From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Mon, 24 Sep 2018 10:20:45 +0000 (+0300)
Subject: thunderbolt: Initialize after IOMMUs
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=eafa717bc145963c944bb0a64d16add683861b35;p=linux.git

thunderbolt: Initialize after IOMMUs

If IOMMU is enabled and Thunderbolt driver is built into the kernel
image, it will be probed before IOMMUs are attached to the PCI bus.
Because of this DMA mappings the driver does will not go through IOMMU
and start failing right after IOMMUs are enabled.

For this reason move the Thunderbolt driver initialization happen at
rootfs level.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index 88cff05a18085..5cd6bdfa068f9 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -1191,5 +1191,5 @@ static void __exit nhi_unload(void)
 	tb_domain_exit();
 }
 
-fs_initcall(nhi_init);
+rootfs_initcall(nhi_init);
 module_exit(nhi_unload);