Re: [PATCH] cpufreq: Avoid creating excessively large stack frames

From: kbuild test robot
Date: Fri Jan 24 2020 - 20:55:38 EST


Hi "Rafael,

I love your patch! Yet something to improve:

[auto build test ERROR on pm/linux-next]
[also build test ERROR on linux/master linus/master v5.5-rc7 next-20200124]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Rafael-J-Wysocki/cpufreq-Avoid-creating-excessively-large-stack-frames/20200124-214109
base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: i386-allyesconfig (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

drivers//cpufreq/longrun.c: In function 'longrun_verify_policy':
>> drivers//cpufreq/longrun.c:133:13: error: 'struct cpufreq_policy_data' has no member named 'policy'
if ((policy->policy != CPUFREQ_POLICY_POWERSAVE) &&
^~
drivers//cpufreq/longrun.c:134:13: error: 'struct cpufreq_policy_data' has no member named 'policy'
(policy->policy != CPUFREQ_POLICY_PERFORMANCE))
^~

vim +133 drivers//cpufreq/longrun.c

^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 116
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 117
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 118 /**
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 119 * longrun_verify_poliy - verifies a new CPUFreq policy
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 120 * @policy: the policy to verify
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 121 *
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 122 * Validates a new CPUFreq policy. This function has to be called with
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 123 * cpufreq_driver locked.
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 124 */
3c163f547db03b drivers/cpufreq/longrun.c Rafael J. Wysocki 2020-01-23 125 static int longrun_verify_policy(struct cpufreq_policy_data *policy)
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 126 {
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 127 if (!policy)
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 128 return -EINVAL;
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 129
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 130 policy->cpu = 0;
be49e3465f222b drivers/cpufreq/longrun.c Viresh Kumar 2013-10-02 131 cpufreq_verify_within_cpu_limits(policy);
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 132
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 @133 if ((policy->policy != CPUFREQ_POLICY_POWERSAVE) &&
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 134 (policy->policy != CPUFREQ_POLICY_PERFORMANCE))
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 135 return -EINVAL;
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 136
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 137 return 0;
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 138 }
^1da177e4c3f41 arch/i386/kernel/cpu/cpufreq/longrun.c Linus Torvalds 2005-04-16 139

:::::: The code at line 133 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>

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