[{"id":3651670,"web_url":"http://patchwork.ozlabs.org/comment/3651670/","msgid":"","list_archive_url":null,"date":"2026-02-18T20:23:38","subject":"Re: [PATCH 1/7] gpio: bd9571mwv: normalize return value of gpio_get","submitter":{"id":92191,"url":"http://patchwork.ozlabs.org/api/people/92191/","name":"Bartosz Golaszewski","email":"brgl@kernel.org"},"content":"On Wed, Feb 18, 2026 at 8:07 PM Dmitry Torokhov\n wrote:\n>\n> The GPIO get callback is expected to return 0 or 1 (or a negative error\n> code). Ensure that the value returned by bd9571mwv_gpio_get() is\n> normalized to the [0, 1] range.\n>\n> Signed-off-by: Dmitry Torokhov \n> ---\n> drivers/gpio/gpio-bd9571mwv.c | 2 +-\n> 1 file changed, 1 insertion(+), 1 deletion(-)\n>\n> diff --git a/drivers/gpio/gpio-bd9571mwv.c b/drivers/gpio/gpio-bd9571mwv.c\n> index 7c95bb36511e..cc5b1746f2fe 100644\n> --- a/drivers/gpio/gpio-bd9571mwv.c\n> +++ b/drivers/gpio/gpio-bd9571mwv.c\n> @@ -69,7 +69,7 @@ static int bd9571mwv_gpio_get(struct gpio_chip *chip, unsigned int offset)\n> if (ret < 0)\n> return ret;\n>\n> - return val & BIT(offset);\n> + return !!(val & BIT(offset));\n> }\n>\n> static int bd9571mwv_gpio_set(struct gpio_chip *chip, unsigned int offset,\n> --\n> 2.53.0.335.g19a08e0c02-goog\n>\n\nThanks for doing this. I think it would make sense to backport them\nall the way to commit 86ef402d805d (\"gpiolib: sanitize the return\nvalue of gpio_chip::get()\")?\n\nBartosz","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-gpio@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=po6DRJzz;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-gpio+bounces-31814-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"po6DRJzz\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fGSf45YpRz1xvt\n\tfor ; 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Wed, 18 Feb 2026\n 12:23:52 -0800 (PST)","Precedence":"bulk","X-Mailing-List":"linux-gpio@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","References":"<20260218190657.2974723-1-dmitry.torokhov@gmail.com>","In-Reply-To":"<20260218190657.2974723-1-dmitry.torokhov@gmail.com>","From":"Bartosz Golaszewski ","Date":"Wed, 18 Feb 2026 21:23:38 +0100","X-Gmail-Original-Message-ID":"\n ","X-Gm-Features":"AaiRm51IfTQj0crOIUFIDiaD_56L4kAwAF0q9LA_NznLYvh7TP58M7sejx8UinI","Message-ID":"\n ","Subject":"Re: [PATCH 1/7] gpio: bd9571mwv: normalize return value of gpio_get","To":"Dmitry Torokhov ","Cc":"Linus Walleij ,\n Marek Vasut ,\n\tThomas Richard , linux-kernel@vger.kernel.org,\n\tlinux-gpio@vger.kernel.org","Content-Type":"text/plain; charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable"}},{"id":3651695,"web_url":"http://patchwork.ozlabs.org/comment/3651695/","msgid":"","list_archive_url":null,"date":"2026-02-18T21:02:47","subject":"Re: [PATCH 1/7] gpio: bd9571mwv: normalize return value of gpio_get","submitter":{"id":695,"url":"http://patchwork.ozlabs.org/api/people/695/","name":"Dmitry Torokhov","email":"dmitry.torokhov@gmail.com"},"content":"On Wed, Feb 18, 2026 at 09:23:38PM +0100, Bartosz Golaszewski wrote:\n> On Wed, Feb 18, 2026 at 8:07 PM Dmitry Torokhov\n> wrote:\n> >\n> > The GPIO get callback is expected to return 0 or 1 (or a negative error\n> > code). Ensure that the value returned by bd9571mwv_gpio_get() is\n> > normalized to the [0, 1] range.\n> >\n> > Signed-off-by: Dmitry Torokhov \n> > ---\n> > drivers/gpio/gpio-bd9571mwv.c | 2 +-\n> > 1 file changed, 1 insertion(+), 1 deletion(-)\n> >\n> > diff --git a/drivers/gpio/gpio-bd9571mwv.c b/drivers/gpio/gpio-bd9571mwv.c\n> > index 7c95bb36511e..cc5b1746f2fe 100644\n> > --- a/drivers/gpio/gpio-bd9571mwv.c\n> > +++ b/drivers/gpio/gpio-bd9571mwv.c\n> > @@ -69,7 +69,7 @@ static int bd9571mwv_gpio_get(struct gpio_chip *chip, unsigned int offset)\n> > if (ret < 0)\n> > return ret;\n> >\n> > - return val & BIT(offset);\n> > + return !!(val & BIT(offset));\n> > }\n> >\n> > static int bd9571mwv_gpio_set(struct gpio_chip *chip, unsigned int offset,\n> > --\n> > 2.53.0.335.g19a08e0c02-goog\n> >\n> \n> Thanks for doing this. I think it would make sense to backport them\n> all the way to commit 86ef402d805d (\"gpiolib: sanitize the return\n> value of gpio_chip::get()\")?\n\nI do not think this is workable since the breakages are not limited to\ndtivers/gpio/.\n\nI would recommend reverting the patch for stable, but keeping it for 7.0\nand working with maintainers outside of drivers/gpio to make sure the\nfixes land in this release cycle.\n\nThis way you will ensure that new drivers are not adding tech debt while\nnot punishing existing users who might not be running latest and\ngreatest kernel.\n\nThanks.","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-gpio@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20230601 header.b=J/zmjEpz;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; 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charset=utf-8","Content-Disposition":"inline","Content-Transfer-Encoding":"8bit","In-Reply-To":"\n "}},{"id":3651832,"web_url":"http://patchwork.ozlabs.org/comment/3651832/","msgid":"","list_archive_url":null,"date":"2026-02-19T08:57:02","subject":"Re: [PATCH 1/7] gpio: bd9571mwv: normalize return value of gpio_get","submitter":{"id":92191,"url":"http://patchwork.ozlabs.org/api/people/92191/","name":"Bartosz Golaszewski","email":"brgl@kernel.org"},"content":"On Wed, Feb 18, 2026 at 10:02 PM Dmitry Torokhov\n wrote:\n>\n> On Wed, Feb 18, 2026 at 09:23:38PM +0100, Bartosz Golaszewski wrote:\n> > On Wed, Feb 18, 2026 at 8:07 PM Dmitry Torokhov\n> > wrote:\n> > >\n> > > The GPIO get callback is expected to return 0 or 1 (or a negative error\n> > > code). Ensure that the value returned by bd9571mwv_gpio_get() is\n> > > normalized to the [0, 1] range.\n> > >\n> > > Signed-off-by: Dmitry Torokhov \n> > > ---\n> > > drivers/gpio/gpio-bd9571mwv.c | 2 +-\n> > > 1 file changed, 1 insertion(+), 1 deletion(-)\n> > >\n> > > diff --git a/drivers/gpio/gpio-bd9571mwv.c b/drivers/gpio/gpio-bd9571mwv.c\n> > > index 7c95bb36511e..cc5b1746f2fe 100644\n> > > --- a/drivers/gpio/gpio-bd9571mwv.c\n> > > +++ b/drivers/gpio/gpio-bd9571mwv.c\n> > > @@ -69,7 +69,7 @@ static int bd9571mwv_gpio_get(struct gpio_chip *chip, unsigned int offset)\n> > > if (ret < 0)\n> > > return ret;\n> > >\n> > > - return val & BIT(offset);\n> > > + return !!(val & BIT(offset));\n> > > }\n> > >\n> > > static int bd9571mwv_gpio_set(struct gpio_chip *chip, unsigned int offset,\n> > > --\n> > > 2.53.0.335.g19a08e0c02-goog\n> > >\n> >\n> > Thanks for doing this. I think it would make sense to backport them\n> > all the way to commit 86ef402d805d (\"gpiolib: sanitize the return\n> > value of gpio_chip::get()\")?\n>\n> I do not think this is workable since the breakages are not limited to\n> dtivers/gpio/.\n>\n> I would recommend reverting the patch for stable, but keeping it for 7.0\n> and working with maintainers outside of drivers/gpio to make sure the\n> fixes land in this release cycle.\n>\n> This way you will ensure that new drivers are not adding tech debt while\n> not punishing existing users who might not be running latest and\n> greatest kernel.\n>\n\nSigh... I sent a patch[1]. Let's get it upstream and not diverge\nbetween mainline and stable.\n\nThanks for the slew of fixes.\n\nBartosz\n\n[1] https://lore.kernel.org/all/20260219-gpiolib-set-normalize-v1-1-f0d53a009db4@oss.qualcomm.com/","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-gpio@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=BwBfMPuF;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; helo=sto.lore.kernel.org;\n envelope-from=linux-gpio+bounces-31847-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"BwBfMPuF\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from sto.lore.kernel.org (sto.lore.kernel.org\n [IPv6:2600:3c09:e001:a7::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fGnM70m2Kz1xpl\n\tfor ; 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Thu, 19 Feb 2026\n 00:57:14 -0800 (PST)","Precedence":"bulk","X-Mailing-List":"linux-gpio@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","References":"<20260218190657.2974723-1-dmitry.torokhov@gmail.com>\n \n ","In-Reply-To":"","From":"Bartosz Golaszewski ","Date":"Thu, 19 Feb 2026 09:57:02 +0100","X-Gmail-Original-Message-ID":"\n ","X-Gm-Features":"AaiRm50eROg3lOdc7aqjg2HWw5KLIXVnrH6cGhCclcI0ZCFIp2dA0QxTe59jW-w","Message-ID":"\n ","Subject":"Re: [PATCH 1/7] gpio: bd9571mwv: normalize return value of gpio_get","To":"Dmitry Torokhov ","Cc":"Linus Walleij ,\n Marek Vasut ,\n\tThomas Richard , linux-kernel@vger.kernel.org,\n\tlinux-gpio@vger.kernel.org","Content-Type":"text/plain; charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable"}},{"id":3653015,"web_url":"http://patchwork.ozlabs.org/comment/3653015/","msgid":"<177184063428.89486.4830676695551371408.b4-ty@oss.qualcomm.com>","list_archive_url":null,"date":"2026-02-23T09:57:14","subject":"Re: [PATCH 1/7] gpio: bd9571mwv: normalize return value of gpio_get","submitter":{"id":92196,"url":"http://patchwork.ozlabs.org/api/people/92196/","name":"Bartosz Golaszewski","email":"bartosz.golaszewski@oss.qualcomm.com"},"content":"On Wed, 18 Feb 2026 11:06:50 -0800, Dmitry Torokhov wrote:\n> The GPIO get callback is expected to return 0 or 1 (or a negative error\n> code). Ensure that the value returned by bd9571mwv_gpio_get() is\n> normalized to the [0, 1] range.\n> \n> \n\nApplied, thanks!\n\n[1/7] gpio: bd9571mwv: normalize return value of gpio_get\n https://git.kernel.org/brgl/c/c43778680546dd379b3d8219c177b1a34ba87002\n[2/7] gpio: cgbc: normalize return value of gpio_get\n https://git.kernel.org/brgl/c/49621f1c97788216f2f10f1a9e903f216e289f5d\n[3/7] gpio: da9055: normalize return value of gpio_get\n https://git.kernel.org/brgl/c/4d720b0d68e9a251d60804eace42aac800d7a79f\n[4/7] gpio: lp873x: normalize return value of gpio_get\n https://git.kernel.org/brgl/c/5a32ebabb6819fafce99e7bc6575ca568af6d22a\n[5/7] gpio: stp-xway: normalize return value of gpio_get\n https://git.kernel.org/brgl/c/e62b94a690c8cd7050c3d308e01ee1b24ee9bb0b\n[6/7] gpio: tps65086: normalize return value of gpio_get\n https://git.kernel.org/brgl/c/9eb7ecfd20f868421e44701274896ba9e136daae\n[7/7] gpio: viperboard: normalize return value of gpio_get\n https://git.kernel.org/brgl/c/c08381ad56a9cc111f893b2b21400ceb468cc698\n\nBest regards,","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-gpio@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=X4MNGvJK;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=G/4bqoSK;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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