 ("sctp: do state transition when a probe succeeds on HB ACK recv path")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* Plug a race in the stage-2 mapping code where the IPA and the PA
would end up being out of sync
* Make better use of the bitmap API (bitmap_zero, bitmap_zalloc...)
* FP/SVE/SME documentation update, in the hope that this field
becomes clearer...
* Add workaround for Apple SEIS brokenness to a new SoC
* Random comment fixes
x86:
* add MSR_IA32_TSX_CTRL into msrs_to_save
* fixes for XCR0 handling in SGX enclaves
Generic:
* Fix vcpu_array[0] races
* Fix race between starting a VM and "reboot -f"
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Plug a race in the stage-2 mapping code where the IPA and the PA
would end up being out of sync
- Make better use of the bitmap API (bitmap_zero, bitmap_zalloc...)
- FP/SVE/SME documentation update, in the hope that this field
becomes clearer...
- Add workaround for Apple SEIS brokenness to a new SoC
- Random comment fixes
x86:
- add MSR_IA32_TSX_CTRL into msrs_to_save
- fixes for XCR0 handling in SGX enclaves
Generic:
- Fix vcpu_array[0] races
- Fix race between starting a VM and 'reboot -f'"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: VMX: add MSR_IA32_TSX_CTRL into msrs_to_save
KVM: x86: Don't adjust guest's CPUID.0x12.1 (allowed SGX enclave XFRM)
KVM: VMX: Don't rely _only_ on CPUID to enforce XCR0 restrictions for ECREATE
KVM: Fix vcpu_array[0] races
KVM: VMX: Fix header file dependency of asm/vmx.h
KVM: Don't enable hardware after a restart/shutdown is initiated
KVM: Use syscore_ops instead of reboot_notifier to hook restart/shutdown
KVM: arm64: vgic: Add Apple M2 PRO/MAX cpus to the list of broken SEIS implementations
KVM: arm64: Clarify host SME state management
KVM: arm64: Restructure check for SVE support in FP trap handler
KVM: arm64: Document check for TIF_FOREIGN_FPSTATE
KVM: arm64: Fix repeated words in comments
KVM: arm64: Constify start/end/phys fields of the pgtable walker data
KVM: arm64: Infer PA offset from VA in hyp map walker
KVM: arm64: Infer the PA offset from IPA in stage-2 map walker
KVM: arm64: Use the bitmap API to allocate bitmaps
KVM: arm64: Slightly optimize flush_context()
- Fail graciously if BUILD_BPF_SKEL=1 is specified and clang isn't available.
- Add empty 'struct rq' to 'perf lock contention' to satisfy libbpf 'runqueue'
type verification. This feature is built only with BUILD_BPF_SKEL=1.
- Make vmlinux.h use bpf.h and perf_event.h in source directory, not system
ones that may be old and not have things like 'union perf_sample_weight'.
- Add system include paths to BPF builds to pick things missing in the headers
included by clang -target bpf.
- Update various header copies with the kernel sources.
- Change divide by zero and not supported events behavior to show 'nan'/'not
counted' in 'perf stat' output. This happens when using things like
'perf stat -M TopdownL2 true', involving JSON metrics.
- Update no event/metric expectations affected by using JSON metrics in
'perf stat -ddd' perf test.
- Avoid segv with 'perf stat --topdown' for metrics without a group.
- Do not assume which events may have a PMU name, allowing the logic to keep an
AUX event group together. Makes this usecase work again:
$ perf record --no-bpf-event -c 10 -e '{intel_pt//,tlb_flush.stlb_any/aux-sample-size=8192/pp}:u' -- sleep 0.1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.078 MB perf.data ]
$ perf script -F-dso,+addr | grep -C5 tlb_flush.stlb_any | head -11
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc82a2 dl_main+0x9a2 => 7f5350cb38f0 _dl_add_to_namespace_list+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cb3908 _dl_add_to_namespace_list+0x18 => 7f5350cbb080 rtld_mutex_dummy+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc8350 dl_main+0xa50 => 0 [unknown]
sleep 20444 [003] 7939.510244: 1 branches:uH: 7f5350cc83ca dl_main+0xaca => 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510245: 1 branches:uH: 7f5350caeb60 _dl_process_pt_gnu_property+0x0 => 0 [unknown]
sleep 20444 7939.510245: 10 tlb_flush.stlb_any/aux-sample-size=8192/pp: 0 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc87fe dl_main+0xefe => 7f5350ccd240 strcmp+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc8862 dl_main+0xf62 => 0 [unknown]
- Add a check for the above use case in 'perf test test_intel_pt'.
- Fix build with refcount checking on arm64, it was still accessing fields that
need to be wrapped so that the refcounted struct gets checked.
- Fix contextid validation in ARM's CS-ETM, so that older kernels without that
field can still be supported.
- Skip unsupported aggregation for stat events found in perf.data files in 'perf script'.
- Add stat test for record and script to check the previous problem.
- Remove needless debuginfod queries from 'perf test java symbol', this was
just making the test take a long time to complete.
- Address python SafeConfigParser() deprecation warning in 'perf test attr'.
- Fix __NR_execve undeclared on i386 'perf bench syscall' build error.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.4-1-2023-05-20' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fail graciously if BUILD_BPF_SKEL=1 is specified and clang isn't
available
- Add empty 'struct rq' to 'perf lock contention' to satisfy libbpf
'runqueue' type verification. This feature is built only with
BUILD_BPF_SKEL=1
- Make vmlinux.h use bpf.h and perf_event.h in source directory, not
system ones that may be old and not have things like 'union
perf_sample_weight'
- Add system include paths to BPF builds to pick things missing in the
headers included by clang -target bpf
- Update various header copies with the kernel sources
- Change divide by zero and not supported events behavior to show
'nan'/'not counted' in 'perf stat' output.
This happens when using things like 'perf stat -M TopdownL2 true',
involving JSON metrics
- Update no event/metric expectations affected by using JSON metrics in
'perf stat -ddd' perf test
- Avoid segv with 'perf stat --topdown' for metrics without a group
- Do not assume which events may have a PMU name, allowing the logic to
keep an AUX event group together. Makes this usecase work again:
$ perf record --no-bpf-event -c 10 -e '{intel_pt//,tlb_flush.stlb_any/aux-sample-size=8192/pp}:u' -- sleep 0.1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.078 MB perf.data ]
$ perf script -F-dso,+addr | grep -C5 tlb_flush.stlb_any | head -11
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc82a2 dl_main+0x9a2 => 7f5350cb38f0 _dl_add_to_namespace_list+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cb3908 _dl_add_to_namespace_list+0x18 => 7f5350cbb080 rtld_mutex_dummy+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc8350 dl_main+0xa50 => 0 [unknown]
sleep 20444 [003] 7939.510244: 1 branches:uH: 7f5350cc83ca dl_main+0xaca => 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510245: 1 branches:uH: 7f5350caeb60 _dl_process_pt_gnu_property+0x0 => 0 [unknown]
sleep 20444 7939.510245: 10 tlb_flush.stlb_any/aux-sample-size=8192/pp: 0 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc87fe dl_main+0xefe => 7f5350ccd240 strcmp+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc8862 dl_main+0xf62 => 0 [unknown]
- Add a check for the above use case in 'perf test test_intel_pt'
- Fix build with refcount checking on arm64, it was still accessing
fields that need to be wrapped so that the refcounted struct gets
checked
- Fix contextid validation in ARM's CS-ETM, so that older kernels
without that field can still be supported
- Skip unsupported aggregation for stat events found in perf.data files
in 'perf script'
- Add stat test for record and script to check the previous problem
- Remove needless debuginfod queries from 'perf test java symbol', this
was just making the test take a long time to complete
- Address python SafeConfigParser() deprecation warning in 'perf test
attr'
- Fix __NR_execve undeclared on i386 'perf bench syscall' build error
* tag 'perf-tools-fixes-for-v6.4-1-2023-05-20' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (33 commits)
perf bench syscall: Fix __NR_execve undeclared build error
perf test attr: Fix python SafeConfigParser() deprecation warning
perf test attr: Update no event/metric expectations
tools headers disabled-features: Sync with the kernel sources
tools headers UAPI: Sync arch prctl headers with the kernel sources
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'
tools headers x86 cpufeatures: Sync with the kernel sources
tools headers UAPI: Sync s390 syscall table file that wires up the memfd_secret syscall
tools headers UAPI: Sync linux/prctl.h with the kernel sources
perf metrics: Avoid segv with --topdown for metrics without a group
perf lock contention: Add empty 'struct rq' to satisfy libbpf 'runqueue' type verification
perf cs-etm: Fix contextid validation
perf arm64: Fix build with refcount checking
perf test: Add stat test for record and script
perf script: Skip aggregation for stat events
perf build: Add system include paths to BPF builds
perf bpf skels: Make vmlinux.h use bpf.h and perf_event.h in source directory
perf parse-events: Do not break up AUX event group
perf test test_intel_pt.sh: Test sample mode with event with PMU name
perf evsel: Modify group pmu name for software events
...
- Fix broken soft dirty tracking when using the Radix MMU (>= P9).
- Fix ISA mapping when "ranges" property is not present, for PASemi Nemo boards.
- Fix a possible WARN_ON_ONCE hitting in BPF extable handling.
- Fix incorrect DMA address handling when using 2MB TCEs.
- Fix a bug in IOMMU table handling for SR-IOV devices.
- Fix the recent rework of IOMMU handling which left arch code calling clean
up routines that are handled by the IOMMU core.
- A few assorted build fixes.
Thanks to: Christian Zigotzky, Dan Horák, Gaurav Batra, Hari Bathini, Jason
Gunthorpe, Nathan Chancellor, Naveen N. Rao, Nicholas Piggin, Pali Rohár, Randy
Dunlap, Rob Herring.
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Merge tag 'powerpc-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix broken soft dirty tracking when using the Radix MMU (>= P9)
- Fix ISA mapping when "ranges" property is not present, for PASemi
Nemo boards
- Fix a possible WARN_ON_ONCE hitting in BPF extable handling
- Fix incorrect DMA address handling when using 2MB TCEs
- Fix a bug in IOMMU table handling for SR-IOV devices
- Fix the recent rework of IOMMU handling which left arch code calling
clean up routines that are handled by the IOMMU core
- A few assorted build fixes
Thanks to Christian Zigotzky, Dan Horák, Gaurav Batra, Hari Bathini,
Jason Gunthorpe, Nathan Chancellor, Naveen N. Rao, Nicholas Piggin, Pali
Rohár, Randy Dunlap, and Rob Herring.
* tag 'powerpc-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/iommu: Incorrect DDW Table is referenced for SR-IOV device
powerpc/iommu: DMA address offset is incorrectly calculated with 2MB TCEs
powerpc/iommu: Remove iommu_del_device()
powerpc/crypto: Fix aes-gcm-p10 build when VSX=n
powerpc/bpf: populate extable entries only during the last pass
powerpc/boot: Disable power10 features after BOOTAFLAGS assignment
powerpc/64s/radix: Fix soft dirty tracking
powerpc/fsl_uli1575: fix kconfig warnings and build errors
powerpc/isa-bridge: Fix ISA mapping when "ranges" is not present
