Hi Qais, [auto build test ERROR on tip/irq/core -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Qais-Yousef/Implement-generic-IPI-support-mechanism/20151103-192028 config: mips-jz4740 (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=mips All errors (new ones prefixed by >>): kernel/irq/irqdomain.c: In function 'irq_reserve_ipi': >> kernel/irq/irqdomain.c:890:9: error: implicit declaration of function '__irq_domain_alloc_irqs' [-Werror=implicit-function-declaration] virq = __irq_domain_alloc_irqs(domain, virq, nr_irqs, NUMA_NO_NODE, ^ kernel/irq/irqdomain.c: In function 'irq_destroy_ipi': >> kernel/irq/irqdomain.c:950:2: error: implicit declaration of function 'irq_domain_free_irqs' [-Werror=implicit-function-declaration] irq_domain_free_irqs(irq, nr_irqs); ^ cc1: some warnings being treated as errors vim +/__irq_domain_alloc_irqs +890 kernel/irq/irqdomain.c 884 virq = irq_domain_alloc_descs(-1, nr_irqs, 0, NUMA_NO_NODE); 885 if (virq <= 0) { 886 pr_warn("Can't reserve IPI, failed to alloc descs\n"); 887 return 0; 888 } 889 > 890 virq = __irq_domain_alloc_irqs(domain, virq, nr_irqs, NUMA_NO_NODE, 891 (void *) dest, true); 892 if (virq <= 0) { 893 pr_warn("Can't reserve IPI, failed to alloc irqs\n"); 894 goto free_descs; 895 } 896 897 for (i = virq; i < virq + nr_irqs; i++) { 898 data = irq_get_irq_data(i); 899 data->common->ipi_mask = ipi_mask_alloc(dest->nbits); 900 if (!data->common->ipi_mask) 901 goto free_ipi_mask; 902 ipi_mask_copy(data->common->ipi_mask, dest); 903 } 904 905 return virq; 906 907 free_ipi_mask: 908 for (i = virq; i < virq + nr_irqs; i++) { 909 data = irq_get_irq_data(i); 910 ipi_mask_free(data->common->ipi_mask); 911 } 912 free_descs: 913 irq_free_descs(virq, nr_irqs); 914 return 0; 915 } 916 917 /** 918 * irq_destroy_ipi() - unreserve an IPI that was previously allocated 919 * @irq: linux irq number to be destroyed 920 * 921 * Return the IPIs allocated with irq_reserve_ipi() to the system destroying all 922 * virqs associated with them. 923 */ 924 void irq_destroy_ipi(unsigned int irq) 925 { 926 struct irq_data *data = irq_get_irq_data(irq); 927 struct irq_domain *domain; 928 unsigned int nr_irqs, i; 929 930 if (!irq || !data) 931 return; 932 933 domain = data->domain; 934 if (WARN_ON(domain == NULL)) 935 return; 936 937 if (!irq_domain_is_ipi(domain)) { 938 pr_warn("Not an IPI domain!\n"); 939 return; 940 } 941 942 nr_irqs = ipi_mask_weight(data->common->ipi_mask); 943 ipi_mask_free(data->common->ipi_mask); 944 945 for (i = irq + 1; i < irq + nr_irqs; i++) { 946 data = irq_get_irq_data(i); 947 ipi_mask_free(data->common->ipi_mask); 948 } 949 > 950 irq_domain_free_irqs(irq, nr_irqs); 951 } 952 953 #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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