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2016-04-30tty: core: Undefine ASYNC_* flags superceded by TTY_PORT* flagsPeter Hurley1-0/+4
Purposefully break out-of-tree driver compiles using kernel ASYNC_* bits which have been superceded by TTY_PORT* flags and their respective helper functions. Signed-off-by: Peter Hurley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-04-30tty: Define ASYNC_ replacement bitsPeter Hurley1-1/+8
Prepare for relocating kernel private state bits out of tty_port::flags field; tty_port::flags field is not atomic and can become corrupted by concurrent updates. It also suffers from the complication of sharing in a userspace-visible field which must be masked. Define new tty_port::iflags field and new, substitute bit definitions for the former ASYNC_* flags. Signed-off-by: Peter Hurley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-05-24tty: fix comment of ASYNCB_SPD_HIMasahiro Yamada1-1/+1
This comment does not reflect the actual code. It should be 57600, not 56000. Signed-off-by: Masahiro Yamada <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2014-11-06tty: warn on deprecated serial flagsJiri Slaby1-0/+2
When somebody calls TIOCSSERIAL ioctl with serial flags to set one of * ASYNC_SESSION_LOCKOUT * ASYNC_PGRP_LOCKOUT * ASYNC_CALLOUT_NOHUP * ASYNC_AUTOPROBE nothing happens. We actually ignore the flags for over a decade at least (I checked 2.6.0). So start yelling at users who use those flags, that they shouldn't. Signed-off-by: Jiri Slaby <[email protected]> Cc: Peter Hurley <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2014-11-05tty: Document defunct ASYNC_SPLIT_TERMIOS flag in uapi headerPeter Hurley1-1/+1
The last vestige of ASYNC_SPLIT_TERMIOS was removed by commit 'cris: Remove obsolete ASYNC_SPLIT_TERMIOS behavior'. Mark the flag as defunct in the uapi header. Signed-off-by: Peter Hurley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2014-11-05tty: Document defunct ASYNC_* bits in uapi headerPeter Hurley1-4/+5
Note the serial_struct flags for which the kernel ignores and performs no action. The flags cannot be removed since they form part of the userspace interface via the TIOCSSERIAL/TIOCGSERIAL ioctls. Signed-off-by: Peter Hurley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2014-11-05tty,serial: Unify UPF_* and ASYNC_* flag definitionsPeter Hurley1-1/+5
The userspace-defined ASYNC_* flags in include/uapi/linux/tty_flags.h are the authoritative bit definitions for the serial_struct flags, and thus for any derivative values or fields. Although the serial core provides the TIOCSSERIAL and TIOCGSERIAL ioctls to set and retrieve these flags from userspace, it defines these bits independently, as UPF_* macros. Define the UPF_* macros which are userspace-modifiable directly from the ASYNC_* symbolic constants. Add compile-time test to ensure the bits changeable by TIOCSSERIAL match the defined range in the uapi header. Add ASYNCB_MAGIC_MULTIPLIER to the uapi header since this bit is programmable by userspace. Signed-off-by: Peter Hurley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-10-13UAPI: (Scripted) Disintegrate include/linuxDavid Howells1-0/+78
Signed-off-by: David Howells <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Acked-by: Michael Kerrisk <[email protected]> Acked-by: Paul E. McKenney <[email protected]> Acked-by: Dave Jones <[email protected]>
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