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| author | Selvin Xavier <selvin.xavier@broadcom.com> | 2023-07-14 11:22:49 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2023-07-17 08:02:13 +0300 |
| commit | 29900bf351e1a7e4643da5c3c3cd9df75c577b88 (patch) | |
| tree | e21541b7f2369316488e610c7407fa66b9a73d25 /drivers/infiniband/sw | |
| parent | b5bbc6551297447d3cca55cf907079e206e9cd82 (diff) | |
| download | linux-29900bf351e1a7e4643da5c3c3cd9df75c577b88.tar.xz | |
RDMA/bnxt_re: Fix hang during driver unload
Driver unload hits a hang during stress testing of load/unload.
stack trace snippet -
tasklet_kill at ffffffff9aabb8b2
bnxt_qplib_nq_stop_irq at ffffffffc0a805fb [bnxt_re]
bnxt_qplib_disable_nq at ffffffffc0a80c5b [bnxt_re]
bnxt_re_dev_uninit at ffffffffc0a67d15 [bnxt_re]
bnxt_re_remove_device at ffffffffc0a6af1d [bnxt_re]
tasklet_kill can hang if the tasklet is scheduled after it is disabled.
Modified the sequences to disable the interrupt first and synchronize
irq before disabling the tasklet.
Fixes: 1ac5a4047975 ("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/1689322969-25402-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband/sw')
0 files changed, 0 insertions, 0 deletions