Hi,

Attached patch expands the LEN parameter of
invalidate_bp_value_on_memory_change to ssize_t to reflect the LEN that
is actually sent by write_memory_with_notification.  I have updated
observer.texi accordingly so that the observer function signatures are
correct (as well as the generated documentation).  No regressions
resulting from this change on x86_64.  OK to commit?

Regards,
Siddhesh

gdb/ChangeLog:

	* breakpoint.c (invalidate_bp_value_on_memory_change): Expand
	parameter LEN to ssize_t.

doc/ChangeLog:

	observer.texi (memory_changed): Expand parameter LEN to ssize_t.