Re: [PATCH 2/2] perf: Drop the skip argument fromperf_arch_fetch_regs_caller

From: Peter Zijlstra
Date: Fri May 21 2010 - 06:24:47 EST


On Fri, 2010-05-21 at 10:11 +0200, Frederic Weisbecker wrote:
> +static inline void perf_fetch_caller_regs(struct pt_regs *regs)
> {
> - unsigned long ip;
> -
> memset(regs, 0, sizeof(*regs));

btw, do we really need that memset?

As long as we don't actually copy out to userspace, it really doesn't
matter what is in there, and we should be setting all relevant registers
anyway.

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