Messages in this thread | | | Date | Tue, 29 Jan 2013 20:30:05 +0300 | From | Dan Carpenter <> | Subject | Re: coccinelle and bitmask arithmetic (was: Re: [patch] TTY: synclink, small cleanup in dtr_rts()) |
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On Tue, Jan 29, 2013 at 05:19:43PM +0100, Julia Lawall wrote: > If the definition of a bitmask is an identifier in all capital letters, > that would be easy. Another possibility is such an identifier that is > defined to a value expressed beginning with 0x. Another possibility is > such an identifier that is sometimes used with & and | and sometimes used > with an arithmetic operation. I will give them a try. >
Oddly enough, this thread started because I wrote a script to do this in Smatch. It turns out not as useful as I had hoped, so I wasn't planning to push it.
Anyway, I've gzipped it and attached it. It's 350k because it has a list of 50k macros which were used as bit masks. Hopefully, it's helpful.
It generates 350 warnings, but they are almost all false positives. I have sent two patches based on the output.
regards, dan carpenter
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