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[PATCH OLK-5.10] ice: Fix a null pointer dereference in ice_copy_and_init_pkg()
by Wang Liang 09 Dec '25

09 Dec '25

From: Haoxiang Li <haoxiang_li2024(a)163.com> stable inclusion from stable-v5.10.241 commit 435462f8ab2b9c5340a5414ce02f70117d0cfede category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICUCA2 CVE: CVE-2025-38664 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4ff12d82dac119b4b99b5a78b5af3bf2474c0a36 ] Add check for the return value of devm_kmemdup() to prevent potential null pointer dereference. Fixes: c76488109616 ("ice: Implement Dynamic Device Personalization (DDP) download") Cc: stable(a)vger.kernel.org Signed-off-by: Haoxiang Li <haoxiang_li2024(a)163.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski(a)linux.intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov(a)intel.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Tested-by: Rinitha S <sx.rinitha(a)intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen(a)intel.com> [ applied the patch to ice_flex_pipe.c instead of ice_ddp.c ] Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Liang <wangliang74(a)huawei.com> --- drivers/net/ethernet/intel/ice/ice_flex_pipe.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c index a81be917f653..da2906720c63 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c +++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c @@ -1449,6 +1449,8 @@ enum ice_status ice_copy_and_init_pkg(struct ice_hw *hw, const u8 *buf, u32 len) return ICE_ERR_PARAM; buf_copy = devm_kmemdup(ice_hw_to_dev(hw), buf, len, GFP_KERNEL); + if (!buf_copy) + return ICE_ERR_NO_MEMORY; status = ice_init_pkg(hw, buf_copy, len); if (status) { -- 2.34.1

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[PATCH OLK-5.10] ipv6: reject malicious packets in ipv6_gso_segment()
by Wang Liang 09 Dec '25

09 Dec '25

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v5.10.241 commit 3f638e0b28bde7c3354a0df938ab3a96739455d1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICU6G7 CVE: CVE-2025-38572 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d45cf1e7d7180256e17c9ce88e32e8061a7887fe ] syzbot was able to craft a packet with very long IPv6 extension headers leading to an overflow of skb->transport_header. This 16bit field has a limited range. Add skb_reset_transport_header_careful() helper and use it from ipv6_gso_segment() WARNING: CPU: 0 PID: 5871 at ./include/linux/skbuff.h:3032 skb_reset_transport_header include/linux/skbuff.h:3032 [inline] WARNING: CPU: 0 PID: 5871 at ./include/linux/skbuff.h:3032 ipv6_gso_segment+0x15e2/0x21e0 net/ipv6/ip6_offload.c:151 Modules linked in: CPU: 0 UID: 0 PID: 5871 Comm: syz-executor211 Not tainted 6.16.0-rc6-syzkaller-g7abc678e3084 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:skb_reset_transport_header include/linux/skbuff.h:3032 [inline] RIP: 0010:ipv6_gso_segment+0x15e2/0x21e0 net/ipv6/ip6_offload.c:151 Call Trace: <TASK> skb_mac_gso_segment+0x31c/0x640 net/core/gso.c:53 nsh_gso_segment+0x54a/0xe10 net/nsh/nsh.c:110 skb_mac_gso_segment+0x31c/0x640 net/core/gso.c:53 __skb_gso_segment+0x342/0x510 net/core/gso.c:124 skb_gso_segment include/net/gso.h:83 [inline] validate_xmit_skb+0x857/0x11b0 net/core/dev.c:3950 validate_xmit_skb_list+0x84/0x120 net/core/dev.c:4000 sch_direct_xmit+0xd3/0x4b0 net/sched/sch_generic.c:329 __dev_xmit_skb net/core/dev.c:4102 [inline] __dev_queue_xmit+0x17b6/0x3a70 net/core/dev.c:4679 Fixes: d1da932ed4ec ("ipv6: Separate ipv6 offload support") Reported-by: syzbot+af43e647fd835acc02df(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/netdev/688a1a05.050a0220.5d226.0008.GAE@google.com/… Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Dawid Osuchowski <dawid.osuchowski(a)linux.intel.com> Reviewed-by: Willem de Bruijn <willemb(a)google.com> Link: https://patch.msgid.link/20250730131738.3385939-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Liang <wangliang74(a)huawei.com> --- include/linux/skbuff.h | 23 +++++++++++++++++++++++ net/ipv6/ip6_offload.c | 4 +++- 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 4a7a2ff7aec3..6e8dfec0a2a9 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2594,6 +2594,29 @@ static inline void skb_reset_transport_header(struct sk_buff *skb) skb->transport_header = skb->data - skb->head; } +/** + * skb_reset_transport_header_careful - conditionally reset transport header + * @skb: buffer to alter + * + * Hardened version of skb_reset_transport_header(). + * + * Returns: true if the operation was a success. + */ +static inline bool __must_check +skb_reset_transport_header_careful(struct sk_buff *skb) +{ + long offset = skb->data - skb->head; + + if (unlikely(offset != (typeof(skb->transport_header))offset)) + return false; + + if (unlikely(offset == (typeof(skb->transport_header))~0U)) + return false; + + skb->transport_header = offset; + return true; +} + static inline void skb_set_transport_header(struct sk_buff *skb, const int offset) { diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index 15c8eef1ef44..71b5a7c3df09 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -111,7 +111,9 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, ops = rcu_dereference(inet6_offloads[proto]); if (likely(ops && ops->callbacks.gso_segment)) { - skb_reset_transport_header(skb); + if (!skb_reset_transport_header_careful(skb)) + goto out; + segs = ops->callbacks.gso_segment(skb, features); if (!segs) skb->network_header = skb_mac_header(skb) + nhoff - skb->head; -- 2.34.1

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[PATCH OLK-5.10] arm64: kdump: Skip kmemleak scan reserved memory for kdump
by Zeng Heng 09 Dec '25

09 Dec '25

From: Chen Wandun <chenwandun(a)huawei.com> mainline inclusion from mainline-v5.15-rc1 commit 85f58eb1889826b9745737718723a80b639e0fbd category: bugfix bugzilla: 188440 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Trying to boot with kdump + kmemleak, command will result in a crash: "echo scan > /sys/kernel/debug/kmemleak" crashkernel reserved: 0x0000000007c00000 - 0x0000000027c00000 (512 MB) Kernel command line: BOOT_IMAGE=(hd1,gpt2)/vmlinuz-5.14.0-rc5-next-20210809+ root=/dev/mapper/ao-root ro rd.lvm.lv=ao/root rd.lvm.lv=ao/swap crashkernel=512M Unable to handle kernel paging request at virtual address ffff000007c00000 Mem abort info: ESR = 0x96000007 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000007 CM = 0, WnR = 0 swapper pgtable: 64k pages, 48-bit VAs, pgdp=00002024f0d80000 [ffff000007c00000] pgd=1800205ffffd0003, p4d=1800205ffffd0003, pud=1800205ffffd0003, pmd=1800205ffffc0003, pte=0068000007c00f06 Internal error: Oops: 96000007 [#1] SMP pstate: 804000c9 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : scan_block+0x98/0x230 lr : scan_block+0x94/0x230 sp : ffff80008d6cfb70 x29: ffff80008d6cfb70 x28: 0000000000000000 x27: 0000000000000000 x26: 00000000000000c0 x25: 0000000000000001 x24: 0000000000000000 x23: ffffa88a6b18b398 x22: ffff000007c00ff9 x21: ffffa88a6ac7fc40 x20: ffffa88a6af6a830 x19: ffff000007c00000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffffffffffffffff x14: ffffffff00000000 x13: ffffffffffffffff x12: 0000000000000020 x11: 0000000000000000 x10: 0000000001080000 x9 : ffffa88a6951c77c x8 : ffffa88a6a893988 x7 : ffff203ff6cfb3c0 x6 : ffffa88a6a52b3c0 x5 : ffff203ff6cfb3c0 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000001 x1 : ffff20226cb56a40 x0 : 0000000000000000 Call trace: scan_block+0x98/0x230 scan_gray_list+0x120/0x270 kmemleak_scan+0x3a0/0x648 kmemleak_write+0x3ac/0x4c8 full_proxy_write+0x6c/0xa0 vfs_write+0xc8/0x2b8 ksys_write+0x70/0xf8 __arm64_sys_write+0x24/0x30 invoke_syscall+0x4c/0x110 el0_svc_common+0x9c/0x190 do_el0_svc+0x30/0x98 el0_svc+0x28/0xd8 el0t_64_sync_handler+0x90/0xb8 el0t_64_sync+0x180/0x184 The reserved memory for kdump will be looked up by kmemleak, this area will be set invalid when kdump service is bring up. That will result in crash when kmemleak scan this area. Fixes: a7259df76702 ("memblock: make memblock_find_in_range method private") Signed-off-by: Chen Wandun <chenwandun(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Reviewed-by: Mike Rapoport <rppt(a)linux.ibm.com> Reviewed-by: Catalin Marinas <catalin.marinas(a)arm.com> Link: https://lore.kernel.org/r/20210910064844.3827813-1-chenwandun@huawei.com Signed-off-by: Catalin Marinas <catalin.marinas(a)arm.com> conflict: arch/arm64/mm/init.c Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Signed-off-by: Zeng Heng <zengheng4(a)huawei.com> --- kernel/crash_core.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/kernel/crash_core.c b/kernel/crash_core.c index d1402585bf84..368d8d1dd03c 100644 --- a/kernel/crash_core.c +++ b/kernel/crash_core.c @@ -9,6 +9,7 @@ #include <linux/vmalloc.h> #include <linux/memblock.h> #include <linux/swiotlb.h> +#include <linux/kmemleak.h> #ifdef CONFIG_KEXEC_CORE #include <asm/kexec.h> @@ -556,6 +557,14 @@ void __init reserve_crashkernel(void) (unsigned long)(crash_base >> 20), (unsigned long)(total_mem >> 20)); +#ifdef CONFIG_ARM64 + /* + * The crashkernel memory will be removed from the kernel linear + * map. Inform kmemleak so that it won't try to access it. + */ + kmemleak_ignore_phys(crash_base); +#endif + crashk_res.start = crash_base; crashk_res.end = crash_base + crash_size - 1; } -- 2.25.1

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[openeuler:OLK-6.6 3493/3493] mm/memblock.c:1409:20: warning: no previous prototype for function 'memblock_alloc_range_nid_flags'
by kernel test robot 09 Dec '25

09 Dec '25

Hi Ma, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: d86ef4e1e96aa04c46e92dca30f98d069c1ad15a commit: 64018b291c1f49622c4b23b303364d760306d662 [3493/3493] mm/memblock: Introduce ability to alloc memory from specify memory region config: x86_64-randconfig-r122-20251209 (https://download.01.org/0day-ci/archive/20251209/202512091204.Q8mSD8MC-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/20251209/202512091204.Q8mSD8MC-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/202512091204.Q8mSD8MC-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. -- >> mm/memblock.c:1579: warning: expecting prototype for memblock_alloc_internal(). Prototype was for __memblock_alloc_internal() instead 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 1475 /** 1476 * memblock_alloc_range_nid - allocate boot memory block 1477 * @size: size of memory block to be allocated in bytes 1478 * @align: alignment of the region and block's size 1479 * @start: the lower bound of the memory region to allocate (phys address) 1480 * @end: the upper bound of the memory region to allocate (phys address) 1481 * @nid: nid of the free area to find, %NUMA_NO_NODE for any node 1482 * @exact_nid: control the allocation fall back to other nodes 1483 * 1484 * The allocation is performed from memory region limited by 1485 * memblock.current_limit if @end == %MEMBLOCK_ALLOC_ACCESSIBLE. 1486 * 1487 * If the specified node can not hold the requested memory and @exact_nid 1488 * is false, the allocation falls back to any node in the system. 1489 * 1490 * For systems with memory mirroring, the allocation is attempted first 1491 * from the regions with mirroring enabled and then retried from any 1492 * memory region. 1493 * 1494 * In addition, function using kmemleak_alloc_phys for allocated boot 1495 * memory block, it is never reported as leaks. 1496 * 1497 * Return: 1498 * Physical address of allocated memory block on success, %0 on failure. 1499 */ 1500 phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size, 1501 phys_addr_t align, phys_addr_t start, 1502 phys_addr_t end, int nid, 1503 bool exact_nid) 1504 { 1505 return memblock_alloc_range_nid_flags(size, align, start, end, nid, 1506 exact_nid, 1507 choose_memblock_flags()); 1508 } 1509 1510 /** 1511 * memblock_phys_alloc_range - allocate a memory block inside specified range 1512 * @size: size of memory block to be allocated in bytes 1513 * @align: alignment of the region and block's size 1514 * @start: the lower bound of the memory region to allocate (physical address) 1515 * @end: the upper bound of the memory region to allocate (physical address) 1516 * 1517 * Allocate @size bytes in the between @start and @end. 1518 * 1519 * Return: physical address of the allocated memory block on success, 1520 * %0 on failure. 1521 */ 1522 phys_addr_t __init memblock_phys_alloc_range(phys_addr_t size, 1523 phys_addr_t align, 1524 phys_addr_t start, 1525 phys_addr_t end) 1526 { 1527 memblock_dbg("%s: %llu bytes align=0x%llx from=%pa max_addr=%pa %pS\n", 1528 __func__, (u64)size, (u64)align, &start, &end, 1529 (void *)_RET_IP_); 1530 return memblock_alloc_range_nid(size, align, start, end, NUMA_NO_NODE, 1531 false); 1532 } 1533 1534 /** 1535 * memblock_phys_alloc_try_nid - allocate a memory block from specified NUMA node 1536 * @size: size of memory block to be allocated in bytes 1537 * @align: alignment of the region and block's size 1538 * @nid: nid of the free area to find, %NUMA_NO_NODE for any node 1539 * 1540 * Allocates memory block from the specified NUMA node. If the node 1541 * has no available memory, attempts to allocated from any node in the 1542 * system. 1543 * 1544 * Return: physical address of the allocated memory block on success, 1545 * %0 on failure. 1546 */ 1547 phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid) 1548 { 1549 return memblock_alloc_range_nid(size, align, 0, 1550 MEMBLOCK_ALLOC_ACCESSIBLE, nid, false); 1551 } 1552 1553 /** 1554 * memblock_alloc_internal - allocate boot memory block 1555 * @size: size of memory block to be allocated in bytes 1556 * @align: alignment of the region and block's size 1557 * @min_addr: the lower bound of the memory region to allocate (phys address) 1558 * @max_addr: the upper bound of the memory region to allocate (phys address) 1559 * @nid: nid of the free area to find, %NUMA_NO_NODE for any node 1560 * @exact_nid: control the allocation fall back to other nodes 1561 * @flags: alloc memory from specify memblock flag 1562 * 1563 * Allocates memory block using memblock_alloc_range_nid() and 1564 * converts the returned physical address to virtual. 1565 * 1566 * The @min_addr limit is dropped if it can not be satisfied and the allocation 1567 * will fall back to memory below @min_addr. Other constraints, such 1568 * as node and mirrored memory will be handled again in 1569 * memblock_alloc_range_nid(). 1570 * 1571 * Return: 1572 * Virtual address of allocated memory block on success, NULL on failure. 1573 */ 1574 static void * __init __memblock_alloc_internal( 1575 phys_addr_t size, phys_addr_t align, 1576 phys_addr_t min_addr, phys_addr_t max_addr, 1577 int nid, bool exact_nid, 1578 enum memblock_flags flags) > 1579 { 1580 phys_addr_t alloc; 1581 1582 /* 1583 * Detect any accidental use of these APIs after slab is ready, as at 1584 * this moment memblock may be deinitialized already and its 1585 * internal data may be destroyed (after execution of memblock_free_all) 1586 */ 1587 if (WARN_ON_ONCE(slab_is_available())) 1588 return kzalloc_node(size, GFP_NOWAIT, nid); 1589 1590 if (max_addr > memblock.current_limit) 1591 max_addr = memblock.current_limit; 1592 1593 alloc = memblock_alloc_range_nid_flags(size, align, min_addr, max_addr, nid, 1594 exact_nid, flags); 1595 1596 /* retry allocation without lower limit */ 1597 if (!alloc && min_addr) 1598 alloc = memblock_alloc_range_nid_flags(size, align, 0, max_addr, nid, 1599 exact_nid, flags); 1600 1601 if (!alloc) 1602 return NULL; 1603 1604 return phys_to_virt(alloc); 1605 } 1606 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 3386/3386] fs/proc/task_mmu.c:192:23: warning: variable 'last_vma_start' set but not used
by kernel test robot 09 Dec '25

09 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 69d9543977fd7abe8b555406c7a3e5d64d8292f8 commit: 094a76ab06c367065280f8760d2100db0c8a0b6a [3386/3386] mm: proc: use per_vma mmap_lock for vma traversal. config: x86_64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251209/202512090552.wjNONK6W-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251209/202512090552.wjNONK6W-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/202512090552.wjNONK6W-lkp@intel.com/ All warnings (new ones prefixed by >>): fs/proc/task_mmu.c: In function 'numa_maps_next': >> fs/proc/task_mmu.c:192:23: warning: variable 'last_vma_start' set but not used [-Wunused-but-set-variable] 192 | unsigned long last_vma_start; | ^~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PTP_1588_CLOCK Depends on [n]: NET [=y] && POSIX_TIMERS [=n] Selected by [m]: - SXE [=m] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_LINKDATA [=y] && (X86 [=y] || ARM64) && PCI [=y] - SXE_VF [=m] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_LINKDATA [=y] && (X86 [=y] || ARM64) && PCI [=y] vim +/last_vma_start +192 fs/proc/task_mmu.c 184 185 static void *numa_maps_next(struct seq_file *m, void *v, loff_t *ppos) 186 { 187 struct proc_maps_private *priv = m->private; 188 struct vm_area_struct *next = NULL; 189 struct vm_area_struct *vma = v; 190 struct mm_struct *mm = priv->mm; 191 unsigned long last_vma_end; > 192 unsigned long last_vma_start; 193 int ret; 194 195 if (!mm) 196 goto out; 197 198 if (vma == priv->tail_vma) 199 goto out; 200 201 if (vma->vm_next) 202 next = vma->vm_next; 203 else 204 next = priv->tail_vma; 205 206 last_vma_end = vma->vm_end; 207 last_vma_start = vma->vm_start; 208 if (mmap_lock_is_contended(mm)) { 209 mmap_read_unlock(mm); 210 ret = mmap_read_lock_killable(mm); 211 if (ret) { 212 mmput(mm); 213 put_task_struct(priv->task); 214 priv->task = NULL; 215 return ERR_PTR(ret); 216 } 217 218 /* 219 * After dropping the lock, there are four cases to 220 * consider. See the following example for explanation. 221 * 222 * +------+------+-----------+ 223 * | VMA1 | VMA2 | VMA3 | 224 * +------+------+-----------+ 225 * | | | | 226 * 4k 8k 16k 400k 227 * 228 * Suppose we drop the lock after reading VMA2 due to 229 * contention, then we get: 230 * 231 * last_vma_end = 16k 232 * 233 * 1) VMA2 is freed, but VMA3 exists: 234 * 235 * find_vma(mm, 16k - 1) will return VMA3. 236 * In this case, just continue from VMA3. 237 * 238 * 2) VMA2 still exists: 239 * 240 * find_vma(mm, 16k - 1) will return VMA2. 241 * Iterate the loop like the original one. 242 * 243 * 3) No more VMAs can be found: 244 * 245 * find_vma(mm, 16k - 1) will return NULL. 246 * No more things to do, just break. 247 * 248 * 4) (last_vma_end - 1) is the middle of a vma (VMA'): 249 * 250 * find_vma(mm, 16k - 1) will return VMA' whose range 251 * contains last_vma_end. 252 * Iterate VMA' from last_vma_end. 253 */ 254 next = find_vma(mm, last_vma_end - 1); 255 256 /* Case 3 above */ 257 if (!next) 258 goto out; 259 260 /* Case 1 above */ 261 if (next->vm_start >= last_vma_end) 262 goto out; 263 264 /* Case 4 above */ 265 if (next->vm_end > last_vma_end) { 266 *ppos = last_vma_end; 267 return next; 268 } 269 270 /* Case 2 above */ 271 if (next->vm_next) 272 next = next->vm_next; 273 else 274 next = priv->tail_vma; 275 } 276 out: 277 *ppos = next ? next->vm_start : -1UL; 278 return next; 279 } 280 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3493/3493] mm/mempolicy.c:1115:25: warning: variable 'vma' set but not used
by kernel test robot 09 Dec '25

09 Dec '25

Hi Ze, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: d86ef4e1e96aa04c46e92dca30f98d069c1ad15a commit: dba69db9a5fc7c2c9c0cda0f32bb3b5f3d73ef93 [3493/3493] mm/damon/vaddr: Add demotion interface for migrating cold pages to target nodemask config: loongarch-randconfig-r111-20251209 (https://download.01.org/0day-ci/archive/20251209/202512091141.r06Y9a5w-lkp@…) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 6ec8c4351cfc1d0627d1633b02ea787bd29c77d8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251209/202512091141.r06Y9a5w-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/202512091141.r06Y9a5w-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from <built-in>:3: In file included from include/linux/compiler_types.h:150: include/linux/compiler-clang.h:33:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined] 33 | #define __SANITIZE_ADDRESS__ | ^ <built-in>:372:9: note: previous definition is here 372 | #define __SANITIZE_ADDRESS__ 1 | ^ In file included from mm/mempolicy.c:108: In file included from arch/loongarch/include/asm/tlb.h:140: include/asm-generic/tlb.h:632:10: warning: parameter 'ptep' set but not used [-Wunused-but-set-parameter] 632 | pte_t *ptep, unsigned int nr, unsigned long address) | ^ In file included from mm/mempolicy.c:108: arch/loongarch/include/asm/tlb.h:144:24: warning: default initialization of an object of type 'struct vm_area_struct' with const member leaves the object uninitialized [-Wdefault-const-init-field-unsafe] 144 | struct vm_area_struct vma; | ^ include/linux/mm_types.h:659:20: note: member 'vm_flags' declared 'const' here 659 | const vm_flags_t vm_flags; | ^ >> mm/mempolicy.c:1115:25: warning: variable 'vma' set but not used [-Wunused-but-set-variable] 1115 | struct vm_area_struct *vma; | ^ mm/mempolicy.c:2951:25: warning: default initialization of an object of type 'struct vm_area_struct' with const member leaves the object uninitialized [-Wdefault-const-init-field-unsafe] 2951 | struct vm_area_struct pvma; | ^ include/linux/mm_types.h:659:20: note: member 'vm_flags' declared 'const' here 659 | const vm_flags_t vm_flags; | ^ 5 warnings generated. vim +/vma +1115 mm/mempolicy.c 1106 1107 /* 1108 * Migrate area pages from one node to a target node. 1109 * Returns error or the number of pages not migrated. 1110 */ 1111 static int migrate_area_to_node(struct mm_struct *mm, int source, int dest, 1112 unsigned long start, unsigned long end, int flags) 1113 { 1114 nodemask_t nmask; > 1115 struct vm_area_struct *vma; 1116 LIST_HEAD(pagelist); 1117 int err = 0; 1118 struct migration_target_control mtc = { 1119 .nid = dest, 1120 .gfp_mask = GFP_HIGHUSER_MOVABLE | __GFP_THISNODE, 1121 }; 1122 1123 nodes_clear(nmask); 1124 node_set(source, nmask); 1125 1126 /* 1127 * This does not "check" the range but isolates all pages that 1128 * need migration. Between passing in the full user address 1129 * space range and MPOL_MF_DISCONTIG_OK, this call can not fail. 1130 */ 1131 vma = find_vma(mm, 0); 1132 VM_BUG_ON(!(flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL))); 1133 queue_pages_range(mm, start, end, &nmask, 1134 flags | MPOL_MF_DISCONTIG_OK, &pagelist, false); 1135 1136 if (!list_empty(&pagelist)) { 1137 err = migrate_pages(&pagelist, alloc_migration_target, NULL, 1138 (unsigned long)&mtc, MIGRATE_SYNC, MR_DAMON_DEMOTION, NULL); 1139 if (err) 1140 putback_movable_pages(&pagelist); 1141 } 1142 1143 return err; 1144 } 1145 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3493/3493] mm/madvise.c:297:6: warning: no previous prototype for function 'force_swapin_vma'
by kernel test robot 09 Dec '25

09 Dec '25

Hi Liu, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 36141432a37f7dedddde8825e724b07ce3a440fb commit: 92a0eb9bde6c03412b39f9f3d20968c091ea3b46 [3493/3493] memcg: introduce per-memcg swapin interface config: x86_64-randconfig-r122-20251209 (https://download.01.org/0day-ci/archive/20251209/202512091138.u8NXXfZk-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/20251209/202512091138.u8NXXfZk-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/202512091138.u8NXXfZk-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/madvise.c:9: In file included from include/linux/mman.h:5: 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_" | ~~~~~~~~~~~ ^ ~~~ In file included from mm/madvise.c:21: include/linux/mm_inline.h:46:41: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 46 | __mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~ ^ ~~~ include/linux/mm_inline.h:48:22: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 48 | NR_ZONE_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~~~~~~ ^ ~~~ >> mm/madvise.c:297:6: warning: no previous prototype for function 'force_swapin_vma' [-Wmissing-prototypes] 297 | void force_swapin_vma(struct vm_area_struct *vma) | ^ mm/madvise.c:297:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 297 | void force_swapin_vma(struct vm_area_struct *vma) | ^ | static 4 warnings generated. vim +/force_swapin_vma +297 mm/madvise.c 280 281 #ifdef CONFIG_MEMCG_SWAP_QOS 282 void force_swapin_vma(struct vm_area_struct *vma) 283 { 284 struct file *file = vma->vm_file; 285 286 if (!can_madv_lru_vma(vma)) 287 return; 288 289 if (!file) { 290 walk_page_vma(vma, &swapin_walk_ops, vma); 291 lru_add_drain(); 292 } else if (shmem_mapping(file->f_mapping)) 293 shmem_swapin_range(vma, vma->vm_start, 294 vma->vm_end, file->f_mapping); 295 } 296 #else > 297 void force_swapin_vma(struct vm_area_struct *vma) 298 { 299 } 300 #endif 301 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3490/3490] drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:838:6: error: no previous prototype for function 'sxe_hw_event_irq_auto_clear_set'
by kernel test robot 09 Dec '25

09 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 451d7461fb9403af592235b03ec6ead64b43e7c8 commit: 0ba0ebb029b99864fa5963024535f48299373354 [3490/3490] !15589 [OLK-6.6] Ethernet: Supports Linkdata ethernet Controllers config: arm64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251209/202512090327.qpSaRPFx-lkp@…) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 4125e73cdc6188cca4c1c72b72e2b2d85c157483) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251209/202512090327.qpSaRPFx-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/202512090327.qpSaRPFx-lkp@intel.com/ All errors (new ones prefixed by >>): 367 | #define __SANITIZE_ADDRESS__ 1 | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:230:6: error: no previous prototype for function 'sxe_hw_no_snoop_disable' [-Werror,-Wmissing-prototypes] 230 | void sxe_hw_no_snoop_disable(struct sxe_hw *hw) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:230:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 230 | void sxe_hw_no_snoop_disable(struct sxe_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:262:6: error: no previous prototype for function 'sxe_hw_uc_addr_pool_del' [-Werror,-Wmissing-prototypes] 262 | void sxe_hw_uc_addr_pool_del(struct sxe_hw *hw, u32 rar_idx, u32 pool_idx) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:262:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 262 | void sxe_hw_uc_addr_pool_del(struct sxe_hw *hw, u32 rar_idx, u32 pool_idx) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:283:5: error: no previous prototype for function 'sxe_hw_uc_addr_pool_enable' [-Werror,-Wmissing-prototypes] 283 | s32 sxe_hw_uc_addr_pool_enable(struct sxe_hw *hw, u8 rar_idx, u8 pool_idx) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:283:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 283 | s32 sxe_hw_uc_addr_pool_enable(struct sxe_hw *hw, u8 rar_idx, u8 pool_idx) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:337:5: error: no previous prototype for function 'sxe_hw_nic_reset' [-Werror,-Wmissing-prototypes] 337 | s32 sxe_hw_nic_reset(struct sxe_hw *hw) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:337:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 337 | s32 sxe_hw_nic_reset(struct sxe_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:367:6: error: no previous prototype for function 'sxe_hw_pf_rst_done_set' [-Werror,-Wmissing-prototypes] 367 | void sxe_hw_pf_rst_done_set(struct sxe_hw *hw) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:367:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 367 | void sxe_hw_pf_rst_done_set(struct sxe_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:735:5: error: no previous prototype for function 'sxe_hw_pending_irq_read_clear' [-Werror,-Wmissing-prototypes] 735 | u32 sxe_hw_pending_irq_read_clear(struct sxe_hw *hw) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:735:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 735 | u32 sxe_hw_pending_irq_read_clear(struct sxe_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:740:6: error: no previous prototype for function 'sxe_hw_pending_irq_write_clear' [-Werror,-Wmissing-prototypes] 740 | void sxe_hw_pending_irq_write_clear(struct sxe_hw *hw, u32 value) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:740:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 740 | void sxe_hw_pending_irq_write_clear(struct sxe_hw *hw, u32 value) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:745:5: error: no previous prototype for function 'sxe_hw_irq_cause_get' [-Werror,-Wmissing-prototypes] 745 | u32 sxe_hw_irq_cause_get(struct sxe_hw *hw) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:745:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 745 | u32 sxe_hw_irq_cause_get(struct sxe_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:765:6: error: no previous prototype for function 'sxe_hw_ring_irq_auto_disable' [-Werror,-Wmissing-prototypes] 765 | void sxe_hw_ring_irq_auto_disable(struct sxe_hw *hw, bool is_msix) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:765:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 765 | void sxe_hw_ring_irq_auto_disable(struct sxe_hw *hw, bool is_msix) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:775:6: error: no previous prototype for function 'sxe_hw_irq_general_reg_set' [-Werror,-Wmissing-prototypes] 775 | void sxe_hw_irq_general_reg_set(struct sxe_hw *hw, u32 value) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:775:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 775 | void sxe_hw_irq_general_reg_set(struct sxe_hw *hw, u32 value) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:780:5: error: no previous prototype for function 'sxe_hw_irq_general_reg_get' [-Werror,-Wmissing-prototypes] 780 | u32 sxe_hw_irq_general_reg_get(struct sxe_hw *hw) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:780:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 780 | u32 sxe_hw_irq_general_reg_get(struct sxe_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:790:6: error: no previous prototype for function 'sxe_hw_event_irq_map' [-Werror,-Wmissing-prototypes] 790 | void sxe_hw_event_irq_map(struct sxe_hw *hw, u8 offset, u16 irq_idx) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:790:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 790 | void sxe_hw_event_irq_map(struct sxe_hw *hw, u8 offset, u16 irq_idx) | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:806:6: error: no previous prototype for function 'sxe_hw_ring_irq_map' [-Werror,-Wmissing-prototypes] 806 | void sxe_hw_ring_irq_map(struct sxe_hw *hw, bool is_tx, u16 reg_idx, | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:806:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 806 | void sxe_hw_ring_irq_map(struct sxe_hw *hw, bool is_tx, u16 reg_idx, | ^ | static drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:823:6: error: no previous prototype for function 'sxe_hw_ring_irq_interval_set' [-Werror,-Wmissing-prototypes] 823 | void sxe_hw_ring_irq_interval_set(struct sxe_hw *hw, u16 irq_idx, u32 interval) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:823:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 823 | void sxe_hw_ring_irq_interval_set(struct sxe_hw *hw, u16 irq_idx, u32 interval) | ^ | static >> drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:838:6: error: no previous prototype for function 'sxe_hw_event_irq_auto_clear_set' [-Werror,-Wmissing-prototypes] 838 | void sxe_hw_event_irq_auto_clear_set(struct sxe_hw *hw, u32 value) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:838:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 838 | void sxe_hw_event_irq_auto_clear_set(struct sxe_hw *hw, u32 value) | ^ | static >> drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:843:6: error: no previous prototype for function 'sxe_hw_specific_irq_disable' [-Werror,-Wmissing-prototypes] 843 | void sxe_hw_specific_irq_disable(struct sxe_hw *hw, u32 value) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:843:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 843 | void sxe_hw_specific_irq_disable(struct sxe_hw *hw, u32 value) | ^ | static >> drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:848:6: error: no previous prototype for function 'sxe_hw_specific_irq_enable' [-Werror,-Wmissing-prototypes] 848 | void sxe_hw_specific_irq_enable(struct sxe_hw *hw, u32 value) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:848:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 848 | void sxe_hw_specific_irq_enable(struct sxe_hw *hw, u32 value) | ^ | static >> drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:876:6: error: no previous prototype for function 'sxe_hw_all_irq_disable' [-Werror,-Wmissing-prototypes] 876 | void sxe_hw_all_irq_disable(struct sxe_hw *hw) | ^ drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c:876:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 876 | void sxe_hw_all_irq_disable(struct sxe_hw *hw) | ^ | static fatal error: too many errors emitted, stopping now [-ferror-limit=] 20 errors generated. -- 367 | #define __SANITIZE_ADDRESS__ 1 | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:160:6: error: no previous prototype for function 'sxevf_hw_stop' [-Werror,-Wmissing-prototypes] 160 | void sxevf_hw_stop(struct sxevf_hw *hw) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:160:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 160 | void sxevf_hw_stop(struct sxevf_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:187:6: error: no previous prototype for function 'sxevf_msg_write' [-Werror,-Wmissing-prototypes] 187 | void sxevf_msg_write(struct sxevf_hw *hw, u8 index, u32 msg) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:187:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 187 | void sxevf_msg_write(struct sxevf_hw *hw, u8 index, u32 msg) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:196:5: error: no previous prototype for function 'sxevf_msg_read' [-Werror,-Wmissing-prototypes] 196 | u32 sxevf_msg_read(struct sxevf_hw *hw, u8 index) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:196:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 196 | u32 sxevf_msg_read(struct sxevf_hw *hw, u8 index) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:206:5: error: no previous prototype for function 'sxevf_mailbox_read' [-Werror,-Wmissing-prototypes] 206 | u32 sxevf_mailbox_read(struct sxevf_hw *hw) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:206:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 206 | u32 sxevf_mailbox_read(struct sxevf_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:211:6: error: no previous prototype for function 'sxevf_mailbox_write' [-Werror,-Wmissing-prototypes] 211 | void sxevf_mailbox_write(struct sxevf_hw *hw, u32 value) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:211:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 211 | void sxevf_mailbox_write(struct sxevf_hw *hw, u32 value) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:216:6: error: no previous prototype for function 'sxevf_pf_req_irq_trigger' [-Werror,-Wmissing-prototypes] 216 | void sxevf_pf_req_irq_trigger(struct sxevf_hw *hw) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:216:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 216 | void sxevf_pf_req_irq_trigger(struct sxevf_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:221:6: error: no previous prototype for function 'sxevf_pf_ack_irq_trigger' [-Werror,-Wmissing-prototypes] 221 | void sxevf_pf_ack_irq_trigger(struct sxevf_hw *hw) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:221:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 221 | void sxevf_pf_ack_irq_trigger(struct sxevf_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:226:6: error: no previous prototype for function 'sxevf_event_irq_map' [-Werror,-Wmissing-prototypes] 226 | void sxevf_event_irq_map(struct sxevf_hw *hw, u16 vector) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:226:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 226 | void sxevf_event_irq_map(struct sxevf_hw *hw, u16 vector) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:240:6: error: no previous prototype for function 'sxevf_specific_irq_enable' [-Werror,-Wmissing-prototypes] 240 | void sxevf_specific_irq_enable(struct sxevf_hw *hw, u32 value) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:240:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 240 | void sxevf_specific_irq_enable(struct sxevf_hw *hw, u32 value) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:245:6: error: no previous prototype for function 'sxevf_irq_enable' [-Werror,-Wmissing-prototypes] 245 | void sxevf_irq_enable(struct sxevf_hw *hw, u32 mask) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:245:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 245 | void sxevf_irq_enable(struct sxevf_hw *hw, u32 mask) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:251:6: error: no previous prototype for function 'sxevf_irq_disable' [-Werror,-Wmissing-prototypes] 251 | void sxevf_irq_disable(struct sxevf_hw *hw) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:251:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 251 | void sxevf_irq_disable(struct sxevf_hw *hw) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:259:6: error: no previous prototype for function 'sxevf_hw_ring_irq_map' [-Werror,-Wmissing-prototypes] 259 | void sxevf_hw_ring_irq_map(struct sxevf_hw *hw, bool is_tx, u16 hw_ring_idx, | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:259:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 259 | void sxevf_hw_ring_irq_map(struct sxevf_hw *hw, bool is_tx, u16 hw_ring_idx, | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:276:6: error: no previous prototype for function 'sxevf_ring_irq_interval_set' [-Werror,-Wmissing-prototypes] 276 | void sxevf_ring_irq_interval_set(struct sxevf_hw *hw, u16 irq_idx, u32 interval) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:276:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 276 | void sxevf_ring_irq_interval_set(struct sxevf_hw *hw, u16 irq_idx, u32 interval) | ^ | static drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:313:6: error: no previous prototype for function 'sxevf_hw_reset' [-Werror,-Wmissing-prototypes] 313 | void sxevf_hw_reset(struct sxevf_hw *hw) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:313:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 313 | void sxevf_hw_reset(struct sxevf_hw *hw) | ^ | static >> drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:324:5: error: no previous prototype for function 'sxevf_link_state_get' [-Werror,-Wmissing-prototypes] 324 | u32 sxevf_link_state_get(struct sxevf_hw *hw) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:324:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 324 | u32 sxevf_link_state_get(struct sxevf_hw *hw) | ^ | static >> drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:539:6: error: no previous prototype for function 'sxevf_tx_ring_switch' [-Werror,-Wmissing-prototypes] 539 | void sxevf_tx_ring_switch(struct sxevf_hw *hw, u8 reg_idx, bool is_on) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:539:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 539 | void sxevf_tx_ring_switch(struct sxevf_hw *hw, u8 reg_idx, bool is_on) | ^ | static >> drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:594:6: error: no previous prototype for function 'sxevf_rx_ring_switch' [-Werror,-Wmissing-prototypes] 594 | void sxevf_rx_ring_switch(struct sxevf_hw *hw, u8 reg_idx, bool is_on) | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:594:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 594 | void sxevf_rx_ring_switch(struct sxevf_hw *hw, u8 reg_idx, bool is_on) | ^ | static >> drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:626:6: error: no previous prototype for function 'sxevf_rx_ring_desc_configure' [-Werror,-Wmissing-prototypes] 626 | void sxevf_rx_ring_desc_configure(struct sxevf_hw *hw, u32 desc_mem_len, | ^ drivers/net/ethernet/linkdata/sxevf/sxevf/sxevf_hw.c:626:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 626 | void sxevf_rx_ring_desc_configure(struct sxevf_hw *hw, u32 desc_mem_len, | ^ | static fatal error: too many errors emitted, stopping now [-ferror-limit=] 20 errors generated. vim +/sxe_hw_event_irq_auto_clear_set +838 drivers/net/ethernet/linkdata/sxe/sxepf/sxe_hw.c dd013ad487534c liujie_answer 2025-04-15 837 dd013ad487534c liujie_answer 2025-04-15 @838 void sxe_hw_event_irq_auto_clear_set(struct sxe_hw *hw, u32 value) dd013ad487534c liujie_answer 2025-04-15 839 { dd013ad487534c liujie_answer 2025-04-15 840 SXE_REG_WRITE(hw, SXE_EIAC, value); dd013ad487534c liujie_answer 2025-04-15 841 } dd013ad487534c liujie_answer 2025-04-15 842 dd013ad487534c liujie_answer 2025-04-15 @843 void sxe_hw_specific_irq_disable(struct sxe_hw *hw, u32 value) dd013ad487534c liujie_answer 2025-04-15 844 { dd013ad487534c liujie_answer 2025-04-15 845 SXE_REG_WRITE(hw, SXE_EIMC, value); dd013ad487534c liujie_answer 2025-04-15 846 } dd013ad487534c liujie_answer 2025-04-15 847 dd013ad487534c liujie_answer 2025-04-15 @848 void sxe_hw_specific_irq_enable(struct sxe_hw *hw, u32 value) dd013ad487534c liujie_answer 2025-04-15 849 { dd013ad487534c liujie_answer 2025-04-15 850 SXE_REG_WRITE(hw, SXE_EIMS, value); dd013ad487534c liujie_answer 2025-04-15 851 } dd013ad487534c liujie_answer 2025-04-15 852 dd013ad487534c liujie_answer 2025-04-15 853 static u32 sxe_hw_spp_state_get(struct sxe_hw *hw) dd013ad487534c liujie_answer 2025-04-15 854 { dd013ad487534c liujie_answer 2025-04-15 855 return SXE_REG_READ(hw, SXE_SPP_STATE); dd013ad487534c liujie_answer 2025-04-15 856 } dd013ad487534c liujie_answer 2025-04-15 857 dd013ad487534c liujie_answer 2025-04-15 858 static void sxe_hw_rx_los_disable(struct sxe_hw *hw) dd013ad487534c liujie_answer 2025-04-15 859 { dd013ad487534c liujie_answer 2025-04-15 860 u32 value; dd013ad487534c liujie_answer 2025-04-15 861 dd013ad487534c liujie_answer 2025-04-15 862 value = SXE_REG_READ(hw, SXE_EIMS); dd013ad487534c liujie_answer 2025-04-15 863 value &= ~SXE_EIMS_GPI_SPP1; dd013ad487534c liujie_answer 2025-04-15 864 SXE_REG_WRITE(hw, SXE_EIMS, value); dd013ad487534c liujie_answer 2025-04-15 865 } dd013ad487534c liujie_answer 2025-04-15 866 dd013ad487534c liujie_answer 2025-04-15 867 static void sxe_hw_rx_los_enable(struct sxe_hw *hw) dd013ad487534c liujie_answer 2025-04-15 868 { dd013ad487534c liujie_answer 2025-04-15 869 u32 value; dd013ad487534c liujie_answer 2025-04-15 870 dd013ad487534c liujie_answer 2025-04-15 871 value = SXE_REG_READ(hw, SXE_EIMS); dd013ad487534c liujie_answer 2025-04-15 872 value |= SXE_EIMS_GPI_SPP1; dd013ad487534c liujie_answer 2025-04-15 873 SXE_REG_WRITE(hw, SXE_EIMS, value); dd013ad487534c liujie_answer 2025-04-15 874 } dd013ad487534c liujie_answer 2025-04-15 875 dd013ad487534c liujie_answer 2025-04-15 @876 void sxe_hw_all_irq_disable(struct sxe_hw *hw) dd013ad487534c liujie_answer 2025-04-15 877 { dd013ad487534c liujie_answer 2025-04-15 878 SXE_REG_WRITE(hw, SXE_EIMC, 0xFFFF0000); dd013ad487534c liujie_answer 2025-04-15 879 dd013ad487534c liujie_answer 2025-04-15 880 SXE_REG_WRITE(hw, SXE_EIMC_EX(0), ~0); dd013ad487534c liujie_answer 2025-04-15 881 SXE_REG_WRITE(hw, SXE_EIMC_EX(1), ~0); dd013ad487534c liujie_answer 2025-04-15 882 dd013ad487534c liujie_answer 2025-04-15 883 SXE_WRITE_FLUSH(hw); dd013ad487534c liujie_answer 2025-04-15 884 } dd013ad487534c liujie_answer 2025-04-15 885 :::::: The code at line 838 was first introduced by commit :::::: dd013ad487534c1838afc2f55efdb5daec15aace Ethernet: Linkdata: Supports Linkdata ethernet Controllers :::::: TO: liujie_answer <liujie5(a)linkdatatechnology.com> :::::: CC: liujie_answer <liujie5(a)linkdatatechnology.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 3386/3386] drivers/cpufreq/intel_pstate.c:1473:6: warning: no previous prototype for 'notify_hwp_interrupt'
by kernel test robot 09 Dec '25

09 Dec '25

Hi Srinivas, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 69d9543977fd7abe8b555406c7a3e5d64d8292f8 commit: e217d5958ee378eb304fb0b4eb6fcb551e555842 [3386/3386] cpufreq: intel_pstate: Process HWP Guaranteed change notification config: x86_64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251209/202512090137.yqEfvu43-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251209/202512090137.yqEfvu43-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/202512090137.yqEfvu43-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/cpufreq/intel_pstate.c:1473:6: warning: no previous prototype for 'notify_hwp_interrupt' [-Wmissing-prototypes] 1473 | void notify_hwp_interrupt(void) | ^~~~~~~~~~~~~~~~~~~~ vim +/notify_hwp_interrupt +1473 drivers/cpufreq/intel_pstate.c 1472 > 1473 void notify_hwp_interrupt(void) 1474 { 1475 unsigned int this_cpu = smp_processor_id(); 1476 struct cpudata *cpudata; 1477 unsigned long flags; 1478 u64 value; 1479 1480 if (!READ_ONCE(hwp_active) || !boot_cpu_has(X86_FEATURE_HWP_NOTIFY)) 1481 return; 1482 1483 rdmsrl_safe(MSR_HWP_STATUS, &value); 1484 if (!(value & 0x01)) 1485 return; 1486 1487 spin_lock_irqsave(&hwp_notify_lock, flags); 1488 1489 if (!cpumask_test_cpu(this_cpu, &hwp_intr_enable_mask)) 1490 goto ack_intr; 1491 1492 /* 1493 * Currently we never free all_cpu_data. And we can't reach here 1494 * without this allocated. But for safety for future changes, added 1495 * check. 1496 */ 1497 if (unlikely(!READ_ONCE(all_cpu_data))) 1498 goto ack_intr; 1499 1500 /* 1501 * The free is done during cleanup, when cpufreq registry is failed. 1502 * We wouldn't be here if it fails on init or switch status. But for 1503 * future changes, added check. 1504 */ 1505 cpudata = READ_ONCE(all_cpu_data[this_cpu]); 1506 if (unlikely(!cpudata)) 1507 goto ack_intr; 1508 1509 schedule_delayed_work(&cpudata->hwp_notify_work, msecs_to_jiffies(10)); 1510 1511 spin_unlock_irqrestore(&hwp_notify_lock, flags); 1512 1513 return; 1514 1515 ack_intr: 1516 wrmsrl_safe(MSR_HWP_STATUS, 0); 1517 spin_unlock_irqrestore(&hwp_notify_lock, flags); 1518 } 1519 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3493/3493] mm/gmem_phys.c:345:19: warning: no previous prototype for 'gm_evict_page'
by kernel test robot 09 Dec '25

09 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 36141432a37f7dedddde8825e724b07ce3a440fb commit: 8f4f66a9d851f366942e8ee319292e41ad2baa95 [3493/3493] gmem: support swapping heterogeneous memory config: x86_64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251209/202512090139.MlPNvch8-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251209/202512090139.MlPNvch8-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/202512090139.MlPNvch8-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/gmem_phys.c:245:19: warning: no previous prototype for 'gm_evict_page_locked' [-Wmissing-prototypes] 245 | enum gm_evict_ret gm_evict_page_locked(struct gm_page *gm_page) | ^~~~~~~~~~~~~~~~~~~~ >> mm/gmem_phys.c:345:19: warning: no previous prototype for 'gm_evict_page' [-Wmissing-prototypes] 345 | enum gm_evict_ret gm_evict_page(struct gm_page *gm_page) | ^~~~~~~~~~~~~ vim +/gm_evict_page +345 mm/gmem_phys.c 344 > 345 enum gm_evict_ret gm_evict_page(struct gm_page *gm_page) 346 { 347 struct mm_struct *mm = gm_page->mm; 348 enum gm_evict_ret ret; 349 350 mmap_read_lock(mm); 351 ret = gm_evict_page_locked(gm_page); 352 mmap_read_unlock(mm); 353 return ret; 354 } 355 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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