[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>

2 files changed, 2 insertions, 0 deletions

diff --git a/arch/sparc/kernel/sunos_ioctl.c b/arch/sparc/kernel/sunos_ioctl.c
index a6ba3d26222c..32e8274e4357 100644
--- a/arch/sparc/kernel/sunos_ioctl.c
+++ b/arch/sparc/kernel/sunos_ioctl.c
@@ -11,6 +11,7 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/termios.h>
+#include <linux/tty.h>
 #include <linux/ioctl.h>
 #include <linux/route.h>
 #include <linux/sockios.h>
diff --git a/arch/sparc64/kernel/sunos_ioctl32.c b/arch/sparc64/kernel/sunos_ioctl32.c
index 3f619ead22cc..a05e43d51755 100644
--- a/arch/sparc64/kernel/sunos_ioctl32.c
+++ b/arch/sparc64/kernel/sunos_ioctl32.c
@@ -11,6 +11,7 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/termios.h>
+#include <linux/tty.h>
 #include <linux/ioctl.h>
 #include <linux/route.h>
 #include <linux/sockios.h>