add REDIRECT

hc

2024-10-09 05e59e5fb0064c97a1c10921ecd549f2d4a58565

 kernel/arch/um/drivers/line.c
..
..
@@ -1,6 +1,6 @@
1
+// SPDX-License-Identifier: GPL-2.0
1
2
 /*
2
3
  * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3
- * Licensed under the GPL
4
4
  */
5
5
 
6
6
 #include <linux/irqreturn.h>
..
..
@@ -184,11 +184,6 @@
184
184
 	line_flush_buffer(tty);
185
185
 }
186
186
 
187
-int line_put_char(struct tty_struct *tty, unsigned char ch)
188
-{
189
-	return line_write(tty, &ch, sizeof(ch));
190
-}
191
-
192
187
 int line_write(struct tty_struct *tty, const unsigned char *buf, int len)
193
188
 {
194
189
 	struct line *line = tty->driver_data;
..
..
@@ -235,14 +230,6 @@
235
230
 
236
231
 	line->throttled = 0;
237
232
 	chan_interrupt(line, line->driver->read_irq);
238
-
239
-	/*
240
-	 * Maybe there is enough stuff pending that calling the interrupt
241
-	 * throttles us again.  In this case, line->throttled will be 1
242
-	 * again and we shouldn't turn the interrupt back on.
243
-	 */
244
-	if (!line->throttled)
245
-		reactivate_chan(line->chan_in, line->driver->read_irq);
246
233
 }
247
234
 
248
235
 static irqreturn_t line_write_interrupt(int irq, void *data)
..
..
@@ -667,8 +654,6 @@
667
654
 		tty_kref_put(tty);
668
655
 	}
669
656
  out:
670
-	if (winch->fd != -1)
671
-		reactivate_fd(winch->fd, WINCH_IRQ);
672
657
 	return IRQ_HANDLED;
673
658
 }
674
659