linux-kernel - drivers/hv/channel.c:514: warning: Function parameter or member 'size' not described in 'request_arr

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Message-ID: <202401111558.xOlI0nqd-lkp@intel.com>
Date: Thu, 11 Jan 2024 15:17:38 +0800
From: kernel test robot <lkp@...el.com>
To: Andres Beltran <lkmlabelt@...il.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org, Wei Liu <wei.liu@...nel.org>,
	"Andrea Parri (Microsoft)" <parri.andrea@...il.com>,
	Michael Kelley <mikelley@...rosoft.com>
Subject: drivers/hv/channel.c:514: warning: Function parameter or member
 'size' not described in 'request_arr_init'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   de927f6c0b07d9e698416c5b287c521b07694cac
commit: e8b7db38449ac5b950a3f00519171c4be3e226ff Drivers: hv: vmbus: Add vmbus_requestor data structure for VMBus hardening
date:   3 years, 2 months ago
config: x86_64-buildonly-randconfig-006-20240105 (https://download.01.org/0day-ci/archive/20240111/202401111558.xOlI0nqd-lkp@intel.com/config)
compiler: ClangBuiltLinux clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240111/202401111558.xOlI0nqd-lkp@intel.com/reproduce)

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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401111558.xOlI0nqd-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/hv/channel.c:514: warning: Function parameter or member 'size' not described in 'request_arr_init'


vim +514 drivers/hv/channel.c

   505	
   506	/**
   507	 * request_arr_init - Allocates memory for the requestor array. Each slot
   508	 * keeps track of the next available slot in the array. Initially, each
   509	 * slot points to the next one (as in a Linked List). The last slot
   510	 * does not point to anything, so its value is U64_MAX by default.
   511	 * @size The size of the array
   512	 */
   513	static u64 *request_arr_init(u32 size)
 > 514	{
   515		int i;
   516		u64 *req_arr;
   517	
   518		req_arr = kcalloc(size, sizeof(u64), GFP_KERNEL);
   519		if (!req_arr)
   520			return NULL;
   521	
   522		for (i = 0; i < size - 1; i++)
   523			req_arr[i] = i + 1;
   524	
   525		/* Last slot (no more available slots) */
   526		req_arr[i] = U64_MAX;
   527	
   528		return req_arr;
   529	}
   530	

-- 
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https://github.com/intel/lkp-tests/wiki