Make devPrivates lookup functions ABI instead of static inlines.

This is required to preserve compatibility across changes to the
internal representation of the privates list.
(cherry picked from commit 2d7ba09dc4)

dix/privates.c

@@ -39,6 +39,12 @@ from The Open Group.
 #include "colormapst.h"
 #include "inputstr.h"
 
+struct _Private {
+    DevPrivateKey      key;
+    pointer            value;
+    struct _Private    *next;
+};
+
 typedef struct _PrivateDesc {
     DevPrivateKey key;
     unsigned size;
@@ -116,6 +122,65 @@ dixAllocatePrivate(PrivateRec **privates, const DevPrivateKey key)
     return &ptr->value;
 }
 
+/*
+ * Look up a private pointer.
+ */
+_X_EXPORT pointer
+dixLookupPrivate(PrivateRec **privates, const DevPrivateKey key)
+{
+    PrivateRec *rec = *privates;
+    pointer *ptr;
+
+    while (rec) {
+	if (rec->key == key)
+	    return rec->value;
+	rec = rec->next;
+    }
+
+    ptr = dixAllocatePrivate(privates, key);
+    return ptr ? *ptr : NULL;
+}
+
+/*
+ * Look up the address of a private pointer.
+ */
+_X_EXPORT pointer *
+dixLookupPrivateAddr(PrivateRec **privates, const DevPrivateKey key)
+{
+    PrivateRec *rec = *privates;
+
+    while (rec) {
+	if (rec->key == key)
+	    return &rec->value;
+	rec = rec->next;
+    }
+
+    return dixAllocatePrivate(privates, key);
+}
+
+/*
+ * Set a private pointer.
+ */
+_X_EXPORT int
+dixSetPrivate(PrivateRec **privates, const DevPrivateKey key, pointer val)
+{
+    PrivateRec *rec;
+
+ top:
+    rec = *privates;
+    while (rec) {
+	if (rec->key == key) {
+	    rec->value = val;
+	    return TRUE;
+	}
+	rec = rec->next;
+    }
+
+    if (!dixAllocatePrivate(privates, key))
+	return FALSE;
+    goto top;
+}
+
 /*
  * Called to free privates at object deletion time.
  */

hw/xfree86/loader/dixsym.c

@@ -265,6 +265,9 @@ _X_HIDDEN void *dixLookupTab[] = {
     SYMFUNC(dixRegisterPrivateInitFunc)
     SYMFUNC(dixRegisterPrivateDeleteFunc)
     SYMFUNC(dixAllocatePrivate)
+    SYMFUNC(dixLookupPrivate)
+    SYMFUNC(dixLookupPrivateAddr)
+    SYMFUNC(dixSetPrivate)
     SYMFUNC(dixFreePrivates)
     SYMFUNC(dixRegisterPrivateOffset)
     SYMFUNC(dixLookupPrivateOffset)

include/privates.h

@@ -20,12 +20,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *****************************************************************/
 
 typedef void *DevPrivateKey;
-
-typedef struct _Private {
-    DevPrivateKey	key;
-    pointer		value;
-    struct _Private	*next;
-} PrivateRec;
+struct _Private;
+typedef struct _Private PrivateRec;
 
 /*
  * Request pre-allocated private space for your driver/module.
@@ -43,61 +39,20 @@ dixAllocatePrivate(PrivateRec **privates, const DevPrivateKey key);
 /*
  * Look up a private pointer.
  */
-static _X_INLINE pointer
-dixLookupPrivate(PrivateRec **privates, const DevPrivateKey key)
-{
-    PrivateRec *rec = *privates;
-    pointer *ptr;
-
-    while (rec) {
-	if (rec->key == key)
-	    return rec->value;
-	rec = rec->next;
-    }
-
-    ptr = dixAllocatePrivate(privates, key);
-    return ptr ? *ptr : NULL;
-}
+pointer
+dixLookupPrivate(PrivateRec **privates, const DevPrivateKey key);
 
 /*
  * Look up the address of a private pointer.
  */
-static _X_INLINE pointer *
-dixLookupPrivateAddr(PrivateRec **privates, const DevPrivateKey key)
-{
-    PrivateRec *rec = *privates;
-
-    while (rec) {
-	if (rec->key == key)
-	    return &rec->value;
-	rec = rec->next;
-    }
-
-    return dixAllocatePrivate(privates, key);
-}
+pointer *
+dixLookupPrivateAddr(PrivateRec **privates, const DevPrivateKey key);
 
 /*
  * Set a private pointer.
  */
-static _X_INLINE int
-dixSetPrivate(PrivateRec **privates, const DevPrivateKey key, pointer val)
-{
-    PrivateRec *rec;
-
- top:
-    rec = *privates;
-    while (rec) {
-	if (rec->key == key) {
-	    rec->value = val;
-	    return TRUE;
-	}
-	rec = rec->next;
-    }
-
-    if (!dixAllocatePrivate(privates, key))
-	return FALSE;
-    goto top;
-}
+int
+dixSetPrivate(PrivateRec **privates, const DevPrivateKey key, pointer val);
 
 /*
  * Register callbacks to be called on private allocation/freeing.