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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
"Mainly individually changelogged singleton patches. The patch series
in this pull are:
- "lib min_heap: Improve min_heap safety, testing, and documentation"
from Kuan-Wei Chiu provides various tightenings to the min_heap
library code
- "xarray: extract __xa_cmpxchg_raw" from Tamir Duberstein preforms
some cleanup and Rust preparation in the xarray library code
- "Update reference to include/asm-<arch>" from Geert Uytterhoeven
fixes pathnames in some code comments
- "Converge on using secs_to_jiffies()" from Easwar Hariharan uses
the new secs_to_jiffies() in various places where that is
appropriate
- "ocfs2, dlmfs: convert to the new mount API" from Eric Sandeen
switches two filesystems to the new mount API
- "Convert ocfs2 to use folios" from Matthew Wilcox does that
- "Remove get_task_comm() and print task comm directly" from Yafang
Shao removes now-unneeded calls to get_task_comm() in various
places
- "squashfs: reduce memory usage and update docs" from Phillip
Lougher implements some memory savings in squashfs and performs
some maintainability work
- "lib: clarify comparison function requirements" from Kuan-Wei Chiu
tightens the sort code's behaviour and adds some maintenance work
- "nilfs2: protect busy buffer heads from being force-cleared" from
Ryusuke Konishi fixes an issues in nlifs when the fs is presented
with a corrupted image
- "nilfs2: fix kernel-doc comments for function return values" from
Ryusuke Konishi fixes some nilfs kerneldoc
- "nilfs2: fix issues with rename operations" from Ryusuke Konishi
addresses some nilfs BUG_ONs which syzbot was able to trigger
- "minmax.h: Cleanups and minor optimisations" from David Laight does
some maintenance work on the min/max library code
- "Fixes and cleanups to xarray" from Kemeng Shi does maintenance
work on the xarray library code"
* tag 'mm-nonmm-stable-2025-01-24-23-16' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (131 commits)
ocfs2: use str_yes_no() and str_no_yes() helper functions
include/linux/lz4.h: add some missing macros
Xarray: use xa_mark_t in xas_squash_marks() to keep code consistent
Xarray: remove repeat check in xas_squash_marks()
Xarray: distinguish large entries correctly in xas_split_alloc()
Xarray: move forward index correctly in xas_pause()
Xarray: do not return sibling entries from xas_find_marked()
ipc/util.c: complete the kernel-doc function descriptions
gcov: clang: use correct function param names
latencytop: use correct kernel-doc format for func params
minmax.h: remove some #defines that are only expanded once
minmax.h: simplify the variants of clamp()
minmax.h: move all the clamp() definitions after the min/max() ones
minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp()
minmax.h: reduce the #define expansion of min(), max() and clamp()
minmax.h: update some comments
minmax.h: add whitespace around operators and after commas
nilfs2: do not update mtime of renamed directory that is not moved
nilfs2: handle errors that nilfs_prepare_chunk() may return
CREDITS: fix spelling mistake
...
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, lpfc, fnic, qla2xx, mpi3mr).
The major core change is the renaming of the slave_ methods plus a bit
of constification. The rest are minor updates and fixes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (103 commits)
scsi: fnic: Propagate SCSI error code from fnic_scsi_drv_init()
scsi: fnic: Test for memory allocation failure and return error code
scsi: fnic: Return appropriate error code from failure of scsi drv init
scsi: fnic: Return appropriate error code for mem alloc failure
scsi: fnic: Remove always-true IS_FNIC_FCP_INITIATOR macro
scsi: fnic: Fix use of uninitialized value in debug message
scsi: fnic: Delete incorrect debugfs error handling
scsi: fnic: Remove unnecessary else to fix warning in FDLS FIP
scsi: fnic: Remove extern definition from .c files
scsi: fnic: Remove unnecessary else and unnecessary break in FDLS
scsi: mpi3mr: Fix possible crash when setting up bsg fails
scsi: ufs: bsg: Set bsg_queue to NULL after removal
scsi: ufs: bsg: Delete bsg_dev when setting up bsg fails
scsi: st: Don't set pos_unknown just after device recognition
scsi: aic7xxx: Fix build 'aicasm' warning
scsi: Revert "scsi: ufs: core: Probe for EXT_IID support"
scsi: storvsc: Ratelimit warning logs to prevent VM denial of service
scsi: scsi_debug: Constify sdebug_driver_template
scsi: documentation: Corrections for struct updates
scsi: driver-api: documentation: Change what is added to docbook
...
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Pull rdma updates from Jason Gunthorpe:
"Lighter that normal, but the now usual collection of driver fixes and
small improvements:
- Small fixes and minor improvements to cxgb4, bnxt_re, rxe, srp,
efa, cxgb4
- Update mlx4 to use the new umem APIs, avoiding direct use of
scatterlist
- Support ROCEv2 in erdma
- Remove various uncalled functions, constify bin_attribute
- Provide core infrastructure to catch netdev events and route them
to drivers, consolidating duplicated driver code
- Fix rare race condition crashes in mlx5 ODP flows"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (63 commits)
RDMA/mlx5: Fix implicit ODP use after free
RDMA/mlx5: Fix a race for an ODP MR which leads to CQE with error
RDMA/qib: Constify 'struct bin_attribute'
RDMA/hfi1: Constify 'struct bin_attribute'
RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]"
RDMA/cxgb4: Notify rdma stack for IB_EVENT_QP_LAST_WQE_REACHED event
RDMA/bnxt_re: Allocate dev_attr information dynamically
RDMA/bnxt_re: Pass the context for ulp_irq_stop
RDMA/bnxt_re: Add support to handle DCB_CONFIG_CHANGE event
RDMA/bnxt_re: Query firmware defaults of CC params during probe
RDMA/bnxt_re: Add Async event handling support
bnxt_en: Add ULP call to notify async events
RDMA/mlx5: Fix indirect mkey ODP page count
MAINTAINERS: Update the bnxt_re maintainers
RDMA/hns: Clean up the legacy CONFIG_INFINIBAND_HNS
RDMA/rtrs: Add missing deinit() call
RDMA/efa: Align interrupt related fields to same type
RDMA/bnxt_re: Fix to drop reference to the mmap entry in case of error
RDMA/mlx5: Fix link status down event for MPV
RDMA/erdma: Support create_ah/destroy_ah in non-sleepable contexts
...
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Prevent double queueing of implicit ODP mr destroy work by using
__xa_cmpxchg() to make sure this is the only time we are destroying this
specific mr.
Without this change, we could try to invalidate this mr twice, which in
turn could result in queuing a MR work destroy twice, and eventually the
second work could execute after the MR was freed due to the first work,
causing a user after free and trace below.
refcount_t: underflow; use-after-free.
WARNING: CPU: 2 PID: 12178 at lib/refcount.c:28 refcount_warn_saturate+0x12b/0x130
Modules linked in: bonding ib_ipoib vfio_pci ip_gre geneve nf_tables ip6_gre gre ip6_tunnel tunnel6 ipip tunnel4 ib_umad rdma_ucm mlx5_vfio_pci vfio_pci_core vfio_iommu_type1 mlx5_ib vfio ib_uverbs mlx5_core iptable_raw openvswitch nsh rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay zram zsmalloc fuse [last unloaded: ib_uverbs]
CPU: 2 PID: 12178 Comm: kworker/u20:5 Not tainted 6.5.0-rc1_net_next_mlx5_58c644e #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
Workqueue: events_unbound free_implicit_child_mr_work [mlx5_ib]
RIP: 0010:refcount_warn_saturate+0x12b/0x130
Code: 48 c7 c7 38 95 2a 82 c6 05 bc c6 fe 00 01 e8 0c 66 aa ff 0f 0b 5b c3 48 c7 c7 e0 94 2a 82 c6 05 a7 c6 fe 00 01 e8 f5 65 aa ff <0f> 0b 5b c3 90 8b 07 3d 00 00 00 c0 74 12 83 f8 01 74 13 8d 50 ff
RSP: 0018:ffff8881008e3e40 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000027
RDX: ffff88852c91b5c8 RSI: 0000000000000001 RDI: ffff88852c91b5c0
RBP: ffff8881dacd4e00 R08: 00000000ffffffff R09: 0000000000000019
R10: 000000000000072e R11: 0000000063666572 R12: ffff88812bfd9e00
R13: ffff8881c792d200 R14: ffff88810011c005 R15: ffff8881002099c0
FS: 0000000000000000(0000) GS:ffff88852c900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5694b5e000 CR3: 00000001153f6003 CR4: 0000000000370ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? refcount_warn_saturate+0x12b/0x130
free_implicit_child_mr_work+0x180/0x1b0 [mlx5_ib]
process_one_work+0x1cc/0x3c0
worker_thread+0x218/0x3c0
kthread+0xc6/0xf0
ret_from_fork+0x1f/0x30
</TASK>
Fixes: 5256edcb98a1 ("RDMA/mlx5: Rework implicit ODP destroy")
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/r/c96b8645a81085abff739e6b06e286a350d1283d.1737274283.git.leon@kernel.org
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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This patch addresses a race condition for an ODP MR that can result in a
CQE with an error on the UMR QP.
During the __mlx5_ib_dereg_mr() flow, the following sequence of calls
occurs:
mlx5_revoke_mr()
mlx5r_umr_revoke_mr()
mlx5r_umr_post_send_wait()
At this point, the lkey is freed from the hardware's perspective.
However, concurrently, mlx5_ib_invalidate_range() might be triggered by
another task attempting to invalidate a range for the same freed lkey.
This task will:
- Acquire the umem_odp->umem_mutex lock.
- Call mlx5r_umr_update_xlt() on the UMR QP.
- Since the lkey has already been freed, this can lead to a CQE error,
causing the UMR QP to enter an error state [1].
To resolve this race condition, the umem_odp->umem_mutex lock is now also
acquired as part of the mlx5_revoke_mr() scope. Upon successful revoke,
we set umem_odp->private which points to that MR to NULL, preventing any
further invalidation attempts on its lkey.
[1] From dmesg:
infiniband rocep8s0f0: dump_cqe:277:(pid 0): WC error: 6, Message: memory bind operation error
cqe_dump: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
cqe_dump: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
cqe_dump: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
cqe_dump: 00000030: 00 00 00 00 08 00 78 06 25 00 11 b9 00 0e dd d2
WARNING: CPU: 15 PID: 1506 at drivers/infiniband/hw/mlx5/umr.c:394 mlx5r_umr_post_send_wait+0x15a/0x2b0 [mlx5_ib]
Modules linked in: ip6table_mangle ip6table_natip6table_filter ip6_tables iptable_mangle xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_umad ib_ipoib ib_cm mlx5_ib ib_uverbs ib_core fuse mlx5_core
CPU: 15 UID: 0 PID: 1506 Comm: ibv_rc_pingpong Not tainted 6.12.0-rc7+ #1626
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:mlx5r_umr_post_send_wait+0x15a/0x2b0 [mlx5_ib]
[..]
Call Trace:
<TASK>
mlx5r_umr_update_xlt+0x23c/0x3e0 [mlx5_ib]
mlx5_ib_invalidate_range+0x2e1/0x330 [mlx5_ib]
__mmu_notifier_invalidate_range_start+0x1e1/0x240
zap_page_range_single+0xf1/0x1a0
madvise_vma_behavior+0x677/0x6e0
do_madvise+0x1a2/0x4b0
__x64_sys_madvise+0x25/0x30
do_syscall_64+0x6b/0x140
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Fixes: e6fb246ccafb ("RDMA/mlx5: Consolidate MR destruction to mlx5_ib_dereg_mr()")
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/r/68a1e007c25b2b8fe5d625f238cc3b63e5341f77.1737290229.git.leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Artemy Kovalyov <artemyko@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20250114-sysfs-const-bin_attr-infiniband-v1-2-397aaa94d453@weissschuh.net
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20250114-sysfs-const-bin_attr-infiniband-v1-1-397aaa94d453@weissschuh.net
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The Call Trace is as below:
"
<TASK>
? show_regs.cold+0x1a/0x1f
? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
? __warn+0x84/0xd0
? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
? report_bug+0x105/0x180
? handle_bug+0x46/0x80
? exc_invalid_op+0x19/0x70
? asm_exc_invalid_op+0x1b/0x20
? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
? __rxe_cleanup+0x124/0x170 [rdma_rxe]
rxe_destroy_qp.cold+0x24/0x29 [rdma_rxe]
ib_destroy_qp_user+0x118/0x190 [ib_core]
rdma_destroy_qp.cold+0x43/0x5e [rdma_cm]
rtrs_cq_qp_destroy.cold+0x1d/0x2b [rtrs_core]
rtrs_srv_close_work.cold+0x1b/0x31 [rtrs_server]
process_one_work+0x21d/0x3f0
worker_thread+0x4a/0x3c0
? process_one_work+0x3f0/0x3f0
kthread+0xf0/0x120
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x22/0x30
</TASK>
"
When too many rdma resources are allocated, rxe needs more time to
handle these rdma resources. Sometimes with the current timeout, rxe
can not release the rdma resources correctly.
Compared with other rdma drivers, a bigger timeout is used.
Fixes: 215d0a755e1b ("RDMA/rxe: Stop lookup of partially built objects")
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://patch.msgid.link/20250110160927.55014-1-yanjun.zhu@linux.dev
Tested-by: Joe Klein <joe.klein812@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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This patch sends IB_EVENT_QP_LAST_WQE_REACHED event on a QP that is in
error state and associated with an SRQ. This behaviour is incorporated
in flush_qp() which is called when QP transitions to error state.
Supports SRQ drain functionality added by commit 844bc12e6da3 ("IB/core:
add support for draining Shared receive queues")
Fixes: 844bc12e6da3 ("IB/core: add support for draining Shared receive queues")
Signed-off-by: Anumula Murali Mohan Reddy <anumula@chelsio.com>
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Link: https://patch.msgid.link/20250107095053.81007-1-anumula@chelsio.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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In order to optimize the size of driver private structure,
the memory for dev_attr is allocated dynamically during the
chip context initialization. In order to make certain runtime
decisions, store dev_attr in the qplib_res structure.
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1736446693-6692-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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ulp_irq_stop() can be invoked from a context where FW is healthy or
when FW is in a reset state. In the latter case, ULP must stop all
interactions with HW/FW and also with application and stack. Added a
new parameter to the ulp_irq_stop() function to achieve that.
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1736446693-6692-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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QP1 context in HW needs to be updated when there is a
change in the default DSCP values used for RoCE traffic.
Handle the event from FW and modify the dscp value used
by QP1.
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20250107024553.2926983-5-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Added function to query firmware default values of CC parameters
during driver init. These values will be stored in driver local
structure and used in subsequent patch.
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20250107024553.2926983-4-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Using the option provided by Ethernet driver, register for FW Async
event. During probe, while registeriung with Ethernet driver, provide
the ulp hook 'ulp_async_notifier' for receiving the firmware events.
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20250107024553.2926983-3-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Restrict the check for the number of pages handled during an ODP page
fault to direct mkeys.
Perform the check right after handling the page fault and don't
propagate the number of handled pages to callers.
Indirect mkeys and their associated direct mkeys can have different
start addresses. As a result, the calculation of the number of pages to
handle for an indirect mkey may not match the actual page fault
handling done on the direct mkey.
For example:
A 4K sized page fault on a KSM mkey that has a start address that is not
aligned to a page will result a calculation that assumes the number of
pages required to handle are 2.
While the underlying MTT might be aligned will require fetching only a
single page.
Thus, do the calculation and compare number of pages handled only per
direct mkey.
Fixes: db570d7deafb ("IB/mlx5: Add ODP support to MW")
Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Reviewed-by: Artemy Kovalyov <artemyko@nvidia.com>
Link: https://patch.msgid.link/86c483d9e75ce8fe14e9ff85b62df72b779f8ab1.1736187990.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Correct the spelling dictionary so that future instances will be caught by
checkpatch, and fix the instances found.
Link: https://lkml.kernel.org/r/20241211154903.47027-1-cvam0000@gmail.com
Signed-off-by: Shivam Chaudhary <cvam0000@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Naveen N Rao <naveen@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Shivam Chaudhary <cvam0000@gmail.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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hns driver used to support hip06 and hip08 devices with
CONFIG_INFINIBAND_HNS_HIP06 and CONFIG_INFINIBAND_HNS_HIP08
respectively, which both depended on CONFIG_INFINIBAND_HNS.
But we no longer provide support for hip06 and only support
hip08 and higher since the commit in fixes line, so there is
no need to have CONFIG_INFINIBAND_HNS any more. Remove it and
only keep CONFIG_INFINIBAND_HNS_HIP08.
Fixes: 38d220882426 ("RDMA/hns: Remove support for HIP06")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://patch.msgid.link/20250106111211.3945051-1-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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A warning is triggered when repeatedly connecting and disconnecting the
rnbd:
list_add corruption. prev->next should be next (ffff88800b13e480), but was ffff88801ecd1338. (prev=ffff88801ecd1340).
WARNING: CPU: 1 PID: 36562 at lib/list_debug.c:32 __list_add_valid_or_report+0x7f/0xa0
Workqueue: ib_cm cm_work_handler [ib_cm]
RIP: 0010:__list_add_valid_or_report+0x7f/0xa0
? __list_add_valid_or_report+0x7f/0xa0
ib_register_event_handler+0x65/0x93 [ib_core]
rtrs_srv_ib_dev_init+0x29/0x30 [rtrs_server]
rtrs_ib_dev_find_or_add+0x124/0x1d0 [rtrs_core]
__alloc_path+0x46c/0x680 [rtrs_server]
? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server]
? rcu_is_watching+0xd/0x40
? __mutex_lock+0x312/0xcf0
? get_or_create_srv+0xad/0x310 [rtrs_server]
? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server]
rtrs_rdma_connect+0x23c/0x2d0 [rtrs_server]
? __lock_release+0x1b1/0x2d0
cma_cm_event_handler+0x4a/0x1a0 [rdma_cm]
cma_ib_req_handler+0x3a0/0x7e0 [rdma_cm]
cm_process_work+0x28/0x1a0 [ib_cm]
? _raw_spin_unlock_irq+0x2f/0x50
cm_req_handler+0x618/0xa60 [ib_cm]
cm_work_handler+0x71/0x520 [ib_cm]
Commit 667db86bcbe8 ("RDMA/rtrs: Register ib event handler") introduced a
new element .deinit but never used it at all. Fix it by invoking the
`deinit()` to appropriately unregister the IB event handler.
Cc: Jinpu Wang <jinpu.wang@ionos.com>
Fixes: 667db86bcbe8 ("RDMA/rtrs: Register ib event handler")
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Link: https://patch.msgid.link/20250106004516.16611-1-lizhijian@fujitsu.com
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
There is a lot of implicit casting of interrupt related fields. Use
u32 as common type since this is what the device use as type for max
supported EQs and what IB core expects in num_comp_vectors field.
Reviewed-by: Daniel Kranzdorf <dkkranzd@amazon.com>
Reviewed-by: Michael Margolin <mrgolin@amazon.com>
Signed-off-by: Yonatan Nachum <ynachum@amazon.com>
Link: https://patch.msgid.link/20250105131421.29030-1-ynachum@amazon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
In the error handling path of bnxt_re_mmap(), driver should invoke
rdma_user_mmap_entry_put() to free the reference of mmap entry in case
the error happens after rdma_user_mmap_entry_get was called.
Fixes: ea2224857882 ("RDMA/bnxt_re: Update alloc_page uapi for pacing")
Reviewed-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Reviewed-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20250104061519.2540178-1-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Cross-merge networking fixes after downstream PR (net-6.13-rc6).
No conflicts.
Adjacent changes:
include/linux/if_vlan.h
f91a5b808938 ("af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK")
3f330db30638 ("net: reformat kdoc return statements")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Pull rdma fixes from Jason Gunthorpe:
"A lot of fixes accumulated over the holiday break:
- Static tool fixes, value is already proven to be NULL, possible
integer overflow
- Many bnxt_re fixes:
- Crashes due to a mismatch in the maximum SGE list size
- Don't waste memory for user QPs by creating kernel-only
structures
- Fix compatability issues with older HW in some of the new HW
features recently introduced: RTS->RTS feature, work around 9096
- Do not allow destroy_qp to fail
- Validate QP MTU against device limits
- Add missing validation on madatory QP attributes for RTR->RTS
- Report port_num in query_qp as required by the spec
- Fix creation of QPs of the maximum queue size, and in the
variable mode
- Allow all QPs to be used on newer HW by limiting a work around
only to HW it affects
- Use the correct MSN table size for variable mode QPs
- Add missing locking in create_qp() accessing the qp_tbl
- Form WQE buffers correctly when some of the buffers are 0 hop
- Don't crash on QP destroy if the userspace doesn't setup the
dip_ctx
- Add the missing QP flush handler call on the DWQE path to avoid
hanging on error recovery
- Consistently use ENXIO for return codes if the devices is
fatally errored
- Try again to fix VLAN support on iwarp, previous fix was reverted
due to breaking other cards
- Correct error path return code for rdma netlink events
- Remove the seperate net_device pointer in siw and rxe which
syzkaller found a way to UAF
- Fix a UAF of a stack ib_sge in rtrs
- Fix a regression where old mlx5 devices and FW were wrongly
activing new device features and failing"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (28 commits)
RDMA/mlx5: Enable multiplane mode only when it is supported
RDMA/bnxt_re: Fix error recovery sequence
RDMA/rtrs: Ensure 'ib_sge list' is accessible
RDMA/rxe: Remove the direct link to net_device
RDMA/hns: Fix missing flush CQE for DWQE
RDMA/hns: Fix warning storm caused by invalid input in IO path
RDMA/hns: Fix accessing invalid dip_ctx during destroying QP
RDMA/hns: Fix mapping error of zero-hop WQE buffer
RDMA/bnxt_re: Fix the locking while accessing the QP table
RDMA/bnxt_re: Fix MSN table size for variable wqe mode
RDMA/bnxt_re: Add send queue size check for variable wqe
RDMA/bnxt_re: Disable use of reserved wqes
RDMA/bnxt_re: Fix max_qp_wrs reported
RDMA/siw: Remove direct link to net_device
RDMA/nldev: Set error code in rdma_nl_notify_event
RDMA/bnxt_re: Fix reporting hw_ver in query_device
RDMA/bnxt_re: Fix to export port num to ib_query_qp
RDMA/bnxt_re: Fix setting mandatory attributes for modify_qp
RDMA/bnxt_re: Add check for path mtu in modify_qp
RDMA/bnxt_re: Fix the check for 9060 condition
...
|
|
Driver queries vport_cxt.num_plane and enables multiplane when it is
greater then 0, but some old FWs (versions from x.40.1000 till x.42.1000),
report vport_cxt.num_plane = 1 unexpectedly.
Fix it by querying num_plane only when HCA_CAP2.multiplane bit is set.
Fixes: 2a5db20fa532 ("RDMA/mlx5: Add support to multi-plane device and port")
Link: https://patch.msgid.link/r/1ef901acdf564716fcf550453cf5e94f343777ec.1734610916.git.leon@kernel.org
Cc: stable@vger.kernel.org
Reported-by: Francesco Poli <invernomuto@paranoici.org>
Closes: https://lore.kernel.org/all/nvs4i2v7o6vn6zhmtq4sgazy2hu5kiulukxcntdelggmznnl7h@so3oul6uwgbl/
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
|
|
The commit below prevented MPV from unloading correctly due to blocking
the netdev down event, allow sending the event for MPV mode to maintain
proper unload flow.
Fixes: 379013776222 ("RDMA/mlx5: Handle link status event only for LAG device")
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Link: https://patch.msgid.link/d7731478e456f61255af798a7fd4e64b006ddebb.1735567976.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Fixed to return ENXIO from __send_message_basic_sanity()
to indicate that device is in error state. In the case of
ERR_DEVICE_DETACHED state, the driver should not post the
commands to the firmware as it will time out eventually.
Removed bnxt_re_modify_qp() call from bnxt_re_dev_stop()
as it is a no-op.
Fixes: cc5b9b48d447 ("RDMA/bnxt_re: Recover the device when FW error is detected")
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Link: https://patch.msgid.link/20241231025008.2267162-1-kalesh-anakkur.purayil@broadcom.com
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Move the declaration of the 'ib_sge list' variable outside the
'always_invalidate' block to ensure it remains accessible for use
throughout the function.
Previously, 'ib_sge list' was declared within the 'always_invalidate'
block, limiting its accessibility, then caused a
'BUG: kernel NULL pointer dereference'[1].
? __die_body.cold+0x19/0x27
? page_fault_oops+0x15a/0x2d0
? search_module_extables+0x19/0x60
? search_bpf_extables+0x5f/0x80
? exc_page_fault+0x7e/0x180
? asm_exc_page_fault+0x26/0x30
? memcpy_orig+0xd5/0x140
rxe_mr_copy+0x1c3/0x200 [rdma_rxe]
? rxe_pool_get_index+0x4b/0x80 [rdma_rxe]
copy_data+0xa5/0x230 [rdma_rxe]
rxe_requester+0xd9b/0xf70 [rdma_rxe]
? finish_task_switch.isra.0+0x99/0x2e0
rxe_sender+0x13/0x40 [rdma_rxe]
do_task+0x68/0x1e0 [rdma_rxe]
process_one_work+0x177/0x330
worker_thread+0x252/0x390
? __pfx_worker_thread+0x10/0x10
This change ensures the variable is available for subsequent operations
that require it.
[1] https://lore.kernel.org/linux-rdma/6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com/
Fixes: 9cb837480424 ("RDMA/rtrs: server: main functionality")
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Link: https://patch.msgid.link/20241231013416.1290920-1-lizhijian@fujitsu.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
The RDMA CM module might invoke erdma_create_ah() or erdma_destroy_ah()
in a non-sleepable context. Both of these functions will call the
erdma_post_cmd_wait(), which can potentially sleep and occasionally lead
to a hard lockup. Therefore, post the create_ah and destroy_ah commands in
polling mode if the RDMA_CREATE_AH_SLEEPABLE and RDMA_DESTROY_AH_SLEEPABLE
flags are not set, respectively.
Reviewed-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Boshi Yu <boshiyu@linux.alibaba.com>
Link: https://patch.msgid.link/20241226084141.74823-5-boshiyu@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Several scenarios require posting commands to the cmdq in a non-sleepable
context. For example, the cm_alloc_msg() might call erdma_create_ah()
while still holding a spinlock. So we add support for non-sleeping
erdma_post_cmd_wait().
Reviewed-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Boshi Yu <boshiyu@linux.alibaba.com>
Link: https://patch.msgid.link/20241226084141.74823-4-boshiyu@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
The erdma_post_cmd_wait() function returns the cmdq response
only when both resp0 and resp1 are not NULL.
Reviewed-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Boshi Yu <boshiyu@linux.alibaba.com>
Link: https://patch.msgid.link/20241226084141.74823-3-boshiyu@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Set the query_ah field to the erdma_create_ah() function and set
the size_ib_ah field to the size of struct erdma_ah.
Reviewed-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Boshi Yu <boshiyu@linux.alibaba.com>
Link: https://patch.msgid.link/20241226084141.74823-2-boshiyu@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Make sure the device is being reset on driver exit whatever the reason
is, to keep the device aligned and allow it to close shared resources
(e.g. admin queue).
Reviewed-by: Firas Jahjah <firasj@amazon.com>
Reviewed-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
Link: https://patch.msgid.link/20241225131548.15155-1-mrgolin@amazon.com
Reviewed-by: Gal Pressman <gal.pressman@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
hns3 NIC driver can directly notify the RoCE driver about link status
events bypassing the netdev notifier. This can provide more timely
event dispatching for ULPs.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
The link status events of non-LAG devices are now handled in ib_core,
so only LAG device events need to be handled in driver.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
In addition to dispatching event, some private stuffs need to be
done in this driver's link status event handler. Implement the new
report_port_event() ops with the link status event codes.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
In addition to dispatching event, some private stuffs need to be
done in this driver's link status event handler. Implement the new
report_port_event() ops with the link status event codes.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
In addition to dispatching event, some private stuffs need to be
done in this driver's link status event handler. Implement the new
report_port_event() ops with the link status event codes.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Since the netdev events of link status is now handled in ib_core,
remove the related code in drivers.
In addition, remove sdev->state as it is only used in siw_query_port(),
and it can be replaced by ib_get_curr_port_state().
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Since the netdev events of link status is now handled in ib_core,
remove the related code in drivers.
In addition, remove the setting of port->attr.state in rxe_port_up()
and rxe_port_down(), as it is only used in rxe_query_port(), and it
can be replaced by ib_get_curr_port_state().
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Since the netdev events of link status is now handled in ib_core,
remove the related code in drivers.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Since the netdev events of link status is now handled in ib_core,
remove the related code in drivers.
In addition, remove dev->state as it is only used in erdma_query_port(),
and it can be replaced by ib_get_curr_port_state().
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Since the netdev events of link status is now handled in ib_core,
remove the related code in drivers.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Currently the dispatching of link status events is implemented by
each RDMA driver independently, and most of them have very similar
patterns. Add support for this in ib_core so that we can get rid
of duplicate codes in each driver.
A new last_port_state is added in ib_port_cache to cache the port
state of the last link status events dispatching. The original
port_state in ib_port_cache is not used here because it will be
updated when ib_dispatch_event() is called, which means it may
be changed between two link status events, and may lead to a loss
of event dispatching.
Some drivers currently have some private stuff in their link status
events handler in addition to event dispatching, and cannot be
perfectly integrated into the ib_core handling process. For these
drivers, add a new ops report_port_event() so that they can keep
their current processing.
Finally, events of LAG devices are not supported yet in this patch
as currently there is no way to obtain ibdev from upper netdev in
ib_core. This can be a TODO work after the core have more support
for LAG.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Query the port number of a netdev associated with an ibdev.
Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
ib_copy_path_rec_from_user() has been unused since 2019's
commit a1a8e4a85cf7 ("rdma: Delete the ib_ucm module")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://patch.msgid.link/20241221014021.343979-5-linux@treblig.org
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
The last use of ibdev_printk() was removed in 2019 by
commit b2299e83815c ("RDMA: Delete DEBUG code")
Remove it.
Note: The __ibdev_printk() is still used in the idev_err etc functions
so leave that.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://patch.msgid.link/20241221014021.343979-4-linux@treblig.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
The last use of ib_find_exact_cached_pkey() was removed in 2012
by commit 2c75d2ccb6e5 ("IB/mlx4: Fix QP1 P_Key processing in the Primary
Physical Function (PPF)")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://patch.msgid.link/20241221014021.343979-3-linux@treblig.org
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
ib_ud_header_unpack() is unused, and I can't see any sign of it
ever having been used in git. The only reference I can find
is from December 2004 BKrev: 41d30034XNbBUl0XnyC6ig9V61Nf-A when
it looks like it was added.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://patch.msgid.link/20241221014021.343979-2-linux@treblig.org
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
irdma_cqp_commit_fpm_val_cmd() and irdma_cqp_query_fpm_val_cmd()
were added in 2021 by
commit 915cc7ac0f8e ("RDMA/irdma: Add miscellaneous utility definitions")
but haven't been used.
Remove them.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://patch.msgid.link/20241223001613.307138-1-linux@treblig.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
The similar patch in siw is in the link:
https://git.kernel.org/rdma/rdma/c/16b87037b48889
This problem also occurred in RXE. The following analyze this problem.
In the following Call Traces:
"
BUG: KASAN: slab-use-after-free in dev_get_flags+0x188/0x1d0 net/core/dev.c:8782
Read of size 4 at addr ffff8880554640b0 by task kworker/1:4/5295
CPU: 1 UID: 0 PID: 5295 Comm: kworker/1:4 Not tainted
6.12.0-rc3-syzkaller-00399-g9197b73fd7bb #0
Hardware name: Google Compute Engine/Google Compute Engine,
BIOS Google 09/13/2024
Workqueue: infiniband ib_cache_event_task
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
dev_get_flags+0x188/0x1d0 net/core/dev.c:8782
rxe_query_port+0x12d/0x260 drivers/infiniband/sw/rxe/rxe_verbs.c:60
__ib_query_port drivers/infiniband/core/device.c:2111 [inline]
ib_query_port+0x168/0x7d0 drivers/infiniband/core/device.c:2143
ib_cache_update+0x1a9/0xb80 drivers/infiniband/core/cache.c:1494
ib_cache_event_task+0xf3/0x1e0 drivers/infiniband/core/cache.c:1568
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
"
1). In the link [1],
"
infiniband syz2: set down
"
This means that on 839.350575, the event ib_cache_event_task was sent andi
queued in ib_wq.
2). In the link [1],
"
team0 (unregistering): Port device team_slave_0 removed
"
It indicates that before 843.251853, the net device should be freed.
3). In the link [1],
"
BUG: KASAN: slab-use-after-free in dev_get_flags+0x188/0x1d0
"
This means that on 850.559070, this slab-use-after-free problem occurred.
In all, on 839.350575, the event ib_cache_event_task was sent and queued
in ib_wq,
before 843.251853, the net device veth was freed.
on 850.559070, this event was executed, and the mentioned freed net device
was called. Thus, the above call trace occurred.
[1] https://syzkaller.appspot.com/x/log.txt?x=12e7025f980000
Reported-by: syzbot+4b87489410b4efd181bf@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=4b87489410b4efd181bf
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://patch.msgid.link/20241220222325.2487767-1-yanjun.zhu@linux.dev
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Currently mlx5_flow_destination includes counter_id which is assigned in
case we use flow counter on the flow steering rule. However, counter_id
is not enough data in case of using HW Steering. Thus, have mlx5_fc
object as part of mlx5_flow_destination instead of counter_id and assign
it where needed.
In case counter_id is received from user space, create a local counter
object to represent it.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
