[PATCH v2] xen/efi: Do not undefine not defined macro

[Frediano Ziglio <frediano.ziglio@xxxxxxxxx>]

The "buffer" macro is not defined.

Fixes: 59e087bf6a9c ("xen/keyhandler: Drop keyhandler_scratch")
Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
Acked-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
---
Changes since v1:
- fixed commit message;
- added Acked-by.
---
 xen/common/efi/boot.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index 1a181ba933..c5625ccecf 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -556,7 +556,6 @@ static EFI_FILE_HANDLE __init get_parent_handle(const 
EFI_LOADED_IMAGE *loaded_i
     else
         *leaf = buffer;
 #undef BUFFERSIZE
-#undef buffer
 
     return dir_handle;
 }
-- 
2.43.0