Date: Fri, 12 Apr 2024 19:19:37 +0800
From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: [char-misc:char-misc-next 11/26] vmbus_bufring.c:172:37: warning:
 taking address of packed member of 'struct vmbus_bufring' may result in an
 unaligned pointer value
Message-ID: <202404121913.GhtSoKbW-lkp@intel.com>
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:::::: 
:::::: Manual check reason: "low confidence bisect report"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Saurabh Sengar <ssengar@linux.microsoft.com>
CC: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>
CC: Long Li <longli@microsoft.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git char-misc-next
head:   dc806bd48abc1b8a4ae72709a37e65db42a32048
commit: 82b0945ce2c2d636d5e893ad50210875c929f257 [11/26] tools: hv: Add new fcopy application based on uio driver
:::::: branch date: 22 hours ago
:::::: commit date: 22 hours ago
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240412/202404121913.GhtSoKbW-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@intel.com>
| Closes: https://lore.kernel.org/r/202404121913.GhtSoKbW-lkp@intel.com/

All warnings (new ones prefixed by >>):

   vmbus_bufring.c: In function 'vmbus_txbr_write':
>> vmbus_bufring.c:172:37: warning: taking address of packed member of 'struct vmbus_bufring' may result in an unaligned pointer value [-Waddress-of-packed-member]
     172 |         while (!rte_atomic32_cmpset(&vbr->windex, old_windex, next_windex))
         |                                     ^~~~~~~~~~~~

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