tree 414c7731a5a4743cbdba6583a1b79f3723ec190d
parent 5d909c8d54b114eddb7c50506f03bf7309a9192e
author Andy Shevchenko <andriy.shevchenko@linux.intel.com> 1423782149 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1423796055 -0800

hexdump: make it return number of bytes placed in buffer

This patch makes hexdump return the number of bytes placed in the buffer
excluding trailing NUL.  In the case of overflow it returns the desired
amount of bytes to produce the entire dump.  Thus, it mimics snprintf().

This will be useful for users that would like to repeat with a bigger
buffer.

[akpm@linux-foundation.org: fix printk warning]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>