On Tue, 12 Jan 2021, Denis Efremov wrote:
> Hi,
>
> Let's suppose I have this pattern:
> @fix exists@
> position p;
> @@
>
> binder_release_work(...)
> {
> ...
> switch (...) {
> * case BINDER_WORK_NODE: ... break;@p
> }
> ...
Add when any to the outer ...s
> }
>
> and I want to match binder_release_work() function in drivers/android/binder.c
> file (linux kernel, master)
>
> Seems like the rule is not enough, it gives nothing:
> $ spatch --cocci-file binder.cocci drivers/android/binder.c
> init_defs_builtins: /usr/lib64/coccinelle/standard.h
> HANDLING: drivers/android/binder.c
>
> 1) What can I do to reliable check that there is a special case in a switch?
> 2) Is it possible to check that there is no case handling with something like:
> switch (...) {
> ... when != case BINDER_WORK_NODE: ... break;
> }
I don't know if that will work. But you can do it with two rules. In the
first rule, you could put a position variable on the switch, and then in
the second rule, you could make a position variable that is required to be
different than the first one, and that is also attached to a switch.
julia
> Thanks,
> Denis
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