From mboxrd@z Thu Jan 1 00:00:00 1970 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 05B72C433F5 for ; Mon, 14 Mar 2022 16:08:09 +0000 (UTC) Received: from localhost ([::1]:51736 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nTnEv-0003Q1-2Y for qemu-devel@archiver.kernel.org; Mon, 14 Mar 2022 12:08:09 -0400 Received: from eggs.gnu.org ([209.51.188.92]:47736) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nTn8e-0003gx-CT for qemu-devel@nongnu.org; Mon, 14 Mar 2022 12:01:40 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:44262) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nTn8b-0001ki-Ga for qemu-devel@nongnu.org; Mon, 14 Mar 2022 12:01:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1647273696; 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: in-reply-to:in-reply-to:references:references; bh=jyh5Aky+XmxKXch9GhHyv+ocJ1z/NmLUE6mIW6ga0GM=; b=hCXA01nT3nqx8dPrBWqCjuQ8QEpOYFHlF66g/4FozUvEsLT/d7cTdpGW1Q162Mq6wXTjvJ pb1gRCHpgdCtud1sAZmvwS/kxxOUc+QVbWNjuM7vY2nsQfUxCxzcRWVA0Zk5PKbxe7yTUK rnhhiFrW5Mx20XnG3hdJAXTLe+vgdO8= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-629-QY0a79qXNymPxjJmfg1VZQ-1; Mon, 14 Mar 2022 12:01:35 -0400 X-MC-Unique: QY0a79qXNymPxjJmfg1VZQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 2F806899ED9; Mon, 14 Mar 2022 16:01:33 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.36.112.3]) by smtp.corp.redhat.com (Postfix) with ESMTPS id CF49A1111C68; Mon, 14 Mar 2022 16:01:09 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id AA31321D1F58; Mon, 14 Mar 2022 17:01:08 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH 2/3] 9pfs: Use g_new() & friends where that makes obvious sense Date: Mon, 14 Mar 2022 17:01:07 +0100 Message-Id: <20220314160108.1440470-3-armbru@redhat.com> In-Reply-To: <20220314160108.1440470-1-armbru@redhat.com> References: <20220314160108.1440470-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: , Cc: Peter Maydell , Daniel Henrique Barboza , kvm@vger.kernel.org, "Michael S. Tsirkin" , Jason Wang , Christian Schoenebeck , Yuval Shaia , Peter Xu , Klaus Jensen , KONRAD Frederic , Konstantin Kostiuk , Gerd Hoffmann , Ani Sinha , Reinoud Zandijk , Eric Blake , Sunil Muthuswamy , Stefano Stabellini , xen-devel@lists.xenproject.org, Yoshinori Sato , Juan Quintela , John Snow , Paul Durrant , Magnus Damm , Kamil Rytarowski , "Gonglei \(Arei\)" , =?UTF-8?q?Herv=C3=A9=20Poussineau?= , Michael Roth , Anthony Perard , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Artyom Tarasenko , Laurent Vivier , Aleksandar Rikalo , Amit Shah , Mark Cave-Ayland , haxm-team@intel.com, Richard Henderson , Greg Kurz , Fabien Chouteau , "Dr. David Alan Gilbert" , Thomas Huth , Eric Auger , Alex Williamson , qemu-arm@nongnu.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Pavel Dovgalyuk , Paolo Bonzini , Keith Busch , qemu-ppc@nongnu.org, David Hildenbrand , =?UTF-8?q?Alex=20Benn=C3=A9e?= , David Gibson , Eduardo Habkost , Vladimir Sementsov-Ogievskiy , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , qemu-block@nongnu.org, Max Filippov , qemu-s390x@nongnu.org, Patrick Venture , Cornelia Huck , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Jean-Christophe Dubois , Corey Minyard , Wenchao Wang , Igor Mammedov , Colin Xu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer, for two reasons. One, it catches multiplication overflowing size_t. Two, it returns T * rather than void *, which lets the compiler catch more type errors. This commit only touches allocations with size arguments of the form sizeof(T). Patch created mechanically with: $ spatch --in-place --sp-file scripts/coccinelle/use-g_new-etc.cocci \ --macro-file scripts/cocci-macro-file.h FILES... Except this uncovers a typing error: ../hw/9pfs/9p.c:855:13: warning: incompatible pointer types assigning to 'QpfEntry *' from 'QppEntry *' [-Wincompatible-pointer-types] val = g_new0(QppEntry, 1); ^ ~~~~~~~~~~~~~~~~~~~ 1 warning generated. Harmless, because QppEntry is larger than QpfEntry. Fix to allocate a QpfEntry instead. Cc: Greg Kurz Cc: Christian Schoenebeck Signed-off-by: Markus Armbruster --- hw/9pfs/9p-proxy.c | 2 +- hw/9pfs/9p-synth.c | 4 ++-- hw/9pfs/9p.c | 8 ++++---- hw/9pfs/codir.c | 6 +++--- tests/qtest/virtio-9p-test.c | 4 ++-- 5 files changed, 12 insertions(+), 12 deletions(-) diff --git a/hw/9pfs/9p-proxy.c b/hw/9pfs/9p-proxy.c index 8b4b5cf7dc..4c5e0fc217 100644 --- a/hw/9pfs/9p-proxy.c +++ b/hw/9pfs/9p-proxy.c @@ -1187,7 +1187,7 @@ static int proxy_parse_opts(QemuOpts *opts, FsDriverEntry *fs, Error **errp) static int proxy_init(FsContext *ctx, Error **errp) { - V9fsProxy *proxy = g_malloc(sizeof(V9fsProxy)); + V9fsProxy *proxy = g_new(V9fsProxy, 1); int sock_id; if (ctx->export_flags & V9FS_PROXY_SOCK_NAME) { diff --git a/hw/9pfs/9p-synth.c b/hw/9pfs/9p-synth.c index b3080e415b..d99d263985 100644 --- a/hw/9pfs/9p-synth.c +++ b/hw/9pfs/9p-synth.c @@ -49,7 +49,7 @@ static V9fsSynthNode *v9fs_add_dir_node(V9fsSynthNode *parent, int mode, /* Add directory type and remove write bits */ mode = ((mode & 0777) | S_IFDIR) & ~(S_IWUSR | S_IWGRP | S_IWOTH); - node = g_malloc0(sizeof(V9fsSynthNode)); + node = g_new0(V9fsSynthNode, 1); if (attr) { /* We are adding .. or . entries */ node->attr = attr; @@ -128,7 +128,7 @@ int qemu_v9fs_synth_add_file(V9fsSynthNode *parent, int mode, } /* Add file type and remove write bits */ mode = ((mode & 0777) | S_IFREG); - node = g_malloc0(sizeof(V9fsSynthNode)); + node = g_new0(V9fsSynthNode, 1); node->attr = &node->actual_attr; node->attr->inode = synth_node_count++; node->attr->nlink = 1; diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index a6d6b3f835..8e9d4aea73 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -324,7 +324,7 @@ static V9fsFidState *alloc_fid(V9fsState *s, int32_t fid) return NULL; } } - f = g_malloc0(sizeof(V9fsFidState)); + f = g_new0(V9fsFidState, 1); f->fid = fid; f->fid_type = P9_FID_NONE; f->ref = 1; @@ -804,7 +804,7 @@ static int qid_inode_prefix_hash_bits(V9fsPDU *pdu, dev_t dev) val = qht_lookup(&pdu->s->qpd_table, &lookup, hash); if (!val) { - val = g_malloc0(sizeof(QpdEntry)); + val = g_new0(QpdEntry, 1); *val = lookup; affix = affixForIndex(pdu->s->qp_affix_next); val->prefix_bits = affix.bits; @@ -852,7 +852,7 @@ static int qid_path_fullmap(V9fsPDU *pdu, const struct stat *stbuf, return -ENFILE; } - val = g_malloc0(sizeof(QppEntry)); + val = g_new0(QpfEntry, 1); *val = lookup; /* new unique inode and device combo */ @@ -928,7 +928,7 @@ static int qid_path_suffixmap(V9fsPDU *pdu, const struct stat *stbuf, return -ENFILE; } - val = g_malloc0(sizeof(QppEntry)); + val = g_new0(QppEntry, 1); *val = lookup; /* new unique inode affix and device combo */ diff --git a/hw/9pfs/codir.c b/hw/9pfs/codir.c index 75148bc985..93ba44fb75 100644 --- a/hw/9pfs/codir.c +++ b/hw/9pfs/codir.c @@ -141,9 +141,9 @@ static int do_readdir_many(V9fsPDU *pdu, V9fsFidState *fidp, /* append next node to result chain */ if (!e) { - *entries = e = g_malloc0(sizeof(V9fsDirEnt)); + *entries = e = g_new0(V9fsDirEnt, 1); } else { - e = e->next = g_malloc0(sizeof(V9fsDirEnt)); + e = e->next = g_new0(V9fsDirEnt, 1); } e->dent = qemu_dirent_dup(dent); @@ -163,7 +163,7 @@ static int do_readdir_many(V9fsPDU *pdu, V9fsFidState *fidp, break; } - e->st = g_malloc0(sizeof(struct stat)); + e->st = g_new0(struct stat, 1); memcpy(e->st, &stbuf, sizeof(struct stat)); } diff --git a/tests/qtest/virtio-9p-test.c b/tests/qtest/virtio-9p-test.c index 01ca076afe..e28c71bd8f 100644 --- a/tests/qtest/virtio-9p-test.c +++ b/tests/qtest/virtio-9p-test.c @@ -468,12 +468,12 @@ static void v9fs_rreaddir(P9Req *req, uint32_t *count, uint32_t *nentries, togo -= 13 + 8 + 1 + 2 + slen, ++n) { if (!e) { - e = g_malloc(sizeof(struct V9fsDirent)); + e = g_new(struct V9fsDirent, 1); if (entries) { *entries = e; } } else { - e = e->next = g_malloc(sizeof(struct V9fsDirent)); + e = e->next = g_new(struct V9fsDirent, 1); } e->next = NULL; /* qid[13] offset[8] type[1] name[s] */ -- 2.35.1