| Subject | Re: [PATCH 04/19] powerpc/kvm: Mark variable tmp unused | From | christophe leroy <> | Date | Fri, 23 Mar 2018 11:08:00 +0100 |
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Le 22/03/2018 à 21:19, Mathieu Malaterre a écrit : > Add gcc attribute unused to variable tmp. Fix warning treated as error with > W=1: > > arch/powerpc/kernel/kvm.c:675:6: error: variable ‘tmp’ set but not used [-Werror=unused-but-set-variable] > > Signed-off-by: Mathieu Malaterre <malat@debian.org> > --- > arch/powerpc/kernel/kvm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c > index 9ad37f827a97..cd3c088283f9 100644 > --- a/arch/powerpc/kernel/kvm.c > +++ b/arch/powerpc/kernel/kvm.c > @@ -672,7 +672,7 @@ static void kvm_use_magic_page(void) > { > u32 *p; > u32 *start, *end; > - u32 tmp; > + u32 tmp __maybe_unused; > u32 features; > > /* Tell the host to map the magic page to -4096 on all CPUs */ >
This fonction should use fault_in_pages_readable() instead of hardcoding the verification.
Christophe
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