From: Arnd Bergmann <arnd@kernel.org>
To: Russell King <linux@armlinux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>,
Abbott Liu <liuwenliang@huawei.com>,
Ard Biesheuvel <ardb@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Florian Fainelli <f.fainelli@gmail.com>,
Ahmad Fatoum <a.fatoum@pengutronix.de>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] ARM: export __memset/__memcpy/__memmove
Date: Fri, 20 Jun 2025 13:12:44 +0200 [thread overview]
Message-ID: <20250620111257.3365489-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
When KASAN is locally disabled for one file, the string functions
get redirected to internal helpers, but those are not actually exported,
so this only works in built-in code but fails for loadable modules:
ERROR: modpost: "__memset" [crypto/ecc.ko] undefined!
ERROR: modpost: "__memcpy" [crypto/ecc.ko] undefined!
Add the missig exports.
Fixes: d6d51a96c7d6 ("ARM: 9014/2: Replace string mem* functions for KASan")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/arm/kernel/armksyms.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 82e96ac83684..1ff50106afa4 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -83,10 +83,13 @@ EXPORT_SYMBOL(__raw_writesl);
EXPORT_SYMBOL(strchr);
EXPORT_SYMBOL(strrchr);
EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(__memset);
EXPORT_SYMBOL(__memset32);
EXPORT_SYMBOL(__memset64);
EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(__memcpy);
EXPORT_SYMBOL(memmove);
+EXPORT_SYMBOL(__memmove);
EXPORT_SYMBOL(memchr);
EXPORT_SYMBOL(mmioset);
--
2.39.5
next reply other threads:[~2025-06-20 11:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-20 11:12 Arnd Bergmann [this message]
2025-06-20 20:26 ` Linus Walleij
2025-06-22 20:29 ` Florian Fainelli
2025-06-23 6:27 ` Ahmad Fatoum
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