linux-kernel - Re: [PATCH v4 1/7] clk: actions: Fix factor clk struct member access

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Message-ID: <20190917163628.GA2615@Mani-XPS-13-9360>
Date:   Tue, 17 Sep 2019 22:06:28 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     afaerber@...e.de, robh+dt@...nel.org, ulf.hansson@...aro.org,
        linux-arm-kernel@...ts.infradead.org, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        thomas.liau@...ions-semi.com, linux-actions@...ts.infradead.org,
        linus.walleij@...aro.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v4 1/7] clk: actions: Fix factor clk struct member access

On Tue, Sep 17, 2019 at 09:34:18AM -0700, Stephen Boyd wrote:
> Quoting Manivannan Sadhasivam (2019-09-16 08:45:40)
> > Since the helper "owl_factor_helper_round_rate" is shared between factor
> > and composite clocks, using the factor clk specific helper function
> > like "hw_to_owl_factor" to access its members will create issues when
> > called from composite clk specific code. Hence, pass the "factor_hw"
> > struct pointer directly instead of fetching it using factor clk specific
> > helpers.
> > 
> > This issue has been observed when a composite clock like "sd0_clk" tried
> > to call "owl_factor_helper_round_rate" resulting in pointer dereferencing
> > error.
> > 
> > While we are at it, let's rename the "clk_val_best" function to
> > "owl_clk_val_best" since this is an owl SoCs specific helper.
> > 
> > Fixes: 4bb78fc9744a ("clk: actions: Add factor clock support")
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> > Reviewed-by: Stephen Boyd <sboyd@...nel.org>
> > ---
> 
> I can apply this to clk-next?

Yes, please :-) Rest can go through Ulf's tree.

Thanks,
Mani

>