linux-kernel - drivers/firmware/raspberrypi.c:234:17: sparse: sparse: incorrect type in initializer (different base types)

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Message-ID: <202212221338.0UroUcVq-lkp@intel.com>
Date:   Thu, 22 Dec 2022 14:00:23 +0800
From:   kernel test robot <lkp@...el.com>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>
Subject: drivers/firmware/raspberrypi.c:234:17: sparse: sparse: incorrect
 type in initializer (different base types)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9d2f6060fe4c3b49d0cdc1dce1c99296f33379c8
commit: 40c31955e4e9ff268d21c0a8009e35f4cfaa167c firmware: raspberrypi: Provide a helper to query a clock max rate
date:   8 weeks ago
config: arm64-randconfig-s042-20221218
compiler: aarch64-linux-gcc (GCC) 12.1.0
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: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40c31955e4e9ff268d21c0a8009e35f4cfaa167c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 40c31955e4e9ff268d21c0a8009e35f4cfaa167c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/firmware/

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

sparse warnings: (new ones prefixed by >>)
>> drivers/firmware/raspberrypi.c:234:17: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted __le32 [usertype] id @@     got unsigned int id @@
   drivers/firmware/raspberrypi.c:234:17: sparse:     expected restricted __le32 [usertype] id
   drivers/firmware/raspberrypi.c:234:17: sparse:     got unsigned int id

vim +234 drivers/firmware/raspberrypi.c

   230	
   231	unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw, unsigned int id)
   232	{
   233		struct rpi_firmware_clk_rate_request msg =
 > 234			RPI_FIRMWARE_CLK_RATE_REQUEST(id);
   235		int ret;
   236	
   237		ret = rpi_firmware_property(fw, RPI_FIRMWARE_GET_MAX_CLOCK_RATE,
   238					    &msg, sizeof(msg));
   239		if (ret)
   240			/*
   241			 * If our firmware doesn't support that operation, or fails, we
   242			 * assume the maximum clock rate is absolute maximum we can
   243			 * store over our type.
   244			 */
   245			 return UINT_MAX;
   246	
   247		return le32_to_cpu(msg.rate);
   248	}
   249	EXPORT_SYMBOL_GPL(rpi_firmware_clk_get_max_rate);
   250	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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