Lines Matching refs:pointer

12 	to load an RCU-protected pointer, otherwise CONFIG_PROVE_RCU
17 	different values for a single pointer!  Without rcu_dereference(),
18 	DEC Alpha can load a pointer, dereference that pointer, and
20 	the pointer.
23 	compiler from deducing the resulting pointer value.  Please see
26 	value of the pointer, and thus cause misordering.
37 	Of course, if "p" is a pointer from rcu_dereference(), and "a"
106 	substitute the pointer you are comparing against for the pointer
127 	o	The comparison was against the NULL pointer.  If the
128 		compiler knows that the pointer is NULL, you had better
134 	o	The pointer is never dereferenced after being compared.
141 	o	The comparison is against a pointer that references memory
165 	o	The pointer being compared against also came from
184 		pointer.  Note that the volatile cast in rcu_dereference()
188 		pointer takes on only one of two values, a not-equal
190 		compiler needs to deduce the value of the pointer.
317 If a pointer obtained from rcu_dereference() compares not-equal to some
318 other pointer, the compiler normally has no clue what the value of the
319 first pointer might be.  This lack of knowledge prevents the compiler
367 dereference the resulting pointer.