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tty: Replace #ifdef TTY_DEBUG_HANGUP with tty_debug_hangup()

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Add tty_debug_hangup() macro which uses tty_debug to print the
debug message; remove inlined #ifdefs.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2015-07-12 22:49:09 -04:00 committed by Greg Kroah-Hartman
parent e2dfa3d387
commit accff793af
1 changed files with 18 additions and 29 deletions
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47
drivers/tty/tty_io.c
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@ -106,6 +106,11 @@
#include <linux/nsproxy.h>
#undef TTY_DEBUG_HANGUP
#ifdef TTY_DEBUG_HANGUP
# define tty_debug_hangup(tty, f, args...) tty_debug(tty, f, ##args)
#else
# define tty_debug_hangup(tty, f, args...) do { } while (0)
#endif
#define TTY_PARANOIA_CHECK 1
#define CHECK_TTY_COUNT 1
@ -774,9 +779,7 @@ static void do_tty_hangup(struct work_struct *work)
void tty_hangup(struct tty_struct *tty)
{
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "\n");
#endif
tty_debug_hangup(tty, "\n");
schedule_work(&tty->hangup_work);
}
@ -793,9 +796,7 @@ EXPORT_SYMBOL(tty_hangup);
void tty_vhangup(struct tty_struct *tty)
{
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "\n")
#endif
tty_debug_hangup(tty, "\n");
__tty_hangup(tty, 0);
}
@ -832,9 +833,7 @@ void tty_vhangup_self(void)
static void tty_vhangup_session(struct tty_struct *tty)
{
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "\n");
#endif
tty_debug_hangup(tty, "\n");
__tty_hangup(tty, 1);
}
@ -928,11 +927,8 @@ void disassociate_ctty(int on_exit)
tty->pgrp = NULL;
spin_unlock_irqrestore(&tty->ctrl_lock, flags);
tty_kref_put(tty);
} else {
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "no current tty\n");
#endif
}
} else
tty_debug_hangup(tty, "no current tty\n");
spin_unlock_irq(&current->sighand->siglock);
/* Now clear signal->tty under the lock */
@ -1788,9 +1784,7 @@ int tty_release(struct inode *inode, struct file *filp)
return 0;
}
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "(tty count=%d)...\n", tty->count);
#endif
tty_debug_hangup(tty, "(tty count=%d)...\n", tty->count);
if (tty->ops->close)
tty->ops->close(tty, filp);
@ -1900,9 +1894,7 @@ int tty_release(struct inode *inode, struct file *filp)
if (!final)
return 0;
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "final close\n");
#endif
tty_debug_hangup(tty, "final close\n");
/*
* Ask the line discipline code to release its structures
*/
@ -1911,9 +1903,7 @@ int tty_release(struct inode *inode, struct file *filp)
/* Wait for pending work before tty destruction commmences */
tty_flush_works(tty);
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "freeing structure...\n");
#endif
tty_debug_hangup(tty, "freeing structure...\n");
/*
* The release_tty function takes care of the details of clearing
* the slots and preserving the termios structure. The tty_unlock_pair
@ -2102,9 +2092,9 @@ retry_open:
if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
tty->driver->subtype == PTY_TYPE_MASTER)
noctty = 1;
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "(tty count=%d)\n", tty->count);
#endif
tty_debug_hangup(tty, "(tty count=%d)\n", tty->count);
if (tty->ops->open)
retval = tty->ops->open(tty, filp);
else
@ -2112,9 +2102,8 @@ retry_open:
filp->f_flags = saved_flags;
if (retval) {
#ifdef TTY_DEBUG_HANGUP
tty_debug(tty, "error %d, releasing...\n", retval);
#endif
tty_debug_hangup(tty, "error %d, releasing...\n", retval);
tty_unlock(tty); /* need to call tty_release without BTM */
tty_release(inode, filp);
if (retval != -ERESTARTSYS)