From: Andrew Hamilton <adhamilt@gmail.com>
Date: Sat, 25 Oct 2025 15:53:40 +0000 (-0500)
Subject: loader/efi/linux: Fix compile error with Clang
X-Git-Tag: grub-2.14-rc1~3
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c602035a9f078df532df8da69e5b43652a9ad600;p=thirdparty%2Fgrub.git

loader/efi/linux: Fix compile error with Clang

Clang will produce a warning, which is treated as an error, that
"vendor_defined_data" is uninitialized. This is a "zero length" array
member of this struct. Add conditional compile pragma to allow this to
compile with Clang.

Signed-off-by: Andrew Hamilton <adhamilt@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---

diff --git a/grub-core/loader/efi/linux.c b/grub-core/loader/efi/linux.c
index 4f5589862..ded507cd5 100644
--- a/grub-core/loader/efi/linux.c
+++ b/grub-core/loader/efi/linux.c
@@ -55,6 +55,14 @@ static bool initrd_use_loadfile2 = false;
 static grub_guid_t load_file2_guid = GRUB_EFI_LOAD_FILE2_PROTOCOL_GUID;
 static grub_guid_t device_path_guid = GRUB_EFI_DEVICE_PATH_GUID;
 
+/*
+ * Clang will produce a warning for missing initializer for the
+ * zero-length array "vendor_defined_data" inside this structure.
+ * Suppress this warning which is treated as an error.
+ */
+#ifdef __clang__
+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
+#endif
 static initrd_media_device_path_t initrd_lf2_device_path = {
   {
     {