linux-kernel - Re: [PATCH] clk: imx: clk-pllv3: mark expected switch fall-throughs

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Date:   Tue, 30 Apr 2019 10:22:02 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Fabio Estevam <festevam@...il.com>,
        Michael Turquette <mturquette@...libre.com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Cc:     linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: Re: [PATCH] clk: imx: clk-pllv3: mark expected switch fall-throughs

Quoting Gustavo A. R. Silva (2019-04-30 07:32:06)
> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warnings:
> 
> drivers/clk/imx/clk-pllv3.c: In function ‘imx_clk_pllv3’:
> drivers/clk/imx/clk-pllv3.c:446:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    pll->div_shift = 1;
>    ~~~~~~~~~~~~~~~^~~
> drivers/clk/imx/clk-pllv3.c:447:2: note: here
>   case IMX_PLLV3_USB:
>   ^~~~
> drivers/clk/imx/clk-pllv3.c:453:21: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    pll->denom_offset = PLL_IMX7_DENOM_OFFSET;
>                      ^
> drivers/clk/imx/clk-pllv3.c:454:2: note: here
>   case IMX_PLLV3_AV:
>   ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>

It was sent by Anson already.