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From: Moritz Fischer <mdf@kernel.org>
To: linux-fpga@vger.kernel.org, gregkh@linuxfoundation.org
Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	Wu Hao <hao.wu@intel.com>, Xu Yilun <yilun.xu@intel.com>,
	Moritz Fischer <mdf@kernel.org>, Alan Tull <atull@kernel.org>
Subject: [PATCH 02/15] fpga: dfl: fme: remove copy_to_user() in ioctl for PR
Date: Thu, 27 Jun 2019 17:49:38 -0700	[thread overview]
Message-ID: <20190628004951.6202-3-mdf@kernel.org> (raw)
In-Reply-To: <20190628004951.6202-1-mdf@kernel.org>

From: Wu Hao <hao.wu@intel.com>

This patch removes copy_to_user() code in partial reconfiguration
ioctl, as it's useless as user never needs to read the data
structure after ioctl.

Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
---
 drivers/fpga/dfl-fme-pr.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c
index d9ca9554844a..6ec0f09e5994 100644
--- a/drivers/fpga/dfl-fme-pr.c
+++ b/drivers/fpga/dfl-fme-pr.c
@@ -159,9 +159,6 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg)
 	mutex_unlock(&pdata->lock);
 free_exit:
 	vfree(buf);
-	if (copy_to_user((void __user *)arg, &port_pr, minsz))
-		return -EFAULT;
-
 	return ret;
 }
 
-- 
2.22.0


  parent reply	other threads:[~2019-06-28  0:50 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-28  0:49 [PATCH 00/15] FPGA DFL updates Moritz Fischer
2019-06-28  0:49 ` [PATCH 01/15] fpga: dfl-fme-mgr: fix FME_PR_INTFC_ID register address Moritz Fischer
2019-06-28  0:49 ` Moritz Fischer [this message]
2019-06-28  0:49 ` [PATCH 03/15] fpga: dfl: fme: align PR buffer size per PR datawidth Moritz Fischer
2019-06-28  0:49 ` [PATCH 04/15] fpga: dfl: fme: support 512bit data width PR Moritz Fischer
2019-07-03 17:56   ` Greg KH
2019-07-03 23:44     ` Wu Hao
2019-06-28  0:49 ` [PATCH 05/15] Documentation: fpga: dfl: add descriptions for virtualization and new interfaces Moritz Fischer
2019-07-03 17:59   ` Greg KH
2019-07-03 23:38     ` Wu Hao
2019-07-04  5:37       ` Greg KH
2019-07-04  6:42         ` Wu Hao
2019-07-04  8:17           ` Greg KH
2019-07-04  8:19             ` Wu Hao
2019-06-28  0:49 ` [PATCH 06/15] fpga: dfl: fme: add DFL_FPGA_FME_PORT_RELEASE/ASSIGN ioctl support Moritz Fischer
2019-07-03 18:07   ` Greg KH
2019-07-03 23:30     ` Wu Hao
2019-07-04  5:39       ` Greg KH
2019-07-04  6:31         ` Wu Hao
2019-07-04  8:20           ` Greg KH
2019-07-04  8:58             ` Wu Hao
2019-07-04 11:04               ` Greg KH
2019-07-04 11:29                 ` Wu Hao
2019-06-28  0:49 ` [PATCH 07/15] fpga: dfl: pci: enable SRIOV support Moritz Fischer
2019-06-28  0:49 ` [PATCH 08/15] fpga: dfl: afu: add AFU state related sysfs interfaces Moritz Fischer
2019-06-28  0:49 ` [PATCH 09/15] fpga: dfl: afu: add userclock " Moritz Fischer
2019-06-28  0:49 ` [PATCH 10/15] fpga: dfl: add id_table for dfl private feature driver Moritz Fischer
2019-06-28  0:49 ` [PATCH 11/15] fpga: dfl: afu: export __port_enable/disable function Moritz Fischer
2019-06-28  0:49 ` [PATCH 12/15] fpga: dfl: afu: add error reporting support Moritz Fischer
2019-06-28  0:49 ` [PATCH 13/15] fpga: dfl: afu: add STP (SignalTap) support Moritz Fischer
2019-06-28  0:49 ` [PATCH 14/15] fpga: dfl: fme: add capability sysfs interfaces Moritz Fischer
2019-06-28  0:49 ` [PATCH 15/15] fpga: dfl: fme: add global error reporting support Moritz Fischer

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