xtensa: iss: clean up per-device locking in network driver

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Per-device locking in the ISS network driver is used to protect poll
timer and stats updates. Stat collection is not protected.
Remove per-device locking everywhere except the stats updates. Replace
ndo_get_stats callback with ndo_get_stats64 and use proper locking there
as well.
As a side effect this fixes possible deadlock between iss_net_close
and iss_net_timer.

Reported by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

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This commit is contained in:

Max Filippov 2022-04-08 01:56:53 -07:00

parent fd16501614

commit b7a861a6c3

1 changed files with 18 additions and 21 deletions

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39

arch/xtensa/platforms/iss/network.c

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