mirror of https://github.com/OpenIPC/firmware.git
Add openpty patch, thx @widgetii
Dmitry Ermakov
parent
85f6fcb9cb
commit
da74bd4379
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@ -0,0 +1,144 @@
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--- a/drivers/tty/pty.c
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+++ b/drivers/tty/pty.c
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@@ -721,7 +721,18 @@ err_file:
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return retval;
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}
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-static struct file_operations ptmx_fops;
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+static const struct file_operations ptmx_fops =
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+{
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+ .llseek = no_llseek,
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+ .read = tty_read,
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+ .write = tty_write,
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+ .poll = tty_poll,
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+ .unlocked_ioctl = tty_ioctl,
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+ .compat_ioctl = tty_compat_ioctl,
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+ .open = ptmx_open,
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+ .release = tty_release,
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+ .fasync = tty_fasync,
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+};
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static void __init unix98_pty_init(void)
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{
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@@ -775,9 +786,6 @@ static void __init unix98_pty_init(void)
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register_sysctl_table(pty_root_table);
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/* Now create the /dev/ptmx special device */
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- tty_default_fops(&ptmx_fops);
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- ptmx_fops.open = ptmx_open;
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-
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cdev_init(&ptmx_cdev, &ptmx_fops);
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if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
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register_chrdev_region(MKDEV(TTYAUX_MAJOR, 2), 1, "/dev/ptmx") < 0)
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--- a/drivers/tty/tty_io.c
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+++ b/drivers/tty/tty_io.c
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@@ -137,21 +137,10 @@ EXPORT_SYMBOL(tty_mutex);
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/* Spinlock to protect the tty->tty_files list */
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DEFINE_SPINLOCK(tty_files_lock);
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-static ssize_t tty_read(struct file *, char __user *, size_t, loff_t *);
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-static ssize_t tty_write(struct file *, const char __user *, size_t, loff_t *);
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ssize_t redirected_tty_write(struct file *, const char __user *,
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size_t, loff_t *);
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-static unsigned int tty_poll(struct file *, poll_table *);
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static int tty_open(struct inode *, struct file *);
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-long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
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-#ifdef CONFIG_COMPAT
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-static long tty_compat_ioctl(struct file *file, unsigned int cmd,
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- unsigned long arg);
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-#else
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-#define tty_compat_ioctl NULL
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-#endif
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static int __tty_fasync(int fd, struct file *filp, int on);
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-static int tty_fasync(int fd, struct file *filp, int on);
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static void release_tty(struct tty_struct *tty, int idx);
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static void __proc_set_tty(struct task_struct *tsk, struct tty_struct *tty);
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static void proc_set_tty(struct task_struct *tsk, struct tty_struct *tty);
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@@ -962,7 +951,7 @@ static void tty_update_time(struct timespec *time)
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* read calls may be outstanding in parallel.
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*/
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-static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
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+ssize_t tty_read(struct file *file, char __user *buf, size_t count,
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loff_t *ppos)
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{
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int i;
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@@ -1141,7 +1130,7 @@ void tty_write_message(struct tty_struct *tty, char *msg)
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* write method will not be invoked in parallel for each device.
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*/
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-static ssize_t tty_write(struct file *file, const char __user *buf,
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+ssize_t tty_write(struct file *file, const char __user *buf,
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size_t count, loff_t *ppos)
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{
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struct inode *inode = file->f_path.dentry->d_inode;
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@@ -2002,7 +1991,7 @@ got_driver:
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* may be re-entered freely by other callers.
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*/
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-static unsigned int tty_poll(struct file *filp, poll_table *wait)
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+unsigned int tty_poll(struct file *filp, poll_table *wait)
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{
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struct tty_struct *tty = file_tty(filp);
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struct tty_ldisc *ld;
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@@ -2059,7 +2048,7 @@ out:
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return retval;
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}
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-static int tty_fasync(int fd, struct file *filp, int on)
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+int tty_fasync(int fd, struct file *filp, int on)
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{
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int retval;
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tty_lock();
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@@ -3246,11 +3235,6 @@ struct tty_struct *get_current_tty(void)
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}
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EXPORT_SYMBOL_GPL(get_current_tty);
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-void tty_default_fops(struct file_operations *fops)
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-{
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- *fops = tty_fops;
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-}
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-
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/*
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* Initialize the console device. This is called *early*, so
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* we can't necessarily depend on lots of kernel help here.
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--- a/include/linux/tty.h
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+++ b/include/linux/tty.h
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@@ -13,6 +13,7 @@
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#include <linux/tty_driver.h>
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#include <linux/tty_ldisc.h>
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#include <linux/mutex.h>
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+#include <linux/poll.h>
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#include <asm/system.h>
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@@ -470,7 +471,6 @@ extern int tty_perform_flush(struct tty_struct *tty, unsigned long arg);
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extern dev_t tty_devnum(struct tty_struct *tty);
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extern void proc_clear_tty(struct task_struct *p);
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extern struct tty_struct *get_current_tty(void);
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-extern void tty_default_fops(struct file_operations *fops);
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extern struct tty_struct *alloc_tty_struct(void);
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extern int tty_alloc_file(struct file *file);
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extern void tty_add_file(struct tty_struct *tty, struct file *file);
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@@ -482,6 +482,19 @@ extern void deinitialize_tty_struct(struct tty_struct *tty);
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extern struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx,
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int first_ok);
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extern int tty_release(struct inode *inode, struct file *filp);
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+extern ssize_t tty_read(struct file *, char __user *, size_t, loff_t *);
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+extern ssize_t tty_write(struct file *, const char __user *, size_t, loff_t *);
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+extern unsigned int tty_poll(struct file *, poll_table *);
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+
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+#ifdef CONFIG_COMPAT
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+extern long tty_compat_ioctl(struct file *file, unsigned int cmd,
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+ unsigned long arg);
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+#else
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+#define tty_compat_ioctl NULL
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+#endif
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+extern int tty_fasync(int fd, struct file *filp, int on);
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+
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+
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extern int tty_init_termios(struct tty_struct *tty);
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extern struct tty_struct *tty_pair_get_tty(struct tty_struct *tty);
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