diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 826b6e1..e7848a0 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -315,6 +315,11 @@
 	aic79xx=	[HW,SCSI]
 			See Documentation/scsi/aic79xx.txt.
 
+	alignment=	[KNL,ARM]
+			Allow the default userspace alignment fault handler
+			behaviour to be specified.  Bit 0 enables warnings,
+			bit 1 enables fixups, and bit 2 sends a segfault.
+
 	amd_iommu=	[HW,X86-84]
 			Pass parameters to the AMD IOMMU driver in the system.
 			Possible values are: