On Tue, 2019-06-25 at 13:17 +1000, Alastair D'Silva wrote:

From: Alastair D'Silva <redacted>

Apologies for the large CC list, it's a heads up for those responsible
for subsystems where a prototype change in generic code causes a change
in those subsystems.

[]

The default behaviour of hexdump is unchanged, however, the prototype
for hex_dump_to_buffer() has changed, and print_hex_dump() has been
renamed to print_hex_dump_ext(), with a wrapper replacing it for
compatibility with existing code, which would have been too invasive to
change.

I believe this cover letter is misleading.

The point of the wrapper is to avoid unnecessary changes
in existing
code.