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Date:   Mon, 25 Mar 2019 15:50:24 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Aditya Pakki <pakki001@....edu>
Cc:     kbuild-all@...org, pakki001@....edu, kjlu@....edu,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Vinod Koul <vkoul@...nel.org>, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] tty: 8250: fix a missing check for pci_ioremap_bar

Hi Aditya,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on v5.1-rc2 next-20190325]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Aditya-Pakki/tty-8250-fix-a-missing-check-for-pci_ioremap_bar/20190325-151723
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: i386-randconfig-x013-201912 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/tty/serial/8250/8250_lpss.c: In function 'qrk_serial_exit_dma':
>> drivers/tty/serial/8250/8250_lpss.c:207:45: error: invalid type argument of '->' (have 'struct dw_dma_chip')
     pci_iounmap(param->dma_dev, &lpss->dma_chip->regs);
                                                ^~
>> drivers/tty/serial/8250/8250_lpss.c:207:14: error: passing argument 1 of 'pci_iounmap' from incompatible pointer type [-Werror=incompatible-pointer-types]
     pci_iounmap(param->dma_dev, &lpss->dma_chip->regs);
                 ^~~~~
   In file included from arch/x86/include/asm/io.h:232:0,
                    from arch/x86/include/asm/realmode.h:15,
                    from arch/x86/include/asm/acpi.h:33,
                    from arch/x86/include/asm/fixmap.h:29,
                    from arch/x86/include/asm/apic.h:10,
                    from arch/x86/include/asm/smp.h:13,
                    from include/linux/smp.h:68,
                    from include/linux/topology.h:33,
                    from include/linux/gfp.h:9,
                    from include/linux/umh.h:4,
                    from include/linux/kmod.h:22,
                    from include/linux/module.h:13,
                    from drivers/tty/serial/8250/8250_lpss.c:10:
   include/asm-generic/iomap.h:107:13: note: expected 'struct pci_dev *' but argument is of type 'struct device *'
    extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
                ^~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +207 drivers/tty/serial/8250/8250_lpss.c

   197	
   198	static void qrk_serial_exit_dma(struct lpss8250 *lpss)
   199	{
   200		struct dw_dma_slave *param = &lpss->dma_param;
   201	
   202		if (!param->dma_dev)
   203			return;
   204	
   205		dw_dma_remove(&lpss->dma_chip);
   206	
 > 207		pci_iounmap(param->dma_dev, &lpss->dma_chip->regs);
   208	}
   209	#else	/* CONFIG_SERIAL_8250_DMA */
   210	static void qrk_serial_setup_dma(struct lpss8250 *lpss, struct uart_port *port) {}
   211	static void qrk_serial_exit_dma(struct lpss8250 *lpss) {}
   212	#endif	/* !CONFIG_SERIAL_8250_DMA */
   213	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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