kernel: remove 'extern' from function prototypes #3202
Merged
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This is an alternative to PR #3183: instead of adding
externto function prototypes without it, this instead removesexternfrom all (?) function prototypes (and also in a few places in C files were it made no sense).The second commit was created by
git clang-format HEAD^to reformat all the modified function prototypes. The idea being that if we touch all those lines anyway, we might as well fix up their formatting at the same time. But of course if people dislike this, we can easily drop that second commit.Closes #3183