[PATCH] vdpa: update used->flags in used ring relay

[Maxime Coquelin]

On 9/19/24 12:37, Maxime Coquelin wrote:
> 
> 
> On 7/17/24 05:24, BillXiang wrote:
>> From: BillXiang <xiangwencheng at dayudpu.com>
>>
>> The vDPA device will work incorrectly if flags such as
>> VRING_USED_F_NO_NOTIFY are not updated correctly.
>>
>> Signed-off-by: BillXiang <xiangwencheng at dayudpu.com>
>> ---
>>   lib/vhost/vdpa.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/lib/vhost/vdpa.c b/lib/vhost/vdpa.c
>> index a1dd5a753b..8abb073675 100644
>> --- a/lib/vhost/vdpa.c
>> +++ b/lib/vhost/vdpa.c
>> @@ -174,6 +174,7 @@ rte_vdpa_relay_vring_used(int vid, uint16_t qid, 
>> void *vring_m)
>>       idx = vq->used->idx;
>>       idx_m = s_vring->used->idx;
>>       ret = (uint16_t)(idx_m - idx);
>> +    vq->used->flags = s_vring->used->flags;
>>       while (idx != idx_m) {
>>           /* copy used entry, used ring logging is not covered here */
> 
> Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>

I fix the title from used->flags to used flags.
And also add Fixes tag and Cc stable so that it is backported.


> Thanks,
> Maxime