Per the UEFI specification, a device driver implementation should return
EFI_UNSUPPORTED if the ChildHandle argument in
EFI_COMPONENT_NAME2_PROTOCOL.GetControllerName() is not NULL.
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Sunny Wang <sunny.w...@arm.com>
Cc: Jeff Booher-Kaeding <jeff.booher-kaed...@arm.com>
Cc: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com>
Signed-off-by: Dimitrije Pavlov <dimitrije.pav...@arm.com>
---
OvmfPkg/VirtioNetDxe/ComponentName.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/OvmfPkg/VirtioNetDxe/ComponentName.c
b/OvmfPkg/VirtioNetDxe/ComponentName.c
index e340ca2f8fe4..718096630f6f 100644
--- a/OvmfPkg/VirtioNetDxe/ComponentName.c
+++ b/OvmfPkg/VirtioNetDxe/ComponentName.c
@@ -129,6 +129,13 @@ VirtioNetGetControllerName (
return EFI_INVALID_PARAMETER;
}
+ //
+ // This is a device driver, so ChildHandle must be NULL.
+ //
+ if (ChildHandle != NULL) {
+ return EFI_UNSUPPORTED;
+ }
+
//
// confirm that the device is managed by this driver, using the VirtIo
// Protocol
--
2.37.2
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