[PATCH 2/2] iommu/amd: Clarify AMD IOMMUv2 initialization messages

From: Joerg Roedel
Date: Tue Nov 23 2021 - 05:55:51 EST


From: Joerg Roedel <jroedel@xxxxxxx>

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@xxxxxxxxxxxxxxx
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
---
drivers/iommu/amd/iommu_v2.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/iommu_v2.c
index 13cbeb997cc1..58da08cc3d01 100644
--- 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@xxxxxxx>\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:
--
2.33.1