iommu/amd: Clarify AMD IOMMUv2 initialization messages

The messages printed on the initialization of the AMD IOMMUv2 driver
have caused some confusion in the past. Clarify the messages to lower
the confusion in the future.

Cc: [email protected]
Signed-off-by: Joerg Roedel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: joergroedel

drivers/iommu/amd/iommu_v2.c

@@ -929,10 +929,8 @@ static int __init amd_iommu_v2_init(void)
 {
 	int ret;
 
-	pr_info("AMD IOMMUv2 driver by Joerg Roedel <[email protected]>\n");
-
 	if (!amd_iommu_v2_supported()) {
-		pr_info("AMD IOMMUv2 functionality not available on this system\n");
+		pr_info("AMD IOMMUv2 functionality not available on this system - This is not a bug.\n");
 		/*
 		 * Load anyway to provide the symbols to other modules
 		 * which may use AMD IOMMUv2 optionally.
@@ -947,6 +945,8 @@ static int __init amd_iommu_v2_init(void)
 
 	amd_iommu_register_ppr_notifier(&ppr_nb);
 
+	pr_info("AMD IOMMUv2 loaded and initialized\n");
+
 	return 0;
 
 out: