cregit-Linux how code gets into the kernel

Release 4.14 arch/parisc/include/asm/termios.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PARISC_TERMIOS_H

#define _PARISC_TERMIOS_H

#include <uapi/asm/termios.h>


/*      intr=^C         quit=^\         erase=del       kill=^U
        eof=^D          vtime=\0        vmin=\1         sxtc=\0
        start=^Q        stop=^S         susp=^Z         eol=\0
        reprint=^R      discard=^U      werase=^W       lnext=^V
        eol2=\0
*/

#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); \
        *(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); \
})

/*
 * 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))

#endif	/* _PARISC_TERMIOS_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)6675.86%125.00%
Alan Cox1921.84%125.00%
David Howells11.15%125.00%
Greg Kroah-Hartman11.15%125.00%
Total87100.00%4100.00%
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