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Groups > linux.kernel > #1578952
| From | Jiri Kosina <jikos@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: Mistake in include IS_ENABLED(CONFIG_LIVEPATCH) |
| Date | 2017-02-11 09:00 +0100 |
| Message-ID | <t9AL8-6m6-1@gated-at.bofh.it> (permalink) |
| References | <t9ygi-4X7-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sat, 11 Feb 2017, Denys Fedoryshchenko wrote: > I noticed that sample of livepatch is not working in 4.9.9, because in > include, > linux/livepatch.h > it is: > #if IS_ENABLED(CONFIG_LIVEPATCH) > > while config option is: > CONFIG_HAVE_LIVEPATCH=y > > After editing livepatch.h sample module compiles fine > > Probably that's just a typo? There are two config variables. CONFIG_HAVE_LIVEPATCH is set by those architectures for which livepatching implementation exists. CONFIG_LIVEPATCH is the actual config option turning the support in kernel on/off. What you are seeing is that if you have kernel configuration that has livepatching (CONFIG_LIVEPATCH) turned off, the sample module doesn't compile for it either. I'd say it's not unexpected behavior. -- Jiri Kosina SUSE Labs
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Mistake in include IS_ENABLED(CONFIG_LIVEPATCH) Denys Fedoryshchenko <nuclearcat@nuclearcat.com> - 2017-02-11 06:20 +0100 Re: Mistake in include IS_ENABLED(CONFIG_LIVEPATCH) Jiri Kosina <jikos@kernel.org> - 2017-02-11 09:00 +0100
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