Re: [PATCH] Add Amstrad Delta NAND support.

From: Jonathan McDowell
Date: Fri May 19 2006 - 05:03:36 EST

On Thu, May 18, 2006 at 06:57:28PM +0200, Jörn Engel wrote:
> On Thu, 18 May 2006 17:09:41 +0100, Jonathan McDowell wrote:
> > + omap_writew(0, (OMAP_MPUIO_BASE + OMAP_MPUIO_IO_CNTL));
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Could that be done in a macro?

Is there any benefit to doing so?

> > + udelay(0.04);
> Floating point in the kernel?

Not quite. udelay is a macro on ARM so this ends up as an integer before
it ever hits a function call. In an ideal world I'd use "ndelay(40);"
but that would result in a delay of over 1µs as ARM doesn't have ndelay
defined so we hit the generic fallback.

> > + ams_delta_mtd = kmalloc (sizeof(struct mtd_info) +
> ^
> > + sizeof (struct nand_chip), GFP_KERNEL);
> Remove space
> And please create a structure containing both struct mtd_info and
> struct nand_chip. Then use sizeof(that structure)...

This format is used throughout the drivers/mtd/nand/ directory. I'd
suggest it'd be more appropriate to have a separate patch that did this
for all of them if it's desired, rather than having each driver do its
own thing.

Agreed on all the spacing comments you raised; hangovers from toto.c
that I used as a base.


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