On Thu, Sep 14, 2023 at 07:12:04AM +0800, Zhu Yanjun wrote: > 在 2023/9/14 4:50, Bob Pearson 写道: > > Li, > > > > I see that you removed the built-in newlines in the debug macros in rxe.h which is ok by me. But, > > I made tests for many times about adding newline speeding up flush messages. > With or without new line, I can not find out the difference on flushing > messages. Not sure if Li Zhijian found this difference in a specific > scenario or not. > And even without new line, after output the line, the message still goes to > a new line. I suspect if a newline is appended in the PRINTK > subsystem. Kernel standard is to have newlines in the format strings. Jason