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From: Paolo Bonzini <pbonzini@redhat.com>
To: Christophe Leroy <christophe.leroy@csgroup.eu>,
	Sean Christopherson <seanjc@google.com>,
	Brijesh Singh <brijesh.singh@amd.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	John Allen <john.allen@amd.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	kvm@vger.kernel.org, linux-crypto@vger.kernel.org,
	linux-kernel@vger.kernel.org, Borislav Petkov <bp@suse.de>
Subject: Re: [PATCH v2 7/8] crypto: ccp: Use the stack and common buffer for INIT command
Date: Sat, 17 Apr 2021 14:42:48 +0200	[thread overview]
Message-ID: <a75c54d5-d4af-5d67-ef35-025d3e4a3f51@redhat.com> (raw)
In-Reply-To: <29bd7f5d-ebee-b78e-8ba6-fd8e21ec1dc8@csgroup.eu>

On 07/04/21 07:20, Christophe Leroy wrote:
>>
>> +    struct sev_data_init data;
> 
> struct sev_data_init data = {0, 0, 0, 0};

Having to count the number of items is suboptimal.  The alternative 
could be {} (which however is technically not standard C), {0} (a bit 
mysterious, but it works) and memset.  I kept the latter to avoid 
touching the submitter's patch too much.

Paolo


  reply	other threads:[~2021-04-17 12:42 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-06 22:49 [PATCH v2 0/8] ccp: KVM: SVM: Use stack for SEV command buffers Sean Christopherson
2021-04-06 22:49 ` [PATCH v2 1/8] crypto: ccp: Free SEV device if SEV init fails Sean Christopherson
2021-04-06 22:49 ` [PATCH v2 2/8] crypto: ccp: Detect and reject "invalid" addresses destined for PSP Sean Christopherson
2021-04-06 22:49 ` [PATCH v2 3/8] crypto: ccp: Reject SEV commands with mismatching command buffer Sean Christopherson
2021-04-06 22:49 ` [PATCH v2 4/8] crypto: ccp: Play nice with vmalloc'd memory for SEV command structs Sean Christopherson
2021-04-06 22:49 ` [PATCH v2 5/8] crypto: ccp: Use the stack for small SEV command buffers Sean Christopherson
2021-04-07  5:18   ` Christophe Leroy
2021-04-17 12:40   ` Paolo Bonzini
2021-04-06 22:49 ` [PATCH v2 6/8] crypto: ccp: Use the stack and common buffer for status commands Sean Christopherson
2021-04-06 22:49 ` [PATCH v2 7/8] crypto: ccp: Use the stack and common buffer for INIT command Sean Christopherson
2021-04-07  5:20   ` Christophe Leroy
2021-04-17 12:42     ` Paolo Bonzini [this message]
2021-04-06 22:49 ` [PATCH v2 8/8] KVM: SVM: Allocate SEV command structures on local stack Sean Christopherson
2021-04-07  5:24   ` Christophe Leroy
2021-04-07 10:24     ` Borislav Petkov
2021-04-07 17:05       ` Sean Christopherson
2021-04-07 17:06         ` Christophe Leroy
2021-04-07 17:34         ` Borislav Petkov
2021-04-17 12:45           ` Paolo Bonzini
2021-04-07 17:16 ` [PATCH v2 0/8] ccp: KVM: SVM: Use stack for SEV command buffers Brijesh Singh
2021-04-07 18:00 ` Tom Lendacky
2021-04-15 16:09   ` Paolo Bonzini
2021-04-15 18:15     ` Tom Lendacky
2021-04-16  0:28       ` Herbert Xu
2021-04-17 12:47 ` Paolo Bonzini

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