[PATCH v2] build: remove obsolete compiler checks

David Marchand david.marchand at redhat.com
Tue Aug 19 10:10:21 CEST 2025


Hello Bruce,

On Fri, Jul 25, 2025 at 6:07 PM Bruce Richardson
<bruce.richardson at intel.com> wrote:
> diff --git a/drivers/net/virtio/meson.build b/drivers/net/virtio/meson.build
> index d3caa3a3b4..a9ff87e863 100644
> --- a/drivers/net/virtio/meson.build
> +++ b/drivers/net/virtio/meson.build
> @@ -31,7 +31,7 @@ if arch_subdir == 'x86'
>          sources_avx512 += files('virtio_rxtx_packed.c')
>          if (toolchain == 'gcc' and cc.version().version_compare('>=8.3.0'))
>              cflags += '-DVIRTIO_GCC_UNROLL_PRAGMA'
> -        elif (toolchain == 'clang' and cc.version().version_compare('>=3.7.0'))
> +        elif (toolchain == 'clang')
>              cflags += '-DVIRTIO_CLANG_UNROLL_PRAGMA'
>          endif
>      endif

[snip]

> diff --git a/lib/vhost/meson.build b/lib/vhost/meson.build
> index 9c6325aa0e..a74d0cff7c 100644
> --- a/lib/vhost/meson.build
> +++ b/lib/vhost/meson.build
> @@ -8,9 +8,9 @@ endif
>  if has_libnuma
>      dpdk_conf.set10('RTE_LIBRTE_VHOST_NUMA', true)
>  endif
> -if (toolchain == 'gcc' and cc.version().version_compare('>=8.3.0'))
> +if (toolchain == 'gcc')
>      cflags += '-DVHOST_GCC_UNROLL_PRAGMA'
> -elif (toolchain == 'clang' and cc.version().version_compare('>=3.7.0'))
> +elif (toolchain == 'clang')
>      cflags += '-DVHOST_CLANG_UNROLL_PRAGMA'
>  endif
>  dpdk_conf.set('RTE_LIBRTE_VHOST_POSTCOPY', cc.has_header('linux/userfaultfd.h'))

Sorry, I did not notice in the v1, but lib/vhost and
drivers/net/virtio have the same construct, yet only lib/vhost gets
updated on the gcc version check in this patch.
Is this intentional?

Since GCC 8.0+ is recommended, I would keep the version check in both
vhost and net/virtio.

Other than this, it lgtm.
Reviewed-by: David Marchand <david.marchand at redhat.com>


-- 
David Marchand



More information about the dev mailing list