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| author | Kevin Hilman <khilman@linaro.org> | 2015-08-04 12:25:55 -0700 |
|---|---|---|
| committer | Kevin Hilman <khilman@linaro.org> | 2015-08-04 12:25:55 -0700 |
| commit | faefdddc4f71cd099a82ac24055a51438b1ee66a (patch) | |
| tree | 5fafda6ea8c4cd128b8d1980184238cbb69f0688 /arch/x86/net/bpf_jit_comp.c | |
| parent | 0c9561b6f843fad1954e32ed780842f9b6750938 (diff) | |
| parent | 69483e398f196d87ca3289f31ad3291bad94af60 (diff) | |
Merge branch 'linux-linaro-lsk-v3.14' into linux-linaro-lsk-v3.14-androidlinux-linaro-lsk-v3.14-android-test
Diffstat (limited to 'arch/x86/net/bpf_jit_comp.c')
| -rw-r--r-- | arch/x86/net/bpf_jit_comp.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c index af2d4317b218..1fed139f8eae 100644 --- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -211,7 +211,12 @@ void bpf_jit_compile(struct sk_filter *fp) } cleanup_addr = proglen; /* epilogue address */ - for (pass = 0; pass < 10; pass++) { + /* JITed image shrinks with every pass and the loop iterates + * until the image stops shrinking. Very large bpf programs + * may converge on the last pass. In such case do one more + * pass to emit the final image + */ + for (pass = 0; pass < 10 || image; pass++) { u8 seen_or_pass0 = (pass == 0) ? (SEEN_XREG | SEEN_DATAREF | SEEN_MEM) : seen; /* no prologue/epilogue for trivial filters (RET something) */ proglen = 0; |