build error with icc version 17.0.4 (gcc version 7.0.0 compatibility):
In file included from .../dpdk/lib/librte_hash/rte_fbk_hash.h(59),
from .../dpdk/lib/librte_hash/rte_fbk_hash.c(54):
.../dpdk/x86_64-native-linuxapp-icc/include/rte_hash_crc.h(480):
error #1292: unknown attribute "fallthrough"
__attribute__ ((fallthrough));
^
In file included from .../dpdk/lib/librte_hash/rte_fbk_hash.h(59),
from .../dpdk/lib/librte_hash/rte_fbk_hash.c(54):
.../dpdk/x86_64-native-linuxapp-icc/include/rte_hash_crc.h(486):
error #1292: unknown attribute "fallthrough"
__attribute__ ((fallthrough));
^
This code patch hit when gcc > 7 installed and ICC doesn't recognize
fallthrough attribute.
Fixed by disabling code when compiled with ICC.
Fixes: 3dfb9facb055 ("lib: add switch fall-through comments")
Signed-off-by: Ferruh Yigit <ferruh.yi...@intel.com>
---
This can be merged with the patch fixes gcc build error.
Cc: Bruce Richardson <bruce.richard...@intel.com>
---
lib/librte_hash/rte_hash_crc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/librte_hash/rte_hash_crc.h b/lib/librte_hash/rte_hash_crc.h
index 0f485b854..b8a0cbefb 100644
--- a/lib/librte_hash/rte_hash_crc.h
+++ b/lib/librte_hash/rte_hash_crc.h
@@ -476,13 +476,13 @@ rte_hash_crc_set_alg(uint8_t alg)
case CRC32_SSE42_x64:
if (! rte_cpu_get_flag_enabled(RTE_CPUFLAG_EM64T))
alg = CRC32_SSE42;
-#if __GNUC__ >= 7
+#if __GNUC__ >= 7 && !defined(RTE_TOOLCHAIN_ICC)
__attribute__ ((fallthrough));
#endif
case CRC32_SSE42:
if (! rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_2))
alg = CRC32_SW;
-#if __GNUC__ >= 7
+#if __GNUC__ >= 7 && !defined(RTE_TOOLCHAIN_ICC)
__attribute__ ((fallthrough));
#endif
#endif
--
2.13.0
