Re: [PATCH] spi: make spi_bus_type const

[Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>]

On Fri, Jan 05, 2024 at 03:45:37PM +0000, Mark Brown wrote:
> On Fri, Jan 05, 2024 at 04:05:18PM +0100, Greg Kroah-Hartman wrote:
> > On Fri, Jan 05, 2024 at 02:55:01PM +0000, Mark Brown wrote:
> 
> > > Whatever makes the driver core able to handle this doesn't seem to be in
> > > mainline yet - what's the story there?
> 
> > Odd, what errors are you seeing when you build?  I have had to fix up a
> > few subsys_* calls for this type of thing, but I don't see spi_bus_type
> > being used in those that I saw in my local tree.  Did I miss something
> > else?
> 
> > Maybe just wait for after 6.8-rc1, it builds properly here locally :)
> 
> It's this on an x86 allmodconfig:
> 
> /build/stage/linux/sound/soc/rockchip/rk3399_gru_sound.c:471:29: error: initialization discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
>   471 |                 .bus_type = &spi_bus_type,
>       |                             ^
> cc1: all warnings being treated as errors
> 
> so not actually a core thing, I have to confess I didn't notice where
> the assignment was when I glanced at the errors.

Ah, missed that, as it was handled by this commit for the i2c tree:
	https://lore.kernel.org/all/2023121942-jumble-unethical-3163@gregkh/

So just hold off on this until after 6.8-rc1 is out, or I can wait until
then as well if you ack it and take it through my tree.

thanks,

greg k-h