Messages in this thread Patch in this message | | | Date | Fri, 26 May 2017 14:53:25 -0700 | From | Jessica Yu <> | Subject | Re: [PATCH] livepatch: Make livepatch dependent on !TRIM_UNUSED_KSYMS |
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+++ Miroslav Benes [26/05/17 14:45 +0200]: >If TRIM_UNUSED_KSYMS is enabled, all unneeded exported symbols are made >unexported. Two-pass build of the kernel is done to find out which >symbols are needed based on a configuration. This effectively >complicates things for out-of-tree modules. > >Livepatch exports functions to (un)register and enable/disable a live >patch. The only in-tree module which uses these functions is a sample in >samples/livepatch/. If the sample is disabled, the functions are >trimmed and out-of-tree live patches cannot be built. > >Note that live patches are intended to be built out-of-tree. > >Suggested-by: Michal Marek <mmarek@suse.com> >Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Makes sense to me:
Acked-by: Jessica Yu <jeyu@redhat.com>
>--- > kernel/livepatch/Kconfig | 1 + > 1 file changed, 1 insertion(+) > >diff --git a/kernel/livepatch/Kconfig b/kernel/livepatch/Kconfig >index 045022557936..ec4565122e65 100644 >--- a/kernel/livepatch/Kconfig >+++ b/kernel/livepatch/Kconfig >@@ -10,6 +10,7 @@ config LIVEPATCH > depends on SYSFS > depends on KALLSYMS_ALL > depends on HAVE_LIVEPATCH >+ depends on !TRIM_UNUSED_KSYMS > help > Say Y here if you want to support kernel live patching. > This option has no runtime impact until a kernel "patch" >-- >2.12.2 >
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