All callers of hmm_range_fault depend on CONFIG_HMM_MIRROR, so don't bother with a stub. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- include/linux/hmm.h | 7 ------- 1 file changed, 7 deletions(-) diff --git a/include/linux/hmm.h b/include/linux/hmm.h index ddf9f7144c43..c102e359b59d 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -225,17 +225,10 @@ static inline uint64_t hmm_device_entry_from_pfn(const struct hmm_range *range, /* Don't fault in missing PTEs, just snapshot the current state. */ #define HMM_FAULT_SNAPSHOT (1 << 1) -#ifdef CONFIG_HMM_MIRROR /* * Please see Documentation/vm/hmm.rst for how to use the range API. */ long hmm_range_fault(struct hmm_range *range, unsigned int flags); -#else -static inline long hmm_range_fault(struct hmm_range *range, unsigned int flags) -{ - return -EOPNOTSUPP; -} -#endif /* * HMM_RANGE_DEFAULT_TIMEOUT - default timeout (ms) when waiting for a range -- 2.24.1