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2022-07-12samples/bpf: Fix xdp_redirect_map egress devmap progJesper Dangaard Brouer1-2/+4
LLVM compiler optimized out the memcpy in xdp_redirect_map_egress, which caused the Ethernet source MAC-addr to always be zero when enabling the devmap egress prog via cmdline --load-egress. Issue observed with LLVM version 14.0.0 - Shipped with Fedora 36 on target: x86_64-redhat-linux-gnu. In verbose mode print the source MAC-addr in case xdp_devmap_attached mode is used. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/165754826292.575614.5636444052787717159.stgit@firesoul
2022-02-01samples/bpf: Update cpumap/devmap sec_nameLorenzo Bianconi1-1/+1
Substitute deprecated xdp_cpumap and xdp_devmap sec_name with xdp/cpumap and xdp/devmap respectively. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/509201497c6c4926bc941f1cba24173cf500e760.1643727185.git.lorenzo@kernel.org
2021-08-25samples: bpf: Convert xdp_redirect_map_kern.o to XDP samples helperKumar Kartikeya Dwivedi1-0/+95
Also update it to use consistent SEC("xdp") and SEC("xdp_devmap") naming, and use global variable instead of BPF map for copying the mac address. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210821002010.845777-20-memxor@gmail.com
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