From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Cornelia Huck <cohuck@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Janosch Frank <frankja@linux.ibm.com>,
kvm@vger.kernel.org, James Hogan <jhogan@kernel.org>,
Joerg Roedel <joro@8bytes.org>,
David Hildenbrand <david@redhat.com>,
linux-mips@vger.kernel.org, kvm-ppc@vger.kernel.org,
linux-kernel@vger.kernel.org, Paul Mackerras <paulus@ozlabs.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
linux-arm-kernel@lists.infradead.org,
Marc Zyngier <maz@kernel.org>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
kvmarm@lists.cs.columbia.edu, Jim Mattson <jmattson@google.com>
Subject: Re: [PATCH v2 15/15] KVM: Dynamically size memslot array based on number of used slots
Date: Tue, 22 Oct 2019 08:22:24 -0700 [thread overview]
Message-ID: <20191022152223.GB2343@linux.intel.com> (raw)
In-Reply-To: <2609aedc-4fc9-ab92-8877-55c64cf19165@redhat.com>
On Tue, Oct 22, 2019 at 04:04:21PM +0200, Paolo Bonzini wrote:
> On 22/10/19 02:35, Sean Christopherson wrote:
> > + struct kvm_memory_slot memslots[];
> > + /*
> > + * WARNING: 'memslots' is dynamically-sized. It *MUST* be at the end.
> > + */
>
> Isn't that obvious from the flexible array member?
Probably. It's also unnecessary as the compiler (at least as of gcc 5.4)
will throw an error if it's not at the end. I think I even verified this
during development and still decided to leave the obnoxious warning in for
some reason...
include/linux/kvm_host.h:436:25: error: flexible array member not at end of struct
struct kvm_memory_slot memslots[];
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next prev parent reply other threads:[~2019-10-22 15:22 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-22 0:35 [PATCH v2 00/15] KVM: Dynamically size memslot arrays Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 01/15] KVM: Reinstall old memslots if arch preparation fails Sean Christopherson
2019-10-23 9:29 ` Christoffer Dall
2019-10-22 0:35 ` [PATCH v2 02/15] KVM: Don't free new memslot if allocation of said memslot fails Sean Christopherson
2019-10-23 9:29 ` Christoffer Dall
2019-10-22 0:35 ` [PATCH v2 03/15] KVM: PPC: Move memslot memory allocation into prepare_memory_region() Sean Christopherson
2019-10-24 11:55 ` kbuild test robot
2019-10-22 0:35 ` [PATCH v2 04/15] KVM: x86: Allocate memslot resources during prepare_memory_region() Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 05/15] KVM: Drop kvm_arch_create_memslot() Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 06/15] KVM: Explicitly free allocated-but-unused dirty bitmap Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 07/15] KVM: Refactor error handling for setting memory region Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 08/15] KVM: Move setting of memslot into helper routine Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 09/15] KVM: Move memslot deletion to helper function Sean Christopherson
2019-10-23 9:29 ` Christoffer Dall
2019-10-22 0:35 ` [PATCH v2 10/15] KVM: Simplify kvm_free_memslot() and all its descendents Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 11/15] KVM: Clean up local variable usage in __kvm_set_memory_region() Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 12/15] KVM: Provide common implementation for generic dirty log functions Sean Christopherson
2019-10-23 9:29 ` Christoffer Dall
2019-10-24 10:28 ` kbuild test robot
2019-10-22 0:35 ` [PATCH v2 13/15] KVM: Ensure validity of memslot with respect to kvm_get_dirty_log() Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 14/15] KVM: Terminate memslot walks via used_slots Sean Christopherson
2019-10-22 14:04 ` Paolo Bonzini
2019-10-22 15:28 ` Sean Christopherson
2019-10-22 15:30 ` Paolo Bonzini
2019-10-22 15:52 ` Sean Christopherson
2019-10-22 15:53 ` Paolo Bonzini
2019-10-24 19:38 ` Sean Christopherson
2019-10-24 19:42 ` Sean Christopherson
2019-10-24 20:24 ` Paolo Bonzini
2019-10-24 20:48 ` Sean Christopherson
2019-10-22 0:35 ` [PATCH v2 15/15] KVM: Dynamically size memslot array based on number of used slots Sean Christopherson
2019-10-22 14:04 ` Paolo Bonzini
2019-10-22 15:22 ` Sean Christopherson [this message]
2019-10-22 13:59 ` [PATCH v2 00/15] KVM: Dynamically size memslot arrays Paolo Bonzini
2019-10-23 18:56 ` Christian Borntraeger
2019-10-22 14:04 ` Paolo Bonzini
2019-10-23 9:39 ` Christoffer Dall
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