From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 964BF6EB75; Tue, 16 Apr 2024 07:59:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.134.164.104 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713254360; cv=none; b=Of6L6Qmc0rcSf47VmoLhKO6XWka/c7VvKKSAOtlWtdjI5eYoMv4F0tRJXF0l0HiVa6vfQbXuTg4gVujlUUgDLX6mLXa0qm0tiCnK05kg5Pdq95wTrQGENT9kxm+/5tXSPJQw7SJr1wlYDDFNtZSqj08HfYE7mTo3w0Zynj/532w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713254360; c=relaxed/simple; bh=voBbJIs5uAgYDUqjFcHs+jru8gRP7nHzwE6pO6GxQa4=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type; b=WvSabyndNl9jSl/tl6RmEgcoZUFrDOX/7kesbOJoVhCsJgiWKSpfXXUAQ2u3RXc72t6mpKBlgq7N7t6z+jY7/QIDvAvsWeejaNTAccyTtuwtKLucvVMmR9mKEJwf/AW1RJXkxqKhO51sttktSfJzinXUjcYdDfKrl6SBXfY/VEI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inria.fr; spf=pass smtp.mailfrom=inria.fr; dkim=pass (1024-bit key) header.d=inria.fr header.i=@inria.fr header.b=HX44HljY; arc=none smtp.client-ip=192.134.164.104 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inria.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=inria.fr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=inria.fr header.i=@inria.fr header.b="HX44HljY" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inria.fr; s=dc; h=date:from:to:cc:subject:in-reply-to:message-id: references:mime-version; bh=HkEo4MtVcirZNUv8fDTMpgVQxCw+2pVcB+btO9EbU9A=; b=HX44HljYDCMdoNExUzlzltWtvSxZSxuHCSo5siE0NaIx2YcmZm5SE0it YznRJfyeUNER2AGpxSf0OUbVOanpOAAwZrit30QQEdkGlH1MXAPRJV7PN lJ0gLInzSOlZBckUxyGdVS9cIHfF6KtSF4dpIiDzzo0/wm6Kcw5NwBMqr U=; Authentication-Results: mail3-relais-sop.national.inria.fr; dkim=none (message not signed) header.i=none; spf=SoftFail smtp.mailfrom=julia.lawall@inria.fr; dmarc=fail (p=none dis=none) d=inria.fr X-IronPort-AV: E=Sophos;i="6.07,205,1708383600"; d="scan'208";a="84918570" Received: from dt-lawall.paris.inria.fr ([128.93.67.65]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Apr 2024 09:59:10 +0200 Date: Tue, 16 Apr 2024 09:59:10 +0200 (CEST) From: Julia Lawall To: Laurent Pinchart cc: =?ISO-8859-15?Q?Niklas_S=F6derlund?= , Ricardo Ribalda , Julia Lawall , Martin Tuma , Mauro Carvalho Chehab , Hans Verkuil , Hugues Fruchet , Alain Volmat , Maxime Coquelin , Alexandre Torgue , Paul Kocialkowski , Greg Kroah-Hartman , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Sakari Ailus , Thierry Reding , Jonathan Hunter , Sowjanya Komatineni , Luca Ceresoli , Matthias Brugger , AngeloGioacchino Del Regno , Hans Verkuil , Sergey Kozlov , Abylay Ospan , Ezequiel Garcia , Dmitry Osipenko , Stanimir Varbanov , Vikash Garodia , Bryan O'Donoghue , Bjorn Andersson , Konrad Dybcio , Benjamin Mugnier , Sylvain Petinot , Jacopo Mondi , Kieran Bingham , Pavel Machek , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-staging@lists.linux.dev, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org Subject: Re: [PATCH 00/35] media: Fix coccinelle warning/errors In-Reply-To: <20240416070843.GA31419@pendragon.ideasonboard.com> Message-ID: <4d8ea4c-ed5b-903d-a041-69c3cdd82d64@inria.fr> References: <20240415-fix-cocci-v1-0-477afb23728b@chromium.org> <20240415195348.GD22954@pendragon.ideasonboard.com> <20240415203304.GA3460978@ragnatech.se> <20240415213846.GB3460978@ragnatech.se> <20240416070843.GA31419@pendragon.ideasonboard.com> Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="8323329-408150081-1713254351=:3643" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-408150081-1713254351=:3643 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT On Tue, 16 Apr 2024, Laurent Pinchart wrote: > On Mon, Apr 15, 2024 at 11:38:46PM +0200, Niklas Söderlund wrote: > > On 2024-04-15 23:16:55 +0200, Ricardo Ribalda wrote: > > > On Mon, 15 Apr 2024 at 22:33, Niklas Söderlund wrote: > > > > On 2024-04-15 21:58:58 +0200, Ricardo Ribalda wrote: > > > > > On Mon, 15 Apr 2024 at 21:54, Laurent Pinchart wrote: > > > > > > > > > > > > Hi Ricardo, > > > > > > > > > > > > I'm afraid I won't have time to review any of this for the time being. > > > > > > Unless you would like me to put uvcvideo reviews on hold ;-) > > > > > > > > > > > > Jokes aside, my first reaction was that this feels like a bit of a waste > > > > > > of maintainer's time :-S > > > > > > > > > > This is part of the media-ci effort. > > Ah. Mentioning that in the cover letter would have helped. > > > > > > It is definitely not the most fun patches to do or review, but someone > > > > > has to do it :) > > > > > > > > > > The whole idea is that we want to get as little warnings as possible > > > > > from the static analysers, after this patchset we almost achieve that. > > > > > > > > I understand and I think it's a good goal to aim for zero warnings. But > > > > some of the fixes here are IMHO not helpful, for example I find this > > > > type of change counter productive. > > > > > > > > - return ret < 0 ? ret : 0; > > > > + > > > > + if (ret < 0) > > > > + return ret; > > > > + return 0; > > > > > > I was on the edge on those ones as well... > > > > > > Maybe we can try to fix the .cocci file to ignore that pattern? > > > https://lore.kernel.org/lkml/20240415-minimax-v1-1-5feb20d66a79@chromium.org/T/#u > > > > Thanks for looking into it! I think this is a good idea. > > I agree, this is the first type of change I saw in the series, and it > made me dispair for a moment :-) > > > > > Maybe it's better to disable this type of checks in the linter? I would be happy to get rid of it. The person who made the semantic patch originally expressed the opinion that maybe it could be useful sometimes, but I always discard these patches when 0-day forwards them to me for approval. When it's not a 0 value, using min and max can often improve readability, so I think it would be unfortunate to remove the semantic patch completely. julia > > > > > > > > > It is only 2 trivial uvc patches, I can ask someone from my team to > > > > > review it if you want and trust them ;) > > > > > > > > > > Regards! > > > > > > > > > > > On Mon, Apr 15, 2024 at 07:34:17PM +0000, Ricardo Ribalda wrote: > > > > > > > After this set is applied, these are the only warnings left: > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:223:4-10: preceding lock on line 267 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:230:3-9: preceding lock on line 267 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:236:4-10: preceding lock on line 267 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:245:3-9: preceding lock on line 267 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:251:3-9: preceding lock on line 267 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:257:3-9: preceding lock on line 267 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:272:3-9: preceding lock on line 267 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:598:4-10: preceding lock on line 627 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:598:4-10: preceding lock on line 689 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:606:3-9: preceding lock on line 627 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:606:3-9: preceding lock on line 689 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:648:3-9: preceding lock on line 627 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:648:3-9: preceding lock on line 689 > > > > > > > drivers/media/pci/ivtv/ivtv-fileops.c:692:4-10: preceding lock on line 689 > > > > > > > drivers/media/dvb-core/dvb_frontend.c:2897:1-7: preceding lock on line 2776 > > > > > > > drivers/media/dvb-core/dvb_frontend.c:2897:1-7: preceding lock on line 2786 > > > > > > > drivers/media/dvb-core/dvb_frontend.c:2897:1-7: preceding lock on line 2809 > > > > > > > drivers/media/dvb-frontends/stv090x.c:799:1-7: preceding lock on line 768 > > > > > > > drivers/media/usb/go7007/go7007-i2c.c:125:1-7: preceding lock on line 61 > > > > > > > drivers/media/rc/imon.c:1167:1-7: preceding lock on line 1153 > > > > > > > drivers/media/pci/cx18/cx18-scb.h:261:22-29: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:77:5-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:85:5-16: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:154:5-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:171:5-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:180:5-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:189:5-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:201:5-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:220:5-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_cmds.h:230:5-16: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:764:5-15: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1008:43-60: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1014:36-46: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1041:5-15: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1088:39-51: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1093:5-22: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1144:4-8: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1239:4-8: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1267:5-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/qcom/venus/hfi_helper.h:1272:4-13: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/common/siano/smscoreapi.h:619:5-13: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/common/siano/smscoreapi.h:669:6-13: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/common/siano/smscoreapi.h:1049:4-8: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/common/siano/smscoreapi.h:1055:4-8: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/dvb-frontends/mxl5xx_defs.h:171:4-8: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/dvb-frontends/mxl5xx_defs.h:182:4-8: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/allegro-dvt/nal-hevc.h:102:14-22: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/media/platform/xilinx/xilinx-dma.h:100:19-22: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > drivers/staging/media/atomisp/pci/atomisp_tpg.h:30:18-22: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) > > > > > > > > > > > > > > CI tested: > > > > > > > https://gitlab.freedesktop.org/linux-media/media-staging/-/commit/055b5211c68e721c3a7090be5373cf44859da1a7/pipelines?ref=ribalda%2Ftest-cocci > > > > > > > > > > > > > > Signed-off-by: Ricardo Ribalda > > > > > > > --- > > > > > > > Ricardo Ribalda (35): > > > > > > > media: pci: mgb4: Refactor struct resources > > > > > > > media: stb0899: Remove unreacheable code > > > > > > > media: uvcvideo: Refactor iterators > > > > > > > media: uvcvideo: Use max() macro > > > > > > > media: go7007: Use min and max macros > > > > > > > media: stm32-dcmipp: Remove redundant printk > > > > > > > media: staging: sun6i-isp: Remove redundant printk > > > > > > > media: dvb-frontends: tda18271c2dd: Remove casting during div > > > > > > > media: v4l: async: refactor v4l2_async_create_ancillary_links > > > > > > > staging: media: tegra-video: Use swap macro > > > > > > > media: s2255: Use refcount_t instead of atomic_t for num_channels > > > > > > > media: platform: mtk-mdp3: Use refcount_t for job_count > > > > > > > media: common: saa7146: Use min macro > > > > > > > media: dvb-frontends: drx39xyj: Use min macro > > > > > > > media: netup_unidvb: Use min macro > > > > > > > media: au0828: Use min macro > > > > > > > media: flexcop-usb: Use min macro > > > > > > > media: gspca: cpia1: Use min macro > > > > > > > media: stk1160: Use min macro > > > > > > > media: tegra-vde: Refactor timeout handling > > > > > > > media: venus: Use div64_u64 > > > > > > > media: i2c: st-mipid02: Use the correct div function > > > > > > > media: dvb-frontends: tda10048: Use the right div > > > > > > > media: tc358746: Use the correct div_ function > > > > > > > media: venus: Use the correct div_ function > > > > > > > media: venus: Refator return path > > > > > > > media: dib0700: Refator return path > > > > > > > media: usb: cx231xx: Refator return path > > > > > > > media: i2c: rdacm20: Refator return path > > > > > > > media: i2c: et8ek8: Refator return path > > > > > > > media: cx231xx: Refator return path > > > > > > > media: si4713: Refator return path > > > > > > > media: ttpci: Refator return path > > > > > > > media: hdpvr: Refator return path > > > > > > > media: venus: Refator return path > > > > > > > > > > > > > > drivers/media/common/saa7146/saa7146_hlp.c | 8 +++---- > > > > > > > drivers/media/dvb-frontends/drx39xyj/drxj.c | 9 +++----- > > > > > > > drivers/media/dvb-frontends/stb0899_drv.c | 5 ----- > > > > > > > drivers/media/dvb-frontends/tda10048.c | 3 +-- > > > > > > > drivers/media/dvb-frontends/tda18271c2dd.c | 4 ++-- > > > > > > > drivers/media/i2c/et8ek8/et8ek8_driver.c | 4 +++- > > > > > > > drivers/media/i2c/rdacm20.c | 5 ++++- > > > > > > > drivers/media/i2c/st-mipid02.c | 2 +- > > > > > > > drivers/media/i2c/tc358746.c | 3 +-- > > > > > > > drivers/media/pci/mgb4/mgb4_core.c | 4 ++-- > > > > > > > drivers/media/pci/mgb4/mgb4_regs.c | 2 +- > > > > > > > drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c | 2 +- > > > > > > > drivers/media/pci/ttpci/budget-core.c | 5 ++++- > > > > > > > .../media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c | 10 ++++----- > > > > > > > .../media/platform/mediatek/mdp3/mtk-mdp3-core.c | 6 ++--- > > > > > > > .../media/platform/mediatek/mdp3/mtk-mdp3-core.h | 2 +- > > > > > > > .../media/platform/mediatek/mdp3/mtk-mdp3-m2m.c | 6 ++--- > > > > > > > drivers/media/platform/nvidia/tegra-vde/h264.c | 6 ++--- > > > > > > > drivers/media/platform/qcom/venus/vdec.c | 15 +++++++------ > > > > > > > drivers/media/platform/qcom/venus/venc.c | 19 +++++++++------- > > > > > > > .../platform/st/stm32/stm32-dcmipp/dcmipp-core.c | 5 +---- > > > > > > > drivers/media/radio/si4713/radio-usb-si4713.c | 8 +++++-- > > > > > > > drivers/media/usb/au0828/au0828-video.c | 5 +---- > > > > > > > drivers/media/usb/b2c2/flexcop-usb.c | 5 +---- > > > > > > > drivers/media/usb/cx231xx/cx231xx-i2c.c | 16 +++++++++---- > > > > > > > drivers/media/usb/cx231xx/cx231xx-video.c | 10 +++++++-- > > > > > > > drivers/media/usb/dvb-usb/dib0700_core.c | 4 +++- > > > > > > > drivers/media/usb/go7007/go7007-fw.c | 4 ++-- > > > > > > > drivers/media/usb/gspca/cpia1.c | 6 ++--- > > > > > > > drivers/media/usb/hdpvr/hdpvr-control.c | 4 +++- > > > > > > > drivers/media/usb/s2255/s2255drv.c | 20 ++++++++--------- > > > > > > > drivers/media/usb/stk1160/stk1160-video.c | 10 ++------- > > > > > > > drivers/media/usb/uvc/uvc_ctrl.c | 26 ++++++++++++---------- > > > > > > > drivers/media/v4l2-core/v4l2-async.c | 8 +++---- > > > > > > > drivers/staging/media/sunxi/sun6i-isp/sun6i_isp.c | 1 - > > > > > > > drivers/staging/media/tegra-video/tegra20.c | 9 ++------ > > > > > > > 36 files changed, 132 insertions(+), 129 deletions(-) > > > > > > > --- > > > > > > > base-commit: 71b3ed53b08d87212fbbe51bdc3bf44eb8c462f8 > > > > > > > change-id: 20240415-fix-cocci-2df3ef22a6f7 > > > > > > > > > > > > > > Best regards, > > -- > Regards, > > Laurent Pinchart > --8323329-408150081-1713254351=:3643--