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| author | Daniel Borkmann <dborkman@redhat.com> | 2014-09-10 15:01:02 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-10 14:05:07 -0700 |
| commit | b954d83421d51d822c42e5ab7b65069b25ad3005 (patch) | |
| tree | 0a419ab76ac8abbc459472b7c5b79800bc3cdc45 /kernel/bpf | |
| parent | 17fa1f983649580772e95ee95e2c096baa650219 (diff) | |
| download | linux-b954d83421d51d822c42e5ab7b65069b25ad3005.tar.gz linux-b954d83421d51d822c42e5ab7b65069b25ad3005.tar.bz2 linux-b954d83421d51d822c42e5ab7b65069b25ad3005.zip | |
net: bpf: only build bpf_jit_binary_{alloc, free}() when jit selected
Since BPF JIT depends on the availability of module_alloc() and
module_free() helpers (HAVE_BPF_JIT and MODULES), we better build
that code only in case we have BPF_JIT in our config enabled, just
like with other JIT code. Fixes builds for arm/marzen_defconfig
and sh/rsk7269_defconfig.
====================
kernel/built-in.o: In function `bpf_jit_binary_alloc':
/home/cwang/linux/kernel/bpf/core.c:144: undefined reference to `module_alloc'
kernel/built-in.o: In function `bpf_jit_binary_free':
/home/cwang/linux/kernel/bpf/core.c:164: undefined reference to `module_free'
make: *** [vmlinux] Error 1
====================
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Fixes: 738cbe72adc5 ("net: bpf: consolidate JIT binary allocator")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 8ee520f0ec70..8b7002488251 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -128,6 +128,7 @@ void __bpf_prog_free(struct bpf_prog *fp) } EXPORT_SYMBOL_GPL(__bpf_prog_free); +#ifdef CONFIG_BPF_JIT struct bpf_binary_header * bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr, unsigned int alignment, @@ -163,6 +164,7 @@ void bpf_jit_binary_free(struct bpf_binary_header *hdr) { module_free(NULL, hdr); } +#endif /* CONFIG_BPF_JIT */ /* Base function for offset calculation. Needs to go into .text section, * therefore keeping it non-static as well; will also be used by JITs |