linux-kernel - Re: [PATCH v9 1/4] drm/lsdc: add drm driver for loongson display controller

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Message-ID: <202202180117.mOkyPaZs-lkp@intel.com>
Date:   Fri, 18 Feb 2022 03:46:36 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sui Jingfeng <15330273260@....cn>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Roland Scheidegger <sroland@...are.com>,
        Zack Rusin <zackr@...are.com>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Dan Carpenter <error27@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Andrey Zhizhikin <andrey.zhizhikin@...ca-geosystems.com>,
        Sam Ravnborg <sam@...nborg.org>,
        "David S . Miller" <davem@...emloft.net>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Ilia Mirkin <imirkin@...m.mit.edu>,
        Qing Zhang <zhangqing@...ngson.cn>,
        suijingfeng <suijingfeng@...ngson.cn>
Cc:     kbuild-all@...ts.01.org, devicetree@...r.kernel.org,
        kernel test robot <lkp@...el.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        linux-mips@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 1/4] drm/lsdc: add drm driver for loongson display
 controller

Hi Sui,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm/drm-next]
[also build test WARNING on robh/for-next v5.17-rc4 next-20220217]
[cannot apply to mripard/sunxi/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Sui-Jingfeng/drm-lsdc-add-drm-driver-for-loongson-display-controller/20220217-185718
base:   git://anongit.freedesktop.org/drm/drm drm-next
config: csky-randconfig-s032-20220217 (https://download.01.org/0day-ci/archive/20220218/202202180117.mOkyPaZs-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 11.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/0day-ci/linux/commit/822d08dcd4408130e10897446cfdd640bcd53c8a
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Sui-Jingfeng/drm-lsdc-add-drm-driver-for-loongson-display-controller/20220217-185718
        git checkout 822d08dcd4408130e10897446cfdd640bcd53c8a
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=csky SHELL=/bin/bash drivers/gpu/drm/lsdc/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>


sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/lsdc/lsdc_pll.c:168:9: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/gpu/drm/lsdc/lsdc_pll.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/io.h, include/linux/irq.h, ...):
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32

vim +/__iomem +168 drivers/gpu/drm/lsdc/lsdc_pll.c

   158	
   159	/**
   160	 * lsdc_pixpll_setup - ioremap the device dependent PLL registers
   161	 *
   162	 * @this: point to the object which this function is called from
   163	 */
   164	static int lsdc_pixpll_setup(struct lsdc_pll * const this)
   165	{
   166		this->mmio = ioremap(this->reg_base, this->reg_size);
   167	
 > 168		drm_dbg(this->ddev, "PIXPLL%u REG[%x, %u] map to %llx\n",
   169			this->index, this->reg_base, this->reg_size, (u64)this->mmio);
   170	
   171		return 0;
   172	}
   173	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org