Re: [PATCH] Revert "usb: xhci: remove option to change a default ring's TRB cycle bit"

[Greg KH <gregkh@linuxfoundation.org>]

On Tue, Sep 30, 2025 at 04:51:35PM +0300, Mathias Nyman wrote:
> On 9/30/25 16:22, Niklas Neronin wrote:
> > Revert 9b28ef1e4cc0 [ Upstream commit e1b0fa863907 ], it causes regression
> > in 6.12.49 stable, no issues in upstream.
> > 
> > Commit 9b28ef1e4cc0 ("usb: xhci: remove option to change a default ring's
> > TRB cycle bit") introduced a regression in 6.12.49 stable kernel.
> > The original commit was never intended for stable kernels, but was added
> > as a dependency for commit a5c98e8b1398 ("xhci: dbc: Fix full DbC transfer
> > ring after several reconnects").
> > 
> > Since this commit is more of an optimization, revert it and solve the
> > dependecy by modifying one line in xhci_dbc_ring_init(). Specifically,
> > commit a5c98e8b1398 ("xhci: dbc: Fix full DbC transfer ring after several
> > reconnects") moved function call xhci_initialize_ring_info() into a
> > separate function. To resolve the dependency, the arguments for this
> > function call are also reverted.
> > 
> > Closes: https://lore.kernel.org/stable/01b8c8de46251cfaad1329a46b7e3738@stwm.de/
> > Tested-by: Wolfgang Walter <linux@stwm.de>
> > Cc: stable@vger.kernel.org # v6.12.49
> > Signed-off-by: Niklas Neronin <niklas.neronin@linux.intel.com>
> 
> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>

Thanks, now queued up.

greg k-h