[PATCH] scsi: sun3_scsi: Mark expected switch fall-throughs

[PATCH] scsi: sun3_scsi: Mark expected switch fall-throughs

[Gustavo A. R. Silva]

Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/scsi/sun3_scsi.c: warning: this statement may fall through
[-Wimplicit-fallthrough=]:  => 399:9, 403:9

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/scsi/sun3_scsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c
index 3d80ab67a626..955e4c938d49 100644
--- a/drivers/scsi/sun3_scsi.c
+++ b/drivers/scsi/sun3_scsi.c
@@ -397,10 +397,12 @@ static int sun3scsi_dma_finish(int write_flag)
 		case CSR_LEFT_3:
 			*vaddr = (dregs->bpack_lo & 0xff00) >> 8;
 			vaddr--;
+			/* Fall through */
 
 		case CSR_LEFT_2:
 			*vaddr = (dregs->bpack_hi & 0x00ff);
 			vaddr--;
+			/* Fall through */
 
 		case CSR_LEFT_1:
 			*vaddr = (dregs->bpack_hi & 0xff00) >> 8;
-- 
2.22.0

Re: [PATCH] scsi: sun3_scsi: Mark expected switch fall-throughs

[Geert Uytterhoeven]

Hi Gustavo,

On Mon, Jul 29, 2019 at 4:32 PM Gustavo A. R. Silva
<gustavo@embeddedor.com> wrote:
> Mark switch cases where we are expecting to fall through.
>
> This patch fixes the following warnings:
>
> drivers/scsi/sun3_scsi.c: warning: this statement may fall through
> [-Wimplicit-fallthrough=]:  => 399:9, 403:9
>
> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Thanks!
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>

> --- a/drivers/scsi/sun3_scsi.c
> +++ b/drivers/scsi/sun3_scsi.c
> @@ -397,10 +397,12 @@ static int sun3scsi_dma_finish(int write_flag)
>                 case CSR_LEFT_3:
>                         *vaddr = (dregs->bpack_lo & 0xff00) >> 8;
>                         vaddr--;
> +                       /* Fall through */
>
>                 case CSR_LEFT_2:
>                         *vaddr = (dregs->bpack_hi & 0x00ff);
>                         vaddr--;
> +                       /* Fall through */
>

I think it would be clearer if you would drop the blank lines.

>                 case CSR_LEFT_1:
>                         *vaddr = (dregs->bpack_hi & 0xff00) >> 8;

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH] scsi: sun3_scsi: Mark expected switch fall-throughs

[Martin K. Petersen]

Gustavo,

> Mark switch cases where we are expecting to fall through.
>
> This patch fixes the following warnings:
>
> drivers/scsi/sun3_scsi.c: warning: this statement may fall through
> [-Wimplicit-fallthrough=]:  => 399:9, 403:9

Applied to 5.4/scsi-queue, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering