linux-kernel - [PATCH] misc: xilinx_sdfec: add compat_ptr

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Message-Id: <20201026155801.16053-1-harshalchau04@gmail.com>
Date:   Mon, 26 Oct 2020 21:28:01 +0530
From:   Harshal Chaudhari <harshalchau04@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     derek.kiernan@...inx.com, dragan.cvetic@...inx.com, arnd@...db.de,
        michal.simek@...inx.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] misc: xilinx_sdfec: add compat_ptr_ioctl()

Driver has a trivial helper function to convert
the pointer argument and then call the native ioctl handler.
But now we have a generic implementation for that, so we can use it.

Signed-off-by: Harshal Chaudhari <harshalchau04@...il.com>
---
 drivers/misc/xilinx_sdfec.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/misc/xilinx_sdfec.c b/drivers/misc/xilinx_sdfec.c
index 92291292756a..6f252793dceb 100644
--- a/drivers/misc/xilinx_sdfec.c
+++ b/drivers/misc/xilinx_sdfec.c
@@ -1016,14 +1016,6 @@ static long xsdfec_dev_ioctl(struct file *fptr, unsigned int cmd,
 	return rval;
 }
 
-#ifdef CONFIG_COMPAT
-static long xsdfec_dev_compat_ioctl(struct file *file, unsigned int cmd,
-				    unsigned long data)
-{
-	return xsdfec_dev_ioctl(file, cmd, (unsigned long)compat_ptr(data));
-}
-#endif
-
 static __poll_t xsdfec_poll(struct file *file, poll_table *wait)
 {
 	__poll_t mask = 0;
@@ -1054,9 +1046,7 @@ static const struct file_operations xsdfec_fops = {
 	.release = xsdfec_dev_release,
 	.unlocked_ioctl = xsdfec_dev_ioctl,
 	.poll = xsdfec_poll,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = xsdfec_dev_compat_ioctl,
-#endif
+	.compat_ioctl = compat_ptr_ioctl,
 };
 
 static int xsdfec_parse_of(struct xsdfec_dev *xsdfec)
-- 
2.17.1