Below warnings are fixed:
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Unexpected
indentation.
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Block quote
ends without a blank line; unexpected unindent.
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Enumerated
list ends without a blank line; unexpected unindent.
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Unexpected
indentation.
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Block quote
ends without a blank line; unexpected unindent.
Fixes: 63a816749d86 ("iommu: Document usage of
"/sys/kernel/iommu_groups/<grp_id>/type" file")
Reported-by: Stephen Rothwell <s...@canb.auug.org.au>
Link:
https://lore.kernel.org/linux-next/20201126174851.200e0...@canb.auug.org.au/
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
.../ABI/testing/sysfs-kernel-iommu_groups | 33 ++++++++++---------
1 file changed, 17 insertions(+), 16 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-kernel-iommu_groups
b/Documentation/ABI/testing/sysfs-kernel-iommu_groups
index 407b1628d7fd..0fedbb0f94e4 100644
--- a/Documentation/ABI/testing/sysfs-kernel-iommu_groups
+++ b/Documentation/ABI/testing/sysfs-kernel-iommu_groups
@@ -40,23 +40,24 @@ KernelVersion: v5.11
Contact: Sai Praneeth Prakhya <sai.praneeth.prak...@intel.com>
Description: /sys/kernel/iommu_groups/<grp_id>/type shows the type of default
domain in use by iommu for this group. See include/linux/iommu.h
- for possible values. A privileged user could request kernel to
- change the group type by writing to this file. Presently, only
- three types of request are supported:
- 1. DMA: All the DMA transactions from the device in this group
- are translated by the iommu.
- 2. identity: All the DMA transactions from the device in this
- group are *not* translated by the iommu.
- 3. auto: Change to the type the device was booted with.
- Note:
- -----
+ for possible read values. A privileged user could request
kernel to
+ change the group type by writing to this file. Valid write
values:
+
+ ======== ======================================================
+ DMA All the DMA transactions from the device in this group
+ are translated by the iommu.
+ identity All the DMA transactions from the device in this group
+ are not translated by the iommu.
+ auto Change to the type the device was booted with.
+ ======== ======================================================
+
The default domain type of a group may be modified only when
- 1. The group has *only* one device
- 2. The device in the group is not bound to any device driver.
- So, the users must unbind the appropriate driver before
- changing the default domain type.
- Caution:
- --------
+
+ - The group has only one device.
+ - The device in the group is not bound to any device driver.
+ So, the users must unbind the appropriate driver before
+ changing the default domain type.
+
Unbinding a device driver will take away the driver's control
over the device and if done on devices that host root file
system could lead to catastrophic effects (the users might
--
2.25.1
