> -----Original Message-----
> From: Feifei Wang <[email protected]>
> Sent: Sunday, June 28, 2020 7:24 AM
> To: Honnappa Nagarahalli <[email protected]>; Ananyev, Konstantin 
> <[email protected]>
> Cc: [email protected]; [email protected]; Feifei Wang <[email protected]>; 
> [email protected]
> Subject: [PATCH] ring: fix error vlaue of tail in the peek API for ST mode
> 
> The value of *tail should be the prod->tail not prod->head. After
> modification, it can record 'tail' so head/tail can be updated
> accordingly.
> 
> Fixes: 664ff4b1729b ("ring: introduce peek style API")
> Cc: [email protected]
> 
> Signed-off-by: Feifei Wang <[email protected]>
> Reviewed-by: Ruifeng Wang <[email protected]>
> ---
>  lib/librte_ring/rte_ring_peek_c11_mem.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/librte_ring/rte_ring_peek_c11_mem.h 
> b/lib/librte_ring/rte_ring_peek_c11_mem.h
> index 99321f124..283c7e70b 100644
> --- a/lib/librte_ring/rte_ring_peek_c11_mem.h
> +++ b/lib/librte_ring/rte_ring_peek_c11_mem.h
> @@ -40,7 +40,7 @@ __rte_ring_st_get_tail(struct rte_ring_headtail *ht, 
> uint32_t *tail,
>       RTE_ASSERT(n >= num);
>       num = (n >= num) ? num : 0;
> 
> -     *tail = h;
> +     *tail = t;
>       return num;
>  }
> 
> --

Thanks for the fix.
Acked-by: Konstantin Ananyev <[email protected]>

> 2.17.1

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