Messages in this thread | | | Date | Mon, 8 Feb 2021 17:52:45 +0300 | From | Alexey Dobriyan <> | Subject | Re: [PATCH 1/5] sched: make struct task_struct::state 32-bit |
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On Mon, Feb 08, 2021 at 05:30:25PM +0300, Alexey Dobriyan wrote: > On Mon, Feb 08, 2021 at 11:34:18AM +0100, Peter Zijlstra wrote: > > On Sat, Feb 06, 2021 at 06:18:32PM +0300, Alexey Dobriyan wrote: > > > > > Silently delete "extern" from prototypes. > > > > NAK, extern is right. > > Extern is only necessary for variables.
Specifically C17, 6.2.2 p5 (linkage of identifiers):
if the declaration of an identifier for a function has no storage-class specifier, its linkage is determined exactly as if it were declared with the storage-class specifier "extern".
This is why nothing happens if "extern" is deleted.
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