diff mbox series

[v3,23/53] qdev: Move dev->realized check to qdev_property_set()

Message ID 20201112214350.872250-24-ehabkost@redhat.com (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Eduardo Habkost Nov. 12, 2020, 9:43 p.m. UTC 
Every single qdev property setter function manually checks
dev->realized.  We can just check dev->realized inside
qdev_property_set() instead.

The check is being added as a separate function
(qdev_prop_allow_set()) because it will become a callback later.

Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
Changes v1 -> v2:
* Removed unused variable at xen_block_set_vdev()
* Redone patch after changes in the previous patches in the
  series
---
Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Paul Durrant <paul@xen.org>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Halil Pasic <pasic@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: David Hildenbrand <david@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Matthew Rosato <mjrosato@linux.ibm.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Artyom Tarasenko <atar4qemu@gmail.com>
Cc: qemu-devel@nongnu.org
Cc: xen-devel@lists.xenproject.org
Cc: qemu-block@nongnu.org
Cc: qemu-s390x@nongnu.org
---
 backends/tpm/tpm_util.c          |   6 --
 hw/block/xen-block.c             |   6 --
 hw/core/qdev-properties-system.c |  70 ----------------------
 hw/core/qdev-properties.c        | 100 ++++++-------------------------
 hw/s390x/css.c                   |   6 --
 hw/s390x/s390-pci-bus.c          |   6 --
 hw/vfio/pci-quirks.c             |   6 --
 target/sparc/cpu.c               |   6 --
 8 files changed, 18 insertions(+), 188 deletions(-)
diff mbox series

Patch

diff --git a/backends/tpm/tpm_util.c b/backends/tpm/tpm_util.c
index dba2f6b04a..0b07cf55ea 100644
--- a/backends/tpm/tpm_util.c
+++ b/backends/tpm/tpm_util.c
@@ -46,16 +46,10 @@  static void get_tpm(Object *obj, Visitor *v, const char *name, void *opaque,
 static void set_tpm(Object *obj, Visitor *v, const char *name, void *opaque,
                     Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     TPMBackend *s, **be = qdev_get_prop_ptr(obj, prop);
     char *str;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
diff --git a/hw/block/xen-block.c b/hw/block/xen-block.c
index 905e4acd97..bd1aef63a7 100644
--- a/hw/block/xen-block.c
+++ b/hw/block/xen-block.c
@@ -395,17 +395,11 @@  static int vbd_name_to_disk(const char *name, const char **endp,
 static void xen_block_set_vdev(Object *obj, Visitor *v, const char *name,
                                void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     XenBlockVdev *vdev = qdev_get_prop_ptr(obj, prop);
     char *str, *p;
     const char *end;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c
index 202abd0e4b..0d3e57bba0 100644
--- a/hw/core/qdev-properties-system.c
+++ b/hw/core/qdev-properties-system.c
@@ -94,11 +94,6 @@  static void set_drive_helper(Object *obj, Visitor *v, const char *name,
     bool blk_created = false;
     int ret;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
@@ -230,17 +225,11 @@  static void get_chr(Object *obj, Visitor *v, const char *name, void *opaque,
 static void set_chr(Object *obj, Visitor *v, const char *name, void *opaque,
                     Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     CharBackend *be = qdev_get_prop_ptr(obj, prop);
     Chardev *s;
     char *str;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
@@ -311,18 +300,12 @@  static void get_mac(Object *obj, Visitor *v, const char *name, void *opaque,
 static void set_mac(Object *obj, Visitor *v, const char *name, void *opaque,
                     Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     MACAddr *mac = qdev_get_prop_ptr(obj, prop);
     int i, pos;
     char *str;
     const char *p;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
@@ -390,7 +373,6 @@  static void get_netdev(Object *obj, Visitor *v, const char *name,
 static void set_netdev(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     NICPeers *peers_ptr = qdev_get_prop_ptr(obj, prop);
     NetClientState **ncs = peers_ptr->ncs;
@@ -398,11 +380,6 @@  static void set_netdev(Object *obj, Visitor *v, const char *name,
     int queues, err = 0, i = 0;
     char *str;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
@@ -469,18 +446,12 @@  static void get_audiodev(Object *obj, Visitor *v, const char* name,
 static void set_audiodev(Object *obj, Visitor *v, const char* name,
                          void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     QEMUSoundCard *card = qdev_get_prop_ptr(obj, prop);
     AudioState *state;
     int err = 0;
     char *str;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
@@ -582,11 +553,6 @@  static void set_blocksize(Object *obj, Visitor *v, const char *name,
     uint64_t value;
     Error *local_err = NULL;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_size(v, name, &value, errp)) {
         return;
     }
@@ -686,7 +652,6 @@  static void get_reserved_region(Object *obj, Visitor *v, const char *name,
 static void set_reserved_region(Object *obj, Visitor *v, const char *name,
                                 void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     ReservedRegion *rr = qdev_get_prop_ptr(obj, prop);
     Error *local_err = NULL;
@@ -694,11 +659,6 @@  static void set_reserved_region(Object *obj, Visitor *v, const char *name,
     char *str;
     int ret;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_str(v, name, &str, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -754,17 +714,11 @@  const PropertyInfo qdev_prop_reserved_region = {
 static void set_pci_devfn(Object *obj, Visitor *v, const char *name,
                           void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     int32_t value, *ptr = qdev_get_prop_ptr(obj, prop);
     unsigned int slot, fn, n;
     char *str;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, NULL)) {
         if (!visit_type_int32(v, name, &value, errp)) {
             return;
@@ -848,7 +802,6 @@  static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name,
 static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name,
                                  void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     PCIHostDeviceAddress *addr = qdev_get_prop_ptr(obj, prop);
     char *str, *p;
@@ -857,11 +810,6 @@  static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name,
     unsigned long dom = 0, bus = 0;
     unsigned int slot = 0, func = 0;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
@@ -971,16 +919,10 @@  static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name,
 static void set_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name,
                                    void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     PCIExpLinkSpeed *p = qdev_get_prop_ptr(obj, prop);
     int speed;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_enum(v, name, &speed, prop->info->enum_table,
                          errp)) {
         return;
@@ -1056,16 +998,10 @@  static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name,
 static void set_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name,
                                    void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     PCIExpLinkWidth *p = qdev_get_prop_ptr(obj, prop);
     int width;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_enum(v, name, &width, prop->info->enum_table,
                          errp)) {
         return;
@@ -1128,16 +1064,10 @@  static void get_uuid(Object *obj, Visitor *v, const char *name, void *opaque,
 static void set_uuid(Object *obj, Visitor *v, const char *name, void *opaque,
                     Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     QemuUUID *uuid = qdev_get_prop_ptr(obj, prop);
     char *str;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index b924f13d58..92f48ecbf2 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -24,6 +24,19 @@  void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
     }
 }
 
+/* returns: true if property is allowed to be set, false otherwise */
+static bool qdev_prop_allow_set(Object *obj, const char *name,
+                                Error **errp)
+{
+    DeviceState *dev = DEVICE(obj);
+
+    if (dev->realized) {
+        qdev_prop_set_after_realize(dev, name, errp);
+        return false;
+    }
+    return true;
+}
+
 void qdev_prop_allow_set_link_before_realize(const Object *obj,
                                              const char *name,
                                              Object *val, Error **errp)
@@ -65,6 +78,11 @@  static void field_prop_set(Object *obj, Visitor *v, const char *name,
                            void *opaque, Error **errp)
 {
     Property *prop = opaque;
+
+    if (!qdev_prop_allow_set(obj, name, errp)) {
+        return;
+    }
+
     return prop->info->set(obj, v, name, opaque, errp);
 }
 
@@ -90,15 +108,9 @@  void qdev_propinfo_get_enum(Object *obj, Visitor *v, const char *name,
 void qdev_propinfo_set_enum(Object *obj, Visitor *v, const char *name,
                             void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     int *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_enum(v, name, ptr, prop->info->enum_table, errp);
 }
 
@@ -148,15 +160,9 @@  static void prop_get_bit(Object *obj, Visitor *v, const char *name,
 static void prop_set_bit(Object *obj, Visitor *v, const char *name,
                          void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     bool value;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_bool(v, name, &value, errp)) {
         return;
     }
@@ -208,15 +214,9 @@  static void prop_get_bit64(Object *obj, Visitor *v, const char *name,
 static void prop_set_bit64(Object *obj, Visitor *v, const char *name,
                            void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     bool value;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_bool(v, name, &value, errp)) {
         return;
     }
@@ -245,15 +245,9 @@  static void get_bool(Object *obj, Visitor *v, const char *name, void *opaque,
 static void set_bool(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     bool *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_bool(v, name, ptr, errp);
 }
 
@@ -278,15 +272,9 @@  static void get_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
 static void set_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
                       Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     uint8_t *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_uint8(v, name, ptr, errp);
 }
 
@@ -323,15 +311,9 @@  static void get_uint16(Object *obj, Visitor *v, const char *name,
 static void set_uint16(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     uint16_t *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_uint16(v, name, ptr, errp);
 }
 
@@ -356,15 +338,9 @@  static void get_uint32(Object *obj, Visitor *v, const char *name,
 static void set_uint32(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_uint32(v, name, ptr, errp);
 }
 
@@ -380,15 +356,9 @@  void qdev_propinfo_get_int32(Object *obj, Visitor *v, const char *name,
 static void set_int32(Object *obj, Visitor *v, const char *name, void *opaque,
                       Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     int32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_int32(v, name, ptr, errp);
 }
 
@@ -420,15 +390,9 @@  static void get_uint64(Object *obj, Visitor *v, const char *name,
 static void set_uint64(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_uint64(v, name, ptr, errp);
 }
 
@@ -444,15 +408,9 @@  static void get_int64(Object *obj, Visitor *v, const char *name,
 static void set_int64(Object *obj, Visitor *v, const char *name,
                       void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     int64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_int64(v, name, ptr, errp);
 }
 
@@ -495,16 +453,10 @@  static void get_string(Object *obj, Visitor *v, const char *name,
 static void set_string(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     char **ptr = qdev_get_prop_ptr(obj, prop);
     char *str;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
@@ -545,16 +497,10 @@  void qdev_propinfo_get_size32(Object *obj, Visitor *v, const char *name,
 static void set_size32(Object *obj, Visitor *v, const char *name, void *opaque,
                        Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
     uint64_t value;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_size(v, name, &value, errp)) {
         return;
     }
@@ -621,10 +567,6 @@  static void set_prop_arraylen(Object *obj, Visitor *v, const char *name,
     const char *arrayname;
     int i;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
     if (*alenptr) {
         error_setg(errp, "array size property %s may not be set more than once",
                    name);
@@ -864,15 +806,9 @@  static void get_size(Object *obj, Visitor *v, const char *name, void *opaque,
 static void set_size(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     visit_type_size(v, name, ptr, errp);
 }
 
diff --git a/hw/s390x/css.c b/hw/s390x/css.c
index 7a44320d12..496e2c5801 100644
--- a/hw/s390x/css.c
+++ b/hw/s390x/css.c
@@ -2372,18 +2372,12 @@  static void get_css_devid(Object *obj, Visitor *v, const char *name,
 static void set_css_devid(Object *obj, Visitor *v, const char *name,
                           void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     CssDevId *dev_id = qdev_get_prop_ptr(obj, prop);
     char *str;
     int num, n1, n2;
     unsigned int cssid, ssid, devid;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_str(v, name, &str, errp)) {
         return;
     }
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index ab27b6e848..54fac3851d 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -1331,16 +1331,10 @@  static void s390_pci_get_fid(Object *obj, Visitor *v, const char *name,
 static void s390_pci_set_fid(Object *obj, Visitor *v, const char *name,
                          void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     S390PCIBusDevice *zpci = S390_PCI_DEVICE(obj);
     Property *prop = opaque;
     uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_uint32(v, name, ptr, errp)) {
         return;
     }
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index 53569925a2..802979635c 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -1498,15 +1498,9 @@  static void set_nv_gpudirect_clique_id(Object *obj, Visitor *v,
                                        const char *name, void *opaque,
                                        Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
     uint8_t value, *ptr = qdev_get_prop_ptr(obj, prop);
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_uint8(v, name, &value, errp)) {
         return;
     }
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index f5cff4103b..3375fffb38 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -798,17 +798,11 @@  static void sparc_get_nwindows(Object *obj, Visitor *v, const char *name,
 static void sparc_set_nwindows(Object *obj, Visitor *v, const char *name,
                                void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     const int64_t min = MIN_NWINDOWS;
     const int64_t max = MAX_NWINDOWS;
     SPARCCPU *cpu = SPARC_CPU(obj);
     int64_t value;
 
-    if (dev->realized) {
-        qdev_prop_set_after_realize(dev, name, errp);
-        return;
-    }
-
     if (!visit_type_int(v, name, &value, errp)) {
         return;
     }