include/linux/kcsan-checks.h

3  * KCSAN access checks and modifiers. These can be used to explicitly check
16 /* Access types -- if KCSAN_ACCESS_WRITE is not set, the access is a read. */
17 #define KCSAN_ACCESS_WRITE	(1 << 0) /* Access is a write. */
19 #define KCSAN_ACCESS_ATOMIC	(1 << 2) /* Access is atomic. */
21 #define KCSAN_ACCESS_ASSERT	(1 << 3) /* Access is an assertion. */
22 #define KCSAN_ACCESS_SCOPED	(1 << 4) /* Access is a scoped access. */
27  * to validate access to an address. Never use these in header files!
31  * __kcsan_check_access - check generic access for races
33  * @ptr: address of access
34  * @size: size of access
35  * @type: access type modifier
121  * kcsan_set_access_mask - set access mask
123  * Set the access mask for all accesses for the current context if non-zero.
130 /* Scoped access information. */
136 		 * the access was initialized.
141 	/* Access information. */
145 	/* Location where scoped access was set up. */
157  * kcsan_begin_scoped_access - begin scoped access
159  * Begin scoped access and initialize @sa, which will cause KCSAN to
167  * @ptr: address of access
168  * @size: size of access
169  * @type: access type modifier
170  * @sa: struct kcsan_scoped_access to use for the scope of the access
177  * kcsan_end_scoped_access - end scoped access
179  * End a scoped access, which will stop KCSAN checking the memory range.
271  * __kcsan_check_read - check regular read access for races
273  * @ptr: address of access
274  * @size: size of access
279  * __kcsan_check_write - check regular write access for races
281  * @ptr: address of access
282  * @size: size of access
288  * __kcsan_check_read_write - check regular read-write access for races
290  * @ptr: address of access
291  * @size: size of access
297  * kcsan_check_read - check regular read access for races
299  * @ptr: address of access
300  * @size: size of access
305  * kcsan_check_write - check regular write access for races
307  * @ptr: address of access
308  * @size: size of access
314  * kcsan_check_read_write - check regular read-write access for races
316  * @ptr: address of access
317  * @size: size of access
429  * For example, where exclusive access is expected after determining no other
494  * Note: The access that immediately follows ASSERT_EXCLUSIVE_BITS() is assumed
495  * to access the masked bits only, and KCSAN optimistically assumes it is