From: Hernan Vargas <hernan.vargas@intel.com>
To: dev@dpdk.org, gakhil@marvell.com, trix@redhat.com,
maxime.coquelin@redhat.com
Cc: nicolas.chautru@intel.com, qi.z.zhang@intel.com,
Hernan Vargas <hernan.vargas@intel.com>,
stable@dpdk.org
Subject: [PATCH v1 2/5] baseband/acc: fix queue depth computation error
Date: Tue, 3 Nov 2026 09:28:59 -0800 [thread overview]
Message-ID: <20261103172902.4152956-3-hernan.vargas@intel.com> (raw)
In-Reply-To: <20261103172902.4152956-1-hernan.vargas@intel.com>
Fix to the computation of available dequeue size.
Protects notably for possible negative scenarios when dequeuing
descriptors.
Fixes: e640f6cdfa84 ("baseband/acc200: add LDPC processing")
Cc: stable@dpdk.org
Signed-off-by: Hernan Vargas <hernan.vargas@intel.com>
---
drivers/baseband/acc/acc_common.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/baseband/acc/acc_common.h b/drivers/baseband/acc/acc_common.h
index 3d411cd25f..255e0971b8 100644
--- a/drivers/baseband/acc/acc_common.h
+++ b/drivers/baseband/acc/acc_common.h
@@ -1602,7 +1602,7 @@ acc_ring_avail_enq(struct acc_queue *q)
static inline uint32_t
acc_ring_avail_deq(struct acc_queue *q)
{
- return (q->sw_ring_depth + q->sw_ring_head - q->sw_ring_tail) & q->sw_ring_wrap_mask;
+ return (q->sw_ring_head - q->sw_ring_tail) & q->sw_ring_wrap_mask;
}
/* Check room in AQ for the enqueues batches into Qmgr */
--
2.34.1
next prev parent reply other threads:[~2026-11-03 17:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-03 17:28 [PATCH v1 0/5] bbdev, baseband/acc: bug fixes Hernan Vargas
2026-11-03 17:28 ` [PATCH v1 1/5] bbdev: fix status error for ops dump Hernan Vargas
2026-11-03 17:28 ` Hernan Vargas [this message]
2026-11-03 17:29 ` [PATCH v1 3/5] baseband/acc: fix PF2VF Bug for FFT window probing Hernan Vargas
2026-11-03 17:29 ` [PATCH v1 4/5] baseband/acc: fix ring interrupt handler err path Hernan Vargas
2026-11-03 17:29 ` [PATCH v1 5/5] baseband/acc: fix bug when alternating TB mode Hernan Vargas
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