net: ipa: kill all other transaction lists
None of the transaction lists are actually needed any more, because transaction IDs (which have been shown to be equivalent) are used instead. So we can remove all of them, as well as the spinlock that protects updates to them. Not requiring a lock simplifies gsi_trans_free() as well; we only need to check the reference count once to decide whether we've hit the last reference. This makes the links field in the gsi_trans structure unused, so get rid of that as well. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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