在 2021/1/8 16:25, Ruifeng Wang 写道:
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 appending required flag to cflags instead of
overriding it.

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

Signed-off-by: Ruifeng Wang <ruifeng.w...@arm.com>
---
  drivers/net/hns3/meson.build | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hns3/meson.build b/drivers/net/hns3/meson.build
index 45cee34d9..798086357 100644
--- a/drivers/net/hns3/meson.build
+++ b/drivers/net/hns3/meson.build
@@ -32,7 +32,7 @@ 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']
+               cflags += ['-DCC_SVE_SUPPORT']
Hi
I noticed this patch, but I checked that the hns3 driver did not use this function.How did you compile it?

Thanks
Lijun Ou
                sources += files('hns3_rxtx_vec_sve.c')
        endif
  endif

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