Re: [RFC PATCH] tpm: Allow the TPM2 pcr_extend HMAC capability to be disabled on boot

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

Hi Mimi,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on char-misc/char-misc-next char-misc/char-misc-linus linus/master v6.12-rc3 next-20241018]
[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/Mimi-Zohar/tpm-Allow-the-TPM2-pcr_extend-HMAC-capability-to-be-disabled-on-boot/20241016-034118
base:   char-misc/char-misc-testing
patch link:    https://lore.kernel.org/r/20241015193916.59964-1-zohar%40linux.ibm.com
patch subject: [RFC PATCH] tpm: Allow the TPM2 pcr_extend HMAC capability to be disabled on boot
config: i386-buildonly-randconfig-001-20241019 (https://download.01.org/0day-ci/archive/20241019/202410191604.NTblCQBg-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/20241019/202410191604.NTblCQBg-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/202410191604.NTblCQBg-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/char/tpm/tpm2-cmd.c:18:19: warning: 'tpm2_pcr_extend_hmac_setup' defined but not used [-Wunused-function]
      18 | static int __init tpm2_pcr_extend_hmac_setup(char *str)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/tpm2_pcr_extend_hmac_setup +18 drivers/char/tpm/tpm2-cmd.c

    16	
    17	static int __ro_after_init tpm2_pcr_extend_hmac = 1;
  > 18	static int __init tpm2_pcr_extend_hmac_setup(char *str)
    19	{
    20		tpm2_pcr_extend_hmac = 0;
    21		return 0;
    22	}
    23	__setup("tpm2_pcr_extend_hmac_disable", tpm2_pcr_extend_hmac_setup);
    24	

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