1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e714a025c99d..c2619ef44a72 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2936,6 +2936,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                         initial READ(10) command);
                                 o = CAPACITY_OK (accept the capacity
                                         reported by the device);
+                                p = WRITE_CACHE (the device cache is ON
+                                        by default);
                                 r = IGNORE_RESIDUE (the device reports
                                         bogus residue values);
                                 s = SINGLE_LUN (the device has only one