- Kernel - mailweb.openeuler.org

[openeuler:OLK-6.6 2687/2687] net/ipv4/tcp_output.c:1312:5: warning: variable 'tcp_hdr_rsrvd_4b' set but not used
by kernel test robot 18 Aug '25

18 Aug '25

Hi chengjunjia, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: dc90c923fed4944f134644261022885c12631518 commit: abe6bde15def9470fe18af30626e62d51f651dd9 [2687/2687] net: tcp: Modify codes for better compatibility of code format config: x86_64-buildonly-randconfig-2002-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181721.Nui6OZLt-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508181721.Nui6OZLt-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508181721.Nui6OZLt-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from net/ipv4/tcp_output.c:40: In file included from include/net/tcp.h:20: In file included from include/linux/tcp.h:17: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:8: In file included from include/linux/cacheflush.h:5: In file included from arch/x86/include/asm/cacheflush.h:5: In file included from include/linux/mm.h:2247: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ net/ipv4/tcp_output.c:186:3: warning: result of comparison of constant -1 with expression of type 'u8' (aka 'unsigned char') is always false [-Wtautological-constant-out-of-range-compare] 186 | NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPACKCOMPRESSED, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 187 | tp->compressed_ack); | ~~~~~~~~~~~~~~~~~~~ include/net/ip.h:302:41: note: expanded from macro 'NET_ADD_STATS' 302 | #define NET_ADD_STATS(net, field, adnd) SNMP_ADD_STATS((net)->mib.net_statistics, field, adnd) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/snmp.h:143:4: note: expanded from macro 'SNMP_ADD_STATS' 143 | this_cpu_add(mib->mibs[field], addend) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:491:33: note: expanded from macro 'this_cpu_add' 491 | #define this_cpu_add(pcp, val) __pcpu_size_call(this_cpu_add_, pcp, val) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) <scratch space>:64:1: note: expanded from here 64 | this_cpu_add_8 | ^ arch/x86/include/asm/percpu.h:370:35: note: expanded from macro 'this_cpu_add_8' 370 | #define this_cpu_add_8(pcp, val) percpu_add_op(8, volatile, (pcp), val) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/percpu.h:127:31: note: expanded from macro 'percpu_add_op' 127 | ((val) == 1 || (val) == -1)) ? \ | ~~~~~ ^ ~~ >> net/ipv4/tcp_output.c:1312:5: warning: variable 'tcp_hdr_rsrvd_4b' set but not used [-Wunused-but-set-variable] 1312 | u8 tcp_hdr_rsrvd_4b; | ^ 3 warnings generated. vim +/tcp_hdr_rsrvd_4b +1312 net/ipv4/tcp_output.c 1286 1287 /* This routine actually transmits TCP packets queued in by 1288 * tcp_do_sendmsg(). This is used by both the initial 1289 * transmission and possible later retransmissions. 1290 * All SKB's seen here are completely headerless. It is our 1291 * job to build the TCP header, and pass the packet down to 1292 * IP so it can do the same plus pass the packet off to the 1293 * device. 1294 * 1295 * We are working here with either a clone of the original 1296 * SKB, or a fresh unique copy made by the retransmit engine. 1297 */ 1298 static int __tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, 1299 int clone_it, gfp_t gfp_mask, u32 rcv_nxt) 1300 { 1301 const struct inet_connection_sock *icsk = inet_csk(sk); 1302 struct inet_sock *inet; 1303 struct tcp_sock *tp; 1304 struct tcp_skb_cb *tcb; 1305 struct tcp_out_options opts; 1306 unsigned int tcp_options_size, tcp_header_size; 1307 struct sk_buff *oskb = NULL; 1308 struct tcp_md5sig_key *md5; 1309 struct tcphdr *th; 1310 u64 prior_wstamp; 1311 int err; > 1312 u8 tcp_hdr_rsrvd_4b; 1313 1314 BUG_ON(!skb || !tcp_skb_pcount(skb)); 1315 tcp_hdr_rsrvd_4b = try_to_update_skb_for_caqm(sk, skb); 1316 tp = tcp_sk(sk); 1317 prior_wstamp = tp->tcp_wstamp_ns; 1318 tp->tcp_wstamp_ns = max(tp->tcp_wstamp_ns, tp->tcp_clock_cache); 1319 skb_set_delivery_time(skb, tp->tcp_wstamp_ns, true); 1320 if (clone_it) { 1321 oskb = skb; 1322 1323 tcp_skb_tsorted_save(oskb) { 1324 if (unlikely(skb_cloned(oskb))) 1325 skb = pskb_copy(oskb, gfp_mask); 1326 else 1327 skb = skb_clone(oskb, gfp_mask); 1328 } tcp_skb_tsorted_restore(oskb); 1329 1330 if (unlikely(!skb)) 1331 return -ENOBUFS; 1332 /* retransmit skbs might have a non zero value in skb->dev 1333 * because skb->dev is aliased with skb->rbnode.rb_left 1334 */ 1335 skb->dev = NULL; 1336 } 1337 1338 inet = inet_sk(sk); 1339 tcb = TCP_SKB_CB(skb); 1340 memset(&opts, 0, sizeof(opts)); 1341 1342 if (unlikely(tcb->tcp_flags & TCPHDR_SYN)) { 1343 tcp_options_size = tcp_syn_options(sk, skb, &opts, &md5); 1344 } else { 1345 tcp_options_size = tcp_established_options(sk, skb, &opts, 1346 &md5); 1347 /* Force a PSH flag on all (GSO) packets to expedite GRO flush 1348 * at receiver : This slightly improve GRO performance. 1349 * Note that we do not force the PSH flag for non GSO packets, 1350 * because they might be sent under high congestion events, 1351 * and in this case it is better to delay the delivery of 1-MSS 1352 * packets and thus the corresponding ACK packet that would 1353 * release the following packet. 1354 */ 1355 if (tcp_skb_pcount(skb) > 1) 1356 tcb->tcp_flags |= TCPHDR_PSH; 1357 } 1358 tcp_header_size = tcp_options_size + sizeof(struct tcphdr); 1359 1360 /* We set skb->ooo_okay to one if this packet can select 1361 * a different TX queue than prior packets of this flow, 1362 * to avoid self inflicted reorders. 1363 * The 'other' queue decision is based on current cpu number 1364 * if XPS is enabled, or sk->sk_txhash otherwise. 1365 * We can switch to another (and better) queue if: 1366 * 1) No packet with payload is in qdisc/device queues. 1367 * Delays in TX completion can defeat the test 1368 * even if packets were already sent. 1369 * 2) Or rtx queue is empty. 1370 * This mitigates above case if ACK packets for 1371 * all prior packets were already processed. 1372 */ 1373 skb->ooo_okay = sk_wmem_alloc_get(sk) < SKB_TRUESIZE(1) || 1374 tcp_rtx_queue_empty(sk); 1375 1376 /* If we had to use memory reserve to allocate this skb, 1377 * this might cause drops if packet is looped back : 1378 * Other socket might not have SOCK_MEMALLOC. 1379 * Packets not looped back do not care about pfmemalloc. 1380 */ 1381 skb->pfmemalloc = 0; 1382 1383 skb_push(skb, tcp_header_size); 1384 skb_reset_transport_header(skb); 1385 1386 skb_orphan(skb); 1387 skb->sk = sk; 1388 skb->destructor = skb_is_tcp_pure_ack(skb) ? __sock_wfree : tcp_wfree; 1389 refcount_add(skb->truesize, &sk->sk_wmem_alloc); 1390 1391 skb_set_dst_pending_confirm(skb, READ_ONCE(sk->sk_dst_pending_confirm)); 1392 1393 /* Build TCP header and checksum it. */ 1394 th = (struct tcphdr *)skb->data; 1395 th->source = inet->inet_sport; 1396 th->dest = inet->inet_dport; 1397 th->seq = htonl(tcb->seq); 1398 th->ack_seq = htonl(rcv_nxt); 1399 *(((__be16 *)th) + 6) = htons(((tcp_header_size >> 2) << 12) | 1400 tcb->tcp_flags); 1401 #ifdef CONFIG_ETH_CAQM 1402 if (static_branch_unlikely(&sysctl_caqm_enable)) 1403 *(((__be16 *)th) + 6) |= htons((tcp_hdr_rsrvd_4b & 0x0F) << 8); 1404 #endif 1405 1406 th->check = 0; 1407 th->urg_ptr = 0; 1408 1409 /* The urg_mode check is necessary during a below snd_una win probe */ 1410 if (unlikely(tcp_urg_mode(tp) && before(tcb->seq, tp->snd_up))) { 1411 if (before(tp->snd_up, tcb->seq + 0x10000)) { 1412 th->urg_ptr = htons(tp->snd_up - tcb->seq); 1413 th->urg = 1; 1414 } else if (after(tcb->seq + 0xFFFF, tp->snd_nxt)) { 1415 th->urg_ptr = htons(0xFFFF); 1416 th->urg = 1; 1417 } 1418 } 1419 1420 skb_shinfo(skb)->gso_type = sk->sk_gso_type; 1421 if (likely(!(tcb->tcp_flags & TCPHDR_SYN))) { 1422 th->window = htons(tcp_select_window(sk)); 1423 tcp_ecn_send(sk, skb, th, tcp_header_size); 1424 } else { 1425 /* RFC1323: The window in SYN & SYN/ACK segments 1426 * is never scaled. 1427 */ 1428 th->window = htons(min(tp->rcv_wnd, 65535U)); 1429 } 1430 1431 tcp_options_write(th, tp, &opts); 1432 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2687/2687] arch/x86/kernel/early-quirks.c:727:34: warning: no previous prototype for function 'kh40000_get_direct_dma_ops'
by kernel test robot 18 Aug '25

18 Aug '25

Hi leoliu-oc, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: dc90c923fed4944f134644261022885c12631518 commit: 11557c1ae4529f133483879b7ee00b7d8c653be7 [2687/2687] x86/cpu/zhaoxin: Encapsulate access to kh40000_dma_direct_ops within function config: x86_64-buildonly-randconfig-2004-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181705.DNNoRr4o-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508181705.DNNoRr4o-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508181705.DNNoRr4o-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/x86/kernel/early-quirks.c:13: In file included from include/linux/pci.h:1666: In file included from include/linux/dmapool.h:14: In file included from include/linux/scatterlist.h:8: In file included from include/linux/mm.h:2235: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ arch/x86/kernel/early-quirks.c:722:6: warning: no previous prototype for function 'is_zhaoxin_kh40000' [-Wmissing-prototypes] 722 | bool is_zhaoxin_kh40000(void) | ^ arch/x86/kernel/early-quirks.c:722:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 722 | bool is_zhaoxin_kh40000(void) | ^ | static >> arch/x86/kernel/early-quirks.c:727:34: warning: no previous prototype for function 'kh40000_get_direct_dma_ops' [-Wmissing-prototypes] 727 | __weak const struct dma_map_ops *kh40000_get_direct_dma_ops(void) | ^ arch/x86/kernel/early-quirks.c:727:14: note: declare 'static' if the function is not intended to be used outside of this translation unit 727 | __weak const struct dma_map_ops *kh40000_get_direct_dma_ops(void) | ^ | static 3 warnings generated. vim +/kh40000_get_direct_dma_ops +727 arch/x86/kernel/early-quirks.c 726 > 727 __weak const struct dma_map_ops *kh40000_get_direct_dma_ops(void) 728 { 729 return dma_ops; 730 } 731 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2687/2687] mm/oom_kill.c:316: warning: expecting prototype for We choose the task in low(). Prototype was for oom_next_task() instead
by kernel test robot 18 Aug '25

18 Aug '25

Hi Jing, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: dc90c923fed4944f134644261022885c12631518 commit: be8d95530886b0aaa5a59b5c43a285667c9eebc6 [2687/2687] memcg: support priority for oom config: x86_64-buildonly-randconfig-2001-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181712.NHUv50Nj-lkp@…) compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508181712.NHUv50Nj-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508181712.NHUv50Nj-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/oom_kill.c:316: warning: Function parameter or member 'task' not described in 'oom_next_task' mm/oom_kill.c:316: warning: Function parameter or member 'oc' not described in 'oom_next_task' mm/oom_kill.c:316: warning: Function parameter or member 'points' not described in 'oom_next_task' >> mm/oom_kill.c:316: warning: expecting prototype for We choose the task in low(). Prototype was for oom_next_task() instead vim +316 mm/oom_kill.c 308 309 #ifdef CONFIG_MEMCG_OOM_PRIORITY 310 /** 311 * We choose the task in low-priority memcg firstly. For the same state, we 312 * choose the task with the highest number of 'points'. 313 */ 314 static bool oom_next_task(struct task_struct *task, struct oom_control *oc, 315 long points) > 316 { 317 struct mem_cgroup *cur_memcg; 318 struct mem_cgroup *oc_memcg; 319 int cur_memcg_prio, oc_memcg_prio; 320 321 if (points == LONG_MIN) 322 return true; 323 324 if (!oc->chosen) 325 return false; 326 327 rcu_read_lock(); 328 oc_memcg = mem_cgroup_from_task(oc->chosen); 329 cur_memcg = mem_cgroup_from_task(task); 330 oc_memcg_prio = READ_ONCE(oc_memcg->oom_prio); 331 cur_memcg_prio = READ_ONCE(cur_memcg->oom_prio); 332 rcu_read_unlock(); 333 334 if (cur_memcg_prio == oc_memcg_prio) 335 return points < oc->chosen_points; 336 337 /* if oc is low-priority, so skip the task */ 338 if (oc_memcg_prio == MEMCG_LOW_OOM_PRIORITY) 339 return true; 340 341 return false; 342 } 343 #else 344 static inline bool oom_next_task(struct task_struct *task, 345 struct oom_control *oc, long points) 346 { 347 return points == LONG_MIN || points < oc->chosen_points; 348 } 349 #endif 350 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS] BUILD REGRESSION d321582a608e9baa7e4c110ab83219e4297a3dc7
by kernel test robot 18 Aug '25

18 Aug '25

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: d321582a608e9baa7e4c110ab83219e4297a3dc7 !17552 [openEuler-1.0-LTS] Revert "scsi: hisi_sas: fix a issue related to timer of internal IO and SMP IO" Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202508070154.VYnxHXi4-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202508070349.2ODYAkPf-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202508070424.1zkCZb3G-lkp@intel.com block/bio-integrity.c:41:6: warning: no previous prototype for function '__bio_integrity_free' [-Wmissing-prototypes] block/blk-cgroup.c:1843: warning: Function parameter or member 'q' not described in 'blkcg_schedule_throttle' block/blk-cgroup.c:1843: warning: Function parameter or member 'use_memdelay' not described in 'blkcg_schedule_throttle' block/blk-cgroup.c:1868: warning: Function parameter or member 'blkg' not described in 'blkcg_add_delay' block/blk-cgroup.c:1868: warning: Function parameter or member 'delta' not described in 'blkcg_add_delay' block/blk-cgroup.c:1868: warning: Function parameter or member 'now' not described in 'blkcg_add_delay' block/blk-mq-sched.c:220:5: warning: no previous prototype for function '__blk_mq_sched_dispatch_requests' [-Wmissing-prototypes] block/genhd.c:642:5: warning: no previous prototype for function 'disk_scan_partitions' [-Wmissing-prototypes] Unverified Error/Warning (likely false positive, kindly check if interested): include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- block-blk-io-hierarchy-iodump.c:warning:no-previous-prototype-for-__bio_stage_hierarchy_start | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | `-- mm-rodata_test.c:warning:no-previous-prototype-for-rodata_test |-- arm64-allnoconfig | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-wait-in-((struct-list_head-)x)-.prev | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-waiter-in-(struct-list_head-)((char-)sem-).prev | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa | |-- mm-rmap.c:warning:no-previous-prototype-for-is_vma_temporary_stack | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-defconfig | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-waiter-in-(struct-list_head-)((char-)sem-).prev | |-- include-linux-printk.h:warning:this-statement-may-fall-through | `-- include-linux-signal.h:warning:this-statement-may-fall-through |-- arm64-randconfig-001-20250818 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa | |-- mm-rmap.c:warning:no-previous-prototype-for-is_vma_temporary_stack | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-002-20250818 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- drivers-tty-tty_buffer.c:error:implicit-declaration-of-function-printk_safe_enter | |-- drivers-tty-tty_buffer.c:error:implicit-declaration-of-function-printk_safe_exit | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa | |-- mm-rmap.c:warning:no-previous-prototype-for-is_vma_temporary_stack | |-- mm-rodata_test.c:warning:no-previous-prototype-for-rodata_test | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-003-20250818 | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa | |-- mm-rmap.c:warning:no-previous-prototype-for-is_vma_temporary_stack | |-- mm-rodata_test.c:warning:no-previous-prototype-for-rodata_test | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-004-20250818 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | `-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa |-- arm64-randconfig-r063-20250818 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- include-linux-spinlock.h:warning:flags-may-be-used-uninitialized-in-this-function | `-- mm-memory.c:error:implicit-declaration-of-function-hugetlb_insert_hugepage_pte_by_pa |-- x86_64-allyesconfig | |-- block-bio-integrity.c:warning:no-previous-prototype-for-function-__bio_integrity_free | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests | |-- block-blk-wbt.c:warning:no-previous-prototype-for-function-wbt_issue | |-- block-blk-wbt.c:warning:no-previous-prototype-for-function-wbt_requeue | |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions | `-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union |-- x86_64-buildonly-randconfig-006-20250818 | |-- block-bfq-cgroup.o:warning:objtool:missing-symbol-for-section-.text | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- block-blk-mq-rdma.o:warning:objtool:missing-symbol-for-section-.text | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests | |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | |-- mm-kmemleak.c:error:implicit-declaration-of-function-printk_safe_enter-Werror-Wimplicit-function-declaration | `-- mm-kmemleak.c:error:implicit-declaration-of-function-printk_safe_exit-Werror-Wimplicit-function-declaration |-- x86_64-defconfig | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | `-- mm-rmap.c:warning:no-previous-prototype-for-is_vma_temporary_stack `-- x86_64-rhel-9.4-rust |-- block-bio-integrity.c:warning:no-previous-prototype-for-function-__bio_integrity_free |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests |-- block-blk-wbt.c:warning:no-previous-prototype-for-function-wbt_issue |-- block-blk-wbt.c:warning:no-previous-prototype-for-function-wbt_requeue |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union `-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool elapsed time: 728m configs tested: 17 configs skipped: 121 tested configs: arm64 allmodconfig gcc-15.1.0 arm64 allnoconfig gcc-15.1.0 arm64 defconfig gcc-15.1.0 arm64 randconfig-001-20250818 gcc-11.5.0 arm64 randconfig-002-20250818 gcc-12.5.0 arm64 randconfig-003-20250818 gcc-8.5.0 arm64 randconfig-004-20250818 gcc-8.5.0 x86_64 allnoconfig clang-20 x86_64 allyesconfig clang-20 x86_64 buildonly-randconfig-001-20250818 gcc-12 x86_64 buildonly-randconfig-002-20250818 gcc-12 x86_64 buildonly-randconfig-003-20250818 gcc-12 x86_64 buildonly-randconfig-004-20250818 gcc-12 x86_64 buildonly-randconfig-005-20250818 gcc-12 x86_64 buildonly-randconfig-006-20250818 clang-20 x86_64 defconfig gcc-11 x86_64 rhel-9.4-rust clang-22 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2687/2687] arch/x86/kernel/early-quirks.c:722:6: warning: no previous prototype for function 'is_zhaoxin_kh40000'
by kernel test robot 18 Aug '25

18 Aug '25

Hi leoliu-oc, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: dc90c923fed4944f134644261022885c12631518 commit: 8eaba08b2d72718a40cafe3402ab4f26b0dc62eb [2687/2687] x86/cpu/zhaoxin: Encapsulate access to global variables within functions config: x86_64-buildonly-randconfig-2004-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181643.2giEZ0ax-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508181643.2giEZ0ax-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508181643.2giEZ0ax-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/x86/kernel/early-quirks.c:13: In file included from include/linux/pci.h:1666: In file included from include/linux/dmapool.h:14: In file included from include/linux/scatterlist.h:8: In file included from include/linux/mm.h:2235: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> arch/x86/kernel/early-quirks.c:722:6: warning: no previous prototype for function 'is_zhaoxin_kh40000' [-Wmissing-prototypes] 722 | bool is_zhaoxin_kh40000(void) | ^ arch/x86/kernel/early-quirks.c:722:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 722 | bool is_zhaoxin_kh40000(void) | ^ | static arch/x86/kernel/early-quirks.c:737:14: error: use of undeclared identifier 'kh40000_dma_direct_ops' 737 | dma_ops = &kh40000_dma_direct_ops; | ^ 2 warnings and 1 error generated. -- In file included from kernel/dma/contiguous.c:48: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:2235: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> kernel/dma/contiguous.c:209:13: warning: no previous prototype for function 'is_zhaoxin_kh40000' [-Wmissing-prototypes] 209 | bool __weak is_zhaoxin_kh40000(void) | ^ kernel/dma/contiguous.c:209:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 209 | bool __weak is_zhaoxin_kh40000(void) | ^ | static 2 warnings generated. vim +/is_zhaoxin_kh40000 +722 arch/x86/kernel/early-quirks.c 721 > 722 bool is_zhaoxin_kh40000(void) 723 { 724 return zhaoxin_kh40000; 725 } 726 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2687/2687] mm/vmalloc.c:4443: warning: Function parameter or member 'pgoff' not described in 'remap_vmalloc_hugepage_range_partial'
by kernel test robot 18 Aug '25

18 Aug '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: dc90c923fed4944f134644261022885c12631518 commit: 9b1283f2bec2134030e1e099b900579f1f03840e [2687/2687] mm/vmalloc: Extend vmalloc usage about hugepage config: x86_64-buildonly-randconfig-2001-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181645.yPRDUNGN-lkp@…) compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508181645.yPRDUNGN-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508181645.yPRDUNGN-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/vmalloc.c:4443: warning: Function parameter or member 'pgoff' not described in 'remap_vmalloc_hugepage_range_partial' vim +4443 mm/vmalloc.c 4423 4424 /** 4425 * remap_vmalloc_hugepage_range_partial - map vmalloc hugepages 4426 * to userspace 4427 * @vma: vma to cover 4428 * @uaddr: target user address to start at 4429 * @kaddr: virtual address of vmalloc hugepage kernel memory 4430 * @size: size of map area 4431 * 4432 * Returns: 0 for success, -Exxx on failure 4433 * 4434 * This function checks that @kaddr is a valid vmalloc'ed area, 4435 * and that it is big enough to cover the range starting at 4436 * @uaddr in @vma. Will return failure if that criteria isn't 4437 * met. 4438 * 4439 * Similar to remap_pfn_range() (see mm/memory.c) 4440 */ 4441 int remap_vmalloc_hugepage_range_partial(struct vm_area_struct *vma, unsigned long uaddr, 4442 void *kaddr, unsigned long pgoff, unsigned long size) > 4443 { 4444 struct vm_struct *area; 4445 unsigned long off; 4446 unsigned long end_index; 4447 4448 if (check_shl_overflow(pgoff, PMD_SHIFT, &off)) 4449 return -EINVAL; 4450 4451 size = ALIGN(size, PMD_SIZE); 4452 4453 if (!IS_ALIGNED(uaddr, PMD_SIZE) || !IS_ALIGNED((unsigned long)kaddr, PMD_SIZE)) 4454 return -EINVAL; 4455 4456 area = find_vm_area(kaddr); 4457 if (!area) 4458 return -EINVAL; 4459 4460 if (!(area->flags & VM_USERMAP)) 4461 return -EINVAL; 4462 4463 if (check_add_overflow(size, off, &end_index) || 4464 end_index > get_vm_area_size(area)) 4465 return -EINVAL; 4466 kaddr += off; 4467 4468 do { 4469 struct page *page = vmalloc_to_page(kaddr); 4470 int ret; 4471 4472 ret = hugetlb_insert_hugepage_pte_by_pa(vma->vm_mm, uaddr, 4473 vma->vm_page_prot, page_to_phys(page)); 4474 if (ret) 4475 return ret; 4476 4477 uaddr += PMD_SIZE; 4478 kaddr += PMD_SIZE; 4479 size -= PMD_SIZE; 4480 } while (size > 0); 4481 4482 vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); 4483 4484 return 0; 4485 } 4486 EXPORT_SYMBOL(remap_vmalloc_hugepage_range_partial); 4487 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2687/2687] drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ethtool.c:299:21: warning: variable 'netdev' set but not used
by kernel test robot 18 Aug '25

18 Aug '25

Hi Bennie, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: dc90c923fed4944f134644261022885c12631518 commit: 2d861e6888256771288076b36aa9beba46c7af67 [2687/2687] Net: nebula_matrix: fix ci compile nbl_ethtool.c warning config: x86_64-buildonly-randconfig-2002-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181604.dgmSZq8P-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508181604.dgmSZq8P-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508181604.dgmSZq8P-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ethtool.c:7: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ethtool.h:10: In file included from drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_service.h:10: In file included from include/linux/mm.h:2247: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ethtool.c:299:21: warning: variable 'netdev' set but not used [-Wunused-but-set-variable] 299 | struct net_device *netdev; | ^ >> drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ethtool.c:1666:36: warning: variable 'net_resource_mgt' set but not used [-Wunused-but-set-variable] 1666 | struct nbl_serv_net_resource_mgt *net_resource_mgt; | ^ 3 warnings generated. vim +/netdev +299 drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_ethtool.c bad535d287c9c1 Bennie Yan 2024-09-24 293 2d861e68882567 Bennie Yan 2024-11-19 294 static void nbl_serv_adjust_interrpt_param(struct nbl_service_mgt *serv_mgt, bool ethtool) bad535d287c9c1 Bennie Yan 2024-09-24 295 { bad535d287c9c1 Bennie Yan 2024-09-24 296 struct nbl_serv_net_resource_mgt *net_resource_mgt; bad535d287c9c1 Bennie Yan 2024-09-24 297 struct nbl_serv_ring_mgt *ring_mgt; bad535d287c9c1 Bennie Yan 2024-09-24 298 struct nbl_dispatch_ops *disp_ops; bad535d287c9c1 Bennie Yan 2024-09-24 @299 struct net_device *netdev; bad535d287c9c1 Bennie Yan 2024-09-24 300 struct nbl_serv_ring_vsi_info *vsi_info; bad535d287c9c1 Bennie Yan 2024-09-24 301 u64 last_tx_packets; bad535d287c9c1 Bennie Yan 2024-09-24 302 u64 last_rx_packets; bad535d287c9c1 Bennie Yan 2024-09-24 303 u64 last_get_stats_jiffies, time_diff; bad535d287c9c1 Bennie Yan 2024-09-24 304 u64 tx_packets, rx_packets; bad535d287c9c1 Bennie Yan 2024-09-24 305 u64 tx_rates, rx_rates, pkt_rates; bad535d287c9c1 Bennie Yan 2024-09-24 306 u16 local_vector_id, vector_num; bad535d287c9c1 Bennie Yan 2024-09-24 307 u16 intr_suppress_level; bad535d287c9c1 Bennie Yan 2024-09-24 308 bad535d287c9c1 Bennie Yan 2024-09-24 309 net_resource_mgt = NBL_SERV_MGT_TO_NET_RES_MGT(serv_mgt); bad535d287c9c1 Bennie Yan 2024-09-24 310 netdev = net_resource_mgt->netdev; bad535d287c9c1 Bennie Yan 2024-09-24 311 ring_mgt = NBL_SERV_MGT_TO_RING_MGT(serv_mgt); bad535d287c9c1 Bennie Yan 2024-09-24 312 disp_ops = NBL_SERV_MGT_TO_DISP_OPS(serv_mgt); bad535d287c9c1 Bennie Yan 2024-09-24 313 vsi_info = &ring_mgt->vsi_info[NBL_VSI_DATA]; bad535d287c9c1 Bennie Yan 2024-09-24 314 bad535d287c9c1 Bennie Yan 2024-09-24 315 last_tx_packets = net_resource_mgt->stats.tx_packets; bad535d287c9c1 Bennie Yan 2024-09-24 316 last_rx_packets = net_resource_mgt->stats.rx_packets; bad535d287c9c1 Bennie Yan 2024-09-24 317 last_get_stats_jiffies = net_resource_mgt->get_stats_jiffies; bad535d287c9c1 Bennie Yan 2024-09-24 318 disp_ops->get_net_stats(NBL_SERV_MGT_TO_DISP_PRIV(serv_mgt), &net_resource_mgt->stats); bad535d287c9c1 Bennie Yan 2024-09-24 319 /* ethtool -S don't adaptive interrupt suppression param */ bad535d287c9c1 Bennie Yan 2024-09-24 320 if (!vsi_info->itr_dynamic || ethtool) bad535d287c9c1 Bennie Yan 2024-09-24 321 return; bad535d287c9c1 Bennie Yan 2024-09-24 322 bad535d287c9c1 Bennie Yan 2024-09-24 323 tx_packets = net_resource_mgt->stats.tx_packets; bad535d287c9c1 Bennie Yan 2024-09-24 324 rx_packets = net_resource_mgt->stats.rx_packets; bad535d287c9c1 Bennie Yan 2024-09-24 325 time_diff = jiffies - last_get_stats_jiffies; bad535d287c9c1 Bennie Yan 2024-09-24 326 bad535d287c9c1 Bennie Yan 2024-09-24 327 net_resource_mgt->get_stats_jiffies = jiffies; bad535d287c9c1 Bennie Yan 2024-09-24 328 tx_rates = (tx_packets - last_tx_packets) / time_diff * HZ; bad535d287c9c1 Bennie Yan 2024-09-24 329 rx_rates = (rx_packets - last_rx_packets) / time_diff * HZ; bad535d287c9c1 Bennie Yan 2024-09-24 330 pkt_rates = max_t(u64, tx_rates, rx_rates); bad535d287c9c1 Bennie Yan 2024-09-24 331 bad535d287c9c1 Bennie Yan 2024-09-24 332 intr_suppress_level = bad535d287c9c1 Bennie Yan 2024-09-24 333 disp_ops->get_intr_suppress_level(NBL_SERV_MGT_TO_DISP_PRIV(serv_mgt), pkt_rates, bad535d287c9c1 Bennie Yan 2024-09-24 334 ring_mgt->vectors->intr_suppress_level); bad535d287c9c1 Bennie Yan 2024-09-24 335 if (intr_suppress_level != ring_mgt->vectors->intr_suppress_level) { bad535d287c9c1 Bennie Yan 2024-09-24 336 local_vector_id = ring_mgt->vectors[vsi_info->ring_offset].local_vector_id; bad535d287c9c1 Bennie Yan 2024-09-24 337 vector_num = vsi_info->ring_num; bad535d287c9c1 Bennie Yan 2024-09-24 338 disp_ops->set_intr_suppress_level(NBL_SERV_MGT_TO_DISP_PRIV(serv_mgt), bad535d287c9c1 Bennie Yan 2024-09-24 339 local_vector_id, vector_num, bad535d287c9c1 Bennie Yan 2024-09-24 340 intr_suppress_level); bad535d287c9c1 Bennie Yan 2024-09-24 341 ring_mgt->vectors->intr_suppress_level = intr_suppress_level; bad535d287c9c1 Bennie Yan 2024-09-24 342 } bad535d287c9c1 Bennie Yan 2024-09-24 343 } bad535d287c9c1 Bennie Yan 2024-09-24 344 :::::: The code at line 299 was first introduced by commit :::::: bad535d287c9c1056d99de3666be7da84de4a8fc Net:nbl_core: Add nbl_core-driver for nebula-matrix S1055AS series smart NIC. :::::: TO: Bennie Yan <bennie.yan(a)nebula-matrix.com> :::::: CC: Bennie Yan <bennie.yan(a)nebula-matrix.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2687/2687] fs/xfs/libxfs/xfs_alloc.c:102:1: warning: no previous prototype for function 'xfs_ag_fixup_aside'
by kernel test robot 18 Aug '25

18 Aug '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: dc90c923fed4944f134644261022885c12631518 commit: 8c6e9756375dff2e96d3b598992b2f0e8b3682ee [2687/2687] xfs: fix xfs shutdown since we reserve more blocks in agfl fixup config: x86_64-buildonly-randconfig-2004-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181555.TtWAnl9S-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508181555.TtWAnl9S-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508181555.TtWAnl9S-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from fs/xfs/libxfs/xfs_alloc.c:6: In file included from fs/xfs/xfs.h:22: In file included from fs/xfs/xfs_linux.h:24: In file included from fs/xfs/kmem.h:11: In file included from include/linux/mm.h:2181: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> fs/xfs/libxfs/xfs_alloc.c:102:1: warning: no previous prototype for function 'xfs_ag_fixup_aside' [-Wmissing-prototypes] 102 | xfs_ag_fixup_aside( | ^ fs/xfs/libxfs/xfs_alloc.c:101:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 101 | xfs_extlen_t | ^ | static 2 warnings generated. vim +/xfs_ag_fixup_aside +102 fs/xfs/libxfs/xfs_alloc.c > 6 #include "xfs.h" 7 #include "xfs_fs.h" 8 #include "xfs_format.h" 9 #include "xfs_log_format.h" 10 #include "xfs_shared.h" 11 #include "xfs_trans_resv.h" 12 #include "xfs_bit.h" 13 #include "xfs_mount.h" 14 #include "xfs_defer.h" 15 #include "xfs_btree.h" 16 #include "xfs_rmap.h" 17 #include "xfs_alloc_btree.h" 18 #include "xfs_alloc.h" 19 #include "xfs_extent_busy.h" 20 #include "xfs_errortag.h" 21 #include "xfs_error.h" 22 #include "xfs_trace.h" 23 #include "xfs_trans.h" 24 #include "xfs_buf_item.h" 25 #include "xfs_log.h" 26 #include "xfs_ag.h" 27 #include "xfs_ag_resv.h" 28 #include "xfs_bmap.h" 29 30 struct kmem_cache *xfs_extfree_item_cache; 31 32 struct workqueue_struct *xfs_alloc_wq; 33 34 #define XFS_ABSDIFF(a,b) (((a) <= (b)) ? ((b) - (a)) : ((a) - (b))) 35 36 #define XFSA_FIXUP_BNO_OK 1 37 #define XFSA_FIXUP_CNT_OK 2 38 39 /* 40 * Size of the AGFL. For CRC-enabled filesystes we steal a couple of slots in 41 * the beginning of the block for a proper header with the location information 42 * and CRC. 43 */ 44 unsigned int 45 xfs_agfl_size( 46 struct xfs_mount *mp) 47 { 48 unsigned int size = mp->m_sb.sb_sectsize; 49 50 if (xfs_has_crc(mp)) 51 size -= sizeof(struct xfs_agfl); 52 53 return size / sizeof(xfs_agblock_t); 54 } 55 56 unsigned int 57 xfs_refc_block( 58 struct xfs_mount *mp) 59 { 60 if (xfs_has_rmapbt(mp)) 61 return XFS_RMAP_BLOCK(mp) + 1; 62 if (xfs_has_finobt(mp)) 63 return XFS_FIBT_BLOCK(mp) + 1; 64 return XFS_IBT_BLOCK(mp) + 1; 65 } 66 67 xfs_extlen_t 68 xfs_prealloc_blocks( 69 struct xfs_mount *mp) 70 { 71 if (xfs_has_reflink(mp)) 72 return xfs_refc_block(mp) + 1; 73 if (xfs_has_rmapbt(mp)) 74 return XFS_RMAP_BLOCK(mp) + 1; 75 if (xfs_has_finobt(mp)) 76 return XFS_FIBT_BLOCK(mp) + 1; 77 return XFS_IBT_BLOCK(mp) + 1; 78 } 79 80 /* 81 * The number of blocks per AG that we withhold from xfs_mod_fdblocks to 82 * guarantee that we can refill the AGFL prior to allocating space in a nearly 83 * full AG. Although the space described by the free space btrees, the 84 * blocks used by the freesp btrees themselves, and the blocks owned by the 85 * AGFL are counted in the ondisk fdblocks, it's a mistake to let the ondisk 86 * free space in the AG drop so low that the free space btrees cannot refill an 87 * empty AGFL up to the minimum level. Rather than grind through empty AGs 88 * until the fs goes down, we subtract this many AG blocks from the incore 89 * fdblocks to ensure user allocation does not overcommit the space the 90 * filesystem needs for the AGFLs. The rmap btree uses a per-AG reservation to 91 * withhold space from xfs_mod_fdblocks, so we do not account for that here. 92 */ 93 #define XFS_ALLOCBT_AGFL_RESERVE 4 94 95 /* 96 * Twice fixup for the same ag may happen within exact one tp, and the consume 97 * of agfl after first fixup may trigger second fixup's failure, then xfs will 98 * shutdown. To avoid that, we reserve blocks which can satisfy the second 99 * fixup. 100 */ 101 xfs_extlen_t > 102 xfs_ag_fixup_aside( 103 struct xfs_mount *mp) 104 { 105 xfs_extlen_t ret; 106 107 ret = 2 * mp->m_alloc_maxlevels; 108 if (xfs_has_rmapbt(mp)) 109 ret += mp->m_rmap_maxlevels; 110 111 return ret; 112 } 113 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2687/2687] mm/memblock.c:1409:20: warning: no previous prototype for function 'memblock_alloc_range_nid_flags'
by kernel test robot 18 Aug '25

18 Aug '25

Hi Ma, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 57dc07b15d29507022f36882532a0fe229cf2805 commit: 64018b291c1f49622c4b23b303364d760306d662 [2687/2687] mm/memblock: Introduce ability to alloc memory from specify memory region config: x86_64-buildonly-randconfig-2004-20250818 (https://download.01.org/0day-ci/archive/20250818/202508181425.Y4IdsW4X-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508181425.Y4IdsW4X-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508181425.Y4IdsW4X-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/memblock.c:18: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:2181: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> mm/memblock.c:1409:20: warning: no previous prototype for function 'memblock_alloc_range_nid_flags' [-Wmissing-prototypes] 1409 | phys_addr_t __init memblock_alloc_range_nid_flags(phys_addr_t size, | ^ mm/memblock.c:1409:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1409 | phys_addr_t __init memblock_alloc_range_nid_flags(phys_addr_t size, | ^ | static 2 warnings generated. vim +/memblock_alloc_range_nid_flags +1409 mm/memblock.c 1386 1387 /** 1388 * memblock_alloc_range_nid_flags - allocate boot memory block with specify flag 1389 * @size: size of memory block to be allocated in bytes 1390 * @align: alignment of the region and block's size 1391 * @start: the lower bound of the memory region to allocate (phys address) 1392 * @end: the upper bound of the memory region to allocate (phys address) 1393 * @nid: nid of the free area to find, %NUMA_NO_NODE for any node 1394 * @exact_nid: control the allocation fall back to other nodes 1395 * @flags: alloc memory from specify memblock flag 1396 * 1397 * The allocation is performed from memory region limited by 1398 * memblock.current_limit if @end == %MEMBLOCK_ALLOC_ACCESSIBLE. 1399 * 1400 * If the specified node can not hold the requested memory and @exact_nid 1401 * is false, the allocation falls back to any node in the system. 1402 * 1403 * In addition, function sets the min_count to 0 using kmemleak_alloc_phys for 1404 * allocated boot memory block, so that it is never reported as leaks. 1405 * 1406 * Return: 1407 * Physical address of allocated memory block on success, %0 on failure. 1408 */ > 1409 phys_addr_t __init memblock_alloc_range_nid_flags(phys_addr_t size, 1410 phys_addr_t align, phys_addr_t start, 1411 phys_addr_t end, int nid, 1412 bool exact_nid, 1413 enum memblock_flags flags) 1414 { 1415 phys_addr_t found; 1416 1417 if (WARN_ONCE(nid == MAX_NUMNODES, "Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead\n")) 1418 nid = NUMA_NO_NODE; 1419 1420 if (!align) { 1421 /* Can't use WARNs this early in boot on powerpc */ 1422 dump_stack(); 1423 align = SMP_CACHE_BYTES; 1424 } 1425 1426 again: 1427 found = memblock_find_in_range_node(size, align, start, end, nid, 1428 flags); 1429 if (found && !memblock_reserve(found, size)) 1430 goto done; 1431 1432 if (nid != NUMA_NO_NODE && !exact_nid) { 1433 found = memblock_find_in_range_node(size, align, start, 1434 end, NUMA_NO_NODE, 1435 flags); 1436 if (found && !memblock_reserve(found, size)) 1437 goto done; 1438 } 1439 1440 if (flags & MEMBLOCK_MIRROR) { 1441 flags &= ~MEMBLOCK_MIRROR; 1442 pr_warn_ratelimited("Could not allocate %pap bytes of mirrored memory\n", 1443 &size); 1444 goto again; 1445 } 1446 1447 return 0; 1448 1449 done: 1450 /* 1451 * Skip kmemleak for those places like kasan_init() and 1452 * early_pgtable_alloc() due to high volume. 1453 */ 1454 if (end != MEMBLOCK_ALLOC_NOLEAKTRACE) 1455 /* 1456 * Memblock allocated blocks are never reported as 1457 * leaks. This is because many of these blocks are 1458 * only referred via the physical address which is 1459 * not looked up by kmemleak. 1460 */ 1461 kmemleak_alloc_phys(found, size, 0); 1462 1463 /* 1464 * Some Virtual Machine platforms, such as Intel TDX or AMD SEV-SNP, 1465 * require memory to be accepted before it can be used by the 1466 * guest. 1467 * 1468 * Accept the memory of the allocated buffer. 1469 */ 1470 accept_memory(found, found + size); 1471 1472 return found; 1473 } 1474 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10] comedi: aio_iiro_16: Fix bit shift out of bounds
by Luo Gengkun 18 Aug '25

18 Aug '25

From: Ian Abbott <abbotti(a)mev.co.uk> maillist inclusion category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICTB68 CVE: CVE-2025-38529 Reference: https://lore.kernel.org/all/20250724181646.291939-5-abbotti@mev.co.uk/ -------------------------------- When checking for a supported IRQ number, the following test is used: if ((1 << it->options[1]) & 0xdcfc) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test. Valid `it->options[1]` values that select the IRQ will be in the range [1,15]. The value 0 explicitly disables the use of interrupts. Fixes: ad7a370c8be4 ("staging: comedi: aio_iiro_16: add command support for change of state detection") Cc: stable(a)vger.kernel.org # 5.13+ Signed-off-by: Ian Abbott <abbotti(a)mev.co.uk> Link: https://lore.kernel.org/r/20250707134622.75403-1-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Luo Gengkun <luogengkun2(a)huawei.com> --- drivers/staging/comedi/drivers/aio_iiro_16.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/aio_iiro_16.c b/drivers/staging/comedi/drivers/aio_iiro_16.c index fe3876235075..60c9c683906b 100644 --- a/drivers/staging/comedi/drivers/aio_iiro_16.c +++ b/drivers/staging/comedi/drivers/aio_iiro_16.c @@ -178,7 +178,8 @@ static int aio_iiro_16_attach(struct comedi_device *dev, * Digital input change of state interrupts are optionally supported * using IRQ 2-7, 10-12, 14, or 15. */ - if ((1 << it->options[1]) & 0xdcfc) { + if (it->options[1] > 0 && it->options[1] < 16 && + (1 << it->options[1]) & 0xdcfc) { ret = request_irq(it->options[1], aio_iiro_16_cos, 0, dev->board_name, dev); if (ret == 0) -- 2.34.1

2 1