On 5/19/2021 12:54 PM, Chengwen Feng wrote:
> Compile error with gcc8.3 and crossfile arm64_thunderx2_linux_gcc:
> ../drivers/net/hns3/hns3_rxtx_vec_sve.c
> cc1: error: switch ‘-mcpu=armv8.1-a’ conflicts with
> ‘-march=armv8.2-a’ switch [-Werror]
> ../drivers/net/hns3/hns3_rxtx_vec_sve.c:5:10: fatal error:
> arm_sve.h: No such file or directory
> 5 | #include <arm_sve.h>
>
> The root cause is that gcc8.3 supports SVE, but it doesn't support
> compile ACLE[1] SVE code, and the hns3_rxtx_vec_sve.c was written
> by ACLE SVE code.
>
> This patch also filters out '-march=' '-mcpu' '-mtune' when compile
> with hns3_rxtx_vec_sve.c.
>
> [1] ACLE: Arm C Language Extensions, user should include <arm_sve.h>
> when writing ACLE SVE code.
>
> Fixes: 203fbaf8813d ("net/hns3: refactor SVE code compile method")
>
> Signed-off-by: Chengwen Feng <fengcheng...@huawei.com>
Hi Chengwen,
We need CI result to proceed with the patch, since I don't have arm platfrom to
test this properly.
But in the CI applying patch fails, I guess that is because the original patch
has been dropped in the next-net.
Can you please send a new version of the patch rebased on top of latest
next-net?
