diff --git a/arch/powerpc/kernel/ioctl32.c b/arch/powerpc/kernel/ioctl32.c
index 3fa6a93adbd0..0fa3d27fef01 100644
--- a/arch/powerpc/kernel/ioctl32.c
+++ b/arch/powerpc/kernel/ioctl32.c
@@ -40,10 +40,6 @@ IOCTL_TABLE_START
 #define DECLARES
 #include "compat_ioctl.c"
 
-/* Little p (/dev/rtc, /dev/envctrl, etc.) */
-COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
-COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
-
 IOCTL_TABLE_END
 
 int ioctl_table_size = ARRAY_SIZE(ioctl_start);
diff --git a/drivers/sbus/char/rtc.c b/drivers/sbus/char/rtc.c
index 5774bdd0e26f..9b988baf0b51 100644
--- a/drivers/sbus/char/rtc.c
+++ b/drivers/sbus/char/rtc.c
@@ -210,27 +210,6 @@ 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;
@@ -258,7 +237,6 @@ 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,
 };
diff --git a/include/linux/compat_ioctl.h b/include/linux/compat_ioctl.h
index 2209ad3499a3..174f3379e5d9 100644
--- a/include/linux/compat_ioctl.h
+++ b/include/linux/compat_ioctl.h
@@ -259,6 +259,14 @@ COMPATIBLE_IOCTL(RTC_RD_TIME)
 COMPATIBLE_IOCTL(RTC_SET_TIME)
 COMPATIBLE_IOCTL(RTC_WKALM_SET)
 COMPATIBLE_IOCTL(RTC_WKALM_RD)
+/*
+ * These two are only for the sbus rtc driver, but
+ * hwclock tries them on every rtc device first when
+ * running on sparc.  On other architectures the entries
+ * are useless but harmless.
+ */
+COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
+COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
 /* Little m */
 COMPATIBLE_IOCTL(MTIOCTOP)
 /* Socket level stuff */