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cifs: convert to print_hex_dump() instead of custom implementation

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This patch converts custom dumper to use native print_hex_dump() instead. The
cifs_dump_mem() will have an offsets per each line which differs it from the
original code.

In the dump_smb() we may use native print_hex_dump() as well. It will show
slightly different output in ASCII part when character is unprintable,
otherwise it keeps same structure.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Steve French <steve.french@primarydata.com>
This commit is contained in:
Andy Shevchenko 2014-08-27 16:49:43 +03:00 committed by Steve French
parent 28e2aed244
commit 55d83e0dbb
2 changed files with 4 additions and 49 deletions
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21
fs/cifs/cifs_debug.c
View File

@ -34,27 +34,10 @@
void
cifs_dump_mem(char *label, void *data, int length)
{
int i, j;
int *intptr = data;
char *charptr = data;
char buf[10], line[80];
printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n",
label, length, data);
for (i = 0; i < length; i += 16) {
line[0] = 0;
for (j = 0; (j < 4) && (i + j * 4 < length); j++) {
sprintf(buf, " %08x", intptr[i / 4 + j]);
strcat(line, buf);
}
buf[0] = ' ';
buf[2] = 0;
for (j = 0; (j < 16) && (i + j < length); j++) {
buf[1] = isprint(charptr[i + j]) ? charptr[i + j] : '.';
strcat(line, buf);
}
printk(KERN_DEBUG "%s\n", line);
}
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 4,
data, length, true);
}
#ifdef CONFIG_CIFS_DEBUG

32
fs/cifs/misc.c
View File

@ -513,39 +513,11 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
void
dump_smb(void *buf, int smb_buf_length)
{
int i, j;
char debug_line[17];
unsigned char *buffer = buf;
if (traceSMB == 0)
return;
for (i = 0, j = 0; i < smb_buf_length; i++, j++) {
if (i % 8 == 0) {
/* have reached the beginning of line */
printk(KERN_DEBUG "| ");
j = 0;
}
printk("%0#4x ", buffer[i]);
debug_line[2 * j] = ' ';
if (isprint(buffer[i]))
debug_line[1 + (2 * j)] = buffer[i];
else
debug_line[1 + (2 * j)] = '_';
if (i % 8 == 7) {
/* reached end of line, time to print ascii */
debug_line[16] = 0;
printk(" | %s\n", debug_line);
}
}
for (; j < 8; j++) {
printk(" ");
debug_line[2 * j] = ' ';
debug_line[1 + (2 * j)] = ' ';
}
printk(" | %s\n", debug_line);
return;
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_NONE, 8, 2, buf,
smb_buf_length, true);
}
void