| Date | Thu, 18 Apr 2013 12:00:09 +0100 | From | Lee Jones <> | Subject | Re: [PATCH 03/32] dmaengine: ste_dma40: Use the BIT macro to replace ugly '(1 << x)'s |
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On Thu, 18 Apr 2013, Russell King - ARM Linux wrote:
> On Thu, Apr 18, 2013 at 11:11:45AM +0100, Lee Jones wrote: > > The aim is to make the code that little more readable. > > Maybe we should also invent the MULT() macro too, because a * b is just > too ugly as well? Maybe ADD(), SUB() and DIV() macros as well... Think > of all those extra parens you could use! :)
Very amusing. :)
I just happen to like this macro.
It's more for tidiness than readability to be honest, but still.
> > @@ -1448,7 +1448,7 @@ static u32 d40_residue(struct d40_chan *d40c) > > >> D40_SREG_ELEM_PHY_ECNT_POS; > > } > > > > - return num_elt * (1 << d40c->dma_cfg.dst_info.data_width); > > + return num_elt * BIT(d40c->dma_cfg.dst_info.data_width); > > This should be: > return num_elt << d40c->dma_cfg.dst_info.data_width;
Thanks. I'll fixup.
-- Lee Jones Linaro ST-Ericsson Landing Team Lead Linaro.org │ 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@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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