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authorJakub Kicinski <jakub.kicinski@netronome.com>2018-03-28 17:48:33 -0700
committerAlexei Starovoitov <ast@kernel.org>2018-03-28 19:36:13 -0700
commite59ac634908f4ea90066e6db7dd7ae8ca02815ff (patch)
treea258186a27ba1cc4afa7823df80d828e79d74195
parentbfee64deaa766ba88ff42fcbced82ad4ef6cb315 (diff)
bpf: add parenthesis around argument of BPF_LDST_BYTES()
BPF_LDST_BYTES() does not put it's argument in parenthesis when referencing it. This makes it impossible to pass pointers obtained by address-of operator (e.g. BPF_LDST_BYTES(&insn)). Add the parenthesis. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
-rw-r--r--include/linux/filter.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 109d05ccea9a..c2f167db8bd5 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -372,7 +372,7 @@ struct xdp_rxq_info;
#define BPF_LDST_BYTES(insn) \
({ \
- const int __size = bpf_size_to_bytes(BPF_SIZE(insn->code)); \
+ const int __size = bpf_size_to_bytes(BPF_SIZE((insn)->code)); \
WARN_ON(__size < 0); \
__size; \
})