Messages in this thread |  | | From | Michael Ellerman <> | Subject | Re: [PATCH 04/15] powerpc/powernv: opal-kmsg use flush fallback from console code | Date | Mon, 07 May 2018 20:36:39 +1000 |
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Nicholas Piggin <npiggin@gmail.com> writes: > On Fri, 04 May 2018 15:16:37 +1000 > Michael Ellerman <mpe@ellerman.id.au> wrote: >> Nicholas Piggin <npiggin@gmail.com> writes: >> > Use the more refined and tested event polling loop from opal_put_chars >> > as the fallback console flush in the opal-kmsg path. This loop is used >> > by the console driver today, whereas the opal-kmsg fallback is not >> > likely to have been used for years. >> > >> > Use WARN_ONCE rather than a printk when the fallback is invoked to >> > prepare for moving the console flush into a common function. >> >> Do we want to add a WARN in that path? If we're panicking things might >> get worse if we WARN (which takes a trap). > > True, probably a good idea not to... oh there's a printk_once so > that'll work nicely.
Cool.
I have this series in a tree so you can send me an incremental diff if it's reasonably small.
cheers
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