I'm using ftrace to trace ip_local_out() in kernel 5.4.20. I'm sure ip_local_out() is available to trace: /sys/kernel/debug/tracing # cat available_filter_funct
datastep
angular-in-memory-web-api
apereo
extrapolation
sikuli-script
react-animations
sails-postgresql
facial-identification
bintray
ios-settings-bundle
bull
verbosegc
angular-localize
logbook
gesture-recognition
cmake-gui
tpagecontrol
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imagefield
function-definition
diagnostic-tools
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dataiku
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