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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
116 lines
2.2 KiB
C
116 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Test cases for memcat_p() in lib/memcat_p.c
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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struct test_struct {
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int num;
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unsigned int magic;
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};
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#define MAGIC 0xf00ff00f
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/* Size of each of the NULL-terminated input arrays */
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#define INPUT_MAX 128
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/* Expected number of non-NULL elements in the output array */
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#define EXPECT (INPUT_MAX * 2 - 2)
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static int __init test_memcat_p_init(void)
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{
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struct test_struct **in0, **in1, **out, **p;
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int err = -ENOMEM, i, r, total = 0;
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in0 = kzalloc_objs(*in0, INPUT_MAX);
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if (!in0)
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return err;
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in1 = kzalloc_objs(*in1, INPUT_MAX);
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if (!in1)
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goto err_free_in0;
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for (i = 0, r = 1; i < INPUT_MAX - 1; i++) {
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in0[i] = kmalloc_obj(**in0);
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if (!in0[i])
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goto err_free_elements;
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in1[i] = kmalloc_obj(**in1);
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if (!in1[i]) {
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kfree(in0[i]);
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goto err_free_elements;
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}
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/* lifted from test_sort.c */
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r = (r * 725861) % 6599;
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in0[i]->num = r;
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in1[i]->num = -r;
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in0[i]->magic = MAGIC;
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in1[i]->magic = MAGIC;
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}
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in0[i] = in1[i] = NULL;
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out = memcat_p(in0, in1);
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if (!out)
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goto err_free_all_elements;
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err = -EINVAL;
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for (i = 0, p = out; *p && (i < INPUT_MAX * 2 - 1); p++, i++) {
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total += (*p)->num;
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if ((*p)->magic != MAGIC) {
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pr_err("test failed: wrong magic at %d: %u\n", i,
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(*p)->magic);
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goto err_free_out;
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}
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}
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if (total) {
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pr_err("test failed: expected zero total, got %d\n", total);
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goto err_free_out;
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}
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if (i != EXPECT) {
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pr_err("test failed: expected output size %d, got %d\n",
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EXPECT, i);
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goto err_free_out;
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}
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for (i = 0; i < INPUT_MAX - 1; i++)
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if (out[i] != in0[i] || out[i + INPUT_MAX - 1] != in1[i]) {
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pr_err("test failed: wrong element order at %d\n", i);
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goto err_free_out;
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}
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err = 0;
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pr_info("test passed\n");
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err_free_out:
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kfree(out);
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err_free_all_elements:
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i = INPUT_MAX;
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err_free_elements:
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for (i--; i >= 0; i--) {
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kfree(in1[i]);
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kfree(in0[i]);
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}
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kfree(in1);
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err_free_in0:
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kfree(in0);
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return err;
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}
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static void __exit test_memcat_p_exit(void)
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{
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}
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module_init(test_memcat_p_init);
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module_exit(test_memcat_p_exit);
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MODULE_DESCRIPTION("Test cases for memcat_p() in lib/memcat_p.c");
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MODULE_LICENSE("GPL");
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