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bh=Wrt6okKOnmpVXT/eryr4wzTcDbGf2/zr75j5q/NxDYM=; b=B7QZHUX9dXKcB19BfukZ/G1GeSk9fTVriFJqVxp5wemQ5NuCte5LeMfdCOBZ1WyHCQZkVi yBY1QcwB0u4PDIH/8ILdqRv23wg7xU4td2uKS7zLM9KQ9cy85sgHKBylnoxYTtvbu8tgeJ L6edKthMN4fyA6/bv7vi7uTaRFWUh3w= X-MC-Unique: PsrgeyJBPFan7zxVji58Xw-1 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , Zhenzhong Duan , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 39/47] vfio/pci: Make vfio_populate_device() return a bool Date: Wed, 22 May 2024 11:54:34 +0200 Message-ID: <20240522095442.195243-40-clg@redhat.com> In-Reply-To: <20240522095442.195243-1-clg@redhat.com> References: <20240522095442.195243-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=clg@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 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1716371909357100001 From: Zhenzhong Duan Since vfio_populate_device() takes an 'Error **' argument, best practices suggest to return a bool. See the qapi/error.h Rules section. By this chance, pass errp directly to vfio_populate_device() to avoid calling error_propagate(). Signed-off-by: Zhenzhong Duan Reviewed-by: C=C3=A9dric Le Goater Signed-off-by: C=C3=A9dric Le Goater --- hw/vfio/pci.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 4fb5fd0c9f61627c402164fc4bed1868540350e0..46d3c618596d95266543e9a0ebc= 65c04d9a7cc5d 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -2740,7 +2740,7 @@ int vfio_populate_vga(VFIOPCIDevice *vdev, Error **er= rp) return 0; } =20 -static void vfio_populate_device(VFIOPCIDevice *vdev, Error **errp) +static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp) { VFIODevice *vbasedev =3D &vdev->vbasedev; struct vfio_region_info *reg_info; @@ -2750,18 +2750,18 @@ static void vfio_populate_device(VFIOPCIDevice *vde= v, Error **errp) /* Sanity check device */ if (!(vbasedev->flags & VFIO_DEVICE_FLAGS_PCI)) { error_setg(errp, "this isn't a PCI device"); - return; + return false; } =20 if (vbasedev->num_regions < VFIO_PCI_CONFIG_REGION_INDEX + 1) { error_setg(errp, "unexpected number of io regions %u", vbasedev->num_regions); - return; + return false; } =20 if (vbasedev->num_irqs < VFIO_PCI_MSIX_IRQ_INDEX + 1) { error_setg(errp, "unexpected number of irqs %u", vbasedev->num_irq= s); - return; + return false; } =20 for (i =3D VFIO_PCI_BAR0_REGION_INDEX; i < VFIO_PCI_ROM_REGION_INDEX; = i++) { @@ -2773,7 +2773,7 @@ static void vfio_populate_device(VFIOPCIDevice *vdev,= Error **errp) =20 if (ret) { error_setg_errno(errp, -ret, "failed to get region %d info", i= ); - return; + return false; } =20 QLIST_INIT(&vdev->bars[i].quirks); @@ -2783,7 +2783,7 @@ static void vfio_populate_device(VFIOPCIDevice *vdev,= Error **errp) VFIO_PCI_CONFIG_REGION_INDEX, ®_info); if (ret) { error_setg_errno(errp, -ret, "failed to get config info"); - return; + return false; } =20 trace_vfio_populate_device_config(vdev->vbasedev.name, @@ -2804,7 +2804,7 @@ static void vfio_populate_device(VFIOPCIDevice *vdev,= Error **errp) if (ret) { error_append_hint(errp, "device does not support " "requested feature x-vga\n"); - return; + return false; } } =20 @@ -2821,6 +2821,8 @@ static void vfio_populate_device(VFIOPCIDevice *vdev,= Error **errp) "Could not enable error recovery for the device", vbasedev->name); } + + return true; } =20 static void vfio_pci_put_device(VFIOPCIDevice *vdev) @@ -2977,7 +2979,6 @@ static void vfio_realize(PCIDevice *pdev, Error **err= p) VFIOPCIDevice *vdev =3D VFIO_PCI(pdev); VFIODevice *vbasedev =3D &vdev->vbasedev; char *subsys; - Error *err =3D NULL; int i, ret; bool is_mdev; char uuid[UUID_STR_LEN]; @@ -3036,9 +3037,7 @@ static void vfio_realize(PCIDevice *pdev, Error **err= p) goto error; } =20 - vfio_populate_device(vdev, &err); - if (err) { - error_propagate(errp, err); + if (!vfio_populate_device(vdev, errp)) { goto error; } =20 --=20 2.45.1