From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 82242606A31B for ; Tue, 3 Nov 2026 17:30:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=PkWoVKbZ Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 97EB540265; Tue, 3 Nov 2026 18:30:49 +0100 (CET) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) by mails.dpdk.org (Postfix) with ESMTPS id ED89E400D6; Tue, 3 Nov 2026 18:30:46 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1793727048; x=1825263048; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=RGCMmoZEsQqtWn/vfLZmay9Bjk81qBIYwOilztuh30w=; b=PkWoVKbZkGfStiHF/T1glMGzXIcmYOhtrXCBRSA0J0AVRkiyD3pGunt2 1dup61/kldMyngMPxmzhgG4ApkYtP2keVw963XyRCn0SVoZKVkurnkS+/ 92WWMxWd5mRp+mYID8IonCQGWFmBgsi2g05qPptmQaI7uv1SOTBvi0Ixr Oske+RUUfeD/TOQF/U5T8wRbuWhvT148cwjr7/0rpNBWlhMyqDtu/pedW 3ubLlyfwQyvwGR7jPnGCozxio8egMzSSiGvZLhPI4DwXmFlwCX8gqEJ0H vKnMF41YUJj3I8Q6FMGIsRDibo/4t1ASJiDDKsnuKMRhFXnLsU/QegBLI A==; X-CSE-ConnectionGUID: 9A/wvhv8QySETiURe6SnKQ== X-CSE-MsgGUID: aU17HVVBQPGiO87GJdd81w== X-IronPort-AV: E=McAfee;i="6800,10657,11955"; a="2553274" X-IronPort-AV: E=Sophos;i="6.27,193,1787036400"; d="scan'208";a="2553274" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2026 09:28:58 -0800 X-CSE-ConnectionGUID: uHDq/uNIQM+wURhdFQ694w== X-CSE-MsgGUID: u6QSUX67SEmR77hDdQ+0ag== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,193,1787036400"; d="scan'208";a="6495702" Received: from unknown (HELO an4-swa15-spr.example.org) ([10.241.130.94]) by fmviesa004.fm.intel.com with ESMTP; 03 Nov 2026 09:28:57 -0800 From: Hernan Vargas 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 , stable@dpdk.org Subject: [PATCH v1 2/5] baseband/acc: fix queue depth computation error Date: Tue, 3 Nov 2026 09:28:59 -0800 Message-Id: <20261103172902.4152956-3-hernan.vargas@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261103172902.4152956-1-hernan.vargas@intel.com> References: <20261103172902.4152956-1-hernan.vargas@intel.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Archive: List-Post: List-Help: List-Subscribe: , X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 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 --- 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