diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2017-01-13 18:10:00 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-01-25 03:34:24 +0100 |
| commit | 052de33ca4f840bf35587eacdf78b3bf8d347bb8 (patch) | |
| tree | 1e16978608a91987f8bd5e04e44c136739e61393 /arch/powerpc/net | |
| parent | cxl: Prevent read/write to AFU config space while AFU not configured (diff) | |
| download | linux-052de33ca4f840bf35587eacdf78b3bf8d347bb8.tar.xz linux-052de33ca4f840bf35587eacdf78b3bf8d347bb8.zip | |
powerpc/bpf: Remove redundant check for non-null image
We have a check earlier to ensure we don't proceed if image is NULL. As
such, the redundant check can be removed.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
[Added similar changes for classic BPF JIT]
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/net')
| -rw-r--r-- | arch/powerpc/net/bpf_jit_comp.c | 17 | ||||
| -rw-r--r-- | arch/powerpc/net/bpf_jit_comp64.c | 16 |
2 files changed, 17 insertions, 16 deletions
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c index 7e706f36e364..f9941b3b5770 100644 --- a/arch/powerpc/net/bpf_jit_comp.c +++ b/arch/powerpc/net/bpf_jit_comp.c @@ -662,16 +662,17 @@ void bpf_jit_compile(struct bpf_prog *fp) */ bpf_jit_dump(flen, proglen, pass, code_base); - if (image) { - bpf_flush_icache(code_base, code_base + (proglen/4)); + bpf_flush_icache(code_base, code_base + (proglen/4)); + #ifdef CONFIG_PPC64 - /* Function descriptor nastiness: Address + TOC */ - ((u64 *)image)[0] = (u64)code_base; - ((u64 *)image)[1] = local_paca->kernel_toc; + /* Function descriptor nastiness: Address + TOC */ + ((u64 *)image)[0] = (u64)code_base; + ((u64 *)image)[1] = local_paca->kernel_toc; #endif - fp->bpf_func = (void *)image; - fp->jited = 1; - } + + fp->bpf_func = (void *)image; + fp->jited = 1; + out: kfree(addrs); return; diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index 73a5cf18fd84..935a10f77cfe 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -1046,16 +1046,16 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp) */ bpf_jit_dump(flen, proglen, pass, code_base); - if (image) { - bpf_flush_icache(bpf_hdr, image + alloclen); + bpf_flush_icache(bpf_hdr, image + alloclen); + #ifdef PPC64_ELF_ABI_v1 - /* Function descriptor nastiness: Address + TOC */ - ((u64 *)image)[0] = (u64)code_base; - ((u64 *)image)[1] = local_paca->kernel_toc; + /* Function descriptor nastiness: Address + TOC */ + ((u64 *)image)[0] = (u64)code_base; + ((u64 *)image)[1] = local_paca->kernel_toc; #endif - fp->bpf_func = (void *)image; - fp->jited = 1; - } + + fp->bpf_func = (void *)image; + fp->jited = 1; out: kfree(addrs); |