On Wed, Jan 27, 2021 at 12:41:47PM +0800, Tiezhu Yang wrote: > Fix the following build error when make M=samples/bpf used with Clang: > > CLANG-bpf samples/bpf/sockex2_kern.o > In file included from samples/bpf/sockex2_kern.c:7: > In file included from ./include/uapi/linux/if_tunnel.h:7: > In file included from ./include/linux/ip.h:16: > In file included from ./include/linux/skbuff.h:28: > In file included from ./include/net/checksum.h:22: > ./arch/mips/include/asm/checksum.h:161:9: error: unsupported inline asm: input with type 'unsigned long' matching output with type '__wsum' (aka 'unsigned int') > : "0" ((__force unsigned long)daddr), > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ > 1 error generated. > > This is a known issue on MIPS [1], the changed code can be compiled > successfully by both GCC and Clang. > > [1] https://lore.kernel.org/linux-mips/CAG_fn=W0JHf8QyUX==+rQMp8PoULHrsQCa9Htffws31ga8k-iw@xxxxxxxxxxxxxx/ > > Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> > --- > arch/mips/include/asm/checksum.h | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) applied to mips-next. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
