From: kernel test robot <lkp@intel.com>
To: Nathan Fontenot <nathan.fontenot@amd.com>
Cc: oe-kbuild-all@lists.linux.dev
Subject: Re: [RFC] cxl: Update Soft Reserved resources upon region creation
Date: Mon, 7 Oct 2024 23:04:19 +0800 [thread overview]
Message-ID: <202410072217.TJBadKhH-lkp@intel.com> (raw)
In-Reply-To: <20241004181754.8960-1-nathan.fontenot@amd.com>
Hi Nathan,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/x86/core]
[also build test ERROR on linus/master v6.12-rc2 next-20241004]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nathan-Fontenot/cxl-Update-Soft-Reserved-resources-upon-region-creation/20241005-021920
base: tip/x86/core
patch link: https://lore.kernel.org/r/20241004181754.8960-1-nathan.fontenot%40amd.com
patch subject: [RFC] cxl: Update Soft Reserved resources upon region creation
config: i386-allnoconfig (https://download.01.org/0day-ci/archive/20241007/202410072217.TJBadKhH-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241007/202410072217.TJBadKhH-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410072217.TJBadKhH-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1242:17: note: in expansion of macro 'pr_err'
1242 | pr_err("CXL DEBUG Couldn't add Soft Reserved %llx (%llx)\n",
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1242:17: note: in expansion of macro 'pr_err'
1242 | pr_err("CXL DEBUG Couldn't add Soft Reserved %llx (%llx)\n",
| ^~~~~~
arch/x86/kernel/e820.c: In function 'e820__trim_soft_reserve':
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1274:17: note: in expansion of macro 'pr_err'
1274 | pr_err("CXL DEBUG Adjusting resource %pr (%llx - %llx)\n",
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1274:17: note: in expansion of macro 'pr_err'
1274 | pr_err("CXL DEBUG Adjusting resource %pr (%llx - %llx)\n",
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1285:17: note: in expansion of macro 'pr_err'
1285 | pr_err("CXL DEBUG Adjusting resource %pr (%llx - %llx)\n", res,
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1285:17: note: in expansion of macro 'pr_err'
1285 | pr_err("CXL DEBUG Adjusting resource %pr (%llx - %llx)\n", res,
| ^~~~~~
arch/x86/kernel/e820.c: At top level:
>> arch/x86/kernel/e820.c:1311:42: warning: 'union acpi_subtable_headers' declared inside parameter list will not be visible outside of this definition or declaration
1311 | static int __init e820_parse_cfmws(union acpi_subtable_headers *hdr, void *arg,
| ^~~~~~~~~~~~~~~~~~~~~
arch/x86/kernel/e820.c: In function 'e820_parse_cfmws':
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1331:17: note: in expansion of macro 'pr_err'
1331 | pr_err("CXL DEBUG Found SOFT RESERVE intersection %llx - %llx : %llx - %llx\n",
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1331:17: note: in expansion of macro 'pr_err'
1331 | pr_err("CXL DEBUG Found SOFT RESERVE intersection %llx - %llx : %llx - %llx\n",
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1331:17: note: in expansion of macro 'pr_err'
1331 | pr_err("CXL DEBUG Found SOFT RESERVE intersection %llx - %llx : %llx - %llx\n",
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 5 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1331:17: note: in expansion of macro 'pr_err'
1331 | pr_err("CXL DEBUG Found SOFT RESERVE intersection %llx - %llx : %llx - %llx\n",
| ^~~~~~
arch/x86/kernel/e820.c: In function 'e820__reserve_resources_late':
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1358:17: note: in expansion of macro 'pr_err'
1358 | pr_err("CXL DEBUG Checking e820 iomem resource %llx - %llx\n",
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1358:17: note: in expansion of macro 'pr_err'
1358 | pr_err("CXL DEBUG Checking e820 iomem resource %llx - %llx\n",
| ^~~~~~
>> arch/x86/kernel/e820.c:1361:30: error: implicit declaration of function 'acpi_table_parse_cedt'; did you mean 'acpi_table_parse'? [-Werror=implicit-function-declaration]
1361 | rc = acpi_table_parse_cedt(ACPI_CEDT_TYPE_CFMWS,
| ^~~~~~~~~~~~~~~~~~~~~
| acpi_table_parse
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1368:17: note: in expansion of macro 'pr_err'
1368 | pr_err("CXL DEBUG Inserting %llx - %llx\n", res->start, res->end);
| ^~~~~~
include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:437:25: note: in definition of macro 'printk_index_wrap'
437 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:508:9: note: in expansion of macro 'printk'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:508:16: note: in expansion of macro 'KERN_ERR'
508 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/x86/kernel/e820.c:1368:17: note: in expansion of macro 'pr_err'
1368 | pr_err("CXL DEBUG Inserting %llx - %llx\n", res->start, res->end);
| ^~~~~~
cc1: some warnings being treated as errors
vim +1361 arch/x86/kernel/e820.c
1252
1253 static void e820__trim_soft_reserve(struct resource *res,
1254 const struct resource *cxl_res)
1255 {
1256 resource_size_t new_start, new_end;
1257 int rc;
1258
1259 pr_err("CXL DEBUG Trimming Soft Reserves for %pr\n", cxl_res);
1260
1261 if (res->start == cxl_res->start && res->end == cxl_res->end) {
1262 pr_err("CXL DEBUG Releasing resource %pr\n", res);
1263 release_resource(res);
1264 kfree(res);
1265 } else if (res->start == cxl_res->start || res->end == cxl_res->end) {
1266 if (res->start == cxl_res->start) {
1267 new_start = cxl_res->end + 1;
1268 new_end = res->end;
1269 } else {
1270 new_start = res->start;
1271 new_end = cxl_res->start - 1;
1272 }
1273
1274 pr_err("CXL DEBUG Adjusting resource %pr (%llx - %llx)\n",
1275 res, new_start, new_end);
1276 rc = adjust_resource(res, new_start, new_end - new_start + 1);
1277 if (rc)
1278 pr_debug("Cannot adjust soft reserved resource %pr\n",
1279 res);
1280 } else {
1281 new_start = res->start;
1282 new_end = res->end;
1283
1284 /*Adjust existing to beginning resource */
> 1285 pr_err("CXL DEBUG Adjusting resource %pr (%llx - %llx)\n", res,
1286 new_start, cxl_res->start);
1287 adjust_resource(res, new_start, cxl_res->start - new_start + 1);
1288
1289 /* Add new resource for end piece */
1290 e820__add_soft_reserve(cxl_res->end + 1, new_end - cxl_res->end,
1291 res->flags);
1292 }
1293 }
1294
1295 void e820__trim_soft_reserves(const struct resource *cxl_res)
1296 {
1297 struct resource *res, *next;
1298
1299 pr_err("CXL DEBUG Trimming Soft Reserves\n");
1300 for (res = e820_sr_res.child; res; res = next) {
1301 next = res->sibling;
1302
1303 if (resource_contains(res, cxl_res)) {
1304 e820__trim_soft_reserve(res, cxl_res);
1305 break;
1306 }
1307 }
1308 }
1309 EXPORT_SYMBOL_GPL(e820__trim_soft_reserves);
1310
> 1311 static int __init e820_parse_cfmws(union acpi_subtable_headers *hdr, void *arg,
1312 const unsigned long unused)
1313 {
1314 struct acpi_cedt_cfmws *cfmws;
1315 struct resource *res = arg;
1316 struct resource cfmws_res;
1317
1318 /* Validation check, remove when finished debugging */
1319 if (!res->parent && res->end)
1320 pr_err("CXL DEBUG Should insert %pr\n", res);
1321
1322 if (res->parent || !res->end)
1323 return 0;
1324
1325 cfmws = (struct acpi_cedt_cfmws *)hdr;
1326 cfmws_res = DEFINE_RES_MEM(cfmws->base_hpa,
1327 cfmws->base_hpa + cfmws->window_size);
1328 pr_err("CXL DEBUG Found CFMWS: %pr\n", &cfmws_res);
1329
1330 if (resource_overlaps(&cfmws_res, res)) {
1331 pr_err("CXL DEBUG Found SOFT RESERVE intersection %llx - %llx : %llx - %llx\n",
1332 res->start, res->end, cfmws_res.start, cfmws_res.end);
1333 e820__add_soft_reserve(res->start, resource_size(res),
1334 res->flags);
1335 return 1;
1336 }
1337
1338 return 0;
1339 }
1340
1341 void __init e820__reserve_resources_late(void)
1342 {
1343 int i, rc;
1344 struct resource *res;
1345
1346 /*
1347 * Prior to inserting SOFT_RESERVED resources we want to check for an
1348 * intersection with potential CXL resources. Any SOFT_RESERVED resources
1349 * that do intersect a potential CXL resource are set aside so they
1350 * can be trimmed to accommodate CXL resource intersections and added to
1351 * the iomem resource tree after the CXL drivers have completed their
1352 * device probe.
1353 */
1354 pr_err("CXL DEBUG Checking e820 iomem resources\n");
1355
1356 res = e820_res;
1357 for (i = 0; i < e820_table->nr_entries; i++) {
> 1358 pr_err("CXL DEBUG Checking e820 iomem resource %llx - %llx\n",
1359 res->start, res->end);
1360 if (res->desc == IORES_DESC_SOFT_RESERVED) {
> 1361 rc = acpi_table_parse_cedt(ACPI_CEDT_TYPE_CFMWS,
1362 e820_parse_cfmws, res);
1363 if (rc) {
1364 res++;
1365 continue;
1366 }
1367 }
1368 pr_err("CXL DEBUG Inserting %llx - %llx\n", res->start, res->end);
1369 insert_resource_expand_to_fit(&iomem_resource, res);
1370 res++;
1371 }
1372
1373 /*
1374 * Try to bump up RAM regions to reasonable boundaries, to
1375 * avoid stolen RAM:
1376 */
1377 for (i = 0; i < e820_table->nr_entries; i++) {
1378 struct e820_entry *entry = &e820_table->entries[i];
1379 u64 start, end;
1380
1381 if (entry->type != E820_TYPE_RAM)
1382 continue;
1383
1384 start = entry->addr + entry->size;
1385 end = round_up(start, ram_alignment(start)) - 1;
1386 if (end > MAX_RESOURCE_SIZE)
1387 end = MAX_RESOURCE_SIZE;
1388 if (start >= end)
1389 continue;
1390
1391 printk(KERN_DEBUG "e820: reserve RAM buffer [mem %#010llx-%#010llx]\n", start, end);
1392 reserve_region_with_split(&iomem_resource, start, end, "RAM buffer");
1393 }
1394 }
1395
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2024-10-07 15:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-04 18:17 [RFC] cxl: Update Soft Reserved resources upon region creation Nathan Fontenot
2024-10-07 14:53 ` kernel test robot
2024-10-07 15:04 ` kernel test robot [this message]
2024-10-07 19:30 ` kernel test robot
2024-10-16 15:43 ` Jonathan Cameron
2024-10-17 14:49 ` Fontenot, Nathan
2024-10-17 16:53 ` Jonathan Cameron
2024-10-18 10:17 ` James Morse
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