Re: [PATCH] ARM: ks8695: fix __initdata annotation

From: Arnd Bergmann
Date: Tue Feb 09 2016 - 06:14:57 EST


On Tuesday 09 February 2016 10:00:30 Uwe Kleine-König wrote:
> > diff --git a/arch/arm/mach-ks8695/board-og.c b/arch/arm/mach-ks8695/board-og.c
> > index 1f4f2f4f25bb..fa1a7c2ca2bb 100644
> > --- a/arch/arm/mach-ks8695/board-og.c
> > +++ b/arch/arm/mach-ks8695/board-og.c
> > @@ -80,7 +80,7 @@ static void __init og_pci_bus_reset(void)
> > #define S8250_VIRT 0xf4000000
> > #define S8250_SIZE 0x00100000
> >
> > -static struct __initdata map_desc og_io_desc[] = {
> > +static struct map_desc __initdata og_io_desc[] = {
>
> I would have expected that
>
> +static struct map_desc og_io_desc[] __initdata = {
>
> is the correct variant?
>

I think those two mean the exact same thing, and we have tons of examples
for either one in the kernel, unlike the one I removed. I have
verified that the resulting object files are identical.

Can you point me to some documentation that clarifies which one to use,
and why?

Arnd