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: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20211123105507.7654-3-joro@8bytes.org

diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/iommu_v2.c
index 13cbeb997cc1a069302a11200be97ff0c2c1bd99..58da08cc3d01606af7932b63de41bca7e3b3bd53 100644 (file)
--- a/drivers/iommu/amd/iommu_v2.c
+++ b/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 <jroedel@suse.de>\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: