AuxXxilium/linux_dsm_epyc7002
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0cb42c0265
linux_dsm_epyc7002/drivers/infiniband/core
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Jason Gunthorpe 0cb42c0265 RDMA/core: Fix bogus WARN_ON during ib_unregister_device_queued() 
ib_unregister_device_queued() can only be used by drivers using the new
dealloc_device callback flow, and it has a safety WARN_ON to ensure
drivers are using it properly.

However, if unregister and register are raced there is a special
destruction path that maintains the uniform error handling semantic of
'caller does ib_dealloc_device() on failure'. This requires disabling the
dealloc_device callback which triggers the WARN_ON.

Instead of using NULL to disable the callback use a special function
pointer so the WARN_ON does not trigger.

Fixes: d0899892ed ("RDMA/device: Provide APIs from the core code to help unregistration")
Link: https://lore.kernel.org/r/0-v1-a36d512e0a99+762-syz_dealloc_driver_jgg@nvidia.com
Reported-by: syzbot+4088ed905e4ae2b0e13b@syzkaller.appspotmail.com
Suggested-by: Hillf Danton <hdanton@sina.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-02 14:25:42 -03:00
..
addr.c RDMA/addr: Mark addr_resolve as might_sleep() 2020-05-12 21:32:52 -03:00
agent.c RDMA: Mark if destroy address handle is in a sleepable context 2018-12-19 16:28:03 -07:00
agent.h
cache.c IB/core: Fix potential NULL pointer dereference in pkey cache 2020-05-12 11:47:48 -03:00
cgroup.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
cm_msgs.h RDMA/cm: Remove CM message structs 2020-01-25 15:11:37 -04:00
cm.c RDMA/cm: Spurious WARNING triggered in cm_destroy_id() 2020-06-03 15:48:18 -03:00
cma_configfs.c IB/cma: Fix ports memory leak in cma_configfs 2020-05-22 15:37:19 -03:00
cma_priv.h RDMA/ucma: Extend ucma_connect to receive ECE parameters 2020-05-27 16:05:05 -03:00
cma_trace.c RDMA/cma: Add trace points in RDMA Connection Manager 2020-01-07 16:10:53 -04:00
cma_trace.h RDMA/core: Move and rename trace_cm_id_create() 2020-06-02 20:32:54 -03:00
cma.c RDMA/core: Move and rename trace_cm_id_create() 2020-06-02 20:32:54 -03:00
core_priv.h RDMA/core: Introduce shared CQ pool API 2020-05-29 16:09:02 -03:00
counters.c RDMA/counter: Prevent auto-binding a QP which are not tracked with res 2019-12-12 15:38:15 -05:00
cq.c RDMA/core: Introduce shared CQ pool API 2020-05-29 16:09:02 -03:00
device.c RDMA/core: Fix bogus WARN_ON during ib_unregister_device_queued() 2020-07-02 14:25:42 -03:00
ib_core_uverbs.c RDMA/core: Ensure that rdma_user_mmap_entry_remove() is a fence 2020-01-25 14:48:33 -04:00
iwcm.c RDMA/iwcm: Fix iwcm work deallocation 2020-03-04 14:28:25 -04:00
iwcm.h
iwpm_msg.c RDMA/iwpm: Delete unnecessary checks before the macro call "dev_kfree_skb" 2019-08-27 13:09:23 -03:00
iwpm_util.c RDMA/iwpm: Delete unnecessary checks before the macro call "dev_kfree_skb" 2019-08-27 13:09:23 -03:00
iwpm_util.h infiniband: fix core/ipwm_util.h kernel-doc warnings 2019-10-22 14:45:31 -03:00
lag.c RDMA/core: Consider flow label when building skb 2020-05-06 16:51:43 -03:00
mad_priv.h IB/mad: Change atomics to refcount API 2020-06-24 16:43:45 -03:00
mad_rmpp.c IB/mad: Delete RMPP_STATE_CANCELING state 2020-06-24 16:43:45 -03:00
mad_rmpp.h
mad.c IB/mad: Change atomics to refcount API 2020-06-24 16:43:45 -03:00
Makefile RDMA/core: Remove FMR pool API 2020-06-02 20:32:53 -03:00
mr_pool.c Linux 5.2-rc6 2019-06-28 21:18:23 -03:00
multicast.c RDMA: Allow ib_client's to fail when add() is called 2020-05-06 11:57:33 -03:00
netlink.c IB/core: Avoid deadlock during netlink message handling 2019-10-24 20:49:37 -03:00
nldev.c RDMA: Add support to dump resource tracker in RAW format 2020-06-24 08:52:29 -03:00
opa_smi.h RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
packer.c
rdma_core.c RDMA 5.8 merge window pull request 2020-06-05 14:05:57 -07:00
rdma_core.h IB/uverbs: Introduce create/destroy QP commands over ioctl 2020-05-21 20:39:36 -03:00
restrack.c RDMA/restrack: Remove PID namespace support 2019-10-23 15:58:31 -03:00
restrack.h RDMA/restrack: Remove PID namespace support 2019-10-23 15:58:31 -03:00
roce_gid_mgmt.c drivers: use in_dev_for_each_ifa_rtnl/rcu 2019-06-02 18:06:26 -07:00
rw.c RDMA/rw: use DIV_ROUND_UP to calculate nr_ops 2020-04-15 11:34:49 -03:00
sa_query.c RDMA/core: Use sizeof_field() helper 2020-05-27 13:46:05 -03:00
sa.h RDMA/core: Annotate timeout as unsigned long 2018-10-16 13:34:01 -04:00
security.c RDMA/core: Ensure security pkey modify is not lost 2020-03-24 19:53:25 -03:00
smi.c
smi.h RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
sysfs.c RDMA/core: Fix several reference count leaks. 2020-05-29 15:35:49 -03:00
trace.c RDMA/core: Trace points for diagnosing completion queue issues 2020-01-07 16:10:53 -04:00
ucma.c RDMA/cma: Provide ECE reject reason 2020-05-27 16:05:05 -03:00
ud_header.c RDMA/core: Use sizeof_field() helper 2020-05-27 13:46:05 -03:00
umem_odp.c RDMA: Correct trivial kernel-doc inconsistencies 2020-06-22 11:57:39 -03:00
umem.c RDMA/core: Add weak ordering dma attr to dma mapping 2020-02-13 13:38:02 -04:00
user_mad.c RDMA: Allow ib_client's to fail when add() is called 2020-05-06 11:57:33 -03:00
uverbs_cmd.c RDMA: Remove 'max_map_per_fmr' 2020-06-02 20:32:54 -03:00
uverbs_ioctl.c RDMA/core: Use sizeof_field() helper 2020-05-27 13:46:05 -03:00
uverbs_main.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
uverbs_marshall.c IB/cm: Replace members of sa_path_rec with 'struct sgid_attr *' 2018-06-25 14:19:57 -06:00
uverbs_std_types_async_fd.c RDMA/uverbs: Move IB_EVENT_DEVICE_FATAL to destroy_uobj 2020-05-12 17:02:25 -03:00
uverbs_std_types_counters.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_cq.c IB/uverbs: Extend CQ to get its own asynchronous event FD 2020-05-21 20:34:53 -03:00
uverbs_std_types_device.c RDMA/core: Add the core support field to METHOD_GET_CONTEXT 2020-01-16 15:55:46 -04:00
uverbs_std_types_dm.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_flow_action.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_mr.c RDMA/core: Allow the ioctl layer to abort a fully created uobject 2020-05-21 20:10:46 -03:00
uverbs_std_types_qp.c IB/uverbs: Introduce create/destroy QP commands over ioctl 2020-05-21 20:39:36 -03:00
uverbs_std_types_srq.c IB/uverbs: Introduce create/destroy SRQ commands over ioctl 2020-05-21 20:39:35 -03:00
uverbs_std_types_wq.c IB/uverbs: Introduce create/destroy WQ commands over ioctl 2020-05-21 20:39:35 -03:00
uverbs_std_types.c IB/uverbs: Introduce create/destroy QP commands over ioctl 2020-05-21 20:39:36 -03:00
uverbs_uapi.c IB/uverbs: Introduce create/destroy QP commands over ioctl 2020-05-21 20:39:36 -03:00
uverbs.h IB/uverbs: Extend CQ to get its own asynchronous event FD 2020-05-21 20:34:53 -03:00
verbs.c RDMA/core: Delete not-used create RWQ table function 2020-06-24 16:46:18 -03:00