From patchwork Tue Apr 30 07:13:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13648385 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F1268C10F16 for ; Tue, 30 Apr 2024 07:15:15 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s1hgp-00012q-1V; Tue, 30 Apr 2024 03:14:11 -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 1s1hgj-0000tm-J5 for qemu-devel@nongnu.org; Tue, 30 Apr 2024 03:14:06 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s1hgh-0008Pi-S7 for qemu-devel@nongnu.org; Tue, 30 Apr 2024 03:14:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1714461243; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/JmZN2kTcTDZJ50d2NsMjDgbsSWIiw0AqDPZau+AXCw=; b=GHU0B8V+5ReUxbRQ33SDMSQna/Z/MgFBFTj86zNjGDqlX2KAWII7wRrBhfpnypqB9iQuVo wigS7vD+8Xu7YzM7oJmlfhRHLJ/VTfMt+aMlbeY7T3Ezajs13lvEUbaBu8cxYKI2W9jfaj KLKgk3+6NVTgUjjdUVjXyBTFWRi6yjY= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-668-VEPFPp79OJ-XFW0uVv64ug-1; Tue, 30 Apr 2024 03:13:57 -0400 X-MC-Unique: VEPFPp79OJ-XFW0uVv64ug-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 284B489A7E4; Tue, 30 Apr 2024 07:13:57 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.39.193.79]) by smtp.corp.redhat.com (Postfix) with ESMTP id A20D040B4979; Tue, 30 Apr 2024 07:13:55 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Richard Henderson Cc: Chris Friedt , Chris Friedt Subject: [PULL 08/19] hw: misc: edu: rename local vars in edu_check_range Date: Tue, 30 Apr 2024 09:13:29 +0200 Message-ID: <20240430071340.413305-9-thuth@redhat.com> In-Reply-To: <20240430071340.413305-1-thuth@redhat.com> References: <20240430071340.413305-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.987, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Chris Friedt This serves to make the local variables a bit less ambiguous. The latter two arguments are named to match DMA_START, and DMA_SIZE. Signed-off-by: Chris Friedt Message-ID: <20221018122551.94567-2-cfriedt@meta.com> Signed-off-by: Thomas Huth --- hw/misc/edu.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/hw/misc/edu.c b/hw/misc/edu.c index 14250e0ac3..e1cb443438 100644 --- a/hw/misc/edu.c +++ b/hw/misc/edu.c @@ -103,24 +103,24 @@ static void edu_lower_irq(EduState *edu, uint32_t val) } } -static void edu_check_range(uint64_t addr, uint64_t size1, - uint64_t start, uint64_t size2) +static void edu_check_range(uint64_t xfer_start, uint64_t xfer_size, + uint64_t dma_start, uint64_t dma_size) { - uint64_t end1 = addr + size1; - uint64_t end2 = start + size2; + uint64_t xfer_end = xfer_start + xfer_size; + uint64_t dma_end = dma_start + dma_size; /* * 1. ensure we aren't overflowing - * 2. ensure that [addr, end1) is within [start, size2) + * 2. ensure that xfer is within dma address range */ - if (end2 >= start && end1 >= addr && - addr >= start && end1 <= end2) { + if (dma_end >= dma_start && xfer_end >= xfer_start && + xfer_start >= dma_start && xfer_end <= dma_end) { return; } hw_error("EDU: DMA range 0x%016"PRIx64"-0x%016"PRIx64 " out of bounds (0x%016"PRIx64"-0x%016"PRIx64")!", - addr, end1 - 1, start, end2 - 1); + xfer_start, xfer_end - 1, dma_start, dma_end - 1); } static dma_addr_t edu_clamp_addr(const EduState *edu, dma_addr_t addr)