linux-kernel - Re: [PATCH] kvm: remove unused variable 'vcpu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAGG-pUR7XPpYXVCg4wj_NY6ztTFTNsAVLEp+AsUL18gnTNqJjg@mail.gmail.com>
Date:	Tue, 1 Dec 2015 22:11:13 -0300
From:	"Geyslan G. Bem" <geyslan@...il.com>
To:	Daniel Axtens <dja@...ens.net>
Cc:	kvm@...r.kernel.org, Gleb Natapov <gleb@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>, kvm-ppc@...r.kernel.org,
	Paul Mackerras <paulus@...ba.org>,
	Paolo Bonzini <pbonzini@...hat.com>,
	linuxppc-dev@...ts.ozlabs.org, Alexander Graf <agraf@...e.com>
Subject: Re: [PATCH] kvm: remove unused variable 'vcpu_book3s'

2015-12-01 21:34 GMT-03:00 Daniel Axtens <dja@...ens.net>:
> "Geyslan G. Bem" <geyslan@...il.com> writes:
>
>> The vcpu_book3s struct is assigned but never used. So remove it.
>
> Just out of interest, how did you find this? Compiler warning? Static
> analysis? Manual inspection?

Sorry, I should have done the patch self contained. I caught it
through static analysis (cppcheck).

>
> Thanks in advance!

You're welcome.

>
> Regards,
> Daniel
>
>>
>> Signed-off-by: Geyslan G. Bem <geyslan@...il.com>
>> ---
>>  arch/powerpc/kvm/book3s_64_mmu.c | 3 ---
>>  1 file changed, 3 deletions(-)
>>
>> diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
>> index 774a253..9bf7031 100644
>> --- a/arch/powerpc/kvm/book3s_64_mmu.c
>> +++ b/arch/powerpc/kvm/book3s_64_mmu.c
>> @@ -377,15 +377,12 @@ no_seg_found:
>>
>>  static void kvmppc_mmu_book3s_64_slbmte(struct kvm_vcpu *vcpu, u64 rs, u64 rb)
>>  {
>> -     struct kvmppc_vcpu_book3s *vcpu_book3s;
>>       u64 esid, esid_1t;
>>       int slb_nr;
>>       struct kvmppc_slb *slbe;
>>
>>       dprintk("KVM MMU: slbmte(0x%llx, 0x%llx)\n", rs, rb);
>>
>> -     vcpu_book3s = to_book3s(vcpu);
>> -
>>       esid = GET_ESID(rb);
>>       esid_1t = GET_ESID_1T(rb);
>>       slb_nr = rb & 0xfff;
>> --
>> 2.6.2
>>
>> _______________________________________________
>> Linuxppc-dev mailing list
>> Linuxppc-dev@...ts.ozlabs.org
>> https://lists.ozlabs.org/listinfo/linuxppc-dev



-- 
Regards,

Geyslan G. Bem
hackingbits.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/