[PATCH v4 1/6] printk: Collapse shutdown types into a single dump reason

[Pavel Tatashin]

On Fri, May 15, 2020 at 2:44 PM Kees Cook <keescook at chromium.org> wrote:
>
> To turn the KMSG_DUMP_* reasons into a more ordered list, collapse
> the redundant KMSG_DUMP_(RESTART|HALT|POWEROFF) reasons into
> KMSG_DUMP_SHUTDOWN. The current users already don't meaningfully
> distinguish between them, so there's no need to, as discussed here:
> https://lore.kernel.org/lkml/CA+CK2bAPv5u1ih5y9t5FUnTyximtFCtDYXJCpuyjOyHNOkRdqw@mail.gmail.com/
>
> Signed-off-by: Kees Cook <keescook at chromium.org>

Maybe it makes sense to mention in the commit log that for all three
merged cases there is a pr_emerg() message logged right before the
kmsg_dump(), thus the reason is distinguishable from the dmesg log
itself.

Reviewed-by: Pavel Tatashin <pasha.tatashin at soleen.com>