This is a note to let you know that I've just added the patch titled riscv: fix building external modules to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: riscv-fix-building-external-modules.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 47c65aee929d032b1d4e4c2cdfe13b695e4f3e0e Author: Andreas Schwab <schwab@xxxxxxx> Date: Tue Nov 2 16:51:43 2021 +0100 riscv: fix building external modules [ Upstream commit 5a19c7e06236a9c55dfc001bb4d1a8f1950d23e7 ] 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@xxxxxxx> Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx> Tested-by: Nathan Chancellor <nathan@xxxxxxxxxx> Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 0eb4568fbd290..41f3a75fe2ec8 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)