On 06/25/2010 01:02 PM, Denis Kirjanov wrote:

On 06/25/2010 12:42 AM, Alexander Graf wrote:

quoted

On 24.06.2010, at 21:44, Denis Kirjanov wrote:

quoted

Fix build warning:
arch/powerpc/kvm/book3s_64_mmu.c: In function
'kvmppc_mmu_book3s_64_esid_to_vsid':
arch/powerpc/kvm/book3s_64_mmu.c:446: warning: 'slb' may be used
uninitialized in this function
Signed-off-by: Denis Kirjanov<dkirjanov@kernel.org>

Are you sure this isn't a broken compiler? I don't see where it could
be used uninitialized.

I'm using gcc version 4.3.4 (Gentoo 4.3.4 p1.1, pie-10.1.5)
slb pointer initialized inside conditional branch
and used later in the case case MSR_DR|MSR_IR

This is based on linux-next tree (-next-20100623)