This is a note to let you know that I've just added the patch titled
iommu/amd: Clarify AMD IOMMUv2 initialization messages
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iommu-amd-clarify-amd-iommuv2-initialization-messages.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 717e88aad37befedfd531378b632e794e24e9afb Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@xxxxxxx>
Date: Tue, 23 Nov 2021 11:55:07 +0100
Subject: iommu/amd: Clarify AMD IOMMUv2 initialization messages
From: Joerg Roedel <jroedel@xxxxxxx>
commit 717e88aad37befedfd531378b632e794e24e9afb upstream.
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>
Link: https://lore.kernel.org/r/20211123105507.7654-3-joro@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iommu/amd/iommu_v2.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/iommu/amd/iommu_v2.c
+++ b/drivers/iommu/amd/iommu_v2.c
@@ -928,10 +928,8 @@ 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.
@@ -946,6 +944,8 @@ 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:
Patches currently in stable-queue which might be from jroedel@xxxxxxx are
queue-5.15/iommu-amd-clarify-amd-iommuv2-initialization-messages.patch
queue-5.15/iommu-rockchip-fix-page_desc_hi_masks-for-rk3568.patch
queue-5.15/iommu-vt-d-fix-unmap_pages-support.patch
