[PATCH v2] powerpc/fadump: when fadump is supported register the fadump sysfs files.

[Hari Bathini]

On 28/08/19 10:57 PM, Michal Suchanek wrote:
> Currently it is not possible to distinguish the case when fadump is
> supported by firmware and disabled in kernel and completely unsupported
> using the kernel sysfs interface. User can investigate the devicetree
> but it is more reasonable to provide sysfs files in case we get some
> fadumpv2 in the future.
> 
> With this patch sysfs files are available whenever fadump is supported
> by firmware.
> 
> Signed-off-by: Michal Suchanek <msuchanek at suse.de>
> ---

[...]

> -	if (!fw_dump.fadump_supported) {
> +	if (!fw_dump.fadump_supported && fw_dump.fadump_enabled) {
>  		printk(KERN_ERR "Firmware-assisted dump is not supported on"
>  			" this hardware\n");
> -		return 0;
>  	}

The above hunk is redundant with similar message already logged during
early boot in fadump_reserve_mem() function. I am not strongly against
this though. So...


Acked-by: Hari Bathini <hbathini at linux.ibm.com>