Re: [PATCH v7] crypto: qce - Add runtime PM and interconnect bandwidth scaling support

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

Hi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on herbert-cryptodev-2.6/master]
[also build test WARNING on herbert-crypto-2.6/master linus/master v6.19 next-20260220]
[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/quic_utiwari-quicinc-com/crypto-qce-Add-runtime-PM-and-interconnect-bandwidth-scaling-support/20260220-153052
base:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
patch link:    https://lore.kernel.org/r/20260220072818.2921517-1-quic_utiwari%40quicinc.com
patch subject: [PATCH v7] crypto: qce - Add runtime PM and interconnect bandwidth scaling support
config: x86_64-buildonly-randconfig-004-20260221 (https://download.01.org/0day-ci/archive/20260221/202602210452.d7at3UQJ-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260221/202602210452.d7at3UQJ-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/202602210452.d7at3UQJ-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/uapi/linux/posix_types.h:5,
                    from include/uapi/linux/types.h:14,
                    from include/linux/types.h:6,
                    from include/linux/kasan-checks.h:5,
                    from include/asm-generic/rwonce.h:26,
                    from ./arch/x86/include/generated/asm/rwonce.h:1,
                    from include/linux/compiler.h:380,
                    from include/linux/cleanup.h:5,
                    from drivers/crypto/qce/core.c:6:
   drivers/crypto/qce/core.c: In function 'qce_runtime_suspend':
   include/linux/stddef.h:8:14: error: called object is not a function or function pointer
       8 | #define NULL ((void *)0)
         |              ^
   include/linux/pm_clock.h:77:25: note: in expansion of macro 'NULL'
      77 | #define pm_clk_suspend  NULL
         |                         ^~~~
   drivers/crypto/qce/core.c:285:16: note: in expansion of macro 'pm_clk_suspend'
     285 |         return pm_clk_suspend(dev);
         |                ^~~~~~~~~~~~~~
   drivers/crypto/qce/core.c: In function 'qce_runtime_resume':
   include/linux/stddef.h:8:14: error: called object is not a function or function pointer
       8 | #define NULL ((void *)0)
         |              ^
   include/linux/pm_clock.h:78:25: note: in expansion of macro 'NULL'
      78 | #define pm_clk_resume   NULL
         |                         ^~~~
   drivers/crypto/qce/core.c:293:15: note: in expansion of macro 'pm_clk_resume'
     293 |         ret = pm_clk_resume(dev);
         |               ^~~~~~~~~~~~~
   include/linux/stddef.h:8:14: error: called object is not a function or function pointer
       8 | #define NULL ((void *)0)
         |              ^
   include/linux/pm_clock.h:77:25: note: in expansion of macro 'NULL'
      77 | #define pm_clk_suspend  NULL
         |                         ^~~~
   drivers/crypto/qce/core.c:304:9: note: in expansion of macro 'pm_clk_suspend'
     304 |         pm_clk_suspend(dev);
         |         ^~~~~~~~~~~~~~
   drivers/crypto/qce/core.c: In function 'qce_runtime_suspend':
>> drivers/crypto/qce/core.c:286:1: warning: control reaches end of non-void function [-Wreturn-type]
     286 | }
         | ^

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for CAN_DEV
   Depends on [n]: NETDEVICES [=n] && CAN [=m]
   Selected by [m]:
   - CAN [=m] && NET [=y]


vim +286 drivers/crypto/qce/core.c

   278	
   279	static int __maybe_unused qce_runtime_suspend(struct device *dev)
   280	{
   281		struct qce_device *qce = dev_get_drvdata(dev);
   282	
   283		icc_disable(qce->mem_path);
   284	
   285		return pm_clk_suspend(dev);
 > 286	}
   287	
   288	static int __maybe_unused qce_runtime_resume(struct device *dev)
   289	{
   290		struct qce_device *qce = dev_get_drvdata(dev);
   291		int ret = 0;
   292	
   293		ret = pm_clk_resume(dev);
   294		if (ret)
   295			return ret;
   296	
   297		ret = icc_set_bw(qce->mem_path, QCE_DEFAULT_MEM_BANDWIDTH, QCE_DEFAULT_MEM_BANDWIDTH);
   298		if (ret)
   299			goto err_icc;
   300	
   301		return 0;
   302	
   303	err_icc:
 > 304		pm_clk_suspend(dev);
   305		return ret;
   306	}
   307	

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