On Mon, Aug 29, 2022 at 02:38:41PM +0800, Song Chen wrote: > I tried to build tools/test/memblock and got such message: > > /usr/bin/ld: slab.o: in function `kmalloc': > slab.c:(.text+0x2b): undefined reference to `uatomic_inc' > /usr/bin/ld: slab.o: in function `kfree': > slab.c:(.text+0x97): undefined reference to `uatomic_dec' > collect2: error: ld returned 1 exit status > > I could find any definition or inplememtation of uatomic_inc/uatomic_dec > in anywhere of the code base. So I use atomic_inc/atomic_dec_and_test > to replace like other tests underneath tools/test, it works. They are defined in liburcu headers, in Debian they are found in liburcu-dev package. > Signed-off-by: Song Chen <chensong_2000@xxxxxx> > --- -- Sincerely yours, Mike.