[PATCH AUTOSEL 5.4 241/266] NTB: perf: Don't require one more memory window than number of peers

[Sasha Levin]

From: Logan Gunthorpe <log...@deltatee.com>

[ Upstream commit a9c4211ac918ade1522aced6b5acfbe824722f7d ]

ntb_perf should not require more than one memory window per peer. This
was probably an off-by-one error.

Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe <log...@deltatee.com>
Acked-by: Allen Hubbe <alle...@gmail.com>
Tested-by: Alexander Fomichev <fomichev...@gmail.com>
Signed-off-by: Jon Mason <jdma...@kudzu.us>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/ntb/test/ntb_perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 52c29791fc02..3817eadab2cf 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -653,7 +653,7 @@ static int perf_init_service(struct perf_ctx *perf)
 {
        u64 mask;
 
-       if (ntb_peer_mw_count(perf->ntb) < perf->pcnt + 1) {
+       if (ntb_peer_mw_count(perf->ntb) < perf->pcnt) {
                dev_err(&perf->ntb->dev, "Not enough memory windows\n");
                return -EINVAL;
        }
-- 
2.25.1