linux-kernel - Re: [PATCH 1/2] tracing: Simplify & fix saved

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Date:   Thu, 1 Jul 2021 11:12:54 -0700
From:   Paul Burton <paulburton@...gle.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Joel Fernandes <joelaf@...gle.com>, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>, stable@...r.kernel.org
Subject: Re: [PATCH 1/2] tracing: Simplify & fix saved_tgids logic

On Thu, Jul 01, 2021 at 02:07:54PM -0400, Steven Rostedt wrote:
> On Thu, 1 Jul 2021 10:31:59 -0700
> Paul Burton <paulburton@...gle.com> wrote:
> 
> > I was tempted to just add the redundant checks anyway (pick your battles
> > and all) but for show() in particular it wound up making things seem
> > non-sensical to me ("display the value describing this non-NULL pointer
> > into tgid_map only if tgid_map is not NULL?").
> 
> I agree with your assessment, and will actually take your first patch,
> as I don't think the comment is that helpful,

Thanks - agreed, the comment doesn't add much.

> not to mention, we don't
> use '//' comments in the kernel, so that would have to be changed.

D'oh! Apparently a year away from the kernel melted my internal style
checker. Interestingly though, checkpatch didn't complain about this as
I would have expected...

Thanks,
    Paul