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Date: Sun, 16 Jan 2022 15:19:06 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Uwe Kleine-König <u.kleine-koenig@...gutronix.de> Cc: Sergey Shtylyov <s.shtylyov@....ru>, "Rafael J. Wysocki" <rafael@...nel.org>, linux-kernel@...r.kernel.org, Andrew Lunn <andrew@...n.ch>, Ulf Hansson <ulf.hansson@...aro.org>, Vignesh Raghavendra <vigneshr@...com>, Jiri Slaby <jirislaby@...nel.org>, Liam Girdwood <lgirdwood@...il.com>, linux-iio@...r.kernel.org, Linus Walleij <linus.walleij@...aro.org>, Amit Kucheria <amitk@...nel.org>, alsa-devel@...a-project.org, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Sebastian Reichel <sre@...nel.org>, linux-phy@...ts.infradead.org, Thierry Reding <thierry.reding@...il.com>, linux-mtd@...ts.infradead.org, linux-i2c@...r.kernel.org, linux-gpio@...r.kernel.org, Miquel Raynal <miquel.raynal@...tlin.com>, Guenter Roeck <groeck@...omium.org>, Lee Jones <lee.jones@...aro.org>, openipmi-developer@...ts.sourceforge.net, Saravanan Sekar <sravanhome@...il.com>, Khuong Dinh <khuong@...amperecomputing.com>, Florian Fainelli <f.fainelli@...il.com>, Matthias Schiffer <matthias.schiffer@...tq-group.com>, kvm@...r.kernel.org, Kamal Dasu <kdasu.kdev@...il.com>, Richard Weinberger <richard@....at>, Bartosz Golaszewski <brgl@...ev.pl>, Daniel Lezcano <daniel.lezcano@...aro.org>, Kishon Vijay Abraham I <kishon@...com>, bcm-kernel-feedback-list@...adcom.com, linux-serial@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>, Zhang Rui <rui.zhang@...el.com>, Jaroslav Kysela <perex@...ex.cz>, platform-driver-x86@...r.kernel.org, linux-pwm@...r.kernel.org, John Garry <john.garry@...wei.com>, Robert Richter <rric@...nel.org>, Zha Qipeng <qipeng.zha@...el.com>, Corey Minyard <minyard@....org>, linux-pm@...r.kernel.org, Peter Korsgaard <peter@...sgaard.com>, William Breathitt Gray <vilhelm.gray@...il.com>, Mark Gross <markgross@...nel.org>, Hans de Goede <hdegoede@...hat.com>, Alex Williamson <alex.williamson@...hat.com>, Mark Brown <broonie@...nel.org>, Borislav Petkov <bp@...en8.de>, Matthias Brugger <matthias.bgg@...il.com>, Takashi Iwai <tiwai@...e.com>, Mauro Carvalho Chehab <mchehab@...nel.org>, Benson Leung <bleung@...omium.org>, linux-arm-kernel@...ts.infradead.org, linux-edac@...r.kernel.org, Tony Luck <tony.luck@...el.com>, Mun Yew Tham <mun.yew.tham@...el.com>, Eric Auger <eric.auger@...hat.com>, netdev@...r.kernel.org, Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>, Cornelia Huck <cohuck@...hat.com>, linux-mmc@...r.kernel.org, Joakim Zhang <qiangqing.zhang@....com>, linux-spi@...r.kernel.org, linux-renesas-soc@...r.kernel.org, Vinod Koul <vkoul@...nel.org>, James Morse <james.morse@....com>, Pengutronix Kernel Team <kernel@...gutronix.de>, Niklas Söderlund <niklas.soderlund@...natech.se>, linux-mediatek@...ts.infradead.org, Brian Norris <computersforpeace@...il.com>, "David S. Miller" <davem@...emloft.net> Subject: Re: [PATCH 1/2] platform: make platform_get_irq_optional() optional (summary) On Sat, Jan 15, 2022 at 07:36:43PM +0100, Uwe Kleine-König wrote: > A possible compromise: We can have both. We rename > platform_get_irq_optional() to platform_get_irq_silent() (or > platform_get_irq_silently() if this is preferred) and once all users are > are changed (which can be done mechanically), we reintroduce a > platform_get_irq_optional() with Sergey's suggested semantic (i.e. > return 0 on not-found, no error message printking). Please do not do that as anyone trying to forward-port an old driver will miss the abi change of functionality and get confused. Make build-breaking changes, if the way a function currently works is changed in order to give people a chance. thanks, greg k-h
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