Commit 3174b276 authored Jun 04, 2015 by Amit Pundir Committed by Ruchi Kandoi Jun 08, 2015

sched: cpufreq: update power usage only if cpufreq_stat is enabled



Call acct_update_power() to track power usage of task only if
CONFIG_CPU_FREQ_STAT is enabled, otherwise we run into
following build failure:
---------------
kernel/built-in.o: In function `account_user_time':
kernel/sched/cputime.c:155: undefined reference to `acct_update_power'
kernel/built-in.o: In function `__account_system_time':
kernel/sched/cputime.c:208: undefined reference to `acct_update_power'
make: *** [vmlinux] Error 1
---------------

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>

parent 553b785b

kernel/sched/cputime.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -151,8 +151,10 @@ void account_user_time(struct task_struct *p, cputime_t cputime,
		/* Account for user time used */
		acct_account_cputime(p);

		#ifdef CONFIG_CPU_FREQ_STAT
		/* Account power usage for user time */
		acct_update_power(p, cputime);
		#endif
		}

		/*
		@@ -204,8 +206,10 @@ void __account_system_time(struct task_struct *p, cputime_t cputime,
		/* Account for system time used */
		acct_account_cputime(p);

		#ifdef CONFIG_CPU_FREQ_STAT
		/* Account power usage for system time */
		acct_update_power(p, cputime);
		#endif
		}

		/*