linux-kernel - [PATCH ARM64] selftests, arm64: add kernel headers path for tags

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Date:   Wed,  4 Sep 2019 18:41:00 +0200
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     linux-arm-kernel@...ts.infradead.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Will Deacon <will.deacon@....com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Mark Rutland <mark.rutland@....com>,
        Cristian Marussi <cristian.marussi@....com>,
        Amit Kachhap <Amit.Kachhap@....com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Kostya Serebryany <kcc@...gle.com>,
        Evgeniy Stepanov <eugenis@...gle.com>,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH ARM64] selftests, arm64: add kernel headers path for tags_test

tags_test.c relies on PR_SET_TAGGED_ADDR_CTRL/PR_TAGGED_ADDR_ENABLE being
present in system headers. When this is not the case the build of this
test fails with undeclared identifier errors.

Fix by providing the path to the KSFT installed kernel headers in CFLAGS.

Reported-by: Cristian Marussi <cristian.marussi@....com>
Suggested-by: Cristian Marussi <cristian.marussi@....com>
Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
---
 tools/testing/selftests/arm64/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/arm64/Makefile b/tools/testing/selftests/arm64/Makefile
index a61b2e743e99..f9f79fb272f0 100644
--- a/tools/testing/selftests/arm64/Makefile
+++ b/tools/testing/selftests/arm64/Makefile
@@ -4,6 +4,7 @@
 ARCH ?= $(shell uname -m 2>/dev/null || echo not)
 
 ifneq (,$(filter $(ARCH),aarch64 arm64))
+CFLAGS += -I../../../../usr/include/
 TEST_GEN_PROGS := tags_test
 TEST_PROGS := run_tags_test.sh
 endif
-- 
2.23.0.187.g17f5b7556c-goog