> -----Original Message-----
> From: Feifei Wang <feifei.wa...@arm.com>
> Sent: Sunday, June 28, 2020 7:24 AM
> To: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>; Ananyev, Konstantin
> <konstantin.anan...@intel.com>
> Cc: dev@dpdk.org; n...@arm.com; Feifei Wang <feifei.wa...@arm.com>;
> sta...@dpdk.org
> 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: sta...@dpdk.org
>
> Signed-off-by: Feifei Wang <feifei.wa...@arm.com>
> Reviewed-by: Ruifeng Wang <ruifeng.w...@arm.com>
> ---
> 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 <konstantin.anan...@intel.com>
> 2.17.1
