TTY: serial, fix includes in some drivers
linux/tty_flip.h is included in linux/serial_core.h. But this may (and will) change in the future. Then we would get build errors such as: .../tty/serial/max3107.c: In function ‘put_data_to_circ_buf’: .../tty/serial/max3107.c:149:2: error: implicit declaration of function ‘tty_insert_flip_string’ So fix all the drviers which call tty flip buffer helpers to really include linux/tty_flip.h. And also make sure that those include linux/tty.h when operating with struct tty_struct. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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