[coreboot-gerrit] Change in coreboot[master]: x86: pci_io_cfg: Make constant unsigned long to fix out of bounds shift

[Paul Menzel (Code Review)]

Paul Menzel has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/51292 )

Change subject: x86: pci_io_cfg: Make constant unsigned long to fix out of bounds shift
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x86: pci_io_cfg: Make constant unsigned long to fix out of bounds shift

Fix the error below when building coreboot with `CONFIG_UBSAN=y`.

PCI: pci_scan_bus for bus 00
    shift out of bounds src/arch/x86/include/arch/pci_io_cfg.h:13:20
    ubsan: unrecoverable error.

Change-Id: Ib05d225ab9f22078d765009b4ee6ef0c63231eed
Found-by: UBSAN
Signed-off-by: Paul Menzel 
---
M src/arch/x86/include/arch/pci_io_cfg.h
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/92/51292/1

diff --git a/src/arch/x86/include/arch/pci_io_cfg.h b/src/arch/x86/include/arch/pci_io_cfg.h
index 61dd106..5e9761e 100644
--- a/src/arch/x86/include/arch/pci_io_cfg.h
+++ b/src/arch/x86/include/arch/pci_io_cfg.h
@@ -10,7 +10,7 @@
 static __always_inline
 uint32_t pci_io_encode_addr(pci_devfn_t dev, uint16_t reg)
 {
-	uint32_t addr = 1 << 31;
+	uint32_t addr = 1UL << 31;

addr |= dev >> 4;
    addr |= reg & 0xfc;