[XS] Change in coreboot[main]: libpayload: Use unsigned integer for PDG_MASK

[Arthur Heymans (Code Review)]

Arthur Heymans has submitted this change. ( https://review.coreboot.org/c/coreboot/+/84007?usp=email )

Change subject: libpayload: Use unsigned integer for PDG_MASK
......................................................................

libpayload: Use unsigned integer for PDG_MASK

The clang compiler warns about undefined behavior about shifting signed
integers.

Change-Id: Ic4ce64207393ec4a8d6b188b35e0f436342826de
Signed-off-by: Arthur Heymans 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84007
Tested-by: build bot (Jenkins) 
Reviewed-by: Angel Pons 
---
M payloads/libpayload/arch/arm/virtual.c
1 file changed, 1 insertion(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Angel Pons: Looks good to me, approved

diff --git a/payloads/libpayload/arch/arm/virtual.c b/payloads/libpayload/arch/arm/virtual.c
index 867a43b..cfc7af1 100644
--- a/payloads/libpayload/arch/arm/virtual.c
+++ b/payloads/libpayload/arch/arm/virtual.c
@@ -71,7 +71,7 @@
 #define SECTION_SHIFT	30
 #define BLOCK_SHIFT	21
 #define PAGE_SHIFT	12
-#define PGD_MASK	(~0 << PAGE_SHIFT)
+#define PGD_MASK	(~0u << PAGE_SHIFT)

static pmd_t *ttb_buff = 0;
 static uintptr_t work_block;