efi_loader: EFI_DEVICE_PATH_UTILITIES_PROTOCOL configurable
Allow the EFI_DEVICE_PATH_UTILITIES_PROTOCOL to be disabled via
configuration.
On systems that are very tight on U-Boot image size we may want to disable
the protocol. As it is required to run the UEFI Shell enable it by default.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index 227cfa5..038cdc9 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -208,6 +208,13 @@
The device path to text protocol converts device nodes and paths to
human readable strings.
+config EFI_DEVICE_PATH_UTIL
+ bool "Device path utilities protocol"
+ default y
+ help
+ The device path utilities protocol creates and manipulates device
+ paths and device nodes. It is required to run the EFI Shell.
+
config EFI_DT_FIXUP
bool "Device tree fixup protocol"
depends on !GENERATE_ACPI_TABLE
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index a6355d2..10b42e8 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -28,7 +28,7 @@
obj-y += efi_console.o
obj-y += efi_device_path.o
obj-$(CONFIG_EFI_DEVICE_PATH_TO_TEXT) += efi_device_path_to_text.o
-obj-y += efi_device_path_utilities.o
+obj-$(CONFIG_EFI_DEVICE_PATH_UTIL) += efi_device_path_utilities.o
ifeq ($(CONFIG_GENERATE_ACPI_TABLE),)
obj-y += efi_dt_fixup.o
endif
diff --git a/lib/efi_loader/efi_root_node.c b/lib/efi_loader/efi_root_node.c
index 8383fce..bfa57c9 100644
--- a/lib/efi_loader/efi_root_node.c
+++ b/lib/efi_loader/efi_root_node.c
@@ -58,9 +58,11 @@
&efi_guid_device_path_to_text_protocol,
(void *)&efi_device_path_to_text,
#endif
+#ifdef CONFIG_EFI_DEVICE_PATH_UTIL
/* Device path utilities protocol */
&efi_guid_device_path_utilities_protocol,
(void *)&efi_device_path_utilities,
+#endif
#ifdef CONFIG_EFI_DT_FIXUP
/* Device-tree fix-up protocol */
&efi_guid_dt_fixup_protocol,