From: Tiezhu Yang Date: Thu, 19 Dec 2024 11:15:06 +0000 (+0800) Subject: selftests/bpf: Use asm constraint "m" for LoongArch X-Git-Tag: v6.1.122~18 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48d07e3a18cdde5d1a732a746e7e51c0e652aa06;p=thirdparty%2Fkernel%2Fstable.git selftests/bpf: Use asm constraint "m" for LoongArch commit 29d44cce324dab2bd86c447071a596262e7109b6 upstream. Currently, LoongArch LLVM does not support the constraint "o" and no plan to support it, it only supports the similar constraint "m", so change the constraints from "nor" in the "else" case to arch-specific "nmr" to avoid the build error such as "unexpected asm memory constraint" for LoongArch. Fixes: 630301b0d59d ("selftests/bpf: Add basic USDT selftests") Suggested-by: Weining Lu Suggested-by: Li Chen Signed-off-by: Tiezhu Yang Signed-off-by: Daniel Borkmann Reviewed-by: Huacai Chen Cc: stable@vger.kernel.org Link: https://llvm.org/docs/LangRef.html#supported-constraint-code-list Link: https://github.com/llvm/llvm-project/blob/main/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp#L172 Link: https://lore.kernel.org/bpf/20241219111506.20643-1-yangtiezhu@loongson.cn Signed-off-by: Greg Kroah-Hartman --- diff --git a/tools/testing/selftests/bpf/sdt.h b/tools/testing/selftests/bpf/sdt.h index ca0162b4dc575..1fcfa5160231d 100644 --- a/tools/testing/selftests/bpf/sdt.h +++ b/tools/testing/selftests/bpf/sdt.h @@ -102,6 +102,8 @@ # define STAP_SDT_ARG_CONSTRAINT nZr # elif defined __arm__ # define STAP_SDT_ARG_CONSTRAINT g +# elif defined __loongarch__ +# define STAP_SDT_ARG_CONSTRAINT nmr # else # define STAP_SDT_ARG_CONSTRAINT nor # endif