[Qemu-devel] [PATCH 01/10] qdev: remove PropertyInfo range checking

[Paolo Bonzini]

Range checking in PropertyInfo is now used only for pci_devfn
properties and some error reporting.  Remove all code that implements
it in the various property types, and the now unused fields.

Signed-off-by: Paolo Bonzini <address@hidden>
---
 hw/qdev-properties.c |  104 ++++++++++++--------------------------------------
 hw/qdev.h            |    2 -
 2 files changed, 24 insertions(+), 82 deletions(-)

diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index 2255ebb..af68ca5 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -91,34 +91,20 @@ static void set_uint8(Object *obj, Visitor *v, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint8_t value, *ptr = qdev_get_prop_ptr(dev, prop);
-    Error *local_err = NULL;
+    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_uint8(v, &value, name, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-    if (value >= prop->info->min && value <= prop->info->max) {
-        *ptr = value;
-    } else {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, (int64_t)value, prop->info->min,
-                  prop->info->max);
-    }
+    visit_type_uint8(v, ptr, name, errp);
 }
 
 PropertyInfo qdev_prop_uint8 = {
     .name  = "uint8",
     .get   = get_uint8,
     .set   = set_uint8,
-    .min   = 0,
-    .max   = 255,
 };
 
 /* --- 8bit hex value --- */
@@ -153,8 +139,6 @@ PropertyInfo qdev_prop_hex8 = {
     .print = print_hex8,
     .get   = get_uint8,
     .set   = set_uint8,
-    .min   = 0,
-    .max   = 255,
 };
 
 /* --- 16bit integer --- */
@@ -174,34 +158,20 @@ static void set_uint16(Object *obj, Visitor *v, void 
*opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint16_t value, *ptr = qdev_get_prop_ptr(dev, prop);
-    Error *local_err = NULL;
+    uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_uint16(v, &value, name, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-    if (value >= prop->info->min && value <= prop->info->max) {
-        *ptr = value;
-    } else {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, (int64_t)value, prop->info->min,
-                  prop->info->max);
-    }
+    visit_type_uint16(v, ptr, name, errp);
 }
 
 PropertyInfo qdev_prop_uint16 = {
     .name  = "uint16",
     .get   = get_uint16,
     .set   = set_uint16,
-    .min   = 0,
-    .max   = 65535,
 };
 
 /* --- 32bit integer --- */
@@ -211,10 +181,9 @@ static void get_uint32(Object *obj, Visitor *v, void 
*opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t value, *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    value = *ptr;
-    visit_type_uint32(v, &value, name, errp);
+    visit_type_uint32(v, ptr, name, errp);
 }
 
 static void set_uint32(Object *obj, Visitor *v, void *opaque,
@@ -222,26 +191,14 @@ static void set_uint32(Object *obj, Visitor *v, void 
*opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t value, *ptr = qdev_get_prop_ptr(dev, prop);
-    Error *local_err = NULL;
+    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_uint32(v, &value, name, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-    if (value >= prop->info->min && value <= prop->info->max) {
-        *ptr = value;
-    } else {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, (int64_t)value, prop->info->min,
-                  prop->info->max);
-    }
+    visit_type_uint32(v, ptr, name, errp);
 }
 
 static void get_int32(Object *obj, Visitor *v, void *opaque,
@@ -259,42 +216,26 @@ static void set_int32(Object *obj, Visitor *v, void 
*opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int32_t value, *ptr = qdev_get_prop_ptr(dev, prop);
-    Error *local_err = NULL;
+    int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 
     if (dev->state != DEV_STATE_CREATED) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
-    visit_type_int32(v, &value, name, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return;
-    }
-    if (value >= prop->info->min && value <= prop->info->max) {
-        *ptr = value;
-    } else {
-        error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, (int64_t)value, prop->info->min,
-                  prop->info->max);
-    }
+    visit_type_int32(v, ptr, name, errp);
 }
 
 PropertyInfo qdev_prop_uint32 = {
     .name  = "uint32",
     .get   = get_uint32,
     .set   = set_uint32,
-    .min   = 0,
-    .max   = 0xFFFFFFFFULL,
 };
 
 PropertyInfo qdev_prop_int32 = {
     .name  = "int32",
     .get   = get_int32,
     .set   = set_int32,
-    .min   = -0x80000000LL,
-    .max   = 0x7FFFFFFFLL,
 };
 
 /* --- 32bit hex value --- */
@@ -329,8 +270,6 @@ PropertyInfo qdev_prop_hex32 = {
     .print = print_hex32,
     .get   = get_uint32,
     .set   = set_uint32,
-    .min   = 0,
-    .max   = 0xFFFFFFFFULL,
 };
 
 /* --- 64bit integer --- */
@@ -851,7 +790,7 @@ static void set_pci_devfn(Object *obj, Visitor *v, void 
*opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t value, *ptr = qdev_get_prop_ptr(dev, prop);
     unsigned int slot, fn, n;
     Error *local_err = NULL;
     char *str = (char *)"";
@@ -864,7 +803,17 @@ static void set_pci_devfn(Object *obj, Visitor *v, void 
*opaque,
     visit_type_str(v, &str, name, &local_err);
     if (local_err) {
         error_free(local_err);
-        return set_int32(obj, v, opaque, name, errp);
+        local_err = NULL;
+        visit_type_int32(v, &value, name, &local_err);
+        if (local_err) {
+            error_propagate(errp, local_err);
+        } else if (value < -1 || value > 255) {
+            error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
+                      "pci_devfn");
+        } else {
+            *ptr = value;
+        }
+        return;
     }
 
     if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
@@ -900,8 +849,6 @@ PropertyInfo qdev_prop_pci_devfn = {
     .print = print_pci_devfn,
     .get   = get_int32,
     .set   = set_pci_devfn,
-    .min   = -1,
-    .max   = 255,
 };
 
 /* --- blocksize --- */
@@ -924,10 +871,9 @@ static void set_blocksize(Object *obj, Visitor *v, void 
*opaque,
         error_propagate(errp, local_err);
         return;
     }
-    if (value < prop->info->min || value > prop->info->max) {
+    if (value < 512 || value > 32768) {
         error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, (int64_t)value, prop->info->min,
-                  prop->info->max);
+                  dev->id?:"", name, (int64_t)value, 512L, 32768L);
         return;
     }
 
@@ -945,8 +891,6 @@ PropertyInfo qdev_prop_blocksize = {
     .name  = "blocksize",
     .get   = get_uint16,
     .set   = set_blocksize,
-    .min   = 512,
-    .max   = 65024,
 };
 
 /* --- public helpers --- */
diff --git a/hw/qdev.h b/hw/qdev.h
index ca5ce4f..224875d 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -129,8 +129,6 @@ struct PropertyInfo {
     const char *name;
     const char *legacy_name;
     const char **enum_table;
-    int64_t min;
-    int64_t max;
     int (*parse)(DeviceState *dev, Property *prop, const char *str);
     int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len);
     ObjectPropertyAccessor *get;
-- 
1.7.10.1