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Message-ID: <508F8779.8070300@linaro.org>
Date: Tue, 30 Oct 2012 08:53:29 +0100
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: Viresh Kumar <viresh.kumar@...aro.org>
CC: Ben Hutchings <bhutchings@...arflare.com>, netdev@...r.kernel.org,
linaro-dev@...ts.linaro.org, davem@...emloft.net,
linux-kernel@...r.kernel.org, patches@...aro.org
Subject: Re: [PATCH] net: dsa/slave: Fix compilation warnings
On 10/30/2012 08:31 AM, Viresh Kumar wrote:
> On 30 October 2012 12:15, Viresh Kumar <viresh.kumar@...aro.org> wrote:
>> And so, if we select NET_DSA from these tagging drivers, then only slave.c will
>> get compiled. Otherwise slave.c dsa.c dsa_core.c wouldn't be compiled and so
>> no warnings.
>
> If my above explanation/assumption is correct, then please review following
> patch:
>
> --------------------------x-----------------------x----------------
>
> From: Viresh Kumar <viresh.kumar@...aro.org>
> Date: Mon, 29 Oct 2012 22:19:14 +0530
> Subject: [PATCH] net: dsa/slave: Fix compilation warnings
>
> Currently when none of CONFIG_NET_DSA_TAG_DSA, CONFIG_NET_DSA_TAG_EDSA and
> CONFIG_NET_DSA_TAG_TRAILER is defined, we get following compilation warnings:
>
> net/dsa/slave.c:51:12: warning: 'dsa_slave_init' defined but not used
> [-Wunused-function]
> net/dsa/slave.c:60:12: warning: 'dsa_slave_open' defined but not used
> [-Wunused-function]
> net/dsa/slave.c:98:12: warning: 'dsa_slave_close' defined but not used
> [-Wunused-function]
> net/dsa/slave.c:116:13: warning: 'dsa_slave_change_rx_flags' defined
> but not used [-Wunused-function]
> net/dsa/slave.c:127:13: warning: 'dsa_slave_set_rx_mode' defined but
> not used [-Wunused-function]
> net/dsa/slave.c:136:12: warning: 'dsa_slave_set_mac_address' defined
> but not used [-Wunused-function]
> net/dsa/slave.c:164:12: warning: 'dsa_slave_ioctl' defined but not
> used [-Wunused-function]
>
> Earlier approach to fix this was discussed here:
>
> lkml.org/lkml/2012/10/29/549
>
> This is another approach to fix it. This is done by some changes in config
> options, which make more sense than the earlier approach. As, atleast one
> tagging option must always be selected for using net/dsa/ infrastructure, this
> patch selects NET_DSA from tagging configs instead of having it as an selectable
> config.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> ---
> drivers/net/dsa/Kconfig | 1 -
> net/dsa/Kconfig | 16 +++++++++-------
> 2 files changed, 9 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
> index dd151d5..96eae22 100644
> --- a/drivers/net/dsa/Kconfig
> +++ b/drivers/net/dsa/Kconfig
> @@ -1,5 +1,4 @@
> menu "Distributed Switch Architecture drivers"
> - depends on NET_DSA
>
> config NET_DSA_MV88E6XXX
> tristate
> diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
> index 274791c..f7c6cef 100644
> --- a/net/dsa/Kconfig
> +++ b/net/dsa/Kconfig
> @@ -1,5 +1,5 @@
> config NET_DSA
> - tristate "Distributed Switch Architecture support"
> + tristate
> default n
> depends on EXPERIMENTAL && NETDEVICES && !S390
> select PHYLIB
> @@ -8,19 +8,21 @@ config NET_DSA
> the Distributed Switch Architecture.
>
>
> -if NET_DSA
> +menu "Distributed Switch Architecture support"
>
> # tagging formats
> config NET_DSA_TAG_DSA
> - bool
> + bool "Original DSA packet tagging format"
> + select NET_DSt
typo NET_DSA
> default n
>
> config NET_DSA_TAG_EDSA
> - bool
> + bool "Ethertype DSA packet tagging format"
> + select NET_DSA
> default n
>
> config NET_DSA_TAG_TRAILER
> - bool
> + bool "Trailer DSA packet tagging format"
> + select NET_DSA
> default n
> -
> -endif
> +endmenu
>
> _______________________________________________
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