linux-kernel - Re: [PATCH 08/21] clk: clkdev: Ignore suggestion to use gnu

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Date:   Thu, 11 Feb 2021 11:23:47 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org, Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH 08/21] clk: clkdev: Ignore suggestion to use gnu_printf() as it's not appropriate here

Quoting Lee Jones (2021-01-26 04:45:27)
> Fixes the following W=1 kernel build warning(s):
> 
>  drivers/clk/clkdev.c: In function ‘vclkdev_alloc’:
>  drivers/clk/clkdev.c:173:3: warning: function ‘vclkdev_alloc’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
> 
> Cc: Russell King <linux@...linux.org.uk>
> Cc: linux-arm-kernel@...ts.infradead.org
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
> ---
>  drivers/clk/clkdev.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c
> index 0f2e3fcf0f19f..5e5f25d568724 100644
> --- a/drivers/clk/clkdev.c
> +++ b/drivers/clk/clkdev.c
> @@ -153,6 +153,11 @@ struct clk_lookup_alloc {
>         char    con_id[MAX_CON_ID];
>  };
>  
> +#pragma GCC diagnostic push
> +#ifndef __clang__
> +#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
> +#endif

Can this be some macro banished to compiler.h?

> +
>  static struct clk_lookup * __ref
>  vclkdev_alloc(struct clk_hw *hw, const char *con_id, const char *dev_fmt,
>         va_list ap)
> @@ -177,6 +182,8 @@ vclkdev_alloc(struct clk_hw *hw, const char *con_id, const char *dev_fmt,
>         return &cla->cl;
>  }
>  
> +#pragma GCC diagnostic pop
> +
>  static struct clk_lookup *
>  vclkdev_create(struct clk_hw *hw, const char *con_id, const char *dev_fmt,
>         va_list ap)
> -- 
> 2.25.1
>