Question

我一直试图找出为什么当我尝试编译我的Android内核时，它给了我智能调控器的这个错误：

drivers/cpufreq/cpufreq_smartass2.c:844:2: error: unknown field 'suspend' specified in initializer
      .suspend = smartass_early_suspend,
      ^
    drivers/cpufreq/cpufreq_smartass2.c:844:13: warning: excess elements in struct initializer
    error, forbidden warning: cpufreq_smartass2.c:844
    make[2]: *** [drivers/cpufreq/cpufreq_smartass2.o] Error 1
    make[1]: *** [drivers/cpufreq] Error 2
    make: *** [drivers] Error 2
    make: *** Waiting for unfinished jobs....

我检查了给我错误的行，它是变量的初始化，它是结构数据结构的成员。代码如下：

static struct early_suspend smartass_power_suspend = {
        .suspend = smartass_early_suspend,
        .resume = smartass_late_resume,
    #ifdef CONFIG_MACH_HERO
        .level = EARLY_SUSPEND_LEVEL_DISABLE_FB + 1,
    #endif
    };

以下是完整代码：

static void smartass_suspend(int cpu, int suspend)
{
    struct smartass_info_s *this_smartass = &per_cpu(smartass_info, smp_processor_id());
    struct cpufreq_policy *policy = this_smartass->cur_policy;
    unsigned int new_freq;

    if (!this_smartass->enable)
        return;

    smartass_update_min_max(this_smartass,policy,suspend);
    if (!suspend) { // resume at max speed:
        new_freq = validate_freq(policy,sleep_wakeup_freq);

        dprintk(SMARTASS_DEBUG_JUMPS,"SmartassS: awaking at %d\n",new_freq);
        __cpufreq_driver_target(policy, new_freq,
                    CPUFREQ_RELATION_L);
    } else {
        // to avoid wakeup issues with quick sleep/wakeup don't change actual frequency when entering sleep
        // to allow some time to settle down. Instead we just reset our statistics (and reset the timer).
        // Eventually, the timer will adjust the frequency if necessary.

        this_smartass->freq_change_time_in_idle =
            get_cpu_idle_time_us(cpu,&this_smartass->freq_change_time);

        dprintk(SMARTASS_DEBUG_JUMPS,"SmartassS: suspending at %d\n",policy->cur);
    }

    reset_timer(smp_processor_id(),this_smartass);
}

static void smartass_early_suspend(struct early_suspend *handler) {
    int i;
    if (suspended || sleep_ideal_freq==0) // disable behavior for sleep_ideal_freq==0
        return;
    suspended = 1;
    for_each_online_cpu(i)
        smartass_suspend(i,1);
}

static void smartass_late_resume(struct early_suspend *handler) {
    int i;
    if (!suspended) // already not suspended so nothing to do
        return;
    suspended = 0;
    for_each_online_cpu(i)
        smartass_suspend(i,0);
}

static struct early_suspend smartass_power_suspend = {
    .suspend = smartass_early_suspend,
    .resume = smartass_late_resume,
#ifdef CONFIG_MACH_HERO
    .level = EARLY_SUSPEND_LEVEL_DISABLE_FB + 1,
#endif
};

代码在语法上看起来是正确的，我遇到了这个问题。有人可以帮忙吗？

Answer 1

感谢@Tsyvarev我修复了＆＃34;未知字段的问题＆＃39;暂停＆＃39;在初始化程序中指定＆＃34;

在尝试添加其他调控器并尝试编译后，我收到了我已添加的新错误消息

drivers/built-in.o: In function cpufreq_smartass_init':
/home/nick/android/LGD722LKernel/drivers/cpufreq/cpufreq_smartass2.c:898: undefined reference to `register_early_suspend'

Link to the complete code for cpufreq_smartass2.c

Link to the complete code for earlysuspend.h

我检查了函数register_eary_suspend及其调用方式以及参数传递给函数的方式看起来是正确的。我认为它可能来自makefile，但这只是我的意见。如果有人有任何其他想法可能是什么问题，请分享我没有太多的内核开发经验，你的想法/建议将真正帮助我。

如何在编译smartass调控器时修复初始化程序中指定的未知字段'suspend'？

1 个答案: