On Thu, 2011-12-29 at 14:32 +0100, Lars-Peter Clausen wrote: > It does not match because there is no mtd_read(&retlen) on all possible paths. > In your case there are two paths in the switch statement. > If you'd want it to match anyway you can use a subexpression. e.g. > '<+...mtd_read(&retlen)...+>'. But this has the downside that retlen might be > used uninitialized at a later point.
Thanks. I've used the "?" thingy instead, which I understand as "this line is optional". But I do not understand what "<+..." means. I guess I need to read more docs, any suggestion? Although when I first read this page: http://www.emn.fr/z-info/coccinelle/docs/main_grammar004.html which says "? represents at most one match of the given pattern", I did not really understand what "?" means. Why not to phrase it in a more human-friendly way like "? represents an optional match" :-) ? Or I misunderstand something? -- Best Regards, Artem Bityutskiy
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