linux-kernel - Re: [PATCH 5.15 000/411] 5.15.186-rc1 review

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Message-ID: <2025072105-tactics-flail-4035@gregkh>
Date: Mon, 21 Jul 2025 15:48:22 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: Guenter Roeck <linux@...ck-us.net>, stable@...r.kernel.org,
	patches@...ts.linux.dev, linux-kernel@...r.kernel.org,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	shuah@...nel.org, patches@...nelci.org,
	lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
	f.fainelli@...il.com, sudipm.mukherjee@...il.com,
	srw@...dewatkins.net, rwarsow@....de, conor@...nel.org,
	hargar@...rosoft.com, broonie@...nel.org
Subject: Re: [PATCH 5.15 000/411] 5.15.186-rc1 review

On Mon, Jul 14, 2025 at 09:56:11PM +0200, Martin Blumenstingl wrote:
> Hi Greg,
> 
> On Sat, Jul 12, 2025 at 2:37 PM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> >
> > On Tue, Jul 08, 2025 at 06:05:14PM +0200, Martin Blumenstingl wrote:
> > > Hi Guenter,
> > >
> > > On Mon, Jul 7, 2025 at 8:05 PM Guenter Roeck <linux@...ck-us.net> wrote:
> > > >
> > > > On Mon, Jun 23, 2025 at 03:02:24PM +0200, Greg Kroah-Hartman wrote:
> > > > > This is the start of the stable review cycle for the 5.15.186 release.
> > > > > There are 411 patches in this series, all will be posted as a response
> > > > > to this one.  If anyone has any issues with these being applied, please
> > > > > let me know.
> > > > >
> > > > > Responses should be made by Wed, 25 Jun 2025 13:05:51 +0000.
> > > > > Anything received after that time might be too late.
> > > > >
> > > > ...
> > > > > Martin Blumenstingl <martin.blumenstingl@...glemail.com>
> > > > >     drm/meson: use unsigned long long / Hz for frequency types
> > > > >
> > > >
> > > > This patch triggers:
> > > >
> > > > Building arm:allmodconfig ... failed
> > > > --------------
> > > > Error log:
> > > > drivers/gpu/drm/meson/meson_vclk.c:399:17: error: this decimal constant is unsigned only in ISO C90 [-Werror]
> > > >   399 |                 .pll_freq = 2970000000,
> > > >
> > > > and other similar problems. This is with gcc 13.4.0.
> > > Sorry to hear that this is causing issues.
> > > Are you only seeing this with the backport on top of 5.15 or also on
> > > top of mainline or -next?
> > >
> > > If it's only for 5.15 then personally I'd be happy with just skipping
> > > this patch (and the ones that depend on it).
> >
> > It's already merged, and I see these errors in the Android build reports
> > now.  I think they've just disabled the driver entirely to get around it :(
> Can you confirm that only 5.15 is affected - or do you also see
> problems with other stable versions?
> 
> > > 5.15 is scheduled to be sunset in 16 months and I am not aware of many
> > > people running Amlogic SoCs with mainline 5.15.
> >
> > Great, can we send a "CONFIG_BROKEN" patch for this then?
> In my own words: you're asking for a patch for the next 5.15 release
> which adds "depends on BROKEN" to the meson drm driver. Is this
> correct?

Yes, given that it seems no one uses it there :)

thanks,

greg k-h