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b0052fcaef
Commit f629307c857c030d5a3dd777fee37c8bb395e171 introduced uses of kernel_termios_to_user_termios_1 and user_termios_to_kernel_termios_1 on all architectures. However, powerpc, s390, avr32 and frv don't currently define those functions since their termios struct didn't need to be changed when the arbitrary baud rate stuff was added, and thus the kernel won't currently build on those architectures. This adds definitions of kernel_termios_to_user_termios_1 and user_termios_to_kernel_termios_1 to include/asm-generic/termios.h which are identical to kernel_termios_to_user_termios and user_termios_to_kernel_termios respectively. The definitions are the same because the "old" termios and "new" termios are in fact the same on these architectures (which are the same ones that use asm-generic/termios.h). Signed-off-by: Paul Mackerras <paulus@samba.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alan Cox <alan@redhat.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/* termios.h: generic termios/termio user copying/translation
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*/
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#ifndef _ASM_GENERIC_TERMIOS_H
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#define _ASM_GENERIC_TERMIOS_H
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#include <asm/uaccess.h>
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#ifndef __ARCH_TERMIO_GETPUT
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/*
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* Translate a "termio" structure into a "termios". Ugh.
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*/
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static inline int user_termio_to_kernel_termios(struct ktermios *termios,
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struct termio __user *termio)
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{
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unsigned short tmp;
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if (get_user(tmp, &termio->c_iflag) < 0)
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goto fault;
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termios->c_iflag = (0xffff0000 & termios->c_iflag) | tmp;
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if (get_user(tmp, &termio->c_oflag) < 0)
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goto fault;
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termios->c_oflag = (0xffff0000 & termios->c_oflag) | tmp;
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if (get_user(tmp, &termio->c_cflag) < 0)
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goto fault;
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termios->c_cflag = (0xffff0000 & termios->c_cflag) | tmp;
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if (get_user(tmp, &termio->c_lflag) < 0)
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goto fault;
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termios->c_lflag = (0xffff0000 & termios->c_lflag) | tmp;
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if (get_user(termios->c_line, &termio->c_line) < 0)
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goto fault;
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if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0)
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goto fault;
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return 0;
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fault:
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return -EFAULT;
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}
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/*
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* Translate a "termios" structure into a "termio". Ugh.
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*/
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static inline int kernel_termios_to_user_termio(struct termio __user *termio,
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struct ktermios *termios)
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{
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if (put_user(termios->c_iflag, &termio->c_iflag) < 0 ||
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put_user(termios->c_oflag, &termio->c_oflag) < 0 ||
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put_user(termios->c_cflag, &termio->c_cflag) < 0 ||
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put_user(termios->c_lflag, &termio->c_lflag) < 0 ||
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put_user(termios->c_line, &termio->c_line) < 0 ||
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copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0)
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return -EFAULT;
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return 0;
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}
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#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
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#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
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#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
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#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
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#endif /* __ARCH_TERMIO_GETPUT */
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#endif /* _ASM_GENERIC_TERMIOS_H */
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