diff options
| author | Florian Fainelli <[email protected]> | 2017-10-20 15:59:30 -0700 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2017-10-23 05:28:40 +0100 |
| commit | e83b171568e6a69cff5eb592907b71e480b535ac (patch) | |
| tree | ddac2e83934fb6850e25b5e48effd37892edccf0 /tools/perf/scripts/python | |
| parent | fbd15f48e052b3f6bdb21857e8bcaac63bfbb3fd (diff) | |
net: systemport: Guard against unmapped TX ring
Because SYSTEMPORT is a (semi) normal network device, the stack may attempt to
queue packets on it oustide of the DSA slave transmit path. When that happens,
the DSA layer has not had a chance to tag packets with the appropriate per-port
and per-queue information, and if that happens and we don't have a port 0 queue
0 available (e.g: on boards where this does not exist), we will hit a NULL
pointer de-reference in bcm_sysport_select_queue().
Guard against such cases by testing for the TX ring validity.
Fixes: 84ff33eeb23d ("net: systemport: Establish DSA network device queue mapping")
Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions