Re: [PATCH]: PNP: Increase the value of PNP constant

[Rene Herman <rene.herman@keyaccess.nl>]

On 16-11-07 08:39, Zhao Yakui wrote:

> Subject: PNP: Increase the value of PNP constant
> From: Zhao Yakui  <yakui.zhao@intel.com>
> 
> On some systems the number of resources(IO,MEM) returnedy by PNP
> device is greater than the PNP constant, for example motherboard devices. 
> It brings that some resources can't be reserved and resource confilicts.
> This will cause PCI resources are assigned wrongly in some systems, and
> cause hang. This is a regression since we deleted ACPI motherboard
> driver and use PNP system driver.
> 
> Andrew, I thought this is an urgent issue and should be fixed ASAP, and
> this is a good candidate for -stable tree
> 
> Signed-off-by: Li Shaohua <shaohua.li@intel.com>
> Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
> 
> ---
>  drivers/pnp/pnpacpi/rsparser.c |   18 ++++++++++++++++--
>  include/linux/pnp.h            |    4 ++--
>  2 files changed, 18 insertions(+), 4 deletions(-)
> 
> Index: linux-2.6.24-rc2/include/linux/pnp.h
> ===================================================================
> --- linux-2.6.24-rc2.orig/include/linux/pnp.h
> +++ linux-2.6.24-rc2/include/linux/pnp.h
> @@ -13,8 +13,8 @@
>  #include <linux/errno.h>
>  #include <linux/mod_devicetable.h>
>  
> -#define PNP_MAX_PORT		8
> -#define PNP_MAX_MEM		4
> +#define PNP_MAX_PORT		24
> +#define PNP_MAX_MEM		12

This fairly significantly grows (for example?) a struct pnp_resource_table. 
Are 24 and 12 really sensible?

Rene.