netdev - Re: [PATCH v1 6/9] iwlwifi: mvm: Set THERMAL_TRIP_WRITABLE

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]

Message-ID: <ZcY7jyyFJq1yfOCj@linux.intel.com>
Date: Fri, 9 Feb 2024 15:49:51 +0100
From: Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc: Linux PM <linux-pm@...r.kernel.org>,
	Miri Korenblit <miriam.rachel.korenblit@...el.com>,
	Lukasz Luba <lukasz.luba@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Zhang Rui <rui.zhang@...el.com>, netdev@...r.kernel.org,
	Ido Schimmel <idosch@...dia.com>, Petr Machata <petrm@...dia.com>,
	linux-wireless@...r.kernel.org, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Manaf Meethalavalappu Pallikunhi <quic_manafm@...cinc.com>
Subject: Re: [PATCH v1 6/9] iwlwifi: mvm: Set THERMAL_TRIP_WRITABLE_TEMP
 directly

On Fri, Feb 09, 2024 at 03:10:24PM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> It is now possible to flag trip points with THERMAL_TRIP_WRITABLE_TEMP
> to allow their temperature to be set from user space via sysfs instead
> of using a nonzero writable trips mask during thermal zone registration,
> so make the iwlwifi code do that.
> 
> No intentional functional impact.
> 
> Note that this change is requisite for dropping the mask argument from
> thermal_zone_device_register_with_trips() going forward.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
> 
> This patch obviously depends on
> 
> https://patchwork.kernel.org/project/linux-pm/patch/8346768.T7Z3S40VBb@kreacher/
> 
> which has been queued up for 6.9 already.
> 
> ---
>  drivers/net/wireless/intel/iwlwifi/mvm/tt.c |    6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> Index: linux-pm/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
> ===================================================================
> --- linux-pm.orig/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
> +++ linux-pm/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
> @@ -667,9 +667,6 @@ static  struct thermal_zone_device_ops t
>  	.set_trip_temp = iwl_mvm_tzone_set_trip_temp,
>  };
>  
> -/* make all trips writable */
> -#define IWL_WRITABLE_TRIPS_MSK (BIT(IWL_MAX_DTS_TRIPS) - 1)
> -
>  static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
>  {
>  	int i, ret;
> @@ -692,11 +689,12 @@ static void iwl_mvm_thermal_zone_registe
>  	for (i = 0 ; i < IWL_MAX_DTS_TRIPS; i++) {
>  		mvm->tz_device.trips[i].temperature = THERMAL_TEMP_INVALID;
>  		mvm->tz_device.trips[i].type = THERMAL_TRIP_PASSIVE;
> +		mvm->tz_device.trips[i].type = THERMAL_TRIP_WRITABLE_TEMP;

		mvm->tz_device.trips[i].flags = THERMAL_TRIP_WRITABLE_TEMP;

Consider using diffrent prefix for constants to diffrenciate flags and types.

Regards
Stanislaw

>  	}
>  	mvm->tz_device.tzone = thermal_zone_device_register_with_trips(name,
>  							mvm->tz_device.trips,
>  							IWL_MAX_DTS_TRIPS,
> -							IWL_WRITABLE_TRIPS_MSK,
> +							0,
>  							mvm, &tzone_ops,
>  							NULL, 0, 0);
>  	if (IS_ERR(mvm->tz_device.tzone)) {
> 
> 
>