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kmemleak: use seq_hex_dump() to dump buffers 

Instead of custom approach let's use recently introduced seq_hex_dump()
helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Joe Perches <joe@perches.com>
Cc: Tadeusz Struk <tadeusz.struk@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
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 2015-09-09 15:38:45 -07:00 committed by Linus Torvalds
parent 5d2fe875c9
commit 6fc37c4900
1 changed files with 5 additions and 14 deletions
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19
mm/kmemleak.c
View File

@ -302,23 +302,14 @@ static void hex_dump_object(struct seq_file *seq,
struct kmemleak_object *object)
{
const u8 *ptr = (const u8 *)object->pointer;
int i, len, remaining;
unsigned char linebuf[HEX_ROW_SIZE * 5];
size_t len;
/* limit the number of lines to HEX_MAX_LINES */
remaining = len =
min(object->size, (size_t)(HEX_MAX_LINES * HEX_ROW_SIZE));
len = min_t(size_t, object->size, HEX_MAX_LINES * HEX_ROW_SIZE);
seq_printf(seq, " hex dump (first %d bytes):\n", len);
for (i = 0; i < len; i += HEX_ROW_SIZE) {
int linelen = min(remaining, HEX_ROW_SIZE);
remaining -= HEX_ROW_SIZE;
hex_dump_to_buffer(ptr + i, linelen, HEX_ROW_SIZE,
HEX_GROUP_SIZE, linebuf, sizeof(linebuf),
HEX_ASCII);
seq_printf(seq, " %s\n", linebuf);
}
seq_printf(seq, " hex dump (first %zu bytes):\n", len);
seq_hex_dump(seq, " ", DUMP_PREFIX_NONE, HEX_ROW_SIZE,
HEX_GROUP_SIZE, ptr, len, HEX_ASCII);
}
/*