linux-master/kernel/sysctl-test.c

13  * Test that proc_dointvec will not try to use a NULL .data field even when the
21 		 * Here we are testing that proc_dointvec behaves correctly when
28 		.proc_handler	= proc_dointvec,
33 	 * proc_dointvec expects a buffer in user space, so we allocate one. We
42 	 * We don't care what the starting length is since proc_dointvec should
46 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&null_data_table,
55 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&null_data_table,
63  * field that proc_dointvec cannot do anything with; however, this time it is
64  * because we tell proc_dointvec that the size is 0.
73 		 * So .data is no longer NULL, but we tell proc_dointvec its
78 		.proc_handler	= proc_dointvec,
88 	 * As before, we don't care what buffer length is because proc_dointvec
92 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&data_maxlen_unset_table,
101 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&data_maxlen_unset_table,
121 		.proc_handler	= proc_dointvec,
133 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_READ, buffer,
137 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_WRITE, buffer,
143  * Test that proc_dointvec refuses to read when the file position is non-zero.
155 		.proc_handler	= proc_dointvec,
167 	 * proc_dointvec should refuse to read into the buffer since the file
172 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_READ, buffer,
190 		.proc_handler	= proc_dointvec,
201 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_READ,
221 		.proc_handler	= proc_dointvec,
231 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_READ,
250 		.proc_handler	= proc_dointvec,
262 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_WRITE,
280 		.proc_handler	= proc_dointvec,
292 	KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_WRITE,
312 		.proc_handler	= proc_dointvec,
332 	KUNIT_EXPECT_EQ(test, -EINVAL, proc_dointvec(&table, KUNIT_PROC_WRITE,
350 		.proc_handler	= proc_dointvec,
364 	KUNIT_EXPECT_EQ(test, -EINVAL, proc_dointvec(&table, KUNIT_PROC_WRITE,