Commits on Mar 16, 2020

1. bpf: explicitly zero-initialize data field in struct bpf_lpm_trie_key …

   Fixes the following warning/error when compiling with -Wextra enabled:
   
   lib/eps.h:65:43: error: missing field 'data' initializer [-Werror,-Wmissing-field-initializers]
                   .lpm_key = { IPCACHE_PREFIX_LEN(prefix) },
                                                           ^
   lib/eps.h:79:43: error: missing field 'data' initializer [-Werror,-Wmissing-field-initializers]
                   .lpm_key = { IPCACHE_PREFIX_LEN(prefix) },
   
   Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

   

   tklauser committed Mar 16, 2020
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2. bpf: fix -Wsign-compare warning …

   Fix the following warnings by casting ifindex:
   
   include/bpf/ctx/xdp.h:203:14: error: comparison of integers of different signs: 'int' and '__u32' (aka 'unsigned int') [-Werror,-Wsign-compare]
           if (ifindex != ctx->ingress_ifindex)
               ~~~~~~~ ^  ~~~~~~~~~~~~~~~~~~~~
   
   Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

   

   tklauser committed Mar 16, 2020
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3. bpf: mark all potentially unused parameters with __maybe_unused …

   This allows to enable extra warnings/errors with -Wextra when compiling
   bpf programs.
   
   Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

   

   tklauser committed Mar 16, 2020
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