Commit 3c2611bac08a("selftests/bpf: Fix trace_virtqueue_add_sgs test issue with LLVM 17")
workarounds the verification failure by using asm code with '__sink' macro to
prevent certain llvm optimization.
This patch added proper support in verifier so workaround is not
necessary any more. So remove these workarounds.
Signed-off-by: Yonghong Song <yhs@xxxxxx>
---
tools/testing/selftests/bpf/progs/loop6.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/tools/testing/selftests/bpf/progs/loop6.c b/tools/testing/selftests/bpf/progs/loop6.c
index e4ff97fbcce1..a13bee928b27 100644
--- a/tools/testing/selftests/bpf/progs/loop6.c
+++ b/tools/testing/selftests/bpf/progs/loop6.c
@@ -77,7 +77,6 @@ int BPF_KPROBE(trace_virtqueue_add_sgs, void *unused, struct scatterlist **sgs,
return 0;
for (i = 0; (i < VIRTIO_MAX_SGS) && (i < out_sgs); i++) {
- __sink(out_sgs);
for (n = 0, sgp = get_sgp(sgs, i); sgp && (n < SG_MAX);
sgp = __sg_next(sgp)) {
bpf_probe_read_kernel(&len, sizeof(len), &sgp->length);
@@ -87,7 +86,6 @@ int BPF_KPROBE(trace_virtqueue_add_sgs, void *unused, struct scatterlist **sgs,
}
for (i = 0; (i < VIRTIO_MAX_SGS) && (i < in_sgs); i++) {
- __sink(in_sgs);
for (n = 0, sgp = get_sgp(sgs, i); sgp && (n < SG_MAX);
sgp = __sg_next(sgp)) {
bpf_probe_read_kernel(&len, sizeof(len), &sgp->length);
--
2.34.1
