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-rw-r--r--Documentation/trace/kprobetrace.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/trace/kprobetrace.rst b/Documentation/trace/kprobetrace.rst
index 8bfc75c90806..6224ddf34508 100644
--- a/Documentation/trace/kprobetrace.rst
+++ b/Documentation/trace/kprobetrace.rst
@@ -72,6 +72,8 @@ offset, and container-size (usually 32). The syntax is::
b<bit-width>@<bit-offset>/<container-size>
+Symbol type('symbol') is an alias of u32 or u64 type (depends on BITS_PER_LONG)
+which shows given pointer in "symbol+offset" style.
For $comm, the default type is "string"; any other type is invalid.
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