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-rw-r--r--include/linux/pfn_t.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h
index a3d90b9da18d..033fc7bbcefa 100644
--- a/include/linux/pfn_t.h
+++ b/include/linux/pfn_t.h
@@ -15,6 +15,12 @@
#define PFN_DEV (1ULL << (BITS_PER_LONG_LONG - 3))
#define PFN_MAP (1ULL << (BITS_PER_LONG_LONG - 4))
+#define PFN_FLAGS_TRACE \
+ { PFN_SG_CHAIN, "SG_CHAIN" }, \
+ { PFN_SG_LAST, "SG_LAST" }, \
+ { PFN_DEV, "DEV" }, \
+ { PFN_MAP, "MAP" }
+
static inline pfn_t __pfn_to_pfn_t(unsigned long pfn, u64 flags)
{
pfn_t pfn_t = { .val = pfn | (flags & PFN_FLAGS_MASK), };

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