1TRACE_PRINTK(9)                  Driver Basics                 TRACE_PRINTK(9)
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NAME

6       trace_printk - printf formatting in the ftrace buffer
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SYNOPSIS

9       trace_printk(fmt, args...);
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ARGUMENTS

12       fmt
13           the printf format for printing
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15       args...
16           variable arguments
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NOTE

19       __trace_printk is an internal function for trace_printk and the ip is
20       passed in via the trace_printk macro.
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22       This function allows a kernel developer to debug fast path sections
23       that printk is not appropriate for. By scattering in various printk
24       like tracing in the code, a developer can quickly see where problems
25       are occurring.
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27       This is intended as a debugging tool for the developer only. Please
28       refrain from leaving trace_printks scattered around in your code.
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31Kernel Hackers Manual 2.6.         June 2019                   TRACE_PRINTK(9)
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