diff options
| author | Chenguang Zhao <zhaochenguang@kylinos.cn> | 2026-08-17 22:07:39 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2026-08-17 22:07:39 +0800 |
| commit | 1fec6bbc09e3066a0f39d85741df2a7877c97945 (patch) | |
| tree | db4efe16399e7b1483d28f1115f851a45f5d5c0f /arch/loongarch/net | |
| parent | 576412d98297bd0b3b837c20643ab2e1ba54766f (diff) | |
LoongArch: BPF: Advertise JIT support for kptr xchg inline
The BPF verifier can lower bpf_kptr_xchg() to BPF_XCHG when the JIT
advertises ptr xchg support. With ordered amswap_db.* emission from the
previous patch, declare that LoongArch bpf JIT supports this inlining.
Acked-by: Hengqi Chen <hengqi.chen@gmail.com>
Acked-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Chenguang Zhao <zhaochenguang@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/net')
| -rw-r--r-- | arch/loongarch/net/bpf_jit.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c index e11f9c9dbe1a..d2ce187d1e23 100644 --- a/arch/loongarch/net/bpf_jit.c +++ b/arch/loongarch/net/bpf_jit.c @@ -2371,6 +2371,11 @@ bool bpf_jit_supports_fsession(void) return true; } +bool bpf_jit_supports_ptr_xchg(void) +{ + return true; +} + /* Indicate the JIT backend supports mixing bpf2bpf and tailcalls. */ bool bpf_jit_supports_subprog_tailcalls(void) { |