to go through any review or ratification process by the RISC-V
Foundation. To avoid the maintenance complexity and potential
performance impact of adding kernel code for implementor-specific
-RISC-V extensions, we'll only to accept patches for extensions that
+RISC-V extensions, we'll only accept patches for extensions that
have been officially frozen or ratified by the RISC-V Foundation.
(Implementors, may, of course, maintain their own Linux kernel trees
containing code for any custom extensions that they wish.)