[android-common:mirror-chromeos-5.10-arcvm 5/5] drivers/cpufreq/goldfish_cpufreq_stats.c:28:9: warning: this decimal constant is unsigned only in ISO C90

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

Hi Weilun,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common mirror-chromeos-5.10-arcvm
head:   1691ede0a60c1fb31b68de026528cd7dda21029e
commit: a3f6baa6885122bc9b7f8ed273fd789a5f52fac3 [5/5] ANDROID: goldfish_cpufreq: Add goldfish cpufreq stats driver
config: arm-randconfig-r2301-20261113 (https://download.01.org/0day-ci/archive/20261113/202611131804.Hencs4w7-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 15.3.0
sparse: v0.6.5-rc1-21-g84ec0658
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261113/202611131804.Hencs4w7-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/202611131804.Hencs4w7-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/cpufreq/goldfish_cpufreq_stats.c: In function 'time_in_state_show':
>> drivers/cpufreq/goldfish_cpufreq_stats.c:28:9: warning: this decimal constant is unsigned only in ISO C90
      28 |         len = sprintf(buf, "%lu %llu\n", 3000000000, ++fake_time);
         |         ^~~
   drivers/cpufreq/goldfish_cpufreq_stats.c: In function 'cpufreq_stats_create':
   drivers/cpufreq/goldfish_cpufreq_stats.c:56:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
      56 |         int ret;
         |             ^~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for WIRELESS_EXT
   Depends on [n]: NET [=n] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for WEXT_SPY
   Depends on [n]: NET [=n] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for WEXT_CORE
   Depends on [n]: NET [=n] && WIRELESS [=n] && (CFG80211_WEXT [=n] || WIRELESS_EXT [=y])
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for NET_PTP_CLASSIFY
   Depends on [n]: NET [=n]
   Selected by [y]:
   - GKI_HIDDEN_NET_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for DRM_TTM
   Depends on [n]: HAS_IOMEM [=y] && DRM [=y] && MMU [=n]
   Selected by [y]:
   - GKI_HIDDEN_DRM_CONFIGS [=y] && HAS_IOMEM [=y] && DRM [=y]
   WARNING: unmet direct dependencies detected for HVC_DRIVER
   Depends on [n]: TTY [=n]
   Selected by [y]:
   - GKI_HIDDEN_VIRTUAL_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for WEXT_PROC
   Depends on [n]: NET [=n] && WIRELESS [=n] && PROC_FS [=n] && WEXT_CORE [=y]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for WEXT_PRIV
   Depends on [n]: NET [=n] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for PAGE_POOL
   Depends on [n]: NET [=n]
   Selected by [y]:
   - GKI_HIDDEN_NET_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for BALLOON_COMPACTION
   Depends on [n]: COMPACTION [=n] && MEMORY_BALLOON [=y]
   Selected by [y]:
   - GKI_HIDDEN_MM_CONFIGS [=y]


vim +28 drivers/cpufreq/goldfish_cpufreq_stats.c

    22	
    23	static ssize_t time_in_state_show(struct kobject *kobj,
    24			struct kobj_attribute *attr, char *buf)
    25	{
    26		ssize_t len = 0;
    27	
  > 28		len = sprintf(buf, "%lu %llu\n", 3000000000, ++fake_time);
    29		return len;
    30	}
    31	

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