linux-kernel - Re: [PATCH 3/5] clk: qcom: common: Attach clock power domains conditionally

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <fvcmc3ibqcwzokvqomntxn2vkgduvbdsx3gd5vkctzwrik7bis@iyjrejmqkpfp>
Date: Wed, 19 Feb 2025 13:57:37 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Jagadeesh Kona <quic_jkona@...cinc.com>
Cc: Bjorn Andersson <andersson@...nel.org>, 
	Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, Ajit Pandey <quic_ajipan@...cinc.com>, 
	Imran Shaik <quic_imrashai@...cinc.com>, Taniya Das <quic_tdas@...cinc.com>, 
	Satya Priya Kakitapalli <quic_skakitap@...cinc.com>, linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] clk: qcom: common: Attach clock power domains
 conditionally

On Wed, Feb 19, 2025 at 05:06:11PM +0530, Jagadeesh Kona wrote:
> 
> 
> On 2/18/2025 10:48 PM, Dmitry Baryshkov wrote:
> > On Tue, Feb 18, 2025 at 07:56:48PM +0530, Jagadeesh Kona wrote:
> >> Attach clock power domains in qcom_cc_really_probe() only
> >> if the clock controller has not already attached to them.
> > 
> > Squash this to the previous patch and call the new function. No need to
> > duplicate the code.
> > 
> 
> I tried calling the new function here instead of duplicating code, but that
> is leading to below warning since the desc passed to qcom_cc_really_probe()
> has a const qualifier and hence we cannot update desc->pd_list inside
> qcom_cc_really_probe().
> 
> drivers/clk/qcom/common.c:305:33:   WARNING : passing argument 2 of ‘qcom_cc_attach_pds’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]

It sounds like this can be fixed with a one-line patch.

> 
> Thanks,
> Jagadeesh
> 
> >>
> >> Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>
> >> ---
> >>  drivers/clk/qcom/common.c | 9 ++++++---
> >>  1 file changed, 6 insertions(+), 3 deletions(-)
> >>
> >> diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c
> >> index ec27f70b24bdec24edd2f6b3df0d766fc1cdcbf0..eb7e2a56d1d135f839fd9bd470ba6231ce775a8c 100644
> >> --- a/drivers/clk/qcom/common.c
> >> +++ b/drivers/clk/qcom/common.c
> >> @@ -300,9 +300,12 @@ int qcom_cc_really_probe(struct device *dev,
> >>  	if (!cc)
> >>  		return -ENOMEM;
> >>  
> >> -	ret = devm_pm_domain_attach_list(dev, NULL, &cc->pd_list);
> >> -	if (ret < 0 && ret != -EEXIST)
> >> -		return ret;
> >> +	cc->pd_list = desc->pd_list;
> >> +	if (!cc->pd_list) {
> >> +		ret = devm_pm_domain_attach_list(dev, NULL, &cc->pd_list);
> >> +		if (ret < 0 && ret != -EEXIST)
> >> +			return ret;
> >> +	}
> >>  
> >>  	reset = &cc->reset;
> >>  	reset->rcdev.of_node = dev->of_node;
> >>
> >> -- 
> >> 2.34.1
> >>
> > 

-- 
With best wishes
Dmitry