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diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 3ad4602..f3cda7e 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2296,7 +2296,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
* lock themselves)
*/
-static ssize_t n_tty_write(struct tty_struct *tty, struct file *file,
+static ssize_t noinline kpatch_n_tty_write(struct tty_struct *tty, struct file *file,
const unsigned char *buf, size_t nr)
{
const unsigned char *b = buf;
@@ -2383,6 +2383,12 @@ static ssize_t n_tty_write(struct tty_struct *tty, struct file *file,
return (b - buf) ? b - buf : retval;
}
+static ssize_t __attribute__((optimize("-fno-optimize-sibling-calls"))) n_tty_write(struct tty_struct *tty, struct file *file,
+ const unsigned char *buf, size_t nr)
+{
+ return kpatch_n_tty_write(tty, file, buf, nr);
+}
+
/**
* n_tty_poll - poll method for N_TTY
* @tty: terminal device
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