-Wimplicit-function-declaration

[Ian Pilcher]

Is the Fedora kernel package built with -Wimplicit-function-declaration?

I'm rebuilding the Fedora kernel with a patch that will hopefully fix an
issue with my Dell TB16 dock:

https://www.spinics.net/lists/linux-usb/msg157865.html

The kbuild test robot is showing a missing function declaration:

https://www.spinics.net/lists/linux-usb/msg157888.html

I looked at the relevant files, and it looks to me that the required
header file is included, albeit indirectly.

The RPM rebuild just completed, and this warning/error does not appear
in the build log, and I was wondering if this is significant (which it
wouldn't be if the build process doesn't have that warning enabled).