linux-kernel - [PATCH v3] nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE

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Message-Id: <20211021143315.3139952-1-linux@roeck-us.net>
Date:   Thu, 21 Oct 2021 07:33:15 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Dinh Nguyen <dinguyen@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: [PATCH v3] nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST

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")
Reviewed-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
v3: Added Fixes: and Reviewed-by: tags
v2: Add build error message to commit description

 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.
-- 
2.33.0