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authorJiri Kosina <jkosina@suse.cz>2017-05-02 11:02:41 +0200
committerJiri Kosina <jkosina@suse.cz>2017-05-02 11:02:41 +0200
commit4d6ca227c768b50b05cf183974b40abe444e9d0c (patch)
treebf953d8e895281053548b9967a2c4b58d641df00 /arch/s390/net/bpf_jit_comp.c
parent800f3eef8ebc1264e9c135bfa892c8ae41fa4792 (diff)
parentaf22a610bc38508d5ea760507d31be6b6983dfa8 (diff)
Merge branch 'for-4.12/asus' into for-linus
Diffstat (limited to 'arch/s390/net/bpf_jit_comp.c')
-rw-r--r--arch/s390/net/bpf_jit_comp.c37
1 files changed, 4 insertions, 33 deletions
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 167b31b186c1..4ecf6d687509 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -1263,14 +1263,6 @@ static int bpf_jit_prog(struct bpf_jit *jit, struct bpf_prog *fp)
}
/*
- * Classic BPF function stub. BPF programs will be converted into
- * eBPF and then bpf_int_jit_compile() will be called.
- */
-void bpf_jit_compile(struct bpf_prog *fp)
-{
-}
-
-/*
* Compile eBPF program "fp"
*/
struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
@@ -1331,14 +1323,11 @@ 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);
}
+ bpf_jit_binary_lock_ro(header);
+ fp->bpf_func = (void *) jit.prg_buf;
+ fp->jited = 1;
free_addrs:
kfree(jit.addrs);
out:
@@ -1347,21 +1336,3 @@ out:
tmp : orig_fp);
return fp;
}
-
-/*
- * Free eBPF program
- */
-void bpf_jit_free(struct bpf_prog *fp)
-{
- unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
- struct bpf_binary_header *header = (void *)addr;
-
- if (!fp->jited)
- goto free_filter;
-
- set_memory_rw(addr, header->pages);
- bpf_jit_binary_free(header);
-
-free_filter:
- bpf_prog_unlock_free(fp);
-}