From 960f4a54b909c090c44a4dc7d487279fe7271a09 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 20 Oct 2021 12:11:16 -0700
Subject: [PATCH] nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST
Git-commit: 4a089e95b4d6bb625044d47aed0c442a8f7bd093
Patch-mainline: v5.15
References: stable-5.14.16

commit 4a089e95b4d6bb625044d47aed0c442a8f7bd093 upstream.

nios2:allmodconfig builds fail with

Make[1]: *** No rule to make target 'arch/nios2/boot/dts/""',	needed by 'arch/nios2/boot/dts/built-in.a'.  Stop.
Make: [Makefile:1868: arch/nios2/boot/dts] Error 2 (ignored)

This is seen with compile tests since those enable NIOS2_DTB_SOURCE_BOOL,
which in turn enables NIOS2_DTB_SOURCE. This causes the build error
because the default value for NIOS2_DTB_SOURCE is an empty string.
Disable NIOS2_DTB_SOURCE_BOOL for compile tests to avoid the error.

Fixes: 2fc8483fdcde ("nios2: Build infrastructure")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 arch/nios2/platform/Kconfig.platform | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/nios2/platform/Kconfig.platform b/arch/nios2/platform/Kconfig.platform
index 9e32fb7f3d4c..e849daff6fd1 100644
--- a/arch/nios2/platform/Kconfig.platform
+++ b/arch/nios2/platform/Kconfig.platform
@@ -37,6 +37,7 @@ config NIOS2_DTB_PHYS_ADDR
 
 config NIOS2_DTB_SOURCE_BOOL
 	bool "Compile and link device tree into kernel image"
+	depends on !COMPILE_TEST
 	help
 	  This allows you to specify a dts (device tree source) file
 	  which will be compiled and linked into the kernel image.
-- 
2.26.2