[PATCH] riscv: fix building external modules

Palmer Dabbelt palmer at dabbelt.com
Thu Nov 18 23:11:00 PST 2021


On Tue, 02 Nov 2021 08:51:43 PDT (-0700), schwab at suse.de wrote:
> When building external modules, vdso_prepare should not be run.  If the
> kernel sources are read-only, it will fail.
>
> Fixes: fde9c59aebaf ("riscv: explicitly use symbol offsets for VDSO")
> Signed-off-by: Andreas Schwab <schwab at suse.de>
> ---
>  arch/riscv/Makefile | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
> index 0eb4568fbd29..41f3a75fe2ec 100644
> --- a/arch/riscv/Makefile
> +++ b/arch/riscv/Makefile
> @@ -108,11 +108,13 @@ PHONY += vdso_install
>  vdso_install:
>  	$(Q)$(MAKE) $(build)=arch/riscv/kernel/vdso $@
>
> +ifeq ($(KBUILD_EXTMOD),)
>  ifeq ($(CONFIG_MMU),y)
>  prepare: vdso_prepare
>  vdso_prepare: prepare0
>  	$(Q)$(MAKE) $(build)=arch/riscv/kernel/vdso include/generated/vdso-offsets.h
>  endif
> +endif
>
>  ifneq ($(CONFIG_XIP_KERNEL),y)
>  ifeq ($(CONFIG_RISCV_M_MODE)$(CONFIG_SOC_CANAAN),yy)

Thanks, this is on fixes.



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