greybus: send operation result in response message header

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Define a result byte in an operation response message header.

All the protocols now define the mandatory status as the first
byte in their response message.  Assume that, for the moment,
and save that value into the header result field (until we can
get the simulator set up to handle the new protocol).

Record the result from the response header as the result of the
overall operation.

Start enforcing the rule that we ignore all response payload (in
fact, the entire message) if we see a non-zero result value.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

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Alex Elder 2014-11-19 17:55:03 -06:00 • committed by Greg Kroah-Hartman

parent 30a2964f84

commit d30df426ff

1 changed files with 25 additions and 11 deletions

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drivers/staging/greybus/operation.c

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