linux-kernel - Re: [PATCH] arm64/kernel/probes: Use BUG_ON instead of if condition followed by BUG.

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Date:   Tue, 30 Mar 2021 13:08:02 +0100
From:   Will Deacon <will@...nel.org>
To:     zhouchuangao <zhouchuangao@...o.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Qais Yousef <qais.yousef@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/kernel/probes: Use BUG_ON instead of if condition
 followed by BUG.

On Tue, Mar 30, 2021 at 04:57:50AM -0700, zhouchuangao wrote:
> It can be optimized at compile time.

Hmm, I don't see it (and I also don't understand why we care). Do you have
numbers showing that this is worthwhile?

Will