Re: intended use of "safe"?
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On Thu, Aug 11, 2011 at 10:14 AM, Ben Pfaff <blp@xxxxxxxxxxxxxxx> wrote: > What is the intended use of the sparse "safe" attribute? I do > not see any uses of it in Linux (although there is a __safe macro > for it). I don't see any documentation for it either. I don't know much about the safe attribute either. I find out the commit which introduce the safe attribute by "git blame". If a pointer is never NULL, there is not need to test the pointer. Chris commit 98f14350c26518f0f5c45632d145a218d468d8b8 Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> Date: Fri Apr 16 18:19:30 2004 -0700 Introduce "safe" pointer expressions. These are defined to never be NULL or nontrapping, and could help code generation, but right now only cause a warning if they are tested in a conditional. -- To unsubscribe from this list: send the line "unsubscribe linux-sparse" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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