Merge branch 's390-bpf-jit-fixes'

Daniel Borkmann says: ==================== Two BPF fixes for s390 Found while testing some other work touching JITs. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Aug 4, 2017 · 7a97325 · 7a97325
2 parents 1aff0c3 + bad1926
commit 7a97325
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Showing 3 changed files with 6 additions and 1 deletion.
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
@@ -1253,7 +1253,8 @@ static int bpf_jit_prog(struct bpf_jit *jit, struct bpf_prog *fp)
 		insn_count = bpf_jit_insn(jit, fp, i);
 		if (insn_count < 0)
 			return -1;
-		jit->addrs[i + 1] = jit->prg; /* Next instruction address */
+		/* Next instruction address */
+		jit->addrs[i + insn_count] = jit->prg;
 	}
 	bpf_jit_epilogue(jit);
 

diff --git a/tools/build/feature/test-bpf.c b/tools/build/feature/test-bpf.c
@@ -11,6 +11,8 @@
 #  define __NR_bpf 280
 # elif defined(__sparc__)
 #  define __NR_bpf 349
+# elif defined(__s390__)
+#  define __NR_bpf 351
 # else
 #  error __NR_bpf not defined. libbpf does not support your arch.
 # endif

diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
@@ -39,6 +39,8 @@
 #  define __NR_bpf 280
 # elif defined(__sparc__)
 #  define __NR_bpf 349
+# elif defined(__s390__)
+#  define __NR_bpf 351
 # else
 #  error __NR_bpf not defined. libbpf does not support your arch.
 # endif