Thread (135 messages) 135 messages, 18 authors, 2007-03-20

Re: [patch 03/26] Xen-paravirt_ops: use paravirt_nop to consistently mark no-op operations

From: Ingo Molnar <hidden>
Date: 2007-03-16 09:44:54
Also in: lkml, xen-devel

* Jeremy Fitzhardinge [off-list ref] wrote:
Add a _paravirt_nop function for use as a stub for no-op operations, 
and paravirt_nop #defined void * version to make using it easier 
(since all its uses are as a void *).

This is useful to allow the patcher to automatically identify noop 
operations so it can simply nop out the callsite.
Acked-by: Ingo Molnar <redacted>
+void _paravirt_nop(void);
+#define paravirt_nop	((void *)_paravirt_nop)
but only as a cleanup of the current open-coded (void *) casts. My 
problem with this is that it loses the types. Not that there is much to 
check for, but still, this adds some assumptions about how function 
calls look like.

	Ingo
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