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Thu, 19 Dec 2024 00:33:07 -0800 (PST) X-Google-Smtp-Source: AGHT+IFuDqkZNP9JNxZMMT+1kXsDPde+6BfP4PEWrSyz5Xen2nIGPkpognO7hlfhI5420tdMt6GHBg== X-Received: by 2002:a05:600c:510f:b0:436:1b08:4c78 with SMTP id 5b1f17b1804b1-43655401b49mr58587725e9.31.1734597186686; Thu, 19 Dec 2024 00:33:06 -0800 (PST) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Richard Henderson Subject: [PULL 18/41] hw/core: Replace device_class_set_props with a macro Date: Thu, 19 Dec 2024 09:32:05 +0100 Message-ID: <20241219083228.363430-19-pbonzini@redhat.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241219083228.363430-1-pbonzini@redhat.com> References: <20241219083228.363430-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=170.10.133.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 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_H2=-1.116, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 1734597333645116600 Content-Type: text/plain; charset="utf-8" From: Richard Henderson Use ARRAY_SIZE to implement as device_class_set_props_n. Remove any DEFINE_PROP_END_OF_LIST terminator from the count. Signed-off-by: Richard Henderson Link: https://lore.kernel.org/r/20241216035109.3486070-19-richard.henderson= @linaro.org Signed-off-by: Paolo Bonzini --- include/hw/qdev-core.h | 21 +++++++++++++-------- hw/core/qdev-properties.c | 16 ---------------- 2 files changed, 13 insertions(+), 24 deletions(-) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index cd0ddf84ca5..5dc46402585 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -941,20 +941,25 @@ char *qdev_get_own_fw_dev_path_from_handler(BusState = *bus, DeviceState *dev); /** * device_class_set_props(): add a set of properties to an device * @dc: the parent DeviceClass all devices inherit - * @props: an array of properties, terminate by DEFINE_PROP_END_OF_LIST() + * @props: an array of properties * * This will add a set of properties to the object. It will fault if * you attempt to add an existing property defined by a parent class. * To modify an inherited property you need to use???? + * + * Validate that @props has at least one Property plus the terminator. + * Validate that @props is an array, not a pointer, via ARRAY_SIZE. + * Validate that the array is terminated at compile-time (with -O2), + * which requires the array to be const. */ -void device_class_set_props(DeviceClass *dc, const Property *props); - -/* Validate at least one Property, plus the terminator. */ -#define device_class_set_props(DC, PROPS) \ +#define device_class_set_props(dc, props) \ do { \ - QEMU_BUILD_BUG_ON(sizeof(PROPS) !=3D sizeof(const Property *) && \ - sizeof(PROPS) < 2 * sizeof(Property)); \ - (device_class_set_props)(DC, PROPS); \ + QEMU_BUILD_BUG_ON(sizeof(props) < 2 * sizeof(Property)); \ + size_t props_count_ =3D ARRAY_SIZE(props) - 1; \ + if ((props)[props_count_].name !=3D NULL) { \ + qemu_build_not_reached(); \ + } \ + device_class_set_props_n((dc), (props), props_count_); \ } while (0) =20 /** diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c index 31e3072b559..a3d49e20202 100644 --- a/hw/core/qdev-properties.c +++ b/hw/core/qdev-properties.c @@ -1058,22 +1058,6 @@ static void qdev_class_add_legacy_property(DeviceCla= ss *dc, const Property *prop NULL, NULL, (Property *)prop); } =20 -void (device_class_set_props)(DeviceClass *dc, const Property *props) -{ - const Property *prop; - size_t n; - - dc->props_ =3D props; - for (prop =3D props, n =3D 0; prop && prop->name; prop++, n++) { - qdev_class_add_legacy_property(dc, prop); - qdev_class_add_property(dc, prop->name, prop); - } - - /* We used a hole in DeviceClass because that's still a lot. */ - assert(n <=3D UINT16_MAX); - dc->props_count_ =3D n; -} - void device_class_set_props_n(DeviceClass *dc, const Property *props, size= _t n) { /* We used a hole in DeviceClass because that's still a lot. */ --=20 2.47.1