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Message-ID: <CAKwvOdmnQiEe8TxNGSqKrBY_WL_Tsxu6NJ=1iAmaaqeM3a2bAQ@mail.gmail.com>
Date: Mon, 9 Mar 2020 18:12:53 -0700
From: Nick Desaulniers <ndesaulniers@...gle.com>
To: Anson Huang <Anson.Huang@....com>,
Nathan Chancellor <natechancellor@...il.com>,
Masahiro Yamada <masahiroy@...nel.org>
Cc: kbuild-all@...ts.01.org,
clang-built-linux <clang-built-linux@...glegroups.com>,
Linus Walleij <linus.walleij@...aro.org>,
bgolaszewski@...libre.com, linux-gpio@...r.kernel.org,
LKML <linux-kernel@...r.kernel.org>,
NXP Linux Team <Linux-imx@....com>,
kbuild test robot <lkp@...el.com>
Subject: Re: [PATCH] gpio: mxs: add COMPILE_TEST support for GPIO_MXS
Nevermind this report, we're currently discussing what best to do in this case.
On Mon, Mar 9, 2020 at 5:57 PM kbuild test robot <lkp@...el.com> wrote:
>
> Hi Anson,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on gpio/for-next]
> [also build test WARNING on v5.6-rc5]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
>
> url: https://github.com/0day-ci/linux/commits/Anson-Huang/gpio-mxs-add-COMPILE_TEST-support-for-GPIO_MXS/20200309-104254
> base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
> config: x86_64-allyesconfig (attached as .config)
> compiler: clang version 11.0.0 (git://gitmirror/llvm_project 073dbaae39724ea860b5957fe47ecc1c2a84b197)
> reproduce:
> # FIXME the reproduce steps for clang is not ready yet
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@...el.com>
>
> All warnings (new ones prefixed by >>):
>
> >> drivers/gpio/gpio-mxs.c:293:16: warning: cast to smaller integer type 'enum mxs_gpio_id' from 'const void *' [-Wvoid-pointer-to-enum-cast]
> port->devid = (enum mxs_gpio_id)of_device_get_match_data(&pdev->dev);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 warning generated.
>
> vim +293 drivers/gpio/gpio-mxs.c
>
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 276
> 3836309d93462b drivers/gpio/gpio-mxs.c Bill Pemberton 2012-11-19 277 static int mxs_gpio_probe(struct platform_device *pdev)
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 278 {
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 279 struct device_node *np = pdev->dev.of_node;
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 280 struct device_node *parent;
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 281 static void __iomem *base;
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 282 struct mxs_gpio_port *port;
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 283 int irq_base;
> 498c17cf6a9353 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-07 284 int err;
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 285
> 940a4f7b51f7ad drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 286 port = devm_kzalloc(&pdev->dev, sizeof(*port), GFP_KERNEL);
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 287 if (!port)
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 288 return -ENOMEM;
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 289
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 290 port->id = of_alias_get_id(np, "gpio");
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 291 if (port->id < 0)
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 292 return port->id;
> 1f2d357b9ebef5 drivers/gpio/gpio-mxs.c Thierry Reding 2018-04-30 @293 port->devid = (enum mxs_gpio_id)of_device_get_match_data(&pdev->dev);
> 5751d3dcf43e24 drivers/gpio/gpio-mxs.c Bartosz Golaszewski 2017-08-09 294 port->dev = &pdev->dev;
> 940a4f7b51f7ad drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 295 port->irq = platform_get_irq(pdev, 0);
> 940a4f7b51f7ad drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 296 if (port->irq < 0)
> 940a4f7b51f7ad drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 297 return port->irq;
> 940a4f7b51f7ad drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 298
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 299 /*
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 300 * map memory region only once, as all the gpio ports
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 301 * share the same one
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 302 */
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 303 if (!base) {
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 304 parent = of_get_parent(np);
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 305 base = of_iomap(parent, 0);
> 4052d45e800ce3 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 306 of_node_put(parent);
> 641d03422a59b1 drivers/gpio/gpio-mxs.c Thierry Reding 2013-01-21 307 if (!base)
> 641d03422a59b1 drivers/gpio/gpio-mxs.c Thierry Reding 2013-01-21 308 return -EADDRNOTAVAIL;
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 309 }
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 310 port->base = base;
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 311
> f08ea3cc94eeaf drivers/gpio/gpio-mxs.c Sascha Hauer 2016-10-21 312 /* initially disable the interrupts */
> f08ea3cc94eeaf drivers/gpio/gpio-mxs.c Sascha Hauer 2016-10-21 313 writel(0, port->base + PINCTRL_PIN2IRQ(port));
> 164387d2b4ae20 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-03 314 writel(0, port->base + PINCTRL_IRQEN(port));
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 315
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 316 /* clear address has to be used to clear IRQSTAT bits */
> 164387d2b4ae20 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-03 317 writel(~0U, port->base + PINCTRL_IRQSTAT(port) + MXS_CLR);
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 318
> 8514b5439c90f0 drivers/gpio/gpio-mxs.c Bartosz Golaszewski 2017-03-04 319 irq_base = devm_irq_alloc_descs(&pdev->dev, -1, 0, 32, numa_node_id());
> 44df08198bc98d drivers/gpio/gpio-mxs.c Arvind Yadav 2016-10-05 320 if (irq_base < 0) {
> 44df08198bc98d drivers/gpio/gpio-mxs.c Arvind Yadav 2016-10-05 321 err = irq_base;
> 44df08198bc98d drivers/gpio/gpio-mxs.c Arvind Yadav 2016-10-05 322 goto out_iounmap;
> 44df08198bc98d drivers/gpio/gpio-mxs.c Arvind Yadav 2016-10-05 323 }
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 324
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 325 port->domain = irq_domain_add_legacy(np, 32, irq_base, 0,
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 326 &irq_domain_simple_ops, NULL);
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 327 if (!port->domain) {
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 328 err = -ENODEV;
> 8514b5439c90f0 drivers/gpio/gpio-mxs.c Bartosz Golaszewski 2017-03-04 329 goto out_iounmap;
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 330 }
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 331
> 498c17cf6a9353 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-07 332 /* gpio-mxs can be a generic irq chip */
> 1bbc557d976b4e drivers/gpio/gpio-mxs.c Peng Fan 2015-08-23 333 err = mxs_gpio_init_gc(port, irq_base);
> 1bbc557d976b4e drivers/gpio/gpio-mxs.c Peng Fan 2015-08-23 334 if (err < 0)
> 1bbc557d976b4e drivers/gpio/gpio-mxs.c Peng Fan 2015-08-23 335 goto out_irqdomain_remove;
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 336
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 337 /* setup one handler for each entry */
> a44735f421b447 drivers/gpio/gpio-mxs.c Russell King 2015-06-16 338 irq_set_chained_handler_and_data(port->irq, mxs_gpio_irq_handler,
> a44735f421b447 drivers/gpio/gpio-mxs.c Russell King 2015-06-16 339 port);
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 340
> 0f4630f3720e7e drivers/gpio/gpio-mxs.c Linus Walleij 2015-12-04 341 err = bgpio_init(&port->gc, &pdev->dev, 4,
> 164387d2b4ae20 drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-03 342 port->base + PINCTRL_DIN(port),
> 90dae4ebf03063 drivers/gpio/gpio-mxs.c Maxime Ripard 2013-04-29 343 port->base + PINCTRL_DOUT(port) + MXS_SET,
> 90dae4ebf03063 drivers/gpio/gpio-mxs.c Maxime Ripard 2013-04-29 344 port->base + PINCTRL_DOUT(port) + MXS_CLR,
> 84a442b9a16ee6 drivers/gpio/gpio-mxs.c Linus Torvalds 2012-05-26 345 port->base + PINCTRL_DOE(port), NULL, 0);
> 8d7cf8370d5fb7 drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 346 if (err)
> 0f4630f3720e7e drivers/gpio/gpio-mxs.c Linus Walleij 2015-12-04 347 goto out_irqdomain_remove;
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 348
> 0f4630f3720e7e drivers/gpio/gpio-mxs.c Linus Walleij 2015-12-04 349 port->gc.to_irq = mxs_gpio_to_irq;
> 0f4630f3720e7e drivers/gpio/gpio-mxs.c Linus Walleij 2015-12-04 350 port->gc.get_direction = mxs_gpio_get_direction;
> 0f4630f3720e7e drivers/gpio/gpio-mxs.c Linus Walleij 2015-12-04 351 port->gc.base = port->id * 32;
> 06f88a8ae9085e drivers/gpio/gpio-mxs.c Shawn Guo 2011-06-06 352
> 0f4630f3720e7e drivers/gpio/gpio-mxs.c Linus Walleij 2015-12-04 353 err = gpiochip_add_data(&port->gc, port);
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 354 if (err)
> 0f4630f3720e7e drivers/gpio/gpio-mxs.c Linus Walleij 2015-12-04 355 goto out_irqdomain_remove;
> fba311fcf09873 arch/arm/mach-mxs/gpio.c Shawn Guo 2010-12-18 356
> 940a4f7b51f7ad drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 357 return 0;
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 358
> 1bbc557d976b4e drivers/gpio/gpio-mxs.c Peng Fan 2015-08-23 359 out_irqdomain_remove:
> 1bbc557d976b4e drivers/gpio/gpio-mxs.c Peng Fan 2015-08-23 360 irq_domain_remove(port->domain);
> 44df08198bc98d drivers/gpio/gpio-mxs.c Arvind Yadav 2016-10-05 361 out_iounmap:
> 44df08198bc98d drivers/gpio/gpio-mxs.c Arvind Yadav 2016-10-05 362 iounmap(port->base);
> 0b76c5412146c1 drivers/gpio/gpio-mxs.c Shawn Guo 2012-08-20 363 return err;
> 940a4f7b51f7ad drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 364 }
> 940a4f7b51f7ad drivers/gpio/gpio-mxs.c Shawn Guo 2012-05-04 365
>
> :::::: The code at line 293 was first introduced by commit
> :::::: 1f2d357b9ebef5c7ca7e7ee07234c08ac057c386 gpio: mxs: Use of_device_get_match_data()
>
> :::::: TO: Thierry Reding <treding@...dia.com>
> :::::: CC: Linus Walleij <linus.walleij@...aro.org>
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>
> --
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--
Thanks,
~Nick Desaulniers
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