From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48538 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755687AbeCVOCo (ORCPT ); Thu, 22 Mar 2018 10:02:44 -0400 Subject: Patch "IB/umem: Fix use of npages/nmap fields" has been added to the 4.4-stable tree To: artemyko@mellanox.com, alexander.levin@microsoft.com, gregkh@linuxfoundation.org, jgg@mellanox.com, leon@kernel.org Cc: , From: Date: Thu, 22 Mar 2018 15:01:33 +0100 Message-ID: <152172729316890@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled IB/umem: Fix use of npages/nmap fields to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ib-umem-fix-use-of-npages-nmap-fields.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Thu Mar 22 14:57:33 CET 2018 From: Artemy Kovalyov Date: Tue, 14 Nov 2017 14:51:59 +0200 Subject: IB/umem: Fix use of npages/nmap fields 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 @@ -354,7 +354,7 @@ 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) Patches currently in stable-queue which might be from artemyko@mellanox.com are queue-4.4/ib-umem-fix-use-of-npages-nmap-fields.patch