warnings when including DPDK headers from a C++17 source file

["Montorsi, Francesco" <fmontorsi@empirix.com>]

Hi all,


I just noticed that, because of the removal of the "register" keyword in C++17, when I compile my DPDK-enabled code with -std=c++17 I get the following:



In file included from ../../../Third-Party/cpp-libs/dpdk/include/rte_ether.h:53:0,
                 from ../../../Third-Party/cpp-libs/dpdk/include/rte_ethdev.h:186,
                 from HwEmulCaptureDPDK.cpp:43:
../../../Third-Party/cpp-libs/dpdk/include/rte_byteorder.h: In function 'uint16_t rte_arch_bswap16(uint16_t)':
../../../Third-Party/cpp-libs/dpdk/include/rte_byteorder.h:57:20: warning: ISO C++1z does not allow 'register' storage class specifier [-Wregister]
  register uint16_t x = _x;
                    ^
../../../Third-Party/cpp-libs/dpdk/include/rte_byteorder.h: In function 'uint32_t rte_arch_bswap32(uint32_t)':
../../../Third-Party/cpp-libs/dpdk/include/rte_byteorder.h:72:20: warning: ISO C++1z does not allow 'register' storage class specifier [-Wregister]
  register uint32_t x = _x;
                    ^
In file included from ../../../Third-Party/cpp-libs/dpdk/include/rte_byteorder.h:121:0,
                 from ../../../Third-Party/cpp-libs/dpdk/include/rte_ether.h:53,
                 from ../../../Third-Party/cpp-libs/dpdk/include/rte_ethdev.h:186,
                 from HwEmulCaptureDPDK.cpp:43:
../../../Third-Party/cpp-libs/dpdk/include/rte_byteorder_64.h: In function 'uint64_t rte_arch_bswap64(uint64_t)':
../../../Third-Party/cpp-libs/dpdk/include/rte_byteorder_64.h:52:20: warning: ISO C++1z does not allow 'register' storage class specifier [-Wregister]
  register uint64_t x = _x;
                    ^


?Just thought to let you know... that's a small issue for me since I'm using -Werror


Thanks,
Francesco