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selftests/user_events: Fix abi_test for BE archs

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The abi_test currently uses a long sized test value for enablement
checks. On LE this works fine, however, on BE this results in inaccurate
assert checks due to a bit being used and assuming it's value is the
same on both LE and BE.

Use int type for 32-bit values and long type for 64-bit values to ensure
appropriate behavior on both LE and BE.

Fixes: 60b1af8de8c1 ("tracing/user_events: Add ABI self-test")
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Beau Belgrave 2023-10-05 21:57:12 +00:00 committed by Shuah Khan
parent 6f874fa021
commit cf5a103c98
1 changed files with 9 additions and 7 deletions
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16
tools/testing/selftests/user_events/abi_test.c
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@ -47,7 +47,7 @@ static int change_event(bool enable)
return ret;
}
static int reg_enable(long *enable, int size, int bit)
static int reg_enable(void *enable, int size, int bit)
{
struct user_reg reg = {0};
int fd = open(data_file, O_RDWR);
@ -69,7 +69,7 @@ static int reg_enable(long *enable, int size, int bit)
return ret;
}
static int reg_disable(long *enable, int bit)
static int reg_disable(void *enable, int bit)
{
struct user_unreg reg = {0};
int fd = open(data_file, O_RDWR);
@ -90,7 +90,8 @@ static int reg_disable(long *enable, int bit)
}
FIXTURE(user) {
long check;
int check;
long check_long;
bool umount;
};
@ -99,6 +100,7 @@ FIXTURE_SETUP(user) {
change_event(false);
self->check = 0;
self->check_long = 0;
}
FIXTURE_TEARDOWN(user) {
@ -136,9 +138,9 @@ TEST_F(user, bit_sizes) {
#if BITS_PER_LONG == 8
/* Allow 0-64 bits for 64-bit */
ASSERT_EQ(0, reg_enable(&self->check, sizeof(long), 63));
ASSERT_NE(0, reg_enable(&self->check, sizeof(long), 64));
ASSERT_EQ(0, reg_disable(&self->check, 63));
ASSERT_EQ(0, reg_enable(&self->check_long, sizeof(long), 63));
ASSERT_NE(0, reg_enable(&self->check_long, sizeof(long), 64));
ASSERT_EQ(0, reg_disable(&self->check_long, 63));
#endif
/* Disallowed sizes (everything beside 4 and 8) */
@ -200,7 +202,7 @@ static int clone_check(void *check)
for (i = 0; i < 10; ++i) {
usleep(100000);
if (*(long *)check)
if (*(int *)check)
return 0;
}