linux-kernel - Re: [PATCH] [19/23] KVM: Fix unused but set warnings

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]

Date:	Thu, 10 Jun 2010 17:19:23 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	kvm@...r.kernel.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [19/23] KVM: Fix unused but set warnings

On 06/10/2010 02:10 PM, Andi Kleen wrote:
> No real bugs in this one, the real bug I found is in a separate
> patch.
>
>
> Index: linux-2.6.35-rc2-gcc/arch/x86/kvm/vmx.c
> ===================================================================
> --- linux-2.6.35-rc2-gcc.orig/arch/x86/kvm/vmx.c
> +++ linux-2.6.35-rc2-gcc/arch/x86/kvm/vmx.c
> @@ -1624,10 +1624,9 @@ static void enter_pmode(struct kvm_vcpu
>   static gva_t rmode_tss_base(struct kvm *kvm)
>   {
>   	if (!kvm->arch.tss_addr) {
> -		struct kvm_memslots *slots;
>   		gfn_t base_gfn;
>
> -		slots = kvm_memslots(kvm);
> +		kvm_memslots(kvm);
>   		base_gfn = kvm->memslots->memslots[0].base_gfn +
>   				 kvm->memslots->memslots[0].npages - 3;
>   		return base_gfn<<  PAGE_SHIFT;
>    

I think the base_gfn assignment below needs to use slots to get the rcu 
dereference correct.  I'll apply the patch without this hunk and fix it 
independently.


-- 
error compiling committee.c: too many arguments to function

--
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/