Re: [PATCH] gpmc, EXPORT_SYMBOLS, west bridge related

From: Greg KH
Date: Tue Sep 07 2010 - 20:25:57 EST


On Tue, Sep 07, 2010 at 12:26:47PM -0700, David Cross wrote:
> This patch exports some of the gpmc driver functions in OMAP3. The purpose behind this patch
> is to allow device drivers compiled as loadable modules to be interfaced to the GPMC. I am
> hoping that Tony is the correct maintainer and willing to ACK this change. Please let me know
> if there are any issues or concerns with this patch.
> Thanks,
> David
>
> Signed-off-by: David Cross <david.cross@xxxxxxxxxxx>
>
> diff -uprN -X linux-next-vanilla/Documentation/dontdiff linux-next-vanilla/arch/arm/mach-omap2/gpmc.c linux-next-incl-sdk/arch/arm/mach-omap2/gpmc.c
> --- linux-next-vanilla/arch/arm/mach-omap2/gpmc.c 2010-08-31 19:32:51.000000000 -0700
> +++ linux-next-incl-sdk/arch/arm/mach-omap2/gpmc.c 2010-09-01 16:10:21.000000000 -0700
> @@ -133,6 +133,7 @@ void gpmc_cs_write_reg(int cs, int idx,
> reg_addr = gpmc_base + GPMC_CS0_OFFSET + (cs * GPMC_CS_SIZE) + idx;
> __raw_writel(val, reg_addr);
> }
> +EXPORT_SYMBOL(gpmc_cs_write_reg);

EXPORT_SYMBOL_GPL() perhaps?

What about platforms that don't have this symbol, how will the driver
build properly then? Shouldn't something like this be in a arch-neutral
place in the kernel tree?

thanks,

greg k-h
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