Fixes

module/evdi_drm_drv.h

@@ -38,6 +38,23 @@
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_fb_helper.h>
 
+/*
+ * drm-next (>= 7.1.0) renamed the global atomic-state object and its helpers:
+ *   struct drm_atomic_state              -> struct drm_atomic_commit
+ *   drm_atomic_state_alloc/clear/put     -> drm_atomic_commit_alloc/clear/put
+ * The atomic-helper vtable callbacks (.atomic_flush/.atomic_update/...) and the
+ * state accessors (drm_atomic_get_{new,old}_*_state) now take a
+ * struct drm_atomic_commit *. evdi's source still uses the historical names, so
+ * alias them. The old identifiers are fully gone from the tree, so these
+ * whole-token macros are collision-free.
+ */
+#if KERNEL_VERSION(7, 1, 0) <= LINUX_VERSION_CODE
+#define drm_atomic_state		drm_atomic_commit
+#define drm_atomic_state_alloc		drm_atomic_commit_alloc
+#define drm_atomic_state_clear		drm_atomic_commit_clear
+#define drm_atomic_state_put		drm_atomic_commit_put
+#endif
+
 #include "evdi_debug.h"
 #include "tests/evdi_test.h"
 

module/evdi_platform_dev.c

@@ -140,7 +140,7 @@ void evdi_platform_device_link(struct platform_device *pdev,
 	}
 }
 
-void evdi_platform_device_unlink_if_linked_with(struct platform_device *pdev,
+bool evdi_platform_device_unlink_if_linked_with(struct platform_device *pdev,
 				struct device *parent)
 {
 	struct evdi_platform_device_data *data = platform_get_drvdata(pdev);
@@ -150,5 +150,7 @@ void evdi_platform_device_unlink_if_linked_with(struct platform_device *pdev,
 		data->symlinked = false;
 		data->parent = NULL;
 		EVDI_INFO("Detached from parent device\n");
+		return true;
 	}
+	return false;
 }

module/evdi_platform_dev.h

@@ -41,7 +41,7 @@ int evdi_platform_device_remove(struct platform_device *pdev);
 bool evdi_platform_device_is_free(struct platform_device *pdev);
 void evdi_platform_device_link(struct platform_device *pdev,
 				struct device *parent);
-void evdi_platform_device_unlink_if_linked_with(struct platform_device *pdev,
+bool evdi_platform_device_unlink_if_linked_with(struct platform_device *pdev,
 				struct device *parent);
 
 #endif

module/evdi_platform_drv.c

@@ -55,15 +55,15 @@ static int evdi_platform_drv_usb(__always_unused struct notifier_block *nb,
 
 	if (!usb_dev)
 		return 0;
-	if (action != BUS_NOTIFY_DEL_DEVICE)
+	if (action != USB_DEVICE_REMOVE)
 		return 0;
 
 	for (i = 0; i < EVDI_DEVICE_COUNT_MAX; ++i) {
 		pdev = g_ctx.devices[i];
 		if (!pdev)
 			continue;
-		evdi_platform_device_unlink_if_linked_with(pdev, &usb_dev->dev);
-		if (pdev->dev.parent == &usb_dev->dev) {
+		if (evdi_platform_device_unlink_if_linked_with(pdev, &usb_dev->dev) &&
+		    i >= evdi_initial_device_count) {
 			EVDI_INFO("Parent USB removed. Removing evdi.%d\n", i);
 			evdi_platform_dev_destroy(pdev);
 			evdi_platform_drv_context_lock((&g_ctx));