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-rw-r--r--lib/sbi/sbi_mpxy.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sbi/sbi_mpxy.c b/lib/sbi/sbi_mpxy.c
index a83cf16c..8daeb83d 100644
--- a/lib/sbi/sbi_mpxy.c
+++ b/lib/sbi/sbi_mpxy.c
@@ -28,7 +28,7 @@ static unsigned long mpxy_shmem_size = PAGE_SIZE;
static SBI_LIST_HEAD(mpxy_channel_list);
/** Invalid Physical Address(all bits 1) */
-#define INVALID_ADDR (-1U)
+#define INVALID_ADDR (-1UL)
/** MPXY Attribute size in bytes */
#define ATTR_SIZE (4)