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| author | Mingming Cao <mmc@linux.ibm.com> | 2026-10-13 11:29:20 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-10-20 15:37:49 -0700 |
| commit | 1412235447869922eb0ee041a31fab6176e60ab0 (patch) | |
| tree | aab1c61d4be7f6796b0d32805df057fab252d9ee /tools/lib/python/kdoc/python_version.py | |
| parent | 95811c873d1b97c424a7e6e731730cbf6656ab7e (diff) | |
ibmveth: disable the reset work before unregister in remove
ibmveth_remove() cancels the reset work before unregister_netdev(),
but NAPI keeps running until unregister closes the device and can
queue the reset again, on an interrupt enable failure, a bad
free_map entry or a bad RX slot. The reset can then run on the
adapter after free_netdev(), or reopen the device during unregister.
Use disable_work_sync(), which waits for a running reset and keeps
the work from being queued again. A bad RX slot also makes poll
spin, which can stall unregister; a later patch in this series
fixes that.
Found in review of the ibmveth multi-queue RX series and confirmed by
code inspection; it was not reproduced. Tested on a POWER10 LPAR with
unbind and bind cycles under traffic. No kernel selftests cover ibmveth.
Fixes: 2c91e2319ed9 ("net: ibmveth: Reset the adapter when unexpected states are detected")
Signed-off-by: Mingming Cao <mmc@linux.ibm.com>
Link: https://patch.msgid.link/20261013182926.30417-4-mmc@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/lib/python/kdoc/python_version.py')
0 files changed, 0 insertions, 0 deletions