From a9c4211ac918ade1522aced6b5acfbe824722f7d Mon Sep 17 00:00:00 2001
From: Logan Gunthorpe <logang@deltatee.com>
Date: Wed, 9 Jan 2019 12:22:30 -0700
Subject: [PATCH] NTB: perf: Don't require one more memory window than number of peers
Git-commit: a9c4211ac918ade1522aced6b5acfbe824722f7d
Patch-mainline: v5.8-rc1
References: git-fixes
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>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 42b8a8dea2b3..ec87a28ae239 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -654,7 +654,7 @@ 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;
}
--
2.16.4