linux-kernel - Re: [PATCH] kcsan: Optimize debugfs stats counters

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Date:   Wed, 12 Aug 2020 15:02:14 +0200
From:   Marco Elver <elver@...gle.com>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     kasan-dev <kasan-dev@...glegroups.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kcsan: Optimize debugfs stats counters

On Mon, 10 Aug 2020 at 10:06, Marco Elver <elver@...gle.com> wrote:
> Remove kcsan_counter_inc/dec() functions, as they perform no other
> logic, and are no longer needed.
>
> This avoids several calls in kcsan_setup_watchpoint() and
> kcsan_found_watchpoint(), as well as lets the compiler warn us about
> potential out-of-bounds accesses as the array's size is known at all
> usage sites at compile-time.
>
> Signed-off-by: Marco Elver <elver@...gle.com>
> ---
>  kernel/kcsan/core.c    | 22 +++++++++++-----------
>  kernel/kcsan/debugfs.c | 21 +++++----------------
>  kernel/kcsan/kcsan.h   | 12 ++++++------
>  kernel/kcsan/report.c  |  2 +-
>  4 files changed, 23 insertions(+), 34 deletions(-)

Hi Paul,

I think this one is good to apply. I do not expect conflicts with current -rcu.

Thanks,
-- Marco