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s390/bpf: remove redundant check for non-null image 

After we already allocated the jit.prg_buf image via
bpf_jit_binary_alloc() and filled it out with instructions,
jit.prg_buf cannot be NULL anymore. Thus, remove the
unnecessary check. Tested on s390x with test_bpf module.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Daniel Borkmann 2017-01-14 01:48:24 +01:00 committed by Martin Schwidefsky
parent 21665912dd
commit 9437964885
1 changed files with 4 additions and 7 deletions
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11
arch/s390/net/bpf_jit_comp.c
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@ -1331,14 +1331,11 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
}
if (bpf_jit_enable > 1) {
bpf_jit_dump(fp->len, jit.size, pass, jit.prg_buf);
if (jit.prg_buf)
print_fn_code(jit.prg_buf, jit.size_prg);
}
if (jit.prg_buf) {
set_memory_ro((unsigned long)header, header->pages);
fp->bpf_func = (void *) jit.prg_buf;
fp->jited = 1;
print_fn_code(jit.prg_buf, jit.size_prg);
}
set_memory_ro((unsigned long)header, header->pages);
fp->bpf_func = (void *) jit.prg_buf;
fp->jited = 1;
free_addrs:
kfree(jit.addrs);
out: