From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 55d83e0dbb3ed91e05b11ef32afb30acfbf8ba45 ]
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@xxxxxxxxxxxxxxx>
Signed-off-by: Steve French <steve.french@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
fs/cifs/cifs_debug.c | 21 ++-------------------
fs/cifs/misc.c | 32 ++------------------------------
2 files changed, 4 insertions(+), 49 deletions(-)
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 44ec726..ba0f7c8 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -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
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index b7415d5..3379463 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -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
--
2.5.0
--
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