Set xdp_prog pointer to NULL if bpf_prog_add fails since that routine
reports the error code instead of NULL in case of failure and xdp_prog
pointer value is used in the driver to verify if XDP is currently
enabled.
Moreover report the error code to userspace if nicvf_xdp_setup fails
Fixes:
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.. | ||
common | ||
liquidio | ||
octeon | ||
thunder | ||
Kconfig | ||
Makefile |