diff mbox series

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

Message ID 20241115-converge-secs-to-jiffies-v2-2-911fb7595e79@linux.microsoft.com
State Superseded
Headers show
Series Converge on using secs_to_jiffies() | expand

Commit Message

Easwar Hariharan Nov. 15, 2024, 9:26 p.m. UTC
Suggested-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
---
 scripts/coccinelle/misc/secs_to_jiffies.cocci | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

Comments

Easwar Hariharan Nov. 18, 2024, 6:09 p.m. UTC | #1
On 11/15/2024 10:05 PM, Christophe JAILLET wrote:
> Le 15/11/2024 à 22:26, Easwar Hariharan a écrit :
>> Suggested-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
>> Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
>> ---
>>   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

Thank you, I'll try that rule for the later parts. Thank you all for
helping with writing Coccinelle rules, I'm not familiar with
metaprogramming in general and Coccinelle in particular, so these are
super helpful.

- Easwar
Easwar Hariharan Nov. 18, 2024, 6:14 p.m. UTC | #2
On 11/16/2024 1:52 AM, Christophe Leroy wrote:
> 
> 
> Le 15/11/2024 à 22:26, Easwar Hariharan a écrit :
>> [Vous ne recevez pas souvent de courriers de
>> eahariha@linux.microsoft.com. Découvrez pourquoi ceci est important à
>> https://aka.ms/LearnAboutSenderIdentification ]
>>
> 
> There should be some explaination in the commit message, what the script
> does for instance.
> 

Thanks, will expand on this in v3.

- Easwar
diff mbox series

Patch

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)