[PATCH] sbi: mpxy: define INVALID_ADDR using unsigned long width
Himanshu Chauhan <[email protected]>
| Newsgroups | org.infradead.lists.opensbi |
|---|---|
| Message-ID | <[email protected]> |
INVALID_ADDR is used as an all-ones physical address sentinel.
Using -1U only guarantees 32-bit width, so on platforms where
unsigned long is wider it may not expand to all ones after assignment.
Use -1ULL so the conversion to unsigned long preserves an all-ones
bit pattern across supported widths.
Fixes: 7939bf1329eb ("lib: sbi: Add SBI Message Proxy (MPXY) framework")
Signed-off-by: Himanshu Chauhan <[email protected]>
---
lib/sbi/sbi_mpxy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/sbi/sbi_mpxy.c b/lib/sbi/sbi_mpxy.c
index a83cf16c..79851097 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 (-1ULL)
/** MPXY Attribute size in bytes */
#define ATTR_SIZE (4)
--
2.43.0
--
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