From patchwork Thu Mar 24 14:30:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 1609092 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4KPSW66Z5pz9s1l for ; Fri, 25 Mar 2022 01:37:54 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4KPSW65N0hz3cgC for ; Fri, 25 Mar 2022 01:37:54 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.235.10; helo=pegase2.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Received: from pegase2.c-s.fr (pegase2.c-s.fr [93.17.235.10]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4KPSNz0TCNz3bvs for ; Fri, 25 Mar 2022 01:32:35 +1100 (AEDT) Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4KPSMH20Vhz9sTy; Thu, 24 Mar 2022 15:31:07 +0100 (CET) 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 u-W6Est-0pkC; Thu, 24 Mar 2022 15:31:07 +0100 (CET) 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 4KPSLz0Hr5z9sTx; Thu, 24 Mar 2022 15:30:51 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id DF60F8B78B; Thu, 24 Mar 2022 15:30:50 +0100 (CET) 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 32nCd3AEpQVs; Thu, 24 Mar 2022 15:30:50 +0100 (CET) Received: from PO20335.IDSI0.si.c-s.fr (unknown [192.168.203.77]) by messagerie.si.c-s.fr (Postfix) with ESMTP id E28C08B79C; Thu, 24 Mar 2022 15:30:49 +0100 (CET) Received: from PO20335.IDSI0.si.c-s.fr (localhost [127.0.0.1]) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.16.1) with ESMTPS id 22OEUiPI1811760 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Thu, 24 Mar 2022 15:30:44 +0100 Received: (from chleroy@localhost) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.17.1/Submit) id 22OEUiwf1811759; Thu, 24 Mar 2022 15:30:44 +0100 X-Authentication-Warning: PO20335.IDSI0.si.c-s.fr: chleroy set sender to christophe.leroy@csgroup.eu using -f From: Christophe Leroy To: "Naveen N . Rao" , Steven Rostedt , Ingo Molnar , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman Subject: [PATCH v1 20/22] powerpc/modules: Use PPC_INST_BRANCH_MASK instead of opencoding Date: Thu, 24 Mar 2022 15:30:10 +0100 Message-Id: X-Mailer: git-send-email 2.35.1 In-Reply-To: References: MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1648132152; l=2135; s=20211009; h=from:subject:message-id; bh=+hpUyk5a1199l2+WP/AdaKunGqwu6Qoeoc6PngqTufs=; b=JPmeYBLVclnVxlOKg4+3av5sIUFxL2DOsI9D62gGNWM+KF0b0fus4PRJUaBsh44i4s6mBFTzZj+u o+x0bcKBD2drjXUZgRB9xOTMKrx4dvQG+eG0ZaKcM4T4Qez2uR3/ X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Use PPC_INST_BRANCH_MASK instead of opencoding. Signed-off-by: Christophe Leroy --- arch/powerpc/kernel/module_32.c | 13 ++++++------- arch/powerpc/kernel/module_64.c | 4 ++-- 2 files changed, 8 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c index 1282cfd672f2..344941855e9e 100644 --- a/arch/powerpc/kernel/module_32.c +++ b/arch/powerpc/kernel/module_32.c @@ -256,9 +256,8 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, value, (uint32_t)location); pr_debug("Location before: %08X.\n", *(uint32_t *)location); - value = (*(uint32_t *)location & ~0x03fffffc) - | ((value - (uint32_t)location) - & 0x03fffffc); + value = (*(uint32_t *)location & ~PPC_INST_OFFSET24_MASK) | + ((value - (uint32_t)location) & PPC_INST_OFFSET24_MASK); if (patch_instruction(location, ppc_inst(value))) return -EFAULT; @@ -266,10 +265,10 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, pr_debug("Location after: %08X.\n", *(uint32_t *)location); pr_debug("ie. jump to %08X+%08X = %08X\n", - *(uint32_t *)location & 0x03fffffc, - (uint32_t)location, - (*(uint32_t *)location & 0x03fffffc) - + (uint32_t)location); + *(uint32_t *)location & PPC_INST_OFFSET24_MASK, + (uint32_t)location, + (*(uint32_t *)location & PPC_INST_OFFSET24_MASK) + + (uint32_t)location); break; case R_PPC_REL32: diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index b13a72665eee..8f70a04aac6c 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -653,8 +653,8 @@ int apply_relocate_add(Elf64_Shdr *sechdrs, } /* Only replace bits 2 through 26 */ - value = (*(uint32_t *)location & ~0x03fffffc) - | (value & 0x03fffffc); + value = (*(uint32_t *)location & ~PPC_INST_OFFSET24_MASK) | + (value & PPC_INST_OFFSET24_MASK); if (patch_instruction((u32 *)location, ppc_inst(value))) return -EFAULT;