On Mon, Jul 20, 2015 at 08:49:38AM +0100, Build bot for Mark Brown wrote: Today's -next fails to build an ARM allmodconfig due to some implicit definitions introduced in 1ac0bfba883ee2bf (Coresight: Add an interface for supporting ETM3/4 Context ID tracing) which introduces dependencies on sched.h but doesn't add an include of that header leading to problems if it's not implicitly included by something else: > arm-allmodconfig > ../include/linux/coresight.h:259:2: error: implicit declaration of function 'find_task_by_vpid' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:261:3: error: implicit declaration of function 'task_pid_nr' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:259:2: error: implicit declaration of function 'find_task_by_vpid' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:261:3: error: implicit declaration of function 'task_pid_nr' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:259:2: error: implicit declaration of function 'find_task_by_vpid' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:261:3: error: implicit declaration of function 'task_pid_nr' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:259:2: error: implicit declaration of function 'find_task_by_vpid' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:261:3: error: implicit declaration of function 'task_pid_nr' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:259:2: error: implicit declaration of function 'find_task_by_vpid' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:261:3: error: implicit declaration of function 'task_pid_nr' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:259:2: error: implicit declaration of function 'find_task_by_vpid' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:261:3: error: implicit declaration of function 'task_pid_nr' [-Werror=implicit-function-declaration] > ../include/linux/sched.h:1899:21: error: static declaration of 'task_pid_nr' follows non-static declaration > ../include/linux/sched.h:2427:28: error: conflicting types for 'find_task_by_vpid' > ../include/linux/coresight.h:259:2: error: implicit declaration of function 'find_task_by_vpid' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:261:3: error: implicit declaration of function 'task_pid_nr' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:259:2: error: implicit declaration of function 'find_task_by_vpid' [-Werror=implicit-function-declaration] > ../include/linux/coresight.h:261:3: error: implicit declaration of function 'task_pid_nr' [-Werror=implicit-function-declaration]
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