summaryrefslogtreecommitdiffstats
path: root/tools
diff options
context:
space:
mode:
Diffstat (limited to 'tools')
-rw-r--r--tools/lib/bpf/bpf_core_read.h1
-rw-r--r--tools/lib/bpf/features.c32
-rw-r--r--tools/power/x86/turbostat/turbostat.c35
-rw-r--r--tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c34
-rw-r--r--tools/testing/selftests/bpf/progs/dummy_st_ops_success.c15
-rw-r--r--tools/testing/selftests/kselftest_harness.h43
-rw-r--r--tools/testing/selftests/net/gro.c3
-rw-r--r--tools/testing/selftests/net/ip_local_port_range.c2
-rw-r--r--tools/testing/selftests/net/mptcp/pm_nl_ctl.c2
-rw-r--r--tools/testing/selftests/net/msg_zerocopy.c14
-rw-r--r--tools/testing/selftests/resctrl/cat_test.c32
11 files changed, 163 insertions, 50 deletions
diff --git a/tools/lib/bpf/bpf_core_read.h b/tools/lib/bpf/bpf_core_read.h
index 1ce738d916..670726353a 100644
--- a/tools/lib/bpf/bpf_core_read.h
+++ b/tools/lib/bpf/bpf_core_read.h
@@ -104,6 +104,7 @@ enum bpf_enum_value_kind {
case 2: val = *(const unsigned short *)p; break; \
case 4: val = *(const unsigned int *)p; break; \
case 8: val = *(const unsigned long long *)p; break; \
+ default: val = 0; break; \
} \
val <<= __CORE_RELO(s, field, LSHIFT_U64); \
if (__CORE_RELO(s, field, SIGNED)) \
diff --git a/tools/lib/bpf/features.c b/tools/lib/bpf/features.c
index a336786a22..50befe125d 100644
--- a/tools/lib/bpf/features.c
+++ b/tools/lib/bpf/features.c
@@ -392,11 +392,41 @@ static int probe_uprobe_multi_link(int token_fd)
link_fd = bpf_link_create(prog_fd, -1, BPF_TRACE_UPROBE_MULTI, &link_opts);
err = -errno; /* close() can clobber errno */
+ if (link_fd >= 0 || err != -EBADF) {
+ if (link_fd >= 0)
+ close(link_fd);
+ close(prog_fd);
+ return 0;
+ }
+
+ /* Initial multi-uprobe support in kernel didn't handle PID filtering
+ * correctly (it was doing thread filtering, not process filtering).
+ * So now we'll detect if PID filtering logic was fixed, and, if not,
+ * we'll pretend multi-uprobes are not supported, if not.
+ * Multi-uprobes are used in USDT attachment logic, and we need to be
+ * conservative here, because multi-uprobe selection happens early at
+ * load time, while the use of PID filtering is known late at
+ * attachment time, at which point it's too late to undo multi-uprobe
+ * selection.
+ *
+ * Creating uprobe with pid == -1 for (invalid) '/' binary will fail
+ * early with -EINVAL on kernels with fixed PID filtering logic;
+ * otherwise -ESRCH would be returned if passed correct binary path
+ * (but we'll just get -BADF, of course).
+ */
+ link_opts.uprobe_multi.pid = -1; /* invalid PID */
+ link_opts.uprobe_multi.path = "/"; /* invalid path */
+ link_opts.uprobe_multi.offsets = &offset;
+ link_opts.uprobe_multi.cnt = 1;
+
+ link_fd = bpf_link_create(prog_fd, -1, BPF_TRACE_UPROBE_MULTI, &link_opts);
+ err = -errno; /* close() can clobber errno */
+
if (link_fd >= 0)
close(link_fd);
close(prog_fd);
- return link_fd < 0 && err == -EBADF;
+ return link_fd < 0 && err == -EINVAL;
}
static int probe_kern_bpf_cookie(int token_fd)
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 8071a3ef2a..5d80d193e5 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -1022,6 +1022,7 @@ struct rapl_counter_info_t {
/* struct rapl_counter_info_t for each RAPL domain */
struct rapl_counter_info_t *rapl_counter_info_perdomain;
+unsigned int rapl_counter_info_perdomain_size;
#define RAPL_COUNTER_FLAG_USE_MSR_SUM (1u << 1)
@@ -1415,6 +1416,9 @@ struct topo_params {
int allowed_cpus;
int allowed_cores;
int max_cpu_num;
+ int max_core_id;
+ int max_package_id;
+ int max_die_id;
int max_node_num;
int nodes_per_pkg;
int cores_per_node;
@@ -3368,15 +3372,18 @@ void write_rapl_counter(struct rapl_counter *rc, struct rapl_counter_info_t *rci
rc->scale = rci->scale[idx];
}
-int get_rapl_counters(int cpu, int domain, struct core_data *c, struct pkg_data *p)
+int get_rapl_counters(int cpu, unsigned int domain, struct core_data *c, struct pkg_data *p)
{
unsigned long long perf_data[NUM_RAPL_COUNTERS + 1];
- struct rapl_counter_info_t *rci = &rapl_counter_info_perdomain[domain];
+ struct rapl_counter_info_t *rci;
if (debug)
fprintf(stderr, "%s: cpu%d domain%d\n", __func__, cpu, domain);
assert(rapl_counter_info_perdomain);
+ assert(domain < rapl_counter_info_perdomain_size);
+
+ rci = &rapl_counter_info_perdomain[domain];
/*
* If we have any perf counters to read, read them all now, in bulk
@@ -4180,7 +4187,7 @@ void free_fd_rapl_percpu(void)
if (!rapl_counter_info_perdomain)
return;
- const int num_domains = platform->has_per_core_rapl ? topo.num_cores : topo.num_packages;
+ const int num_domains = rapl_counter_info_perdomain_size;
for (int domain_id = 0; domain_id < num_domains; ++domain_id) {
if (rapl_counter_info_perdomain[domain_id].fd_perf != -1)
@@ -4188,6 +4195,8 @@ void free_fd_rapl_percpu(void)
}
free(rapl_counter_info_perdomain);
+ rapl_counter_info_perdomain = NULL;
+ rapl_counter_info_perdomain_size = 0;
}
void free_all_buffers(void)
@@ -6478,17 +6487,18 @@ void linux_perf_init(void)
void rapl_perf_init(void)
{
- const int num_domains = platform->has_per_core_rapl ? topo.num_cores : topo.num_packages;
+ const unsigned int num_domains = (platform->has_per_core_rapl ? topo.max_core_id : topo.max_package_id) + 1;
bool *domain_visited = calloc(num_domains, sizeof(bool));
rapl_counter_info_perdomain = calloc(num_domains, sizeof(*rapl_counter_info_perdomain));
if (rapl_counter_info_perdomain == NULL)
err(-1, "calloc rapl_counter_info_percpu");
+ rapl_counter_info_perdomain_size = num_domains;
/*
* Initialize rapl_counter_info_percpu
*/
- for (int domain_id = 0; domain_id < num_domains; ++domain_id) {
+ for (unsigned int domain_id = 0; domain_id < num_domains; ++domain_id) {
struct rapl_counter_info_t *rci = &rapl_counter_info_perdomain[domain_id];
rci->fd_perf = -1;
@@ -6508,7 +6518,7 @@ void rapl_perf_init(void)
bool has_counter = 0;
double scale;
enum rapl_unit unit;
- int next_domain;
+ unsigned int next_domain;
memset(domain_visited, 0, num_domains * sizeof(*domain_visited));
@@ -6521,6 +6531,8 @@ void rapl_perf_init(void)
next_domain =
platform->has_per_core_rapl ? cpus[cpu].physical_core_id : cpus[cpu].physical_package_id;
+ assert(next_domain < num_domains);
+
if (domain_visited[next_domain])
continue;
@@ -6967,7 +6979,6 @@ void topology_probe(bool startup)
int i;
int max_core_id = 0;
int max_package_id = 0;
- int max_die_id = 0;
int max_siblings = 0;
/* Initialize num_cpus, max_cpu_num */
@@ -7084,8 +7095,8 @@ void topology_probe(bool startup)
/* get die information */
cpus[i].die_id = get_die_id(i);
- if (cpus[i].die_id > max_die_id)
- max_die_id = cpus[i].die_id;
+ if (cpus[i].die_id > topo.max_die_id)
+ topo.max_die_id = cpus[i].die_id;
/* get numa node information */
cpus[i].physical_node_id = get_physical_node_id(&cpus[i]);
@@ -7104,6 +7115,8 @@ void topology_probe(bool startup)
if (cpus[i].thread_id == 0)
topo.num_cores++;
}
+ topo.max_core_id = max_core_id;
+ topo.max_package_id = max_package_id;
topo.cores_per_node = max_core_id + 1;
if (debug > 1)
@@ -7111,9 +7124,9 @@ void topology_probe(bool startup)
if (!summary_only && topo.cores_per_node > 1)
BIC_PRESENT(BIC_Core);
- topo.num_die = max_die_id + 1;
+ topo.num_die = topo.max_die_id + 1;
if (debug > 1)
- fprintf(outf, "max_die_id %d, sizing for %d die\n", max_die_id, topo.num_die);
+ fprintf(outf, "max_die_id %d, sizing for %d die\n", topo.max_die_id, topo.num_die);
if (!summary_only && topo.num_die > 1)
BIC_PRESENT(BIC_Die);
diff --git a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
index f43fcb13d2..d3d94596ab 100644
--- a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
+++ b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
@@ -98,7 +98,8 @@ done:
static void test_dummy_multiple_args(void)
{
- __u64 args[5] = {0, -100, 0x8a5f, 'c', 0x1234567887654321ULL};
+ struct bpf_dummy_ops_state st = { 7 };
+ __u64 args[5] = {(__u64)&st, -100, 0x8a5f, 'c', 0x1234567887654321ULL};
LIBBPF_OPTS(bpf_test_run_opts, attr,
.ctx_in = args,
.ctx_size_in = sizeof(args),
@@ -115,6 +116,7 @@ static void test_dummy_multiple_args(void)
fd = bpf_program__fd(skel->progs.test_2);
err = bpf_prog_test_run_opts(fd, &attr);
ASSERT_OK(err, "test_run");
+ args[0] = 7;
for (i = 0; i < ARRAY_SIZE(args); i++) {
snprintf(name, sizeof(name), "arg %zu", i);
ASSERT_EQ(skel->bss->test_2_args[i], args[i], name);
@@ -125,7 +127,8 @@ static void test_dummy_multiple_args(void)
static void test_dummy_sleepable(void)
{
- __u64 args[1] = {0};
+ struct bpf_dummy_ops_state st;
+ __u64 args[1] = {(__u64)&st};
LIBBPF_OPTS(bpf_test_run_opts, attr,
.ctx_in = args,
.ctx_size_in = sizeof(args),
@@ -144,6 +147,31 @@ static void test_dummy_sleepable(void)
dummy_st_ops_success__destroy(skel);
}
+/* dummy_st_ops.test_sleepable() parameter is not marked as nullable,
+ * thus bpf_prog_test_run_opts() below should be rejected as it tries
+ * to pass NULL for this parameter.
+ */
+static void test_dummy_sleepable_reject_null(void)
+{
+ __u64 args[1] = {0};
+ LIBBPF_OPTS(bpf_test_run_opts, attr,
+ .ctx_in = args,
+ .ctx_size_in = sizeof(args),
+ );
+ struct dummy_st_ops_success *skel;
+ int fd, err;
+
+ skel = dummy_st_ops_success__open_and_load();
+ if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load"))
+ return;
+
+ fd = bpf_program__fd(skel->progs.test_sleepable);
+ err = bpf_prog_test_run_opts(fd, &attr);
+ ASSERT_EQ(err, -EINVAL, "test_run");
+
+ dummy_st_ops_success__destroy(skel);
+}
+
void test_dummy_st_ops(void)
{
if (test__start_subtest("dummy_st_ops_attach"))
@@ -156,6 +184,8 @@ void test_dummy_st_ops(void)
test_dummy_multiple_args();
if (test__start_subtest("dummy_sleepable"))
test_dummy_sleepable();
+ if (test__start_subtest("dummy_sleepable_reject_null"))
+ test_dummy_sleepable_reject_null();
RUN_TESTS(dummy_st_ops_fail);
}
diff --git a/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c b/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c
index 1efa746c25..ec0c595d47 100644
--- a/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c
+++ b/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c
@@ -11,8 +11,17 @@ int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)
{
int ret;
- if (!state)
- return 0xf2f3f4f5;
+ /* Check that 'state' nullable status is detected correctly.
+ * If 'state' argument would be assumed non-null by verifier
+ * the code below would be deleted as dead (which it shouldn't).
+ * Hide it from the compiler behind 'asm' block to avoid
+ * unnecessary optimizations.
+ */
+ asm volatile (
+ "if %[state] != 0 goto +2;"
+ "r0 = 0xf2f3f4f5;"
+ "exit;"
+ ::[state]"p"(state));
ret = state->val;
state->val = 0x5a;
@@ -25,7 +34,7 @@ SEC("struct_ops/test_2")
int BPF_PROG(test_2, struct bpf_dummy_ops_state *state, int a1, unsigned short a2,
char a3, unsigned long a4)
{
- test_2_args[0] = (unsigned long)state;
+ test_2_args[0] = state->val;
test_2_args[1] = a1;
test_2_args[2] = a2;
test_2_args[3] = a3;
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index b634969cbb..40723a6a08 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -66,8 +66,6 @@
#include <sys/wait.h>
#include <unistd.h>
#include <setjmp.h>
-#include <syscall.h>
-#include <linux/sched.h>
#include "kselftest.h"
@@ -82,17 +80,6 @@
# define TH_LOG_ENABLED 1
#endif
-/* Wait for the child process to end but without sharing memory mapping. */
-static inline pid_t clone3_vfork(void)
-{
- struct clone_args args = {
- .flags = CLONE_VFORK,
- .exit_signal = SIGCHLD,
- };
-
- return syscall(__NR_clone3, &args, sizeof(args));
-}
-
/**
* TH_LOG()
*
@@ -437,7 +424,7 @@ static inline pid_t clone3_vfork(void)
} \
if (setjmp(_metadata->env) == 0) { \
/* _metadata and potentially self are shared with all forks. */ \
- child = clone3_vfork(); \
+ child = fork(); \
if (child == 0) { \
fixture_name##_setup(_metadata, self, variant->data); \
/* Let setup failure terminate early. */ \
@@ -1016,7 +1003,14 @@ void __wait_for_test(struct __test_metadata *t)
.sa_flags = SA_SIGINFO,
};
struct sigaction saved_action;
- int status;
+ /*
+ * Sets status so that WIFEXITED(status) returns true and
+ * WEXITSTATUS(status) returns KSFT_FAIL. This safe default value
+ * should never be evaluated because of the waitpid(2) check and
+ * SIGALRM handling.
+ */
+ int status = KSFT_FAIL << 8;
+ int child;
if (sigaction(SIGALRM, &action, &saved_action)) {
t->exit_code = KSFT_FAIL;
@@ -1028,7 +1022,15 @@ void __wait_for_test(struct __test_metadata *t)
__active_test = t;
t->timed_out = false;
alarm(t->timeout);
- waitpid(t->pid, &status, 0);
+ child = waitpid(t->pid, &status, 0);
+ if (child == -1 && errno != EINTR) {
+ t->exit_code = KSFT_FAIL;
+ fprintf(TH_LOG_STREAM,
+ "# %s: Failed to wait for PID %d (errno: %d)\n",
+ t->name, t->pid, errno);
+ return;
+ }
+
alarm(0);
if (sigaction(SIGALRM, &saved_action, NULL)) {
t->exit_code = KSFT_FAIL;
@@ -1083,6 +1085,7 @@ void __wait_for_test(struct __test_metadata *t)
WTERMSIG(status));
}
} else {
+ t->exit_code = KSFT_FAIL;
fprintf(TH_LOG_STREAM,
"# %s: Test ended in some other way [%u]\n",
t->name,
@@ -1218,6 +1221,7 @@ void __run_test(struct __fixture_metadata *f,
struct __test_xfail *xfail;
char test_name[1024];
const char *diagnostic;
+ int child;
/* reset test struct */
t->exit_code = KSFT_PASS;
@@ -1236,15 +1240,16 @@ void __run_test(struct __fixture_metadata *f,
fflush(stdout);
fflush(stderr);
- t->pid = clone3_vfork();
- if (t->pid < 0) {
+ child = fork();
+ if (child < 0) {
ksft_print_msg("ERROR SPAWNING TEST CHILD\n");
t->exit_code = KSFT_FAIL;
- } else if (t->pid == 0) {
+ } else if (child == 0) {
setpgrp();
t->fn(t, variant);
_exit(t->exit_code);
} else {
+ t->pid = child;
__wait_for_test(t);
}
ksft_print_msg(" %4s %s\n",
diff --git a/tools/testing/selftests/net/gro.c b/tools/testing/selftests/net/gro.c
index 353e1e867f..6038b96ece 100644
--- a/tools/testing/selftests/net/gro.c
+++ b/tools/testing/selftests/net/gro.c
@@ -119,6 +119,9 @@ static void setup_sock_filter(int fd)
next_off = offsetof(struct ipv6hdr, nexthdr);
ipproto_off = ETH_HLEN + next_off;
+ /* Overridden later if exthdrs are used: */
+ opt_ipproto_off = ipproto_off;
+
if (strcmp(testname, "ip") == 0) {
if (proto == PF_INET)
optlen = sizeof(struct ip_timestamp);
diff --git a/tools/testing/selftests/net/ip_local_port_range.c b/tools/testing/selftests/net/ip_local_port_range.c
index 193b82745f..29451d2244 100644
--- a/tools/testing/selftests/net/ip_local_port_range.c
+++ b/tools/testing/selftests/net/ip_local_port_range.c
@@ -359,7 +359,7 @@ TEST_F(ip_local_port_range, late_bind)
struct sockaddr_in v4;
struct sockaddr_in6 v6;
} addr;
- socklen_t addr_len;
+ socklen_t addr_len = 0;
const int one = 1;
int fd, err;
__u32 range;
diff --git a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
index 7426a2cbd4..7ad5a59adf 100644
--- a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
+++ b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
@@ -1276,7 +1276,7 @@ int add_listener(int argc, char *argv[])
struct sockaddr_storage addr;
struct sockaddr_in6 *a6;
struct sockaddr_in *a4;
- u_int16_t family;
+ u_int16_t family = AF_UNSPEC;
int enable = 1;
int sock;
int err;
diff --git a/tools/testing/selftests/net/msg_zerocopy.c b/tools/testing/selftests/net/msg_zerocopy.c
index bdc03a2097..7ea5fb28c9 100644
--- a/tools/testing/selftests/net/msg_zerocopy.c
+++ b/tools/testing/selftests/net/msg_zerocopy.c
@@ -85,6 +85,7 @@ static bool cfg_rx;
static int cfg_runtime_ms = 4200;
static int cfg_verbose;
static int cfg_waittime_ms = 500;
+static int cfg_notification_limit = 32;
static bool cfg_zerocopy;
static socklen_t cfg_alen;
@@ -95,6 +96,7 @@ static char payload[IP_MAXPACKET];
static long packets, bytes, completions, expected_completions;
static int zerocopied = -1;
static uint32_t next_completion;
+static uint32_t sends_since_notify;
static unsigned long gettimeofday_ms(void)
{
@@ -208,6 +210,7 @@ static bool do_sendmsg(int fd, struct msghdr *msg, bool do_zerocopy, int domain)
error(1, errno, "send");
if (cfg_verbose && ret != len)
fprintf(stderr, "send: ret=%u != %u\n", ret, len);
+ sends_since_notify++;
if (len) {
packets++;
@@ -435,7 +438,7 @@ static bool do_recv_completion(int fd, int domain)
/* Detect notification gaps. These should not happen often, if at all.
* Gaps can occur due to drops, reordering and retransmissions.
*/
- if (lo != next_completion)
+ if (cfg_verbose && lo != next_completion)
fprintf(stderr, "gap: %u..%u does not append to %u\n",
lo, hi, next_completion);
next_completion = hi + 1;
@@ -460,6 +463,7 @@ static bool do_recv_completion(int fd, int domain)
static void do_recv_completions(int fd, int domain)
{
while (do_recv_completion(fd, domain)) {}
+ sends_since_notify = 0;
}
/* Wait for all remaining completions on the errqueue */
@@ -549,6 +553,9 @@ static void do_tx(int domain, int type, int protocol)
else
do_sendmsg(fd, &msg, cfg_zerocopy, domain);
+ if (cfg_zerocopy && sends_since_notify >= cfg_notification_limit)
+ do_recv_completions(fd, domain);
+
while (!do_poll(fd, POLLOUT)) {
if (cfg_zerocopy)
do_recv_completions(fd, domain);
@@ -708,7 +715,7 @@ static void parse_opts(int argc, char **argv)
cfg_payload_len = max_payload_len;
- while ((c = getopt(argc, argv, "46c:C:D:i:mp:rs:S:t:vz")) != -1) {
+ while ((c = getopt(argc, argv, "46c:C:D:i:l:mp:rs:S:t:vz")) != -1) {
switch (c) {
case '4':
if (cfg_family != PF_UNSPEC)
@@ -736,6 +743,9 @@ static void parse_opts(int argc, char **argv)
if (cfg_ifindex == 0)
error(1, errno, "invalid iface: %s", optarg);
break;
+ case 'l':
+ cfg_notification_limit = strtoul(optarg, NULL, 0);
+ break;
case 'm':
cfg_cork_mixed = true;
break;
diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
index 4cb991be8e..178a41d4bb 100644
--- a/tools/testing/selftests/resctrl/cat_test.c
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -294,11 +294,30 @@ out:
return ret;
}
+static bool arch_supports_noncont_cat(const struct resctrl_test *test)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ /* AMD always supports non-contiguous CBM. */
+ if (get_vendor() == ARCH_AMD)
+ return true;
+
+ /* Intel support for non-contiguous CBM needs to be discovered. */
+ if (!strcmp(test->resource, "L3"))
+ __cpuid_count(0x10, 1, eax, ebx, ecx, edx);
+ else if (!strcmp(test->resource, "L2"))
+ __cpuid_count(0x10, 2, eax, ebx, ecx, edx);
+ else
+ return false;
+
+ return ((ecx >> 3) & 1);
+}
+
static int noncont_cat_run_test(const struct resctrl_test *test,
const struct user_params *uparams)
{
unsigned long full_cache_mask, cont_mask, noncont_mask;
- unsigned int eax, ebx, ecx, edx, sparse_masks;
+ unsigned int sparse_masks;
int bit_center, ret;
char schemata[64];
@@ -307,15 +326,8 @@ static int noncont_cat_run_test(const struct resctrl_test *test,
if (ret)
return ret;
- if (!strcmp(test->resource, "L3"))
- __cpuid_count(0x10, 1, eax, ebx, ecx, edx);
- else if (!strcmp(test->resource, "L2"))
- __cpuid_count(0x10, 2, eax, ebx, ecx, edx);
- else
- return -EINVAL;
-
- if (sparse_masks != ((ecx >> 3) & 1)) {
- ksft_print_msg("CPUID output doesn't match 'sparse_masks' file content!\n");
+ if (arch_supports_noncont_cat(test) != sparse_masks) {
+ ksft_print_msg("Hardware and kernel differ on non-contiguous CBM support!\n");
return 1;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 05:41:07 +0000