Messages in this thread |  | | Date | Tue, 7 Jan 2020 16:07:24 -0500 | From | "Theodore Y. Ts'o" <> | Subject | Re: [PATCH] char/random: silence a lockdep splat with printk() |
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On Wed, Nov 13, 2019 at 04:16:25PM -0500, Qian Cai wrote: > From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> > > Sergey didn't like the locking order, > > uart_port->lock -> tty_port->lock > > uart_write (uart_port->lock) > __uart_start > pl011_start_tx > pl011_tx_chars > uart_write_wakeup > tty_port_tty_wakeup > tty_port_default > tty_port_tty_get (tty_port->lock) > > but those code is so old, and I have no clue how to de-couple it after > checking other locks in the splat. There is an onging effort to make all > printk() as deferred, so until that happens, workaround it for now as a > short-term fix.
Applied, thanks.
- Ted
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