From: Michael Ellerman mpe@ellerman.id.au
[ Upstream commit 2153fc9623e5465f503d793d4c94ad65e9ec9b5f ]
There's a build failure for Book3E without AltiVec: Error: cc1: error: AltiVec not supported in this target make[6]: *** [/linux/scripts/Makefile.build:250: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/display_mode_lib.o] Error 1
This happens because the amdgpu build is only gated by PPC_LONG_DOUBLE_128, but that symbol can be enabled even though AltiVec is disabled.
The only user of PPC_LONG_DOUBLE_128 is amdgpu, so just add a dependency on AltiVec to that symbol to fix the build.
Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20221027125626.1383092-1-mpe@ellerman.id.au Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index cbe7bb029aec..c1d36a22de30 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -284,7 +284,7 @@ config PPC #
config PPC_LONG_DOUBLE_128 - depends on PPC64 + depends on PPC64 && ALTIVEC def_bool $(success,test "$(shell,echo __LONG_DOUBLE_128__ | $(CC) -E -P -)" = 1)
config PPC_BARRIER_NOSPEC