linux-kernel - Re: [PATCH v2 1/2] regmap: Simplify implementation of the regmap_read_poll

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Date:   Mon, 20 Apr 2020 16:35:37 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Dejin Zheng <zhengdejin5@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH v2 1/2] regmap: Simplify implementation of the
 regmap_read_poll_timeout() macro

…
> +++ b/include/linux/regmap.h
…
> @@ -122,26 +123,10 @@ struct reg_sequence {
>   */
>  #define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \
>  ({ \
…
> +	int __ret, __tmp; \
> +	__tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \
> +			sleep_us, timeout_us, false, (map), (addr), &(val)); \
> +	__ret ?: __tmp; \
>  })

* Would you like to delete double underscores from these variable names?

* I find another implementation detail suspicious.
  Should the parameters “sleep_us” and “timeout_us” be enclosed by
  additional parentheses (similar to four other macro arguments)?

* Can the tag “Fixes” be relevant also for such adjustments?

Regards,
Markus