Re: [PATCH bpf-next v2] samples/bpf: xdp_redirect_cpu: set MAX_CPUS according to NR_CPUS

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On 5/12/20 9:30 AM, Lorenzo Bianconi wrote:
xdp_redirect_cpu is currently failing in bpf_prog_load_xattr()
allocating cpu_map map if CONFIG_NR_CPUS is less than 64 since
cpu_map_alloc() requires max_entries to be less than NR_CPUS.
Set cpu_map max_entries according to NR_CPUS in xdp_redirect_cpu_kern.c
and get currently running cpus in xdp_redirect_cpu_user.c

Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>

Acked-by: Yonghong Song <yhs@xxxxxx>






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