[U-Boot] [PATCH v3 08/16] efi_loader: debug output installed device path

[Heinrich Schuchardt]

When a device path protocol is installed write the device
path to the console in debug mode.

For printing the new macro EFI_PRINT is used, which can be reused
for future diagnostic output.

Remove unused EFI_PRINT_GUID macro

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
v3
	Avoid memory leak. Use printf("%pD") for device path output.
v2
	Remove unused EFI_PRINT_GUID macro.
	Use new macro EFI_PRINT to output device path.
---
 include/efi_loader.h          | 7 ++++---
 lib/efi_loader/efi_boottime.c | 2 ++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/efi_loader.h b/include/efi_loader.h
index 637e6e166d..4198329230 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -69,10 +69,11 @@ const char *__efi_nesting_dec(void);
 	} while(0)
 
 /*
- * Write GUID
+ * Write an indented message with EFI prefix
  */
-#define EFI_PRINT_GUID(txt, guid) ({ \
-	debug("%sEFI: %s %pUl\n", __efi_nesting(), txt, guid); \
+#define EFI_PRINT(format, ...) ({ \
+	debug("%sEFI: " format, __efi_nesting(), \
+		##__VA_ARGS__); \
 	})
 
 extern struct efi_runtime_services efi_runtime_services;
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 44c9da0a7c..d232ed2c70 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -876,6 +876,8 @@ efi_status_t efi_add_protocol(const void *handle, const efi_guid_t *protocol,
 	handler->protocol_interface = protocol_interface;
 	INIT_LIST_HEAD(&handler->open_infos);
 	list_add_tail(&handler->link, &efiobj->protocols);
+	if (!guidcmp(&efi_guid_device_path, protocol))
+		EFI_PRINT("installed device path '%pD'\n", protocol_interface);
 	return EFI_SUCCESS;
 }
 
-- 
2.14.2