[S390] termio <-> termios conversion error handling.

Get rid of our own user_termio_to_kernel_termios() and
kernel_termios_to_user_termio() macros which didn't check for errors
on user space accesses. Instead use the generic functions which
handle this properly.
In addition the generic version of user_termio_to_kernel_termios()
also copies the c_line member which was missing in our variant.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/include/asm-s390/termios.h b/include/asm-s390/termios.h
index d1e29cca54c9d91f93f8117bba3e790310abdce8..62b23caf370e09e7c70da9af92a10c373c7e1ed4 100644 (file)
--- a/include/asm-s390/termios.h
+++ b/include/asm-s390/termios.h
@@ -75,39 +75,7 @@ struct termio {
 */
 #define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
 
-/*
- * Translate a "termio" structure into a "termios". Ugh.
- */
-#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \
-       unsigned short __tmp; \
-       get_user(__tmp,&(termio)->x); \
-       (termios)->x = (0xffff0000 & ((termios)->x)) | __tmp; \
-}
-
-#define user_termio_to_kernel_termios(termios, termio) \
-({ \
-       SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \
-       SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \
-       SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \
-       SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \
-       copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
-})
-
-/*
- * Translate a "termios" structure into a "termio". Ugh.
- */
-#define kernel_termios_to_user_termio(termio, termios) \
-({ \
-       put_user((termios)->c_iflag, &(termio)->c_iflag); \
-       put_user((termios)->c_oflag, &(termio)->c_oflag); \
-       put_user((termios)->c_cflag, &(termio)->c_cflag); \
-       put_user((termios)->c_lflag, &(termio)->c_lflag); \
-       put_user((termios)->c_line,  &(termio)->c_line); \
-       copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
-})
-
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
+#include <asm-generic/termios.h>
 
 #endif /* __KERNEL__ */