From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1153886-1521805823-2-9959009074123986908 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521805823; b=dcJy5mSvs34UK3vbp2HzZgCdQSDCXNz7gwaO0u9z8CxDRJr Xvo48aXuutF007QjgjpP4WBQ+OXFU6h+brW7Buolj7R7rqel02n3VzNgQDH3EmrY vEh0bBkNZOWyKoWv7tcaFuVLmZw6TH6AHxD4rAFtnLGVmNPzoI4TTF+4dW6AwYmU 4tLPvRV61CZjB3yIb1GBL+b+AB/TZvT4n3vLlU7YnFqAuYMqJ0k4KXmBm5/rHQBd CcL/EA3PG9CBhDky5lQoGTuEQjRKof6FfUT158z/w22QILLeYat/8G+y+uRFjLri lgB6WyfGR2Pw3UiQX8pxt67cpdg+Ckc9vHFrd9Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1521805823; bh=xz98O7Ophqz01Zr32q/UWUdVKE gQkVwM3Ecdjm0ahUg=; b=LSLxhlgRLLw0pVixbs1rFryMP6YuQ2emtCwoaKgECR Wuq7vHQmTI19phMk/T4ciaWHbeYL6zjOKNRTPdZw2SQZAtAuCXWN5uDxh3T/UFsd 83dHoCeCf+gVE5yU29Q0d18Zpp1XZSBlvxbEW6EbRbW+Kp+hOlt2AsHRA92VP08f zBw/eVLu+74fL9zLV4heKMwGwCzGgSNwdE2aV5iAHI8NxvzpfoV7D1a6R61r7Gii 2PU5yolnI8YCwK+w/s7Z+uMQkPPQW7KguQzSv0OyNZYrJlf5cetSYC+5dDsS5Ufe S+bhJ6KjA0rsuiZ1AvK4Ikp+TWdMedXaUIOaaDaH4j9Q== ARC-Authentication-Results: i=1; mx2.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx2.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754167AbeCWKC1 (ORCPT ); Fri, 23 Mar 2018 06:02:27 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:38302 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752717AbeCWKCY (ORCPT ); Fri, 23 Mar 2018 06:02:24 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Artemy Kovalyov , Leon Romanovsky , Jason Gunthorpe , Sasha Levin Subject: [PATCH 4.14 37/77] IB/umem: Fix use of npages/nmap fields Date: Fri, 23 Mar 2018 10:54:11 +0100 Message-Id: <20180323094144.730645373@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180323094142.260022880@linuxfoundation.org> References: <20180323094142.260022880@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Artemy Kovalyov [ Upstream commit edf1a84fe37c51290e2c88154ecaf48dadff3d27 ] In ib_umem structure npages holds original number of sg entries, while nmap is number of DMA blocks returned by dma_map_sg. Fixes: c5d76f130b28 ('IB/core: Add umem function to read data from user-space') Signed-off-by: Artemy Kovalyov Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/core/umem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -352,7 +352,7 @@ int ib_umem_copy_from(void *dst, struct return -EINVAL; } - ret = sg_pcopy_to_buffer(umem->sg_head.sgl, umem->nmap, dst, length, + ret = sg_pcopy_to_buffer(umem->sg_head.sgl, umem->npages, dst, length, offset + ib_umem_offset(umem)); if (ret < 0)