Re: [PATCH v2 02/21] coccinelle: misc: Add secs_to_jiffies script

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Le 15/11/2024 à 22:26, Easwar Hariharan a écrit :
> Suggested-by: Anna-Maria Behnsen <anna-maria@xxxxxxxxxxxxx>
> Signed-off-by: Easwar Hariharan <eahariha@xxxxxxxxxxxxxxxxxxx>
> ---
>   scripts/coccinelle/misc/secs_to_jiffies.cocci | 21 +++++++++++++++++++++
>   1 file changed, 21 insertions(+)
> 
> diff --git a/scripts/coccinelle/misc/secs_to_jiffies.cocci b/scripts/coccinelle/misc/secs_to_jiffies.cocci
> new file mode 100644
> index 0000000000000000000000000000000000000000..af762b1c0aac8f044f21150bfaafd9efc834ee87
> --- /dev/null
> +++ b/scripts/coccinelle/misc/secs_to_jiffies.cocci
> @@ -0,0 +1,21 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +///
> +/// Find usages of:
> +/// - msecs_to_jiffies(value*1000)
> +/// - msecs_to_jiffies(value*MSEC_PER_SEC)
> +///
> +// Confidence: High
> +// Copyright: (C) 2024 Easwar Hariharan Microsoft
> +//
> +// Keywords: secs, seconds, jiffies
> +//
> +
> +@@ constant C; @@
> +
> +- msecs_to_jiffies(C * 1000)
> ++ secs_to_jiffies(C)
> +
> +@@ constant C; @@
> +
> +- msecs_to_jiffies(C * MSEC_PER_SEC)
> ++ secs_to_jiffies(C)
> 
Hi,

	@@ constant C =~ "000"; @@

	* msecs_to_jiffies(C)

also spots things like msecs_to_jiffies(1000)

I'm not sure that coccinelle is enable to capture part of the regex to automate the removal of the 000 when converting from ms to s.

Just my 2c,

CJ




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