linux-kernel - [PATCH mm] arm64: kasan: fix MTE symbols exports

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Message-Id: <dd36936c3d99582a623c8f01345f618ed4c036dd.1612884525.git.andreyknvl@google.com>
Date:   Tue,  9 Feb 2021 16:32:30 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>
Cc:     Will Deacon <will.deacon@....com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Marco Elver <elver@...gle.com>,
        Peter Collingbourne <pcc@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Branislav Rankov <Branislav.Rankov@....com>,
        Kevin Brodsky <kevin.brodsky@....com>,
        Christoph Hellwig <hch@...radead.org>,
        kasan-dev@...glegroups.com, linux-arm-kernel@...ts.infradead.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH mm] arm64: kasan: fix MTE symbols exports

Only export MTE symbols when KASAN-KUnit tests are enabled.

Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>

---

Andrew, please squash this into:
"arm64: kasan: export MTE symbols for KASAN tests"
---
 arch/arm64/kernel/mte.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index a66c2806fc4d..788ef0c3a25e 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -113,13 +113,17 @@ void mte_enable_kernel(void)
 	sysreg_clear_set(sctlr_el1, SCTLR_ELx_TCF_MASK, SCTLR_ELx_TCF_SYNC);
 	isb();
 }
+#if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 EXPORT_SYMBOL_GPL(mte_enable_kernel);
+#endif
 
 void mte_set_report_once(bool state)
 {
 	WRITE_ONCE(report_fault_once, state);
 }
+#if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 EXPORT_SYMBOL_GPL(mte_set_report_once);
+#endif
 
 bool mte_report_once(void)
 {
-- 
2.30.0.478.g8a0d178c01-goog