[dpdk-dev] [PATCH 2/3] event/octeontx: fix compilation for gcc < 4.6

[Ferruh Yigit <ferruh.yigit@intel.com>]

-Ofast option supported from gcc4.6 [1], for older versions using
"-O3 -ffast-math" instead.

[1] build error:
cc1: error: invalid option argument ‘-Ofast’

Also struct initialization build error [2] fixed.

[2] build error:
.../event/octeontx/ssovf_mbox.c: In function ‘mbox_send_request’:
.../event/octeontx/ssovf_mbox.c:95:9: error: unknown field ‘u64’
specified in initializer

Fixes: 32ff26393bb2 ("event/octeontx: add SSO HW device operations")

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 drivers/event/octeontx/Makefile     | 9 +++++++++
 drivers/event/octeontx/ssovf_mbox.c | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/event/octeontx/Makefile b/drivers/event/octeontx/Makefile
index b26e35b..aca3d09 100644
--- a/drivers/event/octeontx/Makefile
+++ b/drivers/event/octeontx/Makefile
@@ -50,10 +50,19 @@ SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF) += ssovf_worker.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF) += ssovf_evdev.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF) += ssovf_probe.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF) += ssovf_mbox.c
+
 ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
 CFLAGS_ssovf_worker.o += -fno-prefetch-loop-arrays
+
+ifeq ($(shell test $(GCC_VERSION) -ge 46 && echo 1), 1)
+CFLAGS_ssovf_worker.o += -Ofast
+else
+CFLAGS_ssovf_worker.o += -O3 -ffast-math
 endif
+
+else
 CFLAGS_ssovf_worker.o += -Ofast
+endif
 
 # install this header file
 SYMLINK-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF)-include := rte_pmd_octeontx_ssovf.h
diff --git a/drivers/event/octeontx/ssovf_mbox.c b/drivers/event/octeontx/ssovf_mbox.c
index 0435f6d..f42969c 100644
--- a/drivers/event/octeontx/ssovf_mbox.c
+++ b/drivers/event/octeontx/ssovf_mbox.c
@@ -92,7 +92,7 @@ mbox_send_request(struct mbox *m, struct octeontx_mbox_hdr *hdr,
 			const void *txmsg, uint16_t txsize)
 {
 	struct mbox_ram_hdr old_hdr;
-	struct mbox_ram_hdr new_hdr = {.u64 = 0};
+	struct mbox_ram_hdr new_hdr = {{0}};
 	uint64_t *ram_mbox_hdr = (uint64_t *)m->ram_mbox_base;
 	uint8_t *ram_mbox_msg = m->ram_mbox_base + sizeof(struct mbox_ram_hdr);
 
-- 
2.9.3