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authorDave Miller <davem@davemloft.net>2008-02-07 09:13:27 +0100
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 17:42:16 +0100
commitf8a4c3b5250496f072d9098a641fd5642146d999 (patch)
tree827d2cca761a6b98bed158747eccc98bd2e5b6cf
parentkernel-doc: fix for vunmap function prototype (diff)
downloadlinux-f8a4c3b5250496f072d9098a641fd5642146d999.tar.xz
linux-f8a4c3b5250496f072d9098a641fd5642146d999.zip
tty: fix tty network driver interactions with TCGET/TCSET calls (x86 fix)
And to go with it Dave's type checking x86 termios headers. I've updated these as the original sent by Dave had some wrong types in it. Signed-off-by: Alan Cox <alan@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/asm-x86/termios.h74
1 files changed, 45 insertions, 29 deletions
diff --git a/include/asm-x86/termios.h b/include/asm-x86/termios.h
index d501748700d2..f72956331c49 100644
--- a/include/asm-x86/termios.h
+++ b/include/asm-x86/termios.h
@@ -41,6 +41,8 @@ struct termio {
#ifdef __KERNEL__
+#include <asm/uaccess.h>
+
/* intr=^C quit=^\ erase=del kill=^U
eof=^D vtime=\0 vmin=\1 sxtc=\0
start=^Q stop=^S susp=^Z eol=\0
@@ -58,39 +60,53 @@ struct termio {
*(unsigned short *) &(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); \
-})
+static inline int user_termio_to_kernel_termios(struct ktermios *termios,
+ struct termio __user *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);
+ return 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 termios2))
-
-#define kernel_termios_to_user_termios(u, k) \
- copy_to_user(u, k, sizeof(struct termios2))
-
-#define user_termios_to_kernel_termios_1(k, u) \
- copy_from_user(k, u, sizeof(struct termios))
-
-#define kernel_termios_to_user_termios_1(u, k) \
- copy_to_user(u, k, sizeof(struct termios))
+static inline int kernel_termios_to_user_termio(struct termio __user *termio,
+ struct ktermios *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);
+ return copy_to_user((termio)->c_cc, (termios)->c_cc, NCC);
+}
+
+static inline int user_termios_to_kernel_termios(struct ktermios *k,
+ struct termios2 __user *u)
+{
+ return copy_from_user(k, u, sizeof(struct termios2));
+}
+
+static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
+ struct ktermios *k)
+{
+ return copy_to_user(u, k, sizeof(struct termios2));
+}
+
+static inline int user_termios_to_kernel_termios_1(struct ktermios *k,
+ struct termios __user *u)
+{
+ return copy_from_user(k, u, sizeof(struct termios));
+}
+
+static inline int kernel_termios_to_user_termios_1(struct termios __user *u,
+ struct ktermios *k)
+{
+ return copy_to_user(u, k, sizeof(struct termios));
+}
#endif /* __KERNEL__ */