linux-kernel - Re: [PATCH] clk: uniphier: Fix build with gcc-4.4.

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Message-ID: <CAK7LNATeswNhoFsA90k=qF4Jock0ytNT-pPT6j+0b9MJFJwu9Q@mail.gmail.com>
Date:   Sat, 3 Dec 2016 10:24:43 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Vinson Lee <vlee@...edesktop.org>
Cc:     linux-clk <linux-clk@...r.kernel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] clk: uniphier: Fix build with gcc-4.4.

Hi Vinson,

2016-12-03 9:37 GMT+09:00 Vinson Lee <vlee@...edesktop.org>:
> gcc-4.4 has issues with anonymous unions in initializers.
>
>   CC      drivers/clk/uniphier/clk-uniphier-sys.o
> drivers/clk/uniphier/clk-uniphier-sys.c:45: error: unknown field ‘factor’ specified in initializer
>
> Fixes: 1574d5722636 ("clk: uniphier: remove unneeded member name for union")
> Signed-off-by: Vinson Lee <vlee@...edesktop.org>


This driver has COMPILE_TEST option, but kbuild test robot
did not mention about this.



This is a bad way of fixing, I think.
(what if a new member is inserted before the union in the future?)

Rather, please revert the bad commit.


>                 .name = "sd" #ch "-sel",                                \
>                 .type = UNIPHIER_CLK_TYPE_MUX,                          \
>                 .idx = -1,                                              \
> -               .mux = {                                                \
> +               { .mux = {                                              \
>                         .parent_names = {                               \
>                                 "sd-44m",                               \
>                                 "sd-33m",                               \
> @@ -63,7 +63,7 @@
>                                 0x00001200,                             \
>                                 0x00001300,                             \
>                         },                                              \
> -               },                                                      \
> +               } },                                                    \
>         },                                                              \


No, please do not do this.






-- 
Best Regards
Masahiro Yamada