From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C839FC31E57 for ; Mon, 17 Jun 2019 10:42:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A7B7220833 for ; Mon, 17 Jun 2019 10:42:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727482AbfFQKmy (ORCPT ); Mon, 17 Jun 2019 06:42:54 -0400 Received: from mout.kundenserver.de ([212.227.17.24]:55387 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726427AbfFQKmy (ORCPT ); Mon, 17 Jun 2019 06:42:54 -0400 Received: from threadripper.lan ([149.172.19.189]) by mrelayeu.kundenserver.de (mreue107 [212.227.15.145]) with ESMTPA (Nemesis) id 1M1qfu-1hf0xP2jpA-002IOT; Mon, 17 Jun 2019 12:42:43 +0200 From: Arnd Bergmann To: Catalin Marinas , Will Deacon , Dave Martin Cc: Ard Biesheuvel , Arnd Bergmann , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Peter Maydell , Alan Hayward , Julien Grall , Marc Zyngier , Mark Rutland , Andrew Murray , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64/sve: fix genksyms generation Date: Mon, 17 Jun 2019 12:42:11 +0200 Message-Id: <20190617104237.2082388-1-arnd@arndb.de> X-Mailer: git-send-email 2.20.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:GHkVA1Dy87IfWvGaT0UvEAty23wZsSPrrw8mvVuU4V2xwnZ0ZPo 9ZiXJCiqGGqG/xdGF30QoA7sBAKCqe0Pwd3K3a5OjVyy6rre9s+3p8O7VYXYstPxVnPUnsH iSVy5mih+qkefBykZt4Z0kc2qMoapAtTT7xZAbCSpw1L/zn0QKkkFGcRSU73n9KD5aE2AO1 hSg0ljYQEjCHA0J5TsSYw== X-UI-Out-Filterresults: notjunk:1;V03:K0:lKeDETOU9i8=:UKR4EOC8S7Ji6Nbp3eTSLo TjYZ2W/CoFLoPLgh1VF7zGGB6JL0jnXjtT38e4nUexrjXcHeNe7UadgYwjdp0Gt/4IRYNqJkw +3hyOV8HReErfhFrpThfoUp4RZzFgRifngEBsMsVDd+VaQL1pQ4ucnDlw6GWXMAb2WYbFzf2K yh5y/Oh/IYD7QjqJO6nEsvebSte7CA3yzNd/AebLy4XnzqJoi1wpGWmBmWSo9QhPF1U5V7ycz VXjAQrKgA4Fv2pA3ta0vfSLXUQ9jYSiJvNwqQ5aDlaoUc+2XmMDx2reiZKSbIdc9qJ8TyG18D 8Q4CrPqjcceEYxfrKfZRSKlUZs5Bjtv4kjcGo2aGA71Vdd0UiVROH3DgLy0VtoAi+1LjBMx8x xpPvkM+GshK8z322rH7gcKdSkKrCsYsGXcpFAvQEikZg/yHeZGS+ijejuVG9XMeDerfZXB/IX tKxhiA73pv4rX7s7jbWZAR7/f8mIZ8eWXH9QjVJiRaC9BfpUnlYWBr+G2xOCx3z9eGhrrbxuf 2oUh6m3hZq4SHf4EWt/gXOKjxVau2WhM0gsBNpV0HhwhSN6avxd3NbZcP/GeS1NvSO/g1oy7f B8mob4b1LzoqMXXRqcsbsE4ERRvYlRpJHNy79n3HiqzEA8QiUl9TXjCSix6O7pwzDyxQ/+VM+ k44uIm6jupiwYmbXI96yFVKLn//KijI1hk9wcu8pDNIXGQ54MvkgE318qxNba/IEkDluAkOJQ W+6rqShXIQwyNmzTrbQs/fz4NdOUi/WmWpChVA== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org genksyms does not understand __uint128_t, so we get a build failure in the fpsimd module when it cannot export a symbol right: WARNING: EXPORT symbol "kernel_neon_begin" [vmlinux] version generation failed, symbol will not be versioned. /home/arnd/cross/x86_64/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld: arch/arm64/kernel/fpsimd.o: relocation R_AARCH64_ABS32 against `__crc_kernel_neon_begin' can not be used when making a shared object arch/arm64/kernel/fpsimd.o:(.data+0x0): dangerous relocation: unsupported relocation arch/arm64/kernel/fpsimd.o:(".discard.addressable"+0x0): dangerous relocation: unsupported relocation arch/arm64/kernel/fpsimd.o:(".discard.addressable"+0x8): dangerous relocation: unsupported relocation We could teach genksyms about the type, but it's easier to just work around it by defining that type locally in a way that genksyms understands. Fixes: 41040cf7c5f0 ("arm64/sve: Fix missing SVE/FPSIMD endianness conversions") Signed-off-by: Arnd Bergmann --- arch/arm64/kernel/fpsimd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 07f238ef47ae..2aba07cccf50 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -400,6 +400,9 @@ static int __init sve_sysctl_init(void) { return 0; } #define ZREG(sve_state, vq, n) ((char *)(sve_state) + \ (SVE_SIG_ZREG_OFFSET(vq, n) - SVE_SIG_REGS_OFFSET)) +#ifdef __GENKSYMS__ +typedef __u64 __uint128_t[2]; +#endif #ifdef CONFIG_CPU_BIG_ENDIAN static __uint128_t arm64_cpu_to_le128(__uint128_t x) { -- 2.20.0