From 4fc72f509627da808b452eb1186282237c449b65 Mon Sep 17 00:00:00 2001
From: fengtao <[email protected]>
Date: Tue, 22 Mar 2022 22:22:22 +0800
Subject: [PATCH] fix setupmode not available in some machine

In some machine, there is no setupmode variable, so we should 
give setupmode a default vaule: setup_mode = 0

if we cannot get setupmode variable, we use setup_mode instead.

---
 grub-core/kern/efi/sb.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/grub-core/kern/efi/sb.c b/grub-core/kern/efi/sb.c
index c52ec62..f58fb13 100644
--- a/grub-core/kern/efi/sb.c
+++ b/grub-core/kern/efi/sb.c
@@ -50,6 +50,7 @@ grub_efi_get_secureboot (void)
   grub_uint8_t *moksbstate = NULL;
   grub_uint8_t secureboot = GRUB_EFI_SECUREBOOT_MODE_UNKNOWN;
   const char *secureboot_str = "UNKNOWN";
+  grub_uint8_t setup_mode = 0;
 
   status = grub_efi_get_variable ("SecureBoot", &efi_variable_guid,
 				  &size, (void **) &secboot);
@@ -67,9 +68,16 @@ grub_efi_get_secureboot (void)
 				  &size, (void **) &setupmode);
 
   if (status != GRUB_EFI_SUCCESS)
-    goto out;
+    {
+      grub_dprintf ("efi", "No SetupMode variable\n");
+    }
+  else
+    {
+      grub_dprintf ("efi", "SetupMode: %d\n", *setupmode);
+      setup_mode = *setupmode;
+    }
 
-  if ((*secboot == 0) || (*setupmode == 1))
+  if ((*secboot == 0) || (setup_mode == 1))
     {
       secureboot = GRUB_EFI_SECUREBOOT_MODE_DISABLED;
       goto out;
-- 
2.23.0