Re: [PATCH v1] RISC-V: convert new selectors of RISCV_ALTERNATIVE to dependencies

From: Andrew Jones
Date: Fri Mar 24 2023 - 08:40:09 EST


On Fri, Mar 24, 2023 at 12:12:41PM +0000, Conor Dooley wrote:
> for-next contains two additional extensions that select
> RISCV_ALTERNATIVE. RISCV_ALTERNATIVE no longer needs to be selected by
> individual config options as it is now selected for !XIP_KERNEL builds
> by the top level RISCV option.
> These extensions rely on the alternative framework, so convert the
> "select"s to "depends on"s instead.
>
> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
> ---
> Applies on top of my series doing the aforementioned conversion:
> https://lore.kernel.org/all/20230324100538.3514663-3-conor.dooley@xxxxxxxxxxxxx/
>
> This patch is sent on its own, because I expect the others to be applied
> to fixes, as it fixes a v6.3 regression.
> For this patch, I applied my other series to v6.3-rc1 and merged that
> into for-next, and created this patch on top of the result.
> ---
> arch/riscv/Kconfig | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index d2acd69d6e3e..a48d1ee677ec 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -402,8 +402,8 @@ config RISCV_ISA_C
> config RISCV_ISA_SVNAPOT
> bool "SVNAPOT extension support"
> depends on 64BIT && MMU
> + depends on RISCV_ALTERNATIVE
> default y
> - select RISCV_ALTERNATIVE
> help
> Allow kernel to detect the SVNAPOT ISA-extension dynamically at boot
> time and enable its usage.
> @@ -478,8 +478,8 @@ config RISCV_ISA_ZICBOM
>
> config RISCV_ISA_ZICBOZ
> bool "Zicboz extension support for faster zeroing of memory"
> - depends on !XIP_KERNEL && MMU
> - select RISCV_ALTERNATIVE
> + depends on MMU
> + depends on RISCV_ALTERNATIVE
> default y
> help
> Enable the use of the ZICBOZ extension (cbo.zero instruction)
> --
> 2.39.2
>

Reviewed-by: Andrew Jones <ajones@xxxxxxxxxxxxxxxx>