Pull release into acpica branch

5 files changed, 49 insertions, 49 deletions

diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 75419cf9d353..1f060914cfa4 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -16,6 +16,7 @@
 #include <linux/types.h>
 #include <linux/kdev_t.h>
 #include <linux/tty.h>
+#include <linux/tty_flip.h>
 #include <linux/vt_kern.h>
 #include <linux/init.h>
 #include <linux/console.h>
@@ -432,8 +433,6 @@ raw3215_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 				if (count > slen)
 					count = slen;
 			} else
-			if (count >= TTY_FLIPBUF_SIZE - tty->flip.count)
-				count = TTY_FLIPBUF_SIZE - tty->flip.count - 1;
 			EBCASC(raw->inbuf, count);
 			cchar = ctrlchar_handle(raw->inbuf, count, tty);
 			switch (cchar & CTRLCHAR_MASK) {
@@ -441,28 +440,20 @@ raw3215_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 				break;
 
 			case CTRLCHAR_CTRL:
-				tty->flip.count++;
-				*tty->flip.flag_buf_ptr++ = TTY_NORMAL;
-				*tty->flip.char_buf_ptr++ = cchar;
+				tty_insert_flip_char(tty, cchar, TTY_NORMAL);
 				tty_flip_buffer_push(raw->tty);
 				break;
 
 			case CTRLCHAR_NONE:
-				memcpy(tty->flip.char_buf_ptr,
-				       raw->inbuf, count);
 				if (count < 2 ||
-				    (strncmp(raw->inbuf+count-2, "^n", 2) &&
-				    strncmp(raw->inbuf+count-2, "\252n", 2)) ) {
-					/* don't add the auto \n */
-					tty->flip.char_buf_ptr[count] = '\n';
-					memset(tty->flip.flag_buf_ptr,
-					       TTY_NORMAL, count + 1);
+				    (strncmp(raw->inbuf+count-2, "\252n", 2) &&
+				     strncmp(raw->inbuf+count-2, "^n", 2)) ) {
+					/* add the auto \n */
+					raw->inbuf[count] = '\n';
 					count++;
 				} else
-					count-=2;
-				tty->flip.char_buf_ptr += count;
-				tty->flip.flag_buf_ptr += count;
-				tty->flip.count += count;
+					count -= 2;
+				tty_insert_flip_string(tty, raw->inbuf, count);
 				tty_flip_buffer_push(raw->tty);
 				break;
 			}
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 735a7fcdeff5..5f6fa4c67843 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -319,9 +319,8 @@ fs3270_write(struct file *filp, const char *data, size_t count, loff_t *off)
 /*
  * process ioctl commands for the tube driver
  */
-static int
-fs3270_ioctl(struct inode *inode, struct file *filp,
-	     unsigned int cmd, unsigned long arg)
+static long
+fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	struct fs3270 *fp;
 	struct raw3270_iocb iocb;
@@ -331,6 +330,7 @@ fs3270_ioctl(struct inode *inode, struct file *filp,
 	if (!fp)
 		return -ENODEV;
 	rc = 0;
+	lock_kernel();
 	switch (cmd) {
 	case TUBICMD:
 		fp->read_command = arg;
@@ -356,6 +356,7 @@ fs3270_ioctl(struct inode *inode, struct file *filp,
 			rc = -EFAULT;
 		break;
 	}
+	unlock_kernel();
 	return rc;
 }
 
@@ -491,12 +492,13 @@ fs3270_close(struct inode *inode, struct file *filp)
 }
 
 static struct file_operations fs3270_fops = {
-	.owner	 = THIS_MODULE,		/* owner */
-	.read	 = fs3270_read,		/* read */
-	.write	 = fs3270_write,	/* write */
-	.ioctl	 = fs3270_ioctl,	/* ioctl */
-	.open	 = fs3270_open,		/* open */
-	.release = fs3270_close,	/* release */
+	.owner		 = THIS_MODULE,		/* owner */
+	.read		 = fs3270_read,		/* read */
+	.write		 = fs3270_write,	/* write */
+	.unlocked_ioctl	 = fs3270_ioctl,	/* ioctl */
+	.compat_ioctl	 = fs3270_ioctl,	/* ioctl */
+	.open	 	= fs3270_open,		/* open */
+	.release 	= fs3270_close,		/* release */
 };
 
 /*
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index a20d7c89341d..6cbf067f1a8f 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -13,6 +13,7 @@
 #include <linux/kmod.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
 #include <linux/sched.h>
 #include <linux/wait.h>
 #include <linux/slab.h>
@@ -496,25 +497,19 @@ sclp_tty_input(unsigned char* buf, unsigned int count)
 	case CTRLCHAR_SYSRQ:
 		break;
 	case CTRLCHAR_CTRL:
-		sclp_tty->flip.count++;
-		*sclp_tty->flip.flag_buf_ptr++ = TTY_NORMAL;
-		*sclp_tty->flip.char_buf_ptr++ = cchar;
+		tty_insert_flip_char(sclp_tty, cchar, TTY_NORMAL);
 		tty_flip_buffer_push(sclp_tty);
 		break;
 	case CTRLCHAR_NONE:
 		/* send (normal) input to line discipline */
-		memcpy(sclp_tty->flip.char_buf_ptr, buf, count);
 		if (count < 2 ||
-		    (strncmp ((const char *) buf + count - 2, "^n", 2) &&
-		     strncmp ((const char *) buf + count - 2, "\0252n", 2))) {
-			sclp_tty->flip.char_buf_ptr[count] = '\n';
-			count++;
+		    (strncmp((const char *) buf + count - 2, "^n", 2) &&
+		     strncmp((const char *) buf + count - 2, "\252n", 2))) {
+			/* add the auto \n */
+			tty_insert_flip_string(sclp_tty, buf, count);
+			tty_insert_flip_char(sclp_tty, '\n', TTY_NORMAL);
 		} else
-			count -= 2;
-		memset(sclp_tty->flip.flag_buf_ptr, TTY_NORMAL, count);
-		sclp_tty->flip.char_buf_ptr += count;
-		sclp_tty->flip.flag_buf_ptr += count;
-		sclp_tty->flip.count += count;
+			tty_insert_flip_string(sclp_tty, buf, count - 2);
 		tty_flip_buffer_push(sclp_tty);
 		break;
 	}
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 06bd85824d7b..9e02625c82cf 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -16,6 +16,7 @@
 #include <linux/kernel.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
 #include <linux/sched.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
@@ -482,16 +483,7 @@ sclp_vt220_receiver_fn(struct evbuf_header *evbuf)
 		/* Send input to line discipline */
 		buffer++;
 		count--;
-		/* Prevent buffer overrun by discarding input. Note that
-		 * because buffer_push works asynchronously, we cannot wait
-		 * for the buffer to be emptied. */
-		if (count + sclp_vt220_tty->flip.count > TTY_FLIPBUF_SIZE)
-			count = TTY_FLIPBUF_SIZE - sclp_vt220_tty->flip.count;
-		memcpy(sclp_vt220_tty->flip.char_buf_ptr, buffer, count);
-		memset(sclp_vt220_tty->flip.flag_buf_ptr, TTY_NORMAL, count);
-		sclp_vt220_tty->flip.char_buf_ptr += count;
-		sclp_vt220_tty->flip.flag_buf_ptr += count;
-		sclp_vt220_tty->flip.count += count;
+		tty_insert_flip_string(sclp_vt220_tty, buffer, count);
 		tty_flip_buffer_push(sclp_vt220_tty);
 		break;
 	}
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 86262a13f7c6..5ce7ca38ace0 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -37,6 +37,8 @@ static int tapechar_open(struct inode *,struct file *);
 static int tapechar_release(struct inode *,struct file *);
 static int tapechar_ioctl(struct inode *, struct file *, unsigned int,
 			  unsigned long);
+static long tapechar_compat_ioctl(struct file *, unsigned int,
+			  unsigned long);
 
 static struct file_operations tape_fops =
 {
@@ -44,6 +46,7 @@ static struct file_operations tape_fops =
 	.read = tapechar_read,
 	.write = tapechar_write,
 	.ioctl = tapechar_ioctl,
+	.compat_ioctl = tapechar_compat_ioctl,
 	.open = tapechar_open,
 	.release = tapechar_release,
 };
@@ -463,6 +466,23 @@ tapechar_ioctl(struct inode *inp, struct file *filp,
 	return device->discipline->ioctl_fn(device, no, data);
 }
 
+static long
+tapechar_compat_ioctl(struct file *filp, unsigned int no, unsigned long data)
+{
+	struct tape_device *device = filp->private_data;
+	int rval = -ENOIOCTLCMD;
+
+	if (device->discipline->ioctl_fn) {
+		lock_kernel();
+		rval = device->discipline->ioctl_fn(device, no, data);
+		unlock_kernel();
+		if (rval == -EINVAL)
+			rval = -ENOIOCTLCMD;
+	}
+
+	return rval;
+}
+
 /*
  * Initialize character device frontend.
  */