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| H A D | bpf_jit_comp.c | diff 18a45f12d746c06b7361b0cce59cf8e8b9e38da6 Fri Jan 19 11:25:28 CET 2024 Hou Tao <houtao1@huawei.com> bpf, arm64: Enable the inline of bpf_kptr_xchg()
ARM64 bpf jit satisfies the following two conditions:
1) support BPF_XCHG() on pointer-sized word.
2) the implementation of xchg is the same as atomic_xchg() on
pointer-sized words. Both of these two functions use arch_xchg() to
implement the exchange.
So enable the inline of bpf_kptr_xchg() for arm64 bpf jit.
Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20240119102529.99581-2-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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