修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/arch/um/drivers/chan_kern.c
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@@ -1,6 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com)
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- * Licensed under the GPL
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  */
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 #include <linux/slab.h>
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@@ -247,12 +247,6 @@
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 		deactivate_fd(chan->fd, irq);
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 }
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-void reactivate_chan(struct chan *chan, int irq)
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-{
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-	if (chan && chan->enabled)
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-		reactivate_fd(chan->fd, irq);
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-}
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-
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 int write_chan(struct chan *chan, const char *buf, int len,
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 	       int write_irq)
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 {
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@@ -264,8 +258,6 @@
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 	n = chan->ops->write(chan->fd, buf, len, chan->data);
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 	if (chan->primary) {
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 		ret = n;
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-		if ((ret == -EAGAIN) || ((ret >= 0) && (ret < len)))
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-			reactivate_fd(chan->fd, write_irq);
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 	}
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 	return ret;
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 }
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@@ -563,8 +555,6 @@
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 			tty_insert_flip_char(port, c, TTY_NORMAL);
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 	} while (err > 0);
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-	if (err == 0)
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-		reactivate_fd(chan->fd, irq);
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 	if (err == -EIO) {
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 		if (chan->primary) {
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 			tty_port_tty_hangup(&line->port, false);