On Thu, Jul 16, 2026 at 04:22:10PM -0700, Nathan Chancellor wrote: > On Thu, Jul 16, 2026 at 02:03:22PM -0300, Jason Gunthorpe wrote: > > The tools/include readl/writel MMIO accessors on arm64 use > > inner-shareable barriers (dmb ish) while the kernel uses > > outer-shareable (dmb osh). Fix them to match. > > > > Add __io_bw() and __io_ar() definitions matching the kernel's > > arch/arm64/include/asm/io.h, including the dummy control dependency > > in __io_ar() that orders MMIO reads against all subsequent > > instructions. > > > > Assisted-by: Claude:claude-opus-4.6 > > Signed-off-by: Jason Gunthorpe <[email protected]> > ... > > diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk > > index f02cc8a2e4ae32..fdd22df9174b88 100644 > > --- a/tools/testing/selftests/lib.mk > > +++ b/tools/testing/selftests/lib.mk > > @@ -5,9 +5,14 @@ ifneq ($(filter %/,$(LLVM)),) > > LLVM_PREFIX := $(LLVM) > > else ifneq ($(filter -%,$(LLVM)),) > > LLVM_SUFFIX := $(LLVM) > > +else ifneq ($(LLVM),1) > > +$(error Invalid value for LLVM, see Documentation/kbuild/llvm.rst) > > endif > > > > CLANG := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) > > +LD := $(LLVM_PREFIX)ld.lld$(LLVM_SUFFIX) > > +# Selftests link through $(CC), so point clang at the LLVM linker. > > +LDFLAGS += --ld-path=$(LD) > > > > CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi > > CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu > > Was this hunk intended to be included in this change? It is not > mentioned anywhere. I assume this is the only reason that the LLVM folks > were CC'd on this series.
Er no, I can no longer remember what that was about, it wasn't in v2. Actually I also see I forgot to delete this patch as Will suggested in the first place. Jason
