linux-kernel - Re: [PATCH 2/2] i2c: mux: pinctrl: drop the idle

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:   Wed, 2 Aug 2017 23:25:02 +0200
From:   Peter Rosin <peda@...ntia.se>
To:     Stephen Warren <swarren@...dotorg.org>
Cc:     linux-kernel@...r.kernel.org, Wolfram Sang <wsa@...-dreams.de>,
        Stephen Warren <swarren@...dia.com>, linux-i2c@...r.kernel.org
Subject: Re: [PATCH 2/2] i2c: mux: pinctrl: drop the idle_state member

On 2017-08-02 21:06, Stephen Warren wrote:
> On 08/02/2017 01:27 AM, Peter Rosin wrote:
>> The information is available elsewhere.
> 
>> diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c
> 
>>   static int i2c_mux_pinctrl_deselect(struct i2c_mux_core *muxc, u32 chan)
>>   {
>> +	return i2c_mux_pinctrl_select(muxc, muxc->num_adapters);
>>   }
> 
>> @@ -166,7 +162,7 @@ static int i2c_mux_pinctrl_probe(struct platform_device *pdev)
> 
>>   	/* Do not add any adapter for the idle state (if it's there at all). */
>> -	for (i = 0; i < num_names - !!mux->state_idle; i++) {
>> +	for (i = 0; i < num_names - !!muxc->deselect; i++) {
> 
> I think that "num_names - !!muxc->deselect" could just be 
> muxc->num_adapters? 

Not really, it's the i2c_mux_add_adapter call in the loop that bumps
muxc->num_adapters, so the loop would not be entered. Not desirable :-)

(and muxc->max_adapters == num_names)

>                     Otherwise,
> Reviewed-by: Stephen Warren <swarren@...dia.com>

Thanks!

Cheers,
Peter