sbi: mpxy: define INVALID_ADDR using unsigned long width
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 -1UL 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 <himanshu.chauhan@oss.qualcomm.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260521052838.2174588-1-himanshu.chauhan@oss.qualcomm.com
Signed-off-by: Anup Patel <anup@brainfault.org>
diff --git a/lib/sbi/sbi_mpxy.c b/lib/sbi/sbi_mpxy.c
index a83cf16..8daeb83 100644
--- a/lib/sbi/sbi_mpxy.c
+++ b/lib/sbi/sbi_mpxy.c
@@ -28,7 +28,7 @@
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)
