[avpatel:riscv_mpxy_imp_v1 2/5] arch/riscv/kernel/sbi_mpxy.c:104:19-20: WARNING opportunity for min()

[avpatel:riscv_mpxy_imp_v1 2/5] arch/riscv/kernel/sbi_mpxy.c:104:19-20: WARNING opportunity for min()

[kernel test robot]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Anup Patel <anup.patel@oss.qualcomm.com>
CC: Himanshu Chauhan <himanshu.chauhan@oss.qualcomm.com>

tree:   https://github.com/avpatel/linux.git riscv_mpxy_imp_v1
head:   48be05a1fcc231a756503546729aefd39ba8ca76
commit: 6439174960c8ce56a3b4ce6eb5fabde7bdaae27a [2/5] RISC-V: Move common MPXY helper routines to arch/riscv
:::::: branch date: 9 hours ago
:::::: commit date: 9 hours ago
config: riscv-randconfig-r2103-20260930 (https://download.01.org/0day-ci/archive/20260930/202609301955.YFKKcuVe-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Julia Lawall <julia.lawall@inria.fr>
| Closes: https://lore.kernel.org/r/202609301955.YFKKcuVe-lkp@intel.com/

cocci warnings: (new ones prefixed by >>)
>> arch/riscv/kernel/sbi_mpxy.c:104:19-20: WARNING opportunity for min()

vim +104 arch/riscv/kernel/sbi_mpxy.c

6439174960c8ce Anup Patel 2026-05-26   80  
6439174960c8ce Anup Patel 2026-05-26   81  int sbi_mpxy_get_channel_ids(u32 channel_count, u32 *channel_ids)
6439174960c8ce Anup Patel 2026-05-26   82  {
6439174960c8ce Anup Patel 2026-05-26   83  	struct mpxy_local *mpxy = this_cpu_ptr(&mpxy_local);
6439174960c8ce Anup Patel 2026-05-26   84  	struct sbi_mpxy_channel_ids_data *sdata = mpxy->shmem;
6439174960c8ce Anup Patel 2026-05-26   85  	u32 remaining, returned, count, start_index = 0;
6439174960c8ce Anup Patel 2026-05-26   86  	struct sbiret sret;
6439174960c8ce Anup Patel 2026-05-26   87  
6439174960c8ce Anup Patel 2026-05-26   88  	if (!mpxy->shmem_active)
6439174960c8ce Anup Patel 2026-05-26   89  		return -ENODEV;
6439174960c8ce Anup Patel 2026-05-26   90  	if (!channel_count || !channel_ids)
6439174960c8ce Anup Patel 2026-05-26   91  		return -EINVAL;
6439174960c8ce Anup Patel 2026-05-26   92  
6439174960c8ce Anup Patel 2026-05-26   93  	get_cpu();
6439174960c8ce Anup Patel 2026-05-26   94  
6439174960c8ce Anup Patel 2026-05-26   95  	do {
6439174960c8ce Anup Patel 2026-05-26   96  		sret = sbi_ecall(SBI_EXT_MPXY, SBI_EXT_MPXY_GET_CHANNEL_IDS,
6439174960c8ce Anup Patel 2026-05-26   97  				 start_index, 0, 0, 0, 0, 0);
6439174960c8ce Anup Patel 2026-05-26   98  		if (sret.error)
6439174960c8ce Anup Patel 2026-05-26   99  			goto err_put_cpu;
6439174960c8ce Anup Patel 2026-05-26  100  
6439174960c8ce Anup Patel 2026-05-26  101  		remaining = le32_to_cpu(sdata->remaining);
6439174960c8ce Anup Patel 2026-05-26  102  		returned = le32_to_cpu(sdata->returned);
6439174960c8ce Anup Patel 2026-05-26  103  
6439174960c8ce Anup Patel 2026-05-26 @104  		count = returned < (channel_count - start_index) ?
6439174960c8ce Anup Patel 2026-05-26  105  			returned : (channel_count - start_index);
6439174960c8ce Anup Patel 2026-05-26  106  		memcpy_from_le32(&channel_ids[start_index], sdata->channel_array, count);
6439174960c8ce Anup Patel 2026-05-26  107  		start_index += count;
6439174960c8ce Anup Patel 2026-05-26  108  	} while (remaining && start_index < channel_count);
6439174960c8ce Anup Patel 2026-05-26  109  
6439174960c8ce Anup Patel 2026-05-26  110  err_put_cpu:
6439174960c8ce Anup Patel 2026-05-26  111  	put_cpu();
6439174960c8ce Anup Patel 2026-05-26  112  	return sbi_err_map_linux_errno(sret.error);
6439174960c8ce Anup Patel 2026-05-26  113  }
6439174960c8ce Anup Patel 2026-05-26  114  EXPORT_SYMBOL_GPL(sbi_mpxy_get_channel_ids);
6439174960c8ce Anup Patel 2026-05-26  115  

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki