From nobody Thu Oct 9 02:52:21 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C1496229B27 for ; Fri, 20 Jun 2025 11:13:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750417982; cv=none; b=Iq3J7GbTbZKG1vkrjhRj5Bb9cQDeBL9Xv3Ny1IzzzF2euqPfh/wofmv3tL/941XPOAH2tDqEJFVOmM1sObm6YzaGBd5VdKwFctrC6uBZQBQ1ikTOp7aBVZ0ZuZQguns5o5378578uTKWVF4rq2ijKoQOGpUbXhappopADHfll84= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750417982; c=relaxed/simple; bh=Z+FfhbY2dIQj1OgYnBauCW6kLhQRKO0ds9VLINPnkqc=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=OFZXpco1pfFiDkwvPGmUvZINgnX7U5ighNIaxg2k1cIcLk6Vo1iND/JCIEH2qnSPonX08DKNbaWaha7VpBNBTJHQEoVD6XudnFZqmjyrs7HkK9GhFCnLi6NLWCHD7I1KNU06iujPm+qB9PbsoTYpBPYHoNYZ16IRp7WWNmXDWVo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BDyuj5Ew; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BDyuj5Ew" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD33AC4CEE3; Fri, 20 Jun 2025 11:13:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750417982; bh=Z+FfhbY2dIQj1OgYnBauCW6kLhQRKO0ds9VLINPnkqc=; h=From:To:Cc:Subject:Date:From; b=BDyuj5EwAviEGIEXuSCZoHjBq2v3OJqRI81UdNRoIs3x6p2SKoHURMU6pCVK+VuIr PajUfp+Qg5iXaO11tioHL7nHhYflpctwSW6WBJWdv2M5toGaiyb8g5cT1optX3reHK UTDNEClf1FJnA3VCEfkA9Bls/jNtm1T0q7CSNXa4bv3LQU0nDyadFoTLm14UpuPIZB jzfU2iFmNOtJ4yCXzklVHh1UxxUr7uAsjPDYLW2r2iV2VJEvHdW03xtbGWvpUv6kvJ VqsnqG2j0xf4Q1wy9RO0HgPdFJK8FaBubZbQ8NDSEGmPC0KW4saB9qlukrwrYsfBZC /UJlW2X1sLPYQ== From: Arnd Bergmann To: Russell King Cc: Arnd Bergmann , Abbott Liu , Ard Biesheuvel , Linus Walleij , Florian Fainelli , Ahmad Fatoum , 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 Message-Id: <20250620111257.3365489-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Arnd Bergmann 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 Acked-by: Florian Fainelli Reviewed-by: Ahmad Fatoum Reviewed-by: Linus Walleij --- 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); =20 EXPORT_SYMBOL(mmioset); --=20 2.39.5