On 2019-07-08 9:57 a.m., Alexander Fomichev wrote: > ntb_mw_set_trans should work as ntb_mw_clear_trans when size == 0 and/or > addr == 0. But error in xlate_pos checking condition prevents this. > Fix the condition to make ntb_mw_clear_trans working. Nice catch, but you'll need to resubmit the patch with a Signed-off-by line. Please see [1]. When you do, you can also add: Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> Thanks, Logan [1] https://www.kernel.org/doc/html/latest/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin > --- > drivers/ntb/hw/mscc/ntb_hw_switchtec.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c > index 1e2f627d3bac..19d46af19650 100644 > --- a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c > +++ b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c > @@ -299,7 +299,7 @@ static int switchtec_ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int widx, > if (widx >= switchtec_ntb_mw_count(ntb, pidx)) > return -EINVAL; > > - if (xlate_pos < 12) > + if (size != 0 && xlate_pos < 12) > return -EINVAL; > > if (!IS_ALIGNED(addr, BIT_ULL(xlate_pos))) { >
