From patchwork Tue Jun 23 14:23:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 279709 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8696AC433E0 for ; Tue, 23 Jun 2020 14:24:59 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 50F0C20716 for ; Tue, 23 Jun 2020 14:24:59 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Tue, 23 Jun 2020 14:23:29 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-121.ams2.redhat.com [10.36.112.121]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 75B8610016E8 for ; Tue, 23 Jun 2020 14:23:29 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 5813A1138477; Tue, 23 Jun 2020 16:23:26 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PULL 09/16] qdev: Eliminate get_pointer(), set_pointer() Date: Tue, 23 Jun 2020 16:23:19 +0200 Message-Id: <20200623142326.2349416-10-armbru@redhat.com> In-Reply-To: <20200623142326.2349416-1-armbru@redhat.com> References: <20200623142326.2349416-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.120; envelope-from=armbru@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/23 02:55:19 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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=-1, 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_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 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" We stopped using get_pointer() and set_pointer() for netdev in commit 23120b13c6 "net: don't use set/get_pointer() in set/get_netdev()" (v2.3.0), and for chardev in commit becdfa00cf "char: replace PROP_CHR with CharBackend" (v2.8.0). With only the drive user left, they're not helpful anymore. Eliminate. Signed-off-by: Markus Armbruster Message-Id: <20200622094227.1271650-10-armbru@redhat.com> --- hw/core/qdev-properties-system.c | 95 ++++++++++++-------------------- 1 file changed, 35 insertions(+), 60 deletions(-) diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c index 70bfd4809b..9aa80495ee 100644 --- a/hw/core/qdev-properties-system.c +++ b/hw/core/qdev-properties-system.c @@ -25,29 +25,45 @@ #include "sysemu/iothread.h" #include "sysemu/tpm_backend.h" -static void get_pointer(Object *obj, Visitor *v, Property *prop, - char *(*print)(void *ptr), - const char *name, Error **errp) +/* --- drive --- */ + +static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque, + Error **errp) { DeviceState *dev = DEVICE(obj); + Property *prop = opaque; void **ptr = qdev_get_prop_ptr(dev, prop); + const char *value; char *p; - p = *ptr ? print(*ptr) : g_strdup(""); + if (*ptr) { + value = blk_name(*ptr); + if (!*value) { + BlockDriverState *bs = blk_bs(*ptr); + if (bs) { + value = bdrv_get_node_name(bs); + } + } + } else { + value = ""; + } + + p = g_strdup(value); visit_type_str(v, name, &p, errp); g_free(p); } -static void set_pointer(Object *obj, Visitor *v, Property *prop, - void (*parse)(DeviceState *dev, const char *str, - void **ptr, const char *propname, - Error **errp), - const char *name, Error **errp) +static void set_drive_helper(Object *obj, Visitor *v, const char *name, + void *opaque, bool iothread, Error **errp) { DeviceState *dev = DEVICE(obj); + Property *prop = opaque; Error *local_err = NULL; void **ptr = qdev_get_prop_ptr(dev, prop); char *str; + BlockBackend *blk; + bool blk_created = false; + int ret; if (dev->realized) { qdev_prop_set_after_realize(dev, name, errp); @@ -59,23 +75,12 @@ static void set_pointer(Object *obj, Visitor *v, Property *prop, error_propagate(errp, local_err); return; } + if (!*str) { g_free(str); *ptr = NULL; return; } - parse(dev, str, ptr, prop->name, errp); - g_free(str); -} - -/* --- drive --- */ - -static void do_parse_drive(DeviceState *dev, const char *str, void **ptr, - const char *propname, bool iothread, Error **errp) -{ - BlockBackend *blk; - bool blk_created = false; - int ret; blk = blk_by_name(str); if (!blk) { @@ -101,7 +106,7 @@ static void do_parse_drive(DeviceState *dev, const char *str, void **ptr, } if (!blk) { error_setg(errp, "Property '%s.%s' can't find value '%s'", - object_get_typename(OBJECT(dev)), propname, str); + object_get_typename(OBJECT(dev)), prop->name, str); goto fail; } if (blk_attach_dev(blk, dev) < 0) { @@ -126,18 +131,20 @@ fail: /* If we need to keep a reference, blk_attach_dev() took it */ blk_unref(blk); } + + g_free(str); } -static void parse_drive(DeviceState *dev, const char *str, void **ptr, - const char *propname, Error **errp) +static void set_drive(Object *obj, Visitor *v, const char *name, void *opaque, + Error **errp) { - do_parse_drive(dev, str, ptr, propname, false, errp); + set_drive_helper(obj, v, name, opaque, false, errp); } -static void parse_drive_iothread(DeviceState *dev, const char *str, void **ptr, - const char *propname, Error **errp) +static void set_drive_iothread(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) { - do_parse_drive(dev, str, ptr, propname, true, errp); + set_drive_helper(obj, v, name, opaque, true, errp); } static void release_drive(Object *obj, const char *name, void *opaque) @@ -156,38 +163,6 @@ static void release_drive(Object *obj, const char *name, void *opaque) } } -static char *print_drive(void *ptr) -{ - const char *name; - - name = blk_name(ptr); - if (!*name) { - BlockDriverState *bs = blk_bs(ptr); - if (bs) { - name = bdrv_get_node_name(bs); - } - } - return g_strdup(name); -} - -static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque, - Error **errp) -{ - get_pointer(obj, v, opaque, print_drive, name, errp); -} - -static void set_drive(Object *obj, Visitor *v, const char *name, void *opaque, - Error **errp) -{ - set_pointer(obj, v, opaque, parse_drive, name, errp); -} - -static void set_drive_iothread(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) -{ - set_pointer(obj, v, opaque, parse_drive_iothread, name, errp); -} - const PropertyInfo qdev_prop_drive = { .name = "str", .description = "Node name or ID of a block device to use as a backend",