Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - "panic: sys_info: Refactor and fix a potential issue" (Andy Shevchenko)
   fixes a build issue and does some cleanup in ib/sys_info.c

 - "Implement mul_u64_u64_div_u64_roundup()" (David Laight)
   enhances the 64-bit math code on behalf of a PWM driver and beefs up
   the test module for these library functions

 - "scripts/gdb/symbols: make BPF debug info available to GDB" (Ilya Leoshkevich)
   makes BPF symbol names, sizes, and line numbers available to the GDB
   debugger

 - "Enable hung_task and lockup cases to dump system info on demand" (Feng Tang)
   adds a sysctl which can be used to cause additional info dumping when
   the hung-task and lockup detectors fire

 - "lib/base64: add generic encoder/decoder, migrate users" (Kuan-Wei Chiu)
   adds a general base64 encoder/decoder to lib/ and migrates several
   users away from their private implementations

 - "rbree: inline rb_first() and rb_last()" (Eric Dumazet)
   makes TCP a little faster

 - "liveupdate: Rework KHO for in-kernel users" (Pasha Tatashin)
   reworks the KEXEC Handover interfaces in preparation for Live Update
   Orchestrator (LUO), and possibly for other future clients

 - "kho: simplify state machine and enable dynamic updates" (Pasha Tatashin)
   increases the flexibility of KEXEC Handover. Also preparation for LUO

 - "Live Update Orchestrator" (Pasha Tatashin)
   is a major new feature targeted at cloud environments. Quoting the
   cover letter:

      This series introduces the Live Update Orchestrator, a kernel
      subsystem designed to facilitate live kernel updates using a
      kexec-based reboot. This capability is critical for cloud
      environments, allowing hypervisors to be updated with minimal
      downtime for running virtual machines. LUO achieves this by
      preserving the state of selected resources, such as memory,
      devices and their dependencies, across the kernel transition.

      As a key feature, this series includes support for preserving
      memfd file descriptors, which allows critical in-memory data, such
      as guest RAM or any other large memory region, to be maintained in
      RAM across the kexec reboot.

   Mike Rappaport merits a mention here, for his extensive review and
   testing work.

 - "kexec: reorganize kexec and kdump sysfs" (Sourabh Jain)
   moves the kexec and kdump sysfs entries from /sys/kernel/ to
   /sys/kernel/kexec/ and adds back-compatibility symlinks which can
   hopefully be removed one day

 - "kho: fixes for vmalloc restoration" (Mike Rapoport)
   fixes a BUG which was being hit during KHO restoration of vmalloc()
   regions

* tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (139 commits)
  calibrate: update header inclusion
  Reinstate "resource: avoid unnecessary lookups in find_next_iomem_res()"
  vmcoreinfo: track and log recoverable hardware errors
  kho: fix restoring of contiguous ranges of order-0 pages
  kho: kho_restore_vmalloc: fix initialization of pages array
  MAINTAINERS: TPM DEVICE DRIVER: update the W-tag
  init: replace simple_strtoul with kstrtoul to improve lpj_setup
  KHO: fix boot failure due to kmemleak access to non-PRESENT pages
  Documentation/ABI: new kexec and kdump sysfs interface
  Documentation/ABI: mark old kexec sysfs deprecated
  kexec: move sysfs entries to /sys/kernel/kexec
  test_kho: always print restore status
  kho: free chunks using free_page() instead of kfree()
  selftests/liveupdate: add kexec test for multiple and empty sessions
  selftests/liveupdate: add simple kexec-based selftest for LUO
  selftests/liveupdate: add userspace API selftests
  docs: add documentation for memfd preservation via LUO
  mm: memfd_luo: allow preserving memfd
  liveupdate: luo_file: add private argument to store runtime state
  mm: shmem: export some functions to internal.h
  ...

34 files changed, 34 insertions, 34 deletions

diff --git a/tools/testing/selftests/net/af_unix/diag_uid.c b/tools/testing/selftests/net/af_unix/diag_uid.c
index 79a3dd75590e..da7d50cedee6 100644
--- a/tools/testing/selftests/net/af_unix/diag_uid.c
+++ b/tools/testing/selftests/net/af_unix/diag_uid.c
@@ -14,7 +14,7 @@
 #include <sys/types.h>
 #include <sys/un.h>
 
-#include "../../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 FIXTURE(diag_uid)
 {
diff --git a/tools/testing/selftests/net/af_unix/msg_oob.c b/tools/testing/selftests/net/af_unix/msg_oob.c
index b5f474969917..1b499d56656c 100644
--- a/tools/testing/selftests/net/af_unix/msg_oob.c
+++ b/tools/testing/selftests/net/af_unix/msg_oob.c
@@ -11,7 +11,7 @@
 #include <sys/signalfd.h>
 #include <sys/socket.h>
 
-#include "../../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #define BUF_SZ	32
 
diff --git a/tools/testing/selftests/net/af_unix/scm_inq.c b/tools/testing/selftests/net/af_unix/scm_inq.c
index fc467714387e..3a86be9bda17 100644
--- a/tools/testing/selftests/net/af_unix/scm_inq.c
+++ b/tools/testing/selftests/net/af_unix/scm_inq.c
@@ -6,7 +6,7 @@
 #include <sys/socket.h>
 #include <sys/types.h>
 
-#include "../../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #define NR_CHUNKS	100
 #define MSG_LEN		256
diff --git a/tools/testing/selftests/net/af_unix/scm_pidfd.c b/tools/testing/selftests/net/af_unix/scm_pidfd.c
index ef2921988e5f..2c18b92a2603 100644
--- a/tools/testing/selftests/net/af_unix/scm_pidfd.c
+++ b/tools/testing/selftests/net/af_unix/scm_pidfd.c
@@ -16,7 +16,7 @@
 #include <sys/wait.h>
 
 #include "../../pidfd/pidfd.h"
-#include "../../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #define clean_errno() (errno == 0 ? "None" : strerror(errno))
 #define log_err(MSG, ...)                                                   \
diff --git a/tools/testing/selftests/net/af_unix/scm_rights.c b/tools/testing/selftests/net/af_unix/scm_rights.c
index 914f99d153ce..d82a79c21c17 100644
--- a/tools/testing/selftests/net/af_unix/scm_rights.c
+++ b/tools/testing/selftests/net/af_unix/scm_rights.c
@@ -10,7 +10,7 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 
-#include "../../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 FIXTURE(scm_rights)
 {
diff --git a/tools/testing/selftests/net/af_unix/unix_connect.c b/tools/testing/selftests/net/af_unix/unix_connect.c
index d799fd8f5c7c..870ca96fa8ea 100644
--- a/tools/testing/selftests/net/af_unix/unix_connect.c
+++ b/tools/testing/selftests/net/af_unix/unix_connect.c
@@ -10,7 +10,7 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 
-#include "../../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 FIXTURE(unix_connect)
 {
diff --git a/tools/testing/selftests/net/bind_timewait.c b/tools/testing/selftests/net/bind_timewait.c
index cb9fdf51ea59..40126f9b901e 100644
--- a/tools/testing/selftests/net/bind_timewait.c
+++ b/tools/testing/selftests/net/bind_timewait.c
@@ -4,7 +4,7 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 FIXTURE(bind_timewait)
 {
diff --git a/tools/testing/selftests/net/bind_wildcard.c b/tools/testing/selftests/net/bind_wildcard.c
index b7b54d646b93..7d11548b2c61 100644
--- a/tools/testing/selftests/net/bind_wildcard.c
+++ b/tools/testing/selftests/net/bind_wildcard.c
@@ -4,7 +4,7 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 static const __u32 in4addr_any = INADDR_ANY;
 static const __u32 in4addr_loopback = INADDR_LOOPBACK;
diff --git a/tools/testing/selftests/net/can/test_raw_filter.c b/tools/testing/selftests/net/can/test_raw_filter.c
index 4101c36390fd..bb8ae8854273 100644
--- a/tools/testing/selftests/net/can/test_raw_filter.c
+++ b/tools/testing/selftests/net/can/test_raw_filter.c
@@ -19,7 +19,7 @@
 #include <linux/can.h>
 #include <linux/can/raw.h>
 
-#include "../../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #define ID 0x123
 
diff --git a/tools/testing/selftests/net/cmsg_sender.c b/tools/testing/selftests/net/cmsg_sender.c
index ded9b925865e..67a72b1a2f3d 100644
--- a/tools/testing/selftests/net/cmsg_sender.c
+++ b/tools/testing/selftests/net/cmsg_sender.c
@@ -16,7 +16,7 @@
 #include <linux/udp.h>
 #include <sys/socket.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 enum {
 	ERN_SUCCESS = 0,
diff --git a/tools/testing/selftests/net/epoll_busy_poll.c b/tools/testing/selftests/net/epoll_busy_poll.c
index 16e457c2f877..adf8dd0b5e0b 100644
--- a/tools/testing/selftests/net/epoll_busy_poll.c
+++ b/tools/testing/selftests/net/epoll_busy_poll.c
@@ -23,7 +23,7 @@
 #include <sys/ioctl.h>
 #include <sys/socket.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 /* if the headers haven't been updated, we need to define some things */
 #if !defined(EPOLL_IOC_TYPE)
diff --git a/tools/testing/selftests/net/ip_local_port_range.c b/tools/testing/selftests/net/ip_local_port_range.c
index 29451d2244b7..e6834a6cfc8f 100644
--- a/tools/testing/selftests/net/ip_local_port_range.c
+++ b/tools/testing/selftests/net/ip_local_port_range.c
@@ -10,7 +10,7 @@
 #include <fcntl.h>
 #include <netinet/ip.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #ifndef IP_LOCAL_PORT_RANGE
 #define IP_LOCAL_PORT_RANGE 51
diff --git a/tools/testing/selftests/net/ipsec.c b/tools/testing/selftests/net/ipsec.c
index 9b44a091802c..0ccf484b1d9d 100644
--- a/tools/testing/selftests/net/ipsec.c
+++ b/tools/testing/selftests/net/ipsec.c
@@ -34,7 +34,7 @@
 #include <time.h>
 #include <unistd.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 #define printk(fmt, ...)						\
 	ksft_print_msg("%d[%u] " fmt "\n", getpid(), __LINE__, ##__VA_ARGS__)
diff --git a/tools/testing/selftests/net/ipv6_fragmentation.c b/tools/testing/selftests/net/ipv6_fragmentation.c
index 267ef62b5c72..672c9fe086a7 100644
--- a/tools/testing/selftests/net/ipv6_fragmentation.c
+++ b/tools/testing/selftests/net/ipv6_fragmentation.c
@@ -34,7 +34,7 @@
 #include <sys/ioctl.h>
 #include <sys/socket.h>
 #include <unistd.h>
-#include "../kselftest.h"
+#include "kselftest.h"
 
 #define MTU 1500
 #define LARGER_THAN_MTU 8192
diff --git a/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c b/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c
index 5f827e10717d..5cecb8a1bc94 100644
--- a/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c
+++ b/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c
@@ -10,7 +10,7 @@
 #include <linux/netfilter/nfnetlink.h>
 #include <linux/netfilter/nfnetlink_conntrack.h>
 #include <linux/netfilter/nf_conntrack_tcp.h>
-#include "../../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #define TEST_ZONE_ID 123
 #define NF_CT_DEFAULT_ZONE_ID 0
diff --git a/tools/testing/selftests/net/netlink-dumps.c b/tools/testing/selftests/net/netlink-dumps.c
index 679b6c77ace7..51129c564d0a 100644
--- a/tools/testing/selftests/net/netlink-dumps.c
+++ b/tools/testing/selftests/net/netlink-dumps.c
@@ -18,7 +18,7 @@
 #include <linux/mqueue.h>
 #include <linux/rtnetlink.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #include <ynl.h>
 
diff --git a/tools/testing/selftests/net/ovpn/ovpn-cli.c b/tools/testing/selftests/net/ovpn/ovpn-cli.c
index 0a5226196a2e..0f3babf19fd0 100644
--- a/tools/testing/selftests/net/ovpn/ovpn-cli.c
+++ b/tools/testing/selftests/net/ovpn/ovpn-cli.c
@@ -32,7 +32,7 @@
 
 #include <sys/socket.h>
 
-#include "../../kselftest.h"
+#include "kselftest.h"
 
 /* defines to make checkpatch happy */
 #define strscpy strncpy
diff --git a/tools/testing/selftests/net/proc_net_pktgen.c b/tools/testing/selftests/net/proc_net_pktgen.c
index 69444fb29577..fab3b5c2e25d 100644
--- a/tools/testing/selftests/net/proc_net_pktgen.c
+++ b/tools/testing/selftests/net/proc_net_pktgen.c
@@ -10,7 +10,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 static const char ctrl_cmd_stop[] = "stop";
 static const char ctrl_cmd_start[] = "start";
diff --git a/tools/testing/selftests/net/psock_fanout.c b/tools/testing/selftests/net/psock_fanout.c
index 84c524357075..ab8d8b7e6cb0 100644
--- a/tools/testing/selftests/net/psock_fanout.c
+++ b/tools/testing/selftests/net/psock_fanout.c
@@ -54,7 +54,7 @@
 #include <unistd.h>
 
 #include "psock_lib.h"
-#include "../kselftest.h"
+#include "kselftest.h"
 
 #define RING_NUM_FRAMES			20
 
diff --git a/tools/testing/selftests/net/psock_tpacket.c b/tools/testing/selftests/net/psock_tpacket.c
index 2938045c5cf9..7caf3135448d 100644
--- a/tools/testing/selftests/net/psock_tpacket.c
+++ b/tools/testing/selftests/net/psock_tpacket.c
@@ -46,7 +46,7 @@
 
 #include "psock_lib.h"
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 #ifndef bug_on
 # define bug_on(cond)		assert(!(cond))
diff --git a/tools/testing/selftests/net/reuseaddr_ports_exhausted.c b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
index 7b9bf8a7bbe1..5aad27a0d13a 100644
--- a/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
+++ b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
@@ -22,7 +22,7 @@
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <unistd.h>
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 struct reuse_opts {
 	int reuseaddr[2];
diff --git a/tools/testing/selftests/net/reuseport_bpf.c b/tools/testing/selftests/net/reuseport_bpf.c
index 65aea27d761c..b6634d6da3d6 100644
--- a/tools/testing/selftests/net/reuseport_bpf.c
+++ b/tools/testing/selftests/net/reuseport_bpf.c
@@ -24,7 +24,7 @@
 #include <sys/resource.h>
 #include <unistd.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 struct test_params {
 	int recv_family;
diff --git a/tools/testing/selftests/net/reuseport_bpf_numa.c b/tools/testing/selftests/net/reuseport_bpf_numa.c
index c9ba36aa688e..2ffd957ffb15 100644
--- a/tools/testing/selftests/net/reuseport_bpf_numa.c
+++ b/tools/testing/selftests/net/reuseport_bpf_numa.c
@@ -23,7 +23,7 @@
 #include <unistd.h>
 #include <numa.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 static const int PORT = 8888;
 
diff --git a/tools/testing/selftests/net/rxtimestamp.c b/tools/testing/selftests/net/rxtimestamp.c
index 16ac4df55fdb..b81ed0352d6c 100644
--- a/tools/testing/selftests/net/rxtimestamp.c
+++ b/tools/testing/selftests/net/rxtimestamp.c
@@ -18,7 +18,7 @@
 #include <linux/net_tstamp.h>
 #include <linux/errqueue.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 struct options {
 	int so_timestamp;
diff --git a/tools/testing/selftests/net/sk_so_peek_off.c b/tools/testing/selftests/net/sk_so_peek_off.c
index d87dd8d8d491..2a3f5c604f52 100644
--- a/tools/testing/selftests/net/sk_so_peek_off.c
+++ b/tools/testing/selftests/net/sk_so_peek_off.c
@@ -8,7 +8,7 @@
 #include <sys/types.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
-#include "../kselftest.h"
+#include "kselftest.h"
 
 static char *afstr(int af, int proto)
 {
diff --git a/tools/testing/selftests/net/so_incoming_cpu.c b/tools/testing/selftests/net/so_incoming_cpu.c
index e9fa14e10732..4740701f1a9a 100644
--- a/tools/testing/selftests/net/so_incoming_cpu.c
+++ b/tools/testing/selftests/net/so_incoming_cpu.c
@@ -9,7 +9,7 @@
 #include <sys/socket.h>
 #include <sys/sysinfo.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 FIXTURE(so_incoming_cpu)
 {
diff --git a/tools/testing/selftests/net/socket.c b/tools/testing/selftests/net/socket.c
index be1080003c61..9e270548dad8 100644
--- a/tools/testing/selftests/net/socket.c
+++ b/tools/testing/selftests/net/socket.c
@@ -7,7 +7,7 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 struct socket_testcase {
 	int	domain;
diff --git a/tools/testing/selftests/net/tap.c b/tools/testing/selftests/net/tap.c
index 247c3b3ac1c9..9ec1c9b50e77 100644
--- a/tools/testing/selftests/net/tap.c
+++ b/tools/testing/selftests/net/tap.c
@@ -17,7 +17,7 @@
 #include <linux/virtio_net.h>
 #include <netinet/ip.h>
 #include <netinet/udp.h>
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 static const char param_dev_tap_name[] = "xmacvtap0";
 static const char param_dev_dummy_name[] = "xdummy0";
diff --git a/tools/testing/selftests/net/tcp_ao/lib/setup.c b/tools/testing/selftests/net/tcp_ao/lib/setup.c
index a27cc03c9fbd..49aec2922a31 100644
--- a/tools/testing/selftests/net/tcp_ao/lib/setup.c
+++ b/tools/testing/selftests/net/tcp_ao/lib/setup.c
@@ -9,7 +9,7 @@
  * Can't be included in the header: it defines static variables which
  * will be unique to every object. Let's include it only once here.
  */
-#include "../../../kselftest.h"
+#include "kselftest.h"
 
 /* Prevent overriding of one thread's output by another */
 static pthread_mutex_t ksft_print_lock = PTHREAD_MUTEX_INITIALIZER;
diff --git a/tools/testing/selftests/net/tcp_fastopen_backup_key.c b/tools/testing/selftests/net/tcp_fastopen_backup_key.c
index c1cb0c75156a..4b3f9b5e50fe 100644
--- a/tools/testing/selftests/net/tcp_fastopen_backup_key.c
+++ b/tools/testing/selftests/net/tcp_fastopen_backup_key.c
@@ -26,7 +26,7 @@
 #include <fcntl.h>
 #include <time.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 #ifndef TCP_FASTOPEN_KEY
 #define TCP_FASTOPEN_KEY 33
diff --git a/tools/testing/selftests/net/tcp_port_share.c b/tools/testing/selftests/net/tcp_port_share.c
index 4c39d599dfce..6146b62610df 100644
--- a/tools/testing/selftests/net/tcp_port_share.c
+++ b/tools/testing/selftests/net/tcp_port_share.c
@@ -10,7 +10,7 @@
 #include <sched.h>
 #include <stdlib.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #define DST_PORT 30000
 #define SRC_PORT 40000
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index da1b50b30719..a3ef4b57eb5f 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -21,7 +21,7 @@
 #include <sys/socket.h>
 #include <sys/stat.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 #define TLS_PAYLOAD_MAX_LEN 16384
 #define SOL_TLS 282
diff --git a/tools/testing/selftests/net/tun.c b/tools/testing/selftests/net/tun.c
index fa83918b62d1..0efc67b0357a 100644
--- a/tools/testing/selftests/net/tun.c
+++ b/tools/testing/selftests/net/tun.c
@@ -15,7 +15,7 @@
 #include <sys/ioctl.h>
 #include <sys/socket.h>
 
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
 
 static int tun_attach(int fd, char *dev)
 {
diff --git a/tools/testing/selftests/net/udpgso_bench_tx.c b/tools/testing/selftests/net/udpgso_bench_tx.c
index 477392715a9a..86d80cce55b4 100644
--- a/tools/testing/selftests/net/udpgso_bench_tx.c
+++ b/tools/testing/selftests/net/udpgso_bench_tx.c
@@ -25,7 +25,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 #ifndef ETH_MAX_MTU
 #define ETH_MAX_MTU 0xFFFFU