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(parent: f13a6e5) | patch
IB/hfi1: Harden state transition to Armed and Active
authorAlex Estrin <[email protected]>
Sat, 29 Jul 2017 15:43:20 +0000 (08:43 -0700)
committerDoug Ledford <[email protected]>
Mon, 31 Jul 2017 19:18:37 +0000 (15:18 -0400)
commit5efd40cad4bf98f0d1f6b726d67e39decd85edc9
treeddcd4af0836f6a0332d719aa9adc240fca7b5cfctree | snapshot
parentf13a6e5e2e0192737c3bdbdb16c5cc0181cc86e5commit | diff
IB/hfi1: Harden state transition to Armed and Active

There is a window that allows other threads to read state of
'host_link_state' as a new, before the hardware actual state is set.
This patch closes the window by indicating a new state only after
hardware transition is complete.

Reviewed-by: Mike Marciniszyn <[email protected]>
Signed-off-by: Alex Estrin <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
drivers/infiniband/hw/hfi1/chip.c diff | blob | history
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