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iommupt/kunit: Use if_changed_rule for the kunit

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Use if_changed_rule so rule_cc_o_c runs cmd_save_c_flags for the kunit
objects. Without the saved flags CONFIG_LTO_CLANG_THIN_DIST runs the
ThinLTO backend with no --target and generates x86_64 code from arm64
bitcode.

Fixes: 1dd4187f53 ("iommupt: Add a kunit test for Generic Page Table")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202610110841.120JzAJG-lkp@intel.com/
Assisted-by: LLM
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Jason Gunthorpe 2026-10-13 10:13:30 -03:00 committed by Joerg Roedel
parent 3ba149029a
commit 4bcfe29021
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/generic_pt/fmt/Makefile
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@ -25,6 +25,6 @@ $(eval $(foreach fmt,$(iommu_pt_fmt-m),$(call create_format,$(fmt),m)))
# with -DGENERIC_PT_KUNIT
$(obj)/kunit_iommu_%.o: $(src)/iommu_%.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(call if_changed_rule,cc_o_c)
obj-$(CONFIG_IOMMU_PT_KUNIT_TEST) += $(IOMMU_PT_KUNIT_TEST)