RE: [PATCH 00/13] lib/generic-radix-tree: genradix bug fix and optimisations.

[David Laight]

From: David Laight
> Sent: 26 August 2020 08:36
...
> I'm going to try marking the lookup functions with '__attribute__ ((pure))'.
> That should help the sctp code that does repeated SCTP_SI().
> In reality I want to mark them __attribute__ ((const)) - including the
> inline wrappers, but that isn't allowed if they read memory.

Neither pure nor const makes any difference.
Even to code that like:
	if (SCTP_SO(...)->ext)
		SCTP_SO(...)->ext->foo = 0;

	David

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