linux-kernel - [PATCH v2 4/6] selftests: Create variable INSTALL_HDR_PATH if need to install linux headers to $(OUTPUT)/usr

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Date:   Wed, 25 Mar 2020 22:01:31 +0800
From:   Xiaoyao Li <xiaoyao.li@...el.com>
To:     Shuah Khan <shuah@...nel.org>, Paolo Bonzini <pbonzini@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org, Xiaoyao Li <xiaoyao.li@...el.com>
Subject: [PATCH v2 4/6] selftests: Create variable INSTALL_HDR_PATH if need to install linux headers to $(OUTPUT)/usr

So sub TARGETs of selftest can know where the linux headers installed by
checking INSTALL_HDR_PATH.

Signed-off-by: Xiaoyao Li <xiaoyao.li@...el.com>
---
 tools/testing/selftests/lib.mk | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 78fb00bdf5c4..b51ff93da4de 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -35,6 +35,12 @@ top_srcdir ?= ../../../..
 include $(top_srcdir)/scripts/subarch.include
 ARCH		?= $(SUBARCH)
 
+ifndef KSFT_KHDR_INSTALL_DONE
+ifneq (1,$(DEFAULT_INSTALL_HDR_PATH))
+INSTALL_HDR_PATH := $(OUTPUT)/usr
+endif
+endif
+
 # set default goal to all, so make without a target runs all, even when
 # all isn't the first target in the file.
 .DEFAULT_GOAL := all
@@ -59,7 +65,7 @@ ifndef KSFT_KHDR_INSTALL_DONE
 ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
 	make --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
 else
-	make --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \
+	make --no-builtin-rules INSTALL_HDR_PATH=$(INSTALL_HDR_PATH) \
 		ARCH=$(ARCH) -C $(top_srcdir) headers_install
 endif
 endif
-- 
2.20.1