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SubjectRe: [RFC PATCH net-next 1/6] net/smc: support smc release version negotiation in clc handshake
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Hi Simon,

Thanks for the review.

Before this patch set, the ini pointer is NULL when sending accept clc msg. This patch set
has changed the ini pointer to non-NULL value both when sending accept clc msg and when
sending confirm clc msg. And the ini pointer in smc_clc_send_confirm_accept will not be NULL
any more.

I will remove the ini NULL check in the next version.
if (ini && clc->hdr.type == SMC_CLC_CONFIRM) => if (clc->hdr.type == SMC_CLC_CONFIRM)

Thanks,
Guangguan Wang

On 2023/8/4 01:42, Simon Horman wrote:
> On Thu, Aug 03, 2023 at 09:24:17PM +0800, Guangguan Wang wrote:
>
> ...
>
> Hi Guangguan Wang,
>
>> @@ -1063,7 +1063,7 @@ static int smc_clc_send_confirm_accept(struct smc_sock *smc,
>> memcpy(clc_v2->r1.eid, eid, SMC_MAX_EID_LEN);
>> len = SMCR_CLC_ACCEPT_CONFIRM_LEN_V2;
>> if (first_contact) {
>> - smc_clc_fill_fce(&fce, &len);
>> + smc_clc_fill_fce(&fce, &len, ini->release_ver);
>
> Here ini is dereferenced...
>
>
>> fce.v2_direct = !link->lgr->uses_gateway;
>> memset(&gle, 0, sizeof(gle));
>> if (ini && clc->hdr.type == SMC_CLC_CONFIRM) {
>
> ... but here it is assumed that ini may be NULL.
>
> This seems inconsistent.
>
> As flagged by Smatch.
>
> ...
>

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