diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index e3d8c2cdfc82a3f39d2be0f345eb9940b2a7647c..223681bfd0155ce148bc353bd766e07dd8c58fa4 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -242,6 +242,7 @@ our $UTF8	= qr{
 # There are still some false positives, but this catches most
 # common cases.
 our $typeTypedefs = qr{(?x:
+        (?![KMGTPE]iB)                      # IEC binary prefix (do not match)
         [A-Z][A-Z\d_]*[a-z][A-Za-z\d_]*     # camelcase
         | [A-Z][A-Z\d_]*AIOCB               # all uppercase
         | [A-Z][A-Z\d_]*CPU                 # all uppercase