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Date: Thu, 6 Aug 2020 08:22:15 +0300 From: "Paraschiv, Andra-Irina" <andraprs@...zon.com> To: linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v6 15/18] nitro_enclaves: Add Makefile for the Nitro Enclaves driver On 05/08/2020 17:23, kernel test robot wrote: > > Hi Andra, > > Thank you for the patch! Yet something to improve: > > [auto build test ERROR on linux/master] > [also build test ERROR on linus/master v5.8 next-20200805] > [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/Andra-Paraschiv/Add-support-for-Nitro-Enclaves/20200805-171942 > base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git bcf876870b95592b52519ed4aafcf9d95999bc9c > config: arm64-allyesconfig (attached as .config) > compiler: aarch64-linux-gcc (GCC) 9.3.0 > 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 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 Removed, for now, the dependency on ARM64 arch. x86 is currently supported, with Arm to come afterwards. Thanks, Andra > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@...el.com> > > All errors (new ones prefixed by >>): > > drivers/virt/nitro_enclaves/ne_misc_dev.c: In function 'ne_setup_cpu_pool': >>> drivers/virt/nitro_enclaves/ne_misc_dev.c:245:46: error: 'smp_num_siblings' undeclared (first use in this function); did you mean 'cpu_sibling'? > 245 | ne_cpu_pool.avail_cores_size = nr_cpu_ids / smp_num_siblings; > | ^~~~~~~~~~~~~~~~ > | cpu_sibling > drivers/virt/nitro_enclaves/ne_misc_dev.c:245:46: note: each undeclared identifier is reported only once for each function it appears in > drivers/virt/nitro_enclaves/ne_misc_dev.c: In function 'ne_enclave_ioctl': > drivers/virt/nitro_enclaves/ne_misc_dev.c:928:54: error: 'smp_num_siblings' undeclared (first use in this function) > 928 | if (vcpu_id >= (ne_enclave->avail_cpu_cores_size * smp_num_siblings)) { > | ^~~~~~~~~~~~~~~~ > > vim +245 drivers/virt/nitro_enclaves/ne_misc_dev.c > > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 130 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 131 /** > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 132 * ne_setup_cpu_pool() - Set the NE CPU pool after handling sanity checks such > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 133 * as not sharing CPU cores with the primary / parent VM > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 134 * or not using CPU 0, which should remain available for > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 135 * the primary / parent VM. Offline the CPUs from the > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 136 * pool after the checks passed. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 137 * @ne_cpu_list: The CPU list used for setting NE CPU pool. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 138 * > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 139 * Context: Process context. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 140 * Return: > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 141 * * 0 on success. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 142 * * Negative return value on failure. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 143 */ > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 144 static int ne_setup_cpu_pool(const char *ne_cpu_list) > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 145 { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 146 int core_id = -1; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 147 unsigned int cpu = 0; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 148 cpumask_var_t cpu_pool = NULL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 149 unsigned int cpu_sibling = 0; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 150 unsigned int i = 0; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 151 int numa_node = -1; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 152 int rc = -EINVAL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 153 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 154 if (!ne_cpu_list) > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 155 return 0; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 156 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 157 if (!zalloc_cpumask_var(&cpu_pool, GFP_KERNEL)) > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 158 return -ENOMEM; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 159 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 160 mutex_lock(&ne_cpu_pool.mutex); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 161 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 162 rc = cpulist_parse(ne_cpu_list, cpu_pool); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 163 if (rc < 0) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 164 pr_err("%s: Error in cpulist parse [rc=%d]\n", ne_misc_dev.name, rc); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 165 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 166 goto free_pool_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 167 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 168 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 169 cpu = cpumask_any(cpu_pool); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 170 if (cpu >= nr_cpu_ids) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 171 pr_err("%s: No CPUs available in CPU pool\n", ne_misc_dev.name); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 172 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 173 rc = -EINVAL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 174 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 175 goto free_pool_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 176 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 177 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 178 /* > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 179 * Check if the CPUs from the NE CPU pool are from the same NUMA node. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 180 */ > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 181 for_each_cpu(cpu, cpu_pool) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 182 if (numa_node < 0) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 183 numa_node = cpu_to_node(cpu); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 184 if (numa_node < 0) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 185 pr_err("%s: Invalid NUMA node %d\n", > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 186 ne_misc_dev.name, numa_node); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 187 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 188 rc = -EINVAL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 189 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 190 goto free_pool_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 191 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 192 } else { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 193 if (numa_node != cpu_to_node(cpu)) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 194 pr_err("%s: CPUs with different NUMA nodes\n", > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 195 ne_misc_dev.name); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 196 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 197 rc = -EINVAL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 198 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 199 goto free_pool_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 200 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 201 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 202 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 203 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 204 /* > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 205 * Check if CPU 0 and its siblings are included in the provided CPU pool > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 206 * They should remain available for the primary / parent VM. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 207 */ > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 208 if (cpumask_test_cpu(0, cpu_pool)) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 209 pr_err("%s: CPU 0 has to remain available\n", ne_misc_dev.name); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 210 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 211 rc = -EINVAL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 212 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 213 goto free_pool_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 214 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 215 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 216 for_each_cpu(cpu_sibling, topology_sibling_cpumask(0)) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 217 if (cpumask_test_cpu(cpu_sibling, cpu_pool)) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 218 pr_err("%s: CPU sibling %d for CPU 0 is in CPU pool\n", > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 219 ne_misc_dev.name, cpu_sibling); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 220 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 221 rc = -EINVAL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 222 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 223 goto free_pool_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 224 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 225 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 226 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 227 /* > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 228 * Check if CPU siblings are included in the provided CPU pool. The > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 229 * expectation is that CPU cores are made available in the CPU pool for > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 230 * enclaves. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 231 */ > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 232 for_each_cpu(cpu, cpu_pool) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 233 for_each_cpu(cpu_sibling, topology_sibling_cpumask(cpu)) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 234 if (!cpumask_test_cpu(cpu_sibling, cpu_pool)) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 235 pr_err("%s: CPU %d is not in CPU pool\n", > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 236 ne_misc_dev.name, cpu_sibling); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 237 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 238 rc = -EINVAL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 239 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 240 goto free_pool_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 241 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 242 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 243 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 244 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 @245 ne_cpu_pool.avail_cores_size = nr_cpu_ids / smp_num_siblings; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 246 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 247 ne_cpu_pool.avail_cores = kcalloc(ne_cpu_pool.avail_cores_size, > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 248 sizeof(*ne_cpu_pool.avail_cores), > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 249 GFP_KERNEL); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 250 if (!ne_cpu_pool.avail_cores) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 251 rc = -ENOMEM; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 252 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 253 goto free_pool_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 254 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 255 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 256 for (i = 0; i < ne_cpu_pool.avail_cores_size; i++) > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 257 if (!zalloc_cpumask_var(&ne_cpu_pool.avail_cores[i], GFP_KERNEL)) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 258 rc = -ENOMEM; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 259 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 260 goto free_cores_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 261 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 262 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 263 /* Split the NE CPU pool in CPU cores. */ > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 264 for_each_cpu(cpu, cpu_pool) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 265 core_id = topology_core_id(cpu); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 266 if (core_id < 0 || core_id >= ne_cpu_pool.avail_cores_size) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 267 pr_err("%s: Invalid core id %d\n", > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 268 ne_misc_dev.name, core_id); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 269 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 270 rc = -EINVAL; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 271 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 272 goto clear_cpumask; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 273 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 274 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 275 cpumask_set_cpu(cpu, ne_cpu_pool.avail_cores[core_id]); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 276 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 277 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 278 /* > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 279 * CPUs that are given to enclave(s) should not be considered online > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 280 * by Linux anymore, as the hypervisor will degrade them to floating. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 281 * The physical CPUs (full cores) are carved out of the primary / parent > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 282 * VM and given to the enclave VM. The same number of vCPUs would run > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 283 * on less pCPUs for the primary / parent VM. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 284 * > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 285 * We offline them here, to not degrade performance and expose correct > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 286 * topology to Linux and user space. > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 287 */ > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 288 for_each_cpu(cpu, cpu_pool) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 289 rc = remove_cpu(cpu); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 290 if (rc != 0) { > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 291 pr_err("%s: CPU %d is not offlined [rc=%d]\n", > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 292 ne_misc_dev.name, cpu, rc); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 293 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 294 goto online_cpus; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 295 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 296 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 297 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 298 free_cpumask_var(cpu_pool); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 299 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 300 ne_cpu_pool.numa_node = numa_node; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 301 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 302 mutex_unlock(&ne_cpu_pool.mutex); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 303 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 304 return 0; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 305 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 306 online_cpus: > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 307 for_each_cpu(cpu, cpu_pool) > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 308 add_cpu(cpu); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 309 clear_cpumask: > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 310 for (i = 0; i < ne_cpu_pool.avail_cores_size; i++) > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 311 cpumask_clear(ne_cpu_pool.avail_cores[i]); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 312 free_cores_cpumask: > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 313 for (i = 0; i < ne_cpu_pool.avail_cores_size; i++) > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 314 free_cpumask_var(ne_cpu_pool.avail_cores[i]); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 315 kfree(ne_cpu_pool.avail_cores); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 316 ne_cpu_pool.avail_cores_size = 0; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 317 free_pool_cpumask: > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 318 free_cpumask_var(cpu_pool); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 319 mutex_unlock(&ne_cpu_pool.mutex); > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 320 > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 321 return rc; > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 322 } > 7d5c9a7dfa51e60 Andra Paraschiv 2020-08-05 323 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.
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