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authorChristoph Hellwig <hch@lst.de>2020-03-16 14:53:06 +0100
committerJason Gunthorpe <jgg@mellanox.com>2020-03-26 14:33:37 -0300
commitddfaed17a779ddb728e5534a87596950842d6b04 (patch)
tree05e888548da7d3a161b34f3449d859ade8855178
parent24cee8ab41eec51ea4cabd19c311719038084648 (diff)
mm/hmm: don't provide a stub for hmm_range_fault()
All callers of hmm_range_fault depend on CONFIG_HMM_MIRROR, so don't bother with a stub. Link: https://lore.kernel.org/r/20200316135310.899364-2-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Zi Yan <ziy@nvidia.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
-rw-r--r--include/linux/hmm.h7
1 files changed, 0 insertions, 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