nvdimm: constify device_type structures

Declare device_type structure as const as it is only stored in the
type field of a device structure. This field is of type const, so add
const to declaration of device_type structure.

File size before:
  text	   data	    bss	    dec	    hex	filename
  19278	   3199	     16	  22493	   57dd	nvdimm/namespace_devs.o

File size after:
  text	   data	    bss	    dec	    hex	filename
  19929	   3160	     16	  23105	   5a41	nvdimm/namespace_devs.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

path: root/tools/perf/util/demangle-rust.h

#ifndef __PERF_DEMANGLE_RUST
#define __PERF_DEMANGLE_RUST 1

bool rust_is_mangled(const char *str);
void rust_demangle_sym(char *str);

#endif /* __PERF_DEMANGLE_RUST */