linux-kernel - Re: [PATCH 1/5] clk: mb86s7x: Suppress build

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Date:   Wed, 28 Jun 2017 09:13:54 -0700
From:   Stephen Boyd <sboyd@...eaurora.org>
To:     Andreas Färber <afaerber@...e.de>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Satoru OKAMOTO <okamoto.satoru@...ionext.com>,
        Michael Turquette <mturquette@...libre.com>,
        linux-clk@...r.kernel.org, Jassi Brar <jaswinder.singh@...aro.org>,
        Andy Green <andy.green@...aro.org>,
        Vincent Yang <vincent.yang@...ionext.com>,
        Tetsuya Nuriya <nuriya.tetsuya@...ionext.com>
Subject: Re: [PATCH 1/5] clk: mb86s7x: Suppress build

On 06/25, Andreas Färber wrote:
> It fails to build once we introduce the ARCH_MB86S7X Kconfig symbol:
> 
>   drivers/clk/clk-mb86s7x.c:27:10: fatal error: soc/mb86s7x/scb_mhu.h: No such file or directory
>    #include <soc/mb86s7x/scb_mhu.h>
>             ^~~~~~~~~~~~~~~~~~~~~~~
>   compilation terminated.
> 
> And when commenting out that line, we get:
> 
>   drivers/clk/clk-mb86s7x.c: In function 'crg_gate_control':
>   drivers/clk/clk-mb86s7x.c:72:8: error: implicit declaration of function 'mb86s7x_send_packet' [-Werror=implicit-function-declaration]
>     ret = mb86s7x_send_packet(CMD_PERI_CLOCK_GATE_SET_REQ,
>           ^~~~~~~~~~~~~~~~~~~
>   drivers/clk/clk-mb86s7x.c:72:28: error: 'CMD_PERI_CLOCK_GATE_SET_REQ' undeclared (first use in this function)
>     ret = mb86s7x_send_packet(CMD_PERI_CLOCK_GATE_SET_REQ,
>                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>   drivers/clk/clk-mb86s7x.c:72:28: note: each undeclared identifier is reported only once for each function it appears in
>   drivers/clk/clk-mb86s7x.c: In function 'crg_rate_control':
>   drivers/clk/clk-mb86s7x.c:116:10: error: 'CMD_PERI_CLOCK_RATE_SET_REQ' undeclared (first use in this function)
>      code = CMD_PERI_CLOCK_RATE_SET_REQ;
>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>   drivers/clk/clk-mb86s7x.c:121:10: error: 'CMD_PERI_CLOCK_RATE_GET_REQ' undeclared (first use in this function); did you mean 'CMD_PERI_CLOCK_RATE_SET_REQ'?
>      code = CMD_PERI_CLOCK_RATE_GET_REQ;
>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>             CMD_PERI_CLOCK_RATE_SET_REQ
>   drivers/clk/clk-mb86s7x.c: In function 'mhu_cluster_rate':
>   drivers/clk/clk-mb86s7x.c:276:10: error: 'CMD_CPU_CLOCK_RATE_GET_REQ' undeclared (first use in this function)
>      code = CMD_CPU_CLOCK_RATE_GET_REQ;
>             ^~~~~~~~~~~~~~~~~~~~~~~~~~
>   drivers/clk/clk-mb86s7x.c:278:10: error: 'CMD_CPU_CLOCK_RATE_SET_REQ' undeclared (first use in this function); did you mean 'CMD_CPU_CLOCK_RATE_GET_REQ'?
>      code = CMD_CPU_CLOCK_RATE_SET_REQ;
>             ^~~~~~~~~~~~~~~~~~~~~~~~~~
>             CMD_CPU_CLOCK_RATE_GET_REQ
>   cc1: some warnings being treated as errors
>   scripts/Makefile.build:302: recipe for target
>   'drivers/clk/clk-mb86s7x.o' failed
>   make[2]: *** [drivers/clk/clk-mb86s7x.o] Error 1
> 
> Comment it out in the Makefile for now.
> 

Why not delete the whole driver instead? It's been two years and
the driver has never compiled.

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