From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id CC500A0597; Fri, 17 Apr 2020 21:04:08 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 5CED01EA0E; Fri, 17 Apr 2020 21:04:08 +0200 (CEST) Received: from inbox.dpdk.org (xvm-172-178.dc0.ghst.net [95.142.172.178]) by dpdk.org (Postfix) with ESMTP id A4B341E9FE for ; Fri, 17 Apr 2020 21:04:07 +0200 (CEST) Received: by inbox.dpdk.org (Postfix, from userid 33) id 6CAC9A0598; Fri, 17 Apr 2020 21:04:07 +0200 (CEST) From: bugzilla@dpdk.org To: dev@dpdk.org Date: Fri, 17 Apr 2020 19:04:06 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: core X-Bugzilla-Version: 20.05 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: kevuzaj@gmail.com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 Subject: [dpdk-dev] [Bug 452] cuckoo hash gcc10 warning X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" https://bugs.dpdk.org/show_bug.cgi?id=3D452 Bug ID: 452 Summary: cuckoo hash gcc10 warning Product: DPDK Version: 20.05 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: Normal Component: core Assignee: dev@dpdk.org Reporter: kevuzaj@gmail.com Target Milestone: --- [1/83] Compiling C object 'lib/76b5a35@@rte_hash@sta/librte_hash_rte_cuckoo_hash.c.o' ../lib/librte_hash/rte_cuckoo_hash.c: In function =E2=80=98__rte_hash_add_key_with_hash=E2=80=99: ../lib/librte_hash/rte_cuckoo_hash.c:1104:29: warning: =E2=80=98ext_bkt_id= =E2=80=99 may be used uninitialized in this function [-Wmaybe-uninitialized] 1104 | (h->buckets_ext[ext_bkt_id - 1]).sig_current[0] =3D short_sig; | ~~~~~~~~~~~^~~ Relevant code: if (rte_ring_sc_dequeue_elem(h->free_ext_bkts, &ext_bkt_id, sizeof(uint32_t)) !=3D 0) { ret =3D -ENOSPC; goto failure; } /* Use the first location of the new bucket */ (h->buckets_ext[ext_bkt_id - 1]).sig_current[0] =3D short_sig; -- I'm not seeing the path that where rte_ring_sc_dequeue_elem() return !=3D0 = and ext_bkt_id has not been initialized but gcc10 seems to think there is one. Initializing ext_bkt_id =3D 1 earlier in the function would fix this. --=20 You are receiving this mail because: You are the assignee for the bug.=