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| author |   Amit Cohen <amcohen@nvidia.com> | 2022-01-27 11:02:25 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-01-27 19:19:58 -0800 |
| commit | bcdfd615f83b4bd04678109bf18022d1476e4bbf (patch) | |
| tree | bf2deab99b6519450a618c7bd31ac7efdb8835d7 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | mlxsw: core: Consolidate trap groups to a single event group (diff) | |
| download | linux-dev-bcdfd615f83b4bd04678109bf18022d1476e4bbf.tar.xz linux-dev-bcdfd615f83b4bd04678109bf18022d1476e4bbf.zip | |
mlxsw: spectrum: Guard against invalid local ports
When processing events generated by the device's firmware, the driver
protects itself from events reported for non-existent local ports, but
not for the CPU port (local port 0), which exists, but does not have all
the fields as any local port.
This can result in a NULL pointer dereference when trying access
'struct mlxsw_sp_port' fields which are not initialized for CPU port.
Commit 63b08b1f6834 ("mlxsw: spectrum: Protect driver from buggy firmware")
already handled such issue by bailing early when processing a PUDE event
reported for the CPU port.
Generalize the approach by moving the check to a common function and
making use of it in all relevant places.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions