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X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 70e1fb47-1155-421d-87fc-2e58f638b6e0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: kAH6XZhy2RruYkhInnoarwlbk3oFcMzZSPlx3xMb7qaSs7t2xXI+yOL88QlnL2trIEDZKwryUIJq28PPPD/RkA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR18MB5408 X-Proofpoint-GUID: keKIoQl_wYoNRlVjR0y24gJCha3lKbXn X-Proofpoint-ORIG-GUID: keKIoQl_wYoNRlVjR0y24gJCha3lKbXn X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org > -----Original Message----- > From: Qian Hao > Sent: Friday, December 8, 2023 1:43 PM > To: dev@dpdk.org > Cc: Volodymyr Fialko > Subject: [EXT] [PATCH] examples/packet_ordering: fix segfault in disable_= reorder mode Good catch overall, but few comments: 1. Please fix checkpatch coding style issues: http://patchwork.dpdk.org/project/dpdk/patch/20231208124231.198138-1-qi_an_= hao@126.com/ Check dpdk contributing guide to see how to run it locally: https://doc.dpdk.org/guides/contributing/patches.html#checking-the-patches 2. This patch will add if check per burst of packets (even so it will be ea= sy to branch predict for CPU since this flag does not changes), I still think it = would be better to check this condition only once before starting the rx_thread a= nd let compiler inline the rest. So something like this: // mark rx_thread inline with explicit parameter static __rte_always_inline int rx_thread(struct rte_ring *ring_out, bool disable_reorder) // create two separate functions with baked flag static __rte_noinline int rx_thread_reorder(struct rte_ring *ring_out) { return rx_thread(ring_out, false); } static __rte_noinline int rx_thread_reorder_disabled(struct rte_ring *ring_out) { return rx_thread(ring_out, true); } // dispatch only once in main /* Start rx_thread() on the main core */ if (disable_reorder) rx_thread_reorder_disabled(rx_to_workers); else rx_thread_reorder(rx_to_workers); /Volodymyr