From: Adrien Mazarguil Date: Thu, 8 Sep 2016 12:25:04 +0000 (+0200) Subject: lib: use C99 syntax for zero-size arrays X-Git-Tag: spdx-start~6012 X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=347a1e037fd323e6c2af55d17f7f0dc4bfe1d479 lib: use C99 syntax for zero-size arrays Exported header files used by applications should allow the strictest compiler flags. Language extensions used in many places must be explicitly marked or removed to avoid warnings and compilation failures. The extension keyword is used whenever the C99 syntax cannot do it. This commit prevents the following errors: error: ISO C forbids zero-size array `[...]' Signed-off-by: Adrien Mazarguil --- diff --git a/lib/librte_acl/rte_acl.h b/lib/librte_acl/rte_acl.h index 8d4e2a6817..caa91f7eab 100644 --- a/lib/librte_acl/rte_acl.h +++ b/lib/librte_acl/rte_acl.h @@ -144,7 +144,7 @@ struct rte_acl_rule_data { struct rte_acl_field field[fld_num]; \ } -RTE_ACL_RULE_DEF(rte_acl_rule, 0); +RTE_ACL_RULE_DEF(rte_acl_rule,); #define RTE_ACL_RULE_SZ(fld_num) \ (sizeof(struct rte_acl_rule) + sizeof(struct rte_acl_field) * (fld_num)) diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h index affbdecc89..1e30a1978c 100644 --- a/lib/librte_cryptodev/rte_cryptodev.h +++ b/lib/librte_cryptodev/rte_cryptodev.h @@ -759,7 +759,7 @@ struct rte_cryptodev_sym_session { } __rte_aligned(8); /**< Public symmetric session details */ - char _private[0]; + char _private[]; /**< Private session material */ }; diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.h b/lib/librte_cryptodev/rte_cryptodev_pmd.h index 7d049ea38b..42e7b799d0 100644 --- a/lib/librte_cryptodev/rte_cryptodev_pmd.h +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h @@ -71,7 +71,7 @@ struct rte_cryptodev_session { struct rte_mempool *mp; } __rte_aligned(8); - char _private[0]; + __extension__ char _private[0]; }; struct rte_cryptodev_driver; diff --git a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h index 2acdfd9bc5..7f458a3608 100644 --- a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h +++ b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h @@ -102,7 +102,7 @@ struct rte_kni_fifo { volatile unsigned read; /**< Next position to be read */ unsigned len; /**< Circular buffer length */ unsigned elem_size; /**< Pointer size - for 32/64 bit OS */ - void * volatile buffer[0]; /**< The buffer contains mbuf pointers */ + void *volatile buffer[]; /**< The buffer contains mbuf pointers */ }; /* diff --git a/lib/librte_hash/rte_fbk_hash.h b/lib/librte_hash/rte_fbk_hash.h index a430961d0e..bd46048f9f 100644 --- a/lib/librte_hash/rte_fbk_hash.h +++ b/lib/librte_hash/rte_fbk_hash.h @@ -115,7 +115,7 @@ struct rte_fbk_hash_table { uint32_t init_val; /**< For initialising hash function. */ /** A flat table of all buckets. */ - union rte_fbk_hash_entry t[0]; + union rte_fbk_hash_entry t[]; }; /** diff --git a/lib/librte_ip_frag/rte_ip_frag.h b/lib/librte_ip_frag/rte_ip_frag.h index 9ac7081c04..69596ab48a 100644 --- a/lib/librte_ip_frag/rte_ip_frag.h +++ b/lib/librte_ip_frag/rte_ip_frag.h @@ -124,7 +124,7 @@ struct rte_ip_frag_tbl { struct ip_frag_pkt *last; /**< last used entry. */ struct ip_pkt_list lru; /**< LRU list for table entries. */ struct ip_frag_tbl_stat stat; /**< statistics counters. */ - struct ip_frag_pkt pkt[0]; /**< hash table. */ + struct ip_frag_pkt pkt[]; /**< hash table. */ }; /** IPv6 fragment extension header */ diff --git a/lib/librte_lpm/rte_lpm.h b/lib/librte_lpm/rte_lpm.h index dbe5483c20..f872757254 100644 --- a/lib/librte_lpm/rte_lpm.h +++ b/lib/librte_lpm/rte_lpm.h @@ -193,7 +193,7 @@ struct rte_lpm_v20 { __rte_cache_aligned; /**< LPM tbl24 table. */ struct rte_lpm_tbl_entry_v20 tbl8[RTE_LPM_TBL8_NUM_ENTRIES] __rte_cache_aligned; /**< LPM tbl8 table. */ - struct rte_lpm_rule_v20 rules_tbl[0] \ + struct rte_lpm_rule_v20 rules_tbl[] __rte_cache_aligned; /**< LPM rules. */ }; diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index 7ea66ed9c6..7ae6554906 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -756,8 +756,11 @@ const char *rte_get_tx_ol_flag_name(uint64_t mask); /* define a set of marker types that can be used to refer to set points in the * mbuf */ +__extension__ typedef void *MARKER[0]; /**< generic marker for a point in a structure */ +__extension__ typedef uint8_t MARKER8[0]; /**< generic marker with 1B alignment */ +__extension__ typedef uint64_t MARKER64[0]; /**< marker that allows us to overwrite 8 bytes * with a single assignment */ diff --git a/lib/librte_pipeline/rte_pipeline.h b/lib/librte_pipeline/rte_pipeline.h index 84d1802518..b0b46152e0 100644 --- a/lib/librte_pipeline/rte_pipeline.h +++ b/lib/librte_pipeline/rte_pipeline.h @@ -252,7 +252,7 @@ struct rte_pipeline_table_entry { uint32_t table_id; }; /** Start of table entry area for user defined actions and meta-data */ - uint8_t action_data[0]; + __extension__ uint8_t action_data[0]; }; /** diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h index 0e22e6946f..dfe07a24d2 100644 --- a/lib/librte_ring/rte_ring.h +++ b/lib/librte_ring/rte_ring.h @@ -187,7 +187,7 @@ struct rte_ring { struct rte_ring_debug_stats stats[RTE_MAX_LCORE]; #endif - void * ring[0] __rte_cache_aligned; /**< Memory space of ring starts here. + void *ring[] __rte_cache_aligned; /**< Memory space of ring starts here. * not volatile so need to be careful * about compiler re-ordering */ }; diff --git a/lib/librte_sched/rte_bitmap.h b/lib/librte_sched/rte_bitmap.h index ff675c5803..1b5df0218e 100644 --- a/lib/librte_sched/rte_bitmap.h +++ b/lib/librte_sched/rte_bitmap.h @@ -103,7 +103,7 @@ struct rte_bitmap { uint32_t go2; /**< Bitmap scan: Go/stop condition for current array2 cache line */ /* Storage space for array1 and array2 */ - uint8_t memory[0]; + uint8_t memory[]; }; static inline void