3:33 a.m.
tree: https://android.googlesource.com/kernel/goldfish android-3.18
head: dd54b61f1458c03f68fc019b4874d98f2f0ae3a5
commit: 8214bf079208b146e63cd0a3ce0ed335a87ce7b3 [396/1051] scripts/dtc: Export YYLOC
global declaration
config: arm64-randconfig-s032-20210519 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 5.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
git remote add android-goldfish https://android.googlesource.com/kernel/goldfish
git fetch --no-tags android-goldfish android-3.18
git checkout 8214bf079208b146e63cd0a3ce0ed335a87ce7b3
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-5.5.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
arch/arm64/xen/../../arm/xen/enlighten.c:30:19: sparse: sparse: symbol
'_xen_start_info' was not declared. Should it be static?
arch/arm64/xen/../../arm/xen/enlighten.c:51:5: sparse: sparse: symbol
'xen_platform_pci_unplug' was not declared. Should it be static?
> arch/arm64/xen/../../arm/xen/enlighten.c:228:55: sparse: sparse:
Using plain integer as NULL pointer
In file included from
arch/arm64/xen/../../arm/xen/enlighten.c:4:0:
include/xen/hvm.h: In function 'param_name':
include/xen/hvm.h:30:9: warning: comparison between signed and unsigned integer
expressions [-Wsign-compare]
if (op >= ARRAY_SIZE(names))
^
In file included from arch/arm64/include/asm/mmu.h:24:0,
from include/linux/mm_types.h:18,
from include/asm-generic/pgtable.h:7,
from arch/arm64/include/asm/pgtable.h:525,
from arch/arm64/include/../../arm/include/asm/xen/page.h:5,
from arch/arm64/include/asm/xen/page.h:1,
from include/xen/page.h:4,
from arch/arm64/xen/../../arm/xen/enlighten.c:12:
arch/arm64/include/asm/cpufeature.h: In function 'arm64_ftr_value':
arch/arm64/include/asm/cpufeature.h:153:68: warning: signed and unsigned type in
conditional expression [-Wsign-compare]
cpuid_feature_extract_field_width(val, ftrp->shift, ftrp->width) :
^
arch/arm64/xen/../../arm/xen/enlighten.c: In function 'xen_guest_init':
arch/arm64/xen/../../arm/xen/enlighten.c:243:30: warning: comparison between signed and
unsigned integer expressions [-Wsign-compare]
if (strlen(xen_prefix) + 3 < len &&
^
vim +228 arch/arm64/xen/../../arm/xen/enlighten.c
8b271d57b57585 Julien Grall 2014-01-30 219
2e01f16601d892 Stefano Stabellini 2012-09-14 220 /*
2e01f16601d892 Stefano Stabellini 2012-09-14 221 * see
Documentation/devicetree/bindings/arm/xen.txt for the
2e01f16601d892 Stefano Stabellini 2012-09-14 222 * documentation of the Xen Device
Tree format.
2e01f16601d892 Stefano Stabellini 2012-09-14 223 */
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 224 #define GRANT_TABLE_PHYSADDR 0
2e01f16601d892 Stefano Stabellini 2012-09-14 225 static int __init
xen_guest_init(void)
2e01f16601d892 Stefano Stabellini 2012-09-14 226 {
2e01f16601d892 Stefano Stabellini 2012-09-14 227 struct xen_add_to_physmap xatp;
2e01f16601d892 Stefano Stabellini 2012-09-14 @228 static struct shared_info
*shared_info_page = 0;
2e01f16601d892 Stefano Stabellini 2012-09-14 229 struct device_node *node;
2e01f16601d892 Stefano Stabellini 2012-09-14 230 int len;
2e01f16601d892 Stefano Stabellini 2012-09-14 231 const char *s = NULL;
2e01f16601d892 Stefano Stabellini 2012-09-14 232 const char *version = NULL;
2e01f16601d892 Stefano Stabellini 2012-09-14 233 const char *xen_prefix =
"xen,xen-";
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 234 struct resource res;
47c542050d306e Julien Grall 2014-01-30 235 phys_addr_t grant_frames;
2e01f16601d892 Stefano Stabellini 2012-09-14 236
2e01f16601d892 Stefano Stabellini 2012-09-14 237 node =
of_find_compatible_node(NULL, NULL, "xen,xen");
2e01f16601d892 Stefano Stabellini 2012-09-14 238 if (!node) {
2e01f16601d892 Stefano Stabellini 2012-09-14 239 pr_debug("No Xen
support\n");
2e01f16601d892 Stefano Stabellini 2012-09-14 240 return 0;
2e01f16601d892 Stefano Stabellini 2012-09-14 241 }
2e01f16601d892 Stefano Stabellini 2012-09-14 242 s = of_get_property(node,
"compatible", &len);
2e01f16601d892 Stefano Stabellini 2012-09-14 243 if (strlen(xen_prefix) + 3 <
len &&
2e01f16601d892 Stefano Stabellini 2012-09-14 244 !strncmp(xen_prefix, s,
strlen(xen_prefix)))
2e01f16601d892 Stefano Stabellini 2012-09-14 245 version = s + strlen(xen_prefix);
2e01f16601d892 Stefano Stabellini 2012-09-14 246 if (version == NULL) {
2e01f16601d892 Stefano Stabellini 2012-09-14 247 pr_debug("Xen version not
found\n");
2e01f16601d892 Stefano Stabellini 2012-09-14 248 return 0;
2e01f16601d892 Stefano Stabellini 2012-09-14 249 }
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 250 if (of_address_to_resource(node,
GRANT_TABLE_PHYSADDR, &res))
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 251 return 0;
efaf30a3357872 Konrad Rzeszutek Wilk 2014-01-06 252 grant_frames = res.start;
0ec53ecf38bcbf Stefano Stabellini 2012-09-14 253 xen_events_irq =
irq_of_parse_and_map(node, 0);
47c542050d306e Julien Grall 2014-01-30 254 pr_info("Xen %s support found,
events_irq=%d gnttab_frame=%pa\n",
47c542050d306e Julien Grall 2014-01-30 255 version, xen_events_irq,
&grant_frames);
8b271d57b57585 Julien Grall 2014-01-30 256
8b271d57b57585 Julien Grall 2014-01-30 257 if (xen_events_irq < 0)
8b271d57b57585 Julien Grall 2014-01-30 258 return -ENODEV;
8b271d57b57585 Julien Grall 2014-01-30 259
2e01f16601d892 Stefano Stabellini 2012-09-14 260 xen_domain_type = XEN_HVM_DOMAIN;
2e01f16601d892 Stefano Stabellini 2012-09-14 261
ef61ee0dc7ba04 Stefano Stabellini 2012-08-08 262 xen_setup_features();
5ebc77de83c7b7 Stefano Stabellini 2014-09-10 263
5ebc77de83c7b7 Stefano Stabellini 2014-09-10 264 if
(!xen_feature(XENFEAT_grant_map_identity)) {
5ebc77de83c7b7 Stefano Stabellini 2014-09-10 265 pr_warn("Please upgrade your
Xen.\n"
5ebc77de83c7b7 Stefano Stabellini 2014-09-10 266 "If your platform has any
non-coherent DMA devices, they won't work properly.\n");
5ebc77de83c7b7 Stefano Stabellini 2014-09-10 267 }
5ebc77de83c7b7 Stefano Stabellini 2014-09-10 268
ef61ee0dc7ba04 Stefano Stabellini 2012-08-08 269 if (xen_feature(XENFEAT_dom0))
ef61ee0dc7ba04 Stefano Stabellini 2012-08-08 270 xen_start_info->flags |=
SIF_INITDOMAIN|SIF_PRIVILEGED;
ef61ee0dc7ba04 Stefano Stabellini 2012-08-08 271 else
ef61ee0dc7ba04 Stefano Stabellini 2012-08-08 272 xen_start_info->flags &=
~(SIF_INITDOMAIN|SIF_PRIVILEGED);
ef61ee0dc7ba04 Stefano Stabellini 2012-08-08 273
2e01f16601d892 Stefano Stabellini 2012-09-14 274 if (!shared_info_page)
2e01f16601d892 Stefano Stabellini 2012-09-14 275 shared_info_page = (struct
shared_info *)
2e01f16601d892 Stefano Stabellini 2012-09-14 276 get_zeroed_page(GFP_KERNEL);
2e01f16601d892 Stefano Stabellini 2012-09-14 277 if (!shared_info_page) {
2e01f16601d892 Stefano Stabellini 2012-09-14 278 pr_err("not enough
memory\n");
2e01f16601d892 Stefano Stabellini 2012-09-14 279 return -ENOMEM;
2e01f16601d892 Stefano Stabellini 2012-09-14 280 }
2e01f16601d892 Stefano Stabellini 2012-09-14 281 xatp.domid = DOMID_SELF;
2e01f16601d892 Stefano Stabellini 2012-09-14 282 xatp.idx = 0;
2e01f16601d892 Stefano Stabellini 2012-09-14 283 xatp.space =
XENMAPSPACE_shared_info;
2e01f16601d892 Stefano Stabellini 2012-09-14 284 xatp.gpfn = __pa(shared_info_page)
>> PAGE_SHIFT;
2e01f16601d892 Stefano Stabellini 2012-09-14 285 if
(HYPERVISOR_memory_op(XENMEM_add_to_physmap, &xatp))
2e01f16601d892 Stefano Stabellini 2012-09-14 286 BUG();
2e01f16601d892 Stefano Stabellini 2012-09-14 287
2e01f16601d892 Stefano Stabellini 2012-09-14 288 HYPERVISOR_shared_info = (struct
shared_info *)shared_info_page;
2e01f16601d892 Stefano Stabellini 2012-09-14 289
2e01f16601d892 Stefano Stabellini 2012-09-14 290 /* xen_vcpu is a pointer to the
vcpu_info struct in the shared_info
2e01f16601d892 Stefano Stabellini 2012-09-14 291 * page, we use it in the event
channel upcall and in some pvclock
9a9ab3cc00dc0c Stefano Stabellini 2013-04-25 292 * related functions.
2e01f16601d892 Stefano Stabellini 2012-09-14 293 * The shared info contains exactly
1 CPU (the boot CPU). The guest
2e01f16601d892 Stefano Stabellini 2012-09-14 294 * is required to use
VCPUOP_register_vcpu_info to place vcpu info
9a9ab3cc00dc0c Stefano Stabellini 2013-04-25 295 * for secondary CPUs as they are
brought up.
9a9ab3cc00dc0c Stefano Stabellini 2013-04-25 296 * For uniformity we use
VCPUOP_register_vcpu_info even on cpu0.
9a9ab3cc00dc0c Stefano Stabellini 2013-04-25 297 */
16691059c77a6a Julien Grall 2016-12-07 298 xen_vcpu_info = alloc_percpu(struct
vcpu_info);
9a9ab3cc00dc0c Stefano Stabellini 2013-04-25 299 if (xen_vcpu_info == NULL)
9a9ab3cc00dc0c Stefano Stabellini 2013-04-25 300 return -ENOMEM;
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 301
efaf30a3357872 Konrad Rzeszutek Wilk 2014-01-06 302 if
(gnttab_setup_auto_xlat_frames(grant_frames)) {
efaf30a3357872 Konrad Rzeszutek Wilk 2014-01-06 303 free_percpu(xen_vcpu_info);
efaf30a3357872 Konrad Rzeszutek Wilk 2014-01-06 304 return -ENOMEM;
efaf30a3357872 Konrad Rzeszutek Wilk 2014-01-06 305 }
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 306 gnttab_init();
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 307 if (!xen_initial_domain())
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 308 xenbus_probe(NULL);
b3b52fd87e8f75 Stefano Stabellini 2012-09-13 309
e1a9c16b303725 Julien Grall 2013-09-09 310 /*
e1a9c16b303725 Julien Grall 2013-09-09 311 * Making sure board specific code
will not set up ops for
e1a9c16b303725 Julien Grall 2013-09-09 312 * cpu idle and cpu freq.
e1a9c16b303725 Julien Grall 2013-09-09 313 */
e1a9c16b303725 Julien Grall 2013-09-09 314 disable_cpuidle();
e1a9c16b303725 Julien Grall 2013-09-09 315 disable_cpufreq();
e1a9c16b303725 Julien Grall 2013-09-09 316
8b271d57b57585 Julien Grall 2014-01-30 317 xen_init_IRQ();
8b271d57b57585 Julien Grall 2014-01-30 318
8b271d57b57585 Julien Grall 2014-01-30 319 if
(request_percpu_irq(xen_events_irq, xen_arm_callback,
8b271d57b57585 Julien Grall 2014-01-30 320 "events",
&xen_vcpu)) {
8b271d57b57585 Julien Grall 2014-01-30 321 pr_err("Error request IRQ
%d\n", xen_events_irq);
8b271d57b57585 Julien Grall 2014-01-30 322 return -EINVAL;
8b271d57b57585 Julien Grall 2014-01-30 323 }
8b271d57b57585 Julien Grall 2014-01-30 324
8b271d57b57585 Julien Grall 2014-01-30 325 xen_percpu_init();
8b271d57b57585 Julien Grall 2014-01-30 326
8b271d57b57585 Julien Grall 2014-01-30 327
register_cpu_notifier(&xen_cpu_notifier);
8b271d57b57585 Julien Grall 2014-01-30 328
1aa3d8d9935dfb Stefano Stabellini 2013-05-08 329 return 0;
1aa3d8d9935dfb Stefano Stabellini 2013-05-08 330 }
8b271d57b57585 Julien Grall 2014-01-30 331 early_initcall(xen_guest_init);
1aa3d8d9935dfb Stefano Stabellini 2013-05-08 332
:::::: The code at line 228 was first introduced by commit
:::::: 2e01f16601d8924b12b1acf1cdc49a0d1cc1cfb2 xen/arm: Xen detection and shared_info
page mapping
:::::: TO: Stefano Stabellini <stefano.stabellini(a)eu.citrix.com>
:::::: CC: Stefano Stabellini <stefano.stabellini(a)eu.citrix.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org