On Fri, 2019-06-07 at 16:25 +0100, Will Deacon wrote: > On Fri, Jun 07, 2019 at 11:22:45AM -0400, Qian Cai wrote: > > The linux-next commit "arm64: Silence gcc warnings about arch ABI drift" [1] > > breaks clang build where it screams that unknown option "-Wno-psabi" and > > generates errors below, > > So that can be easily fixed with cc-option... > > > [1] https://lore.kernel.org/linux-arm-kernel/1559817223-32585-1-git-send-ema > > il-D > > ave.Martin@xxxxxxx/ > > > > ./drivers/firmware/efi/libstub/arm-stub.stub.o: In function > > `install_memreserve_table': > > ./linux/drivers/firmware/efi/libstub/arm-stub.c:73: undefined reference to > > `__efistub___stack_chk_guard' > > ./linux/drivers/firmware/efi/libstub/arm-stub.c:73: undefined reference to > > `__efistub___stack_chk_guard' > > ./linux/drivers/firmware/efi/libstub/arm-stub.c:93: undefined reference to > > `__efistub___stack_chk_guard' > > ./linux/drivers/firmware/efi/libstub/arm-stub.c:93: undefined reference to > > `__efistub___stack_chk_guard' > > ./linux/drivers/firmware/efi/libstub/arm-stub.c:94: undefined reference to > > `__efistub___stack_chk_fail > > ... but this looks unrelated. Are you saying you don't see these errors if > you revert Dave's patch? Yes.
