[PATCH 04/10] Clear the message data of all ap_bus requests

[Aruna Balakrishnaiah]

   Walk all devices in the LIST_HEAD(ap_device_list);

   struct ap_device {
        ...
        struct list_head list;          /* private list of all AP devices. */
       ...
        struct list_head pendingq;      /* List of message sent to AP queue. */
        int pendingq_count;             /* # requests on pendingq list. */
        struct list_head requestq;      /* List of message yet to be sent. */
        int requestq_count;             /* # requests on requestq list. */
        ...
   };

   struct ap_device *device;
   list_for_each_entry(device, &ap_device_list, list) {
        ...
   }

   For each ap device walk the pendingq and requestq list

   struct ap_message {
        struct list_head list;          /* Request queueing. */
        ...
        void *message;                  /* Pointer to message buffer. */
        size_t length;                  /* Message length. */
        ...
   };

   struct ap_message *apmsg;
   list_for_each_entry(apmsg, &device->pendingq, list) {
        ...
   }
   list_for_each_entry(apmsg, &device->requestq, list) {
        ...
   }

   For each message in pendingq and requestq clear the message

   memset(apmsg->message, 0, apmsg->length);

Signed-off-by: Aruna Balakrishnaiah <aruna at linux.vnet.ibm.com>
---
 eppic_scripts/ap_messages.c |   78 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 eppic_scripts/ap_messages.c

diff --git a/eppic_scripts/ap_messages.c b/eppic_scripts/ap_messages.c
new file mode 100644
index 0000000..f0e9f6f
--- /dev/null
+++ b/eppic_scripts/ap_messages.c
@@ -0,0 +1,78 @@
+string
+ap_device_opt()
+{
+	    return "l";
+}
+
+string
+ap_device_usage()
+{
+	    return "\n";
+}
+
+static void
+ap_device_showusage()
+{
+	    printf("usage : ap_device %s", ap_device_usage());
+}
+
+string
+ap_device_help()
+{
+	    return "Help";
+}
+
+int
+ap_device()
+{
+	int i;
+	struct list_head *next;
+	struct list_head *head;
+	struct ap_device *off = 0;
+
+	head = (struct list_head *)&ap_device_list;
+	next = (struct list_head *)head->next;
+
+	if (!next)
+		return 1;
+
+	while (next != head)
+	{
+		struct ap_device *device;
+		struct list_head *next1, *head1;
+
+		device = (struct ap_device *)((unsigned long)next - ((unsigned long)&(off->list)));
+
+		head1 = (struct list_head *)&(device->pendingq);
+		next1 = (struct list_head *)device->pendingq.next;
+
+		while (next1 != head1)
+		{
+			struct ap_message *apmsg;
+			apmsg = (struct ap_message *)next1;
+
+			memset((char *)apmsg->message, 'L', apmsg->length);
+			memset((char *)&(apmsg->length), 'L', 0x8);
+
+			next1 = (struct list_head *)apmsg->list.next;
+		}
+
+		head1 = (struct list_head *)&(device->requestq);
+		next1 = (struct list_head *)device->requestq.next;
+
+		while (next1 != head1)
+		{
+			struct ap_message *apmsg;
+			apmsg = (struct ap_message *)next1;
+
+			memset((char *)apmsg->message, 'L', apmsg->length);
+			memset((char *)&(apmsg->length), 'L', 0x8);
+
+			next1 = (struct list_head *)apmsg->list.next;
+		}
+
+		next = (struct list_head *)device->list.next;
+	}
+
+	return 1;
+}