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On 8/31/26 10:22 AM, Lance Yang wrote: > > On Mon, Aug 31, 2026 at 09:50:56AM +0530, Sarthak Sharma wrote: > [...] >> diff --git a/tools/testing/selftests/mm/vm_util.h b/tools/testing/selftests/mm/vm_util.h >> index 9a49af88702e..62f6f5b42649 100644 >> --- a/tools/testing/selftests/mm/vm_util.h >> +++ b/tools/testing/selftests/mm/vm_util.h >> @@ -166,11 +166,11 @@ int unpoison_memory(unsigned long pfn); >> #define PAGEMAP_PRESENT(ent) (((ent) & (1ull << 63)) != 0) >> #define PAGEMAP_PFN(ent) ((ent) & ((1ull << 55) - 1)) >> >> -void write_file(const char *path, const char *buf, size_t buflen); >> +int write_file(const char *path, const char *buf, size_t buflen); >> int read_file(const char *path, char *buf, size_t buflen); >> -unsigned long read_num(const char *path); >> -void write_num(const char *path, unsigned long num); >> -void write_num_ignore_einval(const char *path, unsigned long num); >> +int read_num(const char *path, unsigned long *num); >> +int write_num(const char *path, unsigned long num); >> +int write_num_ignore_einval(const char *path, unsigned long num); > > Ouch ... > > Looks like this conversion misses hugetlb-soft-offline.c ... > > TEST_GEN_FILES += hugetlb-soft-offline > > int main(int argc, char **argv) > { > ... > orig_enable_soft_offline = read_num(ENABLE_SOFT_OFFLINE_PATH); Thanks for pointing it out. This call was added very recently, and I missed to update it while rebasing. I'll fix this. > ... > } > > And the compiler isn't happy: > > tools/testing/selftests/mm/hugetlb-soft-offline.c:199:36: > error: too few arguments to function 'read_num' > 199 | orig_enable_soft_offline = read_num(ENABLE_SOFT_OFFLINE_PATH); > tools/lib/mm/file_utils.h:9:5: note: declared here > 9 | int read_num(const char *path, unsigned long *num); > > Cheers, Lance > > [...]