linux-kernel - Re: [PATCH net-next v1 12/12] test/vsock: io

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Message-ID: <kfuzqzhrgdk5f5arbq4n3vd6vro6533aeysqhdgqevcqxrdm6e@57ylpkc2t4q4>
Date:   Tue, 26 Sep 2023 15:04:31 +0200
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     Arseniy Krasnov <avkrasnov@...utedevices.com>
Cc:     Stefan Hajnoczi <stefanha@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Bobby Eshleman <bobby.eshleman@...edance.com>,
        kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...rdevices.ru, oxffffaa@...il.com
Subject: Re: [PATCH net-next v1 12/12] test/vsock: io_uring rx/tx tests

On Fri, Sep 22, 2023 at 08:24:28AM +0300, Arseniy Krasnov wrote:
>This adds set of tests which use io_uring for rx/tx. This test suite is
>implemented as separated util like 'vsock_test' and has the same set of
>input arguments as 'vsock_test'. These tests only cover cases of data
>transmission (no connect/bind/accept etc).
>
>Signed-off-by: Arseniy Krasnov <avkrasnov@...utedevices.com>
>---
> Changelog:
> v5(big patchset) -> v1:
>  * Use LDLIBS instead of LDFLAGS.
>
> tools/testing/vsock/Makefile           |   7 +-
> tools/testing/vsock/vsock_uring_test.c | 321 +++++++++++++++++++++++++
> 2 files changed, 327 insertions(+), 1 deletion(-)
> create mode 100644 tools/testing/vsock/vsock_uring_test.c
>
>diff --git a/tools/testing/vsock/Makefile b/tools/testing/vsock/Makefile
>index 1a26f60a596c..c84380bfc18d 100644
>--- a/tools/testing/vsock/Makefile
>+++ b/tools/testing/vsock/Makefile
>@@ -1,12 +1,17 @@
> # SPDX-License-Identifier: GPL-2.0-only
>+ifeq ($(MAKECMDGOALS),vsock_uring_test)
>+LDLIBS = -luring
>+endif
>+

This will fails if for example we call make with more targets,
e.g. `make vsock_test vsock_uring_test`.

I'd suggest to use something like this:

--- a/tools/testing/vsock/Makefile
+++ b/tools/testing/vsock/Makefile
@@ -1,13 +1,11 @@
  # SPDX-License-Identifier: GPL-2.0-only
-ifeq ($(MAKECMDGOALS),vsock_uring_test)
-LDLIBS = -luring
-endif
-
  all: test vsock_perf
  test: vsock_test vsock_diag_test
  vsock_test: vsock_test.o vsock_test_zerocopy.o timeout.o control.o util.o
  vsock_diag_test: vsock_diag_test.o timeout.o control.o util.o
  vsock_perf: vsock_perf.o
+
+vsock_uring_test: LDLIBS = -luring
  vsock_uring_test: control.o util.o vsock_uring_test.o timeout.o

  CFLAGS += -g -O2 -Werror -Wall -I. -I../../include -I../../../usr/include -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -D_GNU_SOURCE

> all: test vsock_perf
> test: vsock_test vsock_diag_test
> vsock_test: vsock_test.o vsock_test_zerocopy.o timeout.o control.o util.o
> vsock_diag_test: vsock_diag_test.o timeout.o control.o util.o
> vsock_perf: vsock_perf.o
>+vsock_uring_test: control.o util.o vsock_uring_test.o timeout.o

Shoud we add this new test to the "test" target as well?

Stefano