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init: main: add KUnit to kernel init

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Although we have not seen any actual examples where KUnit doesn't work
because it runs in the late init phase of the kernel, it has been a
concern for some time that this could potentially be an issue in the
future. So, remove KUnit from init calls entirely, instead call directly
from kernel_init() so that KUnit runs after late init.

Co-developed-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Brendan Higgins 2020-08-04 13:47:43 -07:00 committed by Shuah Khan
parent aac35468ca
commit 8c0d884986
3 changed files with 14 additions and 3 deletions
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9
include/kunit/test.h
View file

@ -237,6 +237,15 @@ int __kunit_test_suites_init(struct kunit_suite * const * const suites);
void __kunit_test_suites_exit(struct kunit_suite **suites);
#if IS_BUILTIN(CONFIG_KUNIT)
int kunit_run_all_tests(void);
#else
static inline int kunit_run_all_tests(void)
{
return 0;
}
#endif /* IS_BUILTIN(CONFIG_KUNIT) */
/**
* kunit_test_suites() - used to register one or more &struct kunit_suite
* with KUnit.

4
init/main.c
View file

@ -107,6 +107,8 @@
#define CREATE_TRACE_POINTS
#include <trace/events/initcall.h>
#include <kunit/test.h>
static int kernel_init(void *);
extern void init_IRQ(void);
@ -1511,6 +1513,8 @@ static noinline void __init kernel_init_freeable(void)
do_basic_setup();
kunit_run_all_tests();
console_on_rootfs();
/*

4
lib/kunit/executor.c
View file

@ -11,7 +11,7 @@ extern struct kunit_suite * const * const __kunit_suites_end[];
#if IS_BUILTIN(CONFIG_KUNIT)
static int kunit_run_all_tests(void)
int kunit_run_all_tests(void)
{
struct kunit_suite * const * const *suites;
@ -23,6 +23,4 @@ static int kunit_run_all_tests(void)
return 0;
}
late_initcall(kunit_run_all_tests);
#endif /* IS_BUILTIN(CONFIG_KUNIT) */