Re: [patch 01/10] compiler: define __attribute_unused__

Rusty Russell
2007-05-02T05:41:11Z

On Tue, 2007-05-01 at 21:28 -0700, David Rientjes wrote:
> For all supported versions of gcc (major version 3 and above), functions
> and variables may be declared with __attribute__((unused)) to suppress
> warnings if they are declared but unused.

Adding this macro doesn't give us anything that simply saying
"__attribute__((unused))" doesn't give. But it does add a layer of
kernel-specific indirection.

If we're going to get kernel-specific, I'd prefer to see:

__needed: suppress warning and don't discard,
__unneeded: suppress warning and might discard.

For me this fits better with how I think.

Rusty.