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authorMark Brown <broonie@kernel.org>2018-01-08 15:54:50 +0000
committerMark Brown <broonie@kernel.org>2018-01-08 15:54:50 +0000
commit498495dba268b20e8eadd7fe93c140c68b6cc9d2 (patch)
tree00d1562049d8bc2194fddd9ba0cbbe0812ad6f68 /lib/string.c
parentd5cc0a1fcbb5ddbef9fdd4c4a978da3254ddbf37 (diff)
parent5c256045b87b8aa8e5bc9d2e2fdc0802351c1f99 (diff)
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Merge branch 'fix/intel' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel
Diffstat (limited to 'lib/string.c')
-rw-r--r--lib/string.c142
1 files changed, 1 insertions, 141 deletions
diff --git a/lib/string.c b/lib/string.c
index 9921dc202db4..64a9e33f1daa 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/lib/string.c
*
@@ -1051,144 +1052,3 @@ void fortify_panic(const char *name)
BUG();
}
EXPORT_SYMBOL(fortify_panic);
-
-#ifdef CONFIG_STRING_SELFTEST
-#include <linux/slab.h>
-#include <linux/module.h>
-
-static __init int memset16_selftest(void)
-{
- unsigned i, j, k;
- u16 v, *p;
-
- p = kmalloc(256 * 2 * 2, GFP_KERNEL);
- if (!p)
- return -1;
-
- for (i = 0; i < 256; i++) {
- for (j = 0; j < 256; j++) {
- memset(p, 0xa1, 256 * 2 * sizeof(v));
- memset16(p + i, 0xb1b2, j);
- for (k = 0; k < 512; k++) {
- v = p[k];
- if (k < i) {
- if (v != 0xa1a1)
- goto fail;
- } else if (k < i + j) {
- if (v != 0xb1b2)
- goto fail;
- } else {
- if (v != 0xa1a1)
- goto fail;
- }
- }
- }
- }
-
-fail:
- kfree(p);
- if (i < 256)
- return (i << 24) | (j << 16) | k;
- return 0;
-}
-
-static __init int memset32_selftest(void)
-{
- unsigned i, j, k;
- u32 v, *p;
-
- p = kmalloc(256 * 2 * 4, GFP_KERNEL);
- if (!p)
- return -1;
-
- for (i = 0; i < 256; i++) {
- for (j = 0; j < 256; j++) {
- memset(p, 0xa1, 256 * 2 * sizeof(v));
- memset32(p + i, 0xb1b2b3b4, j);
- for (k = 0; k < 512; k++) {
- v = p[k];
- if (k < i) {
- if (v != 0xa1a1a1a1)
- goto fail;
- } else if (k < i + j) {
- if (v != 0xb1b2b3b4)
- goto fail;
- } else {
- if (v != 0xa1a1a1a1)
- goto fail;
- }
- }
- }
- }
-
-fail:
- kfree(p);
- if (i < 256)
- return (i << 24) | (j << 16) | k;
- return 0;
-}
-
-static __init int memset64_selftest(void)
-{
- unsigned i, j, k;
- u64 v, *p;
-
- p = kmalloc(256 * 2 * 8, GFP_KERNEL);
- if (!p)
- return -1;
-
- for (i = 0; i < 256; i++) {
- for (j = 0; j < 256; j++) {
- memset(p, 0xa1, 256 * 2 * sizeof(v));
- memset64(p + i, 0xb1b2b3b4b5b6b7b8ULL, j);
- for (k = 0; k < 512; k++) {
- v = p[k];
- if (k < i) {
- if (v != 0xa1a1a1a1a1a1a1a1ULL)
- goto fail;
- } else if (k < i + j) {
- if (v != 0xb1b2b3b4b5b6b7b8ULL)
- goto fail;
- } else {
- if (v != 0xa1a1a1a1a1a1a1a1ULL)
- goto fail;
- }
- }
- }
- }
-
-fail:
- kfree(p);
- if (i < 256)
- return (i << 24) | (j << 16) | k;
- return 0;
-}
-
-static __init int string_selftest_init(void)
-{
- int test, subtest;
-
- test = 1;
- subtest = memset16_selftest();
- if (subtest)
- goto fail;
-
- test = 2;
- subtest = memset32_selftest();
- if (subtest)
- goto fail;
-
- test = 3;
- subtest = memset64_selftest();
- if (subtest)
- goto fail;
-
- pr_info("String selftests succeeded\n");
- return 0;
-fail:
- pr_crit("String selftest failure %d.%08x\n", test, subtest);
- return 0;
-}
-
-module_init(string_selftest_init);
-#endif /* CONFIG_STRING_SELFTEST */