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Date:   Thu, 26 Oct 2023 05:26:13 +0800
From:   kernel test robot <lkp@...el.com>
To:     jeshwank <JESHWANTHKUMAR.NK@....com>, thomas.lendacky@....com,
        john.allen@....com, herbert@...dor.apana.org.au,
        davem@...emloft.net, jens.wiklander@...aro.org,
        sumit.garg@...aro.org, jarkko.nikula@...ux.intel.com,
        mario.limonciello@....com, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org, op-tee@...ts.trustedfirmware.org
Cc:     oe-kbuild-all@...ts.linux.dev, Mythri.Pandeshwarakrishna@....com,
        Devaraj.Rangasamy@....com, Rijo-john.Thomas@....com,
        nimesh.easow@....com, JESHWANTHKUMAR.NK@....com
Subject: Re: [PATCH 2/3] crypto: ccp - Use psp_tee_alloc_buffer() and
 psp_tee_free_buffer()

Hi jeshwank,

kernel test robot noticed the following build warnings:

[auto build test WARNING on herbert-crypto-2.6/master]
[also build test WARNING on linus/master v6.6-rc7]
[cannot apply to herbert-cryptodev-2.6/master next-20231025]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/jeshwank/crypto-ccp-Add-function-to-allocate-and-free-memory-using-DMA-APIs/20231025-150420
base:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git master
patch link:    https://lore.kernel.org/r/20231025065700.1556152-3-JESHWANTHKUMAR.NK%40amd.com
patch subject: [PATCH 2/3] crypto: ccp - Use psp_tee_alloc_buffer() and psp_tee_free_buffer()
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20231026/202310260529.GEey5HQc-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231026/202310260529.GEey5HQc-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/202310260529.GEey5HQc-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/crypto/ccp/tee-dev.c:123:24: warning: no previous prototype for 'tee_alloc_cmd_buffer' [-Wmissing-prototypes]
     123 | struct psp_tee_buffer *tee_alloc_cmd_buffer(struct psp_tee_device *tee)
         |                        ^~~~~~~~~~~~~~~~~~~~


vim +/tee_alloc_cmd_buffer +123 drivers/crypto/ccp/tee-dev.c

   122	
 > 123	struct psp_tee_buffer *tee_alloc_cmd_buffer(struct psp_tee_device *tee)
   124	{
   125		struct tee_init_ring_cmd *cmd;
   126		struct psp_tee_buffer *cmd_buffer;
   127	
   128		cmd_buffer = psp_tee_alloc_buffer(sizeof(*cmd),
   129						  GFP_KERNEL | __GFP_ZERO);
   130		if (!cmd_buffer)
   131			return NULL;
   132	
   133		cmd = (struct tee_init_ring_cmd *)cmd_buffer->vaddr;
   134		cmd->hi_addr = upper_32_bits(tee->rb_mgr.ring_buf->paddr);
   135		cmd->low_addr = lower_32_bits(tee->rb_mgr.ring_buf->paddr);
   136		cmd->size = tee->rb_mgr.ring_buf->size;
   137	
   138		dev_dbg(tee->dev, "tee: ring address: high = 0x%x low = 0x%x size = %u\n",
   139			cmd->hi_addr, cmd->low_addr, cmd->size);
   140	
   141		return cmd_buffer;
   142	}
   143	

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

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