Can you fix this up and resend? On Tue, Mar 06, 2018 at 12:28:32AM +0800, kbuild test robot wrote: > Hi Ming, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on tip/irq/core] > [also build test WARNING on v4.16-rc4 next-20180305] > [if your patch is applied to the wrong git tree, please drop us a note to > help improve the system] > > url: > https://github.com/0day-ci/linux/commits/Ming-Lei/genirq-affinity-irq-vector-spread-among-online-CPUs-as-far-as-possible/20180305-184912 > config: i386-randconfig-a1-201809 (attached as .config) > compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 > reproduce: > # save the attached .config to linux build tree > make ARCH=i386 > > All warnings (new ones prefixed by >>): > > kernel/irq/affinity.c: In function 'irq_create_affinity_masks': > >> kernel/irq/affinity.c:201:50: warning: passing argument 3 of > >> 'irq_build_affinity_masks' from incompatible pointer type > curvec += irq_build_affinity_masks(nvecs, affd, node_to_cpumask, > ^ > kernel/irq/affinity.c:97:12: note: expected 'const struct cpumask (*)[1]' > but argument is of type 'struct cpumask (*)[1]' > static int irq_build_affinity_masks(int nvecs, const struct irq_affinity > *affd, > ^ > > vim +/irq_build_affinity_masks +201 kernel/irq/affinity.c > > 161 > 162 /** > 163 * irq_create_affinity_masks - Create affinity masks for > multiqueue spreading > 164 * @nvecs: The total number of vectors > 165 * @affd: Description of the affinity requirements > 166 * > 167 * Returns the masks pointer or NULL if allocation failed. > 168 */ > 169 struct cpumask * > 170 irq_create_affinity_masks(int nvecs, const struct irq_affinity > *affd) > 171 { > 172 int curvec; > 173 struct cpumask *masks; > 174 cpumask_var_t nmsk, *node_to_cpumask; > 175 > 176 /* > 177 * If there aren't any vectors left after applying the > pre/post > 178 * vectors don't bother with assigning affinity. > 179 */ > 180 if (nvecs == affd->pre_vectors + affd->post_vectors) > 181 return NULL; > 182 > 183 if (!zalloc_cpumask_var(&nmsk, GFP_KERNEL)) > 184 return NULL; > 185 > 186 masks = kcalloc(nvecs, sizeof(*masks), GFP_KERNEL); > 187 if (!masks) > 188 goto out; > 189 > 190 node_to_cpumask = alloc_node_to_cpumask(); > 191 if (!node_to_cpumask) > 192 goto out; > 193 > 194 /* Fill out vectors at the beginning that don't need > affinity */ > 195 for (curvec = 0; curvec < affd->pre_vectors; curvec++) > 196 cpumask_copy(masks + curvec, > irq_default_affinity); > 197 > 198 /* Stabilize the cpumasks */ > 199 get_online_cpus(); > 200 build_node_to_cpumask(node_to_cpumask); > > 201 curvec += irq_build_affinity_masks(nvecs, affd, > node_to_cpumask, > 202 cpu_possible_mask, > nmsk, masks); > 203 put_online_cpus(); > 204 > 205 /* Fill out vectors at the end that don't need affinity > */ > 206 for (; curvec < nvecs; curvec++) > 207 cpumask_copy(masks + curvec, > irq_default_affinity); > 208 free_node_to_cpumask(node_to_cpumask); > 209 out: > 210 free_cpumask_var(nmsk); > 211 return masks; > 212 } > 213 > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation
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