Re: [PATCH stable/6.18-6.17] md: add check_new_feature module parameter

[Greg KH]

On Wed, Dec 17, 2025 at 09:05:13PM +0800, linan666@xxxxxxxxxxxxxxx wrote:
> From: Li Nan <linan122@xxxxxxxxxx>
> 
> commit 9c47127a807da3e36ce80f7c83a1134a291fc021 upstream.
> 
> Raid checks if pad3 is zero when loading superblock from disk. Arrays
> created with new features may fail to assemble on old kernels as pad3
> is used.
> 
> Add module parameter check_new_feature to bypass this check.

This is a new feature, why does it need to go to stable kernels?

And a module parameter?  Ugh, this isn't the 1990's anymore, this is not
good and will be a mess over time (think multiple devices...)

thanks,

greg k-h