2 files changed, 7 insertions, 1 deletions

diff --git a/Documentation/trace/events.txt b/Documentation/trace/events.txt
index bb24c2a0e870..41911240c65c 100644
--- a/Documentation/trace/events.txt
+++ b/Documentation/trace/events.txt
@@ -183,7 +183,7 @@ The relational-operators depend on the type of the field being tested:
 
 The operators available for numeric fields are:
 
-==, !=, <, <=, >, >=
+==, !=, <, <=, >, >=, &
 
 And for string fields they are:
 
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index e1b653f7e1ca..0d883dc057d6 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -44,6 +44,7 @@ enum filter_op_ids
         OP_LE,
         OP_GT,
         OP_GE,
+        OP_BAND,
         OP_NONE,
         OP_OPEN_PAREN,
 };
@@ -54,6 +55,7 @@ struct filter_op {
         int precedence;
 };
 
+/* Order must be the same as enum filter_op_ids above */
 static struct filter_op filter_ops[] = {
         { OP_OR,        "||",           1 },
         { OP_AND,       "&&",           2 },
@@ -64,6 +66,7 @@ static struct filter_op filter_ops[] = {
         { OP_LE,        "<=",           5 },
         { OP_GT,        ">",            5 },
         { OP_GE,        ">=",           5 },
+        { OP_BAND,      "&",            6 },
         { OP_NONE,      "OP_NONE",      0 },
         { OP_OPEN_PAREN, "(",           0 },
 };
@@ -156,6 +159,9 @@ static int filter_pred_##type(struct filter_pred *pred, void *event)	\
         case OP_GE:                                                     \
                 match = (*addr >= val);                                 \
                 break;                                                  \
+        case OP_BAND:                                                   \
+                match = (*addr & val);                                  \
+                break;                                                  \
         default:                                                        \
                 break;                                                  \
         }                                                               \