Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Test cases for printf facility.
 */
 
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/printk.h>
#include <linux/random.h>
#include <linux/rtc.h>
#include <linux/slab.h>
#include <linux/string.h>
 
#include <linux/bitmap.h>
#include <linux/dcache.h>
#include <linux/socket.h>
#include <linux/in.h>
 
#include <linux/gfp.h>
#include <linux/mm.h>
 
#include <linux/property.h>
 
#include "../tools/testing/selftests/kselftest_module.h"
 
#define BUF_SIZE 256
#define PAD_SIZE 16
#define FILL_CHAR '$'
 
KSTM_MODULE_GLOBALS();
 
static char *test_buffer __initdata;
static char *alloced_buffer __initdata;
 
extern bool no_hash_pointers;
 
static int __printf(4, 0) __init
do_test(int bufsize, const char *expect, int elen,
<------>const char *fmt, va_list ap)
{
<------>va_list aq;
<------>int ret, written;
 
<------>total_tests++;
 
<------>memset(alloced_buffer, FILL_CHAR, BUF_SIZE + 2*PAD_SIZE);
<------>va_copy(aq, ap);
<------>ret = vsnprintf(test_buffer, bufsize, fmt, aq);
<------>va_end(aq);
 
<------>if (ret != elen) {
<------><------>pr_warn("vsnprintf(buf, %d, \"%s\", ...) returned %d, expected %d\n",
<------><------><------>bufsize, fmt, ret, elen);
<------><------>return 1;
<------>}
 
<------>if (memchr_inv(alloced_buffer, FILL_CHAR, PAD_SIZE)) {
<------><------>pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote before buffer\n", bufsize, fmt);
<------><------>return 1;
<------>}
 
<------>if (!bufsize) {
<------><------>if (memchr_inv(test_buffer, FILL_CHAR, BUF_SIZE + PAD_SIZE)) {
<------><------><------>pr_warn("vsnprintf(buf, 0, \"%s\", ...) wrote to buffer\n",
<------><------><------><------>fmt);
<------><------><------>return 1;
<------><------>}
<------><------>return 0;
<------>}
 
<------>written = min(bufsize-1, elen);
<------>if (test_buffer[written]) {
<------><------>pr_warn("vsnprintf(buf, %d, \"%s\", ...) did not nul-terminate buffer\n",
<------><------><------>bufsize, fmt);
<------><------>return 1;
<------>}
 
<------>if (memchr_inv(test_buffer + written + 1, FILL_CHAR, BUF_SIZE + PAD_SIZE - (written + 1))) {
<------><------>pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote beyond the nul-terminator\n",
<------><------><------>bufsize, fmt);
<------><------>return 1;
<------>}
 
<------>if (memcmp(test_buffer, expect, written)) {
<------><------>pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote '%s', expected '%.*s'\n",
<------><------><------>bufsize, fmt, test_buffer, written, expect);
<------><------>return 1;
<------>}
<------>return 0;
}
 
static void __printf(3, 4) __init
__test(const char *expect, int elen, const char *fmt, ...)
{
<------>va_list ap;
<------>int rand;
<------>char *p;
 
<------>if (elen >= BUF_SIZE) {
<------><------>pr_err("error in test suite: expected output length %d too long. Format was '%s'.\n",
<------><------>       elen, fmt);
<------><------>failed_tests++;
<------><------>return;
<------>}
 
<------>va_start(ap, fmt);
 
<------>/*
<------> * Every fmt+args is subjected to four tests: Three where we
<------> * tell vsnprintf varying buffer sizes (plenty, not quite
<------> * enough and 0), and then we also test that kvasprintf would
<------> * be able to print it as expected.
<------> */
<------>failed_tests += do_test(BUF_SIZE, expect, elen, fmt, ap);
<------>rand = 1 + prandom_u32_max(elen+1);
<------>/* Since elen < BUF_SIZE, we have 1 <= rand <= BUF_SIZE. */
<------>failed_tests += do_test(rand, expect, elen, fmt, ap);
<------>failed_tests += do_test(0, expect, elen, fmt, ap);
 
<------>p = kvasprintf(GFP_KERNEL, fmt, ap);
<------>if (p) {
<------><------>total_tests++;
<------><------>if (memcmp(p, expect, elen+1)) {
<------><------><------>pr_warn("kvasprintf(..., \"%s\", ...) returned '%s', expected '%s'\n",
<------><------><------><------>fmt, p, expect);
<------><------><------>failed_tests++;
<------><------>}
<------><------>kfree(p);
<------>}
<------>va_end(ap);
}
 
#define test(expect, fmt, ...)					\
<------>__test(expect, strlen(expect), fmt, ##__VA_ARGS__)
 
static void __init
test_basic(void)
{
<------>/* Work around annoying "warning: zero-length gnu_printf format string". */
<------>char nul = '\0';
 
<------>test("", &nul);
<------>test("100%", "100%%");
<------>test("xxx%yyy", "xxx%cyyy", '%');
<------>__test("xxx\0yyy", 7, "xxx%cyyy", '\0');
}
 
static void __init
test_number(void)
{
<------>test("0x1234abcd  ", "%#-12x", 0x1234abcd);
<------>test("  0x1234abcd", "%#12x", 0x1234abcd);
<------>test("0|001| 12|+123| 1234|-123|-1234", "%d|%03d|%3d|%+d|% d|%+d|% d", 0, 1, 12, 123, 1234, -123, -1234);
<------>test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1);
<------>test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1);
<------>test("2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627);
<------>/*
<------> * POSIX/C99: »The result of converting zero with an explicit
<------> * precision of zero shall be no characters.« Hence the output
<------> * from the below test should really be "00|0||| ". However,
<------> * the kernel's printf also produces a single 0 in that
<------> * case. This test case simply documents the current
<------> * behaviour.
<------> */
<------>test("00|0|0|0|0", "%.2d|%.1d|%.0d|%.*d|%1.0d", 0, 0, 0, 0, 0, 0);
#ifndef __CHAR_UNSIGNED__
<------>{
<------><------>/*
<------><------> * Passing a 'char' to a %02x specifier doesn't do
<------><------> * what was presumably the intention when char is
<------><------> * signed and the value is negative. One must either &
<------><------> * with 0xff or cast to u8.
<------><------> */
<------><------>char val = -16;
<------><------>test("0xfffffff0|0xf0|0xf0", "%#02x|%#02x|%#02x", val, val & 0xff, (u8)val);
<------>}
#endif
}
 
static void __init
test_string(void)
{
<------>test("", "%s%.0s", "", "123");
<------>test("ABCD|abc|123", "%s|%.3s|%.*s", "ABCD", "abcdef", 3, "123456");
<------>test("1  |  2|3  |  4|5  ", "%-3s|%3s|%-*s|%*s|%*s", "1", "2", 3, "3", 3, "4", -3, "5");
<------>test("1234      ", "%-10.4s", "123456");
<------>test("      1234", "%10.4s", "123456");
<------>/*
<------> * POSIX and C99 say that a negative precision (which is only
<------> * possible to pass via a * argument) should be treated as if
<------> * the precision wasn't present, and that if the precision is
<------> * omitted (as in %.s), the precision should be taken to be
<------> * 0. However, the kernel's printf behave exactly opposite,
<------> * treating a negative precision as 0 and treating an omitted
<------> * precision specifier as if no precision was given.
<------> *
<------> * These test cases document the current behaviour; should
<------> * anyone ever feel the need to follow the standards more
<------> * closely, this can be revisited.
<------> */
<------>test("    ", "%4.*s", -5, "123456");
<------>test("123456", "%.s", "123456");
<------>test("a||", "%.s|%.0s|%.*s", "a", "b", 0, "c");
<------>test("a  |   |   ", "%-3.s|%-3.0s|%-3.*s", "a", "b", 0, "c");
}
 
#define PLAIN_BUF_SIZE 64	/* leave some space so we don't oops */
 
#if BITS_PER_LONG == 64
 
#define PTR_WIDTH 16
#define PTR ((void *)0xffff0123456789abUL)
#define PTR_STR "ffff0123456789ab"
#define PTR_VAL_NO_CRNG "(____ptrval____)"
#define ZEROS "00000000"	/* hex 32 zero bits */
#define ONES "ffffffff"		/* hex 32 one bits */
 
static int __init
plain_format(void)
{
<------>char buf[PLAIN_BUF_SIZE];
<------>int nchars;
 
<------>nchars = snprintf(buf, PLAIN_BUF_SIZE, "%p", PTR);
 
<------>if (nchars != PTR_WIDTH)
<------><------>return -1;
 
<------>if (strncmp(buf, PTR_VAL_NO_CRNG, PTR_WIDTH) == 0) {
<------><------>pr_warn("crng possibly not yet initialized. plain 'p' buffer contains \"%s\"",
<------><------><------>PTR_VAL_NO_CRNG);
<------><------>return 0;
<------>}
 
<------>if (strncmp(buf, ZEROS, strlen(ZEROS)) != 0)
<------><------>return -1;
 
<------>return 0;
}
 
#else
 
#define PTR_WIDTH 8
#define PTR ((void *)0x456789ab)
#define PTR_STR "456789ab"
#define PTR_VAL_NO_CRNG "(ptrval)"
#define ZEROS ""
#define ONES ""
 
static int __init
plain_format(void)
{
<------>/* Format is implicitly tested for 32 bit machines by plain_hash() */
<------>return 0;
}
 
#endif	/* BITS_PER_LONG == 64 */
 
static int __init
plain_hash_to_buffer(const void *p, char *buf, size_t len)
{
<------>int nchars;
 
<------>nchars = snprintf(buf, len, "%p", p);
 
<------>if (nchars != PTR_WIDTH)
<------><------>return -1;
 
<------>if (strncmp(buf, PTR_VAL_NO_CRNG, PTR_WIDTH) == 0) {
<------><------>pr_warn("crng possibly not yet initialized. plain 'p' buffer contains \"%s\"",
<------><------><------>PTR_VAL_NO_CRNG);
<------><------>return 0;
<------>}
 
<------>return 0;
}
 
static int __init
plain_hash(void)
{
<------>char buf[PLAIN_BUF_SIZE];
<------>int ret;
 
<------>ret = plain_hash_to_buffer(PTR, buf, PLAIN_BUF_SIZE);
<------>if (ret)
<------><------>return ret;
 
<------>if (strncmp(buf, PTR_STR, PTR_WIDTH) == 0)
<------><------>return -1;
 
<------>return 0;
}
 
/*
 * We can't use test() to test %p because we don't know what output to expect
 * after an address is hashed.
 */
static void __init
plain(void)
{
<------>int err;
 
<------>if (no_hash_pointers) {
<------><------>pr_warn("skipping plain 'p' tests");
<------><------>skipped_tests += 2;
<------><------>return;
<------>}
 
<------>err = plain_hash();
<------>if (err) {
<------><------>pr_warn("plain 'p' does not appear to be hashed\n");
<------><------>failed_tests++;
<------><------>return;
<------>}
 
<------>err = plain_format();
<------>if (err) {
<------><------>pr_warn("hashing plain 'p' has unexpected format\n");
<------><------>failed_tests++;
<------>}
}
 
static void __init
test_hashed(const char *fmt, const void *p)
{
<------>char buf[PLAIN_BUF_SIZE];
<------>int ret;
 
<------>/*
<------> * No need to increase failed test counter since this is assumed
<------> * to be called after plain().
<------> */
<------>ret = plain_hash_to_buffer(p, buf, PLAIN_BUF_SIZE);
<------>if (ret)
<------><------>return;
 
<------>test(buf, fmt, p);
}
 
/*
 * NULL pointers aren't hashed.
 */
static void __init
null_pointer(void)
{
<------>test(ZEROS "00000000", "%p", NULL);
<------>test(ZEROS "00000000", "%px", NULL);
<------>test("(null)", "%pE", NULL);
}
 
/*
 * Error pointers aren't hashed.
 */
static void __init
error_pointer(void)
{
<------>test(ONES "fffffff5", "%p", ERR_PTR(-11));
<------>test(ONES "fffffff5", "%px", ERR_PTR(-11));
<------>test("(efault)", "%pE", ERR_PTR(-11));
}
 
#define PTR_INVALID ((void *)0x000000ab)
 
static void __init
invalid_pointer(void)
{
<------>test_hashed("%p", PTR_INVALID);
<------>test(ZEROS "000000ab", "%px", PTR_INVALID);
<------>test("(efault)", "%pE", PTR_INVALID);
}
 
static void __init
symbol_ptr(void)
{
}
 
static void __init
kernel_ptr(void)
{
<------>/* We can't test this without access to kptr_restrict. */
}
 
static void __init
struct_resource(void)
{
}
 
static void __init
addr(void)
{
}
 
static void __init
escaped_str(void)
{
}
 
static void __init
hex_string(void)
{
<------>const char buf[3] = {0xc0, 0xff, 0xee};
 
<------>test("c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee",
<------>     "%3ph|%3phC|%3phD|%3phN", buf, buf, buf, buf);
<------>test("c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee",
<------>     "%*ph|%*phC|%*phD|%*phN", 3, buf, 3, buf, 3, buf, 3, buf);
}
 
static void __init
mac(void)
{
<------>const u8 addr[6] = {0x2d, 0x48, 0xd6, 0xfc, 0x7a, 0x05};
 
<------>test("2d:48:d6:fc:7a:05", "%pM", addr);
<------>test("05:7a:fc:d6:48:2d", "%pMR", addr);
<------>test("2d-48-d6-fc-7a-05", "%pMF", addr);
<------>test("2d48d6fc7a05", "%pm", addr);
<------>test("057afcd6482d", "%pmR", addr);
}
 
static void __init
ip4(void)
{
<------>struct sockaddr_in sa;
 
<------>sa.sin_family = AF_INET;
<------>sa.sin_port = cpu_to_be16(12345);
<------>sa.sin_addr.s_addr = cpu_to_be32(0x7f000001);
 
<------>test("127.000.000.001|127.0.0.1", "%pi4|%pI4", &sa.sin_addr, &sa.sin_addr);
<------>test("127.000.000.001|127.0.0.1", "%piS|%pIS", &sa, &sa);
<------>sa.sin_addr.s_addr = cpu_to_be32(0x01020304);
<------>test("001.002.003.004:12345|1.2.3.4:12345", "%piSp|%pISp", &sa, &sa);
}
 
static void __init
ip6(void)
{
}
 
static void __init
ip(void)
{
<------>ip4();
<------>ip6();
}
 
static void __init
uuid(void)
{
<------>const char uuid[16] = {0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
<------><------><------>       0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf};
 
<------>test("00010203-0405-0607-0809-0a0b0c0d0e0f", "%pUb", uuid);
<------>test("00010203-0405-0607-0809-0A0B0C0D0E0F", "%pUB", uuid);
<------>test("03020100-0504-0706-0809-0a0b0c0d0e0f", "%pUl", uuid);
<------>test("03020100-0504-0706-0809-0A0B0C0D0E0F", "%pUL", uuid);
}
 
static struct dentry test_dentry[4] __initdata = {
<------>{ .d_parent = &test_dentry[0],
<------>  .d_name = QSTR_INIT(test_dentry[0].d_iname, 3),
<------>  .d_iname = "foo" },
<------>{ .d_parent = &test_dentry[0],
<------>  .d_name = QSTR_INIT(test_dentry[1].d_iname, 5),
<------>  .d_iname = "bravo" },
<------>{ .d_parent = &test_dentry[1],
<------>  .d_name = QSTR_INIT(test_dentry[2].d_iname, 4),
<------>  .d_iname = "alfa" },
<------>{ .d_parent = &test_dentry[2],
<------>  .d_name = QSTR_INIT(test_dentry[3].d_iname, 5),
<------>  .d_iname = "romeo" },
};
 
static void __init
dentry(void)
{
<------>test("foo", "%pd", &test_dentry[0]);
<------>test("foo", "%pd2", &test_dentry[0]);
 
<------>test("(null)", "%pd", NULL);
<------>test("(efault)", "%pd", PTR_INVALID);
<------>test("(null)", "%pD", NULL);
<------>test("(efault)", "%pD", PTR_INVALID);
 
<------>test("romeo", "%pd", &test_dentry[3]);
<------>test("alfa/romeo", "%pd2", &test_dentry[3]);
<------>test("bravo/alfa/romeo", "%pd3", &test_dentry[3]);
<------>test("/bravo/alfa/romeo", "%pd4", &test_dentry[3]);
<------>test("/bravo/alfa", "%pd4", &test_dentry[2]);
 
<------>test("bravo/alfa  |bravo/alfa  ", "%-12pd2|%*pd2", &test_dentry[2], -12, &test_dentry[2]);
<------>test("  bravo/alfa|  bravo/alfa", "%12pd2|%*pd2", &test_dentry[2], 12, &test_dentry[2]);
}
 
static void __init
struct_va_format(void)
{
}
 
static void __init
time_and_date(void)
{
<------>/* 1543210543 */
<------>const struct rtc_time tm = {
<------><------>.tm_sec = 43,
<------><------>.tm_min = 35,
<------><------>.tm_hour = 5,
<------><------>.tm_mday = 26,
<------><------>.tm_mon = 10,
<------><------>.tm_year = 118,
<------>};
<------>/* 2019-01-04T15:32:23 */
<------>time64_t t = 1546615943;
 
<------>test("(%pt?)", "%pt", &tm);
<------>test("2018-11-26T05:35:43", "%ptR", &tm);
<------>test("0118-10-26T05:35:43", "%ptRr", &tm);
<------>test("05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm);
<------>test("05:35:43|0118-10-26", "%ptRtr|%ptRdr", &tm, &tm);
<------>test("05:35:43|2018-11-26", "%ptRttr|%ptRdtr", &tm, &tm);
<------>test("05:35:43 tr|2018-11-26 tr", "%ptRt tr|%ptRd tr", &tm, &tm);
 
<------>test("2019-01-04T15:32:23", "%ptT", &t);
<------>test("0119-00-04T15:32:23", "%ptTr", &t);
<------>test("15:32:23|2019-01-04", "%ptTt|%ptTd", &t, &t);
<------>test("15:32:23|0119-00-04", "%ptTtr|%ptTdr", &t, &t);
}
 
static void __init
struct_clk(void)
{
}
 
static void __init
large_bitmap(void)
{
<------>const int nbits = 1 << 16;
<------>unsigned long *bits = bitmap_zalloc(nbits, GFP_KERNEL);
<------>if (!bits)
<------><------>return;
 
<------>bitmap_set(bits, 1, 20);
<------>bitmap_set(bits, 60000, 15);
<------>test("1-20,60000-60014", "%*pbl", nbits, bits);
<------>bitmap_free(bits);
}
 
static void __init
bitmap(void)
{
<------>DECLARE_BITMAP(bits, 20);
<------>const int primes[] = {2,3,5,7,11,13,17,19};
<------>int i;
 
<------>bitmap_zero(bits, 20);
<------>test("00000|00000", "%20pb|%*pb", bits, 20, bits);
<------>test("|", "%20pbl|%*pbl", bits, 20, bits);
 
<------>for (i = 0; i < ARRAY_SIZE(primes); ++i)
<------><------>set_bit(primes[i], bits);
<------>test("a28ac|a28ac", "%20pb|%*pb", bits, 20, bits);
<------>test("2-3,5,7,11,13,17,19|2-3,5,7,11,13,17,19", "%20pbl|%*pbl", bits, 20, bits);
 
<------>bitmap_fill(bits, 20);
<------>test("fffff|fffff", "%20pb|%*pb", bits, 20, bits);
<------>test("0-19|0-19", "%20pbl|%*pbl", bits, 20, bits);
 
<------>large_bitmap();
}
 
static void __init
netdev_features(void)
{
}
 
static void __init
flags(void)
{
<------>unsigned long flags;
<------>gfp_t gfp;
<------>char *cmp_buffer;
 
<------>flags = 0;
<------>test("", "%pGp", &flags);
 
<------>/* Page flags should filter the zone id */
<------>flags = 1UL << NR_PAGEFLAGS;
<------>test("", "%pGp", &flags);
 
<------>flags |= 1UL << PG_uptodate | 1UL << PG_dirty | 1UL << PG_lru
<------><------>| 1UL << PG_active | 1UL << PG_swapbacked;
<------>test("uptodate|dirty|lru|active|swapbacked", "%pGp", &flags);
 
 
<------>flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC
<------><------><------>| VM_DENYWRITE;
<------>test("read|exec|mayread|maywrite|mayexec|denywrite", "%pGv", &flags);
 
<------>gfp = GFP_TRANSHUGE;
<------>test("GFP_TRANSHUGE", "%pGg", &gfp);
 
<------>gfp = GFP_ATOMIC|__GFP_DMA;
<------>test("GFP_ATOMIC|GFP_DMA", "%pGg", &gfp);
 
<------>gfp = __GFP_ATOMIC;
<------>test("__GFP_ATOMIC", "%pGg", &gfp);
 
<------>cmp_buffer = kmalloc(BUF_SIZE, GFP_KERNEL);
<------>if (!cmp_buffer)
<------><------>return;
 
<------>/* Any flags not translated by the table should remain numeric */
<------>gfp = ~__GFP_BITS_MASK;
<------>snprintf(cmp_buffer, BUF_SIZE, "%#lx", (unsigned long) gfp);
<------>test(cmp_buffer, "%pGg", &gfp);
 
<------>snprintf(cmp_buffer, BUF_SIZE, "__GFP_ATOMIC|%#lx",
<------><------><------><------><------><------><------>(unsigned long) gfp);
<------>gfp |= __GFP_ATOMIC;
<------>test(cmp_buffer, "%pGg", &gfp);
 
<------>kfree(cmp_buffer);
}
 
static void __init fwnode_pointer(void)
{
<------>const struct software_node softnodes[] = {
<------><------>{ .name = "first", },
<------><------>{ .name = "second", .parent = &softnodes[0], },
<------><------>{ .name = "third", .parent = &softnodes[1], },
<------><------>{ NULL /* Guardian */ }
<------>};
<------>const char * const full_name = "first/second/third";
<------>const char * const full_name_second = "first/second";
<------>const char * const second_name = "second";
<------>const char * const third_name = "third";
<------>int rval;
 
<------>rval = software_node_register_nodes(softnodes);
<------>if (rval) {
<------><------>pr_warn("cannot register softnodes; rval %d\n", rval);
<------><------>return;
<------>}
 
<------>test(full_name_second, "%pfw", software_node_fwnode(&softnodes[1]));
<------>test(full_name, "%pfw", software_node_fwnode(&softnodes[2]));
<------>test(full_name, "%pfwf", software_node_fwnode(&softnodes[2]));
<------>test(second_name, "%pfwP", software_node_fwnode(&softnodes[1]));
<------>test(third_name, "%pfwP", software_node_fwnode(&softnodes[2]));
 
<------>software_node_unregister(&softnodes[2]);
<------>software_node_unregister(&softnodes[1]);
<------>software_node_unregister(&softnodes[0]);
}
 
static void __init
errptr(void)
{
<------>test("-1234", "%pe", ERR_PTR(-1234));
 
<------>/* Check that %pe with a non-ERR_PTR gets treated as ordinary %p. */
<------>BUILD_BUG_ON(IS_ERR(PTR));
<------>test_hashed("%pe", PTR);
 
#ifdef CONFIG_SYMBOLIC_ERRNAME
<------>test("(-ENOTSOCK)", "(%pe)", ERR_PTR(-ENOTSOCK));
<------>test("(-EAGAIN)", "(%pe)", ERR_PTR(-EAGAIN));
<------>BUILD_BUG_ON(EAGAIN != EWOULDBLOCK);
<------>test("(-EAGAIN)", "(%pe)", ERR_PTR(-EWOULDBLOCK));
<------>test("[-EIO    ]", "[%-8pe]", ERR_PTR(-EIO));
<------>test("[    -EIO]", "[%8pe]", ERR_PTR(-EIO));
<------>test("-EPROBE_DEFER", "%pe", ERR_PTR(-EPROBE_DEFER));
#endif
}
 
static void __init
test_pointer(void)
{
<------>plain();
<------>null_pointer();
<------>error_pointer();
<------>invalid_pointer();
<------>symbol_ptr();
<------>kernel_ptr();
<------>struct_resource();
<------>addr();
<------>escaped_str();
<------>hex_string();
<------>mac();
<------>ip();
<------>uuid();
<------>dentry();
<------>struct_va_format();
<------>time_and_date();
<------>struct_clk();
<------>bitmap();
<------>netdev_features();
<------>flags();
<------>errptr();
<------>fwnode_pointer();
}
 
static void __init selftest(void)
{
<------>alloced_buffer = kmalloc(BUF_SIZE + 2*PAD_SIZE, GFP_KERNEL);
<------>if (!alloced_buffer)
<------><------>return;
<------>test_buffer = alloced_buffer + PAD_SIZE;
 
<------>test_basic();
<------>test_number();
<------>test_string();
<------>test_pointer();
 
<------>kfree(alloced_buffer);
}
 
KSTM_MODULE_LOADERS(test_printf);
MODULE_AUTHOR("Rasmus Villemoes <linux@rasmusvillemoes.dk>");
MODULE_LICENSE("GPL");