The patch titled Subject: selftests/mm: fix powerpc ARCH check has been added to the -mm mm-hotfixes-unstable branch. Its filename is selftests-mm-fix-powerpc-arch-check.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: Michael Ellerman mpe@ellerman.id.au Subject: selftests/mm: fix powerpc ARCH check Date: Mon, 6 May 2024 21:58:25 +1000

In commit 0518dbe97fe6 ("selftests/mm: fix cross compilation with LLVM") the logic to detect the machine architecture in the Makefile was changed to use ARCH, and only fallback to uname -m if ARCH is unset. However the tests of ARCH were not updated to account for the fact that ARCH is "powerpc" for powerpc builds, not "ppc64".

Fix it by changing the checks to look for "powerpc", and change the uname -m logic to convert "ppc64.*" into "powerpc".

With that fixed the following tests now build for powerpc again: * protection_keys * va_high_addr_switch * virtual_address_range * write_to_hugetlbfs

Link: https://lkml.kernel.org/r/20240506115825.66415-1-mpe@ellerman.id.au Fixes: 0518dbe97fe6 ("selftests/mm: fix cross compilation with LLVM") Signed-off-by: Michael Ellerman mpe@ellerman.id.au Cc: Mark Brown broonie@kernel.org Cc: stable@vger.kernel.org [6.4+] Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

tools/testing/selftests/mm/Makefile | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/tools/testing/selftests/mm/Makefile~selftests-mm-fix-powerpc-arch-check +++ a/tools/testing/selftests/mm/Makefile @@ -12,7 +12,7 @@ uname_M := $(shell uname -m 2>/dev/null else uname_M := $(shell echo $(CROSS_COMPILE) | grep -o '^[a-z0-9]+') endif -ARCH ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/ppc64/') +ARCH ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/powerpc/') endif

# Without this, failed build products remain, with up-to-date timestamps, @@ -98,13 +98,13 @@ TEST_GEN_FILES += $(BINARIES_64) endif else

-ifneq (,$(findstring $(ARCH),ppc64)) +ifneq (,$(findstring $(ARCH),powerpc)) TEST_GEN_FILES += protection_keys endif

endif

-ifneq (,$(filter $(ARCH),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sparc64 x86_64)) +ifneq (,$(filter $(ARCH),arm64 ia64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64)) TEST_GEN_FILES += va_high_addr_switch TEST_GEN_FILES += virtual_address_range TEST_GEN_FILES += write_to_hugetlbfs _

Patches currently in -mm which might be from mpe@ellerman.id.au are

selftests-mm-fix-powerpc-arch-check.patch drm-amd-display-only-use-hard-float-not-altivec-on-powerpc.patch