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On the Raspberry Pi 5, performance counters are not being cleared
when `v3d_perfmon_start()` is called, even though we write to the
CLR register. As a result, their values accumulate until they
overflow.
The expected behavior is for performance counters to reset to zero
at the start of a job. When the job finishes and the perfmon is
stopped, the counters should accurately reflect the values for that
specific job.
To ensure this behavior, the performance counters are now enabled
before being cleared. This allows the CLR register to function as
intended, zeroing the counter values when the job begins.
Fixes: 26a4dc29b74a ("drm/v3d: Expose performance counters to userspace")
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241204122831.17015-1-mcanal@igalia.com
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Pull NVMe fixess from Keith:
"nvme fixes for Linux 6.13
- Target fix using incorrect zero buffer (Nilay)
- Device specifc deallocate quirk fixes (Christoph, Keith)
- Fabrics fix for handling max command target bugs (Maurizio)
- Cocci fix usage for kzalloc (Yu-Chen)
- DMA size fix for host memory buffer feature (Christoph)
- Fabrics queue cleanup fixes (Chunguang)"
* tag 'nvme-6.13-2024-12-05' of git://git.infradead.org/nvme:
nvme-tcp: simplify nvme_tcp_teardown_io_queues()
nvme-tcp: no need to quiesce admin_q in nvme_tcp_teardown_io_queues()
nvme-rdma: unquiesce admin_q before destroy it
nvme-tcp: fix the memleak while create new ctrl failed
nvme-pci: don't use dma_alloc_noncontiguous with 0 merge boundary
nvmet: replace kmalloc + memset with kzalloc for data allocation
nvme-fabrics: handle zero MAXCMD without closing the connection
nvme-pci: remove two deallocate zeroes quirks
nvme: don't apply NVME_QUIRK_DEALLOCATE_ZEROES when DSM is not supported
nvmet: use kzalloc instead of ZERO_PAGE in nvme_execute_identify_ns_nvm()
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Commit 4ce6e2db00de ("virtio-blk: Ensure no requests in virtqueues before
deleting vqs.") replaces queue quiesce with queue freeze in virtio-blk's
PM callbacks. And the motivation is to drain inflight IOs before suspending.
block layer's queue freeze looks very handy, but it is also easy to cause
deadlock, such as, any attempt to call into bio_queue_enter() may run into
deadlock if the queue is frozen in current context. There are all kinds
of ->suspend() called in suspend context, so keeping queue frozen in the
whole suspend context isn't one good idea. And Marek reported lockdep
warning[1] caused by virtio-blk's freeze queue in virtblk_freeze().
[1] https://lore.kernel.org/linux-block/ca16370e-d646-4eee-b9cc-87277c89c43c@samsung.com/
Given the motivation is to drain in-flight IOs, it can be done by calling
freeze & unfreeze, meantime restore to previous behavior by keeping queue
quiesced during suspend.
Cc: Yi Sun <yi.sun@unisoc.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: virtualization@lists.linux.dev
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Link: https://lore.kernel.org/r/20241112125821.1475793-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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As per the guidelines, new drivers may not be set to default on.
An expert user can always select it.
Reported-by: Dan Williams <dan.j.williams@intel.com>
Cc: Will Deacon <will@kernel.org>
Cc: Steven Price <steven.price@arm.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Link: https://lore.kernel.org/r/6750c695194cd_2508129427@dwillia2-xfh.jf.intel.com.notmuch
Link: https://lore.kernel.org/r/20241205143634.306114-1-suzuki.poulose@arm.com
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Use reset_msg_rx_state() in drm_dp_mst_handle_up_req() instead of
open-coding it.
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-8-imre.deak@intel.com
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After an out-of-memory error the reception state should be reset, so
that the next attempt receiving a message doesn't fail (due to getting a
start-of-message packet, while the reception state has already the
start-of-message flag set).
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-7-imre.deak@intel.com
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While receiving an MST up request message from one thread in
drm_dp_mst_handle_up_req(), the MST topology could be removed from
another thread via drm_dp_mst_topology_mgr_set_mst(false), freeing
mst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL.
This could lead to a NULL deref/use-after-free of mst_primary in
drm_dp_mst_handle_up_req().
Avoid the above by holding a reference for mst_primary in
drm_dp_mst_handle_up_req() while it's used.
v2: Fix kfreeing the request if getting an mst_primary reference fails.
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241204132007.3132494-1-imre.deak@intel.com
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If receiving a reply for an MST down request message times out, the
thread receiving the reply in drm_dp_mst_handle_down_rep() could try to
dereference the drm_dp_sideband_msg_tx txmsg request message after the
thread waiting for the reply - calling drm_dp_mst_wait_tx_reply() - has
timed out and freed txmsg, hence leading to a use-after-free in
drm_dp_mst_handle_down_rep().
Prevent the above by holding the drm_dp_mst_topology_mgr::qlock in
drm_dp_mst_handle_down_rep() for the whole duration txmsg is looked up
from the request list and dereferenced.
v2: Fix unlocking mgr->qlock after verify_rx_request_type() fails.
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203174632.2941402-1-imre.deak@intel.com
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Simplify the error return path in drm_dp_mst_handle_down_rep(),
preparing for the next patch.
While at it use reset_msg_rx_state() instead of open-coding it.
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-4-imre.deak@intel.com
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After receiving the response for an MST down request message, the
response should be accepted/parsed only if the response type matches
that of the request. Ensure this by checking if the request type code
stored both in the request and the reply match, dropping the reply in
case of a mismatch.
This fixes the topology detection for an MST hub, as described in the
Closes link below, where the hub sends an incorrect reply message after
a CLEAR_PAYLOAD_TABLE -> LINK_ADDRESS down request message sequence.
Cc: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org>
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12804
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-3-imre.deak@intel.com
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If the MST topology is removed during the reception of an MST down reply
or MST up request sideband message, the
drm_dp_mst_topology_mgr::up_req_recv/down_rep_recv states could be reset
from one thread via drm_dp_mst_topology_mgr_set_mst(false), racing with
the reading/parsing of the message from another thread via
drm_dp_mst_handle_down_rep() or drm_dp_mst_handle_up_req(). The race is
possible since the reader/parser doesn't hold any lock while accessing
the reception state. This in turn can lead to a memory corruption in the
reader/parser as described by commit bd2fccac61b4 ("drm/dp_mst: Fix MST
sideband message body length check").
Fix the above by resetting the message reception state if needed before
reading/parsing a message. Another solution would be to hold the
drm_dp_mst_topology_mgr::lock for the whole duration of the message
reception/parsing in drm_dp_mst_handle_down_rep() and
drm_dp_mst_handle_up_req(), however this would require a bigger change.
Since the fix is also needed for stable, opting for the simpler solution
in this patch.
Cc: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org>
Fixes: 1d082618bbf3 ("drm/display/dp_mst: Fix down/up message handling after sink disconnect")
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13056
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-2-imre.deak@intel.com
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The devm_clk_get_optional_enabled() function returns error
pointers(PTR_ERR()). So use IS_ERR() to check it.
Verified on K3-J7200 EVM board, without clock node mentioned
in the device tree.
Signed-off-by: Purushothama Siddaiah <psiddaiah@mvista.com>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Link: https://patch.msgid.link/20241205070426.1861048-1-psiddaiah@mvista.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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HiSilicon HIP09A platforms using the same SMMU PMCG with HIP09
and thus suffers the same erratum. List them in the PMCG platform
information list without introducing a new SMMU PMCG Model.
Update the silicon-errata.rst as well.
Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Qinxin Xia <xiaqinxin@huawei.com>
Link: https://lore.kernel.org/r/20241205013331.1484017-1-xiaqinxin@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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The current requested response version(V1) for MANA_QUERY_GF_STAT query
results in STATISTICS_FLAGS_TX_ERRORS_GDMA_ERROR value being set to
0 always.
In order to get the correct value for this counter we request the response
version to be V2.
Cc: stable@vger.kernel.org
Fixes: e1df5202e879 ("net :mana :Add remaining GDMA stats for MANA to ethtool")
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://patch.msgid.link/1733291300-12593-1-git-send-email-shradhagupta@linux.microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2024-12-03 (ice, idpf, ixgbe, ixgbevf, igb)
This series contains updates to ice, idpf, ixgbe, ixgbevf, and igb
drivers.
For ice:
Arkadiusz corrects search for determining whether PHY clock recovery is
supported on the device.
Przemyslaw corrects mask used for PHY timestamps on ETH56G devices.
Wojciech adds missing virtchnl ops which caused NULL pointer
dereference.
Marcin fixes VLAN filter settings for uplink VSI in switchdev mode.
For idpf:
Josh restores setting of completion tag for empty buffers.
For ixgbevf:
Jake removes incorrect initialization/support of IPSEC for mailbox
version 1.5.
For ixgbe:
Jake rewords and downgrades misleading message when negotiation
of VF mailbox version is not supported.
Tore Amundsen corrects value for BASE-BX10 capability.
For igb:
Yuan Can adds proper teardown on failed pci_register_driver() call.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
igb: Fix potential invalid memory access in igb_init_module()
ixgbe: Correct BASE-BX10 compliance code
ixgbe: downgrade logging of unsupported VF API version to debug
ixgbevf: stop attempting IPSEC offload on Mailbox API 1.5
idpf: set completion tag for "empty" bufs associated with a packet
ice: Fix VLAN pruning in switchdev mode
ice: Fix NULL pointer dereference in switchdev
ice: fix PHY timestamp extraction for ETH56G
ice: fix PHY Clock Recovery availability check
====================
Link: https://patch.msgid.link/20241203215521.1646668-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Previously a workaround was added to avoid syndrome 0xcdb051. It is
triggered when offload a rule with tunnel encapsulation, and
forwarding to another table, but not matching on the internal port in
firmware steering mode. The original workaround skips internal tunnel
port logic, which is not correct as not all cases are considered. As
an example, if vlan is configured on the uplink port, traffic can't
pass because vlan header is not added with this workaround. Besides,
there is no such issue for software steering. So, this patch removes
that, and returns error directly if trying to offload such rule for
firmware steering.
Fixes: 06b4eac9c4be ("net/mlx5e: Don't offload internal port if filter device is out device")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Tested-by: Frode Nordahl <frode.nordahl@canonical.com>
Reviewed-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Ariel Levkovich <lariel@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-7-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In a multi-PF netdev, each traffic channel creates its own resources
against a specific PF.
In the cited commit, where this support was added, the channel_param
logic was mistakenly kept unchanged, so it always used the primary PF
which is found at priv->mdev.
In this patch we fix this by moving the logic to be per-channel, and
passing the correct mdev instance.
This bug happened to be usually harmless, as the resulting cparam
structures would be the same for all channels, due to identical FW logic
and decisions.
However, in some use cases, like fwreset, this gets broken.
This could lead to different symptoms. Example:
Error cqe on cqn 0x428, ci 0x0, qn 0x10a9, opcode 0xe, syndrome 0x4,
vendor syndrome 0x32
Fixes: e4f9686bdee7 ("net/mlx5e: Let channels be SD-aware")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-6-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fix the mentioned commit change for MPV mode, since in MPV mode the IB
device is shared between different core devices, so under this change
when moving both devices simultaneously to switchdev mode the IB device
removal and re-addition can race with itself causing unexpected behavior.
In such case do rescan_drivers() only once in order to add the ethernet
representor auxiliary device, and skip adding and removing IB devices.
Fixes: ab85ebf43723 ("net/mlx5: E-switch, refactor eswitch mode change")
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In case that IB device is already disabled when moving to switchdev mode,
which can happen when working with LAG, need to do rescan_drivers()
before leaving in order to add ethernet representor auxiliary device.
Fixes: ab85ebf43723 ("net/mlx5: E-switch, refactor eswitch mode change")
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The mentioned "Fixes" patch forgot to do that.
Fixes: 9addffa34359 ("net/mlx5: HWS, use lock classes for bwc locks")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It allocates a match template, which creates a compressed definer fc
struct, but that is not deallocated.
This commit fixes that.
Fixes: 74a778b4a63f ("net/mlx5: HWS, added definers handling")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 7ed816be35ab ("eth: bnxt: use page pool for head frags") added a
page pool for header frags, which may be distinct from the existing pool
for the aggregation ring. Prior to this change, frags used in the TPA
ring rx_tpa were allocated from system memory e.g. napi_alloc_frag()
meaning their lifetimes were not associated with a page pool. They can
be returned at any time and so the queue API did not alloc or free
rx_tpa.
But now frags come from a separate head_pool which may be different to
page_pool. Without allocating and freeing rx_tpa, frags allocated from
the old head_pool may be returned to a different new head_pool which
causes a mismatch between the pp hold/release count.
Fix this problem by properly freeing and allocating rx_tpa in the queue
API implementation.
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-4-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Refactor bnxt_alloc_rx_rings() to call bnxt_alloc_rx_agg_bmap() for
allocating rx_agg_bmap.
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-3-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Refactor bnxt_rx_ring_info->tpa_info operations into helpers that work
on a single tpa_info in prep for queue API using them.
There are 2 pairs of operations:
* bnxt_alloc_one_tpa_info()
* bnxt_free_one_tpa_info()
These alloc/free the tpa_info array itself.
* bnxt_alloc_one_tpa_info_data()
* bnxt_free_one_tpa_info_data()
These alloc/free the frags stored in tpa_info array.
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-2-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We should not assume mac header is set in output path.
Use skb_eth_hdr() instead of eth_hdr() to fix the issue.
sysbot reported the following :
WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 skb_mac_header include/linux/skbuff.h:3052 [inline]
WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 eth_hdr include/linux/if_ether.h:24 [inline]
WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 geneve_xmit_skb drivers/net/geneve.c:898 [inline]
WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 geneve_xmit+0x4c38/0x5730 drivers/net/geneve.c:1039
Modules linked in:
CPU: 0 UID: 0 PID: 11635 Comm: syz.4.1423 Not tainted 6.12.0-syzkaller-10296-gaaf20f870da0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:skb_mac_header include/linux/skbuff.h:3052 [inline]
RIP: 0010:eth_hdr include/linux/if_ether.h:24 [inline]
RIP: 0010:geneve_xmit_skb drivers/net/geneve.c:898 [inline]
RIP: 0010:geneve_xmit+0x4c38/0x5730 drivers/net/geneve.c:1039
Code: 21 c6 02 e9 35 d4 ff ff e8 a5 48 4c fb 90 0f 0b 90 e9 fd f5 ff ff e8 97 48 4c fb 90 0f 0b 90 e9 d8 f5 ff ff e8 89 48 4c fb 90 <0f> 0b 90 e9 41 e4 ff ff e8 7b 48 4c fb 90 0f 0b 90 e9 cd e7 ff ff
RSP: 0018:ffffc90003b2f870 EFLAGS: 00010283
RAX: 000000000000037a RBX: 000000000000ffff RCX: ffffc9000dc3d000
RDX: 0000000000080000 RSI: ffffffff86428417 RDI: 0000000000000003
RBP: ffffc90003b2f9f0 R08: 0000000000000003 R09: 000000000000ffff
R10: 000000000000ffff R11: 0000000000000002 R12: ffff88806603c000
R13: 0000000000000000 R14: ffff8880685b2780 R15: 0000000000000e23
FS: 00007fdc2deed6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30a1dff8 CR3: 0000000056b8c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__netdev_start_xmit include/linux/netdevice.h:5002 [inline]
netdev_start_xmit include/linux/netdevice.h:5011 [inline]
__dev_direct_xmit+0x58a/0x720 net/core/dev.c:4490
dev_direct_xmit include/linux/netdevice.h:3181 [inline]
packet_xmit+0x1e4/0x360 net/packet/af_packet.c:285
packet_snd net/packet/af_packet.c:3146 [inline]
packet_sendmsg+0x2700/0x5660 net/packet/af_packet.c:3178
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg net/socket.c:726 [inline]
__sys_sendto+0x488/0x4f0 net/socket.c:2197
__do_sys_sendto net/socket.c:2204 [inline]
__se_sys_sendto net/socket.c:2200 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Fixes: a025fb5f49ad ("geneve: Allow configuration of DF behaviour")
Reported-by: syzbot+3ec5271486d7cb2d242a@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/674f4b72.050a0220.17bd51.004a.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Link: https://patch.msgid.link/20241203182122.2725517-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The driver is currently using an ACL key block that is not supported by
Spectrum-4. This works because the driver is only using a single field
from this key block which is located in the same offset in the
equivalent Spectrum-4 key block.
The issue was discovered when the firmware started rejecting the use of
the unsupported key block. The change has been reverted to avoid
breaking users that only update their firmware.
Nonetheless, fix the issue by using the correct key block.
Fixes: 07ff135958dd ("mlxsw: Introduce flex key elements for Spectrum-4")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/35e72c97bdd3bc414fb8e4d747e5fb5d26c29658.1733237440.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Fix an issue detected by syzbot with KASAN:
BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/
core.c:416 [inline]
BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x20e8/0x24a0
drivers/acpi/nfit/core.c:459
The issue occurs in cmd_to_func when the call_pkg->nd_reserved2
array is accessed without verifying that call_pkg points to a buffer
that is appropriately sized as a struct nd_cmd_pkg. This can lead
to out-of-bounds access and undefined behavior if the buffer does not
have sufficient space.
To address this, a check was added in acpi_nfit_ctl() to ensure that
buf is not NULL and that buf_len is less than sizeof(*call_pkg)
before accessing it. This ensures safe access to the members of
call_pkg, including the nd_reserved2 array.
Reported-by: syzbot+7534f060ebda6b8b51b3@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=7534f060ebda6b8b51b3
Tested-by: syzbot+7534f060ebda6b8b51b3@syzkaller.appspotmail.com
Fixes: ebe9f6f19d80 ("acpi/nfit: Fix bus command validation")
Signed-off-by: Suraj Sonawane <surajsonawane0215@gmail.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://patch.msgid.link/20241118162609.29063-1-surajsonawane0215@gmail.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- asus-nb-wmi: Silence unknown event warning when charger is plugged in
- asus-wmi: Handle return code variations during thermal policy writing
graciously
- samsung-laptop: Correct module description
* tag 'platform-drivers-x86-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: asus-nb-wmi: Ignore unknown event 0xCF
platform/x86: asus-wmi: Ignore return value when writing thermal policy
platform/x86: samsung-laptop: Match MODULE_DESCRIPTION() to functionality
|
|
Since commit 771f712ba5b0 ("scsi: scsi_debug: Fix cmd duration
calculation"), ns_from_boot value is only evaluated in schedule_resp()
for polled requests.
However, ns_from_boot is also required for hrtimer support for when
ndelay is less than INCLUSIVE_TIMING_MAX_NS, so fix up the logic to
decide when to evaluate ns_from_boot.
Fixes: 771f712ba5b0 ("scsi: scsi_debug: Fix cmd duration calculation")
Signed-off-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20241202130045.2335194-1-john.g.garry@oracle.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
as an error
This partially reverts commit 812fe6420a6e ("scsi: storvsc: Handle
additional SRB status values").
HyperV does not support MAINTENANCE_IN resulting in FC passthrough
returning the SRB_STATUS_DATA_OVERRUN value. Now that
SRB_STATUS_DATA_OVERRUN is treated as an error, multipath ALUA paths go
into a faulty state as multipath ALUA submits RTPG commands via
MAINTENANCE_IN.
[ 3.215560] hv_storvsc 1d69d403-9692-4460-89f9-a8cbcc0f94f3:
tag#230 cmd 0xa3 status: scsi 0x0 srb 0x12 hv 0xc0000001
[ 3.215572] scsi 1:0:0:32: alua: rtpg failed, result 458752
Make MAINTENANCE_IN return success to avoid the error path as is
currently done with INQUIRY and MODE_SENSE.
Suggested-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Cathy Avery <cavery@redhat.com>
Link: https://lore.kernel.org/r/20241127181324.3318443-1-cavery@redhat.com
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
When the power mode change is successful but the power mode hasn't
actually changed, the post notification was missed. Similar to the
approach with hibernate/clock scale/hce enable, having pre/post
notifications in the same function will make it easier to maintain.
Additionally, supplement the description of power parameters for the
pwr_change_notify callback.
Fixes: 7eb584db73be ("ufs: refactor configuring power mode")
Cc: stable@vger.kernel.org #6.11.x
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20241122024943.30589-1-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
Fix a use-after-free bug in sg_release(), detected by syzbot with KASAN:
BUG: KASAN: slab-use-after-free in lock_release+0x151/0xa30
kernel/locking/lockdep.c:5838
__mutex_unlock_slowpath+0xe2/0x750 kernel/locking/mutex.c:912
sg_release+0x1f4/0x2e0 drivers/scsi/sg.c:407
In sg_release(), the function kref_put(&sfp->f_ref, sg_remove_sfp) is
called before releasing the open_rel_lock mutex. The kref_put() call may
decrement the reference count of sfp to zero, triggering its cleanup
through sg_remove_sfp(). This cleanup includes scheduling deferred work
via sg_remove_sfp_usercontext(), which ultimately frees sfp.
After kref_put(), sg_release() continues to unlock open_rel_lock and may
reference sfp or sdp. If sfp has already been freed, this results in a
slab-use-after-free error.
Move the kref_put(&sfp->f_ref, sg_remove_sfp) call after unlocking the
open_rel_lock mutex. This ensures:
- No references to sfp or sdp occur after the reference count is
decremented.
- Cleanup functions such as sg_remove_sfp() and
sg_remove_sfp_usercontext() can safely execute without impacting the
mutex handling in sg_release().
The fix has been tested and validated by syzbot. This patch closes the
bug reported at the following syzkaller link and ensures proper
sequencing of resource cleanup and mutex operations, eliminating the
risk of use-after-free errors in sg_release().
Reported-by: syzbot+7efb5850a17ba6ce098b@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=7efb5850a17ba6ce098b
Tested-by: syzbot+7efb5850a17ba6ce098b@syzkaller.appspotmail.com
Fixes: cc833acbee9d ("sg: O_EXCL and other lock handling")
Signed-off-by: Suraj Sonawane <surajsonawane0215@gmail.com>
Link: https://lore.kernel.org/r/20241120125944.88095-1-surajsonawane0215@gmail.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
Prevent a division by 0 when monitoring is not enabled.
Fixes: 1d8613a23f3c ("scsi: ufs: core: Introduce HBA performance monitor sysfs nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20241120062522.917157-1-gwendal@chromium.org
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20241115130313.46826-8-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
The fc_function_template for vports was missing the
.show_host_supported_speeds. The base port had the same.
Add .show_host_supported_speeds to the vport template as well.
Cc: stable@vger.kernel.org
Fixes: 2c3dfe3f6ad8 ("[SCSI] qla2xxx: add support for NPIV")
Signed-off-by: Anil Gurumurthy <agurumurthy@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20241115130313.46826-7-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
NVMe controller fails to send connect command due to failure to locate
hw context buffer for NVMe queue 0 (blk_mq_hw_ctx, hctx_idx=0). The
cause of the issue is NPIV host did not initialize the vha->irq_offset
field. This field is given to blk-mq (blk_mq_pci_map_queues) to help
locate the beginning of IO Queues which in turn help locate NVMe queue
0.
Initialize this field to allow NVMe to work properly with NPIV host.
kernel: nvme nvme5: Connect command failed, errno: -18
kernel: nvme nvme5: qid 0: secure concatenation is not supported
kernel: nvme nvme5: NVME-FC{5}: create_assoc failed, assoc_id 2e9100 ret 401
kernel: nvme nvme5: NVME-FC{5}: reset: Reconnect attempt failed (401)
kernel: nvme nvme5: NVME-FC{5}: Reconnect attempt in 2 seconds
Cc: stable@vger.kernel.org
Fixes: f0783d43dde4 ("scsi: qla2xxx: Use correct number of vectors for online CPUs")
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20241115130313.46826-6-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
Firmware supports multiple sg_cnt for request and response for CT
commands, so remove the redundant check. A check is there where sg_cnt
for request and response should be same. This is not required as driver
and FW have code to handle multiple and different sg_cnt on request and
response.
Cc: stable@vger.kernel.org
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20241115130313.46826-5-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
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As nvme_tcp_teardown_io_queues() is the only one caller of
nvme_tcp_destroy_admin_queue(), so we can merge it into
nvme_tcp_teardown_io_queues() to simplify the code.
Signed-off-by: Chunguang.xu <chunguang.xu@shopee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
|
|
As we quiesce admin_q in nvme_tcp_teardown_admin_queue(), so we should no
need to quiesce it in nvme_tcp_reaardown_io_queues(), make things simple.
Signed-off-by: Chunguang.xu <chunguang.xu@shopee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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|
Kernel will hang on destroy admin_q while we create ctrl failed, such
as following calltrace:
PID: 23644 TASK: ff2d52b40f439fc0 CPU: 2 COMMAND: "nvme"
#0 [ff61d23de260fb78] __schedule at ffffffff8323bc15
#1 [ff61d23de260fc08] schedule at ffffffff8323c014
#2 [ff61d23de260fc28] blk_mq_freeze_queue_wait at ffffffff82a3dba1
#3 [ff61d23de260fc78] blk_freeze_queue at ffffffff82a4113a
#4 [ff61d23de260fc90] blk_cleanup_queue at ffffffff82a33006
#5 [ff61d23de260fcb0] nvme_rdma_destroy_admin_queue at ffffffffc12686ce
#6 [ff61d23de260fcc8] nvme_rdma_setup_ctrl at ffffffffc1268ced
#7 [ff61d23de260fd28] nvme_rdma_create_ctrl at ffffffffc126919b
#8 [ff61d23de260fd68] nvmf_dev_write at ffffffffc024f362
#9 [ff61d23de260fe38] vfs_write at ffffffff827d5f25
RIP: 00007fda7891d574 RSP: 00007ffe2ef06958 RFLAGS: 00000202
RAX: ffffffffffffffda RBX: 000055e8122a4d90 RCX: 00007fda7891d574
RDX: 000000000000012b RSI: 000055e8122a4d90 RDI: 0000000000000004
RBP: 00007ffe2ef079c0 R8: 000000000000012b R9: 000055e8122a4d90
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
R13: 000055e8122923c0 R14: 000000000000012b R15: 00007fda78a54500
ORIG_RAX: 0000000000000001 CS: 0033 SS: 002b
This due to we have quiesced admi_q before cancel requests, but forgot
to unquiesce before destroy it, as a result we fail to drain the
pending requests, and hang on blk_mq_freeze_queue_wait() forever. Here
try to reuse nvme_rdma_teardown_admin_queue() to fix this issue and
simplify the code.
Fixes: 958dc1d32c80 ("nvme-rdma: add clean action for failed reconnection")
Reported-by: Yingfu.zhou <yingfu.zhou@shopee.com>
Signed-off-by: Chunguang.xu <chunguang.xu@shopee.com>
Signed-off-by: Yue.zhao <yue.zhao@shopee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
|
|
Now while we create new ctrl failed, we have not free the
tagset occupied by admin_q, here try to fix it.
Fixes: fd1418de10b9 ("nvme-tcp: avoid open-coding nvme_tcp_teardown_admin_queue()")
Signed-off-by: Chunguang.xu <chunguang.xu@shopee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
|
|
System crash is observed with stack trace warning of use after
free. There are 2 signals to tell dpc_thread to terminate (UNLOADING
flag and kthread_stop).
On setting the UNLOADING flag when dpc_thread happens to run at the time
and sees the flag, this causes dpc_thread to exit and clean up
itself. When kthread_stop is called for final cleanup, this causes use
after free.
Remove UNLOADING signal to terminate dpc_thread. Use the kthread_stop
as the main signal to exit dpc_thread.
[596663.812935] kernel BUG at mm/slub.c:294!
[596663.812950] invalid opcode: 0000 [#1] SMP PTI
[596663.812957] CPU: 13 PID: 1475935 Comm: rmmod Kdump: loaded Tainted: G IOE --------- - - 4.18.0-240.el8.x86_64 #1
[596663.812960] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 08/20/2012
[596663.812974] RIP: 0010:__slab_free+0x17d/0x360
...
[596663.813008] Call Trace:
[596663.813022] ? __dentry_kill+0x121/0x170
[596663.813030] ? _cond_resched+0x15/0x30
[596663.813034] ? _cond_resched+0x15/0x30
[596663.813039] ? wait_for_completion+0x35/0x190
[596663.813048] ? try_to_wake_up+0x63/0x540
[596663.813055] free_task+0x5a/0x60
[596663.813061] kthread_stop+0xf3/0x100
[596663.813103] qla2x00_remove_one+0x284/0x440 [qla2xxx]
Cc: stable@vger.kernel.org
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20241115130313.46826-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
Current abort of bsg on timeout prematurely clears the
outstanding_cmds[]. Abort does not allow FW to return the IOCB/SRB. In
addition, bsg_job_done() is not called to return the BSG (i.e. leak).
Abort the outstanding bsg/SRB and wait for the completion. The
completion IOCB will wake up the bsg_timeout thread. If abort is not
successful, then driver will forcibly call bsg_job_done() and free the
srb.
Err Inject:
- qaucli -z
- assign CT Passthru IOCB's NportHandle with another initiator
nport handle to trigger timeout. Remote port will drop CT request.
- bsg_job_done is properly called as part of cleanup
kernel: qla2xxx [0000:21:00.1]-7012:7: qla2x00_process_ct : 286 : Error Inject.
kernel: qla2xxx [0000:21:00.1]-7016:7: bsg rqst type: FC_BSG_HST_CT else type: 101 - loop-id=1 portid=fffffa.
kernel: qla2xxx [0000:21:00.1]-70bb:7: qla24xx_bsg_timeout CMD timeout. bsg ptr ffff9971a42f0838 msgcode 80000004 vendor cmd fa010000
kernel: qla2xxx [0000:21:00.1]-507c:7: Abort command issued - hdl=4b, type=5
kernel: qla2xxx [0000:21:00.1]-5040:7: ELS-CT pass-through-ct pass-through error hdl=4b comp_status-status=0x5 error subcode 1=0x0 error subcode 2=0xaf882e80.
kernel: qla2xxx [0000:21:00.1]-7009:7: qla2x00_bsg_job_done: sp hdl 4b, result=70000 bsg ptr ffff9971a42f0838
kernel: qla2xxx [0000:21:00.1]-802c:7: Aborting bsg ffff9971a42f0838 sp=ffff99760b87ba80 handle=4b rval=0
kernel: qla2xxx [0000:21:00.1]-708a:7: bsg abort success. bsg ffff9971a42f0838 sp=ffff99760b87ba80 handle=0x4b
kernel: qla2xxx [0000:21:00.1]-7012:7: qla2x00_process_ct : 286 : Error Inject.
kernel: qla2xxx [0000:21:00.1]-7016:7: bsg rqst type: FC_BSG_HST_CT else type: 101 - loop-id=1 portid=fffffa.
kernel: qla2xxx [0000:21:00.1]-70bb:7: qla24xx_bsg_timeout CMD timeout. bsg ptr ffff9971a42f43b8 msgcode 80000004 vendor cmd fa010000
kernel: qla2xxx [0000:21:00.1]-7012:7: qla_bsg_found : 2206 : Error Inject 2.
kernel: qla2xxx [0000:21:00.1]-802c:7: Aborting bsg ffff9971a42f43b8 sp=ffff99762c304440 handle=5e rval=5
kernel: qla2xxx [0000:21:00.1]-704f:7: bsg abort fail. bsg=ffff9971a42f43b8 sp=ffff99762c304440 rval=5.
kernel: qla2xxx [0000:21:00.1]-7051:7: qla_bsg_found bsg_job_done : bsg ffff9971a42f43b8 result 0xfffffffa sp ffff99762c304440.
Cc: stable@vger.kernel.org
Fixes: c449b4198701 ("scsi: qla2xxx: Use QP lock to search for bsg")
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20241115130313.46826-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
Only call into nvme_alloc_host_mem_single which uses
dma_alloc_noncontiguous when there is non-null dma merge boundary.
Without this we'll call into dma_alloc_noncontiguous for device using
dma-direct, which can work fine as long as the preferred size is below the
MAX_ORDER of the page allocator, but blows up with a warning if it is
too large.
Fixes: 63a5c7a4b4c4 ("nvme-pci: use dma_alloc_noncontigous if possible")
Reported-by: Leon Romanovsky <leon@kernel.org>
Reported-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Leon Romanovsky <leon@kernel.org>
Tested-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
|
|
Update driver version to 8.12.0.3.50.
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20241110194405.10108-6-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
Before retrying initialization, check and abort if the fault code
indicates insufficient power. Also mark the controller as unrecoverable
instead of issuing reset in the watch dog timer if the fault code
indicates insufficient power.
Signed-off-by: Prayas Patel <prayas.patel@broadcom.com>
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20241110194405.10108-5-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
Instead of displaying the controller index starting from '1' make the
driver display the controller index starting from '0'.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20241110194405.10108-4-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
The driver, through the SAS transport, exposes a sysfs interface to
enable/disable PHYs in a controller/expander setup. When multiple PHYs
are disabled and enabled in rapid succession, the persistent and current
config pages related to SAS IO unit/SAS Expander pages could get
corrupted.
Use separate memory for each config request.
Signed-off-by: Prayas Patel <prayas.patel@broadcom.com>
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20241110194405.10108-3-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
The driver serializes ioctls through a mutex lock but access to the
ioctl data buffer is not guarded by the mutex. This results in multiple
user threads being able to write to the driver's ioctl buffer
simultaneously.
Protect the ioctl buffer with the ioctl mutex.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20241110194405.10108-2-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
|
|
cocci warnings: (new ones prefixed by >>)
>> drivers/nvme/target/pr.c:831:8-15: WARNING: kzalloc should be used for data, instead of kmalloc/memset
The pattern of using 'kmalloc' followed by 'memset' is replaced with
'kzalloc', which is functionally equivalent to 'kmalloc' + 'memset',
but more efficient. 'kzalloc' automatically zeroes the allocated
memory, making it a faster and more streamlined solution.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202411301434.LEckbcWx-lkp@intel.com/
Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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