From patchwork Mon Oct 11 15:25:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 12550307 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B68BC433EF for ; Mon, 11 Oct 2021 15:26:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 38BB760FD7 for ; Mon, 11 Oct 2021 15:26:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 38BB760FD7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id B5D5980008; Mon, 11 Oct 2021 11:26:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id AE57480007; Mon, 11 Oct 2021 11:26:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 910F280008; Mon, 11 Oct 2021 11:26:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0156.hostedemail.com [216.40.44.156]) by kanga.kvack.org (Postfix) with ESMTP id 81B2180007 for ; Mon, 11 Oct 2021 11:26:46 -0400 (EDT) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 454E88249980 for ; Mon, 11 Oct 2021 15:26:46 +0000 (UTC) X-FDA: 78684534012.07.5FFFA42 Received: from pegase2.c-s.fr (pegase2.c-s.fr [93.17.235.10]) by imf11.hostedemail.com (Postfix) with ESMTP id E557FF00243E for ; Mon, 11 Oct 2021 15:26:45 +0000 (UTC) Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4HSjM52vF5z9sTs; Mon, 11 Oct 2021 17:26:41 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Rw-otcj9tGfm; Mon, 11 Oct 2021 17:26:41 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4HSjM3024Hz9sTt; Mon, 11 Oct 2021 17:26:38 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id D1EB48B783; Mon, 11 Oct 2021 17:26:38 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id BfLFtPywlEMF; Mon, 11 Oct 2021 17:26:38 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (unknown [172.25.230.103]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 34BAC8B770; Mon, 11 Oct 2021 17:26:38 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (localhost [127.0.0.1]) by PO20335.IDSI0.si.c-s.fr (8.16.1/8.16.1) with ESMTPS id 19BFQVZX1585011 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 11 Oct 2021 17:26:31 +0200 Received: (from chleroy@localhost) by PO20335.IDSI0.si.c-s.fr (8.16.1/8.16.1/Submit) id 19BFQVCV1585010; Mon, 11 Oct 2021 17:26:31 +0200 X-Authentication-Warning: PO20335.IDSI0.si.c-s.fr: chleroy set sender to christophe.leroy@csgroup.eu using -f From: Christophe Leroy To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Andrew Morton , "James E.J. Bottomley" , Helge Deller , Arnd Bergmann , Kees Cook , Greg Kroah-Hartman Cc: Christophe Leroy , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v1 02/10] powerpc: Rename 'funcaddr' to 'addr' in 'struct ppc64_opd_entry' Date: Mon, 11 Oct 2021 17:25:29 +0200 Message-Id: <892715d6f05fdf6ca80cf88a51a9e55298b68c4a.1633964380.git.christophe.leroy@csgroup.eu> X-Mailer: git-send-email 2.31.1 In-Reply-To: References: MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1633965928; l=2423; s=20211009; h=from:subject:message-id; bh=UcrC1vlpvPaezZaHIBKM3b9ewrkDpdFEtlYNrqTDTLg=; b=sR8iFNRcbZxDd66eGD/dN9O9K/+ik1kft5E23FMg8ognNP7/BV69ot654bNfqGeHCkWn0qCr9GYP zdHu+BXfDLuKNAaBHpTjs1VvfxHv9gz6B37Ipyx0bDm/9oyGzhQJ X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: E557FF00243E X-Stat-Signature: 44w1wb9khysxa1rjk4xkzyco9qxafdbc Authentication-Results: imf11.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf11.hostedemail.com: domain of christophe.leroy@csgroup.eu designates 93.17.235.10 as permitted sender) smtp.mailfrom=christophe.leroy@csgroup.eu X-HE-Tag: 1633966005-514307 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: There are three architectures with function descriptors, try to have common names for the address they contain in order to refactor some functions into generic functions later. powerpc has 'funcaddr' ia64 has 'ip' parisc has 'addr' Vote for 'addr' and update 'struct ppc64_opd_entry' accordingly. Signed-off-by: Christophe Leroy Reviewed-by: Kees Cook --- arch/powerpc/include/asm/elf.h | 2 +- arch/powerpc/include/asm/sections.h | 2 +- arch/powerpc/kernel/module_64.c | 6 +++--- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h index 64b523848cd7..90c3259a81ab 100644 --- a/arch/powerpc/include/asm/elf.h +++ b/arch/powerpc/include/asm/elf.h @@ -179,7 +179,7 @@ void relocate(unsigned long final_address); /* There's actually a third entry here, but it's unused */ struct ppc64_opd_entry { - unsigned long funcaddr; + unsigned long addr; unsigned long r2; }; diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h index 6e4af4492a14..32e7035863ac 100644 --- a/arch/powerpc/include/asm/sections.h +++ b/arch/powerpc/include/asm/sections.h @@ -77,7 +77,7 @@ static inline void *dereference_function_descriptor(void *ptr) struct ppc64_opd_entry *desc = ptr; void *p; - if (!get_kernel_nofault(p, (void *)&desc->funcaddr)) + if (!get_kernel_nofault(p, (void *)&desc->addr)) ptr = p; return ptr; } diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index 6baa676e7cb6..82908c9be627 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -72,11 +72,11 @@ static func_desc_t func_desc(unsigned long addr) } static unsigned long func_addr(unsigned long addr) { - return func_desc(addr).funcaddr; + return func_desc(addr).addr; } static unsigned long stub_func_addr(func_desc_t func) { - return func.funcaddr; + return func.addr; } static unsigned int local_entry_offset(const Elf64_Sym *sym) { @@ -187,7 +187,7 @@ static int relacmp(const void *_x, const void *_y) static unsigned long get_stubs_size(const Elf64_Ehdr *hdr, const Elf64_Shdr *sechdrs) { - /* One extra reloc so it's always 0-funcaddr terminated */ + /* One extra reloc so it's always 0-addr terminated */ unsigned long relocs = 1; unsigned i;