linux-hardening - Re: [PATCH v6 000/164] pwm: Improve lifetime tracking for pwm

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Date: Thu, 15 Feb 2024 12:46:48 +0100
From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To: linux-pwm@...r.kernel.org, Jonathan Corbet <corbet@....net>, 
	Jonathan Cameron <Jonathan.Cameron@...wei.com>, James Clark <james.clark@....com>, 
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Mark Brown <broonie@...nel.org>, 
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Subject: Re: [PATCH v6 000/164] pwm: Improve lifetime tracking for pwm_chips

Hello,

On Wed, Feb 14, 2024 at 10:30:47AM +0100, Uwe Kleine-König wrote:
> this is v6 of the series introducing better lifetime tracking for
> pwmchips that addresses (for now theoretic) lifetime issues of pwm
> chips. Addressing these is a necessary precondition to introduce chardev
> support for PWMs.
> 
> Locking got more complicated due to non-sleeping chips, so I dropped
> the character device patch because it got still more incomplete now.
> Also I'm not yet entirely sure about patches #162 and #163 and I expect
> them to change before they can go in. My plan for the next merge window
> is to get the patches in up to #160. After that the addition of chardev
> support (including correct locking) can continue without having to touch
> the lowlevel driver. So the idea of this series is to get the driver
> adaptions out of the way as this requires some cross-tree coordination.
> 
> The patches that touch files outside of drivers/pwm include:
> 
>  - gpio: mvebu: Make use of devm_pwmchip_alloc() function
>    It already has an Ack by Linus Walleij.
> 
>  - drm/bridge: ti-sn65dsi86: Make use of pwmchip_parent() accessor
>  - drm/bridge: ti-sn65dsi86: Make use of devm_pwmchip_alloc() function
>    The 2nd already has an Ack by Douglas Anderson which I tend to assume
>    good enough to merge this via my pwm tree, too. An Ack for the first
>    patch would be nice.
> 
>  - leds: qcom-lpg: Make use of devm_pwmchip_alloc() function
>    Already has an Ack by Lee Jones.
> 
>  - staging: greybus: pwm: Change prototype of helpers to prepare further changes
>  - staging: greybus: pwm: Make use of pwmchip_parent() accessor
>  - staging: greybus: pwm: Rely on pwm framework to pass a valid hwpwm
>  - staging: greybus: pwm: Drop unused gb_connection_set_data()
>  - staging: greybus: pwm: Rework how the number of PWM lines is determined
>  - staging: greybus: pwm: Make use of devm_pwmchip_alloc() function
>    The greybus patches already got an Ack by Greg Kroah-Hartman in an
>    earlier series, but I dropped it as the patches changed considerably.

After getting the needed acks, I pushed out this series in

https://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux.git pwm/for-next

up to patch #161.

(But don't let you stop looking at the changes, reviews are still
welcome.)

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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