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From: Markus Elfring <Markus.Elfring@web.de>
To: Sang-Heon Jeon <ekffu200098@gmail.com>,
	cocci@inria.fr, Julia Lawall <Julia.Lawall@inria.fr>,
	Nicolas Palix <nicolas.palix@imag.fr>
Cc: LKML <linux-kernel@vger.kernel.org>,
	kernel-janitors@vger.kernel.org,
	Simmo Saan <simmo.saan@gmail.com>
Subject: Re: [cocci] [PATCH 01/36] coccinelle: misc: add cond_return_no_effect.cocci
Date: Mon, 27 Jul 2026 11:51:04 +0200	[thread overview]
Message-ID: <5ffc7c46-525e-42c3-9530-8792c632ccb9@web.de> (raw)
In-Reply-To: <20260723184538.3888637-2-ekffu200098@gmail.com>

…
> +++ b/scripts/coccinelle/misc/cond_return_no_effect.cocci
> @@ -0,0 +1,121 @@
…
> +@depends on patch@
> +type T;
> +identifier collect.ret;
> +constant C;
> +@@
> +-	T ret = C;
> +	... when != ret
> +	    when strict
…

Previous transformation rules can have the effect that some variable definitions
would not be used any more.
Thus such an SmPL rule can look succinct for a possible source code clean-up.

I suggest to take also another look at information according to software
run time characteristics.
Software components are still improvable accordingly which can be seen by bug reports.

Example:
In-place parallelized run on a directory seems to be stuck after 17 hours
https://github.com/coccinelle/coccinelle/issues/416#issuecomment-5080158670

Regards,
Markus


  parent reply	other threads:[~2026-07-27  9:51 UTC|newest]

Thread overview: 91+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-23 18:45 [PATCH 00/36] treewide: remove conditional returns with no effect Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 01/36] coccinelle: misc: add cond_return_no_effect.cocci Sang-Heon Jeon
2026-07-24 11:19   ` [cocci] " Markus Elfring
2026-07-24 11:38     ` Julia Lawall
2026-07-24 11:47       ` Markus Elfring
2026-07-24 14:42     ` Sang-Heon Jeon
2026-07-24 15:32       ` [cocci] [1/36] " Markus Elfring
2026-07-24 16:33         ` Sang-Heon Jeon
2026-07-24 16:50           ` Markus Elfring
2026-07-25  5:46           ` Markus Elfring
2026-07-24 14:41   ` [PATCH 01/36] " Sang-Heon Jeon
2026-07-24 14:55     ` Julia Lawall
2026-07-24 16:02       ` [cocci] [1/36] " Markus Elfring
2026-07-24 16:48       ` [PATCH 01/36] " Sang-Heon Jeon
2026-07-26 11:30       ` [cocci] [1/36] " Markus Elfring
2026-07-26 11:54         ` Julia Lawall
2026-07-26 12:42           ` Markus Elfring
2026-07-27  9:51   ` Markus Elfring [this message]
2026-07-23 18:45 ` [PATCH 02/36] drm/amd: remove conditional return with no effect Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 03/36] drm/radeon: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 04/36] dpll: zl3073x: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 05/36] drm/i915: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 06/36] drm: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 07/36] net: ethernet: " Sang-Heon Jeon
2026-07-23 20:24   ` Niklas Söderlund
2026-07-23 20:35   ` Kiyanovski, Arthur
2026-07-23 18:45 ` [PATCH 08/36] net: " Sang-Heon Jeon
2026-07-23 19:04   ` Andrew Lunn
2026-07-23 18:45 ` [PATCH 09/36] net: intel: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 10/36] wifi: " Sang-Heon Jeon
2026-07-24  0:37   ` Ping-Ke Shih
2026-07-23 18:45 ` [PATCH 11/36] ipvs: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 12/36] media: " Sang-Heon Jeon
2026-07-23 20:26   ` Niklas Söderlund
2026-08-07  7:52   ` Eugen Hristev
2026-08-07 12:28   ` Laurent Pinchart
2026-08-10  9:41     ` Sakari Ailus
2026-07-23 18:45 ` [PATCH 13/36] ALSA: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 14/36] ASoC: " Sang-Heon Jeon
2026-07-24  5:05   ` Mukunda,Vijendar
2026-07-23 18:45 ` [PATCH 15/36] iio: " Sang-Heon Jeon
2026-07-23 21:46   ` Joshua Crofts
2026-07-24  0:38   ` Jonathan Cameron
2026-07-24 15:22     ` Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 16/36] Input: " Sang-Heon Jeon
2026-07-24 19:30   ` Dmitry Torokhov
2026-07-25 12:10     ` Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 17/36] clk: " Sang-Heon Jeon
2026-07-24 15:49   ` Brian Masney
2026-07-23 18:45 ` [PATCH 18/36] crypto: drivers - " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 19/36] dmaengine: qcom_hidma: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 20/36] stm class: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 21/36] RDMA/ocrdma: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 22/36] iommu/s390: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 23/36] dm vdo: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 24/36] pinctrl: mediatek: " Sang-Heon Jeon
2026-07-25 13:50   ` Linus Walleij
2026-07-23 18:45 ` [PATCH 25/36] platform/x86: toshiba_haps: " Sang-Heon Jeon
2026-07-24 15:44   ` Ilpo Järvinen
2026-07-24 16:21     ` Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 26/36] power: supply: pm8916_lbc: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 27/36] RAS/AMD/ATL: " Sang-Heon Jeon
2026-07-23 19:44   ` Borislav Petkov
2026-07-23 18:45 ` [PATCH 28/36] regulator: wm831x-isink: " Sang-Heon Jeon
2026-07-24  8:24   ` Charles Keepax
2026-07-23 18:45 ` [PATCH 29/36] rtc: pcf2127: " Sang-Heon Jeon
2026-07-26 15:15   ` Bruno Thomsen
2026-08-20 21:28   ` (subset) " Alexandre Belloni
2026-07-23 18:45 ` [PATCH 30/36] scsi: mpt3sas: " Sang-Heon Jeon
2026-07-29  2:31   ` Martin K. Petersen
2026-07-23 18:45 ` [PATCH 31/36] thermal/drivers/k3_bandgap: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 32/36] USB: serial: ch341: " Sang-Heon Jeon
2026-07-23 18:45 ` [PATCH 33/36] usb: typec: fusb302: " Sang-Heon Jeon
2026-07-27 13:35   ` Heikki Krogerus
2026-07-23 18:45 ` [PATCH 34/36] smb: client: " Sang-Heon Jeon
2026-07-23 20:27   ` Steve French
2026-07-24 17:12     ` Sang-Heon Jeon
2026-07-25 16:58       ` Steve French
2026-07-23 18:45 ` [PATCH 35/36] cpupower: " Sang-Heon Jeon
2026-08-04 19:15   ` Shuah
2026-07-23 18:45 ` [PATCH 36/36] memblock: " Sang-Heon Jeon
2026-07-24 21:48 ` [PATCH 00/36] treewide: remove conditional returns " Jakub Kicinski
2026-07-27  8:30   ` Jani Nikula
2026-07-27 11:08     ` Sang-Heon Jeon
2026-07-27 11:36       ` Jani Nikula
2026-07-24 23:35 ` (subset) " Sebastian Reichel
2026-07-27 12:12 ` Mark Brown
2026-07-27 12:59   ` Sang-Heon Jeon
2026-07-27 12:26 ` (subset) " Mark Brown
2026-08-06 19:06 ` Martin K. Petersen
2026-08-11 18:51 ` Vinod Koul

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