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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-09-11 11:51:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-09-11 11:51:26 +0200 |
| commit | ffb45b46184f54bf84d95e82df46932294b2031a (patch) | |
| tree | cc199e0ec572fb2bf65fa4eb144f0e562bb34687 /arch/riscv | |
| parent | 5eccd39d8efa3bc8d557be50f202bbf023837eed (diff) | |
| parent | a300e35c0a4b4a38fb53742ea6e2a203c98ee523 (diff) | |
| download | linux-rolling-stable.tar.gz linux-rolling-stable.zip | |
Merge v7.2.5linux-rolling-stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/net/bpf_jit_comp64.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c index f9d5347ba966..0942116e59bc 100644 --- a/arch/riscv/net/bpf_jit_comp64.c +++ b/arch/riscv/net/bpf_jit_comp64.c @@ -2114,7 +2114,15 @@ bool bpf_jit_supports_ptr_xchg(void) bool bpf_jit_supports_arena(void) { - return true; + /* + * The arena range tree uses kmalloc_nolock(), which needs + * cmpxchg128, provided by ZACAS on riscv. + */ +#ifdef system_has_cmpxchg128 + return system_has_cmpxchg128(); +#else + return false; +#endif } bool bpf_jit_supports_insn(struct bpf_insn *insn, bool in_arena) |