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Date:   Mon, 29 Apr 2019 16:55:35 +0800
From:   Wu Hao <>
Cc:, Wu Hao <>,
        Xu Yilun <>
Subject: [PATCH v2 02/18] fpga: dfl: fme: remove copy_to_user() in ioctl for PR

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 <>
Signed-off-by: Wu Hao <>
v2: clean up code split from patch 2 in v1 patchset.
 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 d9ca955..6ec0f09 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)
-	if (copy_to_user((void __user *)arg, &port_pr, minsz))
-		return -EFAULT;
 	return ret;

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