Re: [PATCH 4.4 018/107] x86/paravirt: Make native_save_fl() extern inline

From: Ben Hutchings
Date: Fri Aug 24 2018 - 19:08:14 EST


On Mon, 2018-07-23 at 14:41 +0200, Greg Kroah-Hartman wrote:
> 4.4-stable review patch.ÂÂIf anyone has any objections, please let me know.
>
> ------------------
>
> From: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
>
> commit d0a8d9378d16eb3c69bd8e6d23779fbdbee3a8c7 upstream.
>
> native_save_fl() is marked static inline, but by using it as
> a function pointer in arch/x86/kernel/paravirt.c, it MUST be outlined.
>
> paravirt's use of native_save_fl() also requires that no GPRs other than
> %rax are clobbered.
[...]

Shouldn't native_restore_fl() be changed similarly? You added an out-
of-line definition, but it doesn't seem like it will actually be used.

Ben.

--
Ben Hutchings, Software Developer  Codethink Ltd
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