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Tue, 19 May 2020 01:42:26 +0000 Subject: Re: [PATCH bpf-next] selftest/bpf: make bpf_iter selftest compilable against old vmlinux.h To: Andrii Nakryiko , , , , CC: , , Jesper Dangaard Brouer References: <20200518234516.3915052-1-andriin@fb.com> From: Yonghong Song Message-ID: <6633a04c-aab4-5182-2bed-28b235436932@fb.com> Date: Mon, 18 May 2020 18:42:24 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 In-Reply-To: <20200518234516.3915052-1-andriin@fb.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-ClientProxiedBy: BYAPR06CA0003.namprd06.prod.outlook.com (2603:10b6:a03:d4::16) To BYAPR15MB4088.namprd15.prod.outlook.com (2603:10b6:a02:c3::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from macbook-pro-52.local.dhcp.thefacebook.com (2620:10d:c090:400::5:f205) by BYAPR06CA0003.namprd06.prod.outlook.com (2603:10b6:a03:d4::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.20 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-MS-Exchange-CrossTenant-Network-Message-Id: b80b7abf-9944-4bc0-14aa-08d7fb95e282 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 May 2020 01:42:26.6468 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: qyQgDrTLN8RoRu7zaId90w5Xk4ASut56hgB3CXgSHAy4XLP0obX0lPFcyVl0vgA6 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB3192 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.676 definitions=2020-05-18_11:2020-05-15,2020-05-18 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 mlxscore=0 phishscore=0 malwarescore=0 clxscore=1015 impostorscore=0 spamscore=0 mlxlogscore=912 lowpriorityscore=0 suspectscore=0 bulkscore=0 priorityscore=1501 cotscore=-2147483648 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005190013 X-FB-Internal: deliver Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On 5/18/20 4:45 PM, Andrii Nakryiko wrote: > It's good to be able to compile bpf_iter selftest even on systems that don't > have the very latest vmlinux.h, e.g., for libbpf tests against older kernels in > Travis CI. To that extent, re-define bpf_iter_meta and corresponding bpf_iter > context structs in each selftest. To avoid type clashes with vmlinux.h, rename > vmlinux.h's definitions to get them out of the way. > > Cc: Jesper Dangaard Brouer > Cc: Yonghong Song > Signed-off-by: Andrii Nakryiko Acked-by: Yonghong Song