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From:   Logan Gunthorpe <logang@deltatee.com>
To:     linux-kernel@vger.kernel.org, linux-ntb@googlegroups.com,
        Jon Mason <jdmason@kudzu.us>
Cc:     Allen Hubbe <allenbh@gmail.com>, Dave Jiang <dave.jiang@intel.com>,
        Serge Semin <fancer.lancer@gmail.com>,
        Logan Gunthorpe <logang@deltatee.com>
Date:   Wed,  9 Jan 2019 12:22:30 -0700
Message-Id: <20190109192233.5752-6-logang@deltatee.com>
In-Reply-To: <20190109192233.5752-1-logang@deltatee.com>
References: <20190109192233.5752-1-logang@deltatee.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Subject: [PATCH v3 5/8] NTB: perf: Don't require one more memory window than number of peers
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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 <logang@deltatee.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
---
 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 9174085ddc13..bd0474e62a40 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -655,7 +655,7 @@ 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;
 	}
-- 
2.19.0