Re: [RFC] Re: [PATCH v3 1/2] tracing/syscalls: Rename variable 'nr' to '__syscall_nr'

From: Peter Zijlstra
Date: Sat Feb 27 2016 - 10:14:26 EST

On Fri, Feb 26, 2016 at 10:57:13AM -0300, Arnaldo Carvalho de Melo wrote:

> Ingo, Peter, have you guys followed this case?
> Summary: Some tracepoint have multiple fields with the same name, 'nr',
> the first one is a unique syscall ID, the other is a syscall
> argument:

I'm all for pushing the limits on tracepoint ABI. I'm all for making it
less rigid. So if we can get away with changing this under the promise
of helping fixup fallout, I'm all for it.

That means we can always just change tracepoints, and they're not really
ABI at all.