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-rw-r--r--arch/s390/net/bpf_jit_comp.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index ccb83ac3e6f3..b2b8eb62b82e 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -2839,6 +2839,9 @@ static int __arch_prepare_bpf_trampoline(struct bpf_tramp_image *im,
/* stg %r2,retval_off(%r15) */
EMIT6_DISP_LH(0xe3000000, 0x0024, REG_2, REG_0, REG_15,
tjit->retval_off);
+ /* mvc tccnt_off(%r15),tail_call_cnt(4,%r15) */
+ _EMIT6(0xd203f000 | tjit->tccnt_off,
+ 0xf000 | offsetof(struct prog_frame, tail_call_cnt));
im->ip_after_call = jit->prg_buf + jit->prg;