Attachment 117412 Details for Bug 91481 – Path to make drm_dp_send_link_address set link_address_sent before hotplug handler changes the pointer to it

Path to make drm_dp_send_link_address set link_address_sent before hotplug handler changes the pointer to it

dp-mst-hotplug.diff (text/plain), 1.08 KB, created by Adam J. Richter on 2015-07-28 05:18:27 UTC

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Creator: Adam J. Richter

Created: 2015-07-28 05:18:27 UTC

Size: 1.08 KB

patch

obsolete

>--- linux-4.2-rc4/drivers/gpu/drm/drm_dp_mst_topology.c.orig	2015-07-27 20:57:48.998541059 -0700
>+++ linux-4.2-rc4/drivers/gpu/drm/drm_dp_mst_topology.c	2015-07-27 21:18:36.578989127 -0700
>@@ -1104,10 +1104,8 @@ static void drm_dp_add_port(struct drm_d
> 		drm_dp_port_teardown_pdt(port, old_pdt);
> 
> 		ret = drm_dp_port_setup_pdt(port);
>-		if (ret == true) {
>+		if (ret == true)
> 			drm_dp_send_link_address(mstb->mgr, port->mstb);
>-			port->mstb->link_address_sent = true;
>-		}
> 	}
> 
> 	if (created && !port->input) {
>@@ -1201,10 +1199,10 @@ static void drm_dp_check_and_send_link_a
> {
> 	struct drm_dp_mst_port *port;
> 	struct drm_dp_mst_branch *mstb_child;
>-	if (!mstb->link_address_sent) {
>+
>+	if (!mstb->link_address_sent)
> 		drm_dp_send_link_address(mgr, mstb);
>-		mstb->link_address_sent = true;
>-	}
>+
> 	list_for_each_entry(port, &mstb->ports, next) {
> 		if (port->input)
> 			continue;
>@@ -1474,6 +1472,8 @@ static int drm_dp_send_link_address(stru
> 
> 	drm_dp_queue_down_tx(mgr, txmsg);
> 
>+	mstb->link_address_sent = true;
>+	
> 	ret = drm_dp_mst_wait_tx_reply(mstb, txmsg);
> 	if (ret > 0) {
> 		int i;

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Attachments on bug 91481: 117412

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