Hi MyungJoo, FYI, kernel build failed on tree: git://git.infradead.org/users/kmpark/linux-samsung devfreq-for-next head: 6f2fe082f51cf10ea622e21bff4f5d313decee36 commit: 6f2fe082f51cf10ea622e21bff4f5d313decee36 [4/4] PM / devfreq: add global PM QoS support config: x86_64-allyesconfig Note: the HEAD commit builds fine. It only hurts bisectibility. All error/warnings: drivers/devfreq/devfreq.c: In function 'devfreq_qos_sanity_check': drivers/devfreq/devfreq.c:448:7: warning: suggest parentheses around '&&' within '||' [-Wparentheses] drivers/devfreq/devfreq.c:494:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] drivers/devfreq/devfreq.c:639:16: error: invalid storage class for function 'show_governor' drivers/devfreq/devfreq.c:645:16: error: invalid storage class for function 'show_freq' drivers/devfreq/devfreq.c:651:16: error: invalid storage class for function 'show_polling_interval' drivers/devfreq/devfreq.c:657:16: error: invalid storage class for function 'store_polling_interval' drivers/devfreq/devfreq.c:691:16: error: invalid storage class for function 'show_central_polling' drivers/devfreq/devfreq.c:698:16: error: invalid storage class for function 'show_qos_min_freq' drivers/devfreq/devfreq.c:705:16: error: invalid storage class for function 'store_min_freq' drivers/devfreq/devfreq.c:733:16: error: invalid storage class for function 'show_min_freq' drivers/devfreq/devfreq.c:739:16: error: invalid storage class for function 'store_max_freq' drivers/devfreq/devfreq.c:767:16: error: invalid storage class for function 'show_max_freq' drivers/devfreq/devfreq.c:773:16: error: invalid storage class for function 'show_trans_table' drivers/devfreq/devfreq.c:815:2: error: initializer element is not constant drivers/devfreq/devfreq.c:815:2: error: (near initialization for 'devfreq_attrs[0].show') drivers/devfreq/devfreq.c:816:2: error: initializer element is not constant drivers/devfreq/devfreq.c:816:2: error: (near initialization for 'devfreq_attrs[1].show') drivers/devfreq/devfreq.c:817:2: error: initializer element is not constant drivers/devfreq/devfreq.c:817:2: error: (near initialization for 'devfreq_attrs[2].show') drivers/devfreq/devfreq.c:818:2: error: initializer element is not constant drivers/devfreq/devfreq.c:818:2: error: (near initialization for 'devfreq_attrs[3].show') drivers/devfreq/devfreq.c:818:2: error: initializer element is not constant drivers/devfreq/devfreq.c:818:2: error: (near initialization for 'devfreq_attrs[3].store') drivers/devfreq/devfreq.c:820:2: error: initializer element is not constant drivers/devfreq/devfreq.c:820:2: error: (near initialization for 'devfreq_attrs[4].show') drivers/devfreq/devfreq.c:820:2: error: initializer element is not constant drivers/devfreq/devfreq.c:820:2: error: (near initialization for 'devfreq_attrs[4].store') drivers/devfreq/devfreq.c:821:2: error: initializer element is not constant drivers/devfreq/devfreq.c:821:2: error: (near initialization for 'devfreq_attrs[5].show') drivers/devfreq/devfreq.c:821:2: error: initializer element is not constant drivers/devfreq/devfreq.c:821:2: error: (near initialization for 'devfreq_attrs[5].store') drivers/devfreq/devfreq.c:822:2: error: initializer element is not constant drivers/devfreq/devfreq.c:822:2: error: (near initialization for 'devfreq_attrs[6].show') drivers/devfreq/devfreq.c:823:2: error: initializer element is not constant drivers/devfreq/devfreq.c:823:2: error: (near initialization for 'devfreq_attrs[7].show') drivers/devfreq/devfreq.c:831:19: error: invalid storage class for function 'devfreq_start_polling' drivers/devfreq/devfreq.c:842:1: error: initializer element is not constant drivers/devfreq/devfreq.c:844:19: error: invalid storage class for function 'devfreq_init' drivers/devfreq/devfreq.c:854:1: error: initializer element is not constant drivers/devfreq/devfreq.c:856:20: error: invalid storage class for function 'devfreq_exit' drivers/devfreq/devfreq.c:860:1: error: initializer element is not constant drivers/devfreq/devfreq.c:875:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] drivers/devfreq/devfreq.c:936:1: error: expected declaration or statement at end of input --- 0-DAY kernel build testing backend Open Source Technology Center Fengguang Wu, Yuanhan Liu Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html