On Wed, Sep 09, 2020 at 03:30:57PM -0500, Eddie James wrote:

Mask the IRQ status to only the bits that the driver checks. This
prevents excessive driver warnings when operating in slave mode
when additional bits are set that the driver doesn't handle.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Tao Ren <redacted>

I reconsidered and applied it now because this helps whenever slave mode
is used. So, applied to for-current, thanks!