[PATCH 1/1] efi_loader: avoid multiple local copies of lf2_initrd_guid

[Heinrich Schuchardt]

Create the GUID as a global variable.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 cmd/efidebug.c                   | 3 +--
 include/efi_load_initrd.h        | 1 +
 lib/efi_loader/efi_helper.c      | 5 +++++
 lib/efi_loader/efi_load_initrd.c | 3 +--
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/cmd/efidebug.c b/cmd/efidebug.c
index 33a5135ee1..a977ca9c72 100644
--- a/cmd/efidebug.c
+++ b/cmd/efidebug.c
@@ -1144,7 +1144,6 @@ static void show_efi_boot_opt_data(u16 *varname16, void *data, size_t *size)
 	struct efi_device_path *initrd_path = NULL;
 	struct efi_load_option lo;
 	efi_status_t ret;
-	const efi_guid_t lf2_initrd_guid = EFI_INITRD_MEDIA_GUID;

 	ret = efi_deserialize_load_option(&lo, data, size);
 	if (ret != EFI_SUCCESS) {
@@ -1165,7 +1164,7 @@ static void show_efi_boot_opt_data(u16 *varname16, void *data, size_t *size)

 	printf("  file_path: %pD\n", lo.file_path);

-	initrd_path = efi_dp_from_lo(&lo, &lf2_initrd_guid);
+	initrd_path = efi_dp_from_lo(&lo, &efi_lf2_initrd_guid);
 	if (initrd_path) {
 		printf("  initrd_path: %pD\n", initrd_path);
 		efi_free_pool(initrd_path);
diff --git a/include/efi_load_initrd.h b/include/efi_load_initrd.h
index 478ae807c6..be5d5a7acb 100644
--- a/include/efi_load_initrd.h
+++ b/include/efi_load_initrd.h
@@ -16,6 +16,7 @@
 #define EFI_INITRD_MEDIA_GUID \
 	EFI_GUID(0x5568e427, 0x68fc, 0x4f3d, \
 		 0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68)
+extern const efi_guid_t efi_lf2_initrd_guid;

 struct efi_initrd_dp {
 	struct efi_device_path_vendor vendor;
diff --git a/lib/efi_loader/efi_helper.c b/lib/efi_loader/efi_helper.c
index 89833de222..485384b7ee 100644
--- a/lib/efi_loader/efi_helper.c
+++ b/lib/efi_loader/efi_helper.c
@@ -13,6 +13,11 @@
 #include <efi_loader.h>
 #include <efi_variable.h>

+#if defined(CONFIG_CMD_EFIDEBUG) || defined(CONFIG_EFI_LOAD_FILE2_INITRD)
+/* GUID used by Linux to identify the LoadFile2 protocol with the initrd */
+const efi_guid_t efi_lf2_initrd_guid = EFI_INITRD_MEDIA_GUID;
+#endif
+
 /**
  * efi_create_current_boot_var() - Return Boot#### name were #### is replaced by
  *			           the value of BootCurrent
diff --git a/lib/efi_loader/efi_load_initrd.c b/lib/efi_loader/efi_load_initrd.c
index e2a8063023..c5e6652e66 100644
--- a/lib/efi_loader/efi_load_initrd.c
+++ b/lib/efi_loader/efi_load_initrd.c
@@ -52,7 +52,6 @@ static efi_handle_t efi_initrd_handle;
  */
 static efi_status_t get_initrd_fp(struct efi_device_path **initrd_fp)
 {
-	const efi_guid_t lf2_initrd_guid = EFI_INITRD_MEDIA_GUID;
 	struct efi_device_path *dp = NULL;

 	/*
@@ -65,7 +64,7 @@ static efi_status_t get_initrd_fp(struct efi_device_path **initrd_fp)
 	 * We can then use this specific return value and not install the
 	 * protocol, while allowing the boot to continue
 	 */
-	dp = efi_get_dp_from_boot(lf2_initrd_guid);
+	dp = efi_get_dp_from_boot(efi_lf2_initrd_guid);
 	if (!dp)
 		return EFI_INVALID_PARAMETER;

--
2.30.2