Hi, kernel 3.18.55 compilation fails with this error:

kernel/fork.c: In function ‘dup_task_struct’:
kernel/fork.c:341:2: error: implicit declaration of function
‘get_random_long’ [-Werror=implicit-function-declaration]
tsk->stack_canary = get_random_long();

Corrected by adding the declaration to include/linux/random.h line 26 :

 unsigned long get_random_long(void);

Sorry, I really can't understand how to generate a patch from a tagged
release, my git-fu is far too low...

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Emmanuel Florac     |   Direction technique
                    |   Intellique
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