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authorIlya Leoshkevich <iii@linux.ibm.com>2019-11-18 21:03:40 +0300
committerAlexei Starovoitov <ast@kernel.org>2019-11-19 06:51:16 +0300
commitd1242b10ff03a40ae095e6dd54aac4a6f0f547d5 (patch)
treeeac6b55040cf06b2d4e3c2fb1836e019ceaf70d5 /arch/s390/net
parentb25c57b6b7dda3799aaebc5f463776e4a0555927 (diff)
downloadlinux-d1242b10ff03a40ae095e6dd54aac4a6f0f547d5.tar.xz
s390/bpf: Remove JITed image size limitations
Now that jump and long displacement ranges are no longer a problem, remove the limit on JITed image size. In practice it's still limited by 2G, but with verifier allowing "only" 1M instructions, it's not an issue. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191118180340.68373-7-iii@linux.ibm.com
Diffstat (limited to 'arch/s390/net')
-rw-r--r--arch/s390/net/bpf_jit_comp.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 3398cd939496..8d2134136290 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -52,8 +52,6 @@ struct bpf_jit {
int labels[1]; /* Labels for local jumps */
};
-#define BPF_SIZE_MAX 0xffff /* Max size for program (16 bit branches) */
-
#define SEEN_MEM BIT(0) /* use mem[] for temporary storage */
#define SEEN_LITERAL BIT(1) /* code uses literals */
#define SEEN_FUNC BIT(2) /* calls C functions */
@@ -1631,11 +1629,6 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
/*
* Final pass: Allocate and generate program
*/
- if (jit.size >= BPF_SIZE_MAX) {
- fp = orig_fp;
- goto free_addrs;
- }
-
header = bpf_jit_binary_alloc(jit.size, &jit.prg_buf, 8, jit_fill_hole);
if (!header) {
fp = orig_fp;