Josh Triplett wrote:
> After analyzing net/sunrpc/xprtsock.i, I managed to reproduce the problem with
> the following test case:
>
> #define barrier() __asm__ __volatile__("": : :"memory")
>
> static void f(void)
> {
> barrier();
> l:
> barrier();
> }
>
>
> Apparently sparse doesn't like __asm__ __volatile__ after a label. Looks like
> the change to enable attributes on labels makes Sparse interpret the __asm__
> as an attribute on the label, not as a statement. If I locally revert the
> label attributes change, aec53c938c34c47cdbdd6824552e0f2a5104b1cb, this test
> case compiles without warning, as does net/sunrpc/xprtsock.c.
>
> The label attributes change needs some additional work, to make it only handle
> attribute and __attribute__, and nothing else.Fixed in current Git. - Josh Triplett
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