| Message ID | 20180724133337.20175-1-brian.brooks@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | [bpf-next] samples/bpf: xdpsock: order memory on AArch64 | expand |
diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 5904b1543831..1e82f7c617c3 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -145,8 +145,13 @@ static void dump_stats(void); } while (0) #define barrier() __asm__ __volatile__("": : :"memory") +#ifdef __aarch64__ +#define u_smp_rmb() __asm__ __volatile__("dmb ishld": : :"memory") +#define u_smp_wmb() __asm__ __volatile__("dmb ishst": : :"memory") +#else #define u_smp_rmb() barrier() #define u_smp_wmb() barrier() +#endif #define likely(x) __builtin_expect(!!(x), 1) #define unlikely(x) __builtin_expect(!!(x), 0)
Signed-off-by: Brian Brooks <brian.brooks@linaro.org> --- samples/bpf/xdpsock_user.c | 5 +++++ 1 file changed, 5 insertions(+) -- 2.18.0