Hi Silva,

    The actual intention of the code is NOT to fall through, though current 
code can work correctly.
    Thanks for this finding. If you don't mind, I'll submit a fix patch for it 
with the tag 'Reported-by:' by you.

Thanks!
- Qiuxu

> From: linux-edac-ow...@vger.kernel.org [mailto:linux-edac-
> ow...@vger.kernel.org] On Behalf Of Gustavo A. R. Silva
> Sent: Saturday, October 14, 2017 4:28 AM
> To: Mauro Carvalho Chehab <mche...@kernel.org>; Borislav Petkov
> <b...@alien8.de>
> Cc: linux-e...@vger.kernel.org; linux-kernel@vger.kernel.org; Gustavo A. R.
> Silva <garsi...@embeddedor.com>
> Subject: [PATCH] EDAC, sb_edac: mark expected switch fall-through
> 
> In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we
> are expecting to fall through.
> 
> Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
> ---
> This code was tested by compilation only (GCC 7.2.0 was used).
> Please, verify if the actual intention of the code is to fall through.
> 
>  drivers/edac/sb_edac.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index
> 72b98a0..b50d714 100644
> --- a/drivers/edac/sb_edac.c
> +++ b/drivers/edac/sb_edac.c
> @@ -2485,6 +2485,7 @@ static int ibridge_mci_bind_devs(struct mem_ctl_info
> *mci,
>               case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA:
>               case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA:
>                       pvt->pci_ta = pdev;
> +                     /* fall through */
>               case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS:
>               case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS:

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