On Thu, 2023-01-12 at 13:36 -0700, Shuah Khan wrote: > On 1/9/23 11:07, Gerd Bayer wrote: > > With this change dma_map_benchmark compiles with just the obvious > > warning > > about uapi usage on ARCH=x86, arm64, and s390 and runs on > > ARCH=s390. > > On Linux 6.2-rc3, dma_map_benchmark compiles just fine. You do > have to do "make headers_install" first as kselftest depends > on headers being installed in the repo. > > Please let me know if you are seeing compile problems even after > installing headers. > > thanks, > -- Shuah Hi Shuah, thank you for this clarification. Once I run "make headers_install" before attempting to build the dma_benchmark_test executable with make -C tools/testing/selftests/ TARGETS="dma" everything works out nicely - even w/o my patch. I have to apologize for creating this fuzz. I was not aware that one of the dependencies for "make kselftest" was "make headers_install", since I was going straight for the interactive "dma_benchmark_test" control tool of the test that is implemented in kernel/dma/benchmark_test.c. I didn't intend to run the full "make kselftest" suite, primarily since I have distinct test and build systems - most often building cross- arch, even. So please, disregard the PATCH. Thank you, Gerd
