Re: [PATCH 0/3] zram: Replace pr_* with dev_*

[Sergey Senozhatsky]

On (08/06/15 18:48), Joe Perches wrote:
[..]
> > And I saw some time ago people doing that type of thing. So I'd like
> > to avoid unnecessary pain for zram users even if the messages are not
> > guaranteed to remain stable between kernel releases. Just my opinion.

[..]
> because dmesg is not an ABI.

I absolutely agree, this is debatable and controversial. I saw people
grepping dmesg and they treated error messages just like errno codes or
like additional info to attach to errno. Whether we like or not, but, it
seems, for that cases error message is more or less part of ABI. It's
fine when we change _info message, but touching _warn or _err message
is a bit different thing, *I think*. Let's hear from Minchan.

	-ss
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