Re: [PATCH] kbuild: use -flive-patching when CONFIG_LIVEPATCH is enabled

From: Jiri Kosina
Date: Wed Dec 19 2018 - 11:58:59 EST


On Wed, 19 Dec 2018, Josh Poimboeuf wrote:

> This option only makes sense for source-based patch generation, so isn't
> it a bit premature to make this change without proper source-based patch
> tooling?

The reality is though that before the full-fledged patch tooling exists,
people are actually already writing livepatches by hand, so this option is
useful for them.

> Also the commit message needs an analysis of the performance impacts.

Agreed. Especially as it's expected (*) to be completely in the noise
particularly for the kernel, it'd be good to have that documented in the
changelog.

(*) actually measured already for some subset of the IPA optimizations

Thanks,

--
Jiri Kosina
SUSE Labs