Re: [PATCH] xen/blkfront: fix bug in backported patch

Greg KH
2021-12-23T10:58:02Z

On Thu, Dec 23, 2021 at 11:53:08AM +0100, Juergen Gross wrote:
> The backport of commit 8f5a695d99000fc ("xen/blkfront: don't take local
> copy of a request from the ring page") to stable 4.4 kernel introduced
> a bug when adding the needed blkif_ring_get_request() function, as
> info->ring.req_prod_pvt was incremented twice now.
>
> Fix that be deleting the now superfluous increments after calling that
> function.
>
> Signed-off-by: Juergen Gross <jgross@suse.com>
> ---
> drivers/block/xen-blkfront.c | 4 ----
> 1 file changed, 4 deletions(-)

So this is only needed in 4.4.y? No other backports were incorrect?

thanks,

greg k-h