Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

drivers/net/ethernet/pensando/ionic/ionic_txrx.c
  d9c04209990b ("ionic: Mark error paths in the data path as unlikely")
  491aee894a08 ("ionic: fix kernel panic in XDP_TX action")

net/ipv6/ip6_fib.c
  b4cb4a1391dc ("net: use unrcu_pointer() helper")
  b01e1c030770 ("ipv6: fix possible race in __fib6_drop_pcpu_from()")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

16 files changed, 104 insertions, 25 deletions

diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
index 6584443144de..eaf091a3d331 100644
--- a/tools/testing/cxl/test/mem.c
+++ b/tools/testing/cxl/test/mem.c
@@ -3,6 +3,7 @@
 
 #include <linux/platform_device.h>
 #include <linux/mod_devicetable.h>
+#include <linux/vmalloc.h>
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/sizes.h>
diff --git a/tools/testing/selftests/alsa/Makefile b/tools/testing/selftests/alsa/Makefile
index 5af9ba8a4645..c1ce39874e2b 100644
--- a/tools/testing/selftests/alsa/Makefile
+++ b/tools/testing/selftests/alsa/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 #
 
-CFLAGS += $(shell pkg-config --cflags alsa)
+CFLAGS += $(shell pkg-config --cflags alsa) $(KHDR_INCLUDES)
 LDLIBS += $(shell pkg-config --libs alsa)
 ifeq ($(LDLIBS),)
 LDLIBS += -lasound
diff --git a/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c b/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c
index 02e718f06e0f..40531e56776e 100644
--- a/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c
+++ b/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c
@@ -84,7 +84,7 @@ int BPF_PROG(trace_tcp_connect, struct sock *sk)
 }
 
 SEC("fexit/inet_csk_accept")
-int BPF_PROG(inet_csk_accept, struct sock *sk, int flags, int *err, bool kern,
+int BPF_PROG(inet_csk_accept, struct sock *sk, struct proto_accept_arg *arg,
 	     struct sock *accepted_sk)
 {
 	set_task_info(accepted_sk);
diff --git a/tools/testing/selftests/cachestat/test_cachestat.c b/tools/testing/selftests/cachestat/test_cachestat.c
index b171fd53b004..632ab44737ec 100644
--- a/tools/testing/selftests/cachestat/test_cachestat.c
+++ b/tools/testing/selftests/cachestat/test_cachestat.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__ // Use ll64
 
 #include <stdio.h>
 #include <stdbool.h>
diff --git a/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c b/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
index 759f86e7d263..2862aae58b79 100644
--- a/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
+++ b/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__ // Use ll64
 
 #include <inttypes.h>
 #include <unistd.h>
diff --git a/tools/testing/selftests/ftrace/config b/tools/testing/selftests/ftrace/config
index e59d985eeff0..048a312abf40 100644
--- a/tools/testing/selftests/ftrace/config
+++ b/tools/testing/selftests/ftrace/config
@@ -1,16 +1,28 @@
-CONFIG_KPROBES=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_EPROBE_EVENTS=y
+CONFIG_FPROBE=y
+CONFIG_FPROBE_EVENTS=y
 CONFIG_FTRACE=y
+CONFIG_FTRACE_SYSCALLS=y
+CONFIG_FUNCTION_GRAPH_RETVAL=y
 CONFIG_FUNCTION_PROFILER=y
-CONFIG_TRACER_SNAPSHOT=y
-CONFIG_STACK_TRACER=y
 CONFIG_HIST_TRIGGERS=y
-CONFIG_SCHED_TRACER=y
-CONFIG_PREEMPT_TRACER=y
 CONFIG_IRQSOFF_TRACER=y
-CONFIG_PREEMPTIRQ_DELAY_TEST=m
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KPROBES=y
+CONFIG_KPROBE_EVENTS=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
+CONFIG_PREEMPTIRQ_DELAY_TEST=m
+CONFIG_PREEMPT_TRACER=y
+CONFIG_PROBE_EVENTS_BTF_ARGS=y
 CONFIG_SAMPLES=y
 CONFIG_SAMPLE_FTRACE_DIRECT=m
 CONFIG_SAMPLE_TRACE_PRINTK=m
-CONFIG_KALLSYMS_ALL=y
+CONFIG_SCHED_TRACER=y
+CONFIG_STACK_TRACER=y
+CONFIG_TRACER_SNAPSHOT=y
+CONFIG_UPROBES=y
+CONFIG_UPROBE_EVENTS=y
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
index d3a79da215c8..5f72abe6fa79 100644
--- a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
@@ -1,7 +1,7 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 # description: Generic dynamic event - check if duplicate events are caught
-# requires: dynamic_events "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README
+# requires: dynamic_events "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README events/syscalls/sys_enter_openat
 
 echo 0 > events/enable
 
diff --git a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
index 3f74c09c56b6..118247b8dd84 100644
--- a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
+++ b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
@@ -10,7 +10,6 @@ fail() { #msg
 }
 
 sample_events() {
-    echo > trace
     echo 1 > events/kmem/kmem_cache_free/enable
     echo 1 > tracing_on
     ls > /dev/null
@@ -22,6 +21,7 @@ echo 0 > tracing_on
 echo 0 > events/enable
 
 echo "Get the most frequently calling function"
+echo > trace
 sample_events
 
 target_func=`cat trace | grep -o 'call_site=\([^+]*\)' | sed 's/call_site=//' | sort | uniq -c | sort | tail -n 1 | sed 's/^[ 0-9]*//'`
@@ -32,7 +32,16 @@ echo > trace
 
 echo "Test event filter function name"
 echo "call_site.function == $target_func" > events/kmem/kmem_cache_free/filter
+
+sample_events
+max_retry=10
+while [ `grep kmem_cache_free trace| wc -l` -eq 0 ]; do
 sample_events
+max_retry=$((max_retry - 1))
+if [ $max_retry -eq 0 ]; then
+	exit_fail
+fi
+done
 
 hitcnt=`grep kmem_cache_free trace| grep $target_func | wc -l`
 misscnt=`grep kmem_cache_free trace| grep -v $target_func | wc -l`
@@ -49,7 +58,16 @@ address=`grep " ${target_func}\$" /proc/kallsyms | cut -d' ' -f1`
 
 echo "Test event filter function address"
 echo "call_site.function == 0x$address" > events/kmem/kmem_cache_free/filter
+echo > trace
+sample_events
+max_retry=10
+while [ `grep kmem_cache_free trace| wc -l` -eq 0 ]; do
 sample_events
+max_retry=$((max_retry - 1))
+if [ $max_retry -eq 0 ]; then
+	exit_fail
+fi
+done
 
 hitcnt=`grep kmem_cache_free trace| grep $target_func | wc -l`
 misscnt=`grep kmem_cache_free trace| grep -v $target_func | wc -l`
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
index 1f6981ef7afa..ba19b81cef39 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
@@ -30,7 +30,8 @@ find_dot_func() {
 	fi
 
 	grep " [tT] .*\.isra\..*" /proc/kallsyms | cut -f 3 -d " " | while read f; do
-		if grep -s $f available_filter_functions; then
+		cnt=`grep -s $f available_filter_functions | wc -l`;
+		if [ $cnt -eq 1 ]; then
 			echo $f
 			break
 		fi
diff --git a/tools/testing/selftests/futex/Makefile b/tools/testing/selftests/futex/Makefile
index 11e157d7533b..78ab2cd111f6 100644
--- a/tools/testing/selftests/futex/Makefile
+++ b/tools/testing/selftests/futex/Makefile
@@ -3,8 +3,6 @@ SUBDIRS := functional
 
 TEST_PROGS := run.sh
 
-.PHONY: all clean
-
 include ../lib.mk
 
 all:
diff --git a/tools/testing/selftests/futex/functional/Makefile b/tools/testing/selftests/futex/functional/Makefile
index a392d0917b4e..994fa3468f17 100644
--- a/tools/testing/selftests/futex/functional/Makefile
+++ b/tools/testing/selftests/futex/functional/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 INCLUDES := -I../include -I../../ $(KHDR_INCLUDES)
-CFLAGS := $(CFLAGS) -g -O2 -Wall -D_GNU_SOURCE -pthread $(INCLUDES) $(KHDR_INCLUDES)
+CFLAGS := $(CFLAGS) -g -O2 -Wall -D_GNU_SOURCE= -pthread $(INCLUDES) $(KHDR_INCLUDES)
 LDLIBS := -lpthread -lrt
 
 LOCAL_HDRS := \
diff --git a/tools/testing/selftests/futex/functional/futex_requeue_pi.c b/tools/testing/selftests/futex/functional/futex_requeue_pi.c
index 7f3ca5c78df1..215c6cb539b4 100644
--- a/tools/testing/selftests/futex/functional/futex_requeue_pi.c
+++ b/tools/testing/selftests/futex/functional/futex_requeue_pi.c
@@ -360,7 +360,7 @@ out:
 
 int main(int argc, char *argv[])
 {
-	const char *test_name;
+	char *test_name;
 	int c, ret;
 
 	while ((c = getopt(argc, argv, "bchlot:v:")) != -1) {
diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c
index 6b5a9ff88c3d..7d063c652be1 100644
--- a/tools/testing/selftests/landlock/fs_test.c
+++ b/tools/testing/selftests/landlock/fs_test.c
@@ -35,6 +35,7 @@
  * See https://sourceware.org/glibc/wiki/Synchronizing_Headers.
  */
 #include <linux/fs.h>
+#include <linux/mount.h>
 
 #include "common.h"
 
@@ -47,6 +48,13 @@ int renameat2(int olddirfd, const char *oldpath, int newdirfd,
 }
 #endif
 
+#ifndef open_tree
+int open_tree(int dfd, const char *filename, unsigned int flags)
+{
+	return syscall(__NR_open_tree, dfd, filename, flags);
+}
+#endif
+
 #ifndef RENAME_EXCHANGE
 #define RENAME_EXCHANGE (1 << 1)
 #endif
@@ -2400,6 +2408,43 @@ TEST_F_FORK(layout1, refer_denied_by_default4)
 				layer_dir_s1d1_refer);
 }
 
+/*
+ * Tests walking through a denied root mount.
+ */
+TEST_F_FORK(layout1, refer_mount_root_deny)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_MAKE_DIR,
+	};
+	int root_fd, ruleset_fd;
+
+	/* Creates a mount object from a non-mount point. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	root_fd =
+		open_tree(AT_FDCWD, dir_s1d1,
+			  AT_EMPTY_PATH | OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_LE(0, root_fd);
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	ASSERT_EQ(0, landlock_restrict_self(ruleset_fd, 0));
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	/* Link denied by Landlock: EACCES. */
+	EXPECT_EQ(-1, linkat(root_fd, ".", root_fd, "does_not_exist", 0));
+	EXPECT_EQ(EACCES, errno);
+
+	/* renameat2() always returns EBUSY. */
+	EXPECT_EQ(-1, renameat2(root_fd, ".", root_fd, "does_not_exist", 0));
+	EXPECT_EQ(EBUSY, errno);
+
+	EXPECT_EQ(0, close(root_fd));
+}
+
 TEST_F_FORK(layout1, reparent_link)
 {
 	const struct rule layer1[] = {
diff --git a/tools/testing/selftests/net/hsr/config b/tools/testing/selftests/net/hsr/config
index 22061204fb69..241542441c51 100644
--- a/tools/testing/selftests/net/hsr/config
+++ b/tools/testing/selftests/net/hsr/config
@@ -2,3 +2,4 @@ CONFIG_IPV6=y
 CONFIG_NET_SCH_NETEM=m
 CONFIG_HSR=y
 CONFIG_VETH=y
+CONFIG_BRIDGE=y
diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh
index edc030e81a46..9155c914c064 100644
--- a/tools/testing/selftests/net/lib.sh
+++ b/tools/testing/selftests/net/lib.sh
@@ -15,7 +15,7 @@ ksft_xfail=2
 ksft_skip=4
 
 # namespace list created by setup_ns
-NS_LIST=""
+NS_LIST=()
 
 ##############################################################################
 # Helpers
@@ -27,6 +27,7 @@ __ksft_status_merge()
 	local -A weights
 	local weight=0
 
+	local i
 	for i in "$@"; do
 		weights[$i]=$((weight++))
 	done
@@ -67,9 +68,7 @@ loopy_wait()
 	while true
 	do
 		local out
-		out=$("$@")
-		local ret=$?
-		if ((!ret)); then
+		if out=$("$@"); then
 			echo -n "$out"
 			return 0
 		fi
@@ -139,6 +138,7 @@ cleanup_ns()
 	fi
 
 	for ns in "$@"; do
+		[ -z "${ns}" ] && continue
 		ip netns delete "${ns}" &> /dev/null
 		if ! busywait $BUSYWAIT_TIMEOUT ip netns list \| grep -vq "^$ns$" &> /dev/null; then
 			echo "Warn: Failed to remove namespace $ns"
@@ -152,7 +152,7 @@ cleanup_ns()
 
 cleanup_all_ns()
 {
-	cleanup_ns $NS_LIST
+	cleanup_ns "${NS_LIST[@]}"
 }
 
 # setup netns with given names as prefix. e.g
@@ -161,7 +161,7 @@ setup_ns()
 {
 	local ns=""
 	local ns_name=""
-	local ns_list=""
+	local ns_list=()
 	local ns_exist=
 	for ns_name in "$@"; do
 		# Some test may setup/remove same netns multi times
@@ -177,13 +177,13 @@ setup_ns()
 
 		if ! ip netns add "$ns"; then
 			echo "Failed to create namespace $ns_name"
-			cleanup_ns "$ns_list"
+			cleanup_ns "${ns_list[@]}"
 			return $ksft_skip
 		fi
 		ip -n "$ns" link set lo up
-		! $ns_exist && ns_list="$ns_list $ns"
+		! $ns_exist && ns_list+=("$ns")
 	done
-	NS_LIST="$NS_LIST $ns_list"
+	NS_LIST+=("${ns_list[@]}")
 }
 
 tc_rule_stats_get()
diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c
index 9024754530b2..5790ab446527 100644
--- a/tools/testing/selftests/openat2/openat2_test.c
+++ b/tools/testing/selftests/openat2/openat2_test.c
@@ -5,6 +5,7 @@
  */
 
 #define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__ // Use ll64
 #include <fcntl.h>
 #include <sched.h>
 #include <sys/stat.h>