Re: [PATCH 3/3] RISC-V: Access CSRs using CSR numbers

[Christoph Hellwig]

On Sat, Apr 13, 2019 at 07:39:44AM +0000, Anup Patel wrote:
> We should prefer accessing CSRs using their CSR numbers because:
> 1. It compiles fine with older toolchains.
> 2. We can use latest CSR names in #define macro names of CSR numbers
>    as-per RISC-V spec.
> 3. We can access newly added CSRs even if toolchain does not recognize
>    newly addes CSRs by name.

This looks mostly fine, but also please remove all the comments
regarding using sptbr instead of satp now that they are not true
anymore.