[dpdk-dev] [PATCH v3 2/5] net/hns3: fix build with sve enabled

[Ruifeng Wang]

Building with SVE extension enabled stopped with error:

 error: ACLE function ‘svwhilelt_b64_s32’ requires ISA extension ‘sve’
   18 | #define PG64_256BIT  svwhilelt_b64(0, 4)

This is caused by unintentional cflags reset.
Fixed the issue by not touching cflags, and using flags defined by
compiler.

Fixes: 952ebacce4f2 ("net/hns3: support SVE Rx")
Cc: sta...@dpdk.org

Signed-off-by: Ruifeng Wang <ruifeng.w...@arm.com>
---
v3:
Removed extra flag, use compiler flag instead.

 drivers/net/hns3/hns3_rxtx.c | 4 ++--
 drivers/net/hns3/meson.build | 1 -
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c
index 88d3baba4..5ac36b314 100644
--- a/drivers/net/hns3/hns3_rxtx.c
+++ b/drivers/net/hns3/hns3_rxtx.c
@@ -10,7 +10,7 @@
 #include <rte_io.h>
 #include <rte_net.h>
 #include <rte_malloc.h>
-#if defined(RTE_ARCH_ARM64) && defined(CC_SVE_SUPPORT)
+#if defined(RTE_ARCH_ARM64) && defined(__ARM_FEATURE_SVE)
 #include <rte_cpuflags.h>
 #endif
 
@@ -2467,7 +2467,7 @@ hns3_rx_burst_mode_get(struct rte_eth_dev *dev, 
__rte_unused uint16_t queue_id,
 static bool
 hns3_check_sve_support(void)
 {
-#if defined(RTE_ARCH_ARM64) && defined(CC_SVE_SUPPORT)
+#if defined(RTE_ARCH_ARM64) && defined(__ARM_FEATURE_SVE)
        if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SVE))
                return true;
 #endif
diff --git a/drivers/net/hns3/meson.build b/drivers/net/hns3/meson.build
index 45cee34d9..5674d986b 100644
--- a/drivers/net/hns3/meson.build
+++ b/drivers/net/hns3/meson.build
@@ -32,7 +32,6 @@ deps += ['hash']
 if arch_subdir == 'arm' and dpdk_conf.get('RTE_ARCH_64')
        sources += files('hns3_rxtx_vec.c')
        if cc.get_define('__ARM_FEATURE_SVE', args: machine_args) != ''
-               cflags = ['-DCC_SVE_SUPPORT']
                sources += files('hns3_rxtx_vec_sve.c')
        endif
 endif
-- 
2.25.1