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| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2017-03-27 21:37:41 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-17 15:04:47 +0200 |
| commit | 6acdc9a6bad9f23771d24baca763141a24ead6cb (patch) | |
| tree | f9c328318fdc82b5e7ecf21d2defc2ecce475ed7 /arch/powerpc/net | |
| parent | powerpc/string: Implement optimized memset variants (diff) | |
| download | linux-6acdc9a6bad9f23771d24baca763141a24ead6cb.tar.xz linux-6acdc9a6bad9f23771d24baca763141a24ead6cb.zip | |
powerpc/bpf: Use memset32() to pre-fill traps in BPF page(s)
Use the newly introduced memset32() to pre-fill BPF page(s) with trap
instructions.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/net')
| -rw-r--r-- | arch/powerpc/net/bpf_jit_comp64.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index 861c5af1c9c4..6ba5d253e857 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -25,11 +25,7 @@ int bpf_jit_enable __read_mostly; static void bpf_jit_fill_ill_insns(void *area, unsigned int size) { - int *p = area; - - /* Fill whole space with trap instructions */ - while (p < (int *)((char *)area + size)) - *p++ = BREAKPOINT_INSTRUCTION; + memset32(area, BREAKPOINT_INSTRUCTION, size/4); } static inline void bpf_flush_icache(void *start, void *end) |