[PATCH net] ARM: net: make BPF_LD | BPF_IND instruction trigger r_X initialisation to 0.
davem at davemloft.net
Mon Oct 5 07:01:55 PDT 2015
From: Nicolas Schichan <nschichan at freebox.fr>
Date: Fri, 2 Oct 2015 15:39:12 +0200
> Without this patch, if the only instructions using r_X are of the
> BPF_LD | BPF_IND type, r_X would not be reset to 0, using whatever
> value was there when entering the jited code. With this patch, r_X
> will be correctly marked as used so it will be reset to 0 in the
> prologue code.
> This fix also makes the test "LD_IND byte default X" pass in the
> test_bpf module when the ARM JIT is enabled.
> Signed-off-by: Nicolas Schichan <nschichan at freebox.fr>
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