linux-kernel - Re: [PATCH] selftests: net: tls: remove unused variable and code

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Date:   Fri, 5 Nov 2021 13:47:35 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Anders Roxell <anders.roxell@...aro.org>
Cc:     davem@...emloft.net, kuba@...nel.org, shuah@...nel.org,
        nathan@...nel.org, netdev@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH] selftests: net: tls: remove unused variable and code

On Fri, Nov 5, 2021 at 9:45 AM Anders Roxell <anders.roxell@...aro.org> wrote:
>
> When building selftests/net with clang, the compiler warn about the
> function abs() see below:
>
> tls.c:657:15: warning: variable 'len_compared' set but not used [-Wunused-but-set-variable]
>         unsigned int len_compared = 0;
>                      ^
>
> Rework to remove the unused variable and the for-loop where the variable
> 'len_compared' was assinged.
>
> Signed-off-by: Anders Roxell <anders.roxell@...aro.org>

Thanks for the patch. Hard to say what the original intent was here.

Fixes: 7f657d5bf507 ("selftests: tls: add selftests for TLS sockets")
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

> ---
>  tools/testing/selftests/net/tls.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
> index d3047e251fe9..e61fc4c32ba2 100644
> --- a/tools/testing/selftests/net/tls.c
> +++ b/tools/testing/selftests/net/tls.c
> @@ -654,7 +654,6 @@ TEST_F(tls, recvmsg_single_max)
>  TEST_F(tls, recvmsg_multiple)
>  {
>         unsigned int msg_iovlen = 1024;
> -       unsigned int len_compared = 0;
>         struct iovec vec[1024];
>         char *iov_base[1024];
>         unsigned int iov_len = 16;
> @@ -675,8 +674,6 @@ TEST_F(tls, recvmsg_multiple)
>         hdr.msg_iovlen = msg_iovlen;
>         hdr.msg_iov = vec;
>         EXPECT_NE(recvmsg(self->cfd, &hdr, 0), -1);
> -       for (i = 0; i < msg_iovlen; i++)
> -               len_compared += iov_len;
>
>         for (i = 0; i < msg_iovlen; i++)
>                 free(iov_base[i]);
> --
> 2.33.0
>


-- 
Thanks,
~Nick Desaulniers