[PATCH v2 1/2] fib: implement RCU rule reclamation

[Doug Foster]

The check for NULL is not necessary before calling rte_rcu_qsbr_dq_delete. Similar to other free routines, an error will not occur when the dq pointer is NULL.
However, it will give a debug log statement to indicate an invalid parameter and return 0 to indicate success.

-----Original Message-----
From: Stephen Hemminger <stephen at networkplumber.org>
Sent: Tuesday, October 8, 2024 1:18 PM
To: Vladimir Medvedkin <vladimir.medvedkin at intel.com>
Cc: dev at dpdk.org; rjarry at redhat.com; Ruifeng Wang <Ruifeng.Wang at arm.com>; Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com>; david.marchand at redhat.com
Subject: Re: [PATCH v2 1/2] fib: implement RCU rule reclamation

On Tue,  8 Oct 2024 17:55:23 +0000
Vladimir Medvedkin <vladimir.medvedkin at intel.com> wrote:

> @@ -569,7 +600,60 @@ dir24_8_free(void *p)  {
>       struct dir24_8_tbl *dp = (struct dir24_8_tbl *)p;
>
> +     if (dp->dq != NULL)
> +             rte_rcu_qsbr_dq_delete(dp->dq);
> +

Side note:
rte_rcu_qsbr_dq_delete should be changed to accept NULL as nop.
Like all the other free routines
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