On 2017/11/1 22:16, Mark Rutland wrote: >> it will report Error. > Alternatives cannot be nested. You need to define a cap like: > > ARM64_HAS_RAS_NOT_IESB > > ... which is set when ARM64_HAS_RAS_EXTN && !ARM64_HAS_IESB. > > Then you can do: > > alternative_if ARM64_HAS_RAS_NOT_IESB > esb > alternative_else_nop_endif > > See ARM64_ALT_PAN_NOT_UAO for an example. > > That said, as Robin points out we may not even need the alternative.
Ok, got it. thank you very much for your point and opinion > > Thanks, > Mark.
