Re: [PATCH 05/16] lib/test_bitmap: disable compile-time test if DEBUG_BITMAP() is enabled

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To: Yury Norov <yury.norov@xxxxxxxxx>
Subject: Re: [PATCH 05/16] lib/test_bitmap: disable compile-time test if DEBUG_BITMAP() is enabled
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Tue, 19 Jul 2022 00:10:42 +0300
Cc: linux-kernel@xxxxxxxxxxxxxxx, Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Alexey Klimov <aklimov@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Ben Segall <bsegall@xxxxxxxxxx>, Christoph Lameter <cl@xxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>, Dennis Zhou <dennis@xxxxxxxxxx>, Dietmar Eggemann <dietmar.eggemann@xxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>, Frederic Weisbecker <fweisbec@xxxxxxxxx>, Guenter Roeck <linux@xxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Isabella Basso <isabbasso@xxxxxxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Juri Lelli <juri.lelli@xxxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Martin KaFai Lau <kafai@xxxxxx>, Mel Gorman <mgorman@xxxxxxx>, Miroslav Benes <mbenes@xxxxxxx>, Nathan Chancellor <nathan@xxxxxxxxxx>, "Paul E . McKenney" <paulmck@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Randy Dunlap <rdunlap@xxxxxxxxxxxxx>, Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>, Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>, Song Liu <songliubraving@xxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Valentin Schneider <vschneid@xxxxxxxxxx>, Vincent Guittot <vincent.guittot@xxxxxxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, Yonghong Song <yhs@xxxxxx>, linux-mm@xxxxxxxxx, netdev@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx
In-reply-to: <20220718192844.1805158-6-yury.norov@gmail.com>
Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo
References: <20220718192844.1805158-1-yury.norov@gmail.com> <20220718192844.1805158-6-yury.norov@gmail.com>

On Mon, Jul 18, 2022 at 12:28:33PM -0700, Yury Norov wrote:
> CONFIG_DEBUG_BITMAP, when enabled, injects __bitmap_check_params()
> into bitmap functions. It prevents compiler from compile-time
> optimizations, which makes corresponding test fail.

Does it stays the same for trace points?

-- 
With Best Regards,
Andy Shevchenko

References:
- [PATCH 00/16] Introduce DEBUG_BITMAP config option and bitmap_check_params()
  - From: Yury Norov
- [PATCH 05/16] lib/test_bitmap: disable compile-time test if DEBUG_BITMAP() is enabled
  - From: Yury Norov

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