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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
A fix for fbdev on big endian systems, a condition fix for a sharp panel
at removal, and a fix for qxl to prevent unpinned buffer access under
certain conditions.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240711-benign-rich-mouflon-2eeafe@houat
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link_is_up() and tipc_link_is_up() have the same functionality.
Consolidate these functions.
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Reviewed-by: Tung Nguyen <tung.q.nguyen@endava.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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struct tipc_name_table in core.h is not used. Remove this declaration.
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Reviewed-by: Tung Nguyen <tung.q.nguyen@endava.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 732b32daef80 ("powerpc: Remove core support for 40x") removed 40x.
Update documentation accordingly.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/c2d64bebc514ca892a12e51a68821a6317048d3a.1720694954.git.christophe.leroy@csgroup.eu
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Remove stale references to 40x.
Fixes: e939da89d024 ("powerpc: Remove 40x from Kconfig and defconfig")
Fixes: 548f5244f106 ("powerpc/40x: Remove EP405")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/ab30ae302783d8617d407864b92db1b926ab5ab9.1720694914.git.christophe.leroy@csgroup.eu
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Breno Leitao says:
====================
netconsole: improve code clarity
These changes aim to enhance the reliability of netconsole by
eliminating the potential race condition and improve maintainability
by making the code more straightforward to understand and modify.
====================
Link: https://patch.msgid.link/20240709144403.544099-1-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When disabling a netconsole target, enabled_store() is called with
enabled=false. Currently, this results in updating the nt->enabled
field twice:
1. Inside the if/else block, with the target_list_lock spinlock held
2. Later, without the target_list_lock
This patch eliminates the redundancy by setting the field only once,
improving efficiency and reducing potential race conditions.
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240709144403.544099-3-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 'enabled' variable is already a bool, so casting it to its value
is redundant.
Remove the superfluous cast, improving code clarity without changing
functionality.
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240709144403.544099-2-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Linux 6.9+ is unable to start a degraded RAID1 array with one drive,
when that drive has a write-mostly flag set. During such an attempt,
the following assertion in bio_split() is hit:
BUG_ON(sectors <= 0);
Call Trace:
? bio_split+0x96/0xb0
? exc_invalid_op+0x53/0x70
? bio_split+0x96/0xb0
? asm_exc_invalid_op+0x1b/0x20
? bio_split+0x96/0xb0
? raid1_read_request+0x890/0xd20
? __call_rcu_common.constprop.0+0x97/0x260
raid1_make_request+0x81/0xce0
? __get_random_u32_below+0x17/0x70
? new_slab+0x2b3/0x580
md_handle_request+0x77/0x210
md_submit_bio+0x62/0xa0
__submit_bio+0x17b/0x230
submit_bio_noacct_nocheck+0x18e/0x3c0
submit_bio_noacct+0x244/0x670
After investigation, it turned out that choose_slow_rdev() does not set
the value of max_sectors in some cases and because of it,
raid1_read_request calls bio_split with sectors == 0.
Fix it by filling in this variable.
This bug was introduced in
commit dfa8ecd167c1 ("md/raid1: factor out choose_slow_rdev() from read_balance()")
but apparently hidden until
commit 0091c5a269ec ("md/raid1: factor out helpers to choose the best rdev from read_balance()")
shortly thereafter.
Cc: stable@vger.kernel.org # 6.9.x+
Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Fixes: dfa8ecd167c1 ("md/raid1: factor out choose_slow_rdev() from read_balance()")
Cc: Song Liu <song@kernel.org>
Cc: Yu Kuai <yukuai3@huawei.com>
Cc: Paul Luse <paul.e.luse@linux.intel.com>
Cc: Xiao Ni <xni@redhat.com>
Cc: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Link: https://lore.kernel.org/linux-raid/20240706143038.7253-1-mat.jonczyk@o2.pl/
--
Tested on both Linux 6.10 and 6.9.8.
Inside a VM, mdadm testsuite for RAID1 on 6.10 did not find any problems:
./test --dev=loop --no-error --raidtype=raid1
(on 6.9.8 there was one failure, caused by external bitmap support not
compiled in).
Notes:
- I was reliably getting deadlocks when adding / removing devices
on such an array - while the array was loaded with fsstress with 20
concurrent processes. When the array was idle or loaded with fsstress
with 8 processes, no such deadlocks happened in my tests.
This occurred also on unpatched Linux 6.8.0 though, but not on
6.1.97-rc1, so this is likely an independent regression (to be
investigated).
- I was also getting deadlocks when adding / removing the bitmap on the
array in similar conditions - this happened on Linux 6.1.97-rc1
also though. fsstress with 8 concurrent processes did cause it only
once during many tests.
- in my testing, there was once a problem with hot adding an
internal bitmap to the array:
mdadm: Cannot add bitmap while array is resyncing or reshaping etc.
mdadm: failed to set internal bitmap.
even though no such reshaping was happening according to /proc/mdstat.
This seems unrelated, though.
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240711202316.10775-1-mat.jonczyk@o2.pl
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The commit db5e653d7c9f ("md: delay choosing sync action to
md_start_sync()") delays the start of the sync action. In a
clustered environment, this will cause another node to first
activate the spare disk and skip recovery. As a result, no
nodes will perform recovery when a disk is added or re-added.
Before db5e653d7c9f:
```
node1 node2
----------------------------------------------------------------
md_check_recovery
+ md_update_sb
| sendmsg: METADATA_UPDATED
+ md_choose_sync_action process_metadata_update
| remove_and_add_spares //node1 has not finished adding
+ call mddev->sync_work //the spare disk:do nothing
md_start_sync
starts md_do_sync
md_do_sync
+ grabbed resync_lockres:DLM_LOCK_EX
+ do syncing job
md_check_recovery
sendmsg: METADATA_UPDATED
process_metadata_update
//activate spare disk
... ...
md_do_sync
waiting to grab resync_lockres:EX
```
After db5e653d7c9f:
(note: if 'cmd:idle' sets MD_RECOVERY_INTR after md_check_recovery
starts md_start_sync, setting the INTR action will exacerbate the
delay in node1 calling the md_do_sync function.)
```
node1 node2
----------------------------------------------------------------
md_check_recovery
+ md_update_sb
| sendmsg: METADATA_UPDATED
+ calls mddev->sync_work process_metadata_update
//node1 has not finished adding
//the spare disk:do nothing
md_start_sync
+ md_choose_sync_action
| remove_and_add_spares
+ calls md_do_sync
md_check_recovery
md_update_sb
sendmsg: METADATA_UPDATED
process_metadata_update
//activate spare disk
... ... ... ...
md_do_sync
+ grabbed resync_lockres:EX
+ raid1_sync_request skip sync under
conf->fullsync:0
md_do_sync
1. waiting to grab resync_lockres:EX
2. when node1 could grab EX lock,
node1 will skip resync under recovery_offset:MaxSector
```
How to trigger:
```(commands @node1)
# to easily watch the recovery status
echo 2000 > /proc/sys/dev/raid/speed_limit_max
ssh root@node2 "echo 2000 > /proc/sys/dev/raid/speed_limit_max"
mdadm -CR /dev/md0 -l1 -b clustered -n 2 /dev/sda /dev/sdb --assume-clean
ssh root@node2 mdadm -A /dev/md0 /dev/sda /dev/sdb
mdadm --manage /dev/md0 --fail /dev/sda --remove /dev/sda
mdadm --manage /dev/md0 --add /dev/sdc
=== "cat /proc/mdstat" on both node, there are no recovery action. ===
```
How to fix:
because md layer code logic is hard to restore for speeding up sync job
on local node, we add new cluster msg to pending the another node to
active disk.
Signed-off-by: Heming Zhao <heming.zhao@suse.com>
Reviewed-by: Su Yue <glass.su@suse.com>
Acked-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240709104120.22243-2-heming.zhao@suse.com
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The commit 1bbe254e4336 ("md-cluster: check for timeout while a
new disk adding") is correct in terms of code syntax but not
suite real clustered code logic.
When a timeout occurs while adding a new disk, if recv_daemon()
bypasses the unlock for ack_lockres:CR, another node will be waiting
to grab EX lock. This will cause the cluster to hang indefinitely.
How to fix:
1. In dlm_lock_sync(), change the wait behaviour from forever to a
timeout, This could avoid the hanging issue when another node
fails to handle cluster msg. Another result of this change is
that if another node receives an unknown msg (e.g. a new msg_type),
the old code will hang, whereas the new code will timeout and fail.
This could help cluster_md handle new msg_type from different
nodes with different kernel/module versions (e.g. The user only
updates one leg's kernel and monitors the stability of the new
kernel).
2. The old code for __sendmsg() always returns 0 (success) under the
design (must successfully unlock ->message_lockres). This commit
makes this function return an error number when an error occurs.
Fixes: 1bbe254e4336 ("md-cluster: check for timeout while a new disk adding")
Signed-off-by: Heming Zhao <heming.zhao@suse.com>
Reviewed-by: Su Yue <glass.su@suse.com>
Acked-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240709104120.22243-1-heming.zhao@suse.com
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There are a couple of places where the test script "sleep"s to wait for
some external condition to be met.
This is error prone, specially in slow systems (identified in CI by
"KSFT_MACHINE_SLOW=yes").
To fix this, add a "ovs_wait" function that tries to execute a command
a few times until it succeeds. The timeout used is set to 5s for
"normal" systems and doubled if a slow CI machine is detected.
This should make the following work:
$ vng --build \
--config tools/testing/selftests/net/config \
--config kernel/configs/debug.config
$ vng --run . --user root -- "make -C tools/testing/selftests/ \
KSFT_MACHINE_SLOW=yes TARGETS=net/openvswitch run_tests"
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Reviewed-by: Ilya Maximets <i.maximets@ovn.org>
Link: https://patch.msgid.link/20240710090500.1655212-1-amorenoz@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In fact, this structure contains a flexible array at the end, but
historically its size, alignment etc., is calculated manually.
There are several instances of the structure embedded into other
structures, but also there's ongoing effort to remove them and we
could in the meantime declare &net_device properly.
Declare the array explicitly, use struct_size() and store the array
size inside the structure, so that __counted_by() can be applied.
Don't use PTR_ALIGN(), as SLUB itself tries its best to ensure the
allocated buffer is aligned to what the user expects.
Also, change its alignment from %NETDEV_ALIGN to the cacheline size
as per several suggestions on the netdev ML.
bloat-o-meter for vmlinux:
free_netdev 445 440 -5
netdev_freemem 24 - -24
alloc_netdev_mqs 1481 1450 -31
On x86_64 with several NICs of different vendors, I was never able to
get a &net_device pointer not aligned to the cacheline size after the
change.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Link: https://patch.msgid.link/20240710113036.2125584-1-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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A typo makes PSAMPLE_ATTR_SAMPLE_RATE netlink flag be added to the wrong
sk_buff.
Fix the error and make the input sk_buff pointer "const" so that it
doesn't happen again.
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Fixes: 7b1b2b60c63f ("net: psample: allow using rate as probability")
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Link: https://patch.msgid.link/20240710171004.2164034-1-amorenoz@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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To have enough space to write all possible sprintf() args. Currently
'name' size is 16, but the first '%s' specifier may already need at
least 16 characters, since 'bnad->netdev->name' is used there.
For '%d' specifiers, assume that they require:
* 1 char for 'tx_id + tx_info->tcb[i]->id' sum, BNAD_MAX_TXQ_PER_TX is 8
* 2 chars for 'rx_id + rx_info->rx_ctrl[i].ccb->id', BNAD_MAX_RXP_PER_RX
is 16
And replace sprintf with snprintf.
Detected using the static analysis tool - Svace.
Fixes: 8b230ed8ec96 ("bna: Brocade 10Gb Ethernet device driver")
Signed-off-by: Alexey Kodanev <aleksei.kodanev@bell-sw.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This change caused PSR SU panels to not read from their remote fb,
preventing us from entering self-refresh. It is a regression.
This reverts commit 6b8487cdf9fc7bae707519ac5b5daeca18d1e85b.
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Remove wrong EIO to EGAIN conversion and pass all errors as is.
After commit 230f3d53a547 ("i40e: remove i40e_status"), which should only
replace F/W specific error codes with Linux kernel generic, all EIO errors
suddenly started to be converted into EAGAIN which leads nvmupdate to retry
until it timeouts and sometimes fails after more than 20 minutes in the
middle of NVM update, so NVM becomes corrupted.
The bug affects users only at the time when they try to update NVM, and
only F/W versions that generate errors while nvmupdate. For example, X710DA2
with 0x8000ECB7 F/W is affected, but there are probably more...
Command for reproduction is just NVM update:
./nvmupdate64
In the log instead of:
i40e_nvmupd_exec_aq err I40E_ERR_ADMIN_QUEUE_ERROR aq_err I40E_AQ_RC_ENOMEM)
appears:
i40e_nvmupd_exec_aq err -EIO aq_err I40E_AQ_RC_ENOMEM
i40e: eeprom check failed (-5), Tx/Rx traffic disabled
The problematic code did silently convert EIO into EAGAIN which forced
nvmupdate to ignore EAGAIN error and retry the same operation until timeout.
That's why NVM update takes 20+ minutes to finish with the fail in the end.
Fixes: 230f3d53a547 ("i40e: remove i40e_status")
Co-developed-by: Kelvin Kang <kelvin.kang@intel.com>
Signed-off-by: Kelvin Kang <kelvin.kang@intel.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240710224455.188502-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:
====================
wireless-next patches for v6.11
Most likely the last "new features" pull request for v6.11 with
changes both in stack and in drivers. The big thing is the multiple
radios for wiphy feature which makes it possible to better advertise
radio capabilities to user space. mt76 enabled MLO and iwlwifi
re-enabled MLO, ath12k and rtw89 Wi-Fi 6 devices got WoWLAN support.
Major changes:
cfg80211/mac80211
* remove DEAUTH_NEED_MGD_TX_PREP flag
* multiple radios per wiphy support
mac80211_hwsim
* multi-radio wiphy support
ath12k
* DebugFS support for datapath statistics
* WCN7850: support for WoW (Wake on WLAN)
* WCN7850: device-tree bindings
ath11k
* QCA6390: device-tree bindings
iwlwifi
* mvm: re-enable Multi-Link Operation (MLO)
* aggregation (A-MSDU) optimisations
rtw89
* preparation for RTL8852BE-VT support
* WoWLAN support for WiFi 6 chips
* 36-bit PCI DMA support
mt76
* mt7925 Multi-Link Operation (MLO) support
* tag 'wireless-next-2024-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (204 commits)
wifi: mac80211: fix AP chandef capturing in CSA
wifi: iwlwifi: correctly reference TSO page information
wifi: mt76: mt792x: fix scheduler interference in drv own process
wifi: mt76: mt7925: enabling MLO when the firmware supports it
wifi: mt76: mt7925: remove the unused mt7925_mcu_set_chan_info
wifi: mt76: mt7925: update mt7925_mac_link_bss_add for MLO
wifi: mt76: mt7925: update mt7925_mcu_bss_basic_tlv for MLO
wifi: mt76: mt7925: update mt7925_mcu_set_timing for MLO
wifi: mt76: mt7925: update mt7925_mcu_sta_phy_tlv for MLO
wifi: mt76: mt7925: update mt7925_mcu_sta_rate_ctrl_tlv for MLO
wifi: mt76: mt7925: add mt7925_mcu_sta_eht_mld_tlv for MLO
wifi: mt76: mt7925: update mt7925_mcu_sta_update for MLO
wifi: mt76: mt7925: update mt7925_mcu_add_bss_info for MLO
wifi: mt76: mt7925: update mt7925_mcu_bss_mld_tlv for MLO
wifi: mt76: mt7925: update mt7925_mcu_sta_mld_tlv for MLO
wifi: mt76: mt7925: add mt7925_[assign,unassign]_vif_chanctx
wifi: mt76: add def_wcid to struct mt76_wcid
wifi: mt76: mt7925: report link information in rx status
wifi: mt76: mt7925: update rate index according to link id
wifi: mt76: mt7925: add link handling in the mt7925_ipv6_addr_change
...
====================
Link: https://patch.msgid.link/20240711102353.0C849C116B1@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When user submits a rxfh set command without touching XFRM_SYM_XOR,
rxfh.input_xfrm is set to RXH_XFRM_NO_CHANGE, which is equal to 0xff.
Testing if (rxfh.input_xfrm & RXH_XFRM_SYM_XOR &&
!ops->cap_rss_sym_xor_supported)
return -EOPNOTSUPP;
Will always be true on devices that don't set cap_rss_sym_xor_supported,
since rxfh.input_xfrm & RXH_XFRM_SYM_XOR is always true, if input_xfrm
was not set, i.e RXH_XFRM_NO_CHANGE=0xff, which will result in failure
of any command that doesn't require any change of XFRM, e.g RSS context
or hash function changes.
To avoid this breakage, test if rxfh.input_xfrm != RXH_XFRM_NO_CHANGE
before testing other conditions. Note that the problem will only trigger
with XFRM-aware userspace, old ethtool CLI would continue to work.
Fixes: 0dd415d15505 ("net: ethtool: add a NO_CHANGE uAPI for new RXFH's input_xfrm")
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://patch.msgid.link/20240710225538.43368-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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IFLA_MAX is increasing slowly but surely.
Some compilers use more than 512 bytes of stack in rtnetlink_rcv_msg()
because it calls rtnl_calcit() for RTM_GETLINK message.
Use noinline_for_stack attribute to not inline rtnl_calcit(),
and directly use nla_for_each_attr_type() (Jakub suggestion)
because we only care about IFLA_EXT_MASK at this stage.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240710151653.3786604-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Replace a comma between expression statements by a semicolon.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240709072838.1152880-1-nichen@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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btree_root_lock is for the root keys in btree_root, not the pointers to
the nodes themselves; this fixes a lock ordering issue between
btree_root_lock and btree node locks.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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proper lock ordering is: fs_reclaim -> btree node locks
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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not using unlock_long() blocks key cache reclaim, and the allocator may
take awhile
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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This reverts commit 86d81ec5f5f05846c7c6e48ffb964b24cba2e669.
This wasn't tested with memcg enabled, it immediately hits a null ptr
deref in list_lru_add().
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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On newer SoCs, the I2C hardware can require a power domain to operate.
Since the same compatible is used for older and newer SoCs make
power-domains property optional.
Signed-off-by: George Stark <gnstark@salutedevices.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
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The header file linux/bootconfig.h is included whether __KERNEL__ is
defined or not.
Include it only once before the #ifdef/#else/#endif preprocessor
directives and remove the following make includecheck warning:
linux/bootconfig.h is included more than once
Move the comment to the top and delete the now empty #else block.
Link: https://lore.kernel.org/all/20240711084315.1507-1-thorsten.blum@toblux.com/
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
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Series to fix XOR math for DPA to SPA translation
- Refactor and fold cxl_trace_hpa() into cxl_dpa_to_hpa()
- Complete DPA->HPA->SPA translation and correct XOR translation issue
- Add new method to verify a CXL target position
- Remove old method of CXL target position verifiation
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R-Car Gen3+ needs a reset before every controller transfer. That erases
configuration of a potentially in parallel running local target
instance. To avoid this disruption, avoid controller transfers if a
local target is running. Also, disable SMBusHostNotify because it
requires being a controller and local target at the same time.
Fixes: 3b770017b03a ("i2c: rcar: handle RXDMA HW behaviour on Gen3")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
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The response code of IOMMUFD_PAGE_RESP_FAILURE was defined to be
equivalent to the "Response Failure" in PCI spec, section 10.4.2.1.
This response code indicates that one or more pages within the
associated request group have encountered or caused an unrecoverable
error. Therefore, this response disables the PRI at the function.
Modern I/O virtualization technologies, like SR-IOV, share PRI among
the assignable device units. Therefore, a response failure on one unit
might cause I/O failure on other units.
Remove this response code so that user space can only respond with
SUCCESS or INVALID. The VMM is recommended to emulate a failure response
as a PRI reset, or PRI disable and changing to a non-PRI domain.
Fixes: c714f15860fc ("iommufd: Add fault and response message definitions")
Link: https://lore.kernel.org/r/20240710083341.44617-2-baolu.lu@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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The CXL Spec 3.1 Table 9-22 requires that the BIOS populate the CFMWS
target list in interleave target order. This means the calculations
the CXL driver added to determine positions when XOR math is in use,
along with the entire XOR vs Modulo call back setup is not needed.
A prior patch added a common method to verify positions.
Remove the now unused code related to the cxl_calc_hb_fn.
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://patch.msgid.link/2e2c32a2d0f1007e920b58712d15edad2e48d857.1719980933.git.alison.schofield@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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When a root decoder is configured the interleave target list is read
from the BIOS populated CFMWS structure. Per the CXL spec 3.1 Table
9-22 the target list is in interleave order. The CXL driver populates
its decoder target list in the same order and stores it in 'struct
cxl_switch_decoder' field "@target: active ordered target list in
current decoder configuration"
Given the promise of an ordered list, the driver can stop duplicating
the work of BIOS and simply check target positions against the ordered
list during region configuration.
The simplified check against the ordered list is presented here.
A follow-on patch will remove the unused code.
For Modulo arithmetic this is not a fix, only a simplification.
For XOR arithmetic this is a fix for HB IW of 3,6,12.
Fixes: f9db85bfec0d ("cxl/acpi: Support CXL XOR Interleave Math (CXIMS)")
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://patch.msgid.link/35d08d3aba08fee0f9b86ab1cef0c25116ca8a55.1719980933.git.alison.schofield@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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When a device reports a DPA in events like poison, general_media,
and dram, the driver translates that DPA back to an HPA. Presently,
the CXL driver translation only considers the Modulo position and
will report the wrong HPA for XOR configured root decoders.
Add a helper function that restores the XOR'd bits during DPA->HPA
address translation. Plumb a root decoder callback to the new helper
when XOR interleave arithmetic is in use. For Modulo arithmetic, just
let the callback be NULL - as in no extra work required.
Upon completion of a DPA->HPA translation a couple of checks are
performed on the result. One simply confirms that the calculated
HPA is within the address range of the region. That test is useful
for both Modulo and XOR interleave arithmetic decodes.
A second check confirms that the HPA is within an expected chunk
based on the endpoints position in the region and the region
granularity. An XOR decode disrupts the Modulo pattern making the
chunk check useless.
To align the checks with the proper decode, pull the region range
check inline and use the helper to do the chunk check for Modulo
decodes only.
A cxl-test unit test is posted for upstream review here:
https://lore.kernel.org/20240624210644.495563-1-alison.schofield@intel.com/
Fixes: 28a3ae4ff66c ("cxl/trace: Add an HPA to cxl_poison trace events")
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Tested-by: Diego Garcia Rodriguez <diego.garcia.rodriguez@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/1a1ac880d9f889bd6384e657e810431b9a0a72e5.1719980933.git.alison.schofield@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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Although cxl_trace_hpa() is used to populate TRACE EVENTs with HPA
addresses the work it performs is a DPA to HPA translation not a
trace. Tidy up this naming by moving the minimal work done in
cxl_trace_hpa() into cxl_dpa_to_hpa() and use cxl_dpa_to_hpa()
for trace event callbacks.
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Robert Richter <rrichter@amd.com>
Link: https://patch.msgid.link/452a9b0c525b774c72d9d5851515ffa928750132.1719980933.git.alison.schofield@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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Add compatible string for sama7d65. Like sam9x60 and sam9x7, it requires
to bind to "atmel,at91rm9200-spi".
Group these three under the same enum, sorted alphanumerically, and
remove previously added item.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240711165402.373634-1-nicolas.ferre@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Convert the Cirrus Logic CS42448/CS42888 audio CODEC bindings to DT
schema format. Set power supply properties to required only for CS42888.
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Animesh Agarwal <animeshagarwal28@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240710072756.99765-1-animeshagarwal28@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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What wq_update_pod() does is just to update the pwq of the specific
cpu. Rename it and update the comments.
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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The arguments @hotplug_cpu and @online are not used in wq_update_pod()
since the functions called by wq_update_pod() don't need them.
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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wq_calc_pod_cpumask() uses wq_online_cpumask, which excludes the cpu
going down, so the argument cpu_going_down is unused and can be removed.
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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The cpumask empty check in wq_calc_pod_cpumask() has long been useless.
It just works purely as documents which states that the cpumask is not
possible empty after the function returns.
Now the code above is even more explicit that the cpumask is not empty,
so the document-only empty check can be removed.
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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1726a1713590 ("workqueue: Put PWQ allocation and WQ enlistment in the same
lock C.S.") led to the following possible deadlock:
WARNING: possible recursive locking detected
6.10.0-rc5-00004-g1d4c6111406c #1 Not tainted
--------------------------------------------
swapper/0/1 is trying to acquire lock:
c27760f4 (cpu_hotplug_lock){++++}-{0:0}, at: alloc_workqueue (kernel/workqueue.c:5152 kernel/workqueue.c:5730)
but task is already holding lock:
c27760f4 (cpu_hotplug_lock){++++}-{0:0}, at: padata_alloc (kernel/padata.c:1007)
...
stack backtrace:
...
cpus_read_lock (include/linux/percpu-rwsem.h:53 kernel/cpu.c:488)
alloc_workqueue (kernel/workqueue.c:5152 kernel/workqueue.c:5730)
padata_alloc (kernel/padata.c:1007 (discriminator 1))
pcrypt_init_padata (crypto/pcrypt.c:327 (discriminator 1))
pcrypt_init (crypto/pcrypt.c:353)
do_one_initcall (init/main.c:1267)
do_initcalls (init/main.c:1328 (discriminator 1) init/main.c:1345 (discriminator 1))
kernel_init_freeable (init/main.c:1364)
kernel_init (init/main.c:1469)
ret_from_fork (arch/x86/kernel/process.c:153)
ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
entry_INT80_32 (arch/x86/entry/entry_32.S:944)
This is caused by pcrypt allocating a workqueue while holding
cpus_read_lock(), so workqueue code can't do it again as that can lead to
deadlocks if down_write starts after the first down_read.
The pwq creations and installations have been reworked based on
wq_online_cpumask rather than cpu_online_mask making cpus_read_lock() is
unneeded during wqattrs changes. Fix the deadlock by removing
cpus_read_lock() from apply_wqattrs_lock().
tj: Updated changelog.
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Fixes: 1726a1713590 ("workqueue: Put PWQ allocation and WQ enlistment in the same lock C.S.")
Link: http://lkml.kernel.org/r/202407081521.83b627c1-lkp@intel.com
Signed-off-by: Tejun Heo <tj@kernel.org>
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Avoid relying on cpu_online_mask for wqattrs changes so that
cpus_read_lock() can be removed from apply_wqattrs_lock().
And with wq_online_cpumask, attrs->__pod_cpumask doesn't need to be
reused as a temporary storage to calculate if the pod have any online
CPUs @attrs wants since @cpu_going_down is not in the wq_online_cpumask.
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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The new wq_online_mask mirrors the cpu_online_mask except during
hotplugging; specifically, it differs between the hotplugging stages
of workqueue_offline_cpu() and workqueue_online_cpu(), during which
the transitioning CPU is not represented in the mask.
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fix from Mikulas Patocka:
- Fix broken discard for device mapper VDO target
* tag 'for-6.10/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm vdo: replace max_discard_sectors with max_hw_discard_sectors
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This avoids reported warnings when the packages are not installed.
[namhyung]: Removed the dummy assignment and unnecessary ifeq checks.
Fixes: 0f0e1f445690 ("perf build: Use pkg-config for feature check for libtrace{event,fs}")
Signed-off-by: Guilherme Amadio <amadio@gentoo.org>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/20240628203432.3273625-1-amadio@gentoo.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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'ethtool-use-the-rss-context-xarray-in-ring-deactivation-safety-check'
Jakub Kicinski says:
====================
ethtool: use the rss context XArray in ring deactivation safety-check
Now that we have an XArray storing information about all extra
RSS contexts - use it to extend checks already performed using
ethtool_get_max_rxfh_channel().
====================
Link: https://patch.msgid.link/20240710174043.754664-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ethtool_get_max_rxfh_channel() gets called when user requests
deactivating Rx channels. Check the additional RSS contexts, too.
While we do track whether RSS context has an indirection
table explicitly set by the user, no driver looks at that bit.
Assume drivers won't auto-regenerate the additional tables,
to be safe.
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240710174043.754664-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 0d1b7d6c9274 ("bnxt: fix crashes when reducing ring count with
active RSS contexts") proves that allowing indirection table to contain
channels with out of bounds IDs may lead to crashes. Currently the
max channel check in the core gets skipped if driver can't fetch
the indirection table or when we can't allocate memory.
Both of those conditions should be extremely rare but if they do
happen we should try to be safe and fail the channel change.
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240710174043.754664-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When the PCI devres API was introduced to this driver, it was wrongly
assumed that initializing the device with pcim_enable_device() instead of
pci_enable_device() will make all PCI functions managed.
This is wrong and was caused by the quite confusing PCI devres API in which
some, but not all, functions become managed that way.
The function pci_iomap_range() is never managed.
Replace pci_iomap_range() with the managed function pcim_iomap_range().
Fixes: 8558de401b5f ("drm/vboxvideo: use managed pci functions")
Link: https://lore.kernel.org/r/20240613115032.29098-14-pstanner@redhat.com
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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The only managed mapping function currently is pcim_iomap() which doesn't
allow for mapping an area starting at a certain offset, which many drivers
want.
Add pcim_iomap_range() as an exported function.
Link: https://lore.kernel.org/r/20240613115032.29098-13-pstanner@redhat.com
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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