From: "Dimitrije Pavlov" <Dimitrije.Pavlov@arm.com>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
Jiewen Yao <jiewen.yao@intel.com>,
Liming Gao <gaoliming@byosoft.com.cn>,
Sunny Wang <Sunny.Wang@arm.com>,
Jeff Booher-Kaeding <Jeff.Booher-Kaeding@arm.com>,
Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Subject: [PATCH v1 1/1] OvmfPkg/VirtioNetDxe: Check ChildHandle argument in GetControllerName
Date: Wed, 17 Aug 2022 09:35:03 -0500 [thread overview]
Message-ID: <20220817143503.3279277-1-dimitrije.pavlov@arm.com> (raw)
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+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Sunny Wang <Sunny.Wang@arm.com>
Cc: Jeff Booher-Kaeding <Jeff.Booher-Kaeding@arm.com>
Cc: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Signed-off-by: Dimitrije Pavlov <Dimitrije.Pavlov@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
next reply other threads:[~2022-08-17 14:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-17 14:35 Dimitrije Pavlov [this message]
2022-08-17 20:44 ` [PATCH v1 1/1] OvmfPkg/VirtioNetDxe: Check ChildHandle argument in GetControllerName Samer El-Haj-Mahmoud
2022-08-19 14:46 ` Sunny Wang
2022-09-28 13:32 ` Samer El-Haj-Mahmoud
2022-10-10 10:18 ` [edk2-devel] " Ard Biesheuvel
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