linux-IllusionX/lib/test_ref_tracker.c
Jeff Johnson 3034749132 KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko
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>
2024-06-24 22:25:11 -07:00

116 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");