On Wed, Oct 19, 2016 at 11:28 AM, Mark Rutland <mark.rutland@xxxxxxx> wrote: > When CONFIG_THREAD_INFO_IN_TASK is selected, the current_thread_info() > macro relies on current having been defined prior to its use. However, > not all users of current_thread_info() include <asm/current.h>, and thus > current is not guaranteed to be defined. > > When CONFIG_THREAD_INFO_IN_TASK is not selected, it's possible that > get_current() / current are based upon current_thread_info(), and > <asm/current.h> includes <asm/thread_info.h>. Thus always including > <asm/current.h> would result in circular dependences on some platforms. > > To ensure both cases work, this patch includes <asm/current.h>, but only > when CONFIG_THREAD_INFO_IN_TASK is selected. Reviewed-by: Andy Lutomirski <luto@xxxxxxxxxx> although it would be nice if you moved your description of why the include is conditional into a comment. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
