Andrey Abramov <st5pub@xxxxxxxxx> writes: > Replace relaswap with built-in one, because relaswap > does a simple byte to byte swap. I replied to v1 with an ack, which stands, this is just a clarification. > Since Spectre mitigations have made indirect function calls more > expensive, and the default simple byte copies swap is implemented > without them, an "optimized" custom swap function is now > a waste of time as well as code. Spectre mitigations don't necessarily slow down indirect function calls on all arches or in all configurations on all arches, so that justification is a bit dubious. That's not really a problem for this patch, because the existing overhead of the function call is probably already enough to rival the cost of the 24 byte copy. cheers _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
