linux-kernel - [PATCH v3 mm 12/13] arm64: kasan: export MTE symbols for KASAN tests

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Message-Id: <14da91876a25a6ae5b2096f7c06ebbc6deb3cf6b.1612546384.git.andreyknvl@google.com>
Date:   Fri,  5 Feb 2021 18:34:46 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        Marco Elver <elver@...gle.com>
Cc:     Will Deacon <will.deacon@....com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Peter Collingbourne <pcc@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Branislav Rankov <Branislav.Rankov@....com>,
        Kevin Brodsky <kevin.brodsky@....com>,
        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 v3 mm 12/13] arm64: kasan: export MTE symbols for KASAN tests

Export mte_enable_kernel() and mte_set_report_once() to fix:

ERROR: modpost: "mte_enable_kernel" [lib/test_kasan.ko] undefined!
ERROR: modpost: "mte_set_report_once" [lib/test_kasan.ko] undefined!

Reviewed-by: Catalin Marinas <catalin.marinas@....com>
Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
---
 arch/arm64/kernel/mte.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index 203108d51d40..a66c2806fc4d 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -113,11 +113,13 @@ void mte_enable_kernel(void)
 	sysreg_clear_set(sctlr_el1, SCTLR_ELx_TCF_MASK, SCTLR_ELx_TCF_SYNC);
 	isb();
 }
+EXPORT_SYMBOL_GPL(mte_enable_kernel);
 
 void mte_set_report_once(bool state)
 {
 	WRITE_ONCE(report_fault_once, state);
 }
+EXPORT_SYMBOL_GPL(mte_set_report_once);
 
 bool mte_report_once(void)
 {
-- 
2.30.0.365.g02bc693789-goog