[PATCH] consolidate line discipline number definitions

The line discipline numbers N_* are currently defined for each architecture
individually, but (except for a seeming mistake) identically, in
asm/termios.h.  There is no obvious reason why these numbers should be
architecture specific, nor any apparent relationship with the termios
structure.  The total number of these, NR_LDISCS, is defined in linux/tty.h
anyway.  So I propose the following patch which moves the definitions of
the individual line disciplines to linux/tty.h too.

Three of these numbers (N_MASC, N_PROFIBUS_FDL, and N_SMSBLOCK) are unused
in the current kernel, but the patch still keeps the complete set in case
there are plans to use them yet.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 18 deletions

diff --git a/include/asm-i386/termios.h b/include/asm-i386/termios.h
index 03f548536d6b..7c99678a8f86 100644
--- a/include/asm-i386/termios.h
+++ b/include/asm-i386/termios.h
@@ -39,24 +39,6 @@ struct termio {
 
 /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
 
-/* line disciplines */
-#define N_TTY           0
-#define N_SLIP          1
-#define N_MOUSE         2
-#define N_PPP           3
-#define N_STRIP         4
-#define N_AX25          5
-#define N_X25           6       /* X.25 async */
-#define N_6PACK         7
-#define N_MASC          8       /* Reserved for Mobitex module <kaz@cafe.net> */
-#define N_R3964         9       /* Reserved for Simatic R3964 module */
-#define N_PROFIBUS_FDL  10      /* Reserved for Profibus <Dave@mvhi.com> */
-#define N_IRDA          11      /* Linux IR - http://irda.sourceforge.net/ */
-#define N_SMSBLOCK      12      /* SMS block mode - for talking to GSM data cards about SMS messages */
-#define N_HDLC          13      /* synchronous HDLC */
-#define N_SYNC_PPP      14      /* synchronous PPP */
-#define N_HCI           15  /* Bluetooth HCI UART */
-
 #ifdef __KERNEL__
 #include <linux/module.h>