1 files changed, 9 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 3d854c9ae53a..67fa3fdc128f 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2365,6 +2365,15 @@ and is between 256 and 4096 characters. It is defined in the file
 
         switches=       [HW,M68k]
 
+        sysfs.deprecated=0|1 [KNL]
+                        Enable/disable old style sysfs layout for old udev
+                        on older distributions. When this option is enabled
+                        very new udev will not work anymore. When this option
+                        is disabled (or CONFIG_SYSFS_DEPRECATED not compiled)
+                        in older udev will not work anymore.
+                        Default depends on CONFIG_SYSFS_DEPRECATED_V2 set in
+                        the kernel configuration.
+
         sysrq_always_enabled
                         [KNL]
                         Ignore sysrq setting - this boot parameter will