RE: [PATCH] EDAC, sb_edac: mark expected switch fall-through

From: Zhuo, Qiuxu
Date: Sun Oct 15 2017 - 23:01:05 EST


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-owner@xxxxxxxxxxxxxxx [mailto:linux-edac-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Gustavo A. R. Silva
> Sent: Saturday, October 14, 2017 4:28 AM
> To: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>; Borislav Petkov
> <bp@xxxxxxxxx>
> Cc: linux-edac@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Gustavo A. R.
> Silva <garsilva@xxxxxxxxxxxxxx>
> 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 <garsilva@xxxxxxxxxxxxxx>
> ---
> 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: