[jens.wiklander:testing/tuxbuild 2/9] drivers/tee/tee_shm_pool.c:17:20: sparse: sparse: incompatible types in comparison expression (different type sizes):

[jens.wiklander:testing/tuxbuild 2/9] drivers/tee/tee_shm_pool.c:17:20: sparse: sparse: incompatible types in comparison expression (different type sizes):

[kernel test robot]

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tree:   https://git.linaro.org/people/jens.wiklander/linux-tee.git testing/tuxbuild
head:   64b34f1f528483a323edea85a568a5edd5c5995f
commit: 563d58a2fc7eb34648cd7b57e30b15dfc03677e5 [2/9] tee: simplify shm pool handling
config: sparc64-randconfig-s032-20210416 (attached as .config)
compiler: sparc64-linux-gcc (GCC) 9.3.0
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: v0.6.3-280-g2cd6d34e-dirty
        git remote add jens.wiklander https://git.linaro.org/people/jens.wiklander/linux-tee.git
        git fetch --no-tags jens.wiklander testing/tuxbuild
        git checkout 563d58a2fc7eb34648cd7b57e30b15dfc03677e5
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=sparc64 

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


sparse warnings: (new ones prefixed by >>)
>> drivers/tee/tee_shm_pool.c:17:20: sparse: sparse: incompatible types in comparison expression (different type sizes):
>> drivers/tee/tee_shm_pool.c:17:20: sparse:    unsigned long *
>> drivers/tee/tee_shm_pool.c:17:20: sparse:    unsigned int *

vim +17 drivers/tee/tee_shm_pool.c

    11	
    12	static int pool_op_gen_alloc(struct tee_shm_pool_mgr *poolm,
    13				     struct tee_shm *shm, size_t size, size_t align)
    14	{
    15		unsigned long va;
    16		struct gen_pool *genpool = poolm->private_data;
  > 17		size_t a = max(align, 1U << genpool->min_alloc_order);
    18		struct genpool_data_align data = { .align = a };
    19		size_t s = roundup(size, a);
    20	
    21		va = gen_pool_alloc_algo(genpool, s, gen_pool_first_fit_align, &data);
    22		if (!va)
    23			return -ENOMEM;
    24	
    25		memset((void *)va, 0, s);
    26		shm->kaddr = (void *)va;
    27		shm->paddr = gen_pool_virt_to_phys(genpool, va);
    28		shm->size = s;
    29		/*
    30		 * This is from a static shared memory pool so no need to register
    31		 * each chunk, and no need to unregister later either.
    32		 */
    33		shm->flags &= ~TEE_SHM_REGISTER;
    34		return 0;
    35	}
    36	

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

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