From nobody Mon Nov 25 11:45:40 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=eik.bme.hu Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 17152867598021002.8642813294717; Thu, 9 May 2024 13:32:39 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s5AKs-000095-RH; Thu, 09 May 2024 16:25:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s5AKo-000050-Vy; Thu, 09 May 2024 16:25:47 -0400 Received: from zero.eik.bme.hu ([2001:738:2001:2001::2001]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s5AKl-0000zZ-80; Thu, 09 May 2024 16:25:46 -0400 Received: from zero.eik.bme.hu (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id C9AE24E64E0; Thu, 09 May 2024 22:25:38 +0200 (CEST) Received: from zero.eik.bme.hu ([127.0.0.1]) by zero.eik.bme.hu (zero.eik.bme.hu [127.0.0.1]) (amavisd-new, port 10028) with ESMTP id XQRdMptdwpqP; Thu, 9 May 2024 22:25:36 +0200 (CEST) Received: by zero.eik.bme.hu (Postfix, from userid 432) id D70084E642D; Thu, 09 May 2024 22:25:36 +0200 (CEST) X-Virus-Scanned: amavisd-new at eik.bme.hu Message-Id: In-Reply-To: References: From: BALATON Zoltan Subject: [PATCH v5 03/32] target/ppc/mmu_common.c: Remove unneeded local variable MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Nicholas Piggin , Daniel Henrique Barboza Date: Thu, 09 May 2024 22:25:36 +0200 (CEST) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:738:2001:2001::2001; envelope-from=balaton@eik.bme.hu; helo=zero.eik.bme.hu X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1715286761593100005 Content-Type: text/plain; charset="utf-8" In mmubooke_check_tlb() and mmubooke206_check_tlb() we can assign the value of prot2 directly to the destination, no need to have a separate local variable for it. Signed-off-by: BALATON Zoltan Reviewed-by: Nicholas Piggin --- target/ppc/mmu_common.c | 30 +++++++++++++----------------- 1 file changed, 13 insertions(+), 17 deletions(-) diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c index f79e390306..09cbeb0052 100644 --- a/target/ppc/mmu_common.c +++ b/target/ppc/mmu_common.c @@ -628,8 +628,6 @@ static int mmubooke_check_tlb(CPUPPCState *env, ppcemb_= tlb_t *tlb, hwaddr *raddr, int *prot, target_ulong addre= ss, MMUAccessType access_type, int i) { - int prot2; - if (!mmubooke_check_pid(env, tlb, raddr, address, i)) { qemu_log_mask(CPU_LOG_MMU, "%s: TLB entry not found\n", __func__); return -1; @@ -644,17 +642,16 @@ static int mmubooke_check_tlb(CPUPPCState *env, ppcem= b_tlb_t *tlb, } =20 if (FIELD_EX64(env->msr, MSR, PR)) { - prot2 =3D tlb->prot & 0xF; + *prot =3D tlb->prot & 0xF; } else { - prot2 =3D (tlb->prot >> 4) & 0xF; + *prot =3D (tlb->prot >> 4) & 0xF; } - *prot =3D prot2; - if (prot2 & prot_for_access_type(access_type)) { + if (*prot & prot_for_access_type(access_type)) { qemu_log_mask(CPU_LOG_MMU, "%s: good TLB!\n", __func__); return 0; } =20 - qemu_log_mask(CPU_LOG_MMU, "%s: no prot match: %x\n", __func__, prot2); + qemu_log_mask(CPU_LOG_MMU, "%s: no prot match: %x\n", __func__, *prot); return access_type =3D=3D MMU_INST_FETCH ? -3 : -2; } =20 @@ -795,7 +792,6 @@ static int mmubooke206_check_tlb(CPUPPCState *env, ppcm= as_tlb_t *tlb, target_ulong address, MMUAccessType access_type, int mmu_idx) { - int prot2 =3D 0; uint32_t epid; bool as, pr; bool use_epid =3D mmubooke206_get_as(env, mmu_idx, &epid, &as, &pr); @@ -841,34 +837,34 @@ found_tlb: return -1; } =20 + *prot =3D 0; if (pr) { if (tlb->mas7_3 & MAS3_UR) { - prot2 |=3D PAGE_READ; + *prot |=3D PAGE_READ; } if (tlb->mas7_3 & MAS3_UW) { - prot2 |=3D PAGE_WRITE; + *prot |=3D PAGE_WRITE; } if (tlb->mas7_3 & MAS3_UX) { - prot2 |=3D PAGE_EXEC; + *prot |=3D PAGE_EXEC; } } else { if (tlb->mas7_3 & MAS3_SR) { - prot2 |=3D PAGE_READ; + *prot |=3D PAGE_READ; } if (tlb->mas7_3 & MAS3_SW) { - prot2 |=3D PAGE_WRITE; + *prot |=3D PAGE_WRITE; } if (tlb->mas7_3 & MAS3_SX) { - prot2 |=3D PAGE_EXEC; + *prot |=3D PAGE_EXEC; } } - *prot =3D prot2; - if (prot2 & prot_for_access_type(access_type)) { + if (*prot & prot_for_access_type(access_type)) { qemu_log_mask(CPU_LOG_MMU, "%s: good TLB!\n", __func__); return 0; } =20 - qemu_log_mask(CPU_LOG_MMU, "%s: no prot match: %x\n", __func__, prot2); + qemu_log_mask(CPU_LOG_MMU, "%s: no prot match: %x\n", __func__, *prot); return access_type =3D=3D MMU_INST_FETCH ? -3 : -2; } =20 --=20 2.30.9