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a9b2c446e3
The dynamic array stored in the ring buffer already carries its own length in the array metadata. There is no need to also store it as a separate scalar field in the entry struct. Drop __field(unsigned int, len) and the corresponding __entry->len assignment, and use __get_dynamic_array_len(data) in the TP_printk for both the len=%u format argument and the __print_hex() size argument. This saves 4 bytes per event on the ring buffer. Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com> Suggested-by: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link: https://patch.msgid.link/20260615-add-tracepoints-for-qcom-geni-serial-v5-1-2efa4c97e0e2@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>