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Subject[PATCH] mm: shmem: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
This code was tested by compilation only (GCC 7.2.0 was used).
Please, verify if the actual intention of the code is to fall through.

mm/shmem.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/mm/shmem.c b/mm/shmem.c
index 9a981f0..fc6f3fd 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -4098,6 +4098,7 @@ bool shmem_huge_enabled(struct vm_area_struct *vma)
if (i_size >= HPAGE_PMD_SIZE &&
i_size >> PAGE_SHIFT >= off)
return true;
+ /* fall through */
case SHMEM_HUGE_ADVISE:
/* TODO: implement fadvise() hints */
return (vma->vm_flags & VM_HUGEPAGE);
--
2.7.4
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