The result of issuing a channel control command should be that the
channel changes state. If enabled, a completion interrupt signals
that the channel state has changed. This interrupt is enabled by
gsi_channel_command() and disabled again after the command has
completed (or we time out).
There is a window of time--after the completion interrupt is disabled
but before the channel state is read--during which the command could
complete successfully without interrupting. This would cause the
channel to transition to the desired new state.
So whether a channel command ends via completion interrupt or
timeout, we can consider the command successful if the channel
has entered the desired state (and a failure if it has not,
regardless of the cause).
Fixes: d6c9e3f506 ("net: ipa: only enable generic command completion IRQ when needed");
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6ffddf3b3d