From patchwork Wed May 15 08:20:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13664877 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 947D9C25B7A for ; Wed, 15 May 2024 08:27:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s79vq-00028e-7p; Wed, 15 May 2024 04:24:14 -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 1s79vd-00026Z-11 for qemu-devel@nongnu.org; Wed, 15 May 2024 04:24:01 -0400 Received: from mgamail.intel.com ([198.175.65.18]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s79va-00074Z-MZ for qemu-devel@nongnu.org; Wed, 15 May 2024 04:24:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715761438; x=1747297438; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=RS2o5MSumh7P4PM1sc4bKQuA+A9psNU/xRJ8H8A86Q0=; b=nWcCbMVxo7yC4inr1PFjEzQuYjb4hugbQv5fFl20xkWdOO9qrhoWpOtf QlQboHCoh0dgnuQbs1tQjH8n6pdHIxoKVIWoNA0DRIHUghlQfJqYWmVFj XXcwVAj+LBusEevjYXcwipKFBEizQEgfM5hbdcpHrkaj3iX+tWVswIfEZ /r6BtybuDVyHhOpapmvpNHm19Dp8VGmT9p31ATUvJts7IqSAwRB42zHNI e0Q0yHsqS7wjY0gypYgijGer7iveVFeTVQsRMFczOgbr1JkLSnuFAC0NU rSNp0xeEhEiFRXO5i4lAPWA6BrM8U3sKrTyV2rmd3BWcAbd+ycxgZx+dq w==; X-CSE-ConnectionGUID: pUQzI9S5QVaIl6RSkmDFYw== X-CSE-MsgGUID: lVjarqjbTfWJyuKbYYauRA== X-IronPort-AV: E=McAfee;i="6600,9927,11073"; a="11961546" X-IronPort-AV: E=Sophos;i="6.08,161,1712646000"; d="scan'208";a="11961546" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 May 2024 01:23:58 -0700 X-CSE-ConnectionGUID: s0TqyAyBQWGrcOb0d05lNg== X-CSE-MsgGUID: js/AocQdSbuxZwzFgP1q3A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,161,1712646000"; d="scan'208";a="31396295" Received: from unknown (HELO SPR-S2600BT.bj.intel.com) ([10.240.192.124]) by orviesa006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 May 2024 01:23:56 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH 06/16] vfio/platform: Make vfio_populate_device() and vfio_base_device_init() return bool Date: Wed, 15 May 2024 16:20:31 +0800 Message-Id: <20240515082041.556571-7-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240515082041.556571-1-zhenzhong.duan@intel.com> References: <20240515082041.556571-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=198.175.65.18; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -53 X-Spam_score: -5.4 X-Spam_bar: ----- X-Spam_report: (-5.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.974, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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 This is to follow the coding standand in qapi/error.h to return bool for bool-valued functions. Suggested-by: Cédric Le Goater Signed-off-by: Zhenzhong Duan Reviewed-by: Cédric Le Goater --- hw/vfio/platform.c | 40 +++++++++++++++++----------------------- 1 file changed, 17 insertions(+), 23 deletions(-) diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c index e1a32863d9..a85c199c76 100644 --- a/hw/vfio/platform.c +++ b/hw/vfio/platform.c @@ -441,7 +441,7 @@ static int vfio_platform_hot_reset_multi(VFIODevice *vbasedev) * @errp: error object * */ -static int vfio_populate_device(VFIODevice *vbasedev, Error **errp) +static bool vfio_populate_device(VFIODevice *vbasedev, Error **errp) { VFIOINTp *intp, *tmp; int i, ret = -1; @@ -450,7 +450,7 @@ static int vfio_populate_device(VFIODevice *vbasedev, Error **errp) if (!(vbasedev->flags & VFIO_DEVICE_FLAGS_PLATFORM)) { error_setg(errp, "this isn't a platform device"); - return ret; + return false; } vdev->regions = g_new0(VFIORegion *, vbasedev->num_regions); @@ -487,12 +487,11 @@ static int vfio_populate_device(VFIODevice *vbasedev, Error **errp) irq.flags); intp = vfio_init_intp(vbasedev, irq, errp); if (!intp) { - ret = -1; goto irq_err; } } } - return 0; + return true; irq_err: timer_del(vdev->mmap_timer); QLIST_FOREACH_SAFE(intp, &vdev->intp_list, next, tmp) { @@ -507,7 +506,7 @@ reg_error: g_free(vdev->regions[i]); } g_free(vdev->regions); - return ret; + return false; } /* specialized functions for VFIO Platform devices */ @@ -527,10 +526,8 @@ static VFIODeviceOps vfio_platform_ops = { * fd retrieval, resource query. * Precondition: the device name must be initialized */ -static int vfio_base_device_init(VFIODevice *vbasedev, Error **errp) +static bool vfio_base_device_init(VFIODevice *vbasedev, Error **errp) { - int ret; - /* @fd takes precedence over @sysfsdev which takes precedence over @host */ if (vbasedev->fd < 0 && vbasedev->sysfsdev) { g_free(vbasedev->name); @@ -538,7 +535,7 @@ static int vfio_base_device_init(VFIODevice *vbasedev, Error **errp) } else if (vbasedev->fd < 0) { if (!vbasedev->name || strchr(vbasedev->name, '/')) { error_setg(errp, "wrong host device name"); - return -EINVAL; + return false; } vbasedev->sysfsdev = g_strdup_printf("/sys/bus/platform/devices/%s", @@ -546,20 +543,20 @@ static int vfio_base_device_init(VFIODevice *vbasedev, Error **errp) } if (!vfio_device_get_name(vbasedev, errp)) { - return -EINVAL; + return false; } if (!vfio_attach_device(vbasedev->name, vbasedev, &address_space_memory, errp)) { - return -EINVAL; + return false; } - ret = vfio_populate_device(vbasedev, errp); - if (ret) { - vfio_detach_device(vbasedev); + if (vfio_populate_device(vbasedev, errp)) { + return true; } - return ret; + vfio_detach_device(vbasedev); + return false; } /** @@ -576,7 +573,7 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp) VFIOPlatformDevice *vdev = VFIO_PLATFORM_DEVICE(dev); SysBusDevice *sbdev = SYS_BUS_DEVICE(dev); VFIODevice *vbasedev = &vdev->vbasedev; - int i, ret; + int i; qemu_mutex_init(&vdev->intp_mutex); @@ -584,9 +581,8 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp) vbasedev->sysfsdev : vbasedev->name, vdev->compat); - ret = vfio_base_device_init(vbasedev, errp); - if (ret) { - goto out; + if (!vfio_base_device_init(vbasedev, errp)) { + goto init_err; } if (!vdev->compat) { @@ -618,11 +614,9 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp) } sysbus_init_mmio(sbdev, vdev->regions[i]->mem); } -out: - if (!ret) { - return; - } + return; +init_err: if (vdev->vbasedev.name) { error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.name); } else {