CC: [email protected] CC: [email protected] In-Reply-To: <[email protected]> References: <[email protected]> TO: Ming Lei <[email protected]> TO: Thomas Gleixner <[email protected]> TO: Jens Axboe <[email protected]> CC: [email protected] CC: [email protected] CC: Christoph Hellwig <[email protected]> CC: Ming Lei <[email protected]>
Hi Ming, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tip/irq/core] [also build test WARNING on next-20210813] [cannot apply to block/for-next linux/master linus/master v5.14-rc5] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Ming-Lei/genirq-affinity-abstract-new-API-from-managed-irq-affinity-spread/20210814-203741 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 04c2721d3530f0723b4c922a8fa9f26b202a20de :::::: branch date: 13 hours ago :::::: commit date: 13 hours ago config: x86_64-randconfig-c001-20210814 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 1f7b25ea76a925aca690da28de9d78db7ca99d0c) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/759f72186bfdd5c3ba8b53ac0749cf7ba930012c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ming-Lei/genirq-affinity-abstract-new-API-from-managed-irq-affinity-spread/20210814-203741 git checkout 759f72186bfdd5c3ba8b53ac0749cf7ba930012c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. Suppressed 7 warnings (6 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. lib/glob.c:48:32: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] char const *back_pat = NULL, *back_str = back_str; ^ ~~~~~~~~ lib/glob.c:48:32: note: Assigned value is garbage or undefined char const *back_pat = NULL, *back_str = back_str; ^ ~~~~~~~~ Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. lib/strnlen_user.c:34:2: warning: Value stored to 'src' is never read [clang-analyzer-deadcode.DeadStores] src -= align; ^ ~~~~~ lib/strnlen_user.c:34:2: note: Value stored to 'src' is never read src -= align; ^ ~~~~~ Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. Suppressed 7 warnings (7 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. Suppressed 7 warnings (7 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. lib/oid_registry.c:149:3: warning: Value stored to 'num' is never read [clang-analyzer-deadcode.DeadStores] num = 0; ^ ~ lib/oid_registry.c:149:3: note: Value stored to 'num' is never read num = 0; ^ ~ Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (2 in non-user code, 7 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. >> lib/group_cpus.c:236:22: warning: Division by zero >> [clang-analyzer-core.DivideZero] numgrps * ncpus / remaining_ncpus); ^ lib/group_cpus.c:352:2: note: Taking false branch if (!zalloc_cpumask_var(&nmsk, GFP_KERNEL)) ^ lib/group_cpus.c:355:2: note: Taking false branch if (!zalloc_cpumask_var(&npresmsk, GFP_KERNEL)) ^ lib/group_cpus.c:359:7: note: 'node_to_cpumask' is non-null if (!node_to_cpumask) ^~~~~~~~~~~~~~~ lib/group_cpus.c:359:2: note: Taking false branch if (!node_to_cpumask) ^ lib/group_cpus.c:363:6: note: Assuming 'masks' is non-null if (!masks) ^~~~~~ lib/group_cpus.c:363:2: note: Taking false branch if (!masks) ^ lib/group_cpus.c:371:8: note: Calling '__group_cpus_evenly' ret = __group_cpus_evenly(curgrp, numgrps, node_to_cpumask, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/group_cpus.c:257:6: note: Assuming the condition is false if (!cpumask_weight(cpu_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~ lib/group_cpus.c:257:2: note: Taking false branch if (!cpumask_weight(cpu_mask)) ^ lib/group_cpus.c:266:6: note: Assuming 'numgrps' is > 'nodes' if (numgrps <= nodes) { ^~~~~~~~~~~~~~~~ lib/group_cpus.c:266:2: note: Taking false branch if (numgrps <= nodes) { ^ lib/group_cpus.c:279:6: note: Assuming 'node_groups' is non-null if (!node_groups) ^~~~~~~~~~~~ lib/group_cpus.c:279:2: note: Taking false branch if (!node_groups) ^ lib/group_cpus.c:283:2: note: Calling 'alloc_nodes_groups' alloc_nodes_groups(numgrps, node_to_cpumask, cpu_mask, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/group_cpus.c:134:14: note: 'remaining_ncpus' initialized to 0 unsigned n, remaining_ncpus = 0; ^~~~~~~~~~~~~~~ lib/group_cpus.c:136:2: note: Loop condition is true. Entering loop body for (n = 0; n < nr_node_ids; n++) { ^ lib/group_cpus.c:136:2: note: Loop condition is false. Execution continues on line 141 lib/group_cpus.c:141:2: note: Taking false branch for_each_node_mask(n, nodemsk) { ^ include/linux/nodemask.h:384:2: note: expanded from macro 'for_each_node_mask' if (!nodes_empty(mask)) \ ^ lib/group_cpus.c:153:12: note: '__UNIQUE_ID___x401' is < '__UNIQUE_ID___y402' numgrps = min_t(unsigned, remaining_ncpus, numgrps); ^ include/linux/minmax.h:104:27: note: expanded from macro 'min_t' #define min_t(type, x, y) __careful_cmp((type)(x), (type)(y), <) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:38:3: note: expanded from macro '__careful_cmp' __cmp_once(x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y), op)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:33:3: note: expanded from macro '__cmp_once' __cmp(unique_x, unique_y, op); }) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:28:26: note: expanded from macro '__cmp' #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) ^~~ lib/group_cpus.c:153:12: note: '?' condition is true numgrps = min_t(unsigned, remaining_ncpus, numgrps); ^ include/linux/minmax.h:104:27: note: expanded from macro 'min_t' #define min_t(type, x, y) __careful_cmp((type)(x), (type)(y), <) ^ include/linux/minmax.h:38:3: note: expanded from macro '__careful_cmp' __cmp_once(x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y), op)) ^ include/linux/minmax.h:33:3: note: expanded from macro '__cmp_once' __cmp(unique_x, unique_y, op); }) ^ include/linux/minmax.h:28:26: note: expanded from macro '__cmp' #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) ^ lib/group_cpus.c:226:2: note: Loop condition is true. Entering loop body for (n = 0; n < nr_node_ids; n++) { ^ lib/group_cpus.c:229:7: note: Assuming the condition is false if (node_groups[n].ncpus == UINT_MAX) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/group_cpus.c:229:3: note: Taking false branch if (node_groups[n].ncpus == UINT_MAX) ^ lib/group_cpus.c:232:3: note: Taking true branch WARN_ON_ONCE(numgrps == 0); ^ include/asm-generic/bug.h:105:2: note: expanded from macro 'WARN_ON_ONCE' vim +236 lib/group_cpus.c 759f72186bfdd5 Ming Lei 2021-08-14 113 759f72186bfdd5 Ming Lei 2021-08-14 114 /* 759f72186bfdd5 Ming Lei 2021-08-14 115 * Allocate group number for each node, so that for each node: 759f72186bfdd5 Ming Lei 2021-08-14 116 * 759f72186bfdd5 Ming Lei 2021-08-14 117 * 1) the allocated number is >= 1 759f72186bfdd5 Ming Lei 2021-08-14 118 * 759f72186bfdd5 Ming Lei 2021-08-14 119 * 2) the allocated number is <= active CPU number of this node 759f72186bfdd5 Ming Lei 2021-08-14 120 * 759f72186bfdd5 Ming Lei 2021-08-14 121 * The actual allocated total groups may be less than @numgrps when 759f72186bfdd5 Ming Lei 2021-08-14 122 * active total CPU number is less than @numgrps. 759f72186bfdd5 Ming Lei 2021-08-14 123 * 759f72186bfdd5 Ming Lei 2021-08-14 124 * Active CPUs means the CPUs in '@cpu_mask AND @node_to_cpumask[]' 759f72186bfdd5 Ming Lei 2021-08-14 125 * for each node. 759f72186bfdd5 Ming Lei 2021-08-14 126 */ 759f72186bfdd5 Ming Lei 2021-08-14 127 static void alloc_nodes_groups(unsigned int numgrps, 759f72186bfdd5 Ming Lei 2021-08-14 128 cpumask_var_t *node_to_cpumask, 759f72186bfdd5 Ming Lei 2021-08-14 129 const struct cpumask *cpu_mask, 759f72186bfdd5 Ming Lei 2021-08-14 130 const nodemask_t nodemsk, 759f72186bfdd5 Ming Lei 2021-08-14 131 struct cpumask *nmsk, 759f72186bfdd5 Ming Lei 2021-08-14 132 struct node_groups *node_groups) 759f72186bfdd5 Ming Lei 2021-08-14 133 { 759f72186bfdd5 Ming Lei 2021-08-14 134 unsigned n, remaining_ncpus = 0; 759f72186bfdd5 Ming Lei 2021-08-14 135 759f72186bfdd5 Ming Lei 2021-08-14 136 for (n = 0; n < nr_node_ids; n++) { 759f72186bfdd5 Ming Lei 2021-08-14 137 node_groups[n].id = n; 759f72186bfdd5 Ming Lei 2021-08-14 138 node_groups[n].ncpus = UINT_MAX; 759f72186bfdd5 Ming Lei 2021-08-14 139 } 759f72186bfdd5 Ming Lei 2021-08-14 140 759f72186bfdd5 Ming Lei 2021-08-14 141 for_each_node_mask(n, nodemsk) { 759f72186bfdd5 Ming Lei 2021-08-14 142 unsigned ncpus; 759f72186bfdd5 Ming Lei 2021-08-14 143 759f72186bfdd5 Ming Lei 2021-08-14 144 cpumask_and(nmsk, cpu_mask, node_to_cpumask[n]); 759f72186bfdd5 Ming Lei 2021-08-14 145 ncpus = cpumask_weight(nmsk); 759f72186bfdd5 Ming Lei 2021-08-14 146 759f72186bfdd5 Ming Lei 2021-08-14 147 if (!ncpus) 759f72186bfdd5 Ming Lei 2021-08-14 148 continue; 759f72186bfdd5 Ming Lei 2021-08-14 149 remaining_ncpus += ncpus; 759f72186bfdd5 Ming Lei 2021-08-14 150 node_groups[n].ncpus = ncpus; 759f72186bfdd5 Ming Lei 2021-08-14 151 } 759f72186bfdd5 Ming Lei 2021-08-14 152 759f72186bfdd5 Ming Lei 2021-08-14 153 numgrps = min_t(unsigned, remaining_ncpus, numgrps); 759f72186bfdd5 Ming Lei 2021-08-14 154 759f72186bfdd5 Ming Lei 2021-08-14 155 sort(node_groups, nr_node_ids, sizeof(node_groups[0]), 759f72186bfdd5 Ming Lei 2021-08-14 156 ncpus_cmp_func, NULL); 759f72186bfdd5 Ming Lei 2021-08-14 157 759f72186bfdd5 Ming Lei 2021-08-14 158 /* 759f72186bfdd5 Ming Lei 2021-08-14 159 * Allocate groups for each node according to the ratio of this 759f72186bfdd5 Ming Lei 2021-08-14 160 * node's nr_cpus to remaining un-assigned ncpus. 'numgrps' is 759f72186bfdd5 Ming Lei 2021-08-14 161 * bigger than number of active numa nodes. Always start the 759f72186bfdd5 Ming Lei 2021-08-14 162 * allocation from the node with minimized nr_cpus. 759f72186bfdd5 Ming Lei 2021-08-14 163 * 759f72186bfdd5 Ming Lei 2021-08-14 164 * This way guarantees that each active node gets allocated at 759f72186bfdd5 Ming Lei 2021-08-14 165 * least one group, and the theory is simple: over-allocation 759f72186bfdd5 Ming Lei 2021-08-14 166 * is only done when this node is assigned by one group, so 759f72186bfdd5 Ming Lei 2021-08-14 167 * other nodes will be allocated >= 1 groups, since 'numgrps' is 759f72186bfdd5 Ming Lei 2021-08-14 168 * bigger than number of numa nodes. 759f72186bfdd5 Ming Lei 2021-08-14 169 * 759f72186bfdd5 Ming Lei 2021-08-14 170 * One perfect invariant is that number of allocated groups for 759f72186bfdd5 Ming Lei 2021-08-14 171 * each node is <= CPU count of this node: 759f72186bfdd5 Ming Lei 2021-08-14 172 * 759f72186bfdd5 Ming Lei 2021-08-14 173 * 1) suppose there are two nodes: A and B 759f72186bfdd5 Ming Lei 2021-08-14 174 * ncpu(X) is CPU count of node X 759f72186bfdd5 Ming Lei 2021-08-14 175 * grps(X) is the group count allocated to node X via this 759f72186bfdd5 Ming Lei 2021-08-14 176 * algorithm 759f72186bfdd5 Ming Lei 2021-08-14 177 * 759f72186bfdd5 Ming Lei 2021-08-14 178 * ncpu(A) <= ncpu(B) 759f72186bfdd5 Ming Lei 2021-08-14 179 * ncpu(A) + ncpu(B) = N 759f72186bfdd5 Ming Lei 2021-08-14 180 * grps(A) + grps(B) = G 759f72186bfdd5 Ming Lei 2021-08-14 181 * 759f72186bfdd5 Ming Lei 2021-08-14 182 * grps(A) = max(1, round_down(G * ncpu(A) / N)) 759f72186bfdd5 Ming Lei 2021-08-14 183 * grps(B) = G - grps(A) 759f72186bfdd5 Ming Lei 2021-08-14 184 * 759f72186bfdd5 Ming Lei 2021-08-14 185 * both N and G are integer, and 2 <= G <= N, suppose 759f72186bfdd5 Ming Lei 2021-08-14 186 * G = N - delta, and 0 <= delta <= N - 2 759f72186bfdd5 Ming Lei 2021-08-14 187 * 759f72186bfdd5 Ming Lei 2021-08-14 188 * 2) obviously grps(A) <= ncpu(A) because: 759f72186bfdd5 Ming Lei 2021-08-14 189 * 759f72186bfdd5 Ming Lei 2021-08-14 190 * if grps(A) is 1, then grps(A) <= ncpu(A) given 759f72186bfdd5 Ming Lei 2021-08-14 191 * ncpu(A) >= 1 759f72186bfdd5 Ming Lei 2021-08-14 192 * 759f72186bfdd5 Ming Lei 2021-08-14 193 * otherwise, 759f72186bfdd5 Ming Lei 2021-08-14 194 * grps(A) <= G * ncpu(A) / N <= ncpu(A), given G <= N 759f72186bfdd5 Ming Lei 2021-08-14 195 * 759f72186bfdd5 Ming Lei 2021-08-14 196 * 3) prove how grps(B) <= ncpu(B): 759f72186bfdd5 Ming Lei 2021-08-14 197 * 759f72186bfdd5 Ming Lei 2021-08-14 198 * if round_down(G * ncpu(A) / N) == 0, vecs(B) won't be 759f72186bfdd5 Ming Lei 2021-08-14 199 * over-allocated, so grps(B) <= ncpu(B), 759f72186bfdd5 Ming Lei 2021-08-14 200 * 759f72186bfdd5 Ming Lei 2021-08-14 201 * otherwise: 759f72186bfdd5 Ming Lei 2021-08-14 202 * 759f72186bfdd5 Ming Lei 2021-08-14 203 * grps(A) = 759f72186bfdd5 Ming Lei 2021-08-14 204 * round_down(G * ncpu(A) / N) = 759f72186bfdd5 Ming Lei 2021-08-14 205 * round_down((N - delta) * ncpu(A) / N) = 759f72186bfdd5 Ming Lei 2021-08-14 206 * round_down((N * ncpu(A) - delta * ncpu(A)) / N) >= 759f72186bfdd5 Ming Lei 2021-08-14 207 * round_down((N * ncpu(A) - delta * N) / N) = 759f72186bfdd5 Ming Lei 2021-08-14 208 * cpu(A) - delta 759f72186bfdd5 Ming Lei 2021-08-14 209 * 759f72186bfdd5 Ming Lei 2021-08-14 210 * then: 759f72186bfdd5 Ming Lei 2021-08-14 211 * 759f72186bfdd5 Ming Lei 2021-08-14 212 * grps(A) - G >= ncpu(A) - delta - G 759f72186bfdd5 Ming Lei 2021-08-14 213 * => 759f72186bfdd5 Ming Lei 2021-08-14 214 * G - grps(A) <= G + delta - ncpu(A) 759f72186bfdd5 Ming Lei 2021-08-14 215 * => 759f72186bfdd5 Ming Lei 2021-08-14 216 * grps(B) <= N - ncpu(A) 759f72186bfdd5 Ming Lei 2021-08-14 217 * => 759f72186bfdd5 Ming Lei 2021-08-14 218 * grps(B) <= cpu(B) 759f72186bfdd5 Ming Lei 2021-08-14 219 * 759f72186bfdd5 Ming Lei 2021-08-14 220 * For nodes >= 3, it can be thought as one node and another big 759f72186bfdd5 Ming Lei 2021-08-14 221 * node given that is exactly what this algorithm is implemented, 759f72186bfdd5 Ming Lei 2021-08-14 222 * and we always re-calculate 'remaining_ncpus' & 'numgrps', and 759f72186bfdd5 Ming Lei 2021-08-14 223 * finally for each node X: grps(X) <= ncpu(X). 759f72186bfdd5 Ming Lei 2021-08-14 224 * 759f72186bfdd5 Ming Lei 2021-08-14 225 */ 759f72186bfdd5 Ming Lei 2021-08-14 226 for (n = 0; n < nr_node_ids; n++) { 759f72186bfdd5 Ming Lei 2021-08-14 227 unsigned ngroups, ncpus; 759f72186bfdd5 Ming Lei 2021-08-14 228 759f72186bfdd5 Ming Lei 2021-08-14 229 if (node_groups[n].ncpus == UINT_MAX) 759f72186bfdd5 Ming Lei 2021-08-14 230 continue; 759f72186bfdd5 Ming Lei 2021-08-14 231 759f72186bfdd5 Ming Lei 2021-08-14 232 WARN_ON_ONCE(numgrps == 0); 759f72186bfdd5 Ming Lei 2021-08-14 233 759f72186bfdd5 Ming Lei 2021-08-14 234 ncpus = node_groups[n].ncpus; 759f72186bfdd5 Ming Lei 2021-08-14 235 ngroups = max_t(unsigned, 1, 759f72186bfdd5 Ming Lei 2021-08-14 @236 numgrps * ncpus / remaining_ncpus); 759f72186bfdd5 Ming Lei 2021-08-14 237 WARN_ON_ONCE(ngroups > ncpus); 759f72186bfdd5 Ming Lei 2021-08-14 238 759f72186bfdd5 Ming Lei 2021-08-14 239 node_groups[n].ngroups = ngroups; 759f72186bfdd5 Ming Lei 2021-08-14 240 759f72186bfdd5 Ming Lei 2021-08-14 241 remaining_ncpus -= ncpus; 759f72186bfdd5 Ming Lei 2021-08-14 242 numgrps -= ngroups; 759f72186bfdd5 Ming Lei 2021-08-14 243 } 759f72186bfdd5 Ming Lei 2021-08-14 244 } 759f72186bfdd5 Ming Lei 2021-08-14 245 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
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