linux-kernel - Re: [trivial PATCH] treewide: Convert switch/case fallthrough; to break;

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Message-ID: <20200910065312.GH1031@ninjato>
Date:   Thu, 10 Sep 2020 08:53:12 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Joe Perches <joe@...ches.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Jiri Kosina <trivial@...nel.org>,
        Kees Cook <kees.cook@...onical.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        linux-mips@...r.kernel.org, linux-s390@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-ide@...r.kernel.org,
        linux-atm-general@...ts.sourceforge.net, netdev@...r.kernel.org,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        nouveau@...ts.freedesktop.org, linux-input@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-rdma@...r.kernel.org,
        iommu@...ts.linux-foundation.org, dm-devel@...hat.com,
        linux-media@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-mtd@...ts.infradead.org, intel-wired-lan@...ts.osuosl.org,
        oss-drivers@...ronome.com, linux-usb@...r.kernel.org,
        linux-wireless@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-nvme@...ts.infradead.org, linux-pm@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-scsi@...r.kernel.org,
        storagedev@...rochip.com, sparclinux@...r.kernel.org,
        linux-serial@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-parisc@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linux-afs@...ts.infradead.org, ceph-devel@...r.kernel.org,
        linux-nfs@...r.kernel.org, bpf@...r.kernel.org,
        dccp@...r.kernel.org, netfilter-devel@...r.kernel.org,
        coreteam@...filter.org, linux-sctp@...r.kernel.org,
        alsa-devel <alsa-devel@...a-project.org>
Subject: Re: [trivial PATCH] treewide: Convert switch/case fallthrough; to
 break;


> diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
> index e32ef3f01fe8..b13b1cbcac29 100644
> --- a/drivers/i2c/busses/i2c-i801.c
> +++ b/drivers/i2c/busses/i2c-i801.c
> @@ -1785,7 +1785,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
>  		fallthrough;
>  	case PCI_DEVICE_ID_INTEL_82801CA_3:
>  		priv->features |= FEATURE_HOST_NOTIFY;
> -		fallthrough;
> +		break;
>  	case PCI_DEVICE_ID_INTEL_82801BA_2:
>  	case PCI_DEVICE_ID_INTEL_82801AB_3:
>  	case PCI_DEVICE_ID_INTEL_82801AA_3:

I am not the maintainer (Jean is) but I suggest to drop this hunk. The
code is more complex with multiple 'fallthrough', so this change alone
actually makes the code inconsistent. A rework would need a seperate
patch.


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