[edk2-devel] [PATCH 3/3] RedfishPkg: fix searching for the BMC-exposed USB NIC

[Mike Maslenkin]

According to RedfishPkg/Readme.md document:
"The last byte of host-end USB NIC MAC address is the last byte of
BMC-end USB NIC MAC address minus 1."

It is necessary to subtract 1 from IpmiLanChannelMacAddress.

Cc: Abner Chang <abner.ch...@amd.com>
Cc: Nickle Wang <nick...@nvidia.com>
Cc: Igor Kulchytskyy <ig...@ami.com>
Signed-off-by: Mike Maslenkin <mike.maslen...@gmail.com>
---
 .../PlatformHostInterfaceBmcUsbNicLib.c                       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git 
a/RedfishPkg/Library/PlatformHostInterfaceBmcUsbNicLib/PlatformHostInterfaceBmcUsbNicLib.c
 
b/RedfishPkg/Library/PlatformHostInterfaceBmcUsbNicLib/PlatformHostInterfaceBmcUsbNicLib.c
index 95900579118b..20ec89d4fcb0 100644
--- 
a/RedfishPkg/Library/PlatformHostInterfaceBmcUsbNicLib/PlatformHostInterfaceBmcUsbNicLib.c
+++ 
b/RedfishPkg/Library/PlatformHostInterfaceBmcUsbNicLib/PlatformHostInterfaceBmcUsbNicLib.c
@@ -738,8 +738,8 @@ HostInterfaceIpmiCheckMacAddress (
              (VOID *)&IpmiLanChannelMacAddress.Addr,
              IpmiLanMacAddressSize - 1
              ) != 0) ||
-          (IpmiLanChannelMacAddress.Addr[IpmiLanMacAddressSize - 1] !=
-           *(UsbNicInfo->MacAddress + IpmiLanMacAddressSize - 1) - 1)
+          (IpmiLanChannelMacAddress.Addr[IpmiLanMacAddressSize - 1] - 1 !=
+           *(UsbNicInfo->MacAddress + IpmiLanMacAddressSize - 1))
           )
       {
         DEBUG ((DEBUG_REDFISH_HOST_INTERFACE, "    MAC address is not 
matched.\n"));
-- 
2.32.0 (Apple Git-132)