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.
Signed-off-by: Alexander Fomichev <fomichev.ru@xxxxxxxxx>
Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
---
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))) {
--
2.17.1
