From 3fb97e267a5e136d8386a7cb1d5b4fe63af518eb Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Tue, 18 Oct 2016 15:49:40 +0200
Subject: [PATCH] efi_loader: Revert device_handle to disk after net boot

When you boot an efi payload from network, then exit that payload
and load another payload from disk afterwords, the disk payload will
currently see the network device as its boot path.

This breaks grub2 for example which tries to find its modules based
on the path it was loaded from.

This patch fixes that issue by always reverting to disk paths if we're
not in the network boot. That way the data structures after a network
boot look the same as before.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 cmd/bootefi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index 8714666c03..c8079c4fe8 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -207,6 +207,8 @@ static unsigned long do_bootefi_exec(void *efi, void *fdt)
 
 	if (!memcmp(bootefi_device_path[0].str, "N\0e\0t", 6))
 		loaded_image_info.device_handle = nethandle;
+	else
+		loaded_image_info.device_handle = bootefi_device_path;
 #endif
 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
 	efi_smbios_register();
-- 
2.39.5