tree: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git master head: f6d4c7133257bb2d6f66723d11b19f1c49cdf2f7 commit: 773fc8f6e8d63ec9d840588e161cbb73a01cfc45 [31/33] net: rps: send out pending IPI's on CPU hotplug config: blackfin-allyesconfig (attached as .config) compiler: bfin-uclinux-gcc (GCC) 6.2.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 773fc8f6e8d63ec9d840588e161cbb73a01cfc45 # save the attached .config to linux build tree make.cross ARCH=blackfin
All warnings (new ones prefixed by >>):
net//core/dev.c: In function 'dev_cpu_dead':
>> net//core/dev.c:8252:2: warning: 'remsd' is used uninitialized in this
>> function [-Wuninitialized]
net_rps_send_ipi(remsd);
^~~~~~~~~~~~~~~~~~~~~~~
vim +/remsd +8252 net//core/dev.c
8236
8237 list_del_init(&napi->poll_list);
8238 if (napi->poll == process_backlog)
8239 napi->state = 0;
8240 else
8241 ____napi_schedule(sd, napi);
8242 }
8243
8244 raise_softirq_irqoff(NET_TX_SOFTIRQ);
8245 local_irq_enable();
8246
8247 #ifdef CONFIG_RPS
8248 remsd = oldsd->rps_ipi_list;
8249 oldsd->rps_ipi_list = NULL;
8250 #endif
8251 /* send out pending IPI's on offline CPU */
> 8252 net_rps_send_ipi(remsd);
8253
8254 /* Process offline CPU's input_pkt_queue */
8255 while ((skb = __skb_dequeue(&oldsd->process_queue))) {
8256 netif_rx_ni(skb);
8257 input_queue_head_incr(oldsd);
8258 }
8259 while ((skb = skb_dequeue(&oldsd->input_pkt_queue))) {
8260 netif_rx_ni(skb);
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0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
