From nobody Sat Feb 7 13:59:20 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC747C4332F for ; Wed, 19 Oct 2022 13:59:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233810AbiJSN6x (ORCPT ); Wed, 19 Oct 2022 09:58:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234146AbiJSNzQ (ORCPT ); Wed, 19 Oct 2022 09:55:16 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E8A817C55F; Wed, 19 Oct 2022 06:37:55 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 38E79B82326; Wed, 19 Oct 2022 08:48:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87E87C433C1; Wed, 19 Oct 2022 08:48:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666169307; bh=gdVxvXTVsxzy2ljfw76jvEClmWnODYkAY5VxrKNgL8U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uV7GoQ5kkpRe81u7hX9qWdRRVxsyu+X5A9zKz6ugVCuVeYdhY9wBcrnBccA/wRBX3 DaspGzUd80ZhAmI9Rq4juO+6HMVzlVaCMUSEd+SKLMDlIxJIKnZLtgjiAz7tq043N8 s25gUYWhNz1TALSDVpLCew1sdplCnBy0dAlwA+so= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Florian Fainelli , Andrii Nakryiko , Jiri Olsa , Sasha Levin Subject: [PATCH 6.0 228/862] libbpf: Initialize err in probe_map_create Date: Wed, 19 Oct 2022 10:25:15 +0200 Message-Id: <20221019083300.143314598@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221019083249.951566199@linuxfoundation.org> References: <20221019083249.951566199@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Florian Fainelli [ Upstream commit 3045f42a64324d339125a8a1a1763bb9e1e08300 ] GCC-11 warns about the possibly unitialized err variable in probe_map_create: libbpf_probes.c: In function 'probe_map_create': libbpf_probes.c:361:38: error: 'err' may be used uninitialized in this func= tion [-Werror=3Dmaybe-uninitialized] 361 | return fd < 0 && err =3D=3D exp_err ? 1 : 0; | ~~~~^~~~~~~~~~ Fixes: 878d8def0603 ("libbpf: Rework feature-probing APIs") Signed-off-by: Florian Fainelli Signed-off-by: Andrii Nakryiko Acked-by: Jiri Olsa Link: https://lore.kernel.org/bpf/20220801025109.1206633-1-f.fainelli@gmail= .com Signed-off-by: Sasha Levin --- tools/lib/bpf/libbpf_probes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c index 0b5398786bf3..6d495656f554 100644 --- a/tools/lib/bpf/libbpf_probes.c +++ b/tools/lib/bpf/libbpf_probes.c @@ -193,7 +193,7 @@ static int probe_map_create(enum bpf_map_type map_type) LIBBPF_OPTS(bpf_map_create_opts, opts); int key_size, value_size, max_entries; __u32 btf_key_type_id =3D 0, btf_value_type_id =3D 0; - int fd =3D -1, btf_fd =3D -1, fd_inner =3D -1, exp_err =3D 0, err; + int fd =3D -1, btf_fd =3D -1, fd_inner =3D -1, exp_err =3D 0, err =3D 0; =20 key_size =3D sizeof(__u32); value_size =3D sizeof(__u32); --=20 2.35.1