Defined in 4 files as a config:

• drivers/cpufreq/Kconfig, line 47 (as a config)
• drivers/gpu/drm/i915/display/dvo_ch7xxx.c, line 21 (as a config)
• fs/btrfs/dir-item.h, line 21 (as a config)
• tools/testing/selftests/net/txtimestamp.sh, line 21 (as a config)

Referenced in 2 files:

• drivers/cpufreq/Kconfig, line 42
• drivers/cpufreq/cpufreq_performance.c, line 27