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-rw-r--r--include/linux/kmsan.h20
1 files changed, 11 insertions, 9 deletions
diff --git a/include/linux/kmsan.h b/include/linux/kmsan.h
index e38ae3c34618..c7ff3aefc5a1 100644
--- a/include/linux/kmsan.h
+++ b/include/linux/kmsan.h
@@ -134,11 +134,12 @@ void kmsan_kfree_large(const void *ptr);
* @page_shift: page_shift passed to vmap_range_noflush().
*
* KMSAN maps shadow and origin pages of @pages into contiguous ranges in
- * vmalloc metadata address range.
+ * vmalloc metadata address range. Returns 0 on success, callers must check
+ * for non-zero return value.
*/
-void kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end,
- pgprot_t prot, struct page **pages,
- unsigned int page_shift);
+int kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end,
+ pgprot_t prot, struct page **pages,
+ unsigned int page_shift);
/**
* kmsan_vunmap_kernel_range_noflush() - Notify KMSAN about a vunmap.
@@ -281,12 +282,13 @@ static inline void kmsan_kfree_large(const void *ptr)
{
}
-static inline void kmsan_vmap_pages_range_noflush(unsigned long start,
- unsigned long end,
- pgprot_t prot,
- struct page **pages,
- unsigned int page_shift)
+static inline int kmsan_vmap_pages_range_noflush(unsigned long start,
+ unsigned long end,
+ pgprot_t prot,
+ struct page **pages,
+ unsigned int page_shift)
{
+ return 0;
}
static inline void kmsan_vunmap_range_noflush(unsigned long start,