Re: [PATCH 03/32 v2] dmaengine: ste_dma40: Use the BIT macro toreplace ugly '(1 << x)'s

From: Lee Jones
Date: Wed Apr 24 2013 - 11:08:12 EST


On Wed, 24 Apr 2013, Linus Walleij wrote:

> On Thu, Apr 18, 2013 at 2:16 PM, Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>
> > The aim is to make the code that little more readable.
> >
> > Cc: Vinod Koul <vinod.koul@xxxxxxxxx>
> > Cc: Dan Williams <djbw@xxxxxx>
> > Cc: Per Forlin <per.forlin@xxxxxxxxxxxxxx>
> > Cc: Rabin Vincent <rabin@xxxxxx>
> > Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
> > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
> >
> > diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
> > index 3b83dee..ddf5ff1 100644
> > --- a/drivers/dma/ste_dma40.c
> > +++ b/drivers/dma/ste_dma40.c
> > @@ -49,9 +49,9 @@
> > #define MAX_LCLA_ALLOC_ATTEMPTS 256
> >
> > /* Bit markings for allocation map */
> > -#define D40_ALLOC_FREE (1 << 31)
> > -#define D40_ALLOC_PHY (1 << 30)
> > -#define D40_ALLOC_LOG_FREE 0
> > +#define D40_ALLOC_FREE BIT(31)
> > +#define D40_ALLOC_PHY BIT(30)
> > +#define D40_ALLOC_LOG_FREE BIT(0)
>
> No. 0 != BIT(0)
>
> Please fix this...

Good spot.

I've already fixed this though.

I'll send it as a v3 now.

--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org â Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/