linux/drivers/infiniband/hw
Kashyap Desai bf7ab557d6 RDMA/bnxt_re: Avoid calling wake_up threads from spin_lock context
[ Upstream commit 3099bcdc19 ]

bnxt_qplib_service_creq can be called from interrupt or tasklet or
process context. So the function take irq variant  of spin_lock.
But when wake_up is invoked with the lock held, it is putting the
calling context to sleep.

[exception RIP: __wake_up_common+190]
RIP: ffffffffb7539d7e  RSP: ffffa73300207ad8  RFLAGS: 00000083
RAX: 0000000000000001  RBX: ffff91fa295f69b8  RCX: dead000000000200
RDX: ffffa733344af940  RSI: ffffa73336527940  RDI: ffffa73336527940
RBP: 000000000000001c   R8: 0000000000000002   R9: 00000000000299c0
R10: 0000017230de82c5  R11: 0000000000000002  R12: ffffa73300207b28
R13: 0000000000000000  R14: ffffa733341bf928  R15: 0000000000000000
ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018

Call the wakeup after releasing the lock.

Fixes: 1ac5a40479 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1686308514-11996-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-07-19 16:21:29 +02:00
..
bnxt_re RDMA/bnxt_re: Avoid calling wake_up threads from spin_lock context 2023-07-19 16:21:29 +02:00
cxgb4 iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry() 2023-03-10 09:33:39 +01:00
efa RDMA/efa: Fix unsupported page sizes in device 2023-06-09 10:33:58 +02:00
erdma RDMA/erdma: Use fixed hardware page size 2023-05-11 23:03:33 +09:00
hfi1 IB/hfi1: Fix wrong mmu_node used for user SDMA packet after invalidate 2023-07-19 16:21:25 +02:00
hns RDMA/hns: Fix hns_roce_table_get return value 2023-07-19 16:21:25 +02:00
irdma RDMA/irdma: avoid fortify-string warning in irdma_clr_wqes 2023-07-19 16:21:25 +02:00
mlx4 RDMA/mlx4: Prevent shift wrapping in set_user_sq_size() 2023-05-11 23:03:33 +09:00
mlx5 RDMA/mlx5: Fix affinity assignment 2023-06-21 16:01:00 +02:00
mthca IB: move from strlcpy with unused retval to strscpy 2022-08-21 14:18:02 +03:00
ocrdma IB: move from strlcpy with unused retval to strscpy 2022-08-21 14:18:02 +03:00
qedr RDMA/qedr: clean up work queue on failure in qedr_alloc_resources() 2022-10-28 12:59:40 -03:00
qib RDMA/qib: fix repeated words in comments 2022-09-20 14:11:14 +03:00
usnic RDMA/usnic: use iommu_map_atomic() under spin_lock() 2023-02-14 19:11:43 +01:00
vmw_pvrdma RDMA/pvrdma: Remove useless DMA-32 fallback configuration 2022-01-28 10:49:04 -04:00
Makefile RDMA/erdma: Add driver to kernel build environment 2022-07-27 16:04:05 -03:00