Messages in this thread | | | Subject | Re: [PATCH v2 5/5] Input: evdev - Switch to bitmap_zalloc() | From | Joe Perches <> | Date | Mon, 18 Jun 2018 13:40:20 -0700 |
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On Mon, 2018-06-18 at 22:56 +0300, Andy Shevchenko wrote: > On Mon, Jun 18, 2018 at 6:49 PM, Joe Perches <joe@perches.com> wrote: > > Perhaps bitmap_dup_user [or some better name] could or should > > be one of the helpers. > > Can you help with estimation how many existing users need this kind of > functionality? One of them evdev, which has an open coded variant.
My estimation via cocci script below is 1 existing user, so it's almost certainly not worthwhile.
$ cat copy_from_user.cocci @@ unsigned long *p; expression e1, e2; @@
* copy_from_user(p, e1, e2)
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