[PATCH] tty: preparatory structures for termios revamp

In order to sort out our struct termios and add proper speed control we need
to separate the kernel and user termios structures.  Glibc is fine but the
other libraries rely on the kernel exported struct termios and we need to
extend this without breaking the ABI/API

To do so we add a struct ktermios which is the kernel view of a termios
structure and overlaps the struct termios with extra fields on the end for
now.  (That limitation will go away in later patches).  Some platforms (eg
alpha) planned ahead and thus use the same struct for both, others did not.

This just adds the structures but does not use them, it seems a sensible
splitting point for bisect if there are compile failures (not that I expect
them)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index 337c692f6fd66e98ba057cc46fc38b9a7e5fdad0..ce3a8bac66ffb55d6d145b544d1b46e133caeaf6 100644 (file)
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -798,7 +798,7 @@ static unsigned int get_baud(struct tty_struct *tty)
  */
 static void set_baud(struct tty_struct *tty, unsigned int baudcode)
 {
-       struct termios old_termios = *(tty->termios);
+       struct ktermios old_termios = *(tty->termios);
        tty->termios->c_cflag &= ~CBAUD;        /* Clear the old baud setting */
        tty->termios->c_cflag |= baudcode;      /* Set the new baud setting */
        tty->driver->set_termios(tty, &old_termios);

diff --git a/include/asm-alpha/termbits.h b/include/asm-alpha/termbits.h
index 5541101b58aef8c962ebc416539daefe12cc3fd8..ad854a4a3af63061290bd0fa02a0a58dc8f16bac 100644 (file)
--- a/include/asm-alpha/termbits.h
+++ b/include/asm-alpha/termbits.h
@@ -25,6 +25,19 @@ struct termios {
        speed_t c_ospeed;               /* output speed */
 };
 
+/* Alpha has matching termios and ktermios */
+
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_cc[NCCS];                /* control characters */
+       cc_t c_line;                    /* line discipline (== c_cc[19]) */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VEOF 0
 #define VEOL 1

diff --git a/include/asm-arm/termbits.h b/include/asm-arm/termbits.h
index bbc6e1d24d3fc742aa2b8ab12d9492dc1fa22fa8..a3f4fe1742d0ac84abb7a3dc9c2996579ab3e123 100644 (file)
--- a/include/asm-arm/termbits.h
+++ b/include/asm-arm/termbits.h
@@ -15,6 +15,18 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-arm26/termbits.h b/include/asm-arm26/termbits.h
index bbc6e1d24d3fc742aa2b8ab12d9492dc1fa22fa8..a3f4fe1742d0ac84abb7a3dc9c2996579ab3e123 100644 (file)
--- a/include/asm-arm26/termbits.h
+++ b/include/asm-arm26/termbits.h
@@ -15,6 +15,18 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-avr32/termbits.h b/include/asm-avr32/termbits.h
index 9dc6eacafa3388ff30d2d05704825c2d918e6e85..c215fafdae4d66e9960c0daa7a75a09c1dbd220b 100644 (file)
--- a/include/asm-avr32/termbits.h
+++ b/include/asm-avr32/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-cris/termbits.h b/include/asm-cris/termbits.h
index be0836d2f2825fcf98df6710e6bd768b602cc1f0..8d8cec225fe1c37aed157383dc5f1c9c4152db79 100644 (file)
--- a/include/asm-cris/termbits.h
+++ b/include/asm-cris/termbits.h
@@ -19,6 +19,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-frv/termbits.h b/include/asm-frv/termbits.h
index 74f20d6e292f2e5c4d849b2ce09fefb5669c5e39..2d6d389cff49886f1aa6ac1bd1ddafcf918d5ead 100644 (file)
--- a/include/asm-frv/termbits.h
+++ b/include/asm-frv/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-h8300/termbits.h b/include/asm-h8300/termbits.h
index fa69ae00eda3b647ac513672fc738e0073b5977d..6a1f4d3807b48fd5510f9ec79eccaad2480567f7 100644 (file)
--- a/include/asm-h8300/termbits.h
+++ b/include/asm-h8300/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-i386/termbits.h b/include/asm-i386/termbits.h
index 72c10e3190f832c9140a51a6a9e461aad5110a2c..12baf1d6343ff7be1c6155cff33f650658f666bc 100644 (file)
--- a/include/asm-i386/termbits.h
+++ b/include/asm-i386/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-ia64/termbits.h b/include/asm-ia64/termbits.h
index b9e843f7dc421ec1ce0f11f5d442504da5e70fca..4531a511bde58ca49e1f051264051d10fa690d8d 100644 (file)
--- a/include/asm-ia64/termbits.h
+++ b/include/asm-ia64/termbits.h
@@ -26,6 +26,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-m32r/termbits.h b/include/asm-m32r/termbits.h
index 5ace3702df7579cfe9ea3b25703bd1016f369489..faf2bd0504c15153b84baa49ab3c507bdb738184 100644 (file)
--- a/include/asm-m32r/termbits.h
+++ b/include/asm-m32r/termbits.h
@@ -19,6 +19,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-m68k/termbits.h b/include/asm-m68k/termbits.h
index e9eec3eb07182baac5709828a1ce1b312d93a988..a194092240fb9a895483c1265f2782f119b921d9 100644 (file)
--- a/include/asm-m68k/termbits.h
+++ b/include/asm-m68k/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-mips/termbits.h b/include/asm-mips/termbits.h
index b62ec7c521cc3807793aa552e41fc0a20591c6ba..0bbe07b42a0767b41bfb0cf3ebb069f7905e1611 100644 (file)
--- a/include/asm-mips/termbits.h
+++ b/include/asm-mips/termbits.h
@@ -30,6 +30,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR           0              /* Interrupt character [ISIG].  */
 #define VQUIT           1              /* Quit character [ISIG].  */

diff --git a/include/asm-parisc/termbits.h b/include/asm-parisc/termbits.h
index 372b634892c9eadefba5d30ee4fbe644598c72b6..a46e299a93912ae61393b8e9a0083e55c370b7df 100644 (file)
--- a/include/asm-parisc/termbits.h
+++ b/include/asm-parisc/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-powerpc/termbits.h b/include/asm-powerpc/termbits.h
index 6d533b07aaf52daa3e1911df34fffcc6bf788d4d..b572f21b32c4b188a6f250303cece2256f8531e7 100644 (file)
--- a/include/asm-powerpc/termbits.h
+++ b/include/asm-powerpc/termbits.h
@@ -30,6 +30,19 @@ struct termios {
        speed_t c_ospeed;               /* output speed */
 };
 
+/* For PowerPC the termios and ktermios are the same */
+
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR           0
 #define VQUIT           1

diff --git a/include/asm-s390/termbits.h b/include/asm-s390/termbits.h
index eb3f8bfabf6150a2f8516248073407802494a4c8..585c78a6e4070b9ff63413271646120f28f31178 100644 (file)
--- a/include/asm-s390/termbits.h
+++ b/include/asm-s390/termbits.h
@@ -25,6 +25,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-sh/termbits.h b/include/asm-sh/termbits.h
index 4f9822a8e7b4834d11a67b90d822fefd2a2047ec..f1b7b46f4e9a46549a41648716e27e0071783c69 100644 (file)
--- a/include/asm-sh/termbits.h
+++ b/include/asm-sh/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-sparc/termbits.h b/include/asm-sparc/termbits.h
index 1794d71134b73599fdbd17129f5396a58216ae41..5eb00a105d7c0f70764223e162fc05a4e6d6054a 100644 (file)
--- a/include/asm-sparc/termbits.h
+++ b/include/asm-sparc/termbits.h
@@ -31,6 +31,18 @@ struct termios {
 #endif
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       cc_t _x_cc[2];                  /* We need them to hold vmin/vtime */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR    0
 #define VQUIT    1

diff --git a/include/asm-sparc64/termbits.h b/include/asm-sparc64/termbits.h
index b07715273ed434ab1159cf4231bb1e4501c5e58f..705cd44b41730d0bd8f5604f854c6fc53e76b922 100644 (file)
--- a/include/asm-sparc64/termbits.h
+++ b/include/asm-sparc64/termbits.h
@@ -33,6 +33,18 @@ struct termios {
 #endif
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       cc_t _x_cc[2];                  /* We need them to hold vmin/vtime */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR    0
 #define VQUIT    1

diff --git a/include/asm-v850/termbits.h b/include/asm-v850/termbits.h
index 212d4e279263c56318fb7be1112880eea0a741e3..f3b433032089411f272e8c9484a8f54885c8067c 100644 (file)
--- a/include/asm-v850/termbits.h
+++ b/include/asm-v850/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1

diff --git a/include/asm-x86_64/termbits.h b/include/asm-x86_64/termbits.h
index bd950946e52c7979005a21814322e86abbc8a20e..f31918cea510fb0c81e8bd4e023f95828e6fec83 100644 (file)
--- a/include/asm-x86_64/termbits.h
+++ b/include/asm-x86_64/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        cc_t c_cc[NCCS];                /* control characters */
 };
 
+struct ktermios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+       speed_t c_ispeed;               /* input speed */
+       speed_t c_ospeed;               /* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1