From: Christoph Hellwig <hch@lst.de>
Date: Mon, 16 Mar 2020 14:53:06 +0100
Subject: mm/hmm: don't provide a stub for hmm_range_fault()
Git-commit: ddfaed17a779ddb728e5534a87596950842d6b04
Patch-mainline: v5.7-rc1
References: jsc#SLE-16387
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>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
include/linux/hmm.h | 7 -------
1 file changed, 7 deletions(-)
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -225,17 +225,10 @@ static inline uint64_t hmm_device_entry_
/* 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