Re: [PATCH v1 05/11] Bluetooth: btnxpuart: Add TLS host hello handshake implementation

[kernel test robot <lkp@intel.com>]

Hi Neeraj,

kernel test robot noticed the following build warnings:

[auto build test WARNING on bluetooth/master]
[also build test WARNING on bluetooth-next/master linus/master v6.18-rc6 next-20251121]
[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/Neeraj-Sanjay-Kale/Bluetooth-btnxpuart-Add-firmware-metadata-parsing-for-secure-interface/20251118-223605
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git master
patch link:    https://lore.kernel.org/r/20251118142025.1982263-6-neeraj.sanjaykale%40nxp.com
patch subject: [PATCH v1 05/11] Bluetooth: btnxpuart: Add TLS host hello handshake implementation
config: arm-randconfig-001-20251122 (https://download.01.org/0day-ci/archive/20251122/202511221150.4Zd49lpF-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9e9fe08b16ea2c4d9867fb4974edf2a3776d6ece)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251122/202511221150.4Zd49lpF-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/oe-kbuild-all/202511221150.4Zd49lpF-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/bluetooth/btnxpuart.c:438:29: warning: field host_hello within 'struct nxp_tls_host_hello_payload::(anonymous at drivers/bluetooth/btnxpuart.c:436:2)' is less aligned than 'struct nxp_tls_host_hello' and is usually due to 'struct nxp_tls_host_hello_payload::(anonymous at drivers/bluetooth/btnxpuart.c:436:2)' being packed, which can lead to unaligned accesses [-Wunaligned-access]
     438 |                 struct nxp_tls_host_hello host_hello;
         |                                           ^
   drivers/bluetooth/btnxpuart.c:1828:1: warning: unused label 'free_skb' [-Wunused-label]
    1828 | free_skb:
         | ^~~~~~~~~
   2 warnings generated.


vim +438 drivers/bluetooth/btnxpuart.c

   434	
   435	union nxp_tls_host_hello_payload {
   436		struct {
   437			u8 msg_type;
 > 438			struct nxp_tls_host_hello host_hello;
   439		} __packed;
   440		u8 buf[113];
   441	};
   442	

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