mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 14:11:52 +00:00
3034749132
make allmodconfig && make W=1 C=1 reports for lib/test_*.ko: WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_hexdump.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_dhry.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_firmware.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_sysctl.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_hash.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_ida.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_list_sort.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_min_heap.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_module.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_sort.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_static_keys.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_static_key_base.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_memcat_p.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_blackhole_dev.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_meminit.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_free_pages.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_kprobes.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_ref_tracker.o WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_bits.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Link: https://lkml.kernel.org/r/20240619-md-lib-test-v2-1-301e30eeba1e@quicinc.com Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Reviewed-by: Kees Cook <kees@kernel.org> Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org> Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Reference tracker self test.
|
|
*
|
|
* Copyright (c) 2021 Eric Dumazet <edumazet@google.com>
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/ref_tracker.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/timer.h>
|
|
|
|
static struct ref_tracker_dir ref_dir;
|
|
static struct ref_tracker *tracker[20];
|
|
|
|
#define TRT_ALLOC(X) static noinline void \
|
|
alloctest_ref_tracker_alloc##X(struct ref_tracker_dir *dir, \
|
|
struct ref_tracker **trackerp) \
|
|
{ \
|
|
ref_tracker_alloc(dir, trackerp, GFP_KERNEL); \
|
|
}
|
|
|
|
TRT_ALLOC(1)
|
|
TRT_ALLOC(2)
|
|
TRT_ALLOC(3)
|
|
TRT_ALLOC(4)
|
|
TRT_ALLOC(5)
|
|
TRT_ALLOC(6)
|
|
TRT_ALLOC(7)
|
|
TRT_ALLOC(8)
|
|
TRT_ALLOC(9)
|
|
TRT_ALLOC(10)
|
|
TRT_ALLOC(11)
|
|
TRT_ALLOC(12)
|
|
TRT_ALLOC(13)
|
|
TRT_ALLOC(14)
|
|
TRT_ALLOC(15)
|
|
TRT_ALLOC(16)
|
|
TRT_ALLOC(17)
|
|
TRT_ALLOC(18)
|
|
TRT_ALLOC(19)
|
|
|
|
#undef TRT_ALLOC
|
|
|
|
static noinline void
|
|
alloctest_ref_tracker_free(struct ref_tracker_dir *dir,
|
|
struct ref_tracker **trackerp)
|
|
{
|
|
ref_tracker_free(dir, trackerp);
|
|
}
|
|
|
|
|
|
static struct timer_list test_ref_tracker_timer;
|
|
static atomic_t test_ref_timer_done = ATOMIC_INIT(0);
|
|
|
|
static void test_ref_tracker_timer_func(struct timer_list *t)
|
|
{
|
|
ref_tracker_alloc(&ref_dir, &tracker[0], GFP_ATOMIC);
|
|
atomic_set(&test_ref_timer_done, 1);
|
|
}
|
|
|
|
static int __init test_ref_tracker_init(void)
|
|
{
|
|
int i;
|
|
|
|
ref_tracker_dir_init(&ref_dir, 100, "selftest");
|
|
|
|
timer_setup(&test_ref_tracker_timer, test_ref_tracker_timer_func, 0);
|
|
mod_timer(&test_ref_tracker_timer, jiffies + 1);
|
|
|
|
alloctest_ref_tracker_alloc1(&ref_dir, &tracker[1]);
|
|
alloctest_ref_tracker_alloc2(&ref_dir, &tracker[2]);
|
|
alloctest_ref_tracker_alloc3(&ref_dir, &tracker[3]);
|
|
alloctest_ref_tracker_alloc4(&ref_dir, &tracker[4]);
|
|
alloctest_ref_tracker_alloc5(&ref_dir, &tracker[5]);
|
|
alloctest_ref_tracker_alloc6(&ref_dir, &tracker[6]);
|
|
alloctest_ref_tracker_alloc7(&ref_dir, &tracker[7]);
|
|
alloctest_ref_tracker_alloc8(&ref_dir, &tracker[8]);
|
|
alloctest_ref_tracker_alloc9(&ref_dir, &tracker[9]);
|
|
alloctest_ref_tracker_alloc10(&ref_dir, &tracker[10]);
|
|
alloctest_ref_tracker_alloc11(&ref_dir, &tracker[11]);
|
|
alloctest_ref_tracker_alloc12(&ref_dir, &tracker[12]);
|
|
alloctest_ref_tracker_alloc13(&ref_dir, &tracker[13]);
|
|
alloctest_ref_tracker_alloc14(&ref_dir, &tracker[14]);
|
|
alloctest_ref_tracker_alloc15(&ref_dir, &tracker[15]);
|
|
alloctest_ref_tracker_alloc16(&ref_dir, &tracker[16]);
|
|
alloctest_ref_tracker_alloc17(&ref_dir, &tracker[17]);
|
|
alloctest_ref_tracker_alloc18(&ref_dir, &tracker[18]);
|
|
alloctest_ref_tracker_alloc19(&ref_dir, &tracker[19]);
|
|
|
|
/* free all trackers but first 0 and 1. */
|
|
for (i = 2; i < ARRAY_SIZE(tracker); i++)
|
|
alloctest_ref_tracker_free(&ref_dir, &tracker[i]);
|
|
|
|
/* Attempt to free an already freed tracker. */
|
|
alloctest_ref_tracker_free(&ref_dir, &tracker[2]);
|
|
|
|
while (!atomic_read(&test_ref_timer_done))
|
|
msleep(1);
|
|
|
|
/* This should warn about tracker[0] & tracker[1] being not freed. */
|
|
ref_tracker_dir_exit(&ref_dir);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit test_ref_tracker_exit(void)
|
|
{
|
|
}
|
|
|
|
module_init(test_ref_tracker_init);
|
|
module_exit(test_ref_tracker_exit);
|
|
|
|
MODULE_DESCRIPTION("Reference tracker self test");
|
|
MODULE_LICENSE("GPL v2");
|