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test_hexdump: introduce test_hexdump_prepare_test() helper 

The function prepares the expected result in the provided buffer.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Shevchenko 2016-01-20 14:58:47 -08:00 committed by Linus Torvalds
parent 60b2e8f4f7
commit 87977ca6bc
1 changed files with 19 additions and 7 deletions
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26
lib/test_hexdump.c
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@ -42,19 +42,16 @@ static const char * const test_data_8_le[] __initconst = {
"e9ac0f9cad319ca6", "0cafb1439919d14c", "e9ac0f9cad319ca6", "0cafb1439919d14c",
}; };
static void __init test_hexdump(size_t len, int rowsize, int groupsize, static void __init test_hexdump_prepare_test(size_t len, int rowsize,
bool ascii) int groupsize, char *test,
size_t testlen, bool ascii)
{ {
char test[32 * 3 + 2 + 32 + 1];
char real[32 * 3 + 2 + 32 + 1];
char *p; char *p;
const char * const *result; const char * const *result;
size_t l = len; size_t l = len;
int gs = groupsize, rs = rowsize; int gs = groupsize, rs = rowsize;
unsigned int i; unsigned int i;
hex_dump_to_buffer(data_b, l, rs, gs, real, sizeof(real), ascii);
if (rs != 16 && rs != 32) if (rs != 16 && rs != 32)
rs = 16; rs = 16;
@ -73,7 +70,7 @@ static void __init test_hexdump(size_t len, int rowsize, int groupsize,
else else
result = test_data_1_le; result = test_data_1_le;
memset(test, ' ', sizeof(test)); memset(test, ' ', testlen);
/* hex dump */ /* hex dump */
p = test; p = test;
@ -95,6 +92,21 @@ static void __init test_hexdump(size_t len, int rowsize, int groupsize,
} }
*p = '\0'; *p = '\0';
}
#define TEST_HEXDUMP_BUF_SIZE (32 * 3 + 2 + 32 + 1)
static void __init test_hexdump(size_t len, int rowsize, int groupsize,
bool ascii)
{
char test[TEST_HEXDUMP_BUF_SIZE];
char real[TEST_HEXDUMP_BUF_SIZE];
hex_dump_to_buffer(data_b, len, rowsize, groupsize, real, sizeof(real),
ascii);
test_hexdump_prepare_test(len, rowsize, groupsize, test, sizeof(test),
ascii);
if (strcmp(test, real)) { if (strcmp(test, real)) {
pr_err("Len: %zu row: %d group: %d\n", len, rowsize, groupsize); pr_err("Len: %zu row: %d group: %d\n", len, rowsize, groupsize);