From 8ca2bdc7a98b9584ac5f640761501405154171c7 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 9 Nov 2005 12:07:18 -0800
Subject: [PATCH] [SPARC] sbus rtc: implement ->compat_ioctl
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
arch/sparc64/kernel/ioctl32.c | 2 --
drivers/sbus/char/rtc.c | 22 ++++++++++++++++++++++
2 files changed, 22 insertions(+), 2 deletions(-)
diff --git a/arch/sparc64/kernel/ioctl32.c b/arch/sparc64/kernel/ioctl32.c
index c2e96daa5ab30..e62214354bb52 100644
--- a/arch/sparc64/kernel/ioctl32.c
+++ b/arch/sparc64/kernel/ioctl32.c
@@ -114,8 +114,6 @@ COMPATIBLE_IOCTL(FBIOGCURPOS)
COMPATIBLE_IOCTL(FBIOGCURMAX)
/* Little k */
/* Little v, the video4linux ioctls */
-COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
-COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
/* And these ioctls need translation */
/* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */
HANDLE_IOCTL(FBIOPUTCMAP32, fbiogetputcmap)
diff --git a/drivers/sbus/char/rtc.c b/drivers/sbus/char/rtc.c
index 9b988baf0b519..5774bdd0e26fa 100644
--- a/drivers/sbus/char/rtc.c
+++ b/drivers/sbus/char/rtc.c
@@ -210,6 +210,27 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
}
}
+static long rtc_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ int rval = -ENOIOCTLCMD;
+
+ switch (cmd) {
+ /*
+ * These two are specific to this driver, the generic rtc ioctls
+ * are hanlded elsewhere.
+ */
+ case RTCGET:
+ case RTCSET:
+ lock_kernel();
+ rval = rtc_ioctl(file->f_dentry->d_inode, file, cmd, arg);
+ unlock_kernel();
+ break;
+ }
+
+ return rval;
+}
+
static int rtc_open(struct inode *inode, struct file *file)
{
int ret;
@@ -237,6 +258,7 @@ static struct file_operations rtc_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = rtc_ioctl,
+ .compat_ioctl = rtc_compat_ioctl,
.open = rtc_open,
.release = rtc_release,
};
--
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