bpf, x86/arm64: remove useless checks on prog

There is never such a situation, where bpf_int_jit_compile() is
called with either prog as NULL or len as 0, so the tests are
unnecessary and confusing as people would just copy them. s390
doesn't have them, so no change is needed there.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index b405bbb..ef35e86 100644 (file)
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -772,9 +772,6 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
        if (!bpf_jit_enable)
                return;
 
-       if (!prog || !prog->len)
-               return;
-
        memset(&ctx, 0, sizeof(ctx));
        ctx.prog = prog;
 

diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 4286f36..f5bfd4f 100644 (file)
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -1086,9 +1086,6 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
        if (!bpf_jit_enable)
                return;
 
-       if (!prog || !prog->len)
-               return;
-
        addrs = kmalloc(prog->len * sizeof(*addrs), GFP_KERNEL);
        if (!addrs)
                return;