From patchwork Thu Jul 13 06:45:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gavin Shan X-Patchwork-Id: 13311367 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 87983C0015E for ; Thu, 13 Jul 2023 06:47:20 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qJq66-0001VW-0K; Thu, 13 Jul 2023 02:46:42 -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 1qJq5z-0001Ug-Ar for qemu-devel@nongnu.org; Thu, 13 Jul 2023 02:46:35 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qJq5w-00028e-NF for qemu-devel@nongnu.org; Thu, 13 Jul 2023 02:46:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1689230788; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=03wGqa+Y8Yj9pF1RYYCnMVZW6U1Zc1Ma5ogka4JQW8g=; b=daqpeee4kGlSYhCHi/U0emm0qPi8EkIrcTlR5R3Xd1DZOiXJh3QAImNEFM/JvR5AviGcwE suU5j/kpo7/ib0j0nnLZDVMr5NsMnz8r0byk2hgz6pGreyNrAmvas5LaggLrMnhyrYVQ1L +rUJU6OOmsOvuSEoh35JGJ83OBtEN7s= Received: from mimecast-mx02.redhat.com (66.187.233.73 [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-231-Ag_mWyNIMHmv2SBHSYizWw-1; Thu, 13 Jul 2023 02:46:22 -0400 X-MC-Unique: Ag_mWyNIMHmv2SBHSYizWw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 19B0C1C0724F; Thu, 13 Jul 2023 06:46:20 +0000 (UTC) Received: from gshan.redhat.com (vpn2-54-126.bne.redhat.com [10.64.54.126]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 75A89F6CBE; Thu, 13 Jul 2023 06:45:58 +0000 (UTC) From: Gavin Shan To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, pbonzini@redhat.com, peterx@redhat.com, david@redhat.com, philmd@linaro.org, shan.gavin@gmail.com Subject: [PATCH] memory: Remove unecessary variable in memory_region_escape_name() Date: Thu, 13 Jul 2023 16:45:45 +1000 Message-ID: <20230713064545.427768-1-gshan@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Received-SPF: pass client-ip=170.10.129.124; envelope-from=gshan@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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, T_SCC_BODY_TEXT_LINE=-0.01 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 The variable 'c' isn't needed because it can be replaced by '*p' completely. Remove the unecessary variable 'c' to simplify the function a bit. No functional change intended. Signed-off-by: Gavin Shan --- softmmu/memory.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/softmmu/memory.c b/softmmu/memory.c index 7d9494ce70..1ae285bab8 100644 --- a/softmmu/memory.c +++ b/softmmu/memory.c @@ -1151,7 +1151,6 @@ static char *memory_region_escape_name(const char *name) { const char *p; char *escaped, *q; - uint8_t c; size_t bytes = 0; for (p = name; *p; p++) { @@ -1163,14 +1162,14 @@ static char *memory_region_escape_name(const char *name) escaped = g_malloc(bytes + 1); for (p = name, q = escaped; *p; p++) { - c = *p; - if (unlikely(memory_region_need_escape(c))) { + if (likely(!memory_region_need_escape(*p))) { + *q++ = *p; + } else { *q++ = '\\'; *q++ = 'x'; - *q++ = "0123456789abcdef"[c >> 4]; - c = "0123456789abcdef"[c & 15]; + *q++ = "0123456789abcdef"[*p >> 4]; + *q++ = "0123456789abcdef"[*p & 15]; } - *q++ = c; } *q = 0; return escaped;