From 000e235101136ed3d2365abbf0bec50e62e95389 Mon Sep 17 00:00:00 2001
From: Gary Ching-Pang Lin <glin@suse.com>
Date: Tue, 2 Oct 2012 11:55:44 +0800
Subject: [PATCH] Use LibDeleteVariable in gnu-efi

---
 MokManager.c | 14 ++------------
 shim.c       | 12 +-----------
 2 files changed, 3 insertions(+), 23 deletions(-)

diff --git a/MokManager.c b/MokManager.c
index 89c0967..8a2ec21 100644
--- a/MokManager.c
+++ b/MokManager.c
@@ -39,16 +39,6 @@ static EFI_STATUS get_variable (CHAR16 *name, EFI_GUID guid, UINT32 *attributes,
 	return efi_status;
 }
 
-static EFI_STATUS delete_variable (CHAR16 *name, EFI_GUID guid)
-{
-	EFI_STATUS efi_status;
-
-	efi_status = uefi_call_wrapper(RT->SetVariable, 5, name, &guid,
-				       0, 0, (UINT8 *)NULL);
-
-	return efi_status;
-}
-
 static EFI_INPUT_KEY get_keystroke (void)
 {
 	EFI_INPUT_KEY key;
@@ -671,12 +661,12 @@ static EFI_STATUS check_mok_request(EFI_HANDLE image_handle)
 	}
 error:
 	if (MokNew) {
-		if (delete_variable(L"MokNew", shim_lock_guid) != EFI_SUCCESS) {
+		if (LibDeleteVariable(L"MokNew", &shim_lock_guid) != EFI_SUCCESS) {
 			Print(L"Failed to delete MokNew\n");
 		}
 		FreePool (MokNew);
 	}
-	delete_variable(L"MokAuth", shim_lock_guid);
+	LibDeleteVariable(L"MokAuth", &shim_lock_guid);
 
 	return EFI_SUCCESS;
 }
diff --git a/shim.c b/shim.c
index 95c3e54..479007b 100644
--- a/shim.c
+++ b/shim.c
@@ -92,16 +92,6 @@ static EFI_STATUS get_variable (CHAR16 *name, EFI_GUID guid, UINT32 *attributes,
 	return efi_status;
 }
 
-static EFI_STATUS delete_variable (CHAR16 *name, EFI_GUID guid)
-{
-	EFI_STATUS efi_status;
-
-	efi_status = uefi_call_wrapper(RT->SetVariable, 5, name, &guid,
-				       0, 0, (UINT8 *)NULL);
-
-	return efi_status;
-}
-
 static MokListNode *build_mok_list(UINT32 num, void *Data, UINTN DataSize) {
 	MokListNode *list;
 	int i, remain = DataSize;
@@ -612,7 +602,7 @@ static EFI_STATUS verify_buffer (char *data, int datasize,
 
 	if (attributes & EFI_VARIABLE_RUNTIME_ACCESS) {
 		Print(L"MokList is compromised!\nErase all keys in MokList!\n");
-		if (delete_variable(L"MokList", shim_lock_guid) != EFI_SUCCESS) {
+		if (LibDeleteVariable(L"MokList", &shim_lock_guid) != EFI_SUCCESS) {
 			Print(L"Failed to erase MokList\n");
 		}
 		status = EFI_ACCESS_DENIED;