cc4fac519d
commit 0d5e2a82232605b337972fb2c7d0cbc46898aca1 upstream.
The UMAC_CMD register is written from different execution
contexts and has insufficient synchronization protections to
prevent possible corruption. Of particular concern are the
acceses from the phy_device delayed work context used by the
adjust_link call and the BH context that may be used by the
ndo_set_rx_mode call.
A spinlock is added to the driver to protect contended register
accesses (i.e. reg_lock) and it is used to synchronize accesses
to UMAC_CMD.
Fixes:
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|---|---|---|
| .. | ||
| Makefile | ||
| bcmgenet.c | ||
| bcmgenet.h | ||
| bcmgenet_wol.c | ||
| bcmmii.c | ||