Johan Hovold 107c6b6058 Revert "serial: 8250: Fix reporting real baudrate value in c_ospeed field" ... commit d02b006b29 upstream. This reverts commit 32262e2e42. The commit in question claims to determine the inverse of serial8250_get_divisor() but failed to notice that some drivers override the default implementation using a get_divisor() callback. This means that the computed line-speed values can be completely wrong and results in regular TCSETS requests failing (the incorrect values would also be passed to any overridden set_divisor() callback). Similarly, it also failed to honour the old (deprecated) ASYNC_SPD_FLAGS and would break applications relying on those when re-encoding the actual line speed. There are also at least two quirks, UART_BUG_QUOT and an OMAP1510 workaround, which were happily ignored and that are now broken. Finally, even if the offending commit were to be implemented correctly, this is a new feature and not something which should be backported to stable. Cc: Pali Rohár <pali@kernel.org> Fixes: 32262e2e42 ("serial: 8250: Fix reporting real baudrate value in c_ospeed field") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20211007133146.28949-1-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-09-23 14:16:59 +02:00
..
hvc	tty: hvc: fix return value of __setup handler	2022-04-08 14:40:28 +02:00
ipwireless
serdev
serial	Revert "serial: 8250: Fix reporting real baudrate value in c_ospeed field"	2022-09-23 14:16:59 +02:00
vt	vt: Clear selection before changing the font	2022-09-08 11:11:37 +02:00
amiserial.c
cyclades.c	tty: drivers/tty/, stop using tty_schedule_flip()	2022-07-29 17:19:27 +02:00
ehv_bytechan.c
goldfish.c	tty: drivers/tty/, stop using tty_schedule_flip()	2022-07-29 17:19:27 +02:00
isicom.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c	tty: drivers/tty/, stop using tty_schedule_flip()	2022-07-29 17:19:27 +02:00
moxa.h
mxser.c	mxser: fix xmit_buf leak in activate when LSR == 0xff	2022-04-08 14:40:23 +02:00
mxser.h
n_gsm.c	tty: n_gsm: avoid call of sleeping functions from atomic context	2022-09-15 11:32:02 +02:00
n_hdlc.c	tty: n_hdlc: make n_hdlc_tty_wakeup() asynchronous	2021-12-22 09:30:56 +01:00
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c	tty: n_tty: Restore EOF push handling behavior	2022-06-14 18:32:30 +02:00
nozomi.c
pty.c	tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()	2022-07-29 17:19:28 +02:00
rocket_int.h
rocket.c
rocket.h
synclink_gt.c	tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()	2022-06-14 18:32:41 +02:00
synclink.c
synclinkmp.c
sysrq.c	sysrq: do not omit current cpu when showing backtrace of all active CPUs	2022-06-14 18:32:42 +02:00
tty_audit.c
tty_baudrate.c
tty_buffer.c	tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()	2022-07-29 17:19:28 +02:00
tty_io.c
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c