From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A1FEC433E1 for ; Thu, 18 Jun 2020 02:21:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD263207E8 for ; Thu, 18 Jun 2020 02:21:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592446877; bh=CfjdaiD3CHfP1mp54VQFhoyb/LcS2K9xmJBfV/HAfmQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=GPZOz9y1p1bUyxFB1WCmZqObF5uCuUITpyL9yeHZwcexqx73hbgDKeH2V2nYBtjFY jXuReMCk8u+TfYxQ3V9sYn2C+EzrCx4Twuiz5kTZOeM3A1u10zGCcl6gfrZwr8uGZv uiqlpEW0xLSLB6eCM2cLJO4Htp4i7RIQtArmvDY0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729995AbgFRBSm (ORCPT ); Wed, 17 Jun 2020 21:18:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:45896 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729514AbgFRBPk (ORCPT ); Wed, 17 Jun 2020 21:15:40 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1C93C2088E; Thu, 18 Jun 2020 01:15:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592442940; bh=CfjdaiD3CHfP1mp54VQFhoyb/LcS2K9xmJBfV/HAfmQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rYVpqm/E0RxxVh85LGH2JCbhE/hg2PzZaBlEwgJomyJYUHpEOur8o25p4RavC9FKb JfGHwNVrX3Z74dyXIPqcQZPz8MaqsKPaeJ6W1CQGI0dyFX9X5cClbHqMaIGslPM8Ji 3oYQaXibT368UOcrE9m2bFUSYJp+z6zpjDxzPUyE= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Logan Gunthorpe , Allen Hubbe , Alexander Fomichev , Jon Mason , Sasha Levin , linux-ntb@googlegroups.com Subject: [PATCH AUTOSEL 5.7 351/388] NTB: perf: Don't require one more memory window than number of peers Date: Wed, 17 Jun 2020 21:07:28 -0400 Message-Id: <20200618010805.600873-351-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200618010805.600873-1-sashal@kernel.org> References: <20200618010805.600873-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Logan Gunthorpe [ 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 Acked-by: Allen Hubbe Tested-by: Alexander Fomichev Signed-off-by: Jon Mason Signed-off-by: Sasha Levin --- 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 1c93b9f5c73b..21c8a3bac1e0 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; } -- 2.25.1